Add validation for Apache loadBalancerVolumePath

Signed-off-by: doxiao <[email protected]>

Author: doxiao

kubernetes/create-weblogic-domain-inputs.yaml

@@ -102,10 +102,13 @@ loadBalancer: TRAEFIK
 # This defines the /location in the built-in Apache plugin configuration module for WebLogic
 loadBalancerAppPrepath: /
 
-# Docker volume path for APACHE. By default, it is empty, which causes the volume mount be 
-# disabled and, thereforem the built-in Apache plugin config be used.
-# Use this to provide your own Apache plugin configuration as needed; simply define this 
-# path and put your own custom_mod_wl_apache.conf file under this path.
+# Docker volume path for APACHE.
+# By default, the path is empty, and therefore, the built-in default Apache plugin
+# configuration is used.
+# Use this to provide your own Apache plugin configuration as needed; simply define
+# this path and put your own custom_mod_wl_apache.conf file under this path.
+# If specified path does not exist, or customer_mod_wl_apache.conf file is missing 
+# under the specified path, the create domain script will fail with a validation error.
 loadBalancerVolumePath:
 
 # Boolean to indicate if the admin port is going to be exposed for APACHE. By default, it is false.

kubernetes/internal/create-weblogic-domain.sh

@@ -604,11 +604,20 @@ function createYamlFiles {
       enableLoadBalancerExposeAdminPortPrefix="${disabledPrefix}"
     fi
 
+    enableLoadBalancerVolumePathPrefix="${disabledPrefix}"
+    apacheConfigFileName="custom_mod_wl_apache.conf"
     if [ ! -z "${loadBalancerVolumePath}" ]; then
-      enableLoadBalancerVolumePathPrefix="${enabledPrefix}"
-      sed -i -e "s:%LOAD_BALANCER_VOLUME_PATH%:${loadBalancerVolumePath}:g" ${apacheOutput}
-    else
-      enableLoadBalancerVolumePathPrefix="${disabledPrefix}"
+      if [ ! -d ${loadBalancerVolumePath} ]; then
+        echo -e "\nERROR: \nThe specified loadBalancerVolumePath $loadBalancerVolumePath does not exist! \n"
+        fail "Exiting due to a validation error"
+      elif [ ! -f ${loadBalancerVolumePath}/${apacheConfigFileName} ]; then
+        echo -e "\nERROR: \nThe required file ${apacheConfigFileName} does not exist under the specified loadBalancerVolumePath $loadBalancerVolumePath! \n"
+        fail "Exiting due to a validation error"
+      else
+        enableLoadBalancerVolumePathPrefix="${enabledPrefix}"
+        sed -i -e "s:%LOAD_BALANCER_VOLUME_PATH%:${loadBalancerVolumePath}:g" ${apacheOutput}
+
+      fi
     fi
 
     sed -i -e "s:%ENABLE_LOAD_BALANCER_EXPOSE_ADMIN_PORT%:${enableLoadBalancerExposeAdminPortPrefix}:g" ${apacheOutput}