42 lines
1.1 KiB
Bash
42 lines
1.1 KiB
Bash
#!/usr/bin/env bash
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# 不自动运行：单机 Docker Compose 部署脚本示例——拉取指定版本、健康检查、失败自动回滚
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# 用法：IMAGE_TAG=<提交哈希> ./deploy.sh
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# 约定：compose.yaml 里 api 服务的镜像写成 image: registry.example.com/app/api:${IMAGE_TAG}
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set -euo pipefail
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: "${IMAGE_TAG:?需要指定 IMAGE_TAG}"
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HEALTH_URL="${HEALTH_URL:-http://127.0.0.1:8080/healthz}"
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STATE_FILE="${STATE_FILE:-.deployed_tag}"
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previous="$(cat "$STATE_FILE" 2>/dev/null || true)"
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deploy() {
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local tag="$1"
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echo "部署版本 $tag"
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IMAGE_TAG="$tag" docker compose pull api
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IMAGE_TAG="$tag" docker compose up -d --no-deps api
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}
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healthy() {
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for _ in $(seq 1 30); do
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if curl -fsS --max-time 2 "$HEALTH_URL" >/dev/null; then
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return 0
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fi
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sleep 2
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done
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return 1
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}
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deploy "$IMAGE_TAG"
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if healthy; then
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echo "$IMAGE_TAG" > "$STATE_FILE"
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echo "部署成功：$IMAGE_TAG"
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else
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echo "健康检查失败" >&2
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if [[ -n "$previous" ]]; then
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echo "回滚到 $previous" >&2
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deploy "$previous"
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healthy && echo "已回滚到 $previous" >&2
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fi
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exit 1
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fi
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