136 lines
3.6 KiB
Bash
136 lines
3.6 KiB
Bash
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#!/bin/bash
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# =============================================================================
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# 企微IT智能服务台 — 蓝绿部署切换脚本
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# =============================================================================
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# 用法：
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# ./switch-blue-green.sh status # 查看当前环境
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# ./switch-blue-green.sh to-blue # 切换到 Blue 环境
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# ./switch-blue-green.sh to-green # 切换到 Green 环境
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# ./switch-blue-green.sh deploy # 部署到 Green 环境（先构建再启动）
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# ./switch-blue-green.sh rollback # 回滚（切换到另一环境）
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# =============================================================================
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set -e
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# 配置
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COMPOSE_FILE="docker-compose.yml"
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COMPOSE_FILE_GREEN="docker-compose-green.yml"
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ACTIVE_FILE="/tmp/active_environment"
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ENV_FILE=".env"
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# 颜色
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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'
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log_info() { echo -e "${GREEN}[INFO]${NC} $1"; }
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log_warn() { echo -e "${YELLOW}[WARN]${NC} $1"; }
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log_error() { echo -e "${RED}[ERROR]${NC} $1"; }
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# 获取当前环境
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get_active() {
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if [ -f "$ACTIVE_FILE" ]; then
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cat "$ACTIVE_FILE"
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else
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echo "blue" # 默认 blue
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fi
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}
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# 切换到指定环境
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switch_to() {
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local env=$1
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local current=$(get_active)
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if [ "$env" = "$current" ]; then
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log_warn "当前已是 $env 环境，无需切换"
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return
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fi
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# 切换 Nginx upstream
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log_info "切换 Nginx upstream 到 $env..."
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# 这里需要根据实际情况修改 Nginx 配置
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# 简化版：直接通过端口切换
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echo "$env" > "$ACTIVE_FILE"
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log_info "已切换到 $env 环境"
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}
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# 部署到 Green 环境
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deploy_green() {
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log_info "开始部署到 Green 环境..."
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# 检查 docker-compose-green.yml 是否存在
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if [ ! -f "$COMPOSE_FILE_GREEN" ]; then
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log_error "配置文件不存在: $COMPOSE_FILE_GREEN"
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exit 1
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fi
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# 停止现有 Green 容器（如果存在）
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log_info "停止现有 Green 容器..."
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docker compose -f "$COMPOSE_FILE_GREEN" down 2>/dev/null || true
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# 构建并启动
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log_info "构建 Green 环境镜像..."
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docker compose -f "$COMPOSE_FILE_GREEN" build
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log_info "启动 Green 环境服务..."
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docker compose -f "$COMPOSE_FILE_GREEN" up -d
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# 等待健康检查
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log_info "等待服务就绪..."
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sleep 15
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# 检查状态
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if docker compose -f "$COMPOSE_FILE_GREEN" ps | grep -q "healthy"; then
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log_info "Green 环境部署成功！"
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else
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log_warn "部分服务可能未完全就绪，请手动检查"
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fi
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}
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# 查看状态
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show_status() {
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local active=$(get_active)
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echo ""
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echo "========================================"
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echo " 蓝绿部署状态"
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echo "========================================"
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echo " 当前活动环境: $active"
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echo ""
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echo " Blue 环境: $(docker ps --filter name=wecom_it_backend --format '{{.Status}}' 2>/dev/null || echo '未运行')"
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echo " Green 环境: $(docker ps --filter name=wecom_it_backend_green --format '{{.Status}}' 2>/dev/null || echo '未运行')"
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echo "========================================"
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echo ""
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}
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# 主命令
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case "${1:-status}" in
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status)
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show_status
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;;
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to-blue)
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switch_to blue
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;;
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to-green)
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switch_to green
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;;
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deploy)
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deploy_green
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;;
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rollback)
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current=$(get_active)
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if [ "$current" = "blue" ]; then
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switch_to green
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else
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switch_to blue
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fi
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;;
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*)
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echo "用法: $0 {status|to-blue|to-green|deploy|rollback}"
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exit 1
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;;
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esac
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