Merging environment configs

Serverless Framework
1

I have the following:

provider:
  environment: ${file(env.yml):${self:provider.stage}}

and in my env.yml I have the following:

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As you can see it gets very repetitive duplicating variables into each stage. Is there a way I can have a second file for globals that I can merge with this file somehow? That way I can remove duplicates from each stage.

2

YAML allows:

default_env: &default_env
  SCOPE: 'read'
  TABLE: 'apple'

dev:
  <<: *default_env
  TABLE: 'banana'
  PASSWORD: 'my-password'

If you want the longer version I wrote it here

3 Likes
3

Perfect, thank you!!

4

The better solution will be to use SSM parameters. It will help not only for yml file but also it will allow you to share variables between multiple serverless projects / lambda functions.
Following link might help you.

5

hey @buggy and @dhavalyours,

Thanks for your answers I am using following for my service level environment which will be shared across functions.

environment: ${ssm:/aws/reference/secretsmanager/myServiceEnv~true}

How can I add additional env variables which are not in my secrets manager or something I want to generate through serverless opts. example:

environment: 
    TABLE_NAME: ${self:provider.stage}-${self:service}
    VAR2: "Value"

How to merge both so that I have secrets from secrets manager and additional variables provided in serverless.yml?

# outcome
environment: 
    SECRET: "From Secrets Manager" 
    TABLE_NAME: ${self:provider.stage}-${self:service}
    VAR2: "Value"

I tried merging yaml objects using tips provided in this post.