Fix ansible-lint config and migrate CentOS container to SSH-based testing

.github/workflows/ci-cd.yml

@@ -204,7 +204,7 @@ jobs:
         mkdir -p test-inventory
         cat > test-inventory/hosts <<EOF
         [wordpress_servers]
-        test-centos ansible_connection=docker ansible_docker_extra_args="--user=root"
+        test-centos ansible_host=localhost ansible_port=2223 ansible_user=testuser ansible_ssh_private_key_file=~/.ssh/id_rsa ansible_ssh_common_args='-o StrictHostKeyChecking=no'
         EOF
     
     - name: Build CentOS test container
@@ -212,27 +212,45 @@ jobs:
         docker build -t test-centos:stream9 -f- . <<EOF
         FROM quay.io/centos/centos:stream9
         RUN dnf update -y && dnf install -y \
-            python3 python3-pip sudo openssh-server systemd \
+            python3 python3-pip sudo openssh-server curl \
             && dnf clean all
         RUN useradd -m -s /bin/bash testuser && \
             echo 'testuser ALL=(ALL) NOPASSWD:ALL' >> /etc/sudoers
-        CMD ["/sbin/init"]
+        # Configure SSH
+        RUN mkdir /var/run/sshd
+        RUN echo 'PermitRootLogin yes' >> /etc/ssh/sshd_config
+        RUN echo 'PasswordAuthentication no' >> /etc/ssh/sshd_config
+        RUN echo 'PubkeyAuthentication yes' >> /etc/ssh/sshd_config
+        RUN ssh-keygen -A
+        EXPOSE 22
+        # Start SSH service in foreground to keep container running
+        CMD ["/usr/sbin/sshd", "-D"]
         EOF
     
     - name: Run CentOS test container
       run: |
+        # Generate SSH key (reuse from Ubuntu test)
+        mkdir -p ~/.ssh
+        if [ ! -f ~/.ssh/id_rsa ]; then
+          ssh-keygen -t rsa -b 4096 -f ~/.ssh/id_rsa -N ""
+        fi
+        
+        # Start container
         docker run -d --name test-centos \
-          --privileged \
-          --tmpfs /tmp \
-          --tmpfs /run \
-          --tmpfs /run/lock \
-          -v /sys/fs/cgroup:/sys/fs/cgroup:ro \
+          -p 2223:22 \
           test-centos:stream9
         
-        # Wait for container to be ready
+        # Wait for SSH to be ready
         sleep 10
         
-        # Check if container is running
+        # Copy SSH key to container
+        docker exec test-centos mkdir -p /home/testuser/.ssh
+        docker cp ~/.ssh/id_rsa.pub test-centos:/home/testuser/.ssh/authorized_keys
+        docker exec test-centos chown -R testuser:testuser /home/testuser/.ssh
+        docker exec test-centos chmod 700 /home/testuser/.ssh
+        docker exec test-centos chmod 600 /home/testuser/.ssh/authorized_keys
+        
+        # Test if container is running
         if ! docker ps | grep -q test-centos; then
           echo "CentOS container failed to start, checking logs:"
           docker logs test-centos