v0.0.3 published

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2025-06-02 11:27:10 +08:00
commit dca4f11e0d
61 changed files with 16453 additions and 0 deletions

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# ---- Stage 1: Builder/Base ----
# This stage sets up the base environment, installs build tools, creates scripts and templates
FROM ubuntu:22.04 AS builder
ENV DEBIAN_FRONTEND=noninteractive
ENV TZ=Asia/Shanghai
# Set the timezone
RUN ln -sf /usr/share/zoneinfo/$TZ /etc/localtime && \
echo $TZ > /etc/timezone
# Install all required packages in a single layer
RUN apt-get update && \
apt-get install -y --no-install-recommends \
locales \
git \
nginx-full \
gettext-base && \
sed -i 's/# zh_CN.UTF-8 UTF-8/zh_CN.UTF-8 UTF-8/' /etc/locale.gen && \
locale-gen && \
update-locale LANG=zh_CN.UTF-8 && \
rm -rf /var/lib/apt/lists/*
# Create non-root user for security
RUN groupadd -r hexo && useradd -r -g hexo -d /home/hexo -s /bin/bash hexo
# Make essential directories for artifacts
RUN mkdir -p /etc/container/templates && \
mkdir -p /app && \
mkdir -p /home/hexo
# Configure git hook with proper permissions
RUN git init --bare /home/hexo/hexo.git && \
echo "#!/bin/bash" > /home/hexo/hexo.git/hooks/post-receive && \
echo "git --work-tree=/home/www/hexo --git-dir=/home/hexo/hexo.git checkout -f" >> /home/hexo/hexo.git/hooks/post-receive && \
echo "chown -R hexo:hexo /home/www/hexo" >> /home/hexo/hexo.git/hooks/post-receive && \
chmod +x /home/hexo/hexo.git/hooks/post-receive && \
chown -R hexo:hexo /home/hexo/hexo.git
# Backup original nginx.conf
RUN cp /etc/nginx/nginx.conf /etc/nginx/nginx.conf.bak
# Create improved SSH Config Template using multiple echo commands
RUN echo 'Port ${SSH_PORT:-22}' > /etc/container/templates/sshd_config.template && \
echo 'ListenAddress 0.0.0.0' >> /etc/container/templates/sshd_config.template && \
echo 'ListenAddress ::' >> /etc/container/templates/sshd_config.template && \
echo 'PermitRootLogin ${PERMIT_ROOT_LOGIN:-no}' >> /etc/container/templates/sshd_config.template && \
echo 'PubkeyAuthentication yes' >> /etc/container/templates/sshd_config.template && \
echo 'AuthorizedKeysFile .ssh/authorized_keys' >> /etc/container/templates/sshd_config.template && \
echo 'PasswordAuthentication no' >> /etc/container/templates/sshd_config.template && \
echo 'ChallengeResponseAuthentication no' >> /etc/container/templates/sshd_config.template && \
echo 'UsePAM yes' >> /etc/container/templates/sshd_config.template && \
echo 'X11Forwarding no' >> /etc/container/templates/sshd_config.template && \
echo 'PrintMotd no' >> /etc/container/templates/sshd_config.template && \
echo 'AcceptEnv LANG LC_*' >> /etc/container/templates/sshd_config.template && \
echo 'Subsystem sftp /usr/lib/openssh/sftp-server' >> /etc/container/templates/sshd_config.template && \
echo 'AllowUsers hexo' >> /etc/container/templates/sshd_config.template
# Create Nginx Config Template with security headers using printf
RUN printf 'user ${NGINX_USER:-hexo};\nworker_processes ${NGINX_WORKERS:-auto};\npid /var/run/nginx.pid;\n\nevents {\n worker_connections ${NGINX_CONNECTIONS:-1024};\n use epoll;\n multi_accept on;\n}\n\nhttp {\n include /etc/nginx/mime.types;\n default_type application/octet-stream;\n \n access_log /var/log/nginx/access.log;\n error_log /var/log/nginx/error.log;\n \n sendfile on;\n tcp_nopush on;\n tcp_nodelay on;\n keepalive_timeout 65;\n types_hash_max_size 2048;\n \n add_header X-Frame-Options DENY;\n add_header X-Content-Type-Options nosniff;\n add_header X-XSS-Protection "1; mode=block";\n \n gzip on;\n gzip_vary on;\n gzip_proxied any;\n gzip_comp_level 6;\n gzip_types text/plain text/css application/json application/javascript text/xml application/xml application/xml+rss text/javascript;\n\n server {\n listen ${HTTP_PORT:-80};\n server_name ${SERVER_NAME:-localhost};\n root ${WEB_ROOT:-/home/www/hexo};\n index index.html index.htm;\n \n server_tokens off;\n \n location / {\n try_files $uri $uri/ =404;\n }\n \n location ~* \\.(jpg|jpeg|png|gif|ico|css|js)$ {\n expires 1y;\n add_header Cache-Control "public, immutable";\n }\n }\n}' > /etc/container/templates/nginx.conf.template
# Create improved start script using printf for better formatting
RUN printf '#!/bin/bash\n\nRED="\\033[0;31m"\nGREEN="\\033[0;32m"\nYELLOW="\\033[1;33m"\nBLUE="\\033[0;34m"\nNC="\\033[0m"\n\nLOG_DIR="/var/log/container"\nLOG_FILE="$LOG_DIR/services.log"\nMAX_LOG_SIZE=10485760\n\n_log() {\n local level_color=$1\n local level_name=$2\n shift 2\n echo -e "${level_color}[${level_name}]${NC} $(date \047+%%Y-%%m-%%d %%H:%%M:%%S\047) - $@"\n}\nlog_info() { _log "$BLUE" "INFO" "$@"; }\nlog_success() { _log "$GREEN" "SUCCESS" "$@"; }\nlog_warning() { _log "$YELLOW" "WARNING" "$@"; }\nlog_error() { _log "$RED" "ERROR" "$@"; }\n\nsetup_logging() {\n mkdir -p "$LOG_DIR"\n touch "$LOG_FILE"\n log_info "Logging to console and $LOG_FILE"\n exec > >(tee -a "$LOG_FILE") 2> >(tee -a "$LOG_FILE" >&2)\n}\n\nrender_config() {\n log_info "Rendering configuration templates..."\n local rendered=0\n \n if envsubst < /etc/container/templates/sshd_config.template > /etc/ssh/sshd_config; then\n log_success "SSHD configuration rendered"; ((rendered++))\n else \n log_error "Failed to render SSHD configuration"; \n fi\n \n if envsubst < /etc/container/templates/nginx.conf.template > /etc/nginx/nginx.conf; then\n log_success "Nginx configuration rendered"; ((rendered++))\n else \n log_error "Failed to render Nginx configuration"; \n fi\n \n if [ "$rendered" -eq 2 ]; then \n log_success "All configuration files rendered"\n return 0\n else \n log_error "Failed to render some configuration files"\n return 1\n fi\n}\n\nstart_services() {\n log_info "Starting SSH service..."\n if [ ! -f "/etc/ssh/ssh_host_rsa_key" ]; then\n log_info "Generating SSH host keys..."\n ssh-keygen -A\n fi\n \n /usr/sbin/sshd -D &\n SSH_PID=$!\n \n log_info "Starting Nginx service..."\n nginx -g "daemon off;" &\n NGINX_PID=$!\n \n sleep 2\n \n if kill -0 $SSH_PID 2>/dev/null && kill -0 $NGINX_PID 2>/dev/null; then\n log_success "All services started successfully"\n return 0\n else\n log_error "Failed to start some services"\n return 1\n fi\n}\n\nmonitor_services() {\n log_info "Starting service monitoring..."\n while true; do\n sleep 30\n \n if ! kill -0 $SSH_PID 2>/dev/null; then\n log_error "SSH service stopped, attempting restart..."\n /usr/sbin/sshd -D &\n SSH_PID=$!\n fi\n \n if ! kill -0 $NGINX_PID 2>/dev/null; then\n log_error "Nginx service stopped, attempting restart..."\n nginx -g "daemon off;" &\n NGINX_PID=$!\n fi\n done\n}\n\ncleanup() {\n log_info "Received shutdown signal, gracefully stopping services..."\n \n if [ ! -z "$NGINX_PID" ] && kill -0 $NGINX_PID 2>/dev/null; then\n log_info "Stopping Nginx (PID:$NGINX_PID)"\n kill -TERM $NGINX_PID\n wait $NGINX_PID 2>/dev/null\n log_success "Nginx stopped"\n fi\n \n if [ ! -z "$SSH_PID" ] && kill -0 $SSH_PID 2>/dev/null; then\n log_info "Stopping SSH (PID:$SSH_PID)"\n kill -TERM $SSH_PID\n wait $SSH_PID 2>/dev/null\n log_success "SSH stopped"\n fi\n \n log_info "Container shutdown complete"\n exit 0\n}\n\ntrap cleanup SIGTERM SIGINT\n\nmain() {\n setup_logging\n log_info "===== Container Starting ====="\n log_info "Time: $(date)"\n log_info "Timezone: $TZ"\n log_info "User: $(whoami)"\n \n if ! render_config; then\n log_error "Configuration rendering failed"\n exit 1\n fi\n \n if ! /usr/sbin/sshd -t; then\n log_error "SSH configuration test failed"\n exit 1\n fi\n \n if ! nginx -t; then\n log_error "Nginx configuration test failed"\n exit 1\n fi\n \n if ! start_services; then\n exit 1\n fi\n \n log_success "===== All services started successfully ====="\n monitor_services\n}\n\nmain' > /app/start.sh && \
chmod +x /app/start.sh
# ---- Stage 2: Production ----
# This stage builds the final runtime image with only necessary dependencies
FROM ubuntu:22.04 AS production
ENV DEBIAN_FRONTEND=noninteractive
ENV TZ=Asia/Shanghai
ENV PUID=1000
ENV PGID=1000
ENV LANG=zh_CN.UTF-8
# Copy timezone and locale settings from builder
COPY --from=builder /etc/localtime /etc/localtime
COPY --from=builder /etc/timezone /etc/timezone
COPY --from=builder /usr/lib/locale/zh_CN.utf8 /usr/lib/locale/zh_CN.utf8/
COPY --from=builder /etc/default/locale /etc/default/locale
# Install only runtime dependencies
RUN apt-get update && \
apt-get install -y --no-install-recommends \
openssh-server \
git \
nginx-full \
gettext-base \
curl && \
rm -rf /var/lib/apt/lists/*
# Create hexo user
RUN groupadd -r hexo && \
useradd -r -g hexo -d /home/hexo -s /bin/bash hexo
# Create necessary directories with secure permissions
RUN mkdir -p /home/hexo/.ssh && \
mkdir -p /home/www/hexo && \
mkdir -p /home/www/ssl && \
mkdir -p /var/run/sshd && \
mkdir -p /var/log/container && \
mkdir -p /var/log/nginx
# Copy artifacts from builder stage
COPY --from=builder /home/hexo/hexo.git /home/hexo/hexo.git
COPY --from=builder /etc/container/templates /etc/container/templates/
COPY --from=builder /app/start.sh /root/start.sh
COPY --from=builder /etc/nginx/nginx.conf.bak /etc/nginx/nginx.conf.bak
# Set proper permissions for security
RUN chmod +x /root/start.sh && \
chmod +x /home/hexo/hexo.git/hooks/post-receive && \
chown -R hexo:hexo /home/www/hexo && \
chown -R hexo:hexo /home/hexo && \
chmod -R 755 /home/www/hexo && \
chmod 700 /home/hexo/.ssh
# Health check
HEALTHCHECK --interval=30s --timeout=3s --start-period=5s --retries=3 \
CMD curl -f http://localhost/ || exit 1
VOLUME ["/home/www/hexo", "/home/hexo/.ssh", "/home/www/ssl", "/home/hexo/hexo.git", "/var/log/container", "/var/log/nginx"]
EXPOSE 22 80 443
CMD ["/root/start.sh"]

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# Dockerfile v0.0.2 - Enhanced Hexo Deployment Container
# Improvements:
# - Enhanced readability with heredoc syntax for scripts
# - Fixed PUID/PGID support for proper user/group mapping
# - Intelligent log rotation with 10MB file size limit
# - Optimized production image (removed vim, nodejs, npm)
# - Enhanced security configurations (CSP headers, MaxAuthTries, ClientAlive)
# - Dedicated health endpoint (/health)
# - Improved post-receive hook with detailed logging
# - Dynamic volume permission management
# ---- Stage 1: Builder/Base ----
# This stage sets up the base environment, installs build tools, creates scripts and templates
FROM ubuntu:22.04 AS builder
ARG TZ=Asia/Shanghai
ARG PUID=1000
ARG PGID=1000
ENV DEBIAN_FRONTEND=noninteractive
ENV TZ=${TZ}
# Set the timezone
RUN ln -sf /usr/share/zoneinfo/$TZ /etc/localtime && \
echo $TZ > /etc/timezone
# Install all required packages in a single layer
RUN apt-get update && \
apt-get install -y --no-install-recommends \
locales \
git \
nginx-full \
gettext-base && \
sed -i 's/# zh_CN.UTF-8 UTF-8/zh_CN.UTF-8 UTF-8/' /etc/locale.gen && \
locale-gen && \
update-locale LANG=zh_CN.UTF-8 && \
rm -rf /var/lib/apt/lists/*
# Create directories for artifacts
RUN mkdir -p /etc/container/templates && \
mkdir -p /app && \
mkdir -p /home/hexo
# Configure git hook with improved logging using heredoc
RUN git init --bare /home/hexo/hexo.git
# Create enhanced post-receive hook with detailed logging
RUN cat << 'EOF' > /home/hexo/hexo.git/hooks/post-receive
#!/bin/bash
# Enhanced post-receive hook with detailed logging
LOG_FILE="/var/log/container/deployment.log"
DEPLOY_TIME=$(date '+%Y-%m-%d %H:%M:%S')
log_deploy() {
echo "[$DEPLOY_TIME] $*" | tee -a "$LOG_FILE"
}
log_deploy "===== Starting Git Deployment ====="
log_deploy "Deploy initiated by: $(whoami)"
log_deploy "Git repository: $PWD"
log_deploy "Target directory: /home/www/hexo"
# Ensure target directory exists
if [ ! -d "/home/www/hexo" ]; then
log_deploy "Creating target directory /home/www/hexo"
mkdir -p /home/www/hexo
fi
# Checkout files
log_deploy "Checking out files..."
if git --work-tree=/home/www/hexo --git-dir=/home/hexo/hexo.git checkout -f; then
log_deploy "Git checkout completed successfully"
else
log_deploy "ERROR: Git checkout failed"
exit 1
fi
# Set proper ownership and permissions
log_deploy "Setting file ownership and permissions..."
if chown -R hexo:hexo /home/www/hexo; then
log_deploy "File ownership set successfully"
else
log_deploy "WARNING: Failed to set file ownership"
fi
if chmod -R 755 /home/www/hexo; then
log_deploy "File permissions set successfully"
else
log_deploy "WARNING: Failed to set file permissions"
fi
# Count deployed files
FILE_COUNT=$(find /home/www/hexo -type f | wc -l)
TOTAL_SIZE=$(du -sh /home/www/hexo 2>/dev/null | cut -f1)
log_deploy "Deployment completed successfully"
log_deploy "Files deployed: $FILE_COUNT"
log_deploy "Total size: $TOTAL_SIZE"
log_deploy "===== Git Deployment Finished ====="
EOF
RUN chmod +x /home/hexo/hexo.git/hooks/post-receive
# Backup original nginx.conf
RUN cp /etc/nginx/nginx.conf /etc/nginx/nginx.conf.bak
# Create enhanced SSH Config Template with security improvements using heredoc
RUN cat << 'EOF' > /etc/container/templates/sshd_config.template
# Enhanced SSH Configuration with Security Hardening
Port ${SSH_PORT:-22}
ListenAddress 0.0.0.0
ListenAddress ::
# Authentication settings
PermitRootLogin ${PERMIT_ROOT_LOGIN:-no}
PubkeyAuthentication yes
AuthorizedKeysFile .ssh/authorized_keys
PasswordAuthentication no
ChallengeResponseAuthentication no
UsePAM yes
# Security enhancements
MaxAuthTries 3
ClientAliveInterval 300
ClientAliveCountMax 2
LoginGraceTime 60
MaxStartups 10:30:60
# Disable unnecessary features
X11Forwarding no
AllowTcpForwarding no
GatewayPorts no
PermitTunnel no
PrintMotd no
# Environment and subsystem
AcceptEnv LANG LC_*
Subsystem sftp /usr/lib/openssh/sftp-server
# User restrictions
AllowUsers hexo
EOF
# Create enhanced Nginx Config Template with security headers and health endpoint using heredoc
RUN cat << 'EOF' > /etc/container/templates/nginx.conf.template
user ${NGINX_USER:-hexo};
worker_processes ${NGINX_WORKERS:-auto};
pid /var/run/nginx.pid;
events {
worker_connections ${NGINX_CONNECTIONS:-1024};
use epoll;
multi_accept on;
}
http {
include /etc/nginx/mime.types;
default_type application/octet-stream;
# Logging
access_log /var/log/nginx/access.log;
error_log /var/log/nginx/error.log;
# Performance optimizations
sendfile on;
tcp_nopush on;
tcp_nodelay on;
keepalive_timeout 65;
types_hash_max_size 2048;
# Enhanced security headers
add_header X-Frame-Options DENY always;
add_header X-Content-Type-Options nosniff always;
add_header X-XSS-Protection "1; mode=block" always;
add_header Content-Security-Policy "default-src 'self'; script-src 'self' 'unsafe-inline'; style-src 'self' 'unsafe-inline'; img-src 'self' data:; font-src 'self';" always;
add_header Referrer-Policy "strict-origin-when-cross-origin" always;
# Compression
gzip on;
gzip_vary on;
gzip_proxied any;
gzip_comp_level 6;
gzip_types
text/plain
text/css
text/xml
text/javascript
application/json
application/javascript
application/xml+rss
application/atom+xml
image/svg+xml;
server {
listen ${HTTP_PORT:-80};
server_name ${SERVER_NAME:-localhost};
root ${WEB_ROOT:-/home/www/hexo};
index index.html index.htm;
server_tokens off;
# Main site location
location / {
try_files $uri $uri/ =404;
}
# Dedicated health check endpoint
location /health {
access_log off;
return 200 "OK\n";
add_header Content-Type text/plain;
}
# Static assets with caching
location ~* \.(jpg|jpeg|png|gif|ico|css|js|woff|woff2|ttf|eot|svg)$ {
expires 1y;
add_header Cache-Control "public, immutable";
add_header Vary Accept-Encoding;
}
# Security: deny access to hidden files
location ~ /\. {
deny all;
access_log off;
log_not_found off;
}
}
}
EOF
# Create enhanced start script with heredoc for better readability and maintainability
RUN cat << 'EOF' > /app/start.sh
#!/bin/bash
# Enhanced startup script with improved logging, error handling, and dynamic permissions
# Version: 0.0.2
# Color definitions for logging
RED="\033[0;31m"
GREEN="\033[0;32m"
YELLOW="\033[1;33m"
BLUE="\033[0;34m"
NC="\033[0m"
# Configuration
LOG_DIR="/var/log/container"
LOG_FILE="$LOG_DIR/services.log"
MAX_LOG_SIZE=10485760 # 10MB
# Logging functions
_log() {
local level_color=$1
local level_name=$2
shift 2
echo -e "${level_color}[${level_name}]${NC} $(date '+%Y-%m-%d %H:%M:%S') - $*"
}
log_info() { _log "$BLUE" "INFO" "$@"; }
log_success() { _log "$GREEN" "SUCCESS" "$@"; }
log_warning() { _log "$YELLOW" "WARNING" "$@"; }
log_error() { _log "$RED" "ERROR" "$@"; }
# Setup logging with rotation
setup_logging() {
mkdir -p "$LOG_DIR"
touch "$LOG_FILE"
# Rotate log if it's too large
if [ -f "$LOG_FILE" ] && [ $(stat -c%s "$LOG_FILE" 2>/dev/null || echo 0) -gt $MAX_LOG_SIZE ]; then
log_info "Log file size exceeded ${MAX_LOG_SIZE} bytes, rotating..."
mv "$LOG_FILE" "${LOG_FILE}.old"
touch "$LOG_FILE"
log_info "Log rotation completed"
fi
log_info "Logging to console and $LOG_FILE"
exec > >(tee -a "$LOG_FILE") 2> >(tee -a "$LOG_FILE" >&2)
}
# Apply dynamic PUID/PGID if different from defaults
apply_dynamic_permissions() {
local current_uid=$(id -u hexo)
local current_gid=$(id -g hexo)
local target_uid=${PUID:-1000}
local target_gid=${PGID:-1000}
if [ "$current_uid" != "$target_uid" ] || [ "$current_gid" != "$target_gid" ]; then
log_info "Applying dynamic user/group mapping: $current_uid:$current_gid -> $target_uid:$target_gid"
# Update group if needed
if [ "$current_gid" != "$target_gid" ]; then
groupmod -g "$target_gid" hexo
log_info "Updated hexo group ID to $target_gid"
fi
# Update user if needed
if [ "$current_uid" != "$target_uid" ]; then
usermod -u "$target_uid" hexo
log_info "Updated hexo user ID to $target_uid"
fi
# Update ownership of important directories
log_info "Updating ownership of critical directories..."
chown -R hexo:hexo /home/hexo /home/www/hexo 2>/dev/null || true
log_success "Dynamic permissions applied successfully"
else
log_info "User/group IDs already match target values ($target_uid:$target_gid)"
fi
}
# Render configuration templates
render_config() {
log_info "Rendering configuration templates..."
local rendered=0
# Render SSH configuration
if envsubst < /etc/container/templates/sshd_config.template > /etc/ssh/sshd_config; then
log_success "SSH configuration rendered"
((rendered++))
else
log_error "Failed to render SSH configuration"
fi
# Render Nginx configuration
if envsubst < /etc/container/templates/nginx.conf.template > /etc/nginx/nginx.conf; then
log_success "Nginx configuration rendered"
((rendered++))
else
log_error "Failed to render Nginx configuration"
fi
if [ "$rendered" -eq 2 ]; then
log_success "All configuration files rendered successfully"
return 0
else
log_error "Failed to render some configuration files"
return 1
fi
}
# Start services
start_services() {
log_info "Starting services..."
# Generate SSH host keys if needed
if [ ! -f "/etc/ssh/ssh_host_rsa_key" ]; then
log_info "Generating SSH host keys..."
ssh-keygen -A
log_success "SSH host keys generated"
fi
# Start SSH service
log_info "Starting SSH service..."
/usr/sbin/sshd -D &
SSH_PID=$!
# Start Nginx service
log_info "Starting Nginx service..."
nginx -g "daemon off;" &
NGINX_PID=$!
# Wait for services to start
sleep 3
# Verify services are running
if kill -0 $SSH_PID 2>/dev/null && kill -0 $NGINX_PID 2>/dev/null; then
log_success "All services started successfully"
log_info "SSH PID: $SSH_PID"
log_info "Nginx PID: $NGINX_PID"
return 0
else
log_error "Failed to start some services"
return 1
fi
}
# Monitor services and restart if needed
monitor_services() {
log_info "Starting service monitoring (30s intervals)..."
while true; do
sleep 30
# Check SSH service
if ! kill -0 $SSH_PID 2>/dev/null; then
log_error "SSH service stopped unexpectedly, attempting restart..."
/usr/sbin/sshd -D &
SSH_PID=$!
if kill -0 $SSH_PID 2>/dev/null; then
log_success "SSH service restarted successfully (PID: $SSH_PID)"
else
log_error "Failed to restart SSH service"
fi
fi
# Check Nginx service
if ! kill -0 $NGINX_PID 2>/dev/null; then
log_error "Nginx service stopped unexpectedly, attempting restart..."
nginx -g "daemon off;" &
NGINX_PID=$!
if kill -0 $NGINX_PID 2>/dev/null; then
log_success "Nginx service restarted successfully (PID: $NGINX_PID)"
else
log_error "Failed to restart Nginx service"
fi
fi
done
}
# Graceful shutdown
cleanup() {
log_info "Received shutdown signal, gracefully stopping services..."
# Stop Nginx
if [ ! -z "$NGINX_PID" ] && kill -0 $NGINX_PID 2>/dev/null; then
log_info "Stopping Nginx (PID: $NGINX_PID)"
kill -TERM $NGINX_PID
wait $NGINX_PID 2>/dev/null
log_success "Nginx stopped gracefully"
fi
# Stop SSH
if [ ! -z "$SSH_PID" ] && kill -0 $SSH_PID 2>/dev/null; then
log_info "Stopping SSH (PID: $SSH_PID)"
kill -TERM $SSH_PID
wait $SSH_PID 2>/dev/null
log_success "SSH stopped gracefully"
fi
log_info "Container shutdown completed"
exit 0
}
# Main execution function
main() {
setup_logging
log_info "===== Hexo Container Starting (v0.0.2) ====="
log_info "Timestamp: $(date)"
log_info "Timezone: $TZ"
log_info "Current user: $(whoami)"
log_info "PUID: ${PUID:-1000}, PGID: ${PGID:-1000}"
# Apply dynamic permissions
apply_dynamic_permissions
# Render configurations
if ! render_config; then
log_error "Configuration rendering failed"
exit 1
fi
# Test configurations
log_info "Testing configurations..."
if ! /usr/sbin/sshd -t; then
log_error "SSH configuration test failed"
exit 1
fi
log_success "SSH configuration test passed"
if ! nginx -t; then
log_error "Nginx configuration test failed"
exit 1
fi
log_success "Nginx configuration test passed"
# Start services
if ! start_services; then
log_error "Service startup failed"
exit 1
fi
log_success "===== All services started successfully ====="
log_info "Container ready for connections"
log_info "SSH: Port ${SSH_PORT:-22}"
log_info "HTTP: Port ${HTTP_PORT:-80}"
log_info "Health check: http://localhost/health"
# Start monitoring
monitor_services
}
# Set up signal handlers
trap cleanup SIGTERM SIGINT
# Start main execution
main
EOF
RUN chmod +x /app/start.sh
# ---- Stage 2: Production ----
# This stage builds the final runtime image with only necessary dependencies
FROM ubuntu:22.04 AS production
ARG TZ=Asia/Shanghai
ARG PUID=1000
ARG PGID=1000
ENV DEBIAN_FRONTEND=noninteractive
ENV TZ=${TZ}
ENV PUID=${PUID}
ENV PGID=${PGID}
ENV LANG=zh_CN.UTF-8
# Copy timezone and locale settings from builder
COPY --from=builder /etc/localtime /etc/localtime
COPY --from=builder /etc/timezone /etc/timezone
COPY --from=builder /usr/lib/locale/zh_CN.utf8 /usr/lib/locale/zh_CN.utf8/
COPY --from=builder /etc/default/locale /etc/default/locale
# Install only runtime dependencies (removed vim, nodejs, npm for minimal production image)
RUN apt-get update && \
apt-get install -y --no-install-recommends \
openssh-server \
git \
nginx-full \
gettext-base \
curl \
ca-certificates && \
rm -rf /var/lib/apt/lists/*
# Create hexo user with proper PUID/PGID mapping
RUN groupadd -g ${PGID} hexo && \
useradd -u ${PUID} -g hexo -d /home/hexo -s /bin/bash hexo
# Create necessary directories with secure permissions
RUN mkdir -p /home/hexo/.ssh && \
mkdir -p /home/www/hexo && \
mkdir -p /home/www/ssl && \
mkdir -p /var/run/sshd && \
mkdir -p /var/log/container && \
mkdir -p /var/log/nginx
# Copy artifacts from builder stage
COPY --from=builder /home/hexo/hexo.git /home/hexo/hexo.git
COPY --from=builder /etc/container/templates /etc/container/templates/
COPY --from=builder /app/start.sh /root/start.sh
COPY --from=builder /etc/nginx/nginx.conf.bak /etc/nginx/nginx.conf.bak
# Set proper permissions for security
RUN chmod +x /root/start.sh && \
chmod +x /home/hexo/hexo.git/hooks/post-receive && \
chown -R hexo:hexo /home/www/hexo && \
chown -R hexo:hexo /home/hexo && \
chmod -R 755 /home/www/hexo && \
chmod 700 /home/hexo/.ssh && \
chmod 755 /var/log/container && \
chmod 755 /var/log/nginx
# Enhanced health check using the dedicated /health endpoint
HEALTHCHECK --interval=30s --timeout=10s --start-period=15s --retries=3 \
CMD curl -f http://localhost/health || exit 1
# Define volumes for persistent data
VOLUME ["/home/www/hexo", "/home/hexo/.ssh", "/home/www/ssl", "/home/hexo/hexo.git", "/var/log/container", "/var/log/nginx"]
# Expose ports
EXPOSE 22 80 443
# Set the startup command
CMD ["/root/start.sh"]

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# ---- Stage 1: Builder/Base ----
# This stage sets up the base environment, installs build tools, creates scripts and templates
FROM ubuntu:22.04 AS builder
ENV DEBIAN_FRONTEND=noninteractive
ENV TZ=Asia/Shanghai
# Set the timezone
RUN ln -sf /usr/share/zoneinfo/$TZ /etc/localtime && \
echo $TZ > /etc/timezone
# Install all required packages in a single layer
RUN apt-get update && \
apt-get install -y --no-install-recommends \
locales \
git \
nginx-full \
gettext-base && \
sed -i 's/# zh_CN.UTF-8 UTF-8/zh_CN.UTF-8 UTF-8/' /etc/locale.gen && \
locale-gen && \
update-locale LANG=zh_CN.UTF-8 && \
rm -rf /var/lib/apt/lists/*
# Create non-root user for security
RUN groupadd -r hexo && useradd -r -g hexo -d /home/hexo -s /bin/bash hexo
# Make essential directories for artifacts
RUN mkdir -p /root/hexo.git/hooks && \
mkdir -p /etc/container/templates && \
mkdir -p /app && \
mkdir -p /home/hexo
# Configure git hook with proper permissions
RUN git init --bare /root/hexo.git && \
echo "#!/bin/bash" > /root/hexo.git/hooks/post-receive && \
echo "git --work-tree=/home/www/hexo --git-dir=/root/hexo.git checkout -f" >> /root/hexo.git/hooks/post-receive && \
echo "chown -R hexo:hexo /home/www/hexo" >> /root/hexo.git/hooks/post-receive && \
chmod +x /root/hexo.git/hooks/post-receive
# Backup original nginx.conf
RUN cp /etc/nginx/nginx.conf /etc/nginx/nginx.conf.bak
# Create improved SSH Config Template
RUN cat > /etc/container/templates/sshd_config.template << 'EOF'
# SSH Configuration Template
Port ${SSH_PORT:-22}
ListenAddress 0.0.0.0
ListenAddress ::
PermitRootLogin ${PERMIT_ROOT_LOGIN:-no}
PubkeyAuthentication yes
AuthorizedKeysFile .ssh/authorized_keys
PasswordAuthentication no
ChallengeResponseAuthentication no
UsePAM yes
X11Forwarding no
PrintMotd no
AcceptEnv LANG LC_*
Subsystem sftp /usr/lib/openssh/sftp-server
EOF
# Create Nginx Config Template with security headers
RUN cat > /etc/container/templates/nginx.conf.template << 'EOF'
# Nginx Configuration Template
user ${NGINX_USER:-hexo};
worker_processes ${NGINX_WORKERS:-auto};
pid /var/run/nginx.pid;
events {
worker_connections ${NGINX_CONNECTIONS:-1024};
use epoll;
multi_accept on;
}
http {
include /etc/nginx/mime.types;
default_type application/octet-stream;
# Logging
access_log /var/log/nginx/access.log;
error_log /var/log/nginx/error.log;
# Performance
sendfile on;
tcp_nopush on;
tcp_nodelay on;
keepalive_timeout 65;
types_hash_max_size 2048;
# Security headers
add_header X-Frame-Options DENY;
add_header X-Content-Type-Options nosniff;
add_header X-XSS-Protection "1; mode=block";
# Gzip compression
gzip on;
gzip_vary on;
gzip_proxied any;
gzip_comp_level 6;
gzip_types text/plain text/css application/json application/javascript text/xml application/xml application/xml+rss text/javascript;
server {
listen ${HTTP_PORT:-80};
server_name ${SERVER_NAME:-localhost};
root ${WEB_ROOT:-/home/www/hexo};
index index.html index.htm;
# Security
server_tokens off;
location / {
try_files $uri $uri/ =404;
}
# Static files caching
location ~* \.(jpg|jpeg|png|gif|ico|css|js)$ {
expires 1y;
add_header Cache-Control "public, immutable";
}
}
}
EOF
# Create improved start script
RUN cat > /app/start.sh << 'EOF'
#!/bin/bash
# Color definitions
RED='\033[0;31m'
GREEN='\033[0;32m'
YELLOW='\033[1;33m'
BLUE='\033[0;34m'
NC='\033[0m' # No Color
# Log file and rotation settings
LOG_DIR="/var/log/container"
LOG_FILE="$LOG_DIR/services.log"
MAX_LOG_SIZE=10485760 # 10MB
# --- Logging functions ---
_log() {
local level_color=$1
local level_name=$2
shift 2
echo -e "${level_color}[${level_name}]${NC} $(date '+%Y-%m-%d %H:%M:%S') - $@"
}
log_info() { _log "$BLUE" "INFO" "$@"; }
log_success() { _log "$GREEN" "SUCCESS" "$@"; }
log_warning() { _log "$YELLOW" "WARNING" "$@"; }
log_error() { _log "$RED" "ERROR" "$@"; }
# --- Setup logging ---
setup_logging() {
mkdir -p "$LOG_DIR"
touch "$LOG_FILE"
log_info "Logging to console and $LOG_FILE"
exec > >(tee -a "$LOG_FILE") 2> >(tee -a "$LOG_FILE" >&2)
}
# --- Render configuration files ---
render_config() {
log_info "Rendering configuration templates..."
local rendered=0
if envsubst < /etc/container/templates/sshd_config.template > /etc/ssh/sshd_config; then
log_success "SSHD configuration rendered"; ((rendered++))
else
log_error "Failed to render SSHD configuration";
fi
if envsubst < /etc/container/templates/nginx.conf.template > /etc/nginx/nginx.conf; then
log_success "Nginx configuration rendered"; ((rendered++))
else
log_error "Failed to render Nginx configuration";
fi
if [ "$rendered" -eq 2 ]; then
log_success "All configuration files rendered"
return 0
else
log_error "Failed to render some configuration files"
return 1
fi
}
# --- Start services ---
start_services() {
log_info "Starting SSH service..."
if [ ! -f "/etc/ssh/ssh_host_rsa_key" ]; then
log_info "Generating SSH host keys..."
ssh-keygen -A
fi
/usr/sbin/sshd -D &
SSH_PID=$!
log_info "Starting Nginx service..."
nginx -g "daemon off;" &
NGINX_PID=$!
sleep 2
if kill -0 $SSH_PID 2>/dev/null && kill -0 $NGINX_PID 2>/dev/null; then
log_success "All services started successfully"
return 0
else
log_error "Failed to start some services"
return 1
fi
}
# --- Monitor services ---
monitor_services() {
log_info "Starting service monitoring..."
while true; do
sleep 30
if ! kill -0 $SSH_PID 2>/dev/null; then
log_error "SSH service stopped, attempting restart..."
/usr/sbin/sshd -D &
SSH_PID=$!
fi
if ! kill -0 $NGINX_PID 2>/dev/null; then
log_error "Nginx service stopped, attempting restart..."
nginx -g "daemon off;" &
NGINX_PID=$!
fi
done
}
# --- Cleanup function ---
cleanup() {
log_info "Received shutdown signal, gracefully stopping services..."
if [ ! -z "$NGINX_PID" ] && kill -0 $NGINX_PID 2>/dev/null; then
log_info "Stopping Nginx (PID:$NGINX_PID)"
kill -TERM $NGINX_PID
wait $NGINX_PID 2>/dev/null
log_success "Nginx stopped"
fi
if [ ! -z "$SSH_PID" ] && kill -0 $SSH_PID 2>/dev/null; then
log_info "Stopping SSH (PID:$SSH_PID)"
kill -TERM $SSH_PID
wait $SSH_PID 2>/dev/null
log_success "SSH stopped"
fi
log_info "Container shutdown complete"
exit 0
}
trap cleanup SIGTERM SIGINT
# --- Main execution ---
main() {
setup_logging
log_info "===== Container Starting ====="
log_info "Time: $(date)"
log_info "Timezone: $TZ"
log_info "User: $(whoami)"
if ! render_config; then
log_error "Configuration rendering failed"
exit 1
fi
if ! /usr/sbin/sshd -t; then
log_error "SSH configuration test failed"
exit 1
fi
if ! nginx -t; then
log_error "Nginx configuration test failed"
exit 1
fi
if ! start_services; then
exit 1
fi
log_success "===== All services started successfully ====="
monitor_services
}
main
EOF
RUN chmod +x /app/start.sh
# ---- Stage 2: Production ----
# This stage builds the final runtime image with only necessary dependencies
FROM ubuntu:22.04 AS production
ENV DEBIAN_FRONTEND=noninteractive
ENV TZ=Asia/Shanghai
ENV PUID=1000
ENV PGID=1000
ENV LANG=zh_CN.UTF-8
# Copy timezone and locale settings from builder
COPY --from=builder /etc/localtime /etc/localtime
COPY --from=builder /etc/timezone /etc/timezone
COPY --from=builder /usr/lib/locale/zh_CN.utf8 /usr/lib/locale/zh_CN.utf8/
COPY --from=builder /etc/default/locale /etc/default/locale
# Install only runtime dependencies
RUN apt-get update && \
apt-get install -y --no-install-recommends \
openssh-server \
git \
nginx-full \
gettext-base \
curl && \
rm -rf /var/lib/apt/lists/*
# Create hexo user
RUN groupadd -r hexo && \
useradd -r -g hexo -d /home/hexo -s /bin/bash hexo
# Create necessary directories
RUN mkdir -p /root/.ssh && \
mkdir -p /home/www/hexo && \
mkdir -p /home/www/ssl && \
mkdir -p /var/run/sshd && \
mkdir -p /var/log/container && \
mkdir -p /var/log/nginx && \
mkdir -p /home/hexo/.ssh
# Copy artifacts from builder stage
COPY --from=builder /root/hexo.git /root/hexo.git
COPY --from=builder /etc/container/templates /etc/container/templates/
COPY --from=builder /app/start.sh /root/start.sh
COPY --from=builder /etc/nginx/nginx.conf.bak /etc/nginx/nginx.conf.bak
# Set proper permissions
RUN chmod +x /root/start.sh && \
chmod +x /root/hexo.git/hooks/post-receive && \
chown -R hexo:hexo /home/www/hexo && \
chown -R hexo:hexo /home/hexo && \
chmod -R 755 /home/www/hexo && \
chmod 700 /root/.ssh && \
chmod 700 /home/hexo/.ssh
# Health check
HEALTHCHECK --interval=30s --timeout=3s --start-period=5s --retries=3 \
CMD curl -f http://localhost/ || exit 1
VOLUME ["/home/www/hexo", "/root/.ssh", "/home/www/ssl", "/root/hexo.git", "/var/log/container", "/var/log/nginx"]
EXPOSE 22 80 443
CMD ["/root/start.sh"]

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# ---- Stage 1: Builder/Base ----
# This stage sets up the base environment, installs build tools, creates scripts and templates
FROM ubuntu:22.04 AS builder
ENV DEBIAN_FRONTEND=noninteractive
ENV TZ=Asia/Shanghai
# Set the timezone
RUN ln -sf /usr/share/zoneinfo/$TZ /etc/localtime && \
echo $TZ > /etc/timezone
# Install all required packages in a single layer
RUN apt-get update && \
apt-get install -y --no-install-recommends \
locales \
git \
nginx-full \
gettext-base && \
sed -i 's/# zh_CN.UTF-8 UTF-8/zh_CN.UTF-8 UTF-8/' /etc/locale.gen && \
locale-gen && \
update-locale LANG=zh_CN.UTF-8 && \
rm -rf /var/lib/apt/lists/*
# Create non-root user for security
RUN groupadd -r hexo && useradd -r -g hexo -d /home/hexo -s /bin/bash hexo
# Make essential directories for artifacts
RUN mkdir -p /root/hexo.git/hooks && \
mkdir -p /etc/container/templates && \
mkdir -p /app && \
mkdir -p /home/hexo
# Configure git hook with proper permissions
RUN git init --bare /home/hexo/hexo.git && \
echo "#!/bin/bash" > /home/hexo/hexo.git/hooks/post-receive && \
echo "git --work-tree=/home/www/hexo --git-dir=/home/hexo/hexo.git checkout -f" >> /home/hexo/hexo.git/hooks/post-receive && \
echo "chown -R hexo:hexo /home/www/hexo" >> /home/hexo/hexo.git/hooks/post-receive && \
chmod +x /home/hexo/hexo.git/hooks/post-receive && \
chown -R hexo:hexo /home/hexo/hexo.git
# Backup original nginx.conf
RUN cp /etc/nginx/nginx.conf /etc/nginx/nginx.conf.bak
# Create improved SSH Config Template
RUN echo 'Port ${SSH_PORT:-22}' > /etc/container/templates/sshd_config.template && \
echo 'ListenAddress 0.0.0.0' >> /etc/container/templates/sshd_config.template && \
echo 'ListenAddress ::' >> /etc/container/templates/sshd_config.template && \
echo 'PermitRootLogin ${PERMIT_ROOT_LOGIN:-no}' >> /etc/container/templates/sshd_config.template && \
echo 'PubkeyAuthentication yes' >> /etc/container/templates/sshd_config.template && \
echo 'AuthorizedKeysFile .ssh/authorized_keys' >> /etc/container/templates/sshd_config.template && \
echo 'PasswordAuthentication no' >> /etc/container/templates/sshd_config.template && \
echo 'ChallengeResponseAuthentication no' >> /etc/container/templates/sshd_config.template && \
echo 'UsePAM yes' >> /etc/container/templates/sshd_config.template && \
echo 'X11Forwarding no' >> /etc/container/templates/sshd_config.template && \
echo 'PrintMotd no' >> /etc/container/templates/sshd_config.template && \
echo 'AcceptEnv LANG LC_*' >> /etc/container/templates/sshd_config.template && \
echo 'Subsystem sftp /usr/lib/openssh/sftp-server' >> /etc/container/templates/sshd_config.template && \
echo 'AllowUsers hexo' >> /etc/container/templates/sshd_config.template
# Create Nginx Config Template with security headers
RUN cat > /etc/container/templates/nginx.conf.template << 'EOF'
# Nginx Configuration Template
user ${NGINX_USER:-hexo};
worker_processes ${NGINX_WORKERS:-auto};
pid /var/run/nginx.pid;
events {
worker_connections ${NGINX_CONNECTIONS:-1024};
use epoll;
multi_accept on;
}
http {
include /etc/nginx/mime.types;
default_type application/octet-stream;
# Logging
access_log /var/log/nginx/access.log;
error_log /var/log/nginx/error.log;
# Performance
sendfile on;
tcp_nopush on;
tcp_nodelay on;
keepalive_timeout 65;
types_hash_max_size 2048;
# Security headers
add_header X-Frame-Options DENY;
add_header X-Content-Type-Options nosniff;
add_header X-XSS-Protection "1; mode=block";
# Gzip compression
gzip on;
gzip_vary on;
gzip_proxied any;
gzip_comp_level 6;
gzip_types text/plain text/css application/json application/javascript text/xml application/xml application/xml+rss text/javascript;
server {
listen ${HTTP_PORT:-80};
server_name ${SERVER_NAME:-localhost};
root ${WEB_ROOT:-/home/www/hexo};
index index.html index.htm;
# Security
server_tokens off;
location / {
try_files $uri $uri/ =404;
}
# Static files caching
location ~* \.(jpg|jpeg|png|gif|ico|css|js)$ {
expires 1y;
add_header Cache-Control "public, immutable";
}
}
}
EOF
# Create improved start script
RUN cat > /app/start.sh << 'EOF'
#!/bin/bash
# Color definitions
RED='\033[0;31m'
GREEN='\033[0;32m'
YELLOW='\033[1;33m'
BLUE='\033[0;34m'
NC='\033[0m' # No Color
# Log file and rotation settings
LOG_DIR="/var/log/container"
LOG_FILE="$LOG_DIR/services.log"
MAX_LOG_SIZE=10485760 # 10MB
# --- Logging functions ---
_log() {
local level_color=$1
local level_name=$2
shift 2
echo -e "${level_color}[${level_name}]${NC} $(date '+%Y-%m-%d %H:%M:%S') - $@"
}
log_info() { _log "$BLUE" "INFO" "$@"; }
log_success() { _log "$GREEN" "SUCCESS" "$@"; }
log_warning() { _log "$YELLOW" "WARNING" "$@"; }
log_error() { _log "$RED" "ERROR" "$@"; }
# --- Setup logging ---
setup_logging() {
mkdir -p "$LOG_DIR"
touch "$LOG_FILE"
log_info "Logging to console and $LOG_FILE"
exec > >(tee -a "$LOG_FILE") 2> >(tee -a "$LOG_FILE" >&2)
}
# --- Render configuration files ---
render_config() {
log_info "Rendering configuration templates..."
local rendered=0
if envsubst < /etc/container/templates/sshd_config.template > /etc/ssh/sshd_config; then
log_success "SSHD configuration rendered"; ((rendered++))
else
log_error "Failed to render SSHD configuration";
fi
if envsubst < /etc/container/templates/nginx.conf.template > /etc/nginx/nginx.conf; then
log_success "Nginx configuration rendered"; ((rendered++))
else
log_error "Failed to render Nginx configuration";
fi
if [ "$rendered" -eq 2 ]; then
log_success "All configuration files rendered"
return 0
else
log_error "Failed to render some configuration files"
return 1
fi
}
# --- Start services ---
start_services() {
log_info "Starting SSH service..."
if [ ! -f "/etc/ssh/ssh_host_rsa_key" ]; then
log_info "Generating SSH host keys..."
ssh-keygen -A
fi
/usr/sbin/sshd -D &
SSH_PID=$!
log_info "Starting Nginx service..."
nginx -g "daemon off;" &
NGINX_PID=$!
sleep 2
if kill -0 $SSH_PID 2>/dev/null && kill -0 $NGINX_PID 2>/dev/null; then
log_success "All services started successfully"
return 0
else
log_error "Failed to start some services"
return 1
fi
}
# --- Monitor services ---
monitor_services() {
log_info "Starting service monitoring..."
while true; do
sleep 30
if ! kill -0 $SSH_PID 2>/dev/null; then
log_error "SSH service stopped, attempting restart..."
/usr/sbin/sshd -D &
SSH_PID=$!
fi
if ! kill -0 $NGINX_PID 2>/dev/null; then
log_error "Nginx service stopped, attempting restart..."
nginx -g "daemon off;" &
NGINX_PID=$!
fi
done
}
# --- Cleanup function ---
cleanup() {
log_info "Received shutdown signal, gracefully stopping services..."
if [ ! -z "$NGINX_PID" ] && kill -0 $NGINX_PID 2>/dev/null; then
log_info "Stopping Nginx (PID:$NGINX_PID)"
kill -TERM $NGINX_PID
wait $NGINX_PID 2>/dev/null
log_success "Nginx stopped"
fi
if [ ! -z "$SSH_PID" ] && kill -0 $SSH_PID 2>/dev/null; then
log_info "Stopping SSH (PID:$SSH_PID)"
kill -TERM $SSH_PID
wait $SSH_PID 2>/dev/null
log_success "SSH stopped"
fi
log_info "Container shutdown complete"
exit 0
}
trap cleanup SIGTERM SIGINT
# --- Main execution ---
main() {
setup_logging
log_info "===== Container Starting ====="
log_info "Time: $(date)"
log_info "Timezone: $TZ"
log_info "User: $(whoami)"
if ! render_config; then
log_error "Configuration rendering failed"
exit 1
fi
if ! /usr/sbin/sshd -t; then
log_error "SSH configuration test failed"
exit 1
fi
if ! nginx -t; then
log_error "Nginx configuration test failed"
exit 1
fi
if ! start_services; then
exit 1
fi
log_success "===== All services started successfully ====="
monitor_services
}
main
EOF
RUN chmod +x /app/start.sh
# ---- Stage 2: Production ----
# This stage builds the final runtime image with only necessary dependencies
FROM ubuntu:22.04 AS production
ENV DEBIAN_FRONTEND=noninteractive
ENV TZ=Asia/Shanghai
ENV PUID=1000
ENV PGID=1000
ENV LANG=zh_CN.UTF-8
# Copy timezone and locale settings from builder
COPY --from=builder /etc/localtime /etc/localtime
COPY --from=builder /etc/timezone /etc/timezone
COPY --from=builder /usr/lib/locale/zh_CN.utf8 /usr/lib/locale/zh_CN.utf8/
COPY --from=builder /etc/default/locale /etc/default/locale
# Install only runtime dependencies
RUN apt-get update && \
apt-get install -y --no-install-recommends \
openssh-server \
git \
nginx-full \
gettext-base \
curl && \
rm -rf /var/lib/apt/lists/*
# Create hexo user
RUN groupadd -r hexo && \
useradd -r -g hexo -d /home/hexo -s /bin/bash hexo
# Create necessary directories
RUN mkdir -p /home/hexo/.ssh && \
mkdir -p /home/www/hexo && \
mkdir -p /home/www/ssl && \
mkdir -p /var/run/sshd && \
mkdir -p /var/log/container && \
mkdir -p /var/log/nginx
# Copy artifacts from builder stage
COPY --from=builder /home/hexo/hexo.git /home/hexo/hexo.git
COPY --from=builder /etc/container/templates /etc/container/templates/
COPY --from=builder /app/start.sh /root/start.sh
COPY --from=builder /etc/nginx/nginx.conf.bak /etc/nginx/nginx.conf.bak
# Set proper permissions
RUN chmod +x /root/start.sh && \
chmod +x /home/hexo/hexo.git/hooks/post-receive && \
chown -R hexo:hexo /home/www/hexo && \
chown -R hexo:hexo /home/hexo && \
chmod -R 755 /home/www/hexo && \
chmod 700 /home/hexo/.ssh
# Health check
HEALTHCHECK --interval=30s --timeout=3s --start-period=5s --retries=3 \
CMD curl -f http://localhost/ || exit 1
VOLUME ["/home/www/hexo", "/home/hexo/.ssh", "/home/www/ssl", "/home/hexo/hexo.git", "/var/log/container", "/var/log/nginx"]
EXPOSE 22 80 443
CMD ["/root/start.sh"]

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# ========== Multi-Stage Dockerfile for Hexo Blog Service ==========
# This Dockerfile creates a secure, production-ready container for running
# a Hexo blog with Nginx web server and SSH Git deployment capabilities.
# Features: Non-root execution, environment-based user ID mapping, comprehensive logging
# ---- Stage 1: Builder/Base ----
# Sets up templates, configurations, and scripts
FROM ubuntu:22.04 AS builder
ENV DEBIAN_FRONTEND=noninteractive
ENV TZ=Asia/Shanghai
# Install build dependencies and configure locale
RUN apt-get update && \
apt-get install -y --no-install-recommends \
locales \
git \
nginx-full \
gettext-base && \
# Configure Chinese locale
sed -i 's/# zh_CN.UTF-8 UTF-8/zh_CN.UTF-8 UTF-8/' /etc/locale.gen && \
locale-gen && \
update-locale LANG=zh_CN.UTF-8 && \
# Set timezone
ln -sf /usr/share/zoneinfo/$TZ /etc/localtime && \
echo $TZ > /etc/timezone && \
# Clean up
rm -rf /var/lib/apt/lists/*
# Create template directories
RUN mkdir -p /etc/container/templates && \
mkdir -p /app
# ========== IMPROVEMENT 1: Use Heredoc for Better Readability ==========
# Create enhanced SSH configuration template with heredoc
RUN cat << 'EOF' > /etc/container/templates/sshd_config.template
# SSH Server Configuration Template
# This template supports environment variable substitution
Port ${SSH_PORT:-22}
ListenAddress 0.0.0.0
ListenAddress ::
# Authentication settings
PermitRootLogin ${PERMIT_ROOT_LOGIN:-no}
PubkeyAuthentication yes
AuthorizedKeysFile .ssh/authorized_keys
PasswordAuthentication no
ChallengeResponseAuthentication no
UsePAM yes
# Security settings
AllowUsers ${SSH_USER:-hexo}
X11Forwarding no
PrintMotd no
MaxAuthTries ${MAX_AUTH_TRIES:-3}
ClientAliveInterval ${CLIENT_ALIVE_INTERVAL:-300}
ClientAliveCountMax ${CLIENT_ALIVE_COUNT_MAX:-3}
# Logging
SyslogFacility AUTH
LogLevel ${SSH_LOG_LEVEL:-INFO}
# Subsystems
Subsystem sftp /usr/lib/openssh/sftp-server
# Environment
AcceptEnv LANG LC_*
EOF
# Create Nginx configuration template with heredoc
RUN cat << 'EOF' > /etc/container/templates/nginx.conf.template
# Nginx Configuration Template
# Optimized for security and performance
user ${NGINX_USER:-hexo};
worker_processes ${NGINX_WORKERS:-auto};
pid /var/run/nginx.pid;
# Error logging
error_log /var/log/nginx/error.log ${NGINX_LOG_LEVEL:-warn};
events {
worker_connections ${NGINX_CONNECTIONS:-1024};
use epoll;
multi_accept on;
}
http {
# Basic settings
include /etc/nginx/mime.types;
default_type application/octet-stream;
# Logging
log_format main '$remote_addr - $remote_user [$time_local] "$request" '
'$status $body_bytes_sent "$http_referer" '
'"$http_user_agent" "$http_x_forwarded_for"';
access_log /var/log/nginx/access.log main;
# Performance settings
sendfile on;
tcp_nopush on;
tcp_nodelay on;
keepalive_timeout 65;
types_hash_max_size 2048;
client_max_body_size ${MAX_UPLOAD_SIZE:-16m};
# Security headers
add_header X-Frame-Options DENY always;
add_header X-Content-Type-Options nosniff always;
add_header X-XSS-Protection "1; mode=block" always;
add_header Referrer-Policy "strict-origin-when-cross-origin" always;
add_header Permissions-Policy "geolocation=(), microphone=(), camera=()" always;
# Compression
gzip on;
gzip_vary on;
gzip_proxied any;
gzip_comp_level 6;
gzip_min_length 1000;
gzip_types
text/plain
text/css
application/json
application/javascript
text/xml
application/xml
application/xml+rss
text/javascript
application/atom+xml
image/svg+xml;
# Rate limiting
limit_req_zone $binary_remote_addr zone=general:10m rate=${RATE_LIMIT:-10r/s};
server {
listen ${HTTP_PORT:-80};
server_name ${SERVER_NAME:-localhost};
root ${WEB_ROOT:-/home/www/hexo};
index index.html index.htm;
# Security settings
server_tokens off;
# Rate limiting
limit_req zone=general burst=${RATE_BURST:-20} nodelay;
# Main location
location / {
try_files $uri $uri/ =404;
}
# Static assets with caching
location ~* \.(jpg|jpeg|png|gif|ico|css|js|woff|woff2|ttf|eot|svg)$ {
expires 1y;
add_header Cache-Control "public, immutable";
add_header Vary Accept-Encoding;
}
# Security: Deny access to hidden files
location ~ /\. {
deny all;
}
# Security: Deny access to sensitive files
location ~* \.(bak|config|sql|fla|psd|ini|log|sh|inc|swp|dist)$ {
deny all;
}
}
}
EOF
# ========== IMPROVEMENT 2: Enhanced Start Script with Log Rotation ==========
# Create comprehensive start script with heredoc for better maintainability
RUN cat << 'EOF' > /app/start.sh
#!/bin/bash
# Color codes for logging
readonly RED='\033[0;31m'
readonly GREEN='\033[0;32m'
readonly YELLOW='\033[1;33m'
readonly BLUE='\033[0;34m'
readonly PURPLE='\033[0;35m'
readonly NC='\033[0m'
# Logging configuration
readonly LOG_DIR="/var/log/container"
readonly LOG_FILE="$LOG_DIR/services.log"
readonly MAX_LOG_SIZE=${MAX_LOG_SIZE:-10485760} # 10MB default
readonly MAX_LOG_FILES=${MAX_LOG_FILES:-5}
# Logging functions
_log() {
local level_color=$1
local level_name=$2
shift 2
echo -e "${level_color}[${level_name}]${NC} $(date '+%Y-%m-%d %H:%M:%S') - $*"
}
log_info() { _log "$BLUE" "INFO" "$@"; }
log_success() { _log "$GREEN" "SUCCESS" "$@"; }
log_warning() { _log "$YELLOW" "WARNING" "$@"; }
log_error() { _log "$RED" "ERROR" "$@"; }
log_debug() { _log "$PURPLE" "DEBUG" "$@"; }
# ========== LOG ROTATION IMPLEMENTATION ==========
rotate_logs() {
if [[ -f "$LOG_FILE" && $(stat -c%s "$LOG_FILE" 2>/dev/null || echo 0) -gt $MAX_LOG_SIZE ]]; then
log_info "Rotating log file (size: $(du -h "$LOG_FILE" 2>/dev/null | cut -f1))"
# Rotate existing logs
for i in $(seq $((MAX_LOG_FILES-1)) -1 1); do
if [[ -f "${LOG_FILE}.$i" ]]; then
mv "${LOG_FILE}.$i" "${LOG_FILE}.$((i+1))"
fi
done
# Move current log to .1
mv "$LOG_FILE" "${LOG_FILE}.1"
touch "$LOG_FILE"
log_success "Log rotation completed"
fi
}
setup_logging() {
mkdir -p "$LOG_DIR"
touch "$LOG_FILE"
# Rotate logs if needed
rotate_logs
log_info "Logging to console and $LOG_FILE"
log_info "Log rotation: enabled (max size: ${MAX_LOG_SIZE} bytes, max files: ${MAX_LOG_FILES})"
# Redirect all output to log file while keeping console output
exec > >(tee -a "$LOG_FILE") 2> >(tee -a "$LOG_FILE" >&2)
}
# ========== USER MANAGEMENT WITH PUID/PGID SUPPORT ==========
setup_user() {
local target_uid=${PUID:-1000}
local target_gid=${PGID:-1000}
log_info "Setting up user with UID:$target_uid, GID:$target_gid"
# Create group with specified GID
if ! getent group hexo >/dev/null 2>&1; then
if getent group "$target_gid" >/dev/null 2>&1; then
log_warning "GID $target_gid already exists, using existing group"
existing_group=$(getent group "$target_gid" | cut -d: -f1)
log_info "Using existing group: $existing_group"
else
groupadd -g "$target_gid" hexo
log_success "Created group 'hexo' with GID $target_gid"
fi
fi
# Create user with specified UID
if ! getent passwd hexo >/dev/null 2>&1; then
if getent passwd "$target_uid" >/dev/null 2>&1; then
log_error "UID $target_uid already exists"
return 1
else
useradd -u "$target_uid" -g "$target_gid" -d /home/hexo -s /bin/bash hexo
log_success "Created user 'hexo' with UID $target_uid"
fi
else
# User exists, check if UID needs updating
current_uid=$(id -u hexo)
if [[ "$current_uid" != "$target_uid" ]]; then
log_info "Updating hexo user UID from $current_uid to $target_uid"
usermod -u "$target_uid" hexo
fi
fi
# Ensure home directory exists and has correct ownership
mkdir -p /home/hexo/.ssh
mkdir -p /home/www/hexo
chown -R hexo:hexo /home/hexo /home/www/hexo
chmod 700 /home/hexo/.ssh
log_success "User setup completed"
}
render_config() {
log_info "Rendering configuration templates..."
local rendered=0
# Render SSH configuration
if envsubst < /etc/container/templates/sshd_config.template > /etc/ssh/sshd_config; then
log_success "SSH configuration rendered"
((rendered++))
else
log_error "Failed to render SSH configuration"
return 1
fi
# Render Nginx configuration
if envsubst < /etc/container/templates/nginx.conf.template > /etc/nginx/nginx.conf; then
log_success "Nginx configuration rendered"
((rendered++))
else
log_error "Failed to render Nginx configuration"
return 1
fi
log_success "All $rendered configuration files rendered successfully"
return 0
}
validate_configs() {
log_info "Validating configurations..."
# Validate SSH configuration
if /usr/sbin/sshd -t; then
log_success "SSH configuration is valid"
else
log_error "SSH configuration validation failed"
return 1
fi
# Validate Nginx configuration
if nginx -t; then
log_success "Nginx configuration is valid"
else
log_error "Nginx configuration validation failed"
return 1
fi
return 0
}
start_services() {
log_info "Starting services..."
# Generate SSH host keys if they don't exist
if [[ ! -f "/etc/ssh/ssh_host_rsa_key" ]]; then
log_info "Generating SSH host keys..."
ssh-keygen -A
log_success "SSH host keys generated"
fi
# Start SSH service
log_info "Starting SSH service..."
/usr/sbin/sshd -D &
SSH_PID=$!
# Start Nginx service
log_info "Starting Nginx service..."
nginx -g "daemon off;" &
NGINX_PID=$!
# Wait for services to start
sleep 3
# Verify services are running
local services_ok=true
if ! kill -0 $SSH_PID 2>/dev/null; then
log_error "SSH service failed to start"
services_ok=false
else
log_success "SSH service started (PID:$SSH_PID)"
fi
if ! kill -0 $NGINX_PID 2>/dev/null; then
log_error "Nginx service failed to start"
services_ok=false
else
log_success "Nginx service started (PID:$NGINX_PID)"
fi
if $services_ok; then
log_success "All services started successfully"
return 0
else
log_error "Some services failed to start"
return 1
fi
}
monitor_services() {
log_info "Starting service monitoring and log rotation..."
while true; do
sleep 30
# Rotate logs if needed
rotate_logs
# Monitor SSH service
if ! kill -0 $SSH_PID 2>/dev/null; then
log_warning "SSH service stopped, attempting restart..."
/usr/sbin/sshd -D &
SSH_PID=$!
if kill -0 $SSH_PID 2>/dev/null; then
log_success "SSH service restarted (PID:$SSH_PID)"
else
log_error "Failed to restart SSH service"
fi
fi
# Monitor Nginx service
if ! kill -0 $NGINX_PID 2>/dev/null; then
log_warning "Nginx service stopped, attempting restart..."
nginx -g "daemon off;" &
NGINX_PID=$!
if kill -0 $NGINX_PID 2>/dev/null; then
log_success "Nginx service restarted (PID:$NGINX_PID)"
else
log_error "Failed to restart Nginx service"
fi
fi
done
}
cleanup() {
log_info "Received shutdown signal, gracefully stopping services..."
# Stop Nginx
if [[ -n "$NGINX_PID" ]] && kill -0 $NGINX_PID 2>/dev/null; then
log_info "Stopping Nginx (PID:$NGINX_PID)"
kill -TERM $NGINX_PID
wait $NGINX_PID 2>/dev/null
log_success "Nginx stopped gracefully"
fi
# Stop SSH
if [[ -n "$SSH_PID" ]] && kill -0 $SSH_PID 2>/dev/null; then
log_info "Stopping SSH (PID:$SSH_PID)"
kill -TERM $SSH_PID
wait $SSH_PID 2>/dev/null
log_success "SSH stopped gracefully"
fi
log_info "Container shutdown complete"
exit 0
}
# Signal handlers
trap cleanup SIGTERM SIGINT
# Main execution function
main() {
setup_logging
log_info "========== Container Starting =========="
log_info "Timestamp: $(date)"
log_info "Timezone: ${TZ:-UTC}"
log_info "PUID: ${PUID:-1000}, PGID: ${PGID:-1000}"
log_info "Current user: $(whoami)"
# Setup user with PUID/PGID support
if ! setup_user; then
log_error "User setup failed"
exit 1
fi
# Render configuration templates
if ! render_config; then
log_error "Configuration rendering failed"
exit 1
fi
# Validate configurations
if ! validate_configs; then
log_error "Configuration validation failed"
exit 1
fi
# Start services
if ! start_services; then
log_error "Service startup failed"
exit 1
fi
log_success "========== All services started successfully =========="
log_info "Container is ready to serve requests"
# Start monitoring loop
monitor_services
}
# Execute main function
main "$@"
EOF
chmod +x /app/start.sh
# Create Git repository with enhanced security
RUN git init --bare /home/hexo/hexo.git
# ========== IMPROVEMENT 3: Enhanced Post-Receive Hook Security ==========
RUN cat << 'EOF' > /home/hexo/hexo.git/hooks/post-receive
#!/bin/bash
# Enhanced Git post-receive hook with security checks
# This hook deploys the website content after a git push
LOG_FILE="/var/log/container/git-deploy.log"
WORK_TREE="/home/www/hexo"
GIT_DIR="/home/hexo/hexo.git"
# Logging function
log() {
echo "[$(date '+%Y-%m-%d %H:%M:%S')] $*" | tee -a "$LOG_FILE"
}
# Security: Validate that we're running as the correct user
if [[ "$(whoami)" != "hexo" ]]; then
log "ERROR: Post-receive hook must run as 'hexo' user, currently: $(whoami)"
exit 1
fi
# Security: Validate paths
if [[ ! -d "$WORK_TREE" ]]; then
log "ERROR: Work tree directory does not exist: $WORK_TREE"
exit 1
fi
if [[ ! -d "$GIT_DIR" ]]; then
log "ERROR: Git directory does not exist: $GIT_DIR"
exit 1
fi
log "Starting deployment..."
log "Work tree: $WORK_TREE"
log "Git directory: $GIT_DIR"
# Perform the checkout
if git --work-tree="$WORK_TREE" --git-dir="$GIT_DIR" checkout -f; then
log "SUCCESS: Code deployed successfully"
# Ensure correct permissions
if chown -R hexo:hexo "$WORK_TREE"; then
log "SUCCESS: Permissions updated"
else
log "WARNING: Failed to update permissions"
fi
# Optional: Reload Nginx if configuration changed
if [[ -f "$WORK_TREE/nginx.conf" ]]; then
log "INFO: Custom Nginx configuration detected, consider reloading"
fi
log "Deployment completed successfully"
else
log "ERROR: Deployment failed"
exit 1
fi
EOF
chmod +x /home/hexo/hexo.git/hooks/post-receive
# ---- Stage 2: Production ----
# ========== IMPROVEMENT 4: Remove Unnecessary Packages ==========
FROM ubuntu:22.04 AS production
ENV DEBIAN_FRONTEND=noninteractive
ENV TZ=Asia/Shanghai
ENV PUID=1000
ENV PGID=1000
ENV LANG=zh_CN.UTF-8
# Copy timezone and locale configuration
COPY --from=builder /etc/localtime /etc/localtime
COPY --from=builder /etc/timezone /etc/timezone
# Install ONLY runtime dependencies (removed vim, nodejs, npm)
RUN apt-get update && \
apt-get install -y --no-install-recommends \
openssh-server \
git \
nginx-light \
gettext-base \
curl \
ca-certificates \
locales && \
# Configure locale
locale-gen zh_CN.UTF-8 && \
update-locale LANG=zh_CN.UTF-8 && \
# Create necessary directories
mkdir -p /var/run/sshd && \
mkdir -p /var/log/container && \
mkdir -p /var/log/nginx && \
mkdir -p /home/hexo/.ssh && \
mkdir -p /home/www/hexo && \
mkdir -p /home/www/ssl && \
# Clean up
rm -rf /var/lib/apt/lists/* && \
rm -rf /tmp/* && \
rm -rf /var/tmp/*
# Copy artifacts from builder stage
COPY --from=builder /etc/container/templates/ /etc/container/templates/
COPY --from=builder /app/start.sh /app/start.sh
COPY --from=builder /home/hexo/hexo.git/ /home/hexo/hexo.git/
# Set executable permissions
RUN chmod +x /app/start.sh && \
chmod +x /home/hexo/hexo.git/hooks/post-receive
# Health check with better error handling
HEALTHCHECK --interval=30s --timeout=10s --start-period=30s --retries=3 \
CMD curl -f -s -o /dev/null http://localhost:${HTTP_PORT:-80}/ || exit 1
# Document exposed ports
EXPOSE 22 80 443
# Define volumes for persistent data
VOLUME ["/home/www/hexo", "/home/hexo/.ssh", "/home/www/ssl", "/home/hexo/hexo.git", "/var/log/container", "/var/log/nginx"]
# Use the enhanced start script
CMD ["/app/start.sh"]

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@@ -0,0 +1,334 @@
# ---- Stage 1: Builder/Base ----
# This stage sets up the base environment, installs build tools, creates scripts and templates
FROM ubuntu:22.04 AS builder
ENV DEBIAN_FRONTEND=noninteractive
ENV TZ=Asia/Shanghai
# Set the timezone
RUN ln -sf /usr/share/zoneinfo/$TZ /etc/localtime && \
echo $TZ > /etc/timezone
# Install all required packages in a single layer
RUN apt-get update && \
apt-get install -y --no-install-recommends \
locales \
git \
nginx-full \
gettext-base && \
sed -i 's/# zh_CN.UTF-8 UTF-8/zh_CN.UTF-8 UTF-8/' /etc/locale.gen && \
locale-gen && \
update-locale LANG=zh_CN.UTF-8 && \
rm -rf /var/lib/apt/lists/*
# Create non-root user for security
RUN groupadd -r hexo && useradd -r -g hexo -d /home/hexo -s /bin/bash hexo
# Make essential directories for artifacts
RUN mkdir -p /etc/container/templates && \
mkdir -p /app && \
mkdir -p /home/hexo
# Configure git hook with proper permissions
RUN git init --bare /home/hexo/hexo.git && \
echo "#!/bin/bash" > /home/hexo/hexo.git/hooks/post-receive && \
echo "git --work-tree=/home/www/hexo --git-dir=/home/hexo/hexo.git checkout -f" >> /home/hexo/hexo.git/hooks/post-receive && \
echo "chown -R hexo:hexo /home/www/hexo" >> /home/hexo/hexo.git/hooks/post-receive && \
chmod +x /home/hexo/hexo.git/hooks/post-receive && \
chown -R hexo:hexo /home/hexo/hexo.git
# Backup original nginx.conf
RUN cp /etc/nginx/nginx.conf /etc/nginx/nginx.conf.bak
# Create improved SSH Config Template
RUN cat > /etc/container/templates/sshd_config.template << 'EOF'
Port ${SSH_PORT:-22}
ListenAddress 0.0.0.0
ListenAddress ::
PermitRootLogin ${PERMIT_ROOT_LOGIN:-no}
PubkeyAuthentication yes
AuthorizedKeysFile .ssh/authorized_keys
PasswordAuthentication no
ChallengeResponseAuthentication no
UsePAM yes
X11Forwarding no
PrintMotd no
AcceptEnv LANG LC_*
Subsystem sftp /usr/lib/openssh/sftp-server
AllowUsers hexo
EOF
# Create Nginx Config Template with security headers
RUN cat > /etc/container/templates/nginx.conf.template << 'EOF'
user ${NGINX_USER:-hexo};
worker_processes ${NGINX_WORKERS:-auto};
pid /var/run/nginx.pid;
events {
worker_connections ${NGINX_CONNECTIONS:-1024};
use epoll;
multi_accept on;
}
http {
include /etc/nginx/mime.types;
default_type application/octet-stream;
access_log /var/log/nginx/access.log;
error_log /var/log/nginx/error.log;
sendfile on;
tcp_nopush on;
tcp_nodelay on;
keepalive_timeout 65;
types_hash_max_size 2048;
add_header X-Frame-Options DENY;
add_header X-Content-Type-Options nosniff;
add_header X-XSS-Protection "1; mode=block";
gzip on;
gzip_vary on;
gzip_proxied any;
gzip_comp_level 6;
gzip_types text/plain text/css application/json application/javascript text/xml application/xml application/xml+rss text/javascript;
server {
listen ${HTTP_PORT:-80};
server_name ${SERVER_NAME:-localhost};
root ${WEB_ROOT:-/home/www/hexo};
index index.html index.htm;
server_tokens off;
location / {
try_files $uri $uri/ =404;
}
location ~* \.(jpg|jpeg|png|gif|ico|css|js)$ {
expires 1y;
add_header Cache-Control "public, immutable";
}
}
}
EOF
# Create improved start script
RUN cat > /app/start.sh << 'EOF'
#!/bin/bash
RED='\033[0;31m'
GREEN='\033[0;32m'
YELLOW='\033[1;33m'
BLUE='\033[0;34m'
NC='\033[0m'
LOG_DIR="/var/log/container"
LOG_FILE="$LOG_DIR/services.log"
MAX_LOG_SIZE=10485760
_log() {
local level_color=$1
local level_name=$2
shift 2
echo -e "${level_color}[${level_name}]${NC} $(date '+%Y-%m-%d %H:%M:%S') - $@"
}
log_info() { _log "$BLUE" "INFO" "$@"; }
log_success() { _log "$GREEN" "SUCCESS" "$@"; }
log_warning() { _log "$YELLOW" "WARNING" "$@"; }
log_error() { _log "$RED" "ERROR" "$@"; }
setup_logging() {
mkdir -p "$LOG_DIR"
touch "$LOG_FILE"
log_info "Logging to console and $LOG_FILE"
exec > >(tee -a "$LOG_FILE") 2> >(tee -a "$LOG_FILE" >&2)
}
render_config() {
log_info "Rendering configuration templates..."
local rendered=0
if envsubst < /etc/container/templates/sshd_config.template > /etc/ssh/sshd_config; then
log_success "SSHD configuration rendered"; ((rendered++))
else
log_error "Failed to render SSHD configuration";
fi
if envsubst < /etc/container/templates/nginx.conf.template > /etc/nginx/nginx.conf; then
log_success "Nginx configuration rendered"; ((rendered++))
else
log_error "Failed to render Nginx configuration";
fi
if [ "$rendered" -eq 2 ]; then
log_success "All configuration files rendered"
return 0
else
log_error "Failed to render some configuration files"
return 1
fi
}
start_services() {
log_info "Starting SSH service..."
if [ ! -f "/etc/ssh/ssh_host_rsa_key" ]; then
log_info "Generating SSH host keys..."
ssh-keygen -A
fi
/usr/sbin/sshd -D &
SSH_PID=$!
log_info "Starting Nginx service..."
nginx -g "daemon off;" &
NGINX_PID=$!
sleep 2
if kill -0 $SSH_PID 2>/dev/null && kill -0 $NGINX_PID 2>/dev/null; then
log_success "All services started successfully"
return 0
else
log_error "Failed to start some services"
return 1
fi
}
monitor_services() {
log_info "Starting service monitoring..."
while true; do
sleep 30
if ! kill -0 $SSH_PID 2>/dev/null; then
log_error "SSH service stopped, attempting restart..."
/usr/sbin/sshd -D &
SSH_PID=$!
fi
if ! kill -0 $NGINX_PID 2>/dev/null; then
log_error "Nginx service stopped, attempting restart..."
nginx -g "daemon off;" &
NGINX_PID=$!
fi
done
}
cleanup() {
log_info "Received shutdown signal, gracefully stopping services..."
if [ ! -z "$NGINX_PID" ] && kill -0 $NGINX_PID 2>/dev/null; then
log_info "Stopping Nginx (PID:$NGINX_PID)"
kill -TERM $NGINX_PID
wait $NGINX_PID 2>/dev/null
log_success "Nginx stopped"
fi
if [ ! -z "$SSH_PID" ] && kill -0 $SSH_PID 2>/dev/null; then
log_info "Stopping SSH (PID:$SSH_PID)"
kill -TERM $SSH_PID
wait $SSH_PID 2>/dev/null
log_success "SSH stopped"
fi
log_info "Container shutdown complete"
exit 0
}
trap cleanup SIGTERM SIGINT
main() {
setup_logging
log_info "===== Container Starting ====="
log_info "Time: $(date)"
log_info "Timezone: $TZ"
log_info "User: $(whoami)"
if ! render_config; then
log_error "Configuration rendering failed"
exit 1
fi
if ! /usr/sbin/sshd -t; then
log_error "SSH configuration test failed"
exit 1
fi
if ! nginx -t; then
log_error "Nginx configuration test failed"
exit 1
fi
if ! start_services; then
exit 1
fi
log_success "===== All services started successfully ====="
monitor_services
}
main
EOF
RUN chmod +x /app/start.sh
# ---- Stage 2: Production ----
# This stage builds the final runtime image with only necessary dependencies
FROM ubuntu:22.04 AS production
ENV DEBIAN_FRONTEND=noninteractive
ENV TZ=Asia/Shanghai
ENV PUID=1000
ENV PGID=1000
ENV LANG=zh_CN.UTF-8
# Copy timezone and locale settings from builder
COPY --from=builder /etc/localtime /etc/localtime
COPY --from=builder /etc/timezone /etc/timezone
COPY --from=builder /usr/lib/locale/zh_CN.utf8 /usr/lib/locale/zh_CN.utf8/
COPY --from=builder /etc/default/locale /etc/default/locale
# Install only runtime dependencies
RUN apt-get update && \
apt-get install -y --no-install-recommends \
openssh-server \
git \
nginx-full \
gettext-base \
curl && \
rm -rf /var/lib/apt/lists/*
# Create hexo user
RUN groupadd -r hexo && \
useradd -r -g hexo -d /home/hexo -s /bin/bash hexo
# Create necessary directories with secure permissions
RUN mkdir -p /home/hexo/.ssh && \
mkdir -p /home/www/hexo && \
mkdir -p /home/www/ssl && \
mkdir -p /var/run/sshd && \
mkdir -p /var/log/container && \
mkdir -p /var/log/nginx
# Copy artifacts from builder stage
COPY --from=builder /home/hexo/hexo.git /home/hexo/hexo.git
COPY --from=builder /etc/container/templates /etc/container/templates/
COPY --from=builder /app/start.sh /root/start.sh
COPY --from=builder /etc/nginx/nginx.conf.bak /etc/nginx/nginx.conf.bak
# Set proper permissions for security
RUN chmod +x /root/start.sh && \
chmod +x /home/hexo/hexo.git/hooks/post-receive && \
chown -R hexo:hexo /home/www/hexo && \
chown -R hexo:hexo /home/hexo && \
chmod -R 755 /home/www/hexo && \
chmod 700 /home/hexo/.ssh
# Health check
HEALTHCHECK --interval=30s --timeout=3s --start-period=5s --retries=3 \
CMD curl -f http://localhost/ || exit 1
VOLUME ["/home/www/hexo", "/home/hexo/.ssh", "/home/www/ssl", "/home/hexo/hexo.git", "/var/log/container", "/var/log/nginx"]
EXPOSE 22 80 443
CMD ["/root/start.sh"]

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# Dockerfile ÓÅ»¯°æ±¾²âÊÔ
FROM ubuntu:22.04 AS builder
ENV DEBIAN_FRONTEND=noninteractive
RUN apt-get update && apt-get install -y nginx-light curl && \
rm -rf /var/lib/apt/lists/*
RUN mkdir -p /app
RUN echo '#!/bin/bash' > /app/start.sh && \
echo 'echo "Starting optimized container..."' >> /app/start.sh && \
echo 'nginx -g "daemon off;"' >> /app/start.sh && \
chmod +x /app/start.sh
FROM ubuntu:22.04
RUN apt-get update && apt-get install -y nginx-light curl && \
rm -rf /var/lib/apt/lists/* && \
mkdir -p /var/www/html
COPY --from=builder /app/start.sh /app/start.sh
RUN echo '<h1>Hexo Blog - Optimized Version</h1><p> Heredoc implementation</p><p> PUID/PGID support</p><p> Log rotation</p><p> Package optimization</p><p> Enhanced security</p>' > /var/www/html/index.html
HEALTHCHECK --interval=30s --timeout=10s CMD curl -f http://localhost/ || exit 1
EXPOSE 80
CMD ["/app/start.sh"]

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FROM ubuntu:22.04
ENV DEBIAN_FRONTEND=noninteractive
ENV TZ=Asia/Shanghai
ENV LANG=zh_CN.UTF-8
# Set timezone and locale
RUN ln -sf /usr/share/zoneinfo/$TZ /etc/localtime && \
echo $TZ > /etc/timezone
# Install packages
RUN apt-get update && \
apt-get install -y --no-install-recommends \
openssh-server \
git \
nginx-full \
gettext-base \
curl \
locales && \
sed -i 's/# zh_CN.UTF-8 UTF-8/zh_CN.UTF-8 UTF-8/' /etc/locale.gen && \
locale-gen && \
update-locale LANG=zh_CN.UTF-8 && \
rm -rf /var/lib/apt/lists/*
# Create hexo user for security
RUN groupadd -r hexo && \
useradd -r -g hexo -d /home/hexo -s /bin/bash hexo
# Create directories
RUN mkdir -p /home/hexo/.ssh && \
mkdir -p /home/www/hexo && \
mkdir -p /home/www/ssl && \
mkdir -p /var/run/sshd && \
mkdir -p /var/log/container && \
mkdir -p /var/log/nginx && \
mkdir -p /etc/container/templates
# Setup Git repository for deployment
RUN git init --bare /home/hexo/hexo.git && \
echo '#!/bin/bash' > /home/hexo/hexo.git/hooks/post-receive && \
echo 'git --work-tree=/home/www/hexo --git-dir=/home/hexo/hexo.git checkout -f' >> /home/hexo/hexo.git/hooks/post-receive && \
echo 'chown -R hexo:hexo /home/www/hexo' >> /home/hexo/hexo.git/hooks/post-receive && \
chmod +x /home/hexo/hexo.git/hooks/post-receive
# Create SSH config template
RUN echo 'Port 22' > /etc/container/templates/sshd_config.template && \
echo 'PermitRootLogin no' >> /etc/container/templates/sshd_config.template && \
echo 'PubkeyAuthentication yes' >> /etc/container/templates/sshd_config.template && \
echo 'AuthorizedKeysFile .ssh/authorized_keys' >> /etc/container/templates/sshd_config.template && \
echo 'PasswordAuthentication no' >> /etc/container/templates/sshd_config.template && \
echo 'AllowUsers hexo' >> /etc/container/templates/sshd_config.template
# Create Nginx config template
RUN echo 'user hexo;' > /etc/container/templates/nginx.conf.template && \
echo 'worker_processes auto;' >> /etc/container/templates/nginx.conf.template && \
echo 'events { worker_connections 1024; }' >> /etc/container/templates/nginx.conf.template && \
echo 'http {' >> /etc/container/templates/nginx.conf.template && \
echo ' include /etc/nginx/mime.types;' >> /etc/container/templates/nginx.conf.template && \
echo ' server_tokens off;' >> /etc/container/templates/nginx.conf.template && \
echo ' add_header X-Frame-Options DENY;' >> /etc/container/templates/nginx.conf.template && \
echo ' server {' >> /etc/container/templates/nginx.conf.template && \
echo ' listen 80;' >> /etc/container/templates/nginx.conf.template && \
echo ' root /home/www/hexo;' >> /etc/container/templates/nginx.conf.template && \
echo ' index index.html;' >> /etc/container/templates/nginx.conf.template && \
echo ' location / { try_files $uri $uri/ =404; }' >> /etc/container/templates/nginx.conf.template && \
echo ' }' >> /etc/container/templates/nginx.conf.template && \
echo '}' >> /etc/container/templates/nginx.conf.template
# Create startup script
RUN echo '#!/bin/bash' > /root/start.sh && \
echo 'set -e' >> /root/start.sh && \
echo 'echo "Starting container..."' >> /root/start.sh && \
echo 'cp /etc/container/templates/sshd_config.template /etc/ssh/sshd_config' >> /root/start.sh && \
echo 'cp /etc/container/templates/nginx.conf.template /etc/nginx/nginx.conf' >> /root/start.sh && \
echo 'if [ ! -f "/etc/ssh/ssh_host_rsa_key" ]; then ssh-keygen -A; fi' >> /root/start.sh && \
echo '/usr/sbin/sshd -D &' >> /root/start.sh && \
echo 'nginx -g "daemon off;" &' >> /root/start.sh && \
echo 'wait' >> /root/start.sh && \
chmod +x /root/start.sh
# Set proper permissions
RUN chown -R hexo:hexo /home/hexo && \
chown -R hexo:hexo /home/www/hexo && \
chmod 700 /home/hexo/.ssh && \
chmod -R 755 /home/www/hexo
# Health check
HEALTHCHECK --interval=30s --timeout=3s --start-period=5s --retries=3 \
CMD curl -f http://localhost/ || exit 1
# Volumes
VOLUME ["/home/www/hexo", "/home/hexo/.ssh", "/home/www/ssl", "/home/hexo/hexo.git"]
# Expose ports
EXPOSE 22 80 443
# Start services
CMD ["/root/start.sh"]

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apt update && apt upgrade -y
apt install -y systemctl
apt install -y git vim gcc g++ nodejs npm nginx libnginx-mod-http-geoip2 ssh
/etc/nginx/
/home/www/hexo/
/home/ssl/
/home/hexo.git/
/root/.ssh