drain haproxy on shutdown and keep the stats listener on loopback

2026-09-26 14:38:25 +10:00
parent 4fcee63925
commit 2cbac81015
2 changed files with 12 additions and 1 deletions
@@ -21,6 +21,7 @@ spec:
        app: haproxy
    spec:
      automountServiceAccountToken: false
+      terminationGracePeriodSeconds: 150
      affinity:
        podAntiAffinity:
          requiredDuringSchedulingIgnoredDuringExecution:
@@ -79,6 +80,15 @@ spec:
            - name: stats
              containerPort: 9090
              protocol: TCP
+          lifecycle:
+            preStop:
+              exec:
+                # SIGUSR1 to the master soft-stops the workers; hard-stop-after
+                # caps the drain. Wait so kubelet holds SIGTERM until it is done.
+                command:
+                  - /bin/sh
+                  - -c
+                  - kill -s USR1 1; while kill -0 1 2>/dev/null; do sleep 1; done
          livenessProbe:
            httpGet:
              path: /healthz