Since the autoscaler takeover (static codex-cloud-worker stopped at 2026-10-26 07:02:55, disabled by design), the monitor's worker check (systemctl is-active codex-cloud-worker) has failed every 5 minutes while the real workers were healthy (health worker_ok kept passing, GET /workers shows live autoscale-1 + host-1). A monitor that always fails masks real failures. Fix: pass if either codex-autoscaler or codex-cloud-worker is active, covering both deployment modes; the health check still covers worker heartbeat freshness.
176 lines
6.0 KiB
Bash
Executable File
176 lines
6.0 KiB
Bash
Executable File
#!/bin/sh
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# 主机侧监控检查:输出一行 JSON 状态,任一项 fail 则退出非零。
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#
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# 用法(主机上,codexsvc 可读权限即可):
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# sh /opt/codex-app-server/deploy/monitor.sh
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# sh /opt/codex-app-server/deploy/monitor.sh --self-test
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#
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# 检查项(全部不需要密码、不读 env 文件):
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# server:systemctl is-active codex-cloud-server 为 active
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# worker:codex-autoscaler 或 codex-cloud-worker 任一为 active
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# (autoscaler 接管后静态 worker 故意停用,只查静态会误报:
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# 2026-10-26 07:02:55 静态 worker 停用后每 5 分钟 worker fail,
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# 实际 worker 正常、health 的 worker_ok 也一直 pass)
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# health:curl health,要求 ok=true、backend=postgres、db_ok=true、
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# worker_ok=true(worker 心跳 180 秒内,见 server.py)
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# postgres:pg_isready -h 127.0.0.1 -p 5432(只测就绪,不连库查数据,
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# 所以不需要密码;需要密码的 SELECT 1 那一步直接跳过,不做)
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# docker_postgres:docker ps 里 codex-postgres 在运行
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# disk:磁盘使用率 < 90%(默认看 /var/lib/codex-app-server,不存在则看 /)
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# app_dir:/opt/codex-app-server 目录存在
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#
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# 输出示例(单行 JSON,值只会是 pass/fail,不含任何密钥):
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# {"overall": "pass", "checks": {"server": "pass", ...}}
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#
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# --self-test:只验证脚本本身的机制(health JSON 解析 + 输出是合法 JSON),
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# 不验证主机健康。它会起一个本地 canned health server(只返回固定健康
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# JSON),断言 health 那一项为 pass;其它项在非主机机器上 fail 是正常的,
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# self-test 不因此失败。不要把 --self-test 通过误读成“主机健康”。
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#
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# 告警边界:本脚本只做“检查 + journal 日志”(配合 monitor.timer 每 5 分钟
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# 跑一次),它本身不会发消息给用户。推送到 Muse 聊天的告警仍需用户另行
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# 决定通道(SSH key 常驻通道或 webhook URL),见 deploy/README.md。
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set -eu
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HEALTH_URL=${MONITOR_HEALTH_URL:-http://127.0.0.1:8765/health}
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APP_DIR=${MONITOR_APP_DIR:-/opt/codex-app-server}
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DISK_PATH=${MONITOR_DISK_PATH:-/var/lib/codex-app-server}
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if [ ! -d "$DISK_PATH" ]; then DISK_PATH="/"; fi
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check_server() {
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if systemctl is-active codex-cloud-server >/dev/null 2>&1; then
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echo pass
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else
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echo fail
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fi
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}
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check_worker() {
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if systemctl is-active codex-autoscaler >/dev/null 2>&1 \
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|| systemctl is-active codex-cloud-worker >/dev/null 2>&1; then
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echo pass
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else
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echo fail
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fi
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}
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check_health() {
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OUT=$(curl -s --max-time 5 "$HEALTH_URL" || true)
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if [ -z "$OUT" ]; then echo fail; return; fi
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if printf '%s' "$OUT" | HEALTH_JSON="$OUT" python3 -c '
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import json, os, sys
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try:
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d = json.loads(os.environ["HEALTH_JSON"])
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except Exception:
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sys.exit(1)
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sys.exit(0 if (d.get("ok") is True and d.get("backend") == "postgres"
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and d.get("db_ok") is True
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and d.get("worker_ok") is True) else 1)
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' 2>/dev/null; then
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echo pass
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else
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echo fail
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fi
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}
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check_postgres() {
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if command -v pg_isready >/dev/null 2>&1 \
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&& pg_isready -h 127.0.0.1 -p 5432 >/dev/null 2>&1; then
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echo pass
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else
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echo fail
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fi
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}
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check_docker_postgres() {
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if command -v docker >/dev/null 2>&1 \
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&& docker ps --format '{{.Names}}' 2>/dev/null \
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| grep -qx 'codex-postgres'; then
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echo pass
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else
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echo fail
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fi
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}
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check_disk() {
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USE=$(df -P "$DISK_PATH" 2>/dev/null | awk 'NR==2 {print $5}' \
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| tr -d '% ' || true)
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case "$USE" in
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''|*[!0-9]*) echo fail ;;
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*) if [ "$USE" -lt 90 ]; then echo pass; else echo fail; fi ;;
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esac
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}
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check_app_dir() {
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if [ -d "$APP_DIR" ]; then echo pass; else echo fail; fi
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}
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run_checks() {
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S=$(check_server); W=$(check_worker); H=$(check_health)
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P=$(check_postgres); D=$(check_docker_postgres)
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K=$(check_disk); A=$(check_app_dir)
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OVERALL=pass
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for v in "$S" "$W" "$H" "$P" "$D" "$K" "$A"; do
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if [ "$v" != "pass" ]; then OVERALL=fail; break; fi
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done
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printf '{"overall": "%s", "checks": {"server": "%s", "worker": "%s", "health": "%s", "postgres": "%s", "docker_postgres": "%s", "disk": "%s", "app_dir": "%s"}}\n' \
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"$OVERALL" "$S" "$W" "$H" "$P" "$D" "$K" "$A"
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if [ "$OVERALL" = "pass" ]; then return 0; else return 1; fi
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}
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if [ "${1:-}" = "--self-test" ]; then
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# 起一个 canned health server:只返回固定健康 JSON,不读任何真实服务。
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SELF_PORT=18999
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python3 - "$SELF_PORT" <<'PY' &
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import http.server
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import json
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import sys
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class H(http.server.BaseHTTPRequestHandler):
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def do_GET(self):
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body = json.dumps({
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"ok": True, "service": "cloud-control-plane",
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"backend": "postgres", "db_ok": True,
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"worker_last_seen_seconds_ago": 1.0, "worker_ok": True,
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}).encode()
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self.send_response(200)
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self.send_header("Content-Type", "application/json")
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self.send_header("Content-Length", str(len(body)))
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self.end_headers()
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self.wfile.write(body)
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def log_message(self, *a):
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pass
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http.server.HTTPServer(("127.0.0.1", int(sys.argv[1])), H).serve_forever()
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PY
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SERVER_PID=$!
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trap 'kill $SERVER_PID 2>/dev/null || true' EXIT
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sleep 1
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MONITOR_HEALTH_URL="http://127.0.0.1:$SELF_PORT/health" \
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HEALTH_URL="http://127.0.0.1:$SELF_PORT/health" \
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sh "$0" > /tmp/monitor-self-test.json 2>/dev/null || true
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# 注意:上面那行是跑完整检查,health 以外项在非主机上 fail 是正常的;
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# self-test 只断言两件事:输出是合法 JSON,且 health 解析为 pass。
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if python3 -c '
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import json
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import sys
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with open("/tmp/monitor-self-test.json") as f:
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d = json.load(f)
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sys.exit(0 if d["checks"]["health"] == "pass" else 1)
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'; then
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echo "SELF-TEST PASS:输出是合法 JSON 且 health 解析为 pass(其它项在非主机上 fail 属正常,不影响 self-test)"
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cat /tmp/monitor-self-test.json
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exit 0
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else
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echo "SELF-TEST FAIL:health 解析未通过或输出不是合法 JSON" >&2
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cat /tmp/monitor-self-test.json >&2 || true
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exit 1
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fi
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fi
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run_checks
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