This repo is a prototype for what a Deis component's Git repository should look like.
A Deis component is...
- An isolated piece of functionality (e.g. a microservice)
- That can be packaged into a container (via
docker build) - And can be run inside of Kubernetes
Typically, Deis components are written in Go.
If you want to experiment with creating a new repo using this framework, try something like this:
$ mkdir my_project
$ cd my_project
$ curl -fsSL https://github.com/technosophos/prototype-repo/archive/master.tar.gz | tar -zxv --strip-components 1
Every component must define the appropriate Kubernetes files. Preferably, components should use Replication Controllers over pods, and use Services for autodiscovery.
Labels should be used for versioning components and also for identifying components as part of Deis.
Secrets should be used for storing small bits of shared information, and their contents may be set at startup time.
All Kubernetes definitions should be placed in the manifests/ directory.
The Makefile should have targets that use kubectl to load
definitions into Kubernetes.
Source code should be built either outside of Docker or in a special Docker build phase.
A separate Dockerfile should be used for building the image. That
Dockerfile should always be placed inside of the rootfs directory, and
should manage the final image size appropriately.
(See the Makefile for one possible way of doing a Docker build phase)
All files that are to be packaged into the container should be written
to the rootfs/ folder.
Along with unit tests, Deis values functional and integration testing.
These tests should go in the _tests folder.