Run tests against running container on travis

[davidwilby]

Resolves #110 by modifying the travis config to:

• copying the trained model from AWS,
• building a local image on travis from the pushed branch,
• running the two sets of tests.

Note This doesn't work with the OSX build because Services are not supported on osx for travis. However, docker is OS agnostic, so this shouldn't matter. (it's not clear to me what the OSX build is for)

To do before/on merging:

• add AWS credentials to travis environment variables for repo (AWS_ACCESS_KEY_ID and AWS_SECRET_ACCESS_KEY)

Pull Request Checklist

• Pull request has been made against dev branch.
• Pull request includes a description of the change and the reason behind it.
• Pull request uses keywords to close relevant issues.
• Pull request includes unit tests for any new functionality.
• README and docs have been updated.
• ./.ci/local_checks.sh passes locally. (The app must be running. See README.md for instructions.)

Maintainer's responsibilities:

• _version.py has been updated.
• CHANGELOG.md has been updated.
• Updated app container has been pushed with current version number.
• App container version number has been updated everywhere in README.

[gsganden]

Thanks! I'm fine with taking out the OS X build.

[davidwilby]

@gsganden are there particular changes you'd like to be made?
I expect the travis checks to pass once the AWS environment variables for the repo are added on travis and the build re-run.

PS: Another reason to take out the OSX build: https://blog.travis-ci.com/2020-11-02-travis-ci-new-billing

[jameslamb]

@gsganden do you need me to review anything on this?

[gsganden]

Nah @jameslamb I can take it.

[jameslamb]

Nah @jameslamb I can take it.

ok cool, I'll remove myself from this one. Still happy to hep on this repo if you ever need me!

[jameslamb]

it's ok with me if you want to take me out of CODEOWNERS and just manually request me when needed

[gsganden]

it's ok with me if you want to take me out of CODEOWNERS and just manually request me when needed

Done

[gsganden]

I believe I added the credentials, but the build isn't finding them. Do you know what to do?

[davidwilby]

It might be down to one or both of:

• environment variables being case sensitive:
  
• Escaping special characters:
  

[gsganden]

I'm seeing the same error message after changing the variable names to all caps. Any ideas?

[jameslamb]

If you're changing things in the Travis console and then clicking "rebuild", it's possible that that won't work because stuff is cached. I've noticed behavior like that with other CI services before.

You could try pushing an empty commit to this branch. I keep this alias in my ~/.bash_profile for that purpose:

push_empty (){
    git commit --allow-empty -m "empty commit"
    git push origin HEAD
}