Using spring-boot:build-image in Gitlab-ci.yaml Pipeline to create a docker image

user_11618200 0
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I am trying to build the docker image of a Spring Boot application in Gitlab-ci.yaml (Pipeline) by using the command "spring-boot:build-image" with out using Dockerfile. The command is working fine on terminal development work station. But the CI/CD Pipeline of Gitlab is throwing the error. Appreciate if any one can help.

[ERROR] Failed to execute goal org.springframework.boot:spring-boot-maven-plugin:2.6.4:build-image (default-cli) on project buildpackdemo: Execution default-cli of goal org.springframework.boot:spring-boot-maven-plugin:2.6.4:build-image failed: Connection to the Docker daemon at 'localhost' failed with error "[2] No such file or directory"; ensure the Docker daemon is running and accessible: com.sun.jna.LastErrorException: [2] No such file or directory -> [Help 1]

Gitlab-ci.yaml

maven-build:
  image: maven:3-jdk-11
  stage: build
  script:
    - "mvn spring-boot:build-image"
  artifacts:
    paths:
      - target/*.jar
spring-boot gitlab-ci maven
2 Answers

You must use the Docker in Docker service to build your image and add it via services:

maven-build:
  image: maven:3-jdk-11
  stage: build
  services:
    - docker:dind
  script:
    - "mvn spring-boot:build-image"
  artifacts:
    paths:
      - target/*.jar
user_46208220

I was running into the same issue, and I was finally able to get it working by setting the DOCKER_HOST variable. So, things would look something like this:

variables:
  DOCKER_HOST: tcp://docker:2375

maven-build:
  image: maven:3-jdk-11
  stage: build
  services:
    - docker:dind
  script:
    - "mvn spring-boot:build-image"
  artifacts:
    paths:
      - target/*.jar
user_10149790
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