npm package discovery and stats viewer.

Discover Tips

  • General search

    [free text search, go nuts!]

  • Package details

    pkg:[package-name]

  • User packages

    @[username]

Sponsor

Optimize Toolset

I’ve always been into building performant and accessible sites, but lately I’ve been taking it extremely seriously. So much so that I’ve been building a tool to help me optimize and monitor the sites that I build to make sure that I’m making an attempt to offer the best experience to those who visit them. If you’re into performant, accessible and SEO friendly sites, you might like it too! You can check it out at Optimize Toolset.

About

Hi, 👋, I’m Ryan Hefner  and I built this site for me, and you! The goal of this site was to provide an easy way for me to check the stats on my npm packages, both for prioritizing issues and updates, and to give me a little kick in the pants to keep up on stuff.

As I was building it, I realized that I was actually using the tool to build the tool, and figured I might as well put this out there and hopefully others will find it to be a fast and useful way to search and browse npm packages as I have.

If you’re interested in other things I’m working on, follow me on Twitter or check out the open source projects I’ve been publishing on GitHub.

I am also working on a Twitter bot for this site to tweet the most popular, newest, random packages from npm. Please follow that account now and it will start sending out packages soon–ish.

Open Software & Tools

This site wouldn’t be possible without the immense generosity and tireless efforts from the people who make contributions to the world and share their work via open source initiatives. Thank you 🙏

© 2021 – Pkg Stats / Ryan Hefner

@mapbox/cfn-config

v3.2.0

Published

Quickly configure and start AWS CloudFormation stacks

Downloads

8,529

Readme

Quickly configure and start AWS CloudFormation stacks.

cfn-config

Features

  • CLI tool provides prompting for easy stack configuration and verification of intended changes to your stack.
  • Save parameter values in a specified S3 bucket for easy reuse and sharing privately.
  • Deploy templates written as either JSON or JavaScript files. JavaScript files must either export JSON directly, or export a function that asynchronously provides JSON.
  • JavaScript library functions provide access to high-level routines (e.g. create, update, delete) as well as low-level utilities you can use to build your own deployment workflows.
  • Optional KMS encryption of sensitive parameter values.

Prerequisites

To use cfn-config, you will need to have two (or more) S3 buckets ready:

  • config bucket: this is a bucket where cfn-config will save stack configurations (parameter values) that can be reused.

  • template buckets: cfn-config will upload your template file to a bucket each time you perform a create or update action. There must be a bucket in any region to which you intend to deploy CloudFormation stacks. The suggested default bucket names are:

    cfn-config-templates-{account id}-{region}

    If you create buckets matching this pattern in each region you wish to use, then you do not need to specify the --template-bucket option when using cfn-config's CLI tool.

CLI Installation

cfn-config includes a CLI tool for working with CloudFormation stacks. Install globally with npm to use the CLI commands:

$ npm install -g @mapbox/cfn-config

CLI Usage

$ cfn-config --help

Quickly configure and start AWS CloudFormation stacks

  USAGE: cfn-config <command> <environment> [templatePath] [options]

  command:
    - create                create a new stack
    - update                update an existing stack
    - delete                delete an existing stack
    - info                  fetch information about an existing stack
    - save                  save an existing stack's configuration

  environment:
    Any string. A stack's name is constructed as name-environment

  templatePath:
    The relative path to the CloudFormation template in JSON format, required
    for create and update commands.

  options:
    -n, --name              the stack's base name (default: current dir name)
    -r, --region            the stack's region (default: us-east-1)
    -c, --config-bucket     an S3 bucket for storing stack configurations.
                            Required for the create, update, and save commands.
    -t, --template-bucket   an S3 bucket for storing templates
                            (default: cfn-config-templates-$AWS_ACCOUNT_ID-region)
    -k, --kms               a KMS key ID for parameter encryption or
                            configuration encryption at rest on S3. If not
                            provided, no encryption will be performed. If
                            provided as a flag without a value, the default
                            key id alias/cloudformation will be used.
    -f, --force             perform a create/update/delete command without any
                            prompting, accepting all defaults
    -e, --extended          display resource details with the info command
    -x, --expand            Add CAPABILITY_AUTO_EXPAND to the changeset capabilities.
                            This allows transformation macros to be expanded on stack
                            creation or update.

JavaScript Installation

Include cfn-config into your project to incorporate/extend its functionality. Add to your project's package.json by running the following from your project's directory:

$ npm install --save @mapbox/cfn-config

Then, in your scripts:

var cfnConfig = require('@mapbox/cfn-config');

JavaScript Usage

High-level prompting routines to create, update, and delete stacks are provided, as well as to fetch detailed information about a stack or to save an existing stack's configuration to S3.

First, create a commands object:

var options = {
  name: 'my-stack', // the base name of the stack
  region: 'us-east-1', // the region where the stack resides
  templatePath: '~/my-stack/cfn.template.json', // the template file
  configBucket: 'my-cfn-configurations', // bucket for configuration files
  templateBucket: 'cfn-config-templates-123456789012-us-east-1' // bucket for templates
};

var commands = cfnConfig.commands(options);

Then, perform the desired operation:

// Create a stack called `my-stack-testing`
commands.create('testing', '~/my-stack/cfn.template.json', function(err) {
  if (err) console.error(`Create failed: ${err.message}`);
  else console.log('Create succeeded');
});

// Update the stack with a different version of the template
commands.update('testing', '~/my-stack/cfn.template-v2.json', function(err) {
  if (err) console.error(`Update failed: ${err.message}`);
  else console.log('Update succeeded');
});

// Save the stack's configuration to S3
commands.save('testing', function(err) {
  if (err) console.error(`Failed to save configuration: ${err.message}`);
  else console.log('Saved configuration');
});

// Get information about the stack
commands.info('testing', function(err, info) {
  if (err) console.error(`Failed to read stack info: ${err.message}`);
  else console.log(JSON.stringify(info, null, 2));
});

// Delete the stack
commands.delete('testing', function(err) {
  if (err) console.error(`Delete failed: ${err.message}`);
  else console.log('Delete succeeded');
});

For low-level functions, see documentation in the code for now. More legible docs are to come.