Question 81547 in Docker Question posted in
The official documentation can be found here.

Skaffold: Cannot connect to the Docker daemon on Docker Desktop for macOS

I get the following message when I run the skaffold dev command:

Build Failed. Cannot connect to the Docker daemon at unix:
///var/run/docker.sock. Check if docker is running.

Tools versions:

  1. MacOS Desktop Docker: 4.13.0 (89412)
  2. Kubernetes: v1.25.2
  3. Skaffold: v2.0.0

Docker runs correctly in fact I can create resources on the cluster and create containers with the docker-cli commands. I successfully launch both docker info and docker version.

The command /Applications/Docker.app/Contents/MacOS/com.docker.diagnose check

reports

"No fatal errors detected."

(all tests pass).

I also tried setting the DOCKER_HOST variable:
DOCKER_HOST = /Users/<my folder>/.docker/run/docker.sock skaffold dev

Result:

invalid skaffold config: error getting docker client: unable to parse docker host `/Users/<my folder>/.docker/run/docker.sock`

My Skaffold.yaml file

apiVersion: skaffold/v3
kind: Config
metadata:
  name: test
build:
  local:
    push: false
  artifacts:
    - image: <myimage>
      context: <folder>
      docker:
        dockerfile: Dockerfile
manifests:
  rawYaml:
    - infra/k8s/deployment.yaml

How can I solve?

Tags:

2

Answers


  1. Chosen as BEST ANSWER
    0

    The solution was to set the variable DOCKER_HOST before launching the skaffold dev command:

    DOCKER_HOST="unix:///Users/<you>/.docker/run/docker.sock" skaffold dev

  2. 0

    The Docker Api use the docker.sock to communicate with the docker engine, that allow you to run commands like docker run myimage

    Usually the docker.sock is located at /var/run/docker.sock when you use docker-ce or docker.io.
    I see that you are using a desktop version of docker, so the paths are not the same anymore. and thats why skaffold can’t find the docker daemon.

    I am on Ubuntu so i found it at /home/<you>/.docker/desktop/docker.sock

    When you got the path you have to create a link :

    sudo ln -sf /home/<you>/.docker/desktop/docker.sock /var/run/docker.sock

    Use your default docker context :

    docker context use default

    and check that you indeed changed the context with :

    docker context ls

    now check if your docker client can find the docker daemon :

    docker ps -a

    if you have no errors good to run your skaffold dev

    you can also specify to skaffold to use the docker CLI:

    build:
  local:
    push: false
    useDockerCLI: true
    Login or Signup to reply.
Please signup or login to give your own answer.

Back To Top
Search