Mount host volume to container

[sever-sever]

It is not clear how to use volumes, or maybe it is a bug I start the gitness container and mount /tmp/foo to container

docker run -d \
  -p 3000:3000 \
  -v /var/run/docker.sock:/var/run/docker.sock \
  -v /opt/gitness:/data \
  -v /tmp/foo:/tmp \
  --name gitness \
  --restart always \
  harness/gitness

The goal is to get artifacts from the container to the host system. I can't get it working and tried several ways.

Pipeline:

kind: pipeline
spec:
  stages:
    - type: ci
      spec:
        steps:
          - name: step01
            type: run
            spec:
              container:
                image: alpine:3
                pull: if-not-exists
              volumes:
                - name: tmp
                  spec: host
                  path: /tmp/foo
              script: |-
                echo "example" > /tmp/foo.txt
                ls -la /tmp
                echo "# content of /tmp/foo.txt"
                cat /tmp/foo.txt

volumes:
- type: volume
  spec: host
  spec:
    path: /tmp/foo

I can see it in the container:

step01
+ echo "example" > /tmp/foo.txt\nls -la /tmp\necho "# content of /tmp/foo.txt"\ncat /tmp/foo.txt total 12 drwxrwxrwt 1 root root 4096 Jan 7 17:45 . drwxr-xr-x 1 root root 4096 Jan 7 17:45 .. -rw-r--r-- 1 root root 8 Jan 7 17:45 foo.txt # content of /tmp/foo.txt example 

But I don't see this file from the host who starts container gitness

sever@sever:~/scripts/other/gitness$ ls -la /tmp/foo/
total 16
drwxr-xr-x 2 root root  4096 Jan  7 19:44 .
drwxrwxrwt 8 root root 12288 Jan  7 19:45 ..
sever@sever:~/scripts/other/gitness$ 

I would be grateful if this is possible.

[sever-sever]

I spent several days, and it doesn't work for some reason. I tried --privileged as in host as in the pipeline, I tried sudo I try ~10-15 variants of config

volumes:
- type: volume
  name: vol
  spec: host
  path: /tmp/foo:/tmp/foo

kind: pipeline
type: docker
name: default
steps:
  - name: hello
    privileged: true
    image: alpine:3
    volume:
      name: vol
      path:
        /tmp/foo
    commands:
      - mkdir /tmp/foo
      - ls -la
      - cat /etc/os-release
      - touch /tmp/foo/example.txt

I can't get it working. I just want to ask, is it possible at all or should we don't do it anymore? There is no information about it. And Slack it seems requires only accounts with a harness domain, impossible to register with other mails.

As I understand it is just not implemented. If you need any debug or help with this implementation let me know. I can contribute if you point me to at least the part of the code where I should look. As a workaround with scp looks really ugly.

Thanks.

[AlexanderZvyagin]

I also tried using 'mount'. No success.