Skip to content

Commit

Permalink
readme
Browse files Browse the repository at this point in the history
  • Loading branch information
purpleclay committed Aug 28, 2022
1 parent be42125 commit 538f634
Show file tree
Hide file tree
Showing 2 changed files with 29 additions and 3 deletions.
30 changes: 28 additions & 2 deletions README.md
Original file line number Diff line number Diff line change
@@ -1,3 +1,29 @@
# imds-mock
# Instance Metadata Service Mock

Easy mocking of the Amazon EC2 Instance Metadata Service (IMDS).
[![Build status](https://img.shields.io/github/workflow/status/purpleclay/imds-mock/ci?style=flat-square&logo=go)](https://github.com/purpleclay/imds-mock/actions?workflow=ci)
[![License MIT](https://img.shields.io/badge/license-MIT-blue.svg?style=flat-square)](/LICENSE)
[![Go Report Card](https://goreportcard.com/badge/github.com/purpleclay/imds-mock?style=flat-square)](https://goreportcard.com/report/github.com/purpleclay/imds-mock)
[![Go Version](https://img.shields.io/github/go-mod/go-version/purpleclay/imds-mock.svg?style=flat-square)](go.mod)
[![codecov](https://codecov.io/gh/purpleclay/imds-mock/branch/main/graph/badge.svg)](https://codecov.io/gh/purpleclay/imds-mock)

The Instance Metadata Service (IMDS) stores data about an EC2 that you can use to configure or manage the running of that instance. Data is made accessible through the use of instance categories that adapt to its current state. Designing and developing software around the IMDS service poses two main challenges:

1. First and foremost, an EC2 instance is needed; increasing costs
1. There is no way to influence the IMDS service to simulate EC2 events such as spot termination

Both of which make testing difficult and unattainable.

## So why use a Mock?

The `imds-mock` attempts to solve these problems by providing a tool to accurately simulate any use case within the IMDS service, bringing testing to the forefront without additional cost.

### Features

- All mock responses accurately reflect those from the actual IMDS service
- Customisation of responses is supported through CLI flags
- Support for both IMDSv1 and IMDSv2, with strict IMDSv2 possible
- An in-built eventing system makes the simulation of spot interruption notices both easy and configurable

## Documentation

Check out the latest [documentation](https://purpleclay.github.io/imds-mock/) for a guide on how to use the imds-mock.
2 changes: 1 addition & 1 deletion docs/index.md
Original file line number Diff line number Diff line change
@@ -1,6 +1,6 @@
# Instance Metadata Service Mock

The Instance Metadata Service (IMDS) stores data about an EC2 that you can use to configure or manage the running of that instance. Data is made accessible through the use of instance categories which adapt to its current state. Designing and developing software around the IMDS service poses two main challenges:
The Instance Metadata Service (IMDS) stores data about an EC2 that you can use to configure or manage the running of that instance. Data is made accessible through the use of instance categories that adapt to its current state. Designing and developing software around the IMDS service poses two main challenges:

1. First and foremost, an EC2 instance is needed; increasing costs
1. There is no way to influence the IMDS service to simulate EC2 events such as spot termination
Expand Down

0 comments on commit 538f634

Please sign in to comment.