libre.sh

libre.sh is a platform to manage many instances of different applications at scale.

Use Cases

The use cases directory lists things we try to achieve with libre.sh.

Glossary

Application: an application is a web application that is usable by an end user (For instance: HedgeDoc, Discourse, …). Object Store (S3 API “standard”): An http API to store and retrieve objects. PITR: Point in Time Recovery

Personas

Cluster Operator

A Cluster Operator is a System Administrator, or Site Reliability Engineer that is transforming raw machines (physical, virtual) into a production Kubernetes cluster. This person is typically root on servers and on Kubernetes API.

Application Operator

An Application Operator is a person that is less technical than a Cluster Operator, and doesn’t necessarily understand the command line interface. But this person, through a nice User interface, is able to manipulate high level objects that represent the application.

End User

A user that will interact only with an application.

Architecture decision records

Systems

libre.sh runtime

A collection of controllers and services that are required to deploy applications instances.

libre.sh runtime manager

The controller in charge of installing/configuring/upgrading the runtime.

Development

Requirements

• nix-shell

Enter the shell

nix-shell

Creating the cluster

kind create cluster --config kind-config.yaml

Running tilt

tilt up

With other operators:

tilt up -- import-operator

Changing args without restarting:

tilt args import-operator

Deleting the cluster

kind delete cluster --name libresh-dev