CODEWITHSUNDEEP
circlecicircleci-2.0
saw303
saw303

Reputation: 9072

Run CircleCI 2.0 build using several JDKs

I would like to run my Circle CI 2.0 build using Open JDK 8 & 9. Are there any YAML examples available explaining how to build a Java project using multiple JDK versions?

Currently I trying to add an new job java-8 to my build. But I do not want to repeat all the step of my default Java 9 build job. Is there a DRY approach for this?

version: 2
jobs:
  build:
    docker:
      # specify the version you desire here
      - image: circleci/openjdk:9-jdk

    working_directory: ~/repo

    environment:
      # Customize the JVM maximum heap limit
      JVM_OPTS: -Xmx1g
      TERM: dumb

    steps:
      - checkout

      # Run all tests
      - run: gradle check

  java-8:
    - image: circleci/openjdk:8-jdk

Upvotes: 2

Views: 822

Answers (2)

Jin Kwon
Jin Kwon

Reputation: 21976

I'm sharing my own solution for this problem.

The basic routing is using workflows

version: 2
jobs:
  jdk8:
    docker:
      - image: circleci/openjdk:8-jdk-stretch
    steps:
      - ...
  jdk11:
    docker:
      - image: circleci/openjdk:11-jdk-stretch
    steps:
      - ...
workflows:
  version: 2
  work:
    jobs:
      - jdk8
      - jdk11

Now we can use the way explained on the accepted anser.

version: 2
shared: &shared
  steps:
    - checkout
    - restore_cache:
        key: proguard-with-maven-example-{{ checksum "pom.xml" }}
    - run: mvn dependency:go-offline
    - save_cache:
        paths:
          - ~/.m2
        key: proguard-with-maven-example-{{ checksum "pom.xml" }}
    - run: mvn package
jobs:
  jdk8:
    docker:
      - image: circleci/openjdk:8-jdk-stretch
    <<: *shared
  jdk11:
    docker:
      - image: circleci/openjdk:11-jdk-stretch
    <<: *shared
workflows:
  version: 2
  work:
    jobs:
      - jdk8
      - jdk11

Upvotes: 1

ndintenfass
ndintenfass

Reputation: 124

You can use YAML anchors to achieve a reasonable DRY approach. For instance, it might look like: 

  version: 2
  shared: &shared
    working_directory: ~/repo
    environment:
      # Customize the JVM maximum heap limit
      JVM_OPTS: -Xmx1g
      TERM: dumb
    steps:
      - checkout
      # Run all tests
      - run: gradle check

  jobs:
    java-9:
      docker:
        - image: circleci/openjdk:9-jdk
      <<: *shared

    java-8:
      docker:
        - image: circleci/openjdk:8-jdk
      <<: *shared

Upvotes: 6

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