I'm trying to mount a dir from the app container (image is built in another job to cache and then downloaded) to host (GHA self-hosted worker) to get files created by the app during tests.
The setup is following:
action for spinning up my containers:
name: Prepare backend
description: Prepare and start docker compose for backend
inputs:
...
runs:
using: composite
steps:
- name: Download back
uses: actions/download-artifact@v2
with:
name: app-back
path: /tmp
- name: Load Docker image
shell: bash
run: |
docker load --input /tmp/app-back.tar
- name: Create export dir
shell: bash
run: mkdir /tmp/export
- name: Start Compose
shell: bash
env:
run: docker compose -f ./ci/docker-compose-ci.yml up -d
- name: Wait Compose
shell: bash
run: |
pip install docker-compose-wait
docker-compose-wait -f ./ci/docker-compose-ci.yml -w -t 7m
docker inspect app-back # debugging to see actual mounts
docker-compose-ci.yml
version: '3.3'
services:
...
back:
image: app-back
environment:
...
volumes:
- /tmp/export:/tmp/export
# other containers for app env
...
workflow.yml
jobs:
...
tests:
name: Run tests
runs-on: [ self-hosted, default ]
needs:
- build-app-image
steps:
- name: Setup Environment
uses: actions/checkout@v2
- name: Start backend
uses: ./ci/actions/prepare-back
- name: Run tests
run: tox -e ci
- name: Stop Compose
if: ${{ always() }}
run: docker compose -f ./ci/docker-compose-ci.yml down
The directory in host is created before compose start and I see it's there during test run, the directory in container is also there and I see files are created in container's logs, but host's directory is empty anyway. I tried adding chmod 777 /tmp/export at host but it didn't help.
Docker inspect also shows that the directory is mounted:
"Mounts": [
***
"Type": "bind",
"Source": "/tmp/export",
"Destination": "/tmp/export",
"Mode": "rw",
"RW": true,
"Propagation": "rprivate"
***
],
Am I missing something?
