Docker Compose based Gitlab CI - Pipe error - docker

Question

The problem
I have made a project with docker compose. It works well on localhost. I want to use this base to test or analyze code with Gitlab Runner. I solved a lot of problems, like install docker compose, run and build selected containers and run commands in container. The first job ran and success (!!!), but the following jobs failed before "before_script":
Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?
...
Error response from daemon: Conflict.
...
Error response from daemon: Conflict.
I don't understand why. What do I do wrong? I repeat: the first job of the pipeline runs well with "success" message! Each other jobs of the pipeline fail.
Full output:
Running with gitlab-ci-multi-runner 9.4.0 (ef0b1a6)
on XXX Runner (fdc0d656)
Using Docker executor with image docker:latest ...
Starting service docker:dind ...
Pulling docker image docker:dind ...
Using docker image docker:dind ID=sha256:5096e5a0cba00693905879b09e24a487dc244b56e8e15349fd5b71b432c6ec9ffor docker service...
ERROR: Preparation failed: Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?
Will be retried in 3s ...
Using Docker executor with image docker:latest ...
Starting service docker:dind ...
Pulling docker image docker:dind ...
Using docker image docker:dind ID=sha256:5096e5a0cba00693905879b09e24a487dc244b56e8e15349fd5b71b432c6ec9f for docker service...
ERROR: Preparation failed: Error response from daemon: Conflict. The container name "/runner-fdc0d656-project-35-concurrent-0-docker" is already in use by container "80918876ffe53e33ce1f069e6e545f03a15469af6596852457f11dbc7a6c5b58". You have to remove (or rename) that container to be able to reuse that name.
Will be retried in 3s ...
Using Docker executor with image docker:latest ...
Starting service docker:dind ...
Pulling docker image docker:dind ...
Using docker image docker:dind ID=sha256:5096e5a0cba00693905879b09e24a487dc244b56e8e15349fd5b71b432c6ec9f for docker service...
ERROR: Preparation failed: Error response from daemon: Conflict. The container name "/runner-fdc0d656-project-35-concurrent-0-docker" is already in use by container "80918876ffe53e33ce1f069e6e545f03a15469af6596852457f11dbc7a6c5b58". You have to remove (or rename) that container to be able to reuse that name.
Will be retried in 3s ...
ERROR: Job failed (system failure): Error response from daemon: Conflict. The container name "/runner-fdc0d656-project-35-concurrent-0-docker" is already in use by container "80918876ffe53e33ce1f069e6e545f03a15469af6596852457f11dbc7a6c5b58". You have to remove (or rename) that container to be able to reuse that name.
Files
.gitlab-ci.yml
# Select image from https://hub.docker.com/r/_/php/
image: docker:latest
# Services
services:
- docker:dind
stages:
- build
- test
- deploy
cache:
key: ${CI_BUILD_REF_NAME}
untracked: true
paths:
- vendor
- var
variables:
DOCKER_CMD: docker exec --user user bin
COMPOSE_HTTP_TIMEOUT: 300
before_script:
- apk add --no-cache py-pip bash
- pip install docker-compose
- touch ~/.gitignore
- bin/docker-init.sh
- cp app/config/parameters.gitlab-ci.yml app/config/parameters.yml
- cp app/config/nodejs_parameters.yml.dist app/config/nodejs_paramteres.yml
- chmod -R 777 app/cache app/logs var
# Load only binary and mysql
- docker-compose up -d binary mysql
build:
stage: build
script:
- ${DOCKER_CMD} composer install -n
- ${DOCKER_CMD} php app/console doctrine:database:create --env=test --if-not-exists
- ${DOCKER_CMD} php app/console doctrine:migrations:migrate --env=test
codeSniffer:
stage: test
script:
- ${DOCKER_CMD} bin/php-cs-fixer fix --dry-run --config-file=.php_cs
database:
stage: test
script:
- ${DOCKER_CMD} php app/console doctrine:mapping:info --env=test
- ${DOCKER_CMD} php app/console doctrine:schema:validate --env=test
- ${DOCKER_CMD} php app/console doctrine:fixtures:load --env=test
unittest:
stage: test
script:
- ${DOCKER_CMD} bin/phpunit -c app --debug
deploy_demo:
stage: deploy
script:
- echo "Deploy to staging server"
environment:
name: staging
url: https://staging.example.com
only:
- develop
deploy_prod:
stage: deploy
script:
- echo "Deploy to production server"
environment:
name: production
url: https://example.com
when: manual
only:
- master
docker-compose.yml
version: "2"
services:
web:
image: nginx:latest
ports:
- "${HTTP_PORT}:80"
depends_on:
- mysql
- elasticsearch
- binary
links:
- binary:php
volumes:
- ".:/var/www"
- "./app/config/docker/vhost.conf:/etc/nginx/conf.d/site.conf"
- "${BASE_LOG_DIR}/nginx:/var/log/nginx"
mysql:
image: mysql:5.6
environment:
MYSQL_USER: test
MYSQL_PASSWORD: test
MYSQL_ROOT_PASSWORD: test
ports:
- "${MYSQL_PORT}:3306"
volumes:
- "${BASE_LOG_DIR}/mysql:/var/log/mysql"
- "${BASE_MYSQL_DATA_DIR}:/var/lib/mysql"
- "./app/config/docker/mysql.cnf:/etc/mysql/conf.d/mysql.cnf"
elasticsearch:
image: elasticsearch:1.7.6
ports:
- "${ELASTICSEARCH_PORT}:9200"
volumes:
- "${BASE_ELASTICSEARCH_DATA_DIR}:/usr/share/elasticsearch/data"
binary:
image: fchris82/kunstmaan-test
container_name: bin
volumes:
- ".:/var/www"
- "${BASE_LOG_DIR}/php:/var/log/php"
- "~/.ssh:/home/user/.ssh"
tty: true
environment:
LOCAL_USER_ID: ${LOCAL_USER_ID}
config.toml
[[runners]]
name = "XXX Runner"
url = "https://gitlab.xxx.xx/"
token = "xxxxxxxxxxx"
executor = "docker"
[runners.docker]
tls_verify = false
image = "docker:latest"
privileged = true
disable_cache = false
volumes = ["/var/run/docker.sock:/var/run/docker.sock", "/cache"]
shm_size = 0
[runners.cache]

Answer 1

OK, I found the problem. I spoilt the configuration. If you use dind service in .gitlab-ci.yml then don't use /var/run/docker.sock volume in config.toml file OR vica versa if you use "socket" method, don't use the dind service.
More informations: https://docs.gitlab.com/ce/ci/docker/using_docker_build.html