Automated Docker build for the Serverless framework
There are two Dockerfiles which are nearly the same. One uses
Python 2 base image and the other Python 3.
These images are built in Docker Cloud. The Serverless version to
build is specified as a build ARG (build argument) which is set
using --build-arg during the docker build command. To pass this
argument, we need a Docker Cloud build hook which resides in
hooks/build.
In order to bump the Serverless version, the only real requirement is
to change the version in the hooks/build file. The Makefile also
has references to the Serverless version, but this is really for
testing the build locally.
My workflow is usually:
- Update versions in
Makefileand runmake build - If the build works, update the versions in
hooks/build - Create PR
- On merge to
master, Docker Hub will do the builds automatically.
See the following for more information on Docker Cloud build hooks:
https://docs.docker.com/docker-cloud/builds/advanced/#source-repository--branch-clones