Pipeline to import a custom image into an ACR (#1575)

Author: mthalman

eng/pipelines/import-image.yml

@@ -0,0 +1,47 @@
+# Imports an image from a 3rd party registry to the public mirror registry
+
+trigger: none
+pr: none
+
+parameters:
+- name: imageName
+  displayName: Image name to be imported (for Docker Hub, use <repo>:<tag>; for others, use <registry>/<repo>:<tag>)
+  type: string
+- name: isDockerHubImage
+  displayName: Is the image from Docker Hub?
+  type: boolean
+  default: true
+
+variables:
+- template: /eng/pipelines/templates/variables/common.yml@self
+- ${{ if eq(parameters.isDockerHubImage, 'true') }}:
+  - name: normalizedImageName
+    value: ${{ format('docker.io/{0}', parameters.imageName) }}
+  - name: extraImportOptions
+    value: --username $(dotnetDockerHubBot.userName) --password $(BotAccount-dotnet-dockerhub-bot-PAT)
+- ${{ else }}:
+  - name: normalizedImageName
+    value: ${{ parameters.imageName }}
+  - name: extraImportOptions
+    value: ''
+
+extends:
+  template: /eng/common/templates/1es-official.yml@self
+  parameters:
+    stages:
+    - stage: Import
+      jobs:
+      - job: Import
+        steps:
+        - template: /eng/common/templates/steps/run-pwsh-with-auth.yml@self
+          parameters:
+            displayName: Import image
+            serviceConnection: $(public-mirror.serviceConnectionName)
+            command: >
+              az acr import
+              --subscription $(public-mirror.subscription)
+              --resource-group $(public-mirror.resourceGroup)
+              --name $(public-mirror.server)
+              --source $(normalizedImageName)
+              --image ${{ parameters.imageName }}
+              $(extraImportOptions)