Build and push a docker image with build arguments from DevOps to ACR

Question

I'm building a docker image in an Azure DevOps pipeline, then I want to push it to the Azure Container registry. The registry is already created and I've configured DevOps to use it, also the buildAndPush Docker task works.

However, since the Docker build can be parametrized, I want to pass arguments to it and I can't do it using the buildAndPush Docker task. So I've decided to do it in two steps, one for building and the other one for pushing. This way:

# Docker
# Build and push an image to Azure Container Registry
# https://docs.microsoft.com/azure/devops/pipelines/languages/docker
trigger: none

resources:
- repo: self

variables:
  # Container registry service connection established during pipeline creation
  dockerRegistryServiceConnection: 'aaaa-aaaa-aaaa-aaaa-aaaaa'
  imageRepository: 'ubuntu-qt'
  containerRegistry: 'myregistry.azurecr.io'
  dockerfilePath: '$(Build.SourcesDirectory)/docker-qt-build/Dockerfile'
  
  # Agent VM image name
  vmImageName: 'ubuntu-latest'

stages:
- stage: BuildPush
  displayName: Build and push
  jobs:  
  - job: Build
    displayName: Build
    pool:
      vmImage: $(vmImageName)
    steps:
    - task: Docker@2
      displayName: Build ubuntu with qt 5.12.4 installed
      inputs:
        command: build
        repository: $(imageRepository)
        dockerfile: $(dockerfilePath)
        tags: 5.12.4
        arguments: '--build-arg ubuntu_version=18.04 --build-arg qt_version_major=5.12 --build-arg qt_version_full=5.12.4'
    - task: Docker@2
      displayName: Push ubuntu with qt 5.12.4 installed
      inputs:
        command: push
        repository: $(imageRepository)
        containerRegistry: $(dockerRegistryServiceConnection)
        tags: myregistry.azurecr.io/ubuntu-qt:5.12.4

Even if the build task works well, it doesn't seem to be able to find the image for pushing to the registry:

Starting: Push ubuntu with qt 5.12.4 installed
==============================================================================
Task         : Docker
Description  : Build or push Docker images, login or logout, or run a Docker command
Version      : 2.170.2
Author       : Microsoft Corporation
Help         : https://aka.ms/azpipes-docker-tsg
==============================================================================
/usr/bin/docker images
/usr/bin/docker push ***/ubuntu-qt:***/ubuntu-qt:5.12.4
invalid reference format
##[error]invalid reference format
##[error]The process '/usr/bin/docker' failed with exit code 1
REPOSITORY                                           TAG                 IMAGE ID            CREATED             SIZE
ubuntu-qt                                            5.12.4              e5aeb1027823        2 seconds ago       6.64GB
ubuntu                                               18.04               2eb2d388e1a2        12 days ago         64.2MB
node                                                 10                  5010eb9431a5        2 weeks ago         911MB
node                                                 12                  dfbb88cfffc8        2 weeks ago         918MB
buildpack-deps                                       stretch             42d486287f16        2 weeks ago         835MB
debian                                               9                   5df937d2ac6c        2 weeks ago         101MB
debian                                               8                   72f79d3cb645        2 weeks ago         129MB
node                                                 10-alpine           8e473595b853        2 weeks ago         83.5MB
node                                                 12-alpine           057fa4cc38c2        5 weeks ago         89.3MB
jekyll/builder                                       latest              12489946feab        7 weeks ago         674MB
alpine                                               3.9                 78a2ce922f86        3 months ago        5.55MB
alpine                                               3.10                be4e4bea2c2e        3 months ago        5.58MB
alpine                                               3.8                 c8bccc0af957        6 months ago        4.41MB
ubuntu                                               14.04               6e4f1fe62ff1        7 months ago        197MB
alpine                                               3.7                 6d1ef012b567        17 months ago       4.21MB
mcr.microsoft.com/azure-pipelines/node8-typescript   latest              9a948d360778        22 months ago       595MB

    Finishing: Push ubuntu with qt 5.12.4 installed

Try specifying containerRegistry in the build step as well and use 5.12.4 for tags in the push step (instead of myregistry.azurecr.io/ubuntu-qt:5.12.4). — h3yduck
@h3yduck This worked, thank you. If you want to write an answer I'll be happy to accept it. — Xtreme Biker

h3yduck h3yduck · Accepted Answer · 2020-08-06T12:41:10

Specify containerRegistry in the build step as well and use 5.12.4 for tags in the push step (instead of myregistry.azurecr.io/ubuntu-qt:5.12.4).

Like this:

steps:
- task: Docker@2
  displayName: Build ubuntu with qt 5.12.4 installed
  inputs:
    command: build
    repository: $(imageRepository)
    containerRegistry: $(dockerRegistryServiceConnection)
    dockerfile: $(dockerfilePath)
    tags: 5.12.4
    arguments: '--build-arg ubuntu_version=18.04 --build-arg qt_version_major=5.12 --build-arg qt_version_full=5.12.4'
- task: Docker@2
  displayName: Push ubuntu with qt 5.12.4 installed
  inputs:
    command: push
    repository: $(imageRepository)
    containerRegistry: $(dockerRegistryServiceConnection)
    tags: 5.12.4

Build and push a docker image with build arguments from DevOps to ACR

1 Answers