Question 39158 in Ubuntu Question posted in
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Environment variables in github actions – Ubuntu

I want to pass maven image version as as env variable but when i am trying to access that env.MAVEN_VERSION variable getting error

Error- The workflow is not valid. .github/workflows/Merge.yaml (Line: 13 image:) Unrecognized named-value: ‘env’. Located at position 1 within expression: env.MAVEN_VERSION

Yaml File —

on:
  push:
    branches: [ master ]

env:
  MAVEN_VERSION: maven:3.8.6-jdk-11
  
jobs:
  build:
    runs-on: ubuntu-latest
    container:
      image: ${{ env.MAVEN_VERSION }}
    steps:
    - name: Env Variable
      run: echo ${{ env.MAVEN_VERSION }}
Tags:

2

Answers


  1. 0

    when i am trying to access that…

    That’s not what the error is telling you about. The error Unrecognized named-value: 'env' is telling you that GitHub is not recognizing the YAML you wrote at line 13. It’s a syntax error.

    In a GitHub workflow you can use env either in jobs.<job_id>.env or in jobs.<job_id>.steps[*].env. See here for details.

    This YAML should work:

    on:
  push:
    branches: [ master ]

jobs:
  build:
    runs-on: ubuntu-latest
    container:
      image: ${{ env.MAVEN_VERSION }}
    steps:
      - name: Env Variable
        env:
          MAVEN_VERSION: maven:3.8.6-jdk-11
        run: echo ${{ env.MAVEN_VERSION }}

    Also, note that when you only specify a container image, you can omit the image keyword.

    Login or Signup to reply.
  2. 0

    While env is not available, outputs from previous jobs are.
    Consider the following example

    on:
  push:
    branches: [ master ]

env:
  MAVEN_VERSION: maven:3.8.6-jdk-11
  
jobs:
  prepare-image:
    runs-on: ubuntu-latest
    outputs:
      image: ${{ env.MAVEN_VERSION }}

  build:
    runs-on: ubuntu-latest
    needs: [prepare-image]
    container:
      image: ${{ needs.prepare-image.outputs.image }}
    steps:
    - name: Echo output
      run: echo ${{ needs.prepare-image.outputs.image }}
    Login or Signup to reply.
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