Add octopusdeploy/octo docker image support for arm64

[mattboschatliveoak]

When can we expect an arm64 compatible version of the octopusdeploy/octo docker image?

There are members of my team who are now being provided M1 macs and are unable to do deployments from local due to there only being images for linux/amd64 or windows/amd64 architectures.

[borland]

Hi @mattboschatliveoak

Currently, no ARM64 binaries are provided and we do not have plans to provide one. The x86_64 binary runs transparently on an Apple Silicon-based Mac via Rosetta 2. Based on our internal testing, we can confirm that all features work as they would on an Intel-based Mac.

If you are using Docker Desktop for macOS and would like to run the octopusdeploy/octo container image, you may do so on an Apple Silicon-based Mac through the --platform linux/amd64 command line switch when you invoke docker run.
Example:

docker run --rm --platform linux/amd64 octopusdeploy/octo create-release --server=<server> --apiKey=<key> --space=<space> --project=<projectname>

[powareverb]

FYI successfully running the portable version of the CLI on arm64 hardware (along with running a arm64 tentacle for testing). Although packaging would be another issue, it is at least possible to run the CLI on arm64 without too much effort. I could test it & PR if it's possible to get the git repo URL that's behind that docker hub repo - https://hub.docker.com/r/octopusdeploy/octo - the referred repo hasn't changed in years - https://github.com/zentron/OctopusDocker.