From da7f914d43fb5d6dab132ca1ec1249f542b9ae92 Mon Sep 17 00:00:00 2001
From: andxu <andxu@microsoft.com>
Date: Wed, 22 Sep 2021 14:51:39 +0800
Subject: [PATCH] add the logic to allow user to disable creating new azure
 resources

---
 .../maven/webapp/AbstractWebAppMojo.java      | 14 +++++++++
 .../azure/maven/webapp/DeployMojo.java        | 30 +++++++++++++++++++
 2 files changed, 44 insertions(+)

diff --git a/azure-webapp-maven-plugin/src/main/java/com/microsoft/azure/maven/webapp/AbstractWebAppMojo.java b/azure-webapp-maven-plugin/src/main/java/com/microsoft/azure/maven/webapp/AbstractWebAppMojo.java
index bb6a68c429..6cfedd9f87 100644
--- a/azure-webapp-maven-plugin/src/main/java/com/microsoft/azure/maven/webapp/AbstractWebAppMojo.java
+++ b/azure-webapp-maven-plugin/src/main/java/com/microsoft/azure/maven/webapp/AbstractWebAppMojo.java
@@ -87,6 +87,20 @@ public abstract class AbstractWebAppMojo extends AbstractAppServiceMojo {
     @Parameter(property = "webapp.skip", defaultValue = "false")
     protected boolean skip;
 
+    /**
+     * TODO(andxu): move this flag to AbstractAzureMojo
+     */
+    @JsonIgnore
+    @Parameter(property = "azure.resource.create.skip", defaultValue = "false")
+    protected boolean skipAzureResourceCreate;
+
+    /**
+     * TODO(andxu): move this flag to AbstractAzureMojo
+     */
+    @JsonIgnore
+    @Parameter(property = "skipCreateAzureResource")
+    protected boolean skipCreateAzureResource;
+
     /**
      * App Service region, which will only be used to create App Service at the first time.
      */
diff --git a/azure-webapp-maven-plugin/src/main/java/com/microsoft/azure/maven/webapp/DeployMojo.java b/azure-webapp-maven-plugin/src/main/java/com/microsoft/azure/maven/webapp/DeployMojo.java
index 6344a1304e..f796f5c60b 100644
--- a/azure-webapp-maven-plugin/src/main/java/com/microsoft/azure/maven/webapp/DeployMojo.java
+++ b/azure-webapp-maven-plugin/src/main/java/com/microsoft/azure/maven/webapp/DeployMojo.java
@@ -5,6 +5,7 @@
 
 package com.microsoft.azure.maven.webapp;
 
+import com.azure.core.management.exception.ManagementException;
 import com.microsoft.azure.maven.model.DeploymentResource;
 import com.microsoft.azure.maven.webapp.configuration.DeploymentSlotConfig;
 import com.microsoft.azure.maven.webapp.task.DeployExternalResourcesTask;
@@ -23,8 +24,10 @@
 import com.microsoft.azure.toolkit.lib.appservice.utils.AppServiceConfigUtils;
 import com.microsoft.azure.toolkit.lib.common.bundle.AzureString;
 import com.microsoft.azure.toolkit.lib.common.exception.AzureExecutionException;
+import com.microsoft.azure.toolkit.lib.common.exception.AzureToolkitRuntimeException;
 import com.microsoft.azure.toolkit.lib.common.messager.AzureMessager;
 import com.microsoft.azure.toolkit.lib.common.utils.Utils;
+import com.microsoft.azure.toolkit.lib.resource.AzureGroup;
 import org.apache.commons.lang3.ObjectUtils;
 import org.apache.commons.lang3.StringUtils;
 import org.apache.maven.artifact.versioning.ComparableVersion;
@@ -63,12 +66,34 @@ private IWebAppBase<?> createOrUpdateResource() throws AzureExecutionException {
             final AppServiceConfig appServiceConfig = getConfigParser().getAppServiceConfig();
             IWebApp app = Azure.az(AzureAppService.class).webapp(appServiceConfig.resourceGroup(), appServiceConfig.appName());
             final boolean newWebApp = !app.exists();
+            final boolean skipCreate = skipAzureResourceCreate || skipCreateAzureResource;
+            if (skipCreate) {
+                if (newWebApp) {
+                    throwForbidCreateResourceWarning("Web app", appName);
+                }
+                if (StringUtils.isNotBlank(appServiceConfig.servicePlanResourceGroup())) {
+                    final AzureGroup az = Azure.az(AzureGroup.class).subscription(subscriptionId);
+                    try {
+                        // check servicePlanResourceGroup for existence
+                        az.getByName(appServiceConfig.servicePlanResourceGroup());
+                    } catch (ManagementException e) {
+                        if (e.getResponse().getStatusCode() == 404) {
+                            throwForbidCreateResourceWarning("Resource group", appServiceConfig.servicePlanResourceGroup());
+                        }
+                    }
+                }
+            }
             AppServiceConfig defaultConfig = !newWebApp ? fromAppService(app, app.plan()) : buildDefaultConfig(appServiceConfig.subscriptionId(),
                 appServiceConfig.resourceGroup(), appServiceConfig.appName());
             mergeAppServiceConfig(appServiceConfig, defaultConfig);
             if (appServiceConfig.pricingTier() == null) {
                 appServiceConfig.pricingTier(appServiceConfig.runtime().webContainer() == WebContainer.JBOSS_7 ? PricingTier.PREMIUM_P1V3 : PricingTier.PREMIUM_P1V2);
             }
+            if (skipCreate) {
+                if (!Azure.az(AzureAppService.class).appServicePlan(appServiceConfig.servicePlanResourceGroup(), appServiceConfig.servicePlanName()).exists()) {
+                    throwForbidCreateResourceWarning("Service plan", appServiceConfig.servicePlanName());
+                }
+            }
             return new CreateOrUpdateWebAppTask(appServiceConfig).execute();
         } else {
             // todo: New CreateOrUpdateDeploymentSlotTask
@@ -78,6 +103,11 @@ private IWebAppBase<?> createOrUpdateResource() throws AzureExecutionException {
         }
     }
 
+    private static void throwForbidCreateResourceWarning(String resourceType, String name) {
+        throw new AzureToolkitRuntimeException(String.format("%s(%s) cannot be found, if you want to create please remove these maven arguments: " +
+            "`-Dazure.resource.create.skip=true` or `-DskipCreateAzureResource`.", resourceType, name));
+    }
+
     private AppServiceConfig buildDefaultConfig(String subscriptionId, String resourceGroup, String appName) {
         ComparableVersion javaVersionForProject = null;
         final String outputFileName = project.getBuild().getFinalName() + "." + project.getPackaging();