Update the changelog for v0.2.0

Author: rjosephwright

CHANGELOG.md

@@ -1,7 +1,33 @@
 # Changelog
 
+## [0.2.0] - 2024-08-06
+
+### Added
+
+- Add a changelog, to follow the style of [keep a changelog](https://keepachangelog.com/en/1.0.0/).
+- Add a `test` target to the Makefile that runs `go vet` and `go test`.
+- Add GitHub workflows for test and release.
+- Environment variables and command arguments in user data can include variable expansion in the style of Kubernetes [dependent environment variables](https://kubernetes.io/docs/tasks/inject-data-application/define-interdependent-environment-variables/).
+- EC2 instance metadata can be used as a source for environment variables.
+- Set a default `PATH` environment variable for the instance command on boot if it is not defined in the container image or user data.
+
+### Changed
+
+- Validate the VERSION variable in the Makefile.
+- Pass --rm to docker run commands in the Makefile.
+- Use the AWS SDK to retrieve EC2 instance metadata instead of using HTTP directly.
+- Update instances to use cgroups v2.
+- Update docker library.
+- Tidy go.mod.
+- Update easyto-assets to `v0.3.0` to include kmod for loading of kernel modules.
+
+### Removed
+
+- Building of assets has been moved to the `github.com/cloudboss/easyto-assets` repo.
+
 ## [0.1.0] - 2024-07-08
 
 Initial release
 
+[0.2.0]: https://github.com/cloudboss/easyto/releases/tag/v0.2.0
 [0.1.0]: https://github.com/cloudboss/easyto/releases/tag/v0.1.0