How to send an array of variables from an env.yml to serverless.yml?

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I have an env.yml file where I store some variables that should be be sent to the serverless.yml. I want to send this array of variables from the env.yml to the serverless.yml.

This. is what I have in the env.yml

securityGroupIds:[sg-xxx]
subnetIds: [subnet-xx1, subnet-xx2, subnet-xx3, subnet-xx4]

This is what I have in the serverless.yml:

vpc:
      securityGroupIds: ${file(env.yml):securityGroupIds}
      subnetIds: ${file(env.yml):securityGroupIds}

And this is what I was expecting to get inside serverless.yml when I sls print --stage dev:

vpc:
      securityGroupIds:
        - sg-xxx
      subnetIds:
        - subnet-xx1
        - subnet-xx2
        - subnet-xx3
        - subnet-xx4

It is not working. What am I doing wrong?

serverless-framework yaml arrays
1 Answers

I have found the way:

in the env.yml:

vpc-dev: {
  "securityGroupIds": [
      "sg-xxx"
  ],
  "subnetIds": [
      "subnet-xx1",
      "subnet-xx2",
      "subnet-xx3",
      "subnet-xx4"
  ]
}

vpc-prod: {
  "securityGroupIds": [
      "sg-xxxy"
  ],
  "subnetIds": [
      "subnet-xx1y",
      "subnet-xx2y",
      "subnet-xx3y",
      "subnet-xx4y"
  ]
}

in the serverless.yml

function
  hello: ...
  handler: ...
  ...  
  vpc: ${file(env.yml):vpc-${self:provider.stage}}
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