Add retry loop for oc login with kubeadmin credentials

Add a 5-minute retry loop (30 attempts with 10-second intervals) to ensure
successful login to the provisioned cluster using kubeadmin credentials. This
handles cases where the cluster API is accessible but authentication may not
be immediately ready.

The retry loop includes proper validation via 'oc whoami' and integrates with
the existing provisioning retry logic.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <[email protected]>

Author: rhopp

integration-tests/pipelines/tssc-cli-e2e.yaml

@@ -207,12 +207,53 @@ spec:
                 echo "Console is ready. Continuing."
                 echo "--- Console Accessibility Check Finished ---"
 
-                # If we reach here, both CSR approval and console accessibility succeeded
+                # --- OC Login Retry Loop ---
+                echo "--- Starting OC Login Process ---"
+                login_max_retries=30  # 5 minutes with 10-second intervals
+                login_sleep_duration=10
+                login_successful=false
+
+                for ((k=1; k<=login_max_retries; k++)); do
+                  echo "OC Login Attempt $k of $login_max_retries: Attempting to login with kubeadmin..."
+                  if oc login --insecure-skip-tls-verify=true "$api_url" -u kubeadmin -p "$kubeadminpass" 2>&1; then
+                    echo "Successfully logged in as kubeadmin on attempt $k."
+                    if oc whoami 2>&1; then
+                      echo "Confirmed login - current user: $(oc whoami)"
+                      login_successful=true
+                      break
+                    else
+                      echo "Login succeeded but 'oc whoami' failed on attempt $k."
+                    fi
+                  else
+                    oc_login_exit_code=$?
+                    echo "OC login failed on attempt $k (exit code: $oc_login_exit_code)."
+                  fi
+
+                  if [[ "$k" -lt "$login_max_retries" ]]; then
+                    echo "Sleeping for $login_sleep_duration seconds before next login retry..."
+                    sleep "$login_sleep_duration"
+                  fi
+                done
+
+                if [[ "$login_successful" == "false" ]]; then
+                  echo "Failed to login with kubeadmin after $login_max_retries attempts."
+                  if [[ "$provisioning_attempt" -lt "$provisioning_max_retries" ]]; then
+                    echo "Will retry entire provisioning process..."
+                    continue
+                  else
+                    echo "All provisioning attempts exhausted. Exiting."
+                    exit 1
+                  fi
+                fi
+                echo "OC login completed successfully."
+                echo "--- OC Login Process Finished ---"
+
+                # If we reach here, CSR approval, console accessibility, and OC login all succeeded
                 provisioning_successful=true
                 echo "=== Cluster Provisioning Completed Successfully on Attempt $provisioning_attempt ==="
                 break
               done
-
+              oc get co
               if [[ "$provisioning_successful" == "false" ]]; then
                 echo "Cluster provisioning failed after $provisioning_max_retries attempts."
                 exit 1