mpk8s

Multipass Kubernetes setup for a simple 2 node cluster

Install two images . One for Master and one for Worker using multipass

Before this script is executed, edit the MOUNTDIR to point to the directory that needs to be mounted

	% ./mpinstall.sh

Now let's check to make sure that the VMs are running

	% multipass list
	Name                    State             IPv4             Image
	mnode                   Running           192.168.64.7     Ubuntu 18.04 LTS
	wnode1                  Running           192.168.64.9     Ubuntu 18.04 LTSa

Once the installation is complete it will create a file hosts.mpls with IPv4 and hostname entries for all the mosts created by multipass

Please use multipass transfer command to transfer these files to each unit and append on each hosts /etc/hosts file.

or you can use multipass shell into each VM and append the hosts.mpls file

Now let's install microk8s Kubernetes distro on each unit

	% ./kinstall.sh

Now let's make sure we can do a simple kubectl command on the master

	% multipass exec mnode -- sudo /snap/bin/kubectl get no
	NAME     STATUS   ROLES    AGE    VERSION
	mnode    Ready    master   2d5h   v1.18.0

Now we want to make sure that the worker node joins the cluster

	% ./kmjoin.sh

This will print a join command that needs to run on the worker node

	% microk8s join 192.168.64.7:25000/HNfCnPyUHamYteGNIrDobhJiGiRlPaeQ

Now check to make sure that the Cluster labelled and it is up

	% ./klabel.sh
	% multipass exec mnode -- sudo /snap/bin/kubectl get no
	NAME     STATUS   ROLES    AGE    VERSION
	mnode    Ready    master   2d6h   v1.18.0
	wnode1   Ready    worker   2d5h   v1.18.0

Now Let's load the mysql container on a PVC Claim created on a local directory Edit the variable hostPath in the file mysql-pv.yaml to point to the directory that the mysql instance will use as a Voume for the database

Now crete the PV first for mysql on mnode

	% kubectl apply -f mysql-pv.yaml

Now we kick off the MySQL instance container on this PV no mnode

	% kubectl apply -f mysql-deployment.yaml

Check to see that the deployment is there on mnode

	% kubectl get deployments

While we are at it , let's crete a simple nginx deployment instance

	% ./knginx.sh

Check the deployments again and see that both are running

	% kubectl get deployments