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@dwmkerr/boxes

v0.2.0

Published

Quick access to your cloud instances.

Downloads

1

Readme

boxes

main npm (scoped) codecov

Quickly turn on, turn off, list and connect to your AWS instances. Great for saving costs by running servers in the cloud and starting them only when needed.

Recording of a terminal session that shows the boxes CLI in action

Quickstart

Tag any AWS instance you want to control with a tag named boxes.boxid:

In this screenshot I have two instances tagged, one with the value steambox (used for gaming) and one with torrentbox (for fast BitTorrent downloads).

Install the Boxes CLI with:

npm install @dwmkerr/boxes

You can now list your boxes with list and start or stop them with start and stop.

The following commands are available for boxes:

boxes list

Run boxes list to show the details of boxes:

$ boxes list
steambox: stopped
  Name: Steam Box
torrentbox: running
  Name: Torrent Box
  DNS: ec2-34-221-110-58.us-west-2.compute.amazonaws.com
  IP: 34.221.110.58

boxes start

Run boxes start <id> to start a box:

$ boxes start steambox
  steambox (i-098e8d30d5e399b03): stopped -> pending

boxes stop

Run boxes start <id> to stop a box:

$ boxes stop steambox
  steambox (i-098e8d30d5e399b03): running -> stopping

boxes info

Run boxes info <id> to show detailed info on a box:

$ boxes info steambox
{
  boxId: 'steambox',
  instanceId: 'i-098e8d30d5e399b03',
  name: 'Steam Box',
  status: 'stopping',
  instance: {
    AmiLaunchIndex: 0,
    ImageId: 'ami-0fae5ac34f36d5963',
    InstanceId: 'i-098e8d30d5e399b03',
    InstanceType: 'g4ad.xlarge',
...

boxes connect

The boxes connect command can be used to open an interface to a box. For this command to work, you need a boxes.json file that specifies how to connect. As an example, the following configuration file shows how to connect to a Torrent Box:

{
  "boxes": {
    "torrentbox": {
      "connectUrl": "http://${username}@${host}:9091/transmission/web/",
      "username": "dwmkerr"
    }
  }
}

When you run boxes connect torrentbox the connectUrl will be expanded with the actual hostname of the running instance, as well as any other parameters in the configuration file (such as the username). Pass the --open flag to open the connect URL directly:

% boxes connect --open torrentbox
{
  url: 'http://[email protected]:9091/transmission/web/',
  username: 'dwmkerr'
}
# the system configured browser will open with the url above...

boxes ssh

The boxes ssh command can be used to quickly ssh into a box. Provide the ssh command that should be used in the boxes.json file:

{
  "boxes": {
    "torrentbox": {
      "sshCommand": "ssh -i /Users/dwmkerr/repos/github/dwmkerr/dwmkerr/tf-aws-dwmkerr/dwmkerr_aws_key.pem ec2-user@${host}"
    }
  }
}

Running boxes ssh torrentbox will expand the command with the host. You can then copy the output and paste into the shell, or run a new shell with this output directly:

% bash -c "${boxes ssh torrentbox}"
Last login: Thu Nov  9 06:13:09 2023 from 135-180-121-112.fiber.dynamic.sonic.net
...

Developer Guide

Clone the repo, install dependencies, link, then the boxes command will be available:

git clone [email protected]:dwmkerr/boxes.git
# optionally use the latest node with:
# nvm use --lts
npm install
npm link

# Now run boxes commands such as:
boxes list

# Clean up when you are done...
npm unlink

The CLI uses the current local AWS configuration and will manage any EC2 instances with a tag named boxes.boxid. The value of the tag is the identifier used to manage the specific box.

AWS Configuration

Boxes will use whatever is the currently set local AWS configuration.

Boxes manages EC2 instances that have a tag with the name boxes.boxid.

Terminal Recording / asciinema

To create a terminal recording for the documentation:

  • Install asciinema brew install asciinema
  • Check that you have your profiles setup as documented in ./scripts/record-demo.sh
  • Run the script to start a 'clean' terminal ./scripts/record-demo.sh
  • Download your recording, e.g. to ./docs/620124.cast
  • Install svg-term-cli npm install -g svg-term-cli
  • Convert to SVG: svg-term --in ./docs/620124.cast --out docs/democast.svg --window --no-cursor --from=1000

Dependencies

Runtime dependencies are:

  • @aws-sdk/client-ec2 - AWS APIs
  • colors - to add colour to console output
  • commander - for quickly scaffold CLI apps
  • open - to open browsers / applications cross-platform

Development dependencies:

Notes on cost allocation

  • Set boxid tag with terraform
  • Recreate resources
  • Wait 24hrs
  • Give your user permissions for the reports
  • costs 0.01$ per call

TODO

Quick and dirty task-list.

  • [x] npm badge download link
  • [x] bug: package.json path
  • [x] build / lint / test / deploy pipeline
  • [x] screen recording of boxes list / stop / start / connect
  • [x] document how 'connect' works
  • [x] feat: ssh connect
  • [x] docs: make AWS screenshot a bit smaller in readme
  • [x] feat: some basic tests
  • [ ] feat: Cost management tags configuration to allow pricing info TODO check cost allocation report
  • [ ] docs: cost allocation tags blog post
  • [ ] docs: create and share blogpost
  • [ ] testing: recreate steam box with cost allocation tag enabled

Later

  • [ ] refactor: extract and test the parameter expansion for 'connect'
  • [ ] feat: autocomplete
  • [ ] feat: aws profile in config file