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106 lines
3.1 KiB
106 lines
3.1 KiB
#!/bin/bash
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# 健康检查脚本：定期检查应用是否正常运行，如果不正常则自动重启
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# 配置参数
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APP_DIR="/app"
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DOCKER_COMPOSE_FILE="docker-compose.yml"
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CHECK_INTERVAL=300 # 检查间隔（秒）
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MAX_RESTARTS=3 # 最大重启次数
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RESTART_INTERVAL=3600 # 重启间隔（秒）
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# 带颜色的日志函数
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colored_log() {
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local color=$1
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local message=$2
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local reset="\033[0m"
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local colors=(
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["red"]="\033[31m"
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["green"]="\033[32m"
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["yellow"]="\033[33m"
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["blue"]="\033[34m"
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["purple"]="\033[35m"
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)
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echo -e "${colors[$color]}[$(date '+%Y-%m-%d %H:%M:%S')] $message$reset"
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}
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log() {
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colored_log "blue" "$1"
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}
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success() {
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colored_log "green" "$1"
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}
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error() {
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colored_log "red" "$1"
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}
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warning() {
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colored_log "yellow" "$1"
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}
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log "启动健康检查服务..."
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# 初始化重启计数器
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restart_count=0
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last_restart_time=$(date +%s)
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while true; do
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log "开始健康检查..."
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cd "$APP_DIR"
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# 检查容器是否在运行
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if docker-compose -f "$DOCKER_COMPOSE_FILE" ps | grep -q "Up"; then
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# 检查应用是否能正常响应
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if curl -s -o /dev/null -w "%{http_code}" http://localhost:3000 > /dev/null; then
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success "应用运行正常"
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else
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warning "应用容器在运行，但无法正常响应请求"
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# 查看应用日志
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log "查看应用日志："
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docker-compose -f "$DOCKER_COMPOSE_FILE" logs -n 10
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# 检查重启次数
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current_time=$(date +%s)
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time_since_last_restart=$((current_time - last_restart_time))
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if [ $restart_count -lt $MAX_RESTARTS ] || [ $time_since_last_restart -gt $RESTART_INTERVAL ]; then
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log "尝试重启应用..."
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if docker-compose -f "$DOCKER_COMPOSE_FILE" restart; then
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success "应用已重启"
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restart_count=$((restart_count + 1))
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last_restart_time=$current_time
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else
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error "应用重启失败"
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fi
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else
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error "已达到最大重启次数，在$RESTART_INTERVAL秒内不再尝试重启"
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fi
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fi
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else
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warning "应用容器未运行"
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# 检查重启次数
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current_time=$(date +%s)
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time_since_last_restart=$((current_time - last_restart_time))
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if [ $restart_count -lt $MAX_RESTARTS ] || [ $time_since_last_restart -gt $RESTART_INTERVAL ]; then
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log "尝试启动应用..."
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if docker-compose -f "$DOCKER_COMPOSE_FILE" up -d; then
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success "应用已启动"
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restart_count=$((restart_count + 1))
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last_restart_time=$current_time
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else
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error "应用启动失败"
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fi
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else
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error "已达到最大重启次数，在$RESTART_INTERVAL秒内不再尝试启动"
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fi
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fi
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log "健康检查完成，等待$CHECK_INTERVAL秒后再次检查..."
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sleep $CHECK_INTERVAL
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done
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