Drone provides the ability to define environment variables scoped to individual build steps. Example pipeline step with custom environment variables:

pipeline:
  build:
    image: golang
+   environment:
+     - CGO=0
+     - GOOS=linux
+     - GOARCH=amd64
    commands:
      - go build
      - go test

Please note that the environment section is not able to expand environment variables. If you need to expand variables they should be exported in the commands section.

pipeline:
  build:
    image: golang
-   environment:
-     - PATH=$PATH:/go
    commands:
+     - export PATH=$PATH:/go
      - go build
      - go test

Please be warned that ${variable} expressions are subject to pre-processing. If you do not want the pre-processor to evaluate your expression it must be escaped:

pipeline:
  build:
    image: golang
    commands:
-     - export PATH=${PATH}:/go
+     - export PATH=$${PATH}:/go
      - go build
      - go test

Questions?

We are always happy to help with questions you might have. Search our documentation or check out answers to common questions. You can also post questions or comments to our community forum.