Docker in docker (Mount docker.sock) not work correct and hang up

Drone Support
1

Hi, I tried to use docker in docker under k8s, the job will stuck without any output or log

Here is the pipeline

---
kind: pipeline
name: deploy

steps:
  - name: build-production-image
    image: docker:dind
    volumes:
      - name: docker
        path: /var/run/docker.sock
    commands:
      - docker -v
    privileged: true
    debug: true
volumes:
- name: docker
  host:
    path: /var/run/docker.sock

I’m sure docker.sock exists on host machine, also I checked the k8s job, there is no mount volume, is there something wrong with my config?

$ kubectl describe jobs.batch drone-job-69-bdovgsbqylrlrbxnp

Name:           drone-job-69-bdovgsbqylrlrbxnp
Namespace:      default
Selector:       controller-uid=032a9c92-4bf5-11e9-b2e5-00163e062454
Labels:         controller-uid=032a9c92-4bf5-11e9-b2e5-00163e062454
                job-name=drone-job-69-bdovgsbqylrlrbxnp
Annotations:    io.core.build.id: 74
                io.core.repo.id: 26
                io.core.stage.arch: amd64
                io.core.stage.created: 2019-03-21 16:18:49 +0000 UTC
                io.core.stage.id: 69
                io.core.stage.number: 1
                io.core.stage.os: linux
                io.core.stage.scheduled: 2019-03-21 16:18:50.364858784 +0000 UTC m=+31249.868014913
                io.drone: true
Parallelism:    1
Completions:    1
Start Time:     Fri, 22 Mar 2019 00:18:50 +0800
Pods Statuses:  1 Running / 0 Succeeded / 0 Failed
Pod Template:
  Labels:  controller-uid=032a9c92-4bf5-11e9-b2e5-00163e062454
           job-name=drone-job-69-bdovgsbqylrlrbxnp
  Containers:
   drone-controller:
    Image:      drone/controller:1.0.0-rc.6
    Port:       <none>
    Host Port:  <none>
    Environment:
      DRONE_LOGS_DEBUG:            false
      DRONE_RPC_HOST:              ci.mydomain.com
      DRONE_LIMIT_CPU:             0
      DRONE_STAGE_ID:              69
      DRONE_RPC_SECRET:            XXX
      DRONE_REGISTRY_SKIP_VERIFY:  false
      DRONE_LOGS_PRETTY:           false
      DRONE_LOGS_TEXT:             false
      DRONE_RPC_DEBUG:             false
      DRONE_SECRET_ENDPOINT:       http://drone-secrets-service
      DRONE_SECRET_SECRET:         XXX
      DRONE_LIMIT_MEM:             0
      DRONE_LOGS_TRACE:            false
      DRONE_RPC_PROTO:             https
      DRONE_SECRET_SKIP_VERIFY:    false
      KUBERNETES_NODE:              (v1:spec.nodeName)
      DRONE_RUNNER_NAME:            (v1:spec.nodeName)
    Mounts:                        <none>
  Volumes:                         <none>
Events:
  Type    Reason            Age    From            Message
  ----    ------            ----   ----            -------
  Normal  SuccessfulCreate  2m25s  job-controller  Created pod: drone-job-69-bdovgsbqylrlrbxnp-cx2dn
2

Finally I boot a docker daemon in docker to fixed this, here is my config for refer

  - name: dind
    image: plugins/docker
    environment:
      DOCKER_PASSWORD:
        from_secret: DOCKER_PASSWORD
    commands:
      - docker -v
      - nohup dockerd &
      - docker login -u allovince -p $${DOCKER_PASSWORD}
      - docker pull xxx
      - docker push xxx
    privileged: true