Kubernetes php-fpm & nginx slow to start

Im trying to put a php symfony project on kubernetes !
It work but my php-fpm is slow to start

I build this as one pod with one php container and one nginx container

apiVersion: apps/v1
kind: Deployment
metadata:
  name: php-deployment
  namespace: {{ .Values.namespace }}
  labels:
    app: php
spec:
  replicas: {{ .Values.php.replicas }}
  selector:
    matchLabels:
      app: php
  minReadySeconds: 3
  strategy:
    type: RollingUpdate
    rollingUpdate:
      maxUnavailable: 25%    # Specifies the maximum number of Pods that can be unavailable during the update process (in percentage or number).
      maxSurge: 25%          # Specifies the maximum number of additional Pods that can be created above the desired number of Pods during the update process (in percentage or number).
  template:
    metadata:
      labels:
        app: php
    spec:
      terminationGracePeriodSeconds: 15
      initContainers:
        - name: init-symfony
          image: {{ .Values.php.image }}  
          command: ["/bin/sh", "-c"]
          args:
            - |
              cp -R /var/www/symfony/. /var/www/share 
              cd /var/www/share
              php bin/console c:c || true
              chown www-data:www-data -R . 
          env:
          - name: DATABASE_URL
            value: 'postgresql://dummy:dummy@dummy:5432/dummy?serverVersion=14'
          volumeMounts:
            - name: www-storage
              mountPath: /var/www/share
      containers:
      - name: php
        image: {{ .Values.php.image }}
        command: ["/bin/sh", "-c"]
        args:
          - |
            php-fpm
        lifecycle:
          preStop:
            exec:
              command: ["/bin/sh", "-c", "sleep 15"]
        # resources:
        #   requests:
        #     memory: "1024Mi"
        #     cpu: "50m"
        #   limits:
        #     memory: "2048Mi"
        #     cpu: "100m"
        readinessProbe:
          tcpSocket:
            port: 9000
          initialDelaySeconds: 5
          periodSeconds: 10
          timeoutSeconds: 2
          failureThreshold: 3
        ports:
        - containerPort: 9000
        volumeMounts:
        - name: php-config-volume
          mountPath: /var/www/symfony/.env.local
          subPath: php.conf
        - name: www-storage
          mountPath: /var/www/symfony
        - name: key-storage
          mountPath: /var/www/symfony/config/jwt

      - name: nginx
        image: {{ .Values.php.image }} 
        resources:
          requests:
            memory: "64Mi"
            cpu: "10m"
        readinessProbe:
          httpGet:
            path: /nginx/heal
            port: 80
          initialDelaySeconds: 5
          periodSeconds: 10
          timeoutSeconds: 2
          failureThreshold: 3
        ports:
        - containerPort: 80
        volumeMounts:
        - name: www-storage
          mountPath: /var/www/symfony      
      volumes:
        - name: php-config-volume
          configMap:
            name: php-config 
        - name: www-storage
          emptyDir: {}
        - name: key-storage
          persistentVolumeClaim:
            claimName: pv-key-claim

So with this chart when i restart or do a rolling update my first container wait the second to be ready (so php-fpm is running on port 9000 and nginx on 80)

On my nginx i created a /nginx/health to check when it is ready
I tried to run my pod without runing php-fpm and start it by hand with the command php-fpm (it write php-fpm is ready to handle connection) and it take a lot of time ‘arround 30 seconds’ to show my page
One of the solution that i get is to put the nginx readyness probe to smt high that fpm can start without terminating the old pod

but i wonder why php-fpm tell me that he is listening for request but is not fully ready

Thanks 😀 !