How to pass environment variable file to the action?

[binjiezhao-alcumus]

We need to pass environment variable file stored in S3 to the render action. See this aws doc:
https://docs.aws.amazon.com/AmazonECS/latest/developerguide/taskdef-envfiles.html

How do we do it?

[LiJell]

"containerDefinitions": [
      ...
   "environmentFiles": [
          {
            "value": "arn:aws:s3:::environment.env",
            "type": "s3"
          }
        ],
      ...
]

like above under containerDefinitions

is this what you mean?

[binjiezhao-alcumus]

Yes exactly.
We have an env file for each environment: dev, test etc. Currently this is solved by an extra bash step to replace the file name for env.

[ctjhoa]

If I'm not mistaken, this feature is already implemented but not documented.
a55093e#diff-1243c5424efaaa19bd8e813c5e6f6da46316e63761421b3e5f5c8ced9a36e6b6R32
From my understanding you can specify each arn like this:

        uses: aws-actions/amazon-ecs-render-task-definition@v1
        with:
          task-definition: ${{ vars.FARGATE_TASK_DEFINITION }}
          container-name: ${{ vars.FARGATE_CONTAINER_NAME }}
          image: ${{ secrets.ECR_IMAGE_NAME }}
          env-files: |
            arn:aws:s3:::s3_bucket_name/envfile1_object_name.env
            arn:aws:s3:::s3_bucket_name/envfile2_object_name.env