CODEWITHSUNDEEP
dockergitlabmaven-3gitlab-cijib
Aritz
Aritz

Reputation: 31651

Can't connect to the docker daemon while running Maven jib plugin in Gitlab CI

I'm trying to build a docker image with my application in Gitlab continuous integration using the jib Maven plugin, but I can't get the plugin connect to the docker daemon using the dind (docker-in-docker) service. Currently I'm using this configuration in my gitlab-ci.yml file:

deploy:mvn:
  image: maven:3.6.3-jdk-8-openj9
  stage: deploy
  services:
    - docker:dind
  script:
    - mvn compile jib:dockerBuild

This is the error I get:

[ERROR] Failed to execute goal com.google.cloud.tools:jib-maven-plugin:0.9.11:dockerBuild (default-cli) on project my-application: Build to Docker daemon failed, perhaps you should make sure Docker is installed and you have correct privileges to run it -> [Help 1]

UPDATE

I updated to 2.2.0 and it's running locally. I added the docker images command before and the plugin seems not to be able to find the docker command in Gitlab CI:

$ docker images && mvn compile jib:dockerBuild /bin/bash: line 97: docker: command not found

This is the configuration for the jib plugin:

<plugin>
    <groupId>com.google.cloud.tools</groupId>
    <artifactId>jib-maven-plugin</artifactId>
    <version>2.2.0</version>
    <configuration>
        <from>
            <image>adoptopenjdk/openjdk11:alpine-jre</image>
        </from>
        <to>
            <image>my-application:latest</image>
        </to>
        <container>
            <entrypoint>
                <shell>sh</shell>
                <option>-c</option>
                <arg>chmod +x /entrypoint.sh &amp;&amp; sync &amp;&amp; /entrypoint.sh</arg>
            </entrypoint>
            <ports>
                <port>8080</port>
            </ports>
            <environment>
                <SPRING_OUTPUT_ANSI_ENABLED>ALWAYS</SPRING_OUTPUT_ANSI_ENABLED>
                <JHIPSTER_SLEEP>0</JHIPSTER_SLEEP>
            </environment>
            <creationTime>USE_CURRENT_TIMESTAMP</creationTime>
        </container>
    </configuration>
</plugin>

Upvotes: 3

Views: 6816

Answers (2)

Chanseok Oh
Chanseok Oh

Reputation: 4306

the plugin seems not to be able to find the docker command in Gitlab CI:

No, it is not Jib but /bin/bash that cannot find the docker command. Even before using Jib, you don't have docker available. Take a closer look at the error message.

$ docker images && mvn compile jib:dockerBuild /bin/bash: line 97: docker: command not found

For example, on my Linux, if I try a command foo that doesn't exist in a shell script, it outputs the same message.

$ /bin/bash -c "foo && mvn -v"
/bin/bash: line 1: foo: command not found

Therefore, the following command without mvn will fail with the same error.

script:
  - docker images

This proves that either docker doesn't exist in your GitLab runtime environment or is not on the PATH environment variable.

UPDATE

Updating my answer, since you answered that you now use jib:build instead of jib:dockerBuild.

If you use jib:build, you don't even need Docker. Jib doesn't require Docker when building and pushing an image to a remote registry with jib:build. Therefore, you can completely forget about setting up Docker and remove docker:dind and export DOCKER_HOST:

mvn compile jib:build -Djib.to.auth.username=$DOCKER_REGISTRY_USER -Djib.to.auth.password=$DOCKER_REGISTRY_PWD

Upvotes: 2

Aritz
Aritz

Reputation: 31651

Finally this is the configuration I got it working with:

services:
    - docker:dind


deploy:mvn:
    image: maven:3.6.3-jdk-8-openj9
    stage: deploy
    script:
        - export DOCKER_HOST=tcp://docker:2375
        - mvn compile jib:build -Djib.to.auth.username=$DOCKER_REGISTRY_USER -Djib.to.auth.password=$DOCKER_REGISTRY_PWD
    only:
        - tags

Apart from using the Docker in Docker service I needed to establish the DOCKER_HOST environment variable and also pass the credentials to my mvn jib:build command. I stored the credentials in CI settings, as environment variables. Thanks @Chanseok Oh for your help.

See also:

Upvotes: 0

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