Hi,
I’m a DevOps team member and I need to create a GitLab CI that when created a tag, builds the related Docker image and loads it on the repository.
Unfortunately, I have encountered this issue and I have really no idea how to fix it.
For context, this is my .gitlab-ci.yml file:
image: docker.nexus.consorziometis.it/ci-cd/jmix2-jdk21:latest
variables:
SONAR_USER_HOME: "${CI_PROJECT_DIR}/.sonar" # Defines the location of the analysis task cache
GIT_DEPTH: "0" # Tells git to fetch all the branches of the project, required by the analysis task
stages:
- build-sonar
- build-docker
build-sonar:
stage: build-sonar
cache:
policy: pull-push
key: "sonar-cache-$CI_COMMIT_REF_SLUG"
paths:
- "${SONAR_USER_HOME}/cache"
- sonar-scanner/
script: gradle build sonar
allow_failure: true
rules:
- if: $CI_PIPELINE_SOURCE == 'merge_request_event'
- if: $CI_COMMIT_BRANCH == 'master'
- if: $CI_COMMIT_BRANCH == 'main'
build-container:
stage: build-docker
services:
- docker:dind
variables:
DOCKER_HOST: tcp://docker:2375/
script:
- GRADLE_OPTS="-Xms1g -Xmx4g" gradle -Pvaadin.productionMode=true bootBuildImage --no-build-cache
- docker login --username $NEXUS_USER --password $NEXUS_PASS
rules:
- if: $CI_COMMIT_TAG
(the script part is not complete cos I have encountered the issue at the first command)
When the build heads to the final part, I get this error:
Execution failed for task ':bootBuildImage'.
> Connection to the Docker daemon at 'tcp://docker:2375/' failed with error "No such file or directory"; ensure the Docker daemon is running and accessible
Which to makes no sense cos the docker:dind service is there, all the possible needed variables are set.
I will also put the Dockerfile content here in case it’s needed:
FROM docker:latest
# Install dependencies
RUN apk add --no-cache bash curl unzip openjdk21 nodejs npm
# Set Gradle version (for future clarity only)
ENV GRADLE_VERSION=8.12.1
ENV GRADLE_HOME=/usr/local/gradle/gradle-8.12.1
ENV PATH="${GRADLE_HOME}/bin:${PATH}"
# Install Gradle (don't rely on ENV vars in RUN for versioned paths)
RUN mkdir -p /usr/local/gradle && \
curl -fSL -o /tmp/gradle.zip https://services.gradle.org/distributions/gradle-8.12.1-bin.zip && \
unzip /tmp/gradle.zip -d /usr/local/gradle && \
ln -s /usr/local/gradle/gradle-8.12.1/bin/gradle /usr/bin/gradle && \
rm /tmp/gradle.zip
# Test Gradle
RUN gradle --version
Does someone have any clue of what i’m doing wrong?
Thank you in advance!