build protobuf in dockerfile for all services

[fsolleza]

Changes

Problem: Small changes to protobuf require extensive tooling to generate protobuf using make generate-protobuf. ide-gen-proto.sh shows how some service's protobuf might be generated.

Four services' generated protobuf code were moved to container build time. This doesn't replace make generate-protobuf which is still useful when understanding the protobuf code outside of build time. It makes make start and friends friendlier to small changes to pb/demo.proto.

The four services affected are:

• accountingservice
• checkoutservice
• productcatalogservice
• currencyservice

This was discussed here: #1374

• This is a resubmit of another PR where the email address (and resulting CLA) was messed up for some reason.

Merge Requirements

For new features contributions please make sure you have completed the following
essential items:

• CHANGELOG.md updated to document new feature additions
• Appropriate documentation updates in the docs
• Appropriate Helm chart updates in the helm-charts

Maintainers will not merge until the above have been completed. If you're unsure
which docs need to be changed ping the
@open-telemetry/demo-approvers.

[fsolleza]

I'm not exactly sure why currencyservice is failing the check?

Error: buildx failed with: ERROR: failed to solve: failed to compute cache key: failed to calculate checksum of ref cewwk3g7np5pflqnggalica0g::oepmw7nh6irdnl07gnw8ofc9c: failed to walk /tmp/buildkit-mount1551154311/src: lstat /tmp/buildkit-mount1551154311/src: no such file or directory

Happy to fix if pointed the right way.

[github-actions]

This PR was marked stale due to lack of activity. It will be closed in 7 days.

[austinlparker]

Interesting. Looks like it can't find the source directory in builder somehow, but it works locally. Gonna poke at it a bit.

[austinlparker]

Oh, duh. Ok, the problem is the changes you made to the context path in the docker compose file.

[austinlparker]

I think it should work now. You changed the build context in the compose file, but not in the GitHub workflow, so the docker context was being set to ./src/currencyservice rather than ./