there is no tailer log in squid deployment tailer container

    OCP-74596 which was created and automated as a result of RCA of https://issues.redhat.com/browse/OCPBUGS-33526, and the test case failed in CI due to image path.  However, after fixing image path in proxy-deployment.yaml when manually testing OCP-74596, it was found tailer container of squid deployment pod has no log at all, detailed reproducing steps are in https://docs.google.com/document/d/1qqidJBgXdZ9Gvab_YoY5GIauimIo_ien5k6MchiuN7k/edit?tab=t.0

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    I asked cursorAI to help me correct the proxy_deployment.yaml, here is my updated-proxy_deployment.yaml

$ cat updated_proxy_deployment.yaml 
apiVersion: apps/v1
kind: Deployment
metadata:
  labels:
    app: squid
  name: squid-deployment
spec:
  progressDeadlineSeconds: 600
  replicas: 1
  revisionHistoryLimit: 10
  selector:
    matchLabels:
      app: squid
  strategy:
    rollingUpdate:
      maxSurge: 25%
      maxUnavailable: 25%
    type: RollingUpdate
  template:
    metadata:
      creationTimestamp: null
      labels:
        app: squid
    spec:
      containers:
      - command:
        - /bin/bash
        - -c
        - |
          #!/bin/bash
          set -e
 
          # allow arguments to be passed to squid
          if [[ ${1:0:1} = '-' ]]; then
            EXTRA_ARGS="$@"
            set --
          elif [[ ${1} == squid || ${1} == $(which squid) ]]; then
            EXTRA_ARGS="${@:2}"
            set --
          fi
          cat << EOF > /etc/squid/squid.conf
          acl SSL_ports port 443
          acl SSL_ports port 6443
          acl Safe_ports port 80
          acl Safe_ports port 21
          acl Safe_ports port 443
          acl Safe_ports port 6443
          acl Safe_ports port 70
          acl Safe_ports port 210
          acl Safe_ports port 1025-65535
          acl Safe_ports port 280
          acl Safe_ports port 488
          acl Safe_ports port 591
          acl Safe_ports port 777
          acl CONNECT method CONNECT
          http_access deny !Safe_ports
          http_access deny CONNECT !SSL_ports
          # http_access allow localhost manager
          # http_access deny manager
          http_access allow all
          # http_access deny all
          http_port 3128
          access_log /var/log/squid/access.log squid
          coredump_dir /var/spool/squid3
          refresh_pattern ^ftp:           1440    20%     10080
          refresh_pattern ^gopher:        1440    0%      1440
          refresh_pattern -i (/cgi-bin/|\?) 0     0%      0
          refresh_pattern .               0       20%     4320
          EOF          # ensure log directory exists
          mkdir -p /var/log/squid
          chown -R squid:squid /var/log/squid || true          # default behaviour is to launch squid
          if [[ -z ${1} ]]; then
            echo "Starting squid..."
            exec $(which squid) -f /etc/squid/squid.conf -NYCd 1 ${EXTRA_ARGS}
          else
            exec "$@"
          fi
        image: docker.io/sameersbn/squid:3.5.27-2
        imagePullPolicy: IfNotPresent
        name: squid
        ports:
        - containerPort: 3128
          protocol: TCP
        resources: {}
        terminationMessagePath: /dev/termination-log
        terminationMessagePolicy: File
        volumeMounts:
        - mountPath: /var/log/squid
          name: log-dir
      - args:
        - |
          echo "Waiting for squid to start and create log file..."
          sleep 5
          while [ ! -f /var/log/squid/access.log ]; do
            echo "Log file not found, waiting..."
            sleep 2
          done
          echo "Log file found, starting to tail..."
          exec tail -F /var/log/squid/access.log
        command:
        - /bin/sh
        - -c
        image: busybox
        imagePullPolicy: Always
        name: tailer
        resources: {}
        terminationMessagePath: /dev/termination-log
        terminationMessagePolicy: File
        volumeMounts:
        - mountPath: /var/log/squid
          name: log-dir
      dnsPolicy: ClusterFirst
      restartPolicy: Always
      schedulerName: default-scheduler
      securityContext: {}
      terminationGracePeriodSeconds: 30
      volumes:
      - emptyDir: {}
        name: log-dir


oc replaced the proxy deployment yaml, waited till squid pod re-created, deleted previous deployment SVC, re-exposed the updated deployment as LoadBalancer service, after all, checking tailer log again:

$ oc logs squid-deployment-764867db48-9clpb -c tailer 
Waiting for squid to start and create log file...
Log file found, starting to tail...