This is part of the Charmed Apache Kafka Tutorial. Please refer to this page for more information and an overview of the content.
Setup the environment
Multipass is a quick and easy way to launch virtual machines running Ubuntu. It uses “cloud-init” standard to install and configure all the necessary parts automatically.
Let’s install Multipass from Snap and launch a new VM using “charm-dev” cloud-init config:
sudo snap install multipass && \
multipass launch --cpus 4 --memory 8G --disk 50G --name my-vm charm-dev
Note: See all multipass launch parameters in the launch command documentation.
Multipass list of commands is short and self-explanatory, e.g. show all running VMs:
multipass list
As soon as the new VM starts, enter:
multipass shell my-vm
Note: if at any point you’d like to leave Multipass VM, use Ctrl+D or type exit.
All the parts have been pre-installed inside VM already, like MicroK8s, LXD and Juju (the files /var/log/cloud-init.log and /var/log/cloud-init-output.log contain all low-level installation details).
Also, the image already comes with two Juju controllers already setup, one for LXD and one for MicroK8s
$ juju list-controllers
Use --refresh option with this command to see the latest information.
Controller Model User Access Cloud/Region Models Nodes HA Version
lxd* tutorial admin superuser localhost/localhost 2 1 none 3.1.5
microk8s - admin superuser microk8s/localhost 1 1 - 3.1.5
Make sure that you use the controller bound to the MicroK8s cluster, e.g.:
juju switch microk8s
The Juju controller can work with different models; models host applications such as Charmed Apache Kafka K8s. Set up a specific model for Charmed Apache Kafka K8s named tutorial:
juju add-model tutorial
You can now view the model you created above by entering the command juju status into the command line. You should see the following:
Model Controller Cloud/Region Version SLA Timestamp
tutorial microk8s microk8s/localhost 3.1.5 unsupported 15:46:55+02:00
Model "admin/tutorial" is empty.