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Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com> Co-authored-by: qwerty287 <qwerty287@posteo.de> Co-authored-by: qwerty287 <80460567+qwerty287@users.noreply.github.com>
2.9 KiB
2.9 KiB
Advanced usage
Advanced YAML syntax
YAML has some advanced syntax features that can be used like variables to reduce duplication in your pipeline config:
Anchors & aliases
You can use YAML anchors & aliases as variables in your pipeline config.
To convert this:
steps:
- name: test
image: golang:1.18
commands: go test ./...
- name: build
image: golang:1.18
commands: build
Just add a new section called variables like this:
+variables:
+ - &golang_image 'golang:1.18'
steps:
- name: test
- image: golang:1.18
+ image: *golang_image
commands: go test ./...
- name: build
- image: golang:1.18
+ image: *golang_image
commands: build
Map merges and overwrites
variables:
- &base-plugin-settings
target: dist
recursive: false
try: true
- &special-setting
special: true
- &some-plugin codeberg.org/6543/docker-images/print_env
steps:
- name: develop
image: *some-plugin
settings:
<<: [*base-plugin-settings, *special-setting] # merge two maps into an empty map
when:
branch: develop
- name: main
image: *some-plugin
settings:
<<: *base-plugin-settings # merge one map and ...
try: false # ... overwrite original value
ongoing: false # ... adding a new value
when:
branch: main
Sequence merges
variables:
pre_cmds: &pre_cmds
- echo start
- whoami
post_cmds: &post_cmds
- echo stop
hello_cmd: &hello_cmd
- echo hello
steps:
- name: step1
image: debian
commands:
- <<: *pre_cmds # prepend a sequence
- echo exec step now do dedicated things
- <<: *post_cmds # append a sequence
- name: step2
image: debian
commands:
- <<: [*pre_cmds, *hello_cmd] # prepend two sequences
- echo echo from second step
- <<: *post_cmds
References
Persisting environment data between steps
One can create a file containing environment variables, and then source it in each step that needs them.
steps:
- name: init
image: bash
commands:
- echo "FOO=hello" >> envvars
- echo "BAR=world" >> envvars
- name: debug
image: bash
commands:
- source envvars
- echo $FOO
Declaring global variables
As described in Global environment variables, you can define global variables:
WOODPECKER_ENVIRONMENT=first_var:value1,second_var:value2
Note that this tightly couples the server and app configurations (where the app is a completely separate application). But this is a good option for truly global variables which should apply to all steps in all pipelines for all apps.