Deployment improvements

[iros]

Please review Here to keep track of progress and todo items.

Making many deployment improvements such as:

• [x] support running different environments
• [x] fix AbortionError intermittent issue
• [x] migrate to Docker-based local running
• [x] conform to linting rules from git-hooks
• [x] ensure tests are passing
• [x] support deploying to staging and sandbox
• [x] simplify the credential file sharing. Right now we need to pass it to the ./deploy.sh script, but we can't pass it to ./run.sh if it's outside the repo because ./run.sh is also used from the docker container on the server, thus it does not have access to whatever your key folder is. Locally though, it'd be nice to just pass a KEY_FILE too. Could check for the presence of cred.json and then just use it, but it seems inconsistent (plus once we move it once, we never remove it).

README.md is updated as I go. You can setup and run a local server more easily now using Docker. Changed from local run environment to Docker due to challenges deploying a flex python environment (which now requires a Dockerfile). Switched to custom runtime.

[iros]

Examples: Deployment:

KEY_FILE=../mlab-keys/mlab-sandbox-pipeline-bigtable\@mlab-sandbox.iam.gserviceaccount.com-creds.json ./deploy.sh sandbox

Local run:

docker build -t mlab-vis-api .
docker run -p 8080:8080 -e API_MODE=production mlab-vis-api

Note that your cred.json file should match the API_MODE (for project id etc.)

I'd really love to get rid of this cred.json file, so I'm going to investigate that next time.

[iros]

Simplified the credential passing. Now mounting a volume for local docker running/testing, and copying KEY_FILE temporarily for deployment. Also changed local test routine to use a test docker container.

[critzo]

@iros Sorry for the delay on this. LGTM!