lambda-cfn-env

A small CLI tool to update environment variables of one or more AWS Lambda functions from a AWS CloudFormation template. This is useful if you have lots of Lambda functions in your stack and need to (temporary) update their environment variables without performing a re-deployment of your whole stack.

Notes

• Before you use lambda-cfn-env, make sure that your CloudFormation stack exists, i.e. you've successfully deployed it at least once.
• Use at your own risk.

Install

npm

npm install -g lambda-cfn-env

yarn

yarn global add lambda-cfn-env

Usage

save

Adds an environment variable key-value pair to all Lambda functions.

lambda-cfn-env
    save
    --stack stack-name
    --region region
    --env Key=Value
    [--debug]

--stack the stack name for your CloudFormation template

--region the region of your CloudFormation stack and Lambda functions

--env a key value pair to set one environment variable, e.g. Key=Value

--debug optional: prints out some further debug logs.

remove

Removes an environment variable key-value pair from all Lambda functions.

lambda-cfn-env
    remove
    --stack stack-name
    --region region
    --env Key
    [--debug]

--stack the stack name for your CloudFormation template

--region the region of your CloudFormation stack and Lambda functions

--env a key to remove one environment variable, e.g. Key

--debug optional: prints out some further debug logs.

Author

Sebastian Hesse

License

MIT License

Copyright (c) 2018 Sebastian Hesse

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.