sidecar-dind.yaml

# sidecar-dind (dind is an acronym for docker-in-docker) demonstrates
# the ability to run docker commands (e.g. `docker run`, `docker build`)
# from within a container, by running the docker daemon as a sidecar to
# the main container.
apiVersion: argoproj.io/v1alpha1
kind: Workflow
metadata:
  generateName: sidecar-dind-
spec:
  entrypoint: dind-sidecar-example
  templates:
  - name: dind-sidecar-example
    container:
      image: docker:19.03.13
      command: [sh, -c]
      args: ["until docker ps; do sleep 3; done; docker run --rm debian:latest cat /etc/os-release"]
      env:
      - name: DOCKER_HOST
        value: 127.0.0.1
    sidecars:
    - name: dind
      image: docker:19.03.13-dind
      command: [dockerd-entrypoint.sh]
      env:
        - name: DOCKER_TLS_CERTDIR
          value: ""
      securityContext:
        privileged: true
      # mirrorVolumeMounts will mount the same volumes specified in the main container
      # to the sidecar (including artifacts), at the same mountPaths. This enables
      # dind daemon to (partially) see the same filesystem as the main container in
      # order to use features such as docker volume binding.
      mirrorVolumeMounts: true