A really nice way of using gitlab ci to build images for multiple arches (especially arm and amd64).

A Docker swarm-based starting point for operating highly-available containerized applications. - swarmstack

Your Cloud in a Binary. Contribute to sdslabs

relly comprehensive introduction to especially the Deploy part of Devops

Application life-cycle management.

Create automated builds, deploys, management with habitat.

1. you write your code.
2. you write a plan.sh including dependencies, build steps and compile steps if necessary.
3. you manually or automatically run habitat builder according to the plan (through github hooks - gitlab possible?)
4. you get a .hart package to upload to habitat
5. you can automatically created containerized applications out of it -> docker etc

Examples of Gitlab workflow here, uses chef for provision