better/baseimage repository overview

⁠Better base Docker images

⁠Stable images

• Alpine: better/baseimage:alpine-3.10
• Alpine: better/baseimage:analytics-alpine-3.9
• Node Alpine: better/baseimage:node-alpine-3.10

⁠Alpine

The base Alpine image sets up the app user and installs several useful libraries, along with Python 3, the GCC toolchain, and RDS SSL certificates.

⁠Analytics

The analytics image builds on the Alpine image, adding Postgres and a number of useful Python packages (Numpy, Tensorflow, etc).

⁠Node Alpine

The Node Alpine image is a minimal node image that has ssl certs updated and librdkafka (no python, gcc, etc).

⁠Testing

You can verify that this works by building locally, e.g. docker build . -f Dockerfile.analytics.

⁠Publishing an image

The tag convention for Git and Docker is as follows: [prefix]-[distro]-[version].

For the base image, there is no prefix, so a typical tag would be alpine-1.0.

When a tag (e.g. alpine-3.7) needs to be re-published, the following should be done:

• git push origin :alpine-3.7 - this deletes the existing Git tag on remote
• git tag -d alpine-3.7 - this deletes the existing Git tag on local
• git tag alpine-3.7 - this tags master
• git push origin master --tags - this pushes the new tag to remote and kicks off Docker Hub build. Note that it can take several hours to finish.