fix(k8s): add procps to worker images and fix probe commands

- Add procps to git-hook and email-worker Dockerfiles (provides pgrep)
- Change all exec probes from pgrep to kill -0 1 (more reliable, bash built-in)
- Add startupProbe to gitserver with 30 failure threshold (5min max startup time)
- Increase gitserver liveness initialDelay to 30s for slower SSH init

deploy/values.yaml

@@ -281,7 +281,7 @@ gitserver:
   livenessProbe:
     tcpSocket:
       port: 8022
-    initialDelaySeconds: 10
+    initialDelaySeconds: 30
     periodSeconds: 15
     timeoutSeconds: 5
     failureThreshold: 3
@@ -289,11 +289,18 @@ gitserver:
   readinessProbe:
     tcpSocket:
       port: 8022
-    initialDelaySeconds: 5
+    initialDelaySeconds: 10
     periodSeconds: 10
     timeoutSeconds: 3
     failureThreshold: 3
 
+  startupProbe:
+    tcpSocket:
+      port: 8022
+    initialDelaySeconds: 0
+    periodSeconds: 10
+    failureThreshold: 30
+
   persistence:
     enabled: true
     storageClass: ""
@@ -324,7 +331,7 @@ emailWorker:
       command:
         - /bin/sh
         - -c
-        - "pgrep email-worker || exit 1"
+        - "kill -0 1 || exit 1"
     initialDelaySeconds: 10
     periodSeconds: 30
     timeoutSeconds: 5
@@ -335,7 +342,7 @@ emailWorker:
       command:
         - /bin/sh
         - -c
-        - "pgrep email-worker || exit 1"
+        - "kill -0 1 || exit 1"
     initialDelaySeconds: 5
     periodSeconds: 15
     timeoutSeconds: 3
@@ -373,7 +380,7 @@ gitHook:
       command:
         - /bin/sh
         - -c
-        - "pgrep git-hook || exit 1"
+        - "kill -0 1 || exit 1"
     initialDelaySeconds: 10
     periodSeconds: 15
     timeoutSeconds: 5
@@ -384,7 +391,7 @@ gitHook:
       command:
         - /bin/sh
         - -c
-        - "pgrep git-hook || exit 1"
+        - "kill -0 1 || exit 1"
     initialDelaySeconds: 5
     periodSeconds: 10
     timeoutSeconds: 3

docker/email-worker.Dockerfile

@@ -2,7 +2,7 @@
 FROM debian:bookworm-slim
 
 RUN apt-get update && apt-get install -y --no-install-recommends \
-    ca-certificates libssl3 \
+    ca-certificates libssl3 procps \
     && rm -rf /var/lib/apt/lists/*
 
 WORKDIR /app

docker/git-hook.Dockerfile

@@ -2,7 +2,7 @@
 FROM debian:bookworm-slim
 
 RUN apt-get update && apt-get install -y --no-install-recommends \
-    ca-certificates libssl3 openssh-client \
+    ca-certificates libssl3 openssh-client procps \
     && rm -rf /var/lib/apt/lists/*
 
 WORKDIR /app