Replace yarn with npm in the pipeline

.azure/azure-pipelines.yml

@@ -139,19 +139,19 @@ stages:
     - task: Cache@2
       displayName: 'Cache node_modules'
       inputs:
-        key: node_modules | $(Agent.OS) | package.json | yarn.lock
+        key: node_modules | $(Agent.OS) | package.json | package-lock.json
         path: '$(System.DefaultWorkingDirectory)/node_modules'
       continueOnError: true
 
     - task: Cache@2
       displayName: 'Cache .next/cache'
       inputs:
-        key: next | $(Agent.OS) | package.json | yarn.lock
+        key: next | $(Agent.OS) | package.json | package-lock.json
         path: '$(System.DefaultWorkingDirectory)/.next/cache'
       continueOnError: true
 
-    - pwsh: yarn --frozen-lockfile --network-timeout=100000
-      displayName: 'yarn install'
+    - pwsh: npm install
+      displayName: 'npm install'
 
       # Use the app settings output from the ARM deployment to set environment variables that are required for our Next app build
     - task: AzureCLI@2
@@ -164,8 +164,8 @@ stages:
           $webAppSettings = (az deployment group show -n "$(DeploymentName)" -g $(AzureResourceGroup) --query properties.outputs.webAppSettings.value | ConvertFrom-Json -AsHashtable)
           foreach ($setting in $webAppSettings.GetEnumerator()) { $key=$setting.Key; $value=$setting.Value; Write-Output("##vso[task.setvariable variable=${key};]${value}") }
 
-    - pwsh: yarn build
-      displayName: 'yarn build'
+    - pwsh: npm run build
+      displayName: 'npm run build'
 
       # `node_modules` are not included in the build artifact - they will be installed on the server by a post-deployment script
     - task: CopyFiles@2
@@ -177,8 +177,8 @@ stages:
           public/**
           next.config.js
           package.json
+          package-lock.json
           server.js
-          yarn.lock
         TargetFolder: '$(DistDirectory)'
 
       # These files are required by the app service to run the Next app under IIS, and include the post-deployment script mentioned in the previous task

.azure/web-app/deploy.cmd

@@ -2,7 +2,7 @@
 
 :: ----------------------
 :: KUDU Deployment Script
-:: Version: 1.0.9
+:: Version: 1.0.17
 :: ----------------------
 
 :: Prerequisites
@@ -97,15 +97,10 @@ IF /I "%IN_PLACE_DEPLOYMENT%" NEQ "1" (
 :: 2. Select node version
 call :SelectNodeVersion
 
-:: 3. Install Yarn
-echo Verifying Yarn Install.
-call :ExecuteCmd !NPM_CMD! install yarn -g
-
-:: 4. Install Yarn packages
-echo Installing Yarn Packages.
+:: 3. Install npm packages
 IF EXIST "%DEPLOYMENT_TARGET%\package.json" (
   pushd "%DEPLOYMENT_TARGET%"
-  call :ExecuteCmd C:\local\AppData\npm\yarn install --frozen-lockfile --production --network-timeout=100000
+  call :ExecuteCmd !NPM_CMD! install --production
   IF !ERRORLEVEL! NEQ 0 goto error
   popd
 )
@@ -135,4 +130,4 @@ exit /b 1
 
 :end
 endlocal
-echo Finished successfully.
+echo Finished successfully.