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