Using matrix jobs
Cloud Server v3.x Matrix jobs provide a way to run a job multiple times with arguments. Arguments are supplied using parameters. There are many uses for this feature, including testing on multiple operating systems and against different language/library versions.
Use matrix jobs to run multiple OS tests
In the following example the test job is run across a Linux Docker container, Linux VM, and macOS environments, using two different versions of Node.js. On each run of the test job different parameters are passed to set both the OS and the Node.js version:
version: 2.1
orbs:
node: circleci/node@4.7
executors:
docker: # Docker using the Base Convenience Image
docker:
- image: cimg/base:stable
auth:
username: mydockerhub-user
password: $DOCKERHUB_PASSWORD # context / project UI env-var reference
linux: # a Linux VM running Ubuntu 20.04
machine:
image: ubuntu-2004:202107-02
macos: # macos executor running Xcode
macos:
xcode: 12.5.1
jobs:
test:
parameters:
os:
type: executor
node-version:
type: string
executor: << parameters.os >>
steps:
- checkout
- node/install:
node-version: << parameters.node-version >>
install-yarn: true
workflows:
all-tests:
jobs:
- test:
matrix:
parameters:
os: [docker, linux, macos]
node-version: ["14.17.6", "16.9.0"]List jobs that will run
The expanded version of this matrix runs the following list of jobs under the all-tests workflow:
- test-14.17.6-docker
- test-16.9.0-docker
- test-14.17.6-linux
- test-16.9.0-linux
- test-14.17.6-macos
- test-16.9.0-macosNext steps
For full details of the matrix jobs specification, see the Configuration Reference.
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