Fix codebuild build

[mfitz]

The Problem

Although the Docker image builds locally, it has been failing consistently in CodeBuild for over a week in a way that I have been unable to reproduce outside of CodeBuild. The errors looked exactly like the ones described here, even though that is a CircleCI build rather than CodeBuild.

The Solution

Also as described here, the solution was to switch to a different base image from the same provider.

Validation of the Solution

• Successfully built the Docker image locally
• The CI/CD pipeline kicked in on the branch and ultimately led to our first successful CodeBuild build & push to ECR in a week or so:
• The CodeBuild job spec includes a basic smoke test of the Docker image that involves launching a container from the image and then running the Elara unit tests inside the container, as a way to validate that the dependencies are all present and correct
• The compressed size of the Docker image in ECR is very marginally bigger than it was with the previous base image:
• I haven't run any Elara commands in a container launched from the new image; what would be some good commands I could use to verify that Elara runs properly in the container?

[KasiaKoz]

Not sure about good commands to run elara in container, maybe something from a matesto pipeline?

[fredshone]

you could run smoke tests? sh scripts/example_configs_smoke_test.sh

[mfitz]

@KasiaKoz I don't know why I didn't think of using Matesto for smoke testing this new Elara image in a pipeline, but that's exactly what I should have done. Anyway, I did it, and all was well:

[KasiaKoz]

I forget about matesto too sometimes 😭

[mfitz]

@fredshone good suggestion. I ran the smoke tests inside a container launched from the new Docker image (BTW the smoke test script must be run with bash, rather than sh, because it uses the popd and pushd commands and they are bash-specific):

[mfitz]

I forget about matesto too sometimes 😭

You'd think I'd remember it though, eh? 🤦