91 lines
2.4 KiB
Bash
91 lines
2.4 KiB
Bash
#!/bin/sh
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# 供 yh_nginx 容器：在官方 entrypoint 之前等待 Compose/Podman 网络内 web/admin/api 可访问。
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# 解决 1) 启动瞬间 host not found；2) Podman 无 127.0.0.11 时勿用 resolver+变量 proxy_pass（否则 502/超时）。
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#
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# 探测顺序：HTTP(wget) → TCP(nc) → ICMP(ping)。部分环境禁 ping 或 busybox wget 异常时，nc 仍可判定「能连上端口」。
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set -e
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MAX="${NGINX_WAIT_UPSTREAM_SEC:-120}"
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DEBUG="${NGINX_WAIT_DEBUG:-0}"
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log() {
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if [ "$DEBUG" = "1" ] || [ "$DEBUG" = "true" ]; then
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echo "yh_nginx(wait): $*" >&2
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fi
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}
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echo "yh_nginx: waiting for upstream (web:80 admin:80 api:8088), max ${MAX}s..."
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ping_one() {
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host="$1"
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if ping -c1 -W2 "$host" >/dev/null 2>&1; then
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return 0
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fi
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ping -c1 -w3 "$host" >/dev/null 2>&1
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}
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# 仅测端口是否打开（不依赖 HTTP 状态码）
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tcp_open() {
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host="$1"
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port="$2"
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if ! command -v nc >/dev/null 2>&1; then
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return 1
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fi
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nc -z -w3 "$host" "$port" 2>/dev/null
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}
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# HTTP 成功（2xx/3xx）；busybox wget 遇 404 会非 0，故 API 必须用会返回 200 的路径
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http_ok() {
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host="$1"
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port="$2"
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path="${3:-/}"
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if ! command -v wget >/dev/null 2>&1; then
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return 1
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fi
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# -T：秒；部分镜像仅支持短选项
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if wget -q -O/dev/null -T 5 "http://${host}:${port}${path}" 2>/dev/null; then
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return 0
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fi
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return 1
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}
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upstream_ok() {
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host="$1"
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port="$2"
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path="${3:-/}"
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if http_ok "$host" "$port" "$path"; then
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log "http OK ${host}:${port}${path}"
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return 0
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fi
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if tcp_open "$host" "$port"; then
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log "tcp OK ${host}:${port}"
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return 0
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fi
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if ping_one "$host"; then
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log "ping OK $host (HTTP/TCP 未验证，仅 DNS/L3)"
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return 0
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fi
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return 1
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}
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n=0
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while [ "$n" -lt "$MAX" ]; do
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# api 用 /api/health 保证 wget 为 200
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if upstream_ok web 80 / && upstream_ok admin 80 / && upstream_ok api 8088 /api/health; then
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echo "yh_nginx: upstream OK, starting nginx..."
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exec /docker-entrypoint.sh nginx -g 'daemon off;'
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fi
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# 每 15s 打一行，便于 docker logs 排查
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if [ "$n" -gt 0 ] && [ $((n % 15)) -eq 0 ]; then
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echo "yh_nginx: still waiting... ${n}s / max ${MAX}s (web admin api)" >&2
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fi
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n=$((n + 1))
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sleep 1
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done
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echo "yh_nginx: timeout after ${MAX}s. 调试: docker logs yh_nginx；或临时 export NGINX_WAIT_UPSTREAM_SEC=300" >&2
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echo "yh_nginx: 可设 NGINX_WAIT_DEBUG=1 查看每步探测；确认 yh_api 内 curl -s http://127.0.0.1:8088/api/health" >&2
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exit 1
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