Commodore Component: appcat

This is a Commodore Component for appcat.

This repository is part of Project Syn. For documentation on Project Syn and this component, see https://syn.tools.

Getting started for developers

This repository contains:

• component: SYN Commodore component for installing AppCat features

This component can be compiled with commodore like this:

$ commodore component compile . --search-paths . -n appcat -f tests/defaults.yml
#
# Alternative:
#
$ make test

The resulting compiled component can be found in compiled/.

There is currently no easy way to run it locally. You need to apply the compiled component to a test cluster to see if it works as expected.

This process is not suitable for installing the component on a production system.

Use ArgoCD in kindev

Kindev provides a forgejo instance and ArgoCD that we can use the git repositories from it. ArgoCD is available at http://argocd.127.0.0.1.nip.io:8088/.

To push any of the golden tests you can use make push-golden -e instance=vshn, it will:

• Compile the given golden test
• Push it to forgejo
• Create or update an ArgoCD app according to the app config in the component

There's also a push target for the split setup: make push-non-converged, this will create two distinct apps on ArgoCD to deploy the respective parts to the right clusters.

There's a known issue: On the very first sync after setting up kindev, ArgoCD doesn't recognize the server-side flag. Thus, the sync will fail. Simply click sync again in the ArgoCD GUI to trigger it again.

ArgoCD SyncWaves

There's a postprocess function that will add ArgoCD syn annotations to each object of the given kind. If any new types are introduced that need specific ordering, the add_argo_annotations.jsonnet is the right place.

Debugging comp-functions locally

The golden targets dev and control-plane are pre-configured to support proxying the comp functions from Kind to the local endpoint.

To enable it, change these two parameters:

  appcat:
    grpcEndpoint: host.docker.internal:9443
    proxyFunction: false

The grpcEndpoint depends on your docker implementation and should point to an address that's reachable from the containers.

HOSTIP=$(docker inspect kindev-control-plane | jq '.[0].NetworkSettings.Networks.kind.Gateway') # On kind MacOS/Windows
HOSTIP=host.docker.internal # On Docker Desktop distributions
HOSTIP=host.lima.internal # On Lima backed Docker distributions
Linux oneliner: echo `ip -4 addr show dev docker0 | grep inet | awk -F' ' '{print $2}' | awk -F'/' '{print $1}'`:9443

Also make sure that facts.appcat_dev is set on the target you want to proxy. This is a safeguard so we don't accidentally enable it on prod clusters.

Documentation

The rendered documentation for this component is available on the Commodore Components Hub.

Documentation for this component is written using Asciidoc and Antora. It's located in the docs/ folder. The Divio documentation structure is used to organize its content.

Run the make docs-serve command in the root of the project, and then browse to http://localhost:2020 to see a preview of the current state of the documentation.

After writing the documentation, please use the make lint_adoc command and correct any warnings raised by the tool.

Contributing and license

This library is licensed under BSD-3-Clause. For information about how to contribute see CONTRIBUTING.