Some useful snippets to install Docker and microk8s on Ubuntu 18.04 LTS (Bionic Beaver)

docker-microk8s-ubuntu-18.md

Base upgrade of Ubuntu 18

sudo apt-get update
sudo apt-get upgrade -y

Docker CE installation

sudo apt-get install -y \
	apt-transport-https \
	ca-certificates \
	curl \
	gnupg-agent \
	software-properties-common

curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -

sudo add-apt-repository \
  "deb [arch=amd64] https://download.docker.com/linux/ubuntu \
  $(lsb_release -cs) \
  stable"

sudo apt-get update

sudo apt-get install -y docker-ce

sudo usermod -a -G docker $(whoami)

Allow insecure Docker registries

sudo tee /etc/docker/daemon.json <<EOF
{
  "insecure-registries" : ["localhost:32000"]
}
EOF

sudo kill -SIGHUP $(pidof dockerd)

Warning

Disable localhost entries for IPv6 addresses in '/etc/localhost', otherwise Docker image pulling from the local registry using localhost will not work.

MicroK8s 1.18 installation

sudo apt-get install -y snapd

sudo snap install microk8s --classic --channel=1.18/stable

Now log out of/back in the shell.

Allow name resolution from within pods

sudo iptables -P FORWARD ACCEPT

Persist the above rule

sudo apt-get install -y iptables-persistent
sudo iptables-save | sudo tee /etc/iptables/rules.v4

Set user permissions

sudo usermod -a -G microk8s $(whoami)
sudo chown -f -R $(whoami) ~/.kube

Enable standard addons

microk8s.enable dns registry ingress

Inspect your setup

microk8s.inspect