GitLab CI: UI Testing with Selenium - docker

Question

I have built some UI tests for my application using Selenium and PyTest. I want to automate these tests by integrating the in the GitLab CI. As the latter is docker-based and I am building by UI using a docker-compose script, I need docker in docker (docker:dind) capabilities besides Firefox, Selenium and Python.
My current gitlab-ci.yml looks like this:
ui_test:
stage: Build_and_Test
image:
name: ${CI_DEPENDENCY_PROXY_GROUP_IMAGE_PREFIX}/docker/compose
entrypoint: [ '/bin/sh', '-c' ]
services:
- name: ${CI_DEPENDENCY_PROXY_GROUP_IMAGE_PREFIX}/docker:dind
alias: docker
- selenium/standalone-firefox:latest
variables:
GET_SOURCES_ATTEMPTS: 1
DOCKER_HOST: tcp://docker:2375/
DOCKER_DRIVER: overlay2
DOCKER_TLS_CERTDIR: ''
PROXY_REGISTRY_PREFIX: '${CI_DEPENDENCY_PROXY_GROUP_IMAGE_PREFIX}/'
before_script:
- apk add --update --no-cache bash git openssh gcc musl-dev g++ make build-base libffi-dev python3-dev libressl-dev python3 wget tar npm
- apk --no-cache add --repository http://dl-cdn.alpinelinux.org/alpine/edge/community firefox
- echo which firefox
- python3 -m ensurepip
- wget https://github.com/mozilla/geckodriver/releases/download/v0.31.0/geckodriver-v0.31.0-linux64.tar.gz
- tar -xvf geckodriver-v0.31.0-linux64.tar.gz
- chmod +x geckodriver
- export PATH=$PATH:/builds/$CI_PROJECT_NAMESPACE/$CI_PROJECT_NAME
script:
- docker login -u "$CI_DEPENDENCY_PROXY_USER" -p "$CI_DEPENDENCY_PROXY_PASSWORD" "$CI_DEPENDENCY_PROXY_SERVER"
- alias python=python3
- echo 'alias python=python3' >> ~/.bashrc
- source ~/.bashrc
- python3 -m pip install --upgrade pip setuptools wheel
- python3 -m pip install --no-cache-dir --upgrade cryptography requests webdriver-manager
- python3 -m pip install --no-cache-dir --upgrade pytest
- python3 -m pip install --no-cache-dir --upgrade pytest-asyncio
- python3 -m pip install --no-cache-dir selenium==4.1.5
- mkdir -p ./test_output
- ./docker/build_hdssl_mock.sh
- ./docker/start_hdssl_mock.sh & cd ui & npm run serve & python3 -m pytest hdssl_control/tests/acceptance_tests
rules:
- if: $CI_COMMIT_BRANCH == $CI_DEFAULT_BRANCH || $CI_PIPELINE_SOURCE == "merge_request_event" || $CI_COMMIT_BRANCH == "develop"
The problem here is that Firefox requires all kinds of dependencies that I do not know how to install in Alpine:
ERROR: unsatisfiable constraints:
so:libcjson.so.1 (missing):
required by: librist-0.2.6-r1[so:libcjson.so.1]
so:libmbedcrypto.so.7 (missing):
required by: librist-0.2.6-r1[so:libmbedcrypto.so.7]
so:libffi.so.8 (missing):
required by: firefox-101.0.1-r0[so:libffi.so.8]
so:libicui18n.so.71 (missing):
required by: firefox-101.0.1-r0[so:libicui18n.so.71]
so:libicuuc.so.71 (missing):
required by: firefox-101.0.1-r0[so:libicuuc.so.71]
Any help is greatly appreciated.