test(infra): plain opc-plc fixture healthcheck uses bash /dev/tcp (#817)

The opc-plc image ships no netstat, so the old check left otopcua-opc-plc permanently unhealthy. Same probe as the NAT fixture (27302314). Redeployed to /opt/otopcua-opcuaclient on the shared docker host; reports healthy.
2026-11-11 01:32:38 -05:00
parent 8e8408a9ca
commit bde6cce2fc
1 changed files with 3 additions and 1 deletions
@@ -38,7 +38,9 @@ services:
      # opc-plc doesn't expose an HTTP health endpoint by default; use a TCP
      # probe via a shell the base image ships with. The fixture does its own
      # TCP probe but healthcheck surfaces status in `docker ps` for humans.
-      test: ["CMD-SHELL", "netstat -an | grep -q ':50000.*LISTEN' || exit 1"]
+      # #817: bash's /dev/tcp, NOT netstat — the image ships no netstat, so the old
+      # `netstat -an | grep` check left the container permanently "unhealthy" (same fix as nat/, 27302314).
+      test: ["CMD", "bash", "-c", "exec 3<>/dev/tcp/127.0.0.1/50000"]
      interval: 5s
      timeout: 2s
      retries: 10