Charmed-Kubernetes/calico/DEVELOPING.md

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Developing layer-calico

Installing build dependencies

To install build dependencies:

sudo snap install charm --classic
sudo apt install docker.io
sudo usermod -aG docker $USER

After running these commands, terminate your shell session and start a new one to pick up the modified user groups.

Building the charm

To build the charm:

charm build

By default, this will build the charm and place it in /tmp/charm-builds/calico.

Building resources

To build resources:

./build-calico-resources.sh

This will produce several .tar.gz files that you will need to attach to the charm when you deploy it.

Testing

You can test a locally built calico charm by deploying it with Charmed Kubernetes.

Create a file named local-calico.yaml that contains the following (with paths adjusted to fit your environment):

applications:
  calico:
    charm: /tmp/charm-builds/calico
    resources:
      calico: /path/to/layer-calico/calico-amd64.tar.gz
      calico-upgrade: /path/to/layer-calico/calico-upgrade-amd64.tar.gz

Then deploy Charmed Kubernetes with your locally built calico charm:

juju deploy cs:~containers/kubernetes-calico --overlay local-calico.yaml