Creating default healthcheck for iris packer config

[ChrisCarini]

Fixes #476

cd ops/packer/
mkdir output
virtualenv venv
source venv/bin/activate
pip install -r requirements.txt
python gen_packer_cfg.py ./iris.yaml | tail -n +2 > ./output/iris.json
packer build -only=docker ./output/iris.json
docker run <hash>
curl http://localhost:16649/healthcheck

Yields: GOOD

I'm unsure of who/how to actually get this published to quay.io repo as the next version - please advise if this is something I can help with.

[avanier]

The image on Quay is about two years old. A new one would be nice. 🤷‍♂️

[ChrisCarini]

@jrgp / @diegocepedaw - either of you have a chance to take a look at this? (Just going through old PRs of mine trying to bump them to either resolution / closure.)

[ChrisCarini]

This is probably still useful, but I am going to close it out so I can clean up my forks. Hopefully it helps someone in the future.