CODEWITHSUNDEEP
dockerazure-devopsdocker-buildkit
Jürgen Schuch
Jürgen Schuch

Reputation: 81

Using Docker Buildkit on Azure with az acr build

i'm looking for a way to use the docker buildkit with az acr build. I know that its possible with azure pipeline but how to use it with the azure cli?

Regards, Jürgen

Upvotes: 7

Views: 996

Answers (2)

jcmcclurg
jcmcclurg

Reputation: 66

To clarify a bit on what 0gis0 said, and to confirm that it is indeed a working solution, the steps to use buildkit with az acr cli are as follows. At the time of posting, you cannot do it via ac acr build, but instead must use az acr run:

  1. Create a Dockerfile, using some feature only available in buildkit. For example, cache mounting:

    # syntax = docker/dockerfile:1.2

# See https://vsupalov.com/buildkit-cache-mount-dockerfile/ for details
FROM ghcr.io/linuxcontainers/debian-slim:latest

RUN rm -f /etc/apt/apt.conf.d/docker-clean
RUN --mount=type=cache,target=/var/cache/apt \
    apt-get update && \
    apt-get install -yqq --no-install-recommends \
     cowsay && rm -rf /var/lib/apt/lists/*

CMD [ "cowsay", "moo" ]

  2. Create an acr task file, setting DOCKER_BUILDKIT=1 in the environment of the acr build step. Make sure you specify a push step if you want to push, and make good use of dynamic task variables. Call this file something like acr-task.yml:

    version: v1.1.0
steps:
  - build: -t $Registry/{{.Values.image}} .
    env: 
      - DOCKER_BUILDKIT=1
  - push: 
    - "$Registry/{{.Values.image}}"

  3. Run the file on acr, making sure to set the variable(s) you need for the acr task file:

    az acr run -f acr-task.yml --registry <YOUR_REGISTRY> --set image="<REPO>:<TAG>" .

Upvotes: 0

0gis0
0gis0

Reputation: 39

You can use multi-step tasks in ACR in order to set DOCKER_BUILD=1 like this:

version: v1.1.0
steps:
  - build: -t $Registry/backstage:$ID -f packages/backend/Dockerfile .
    env: 
      - DOCKER_BUILDKIT=1
  - push: 
    - "$Registry/backstage:$ID"

I wrote an article about this (But It's in Spanish ☺️): https://www.returngis.net/2024/05/como-construir-una-imagen-en-azure-container-registry-usando-buildkit/

Hope it helps!

Upvotes: 0

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