Install OpenShift CRC on Ubuntu

Install prerequisites:

sudo apt update
sudo apt-get install -y qemu-kvm libvirt-daemon libvirt-daemon-system bridge-utils virt-manager virtiofsd

Navigate to OpenShift Local Homepage - login and download crc, usually it is placed in ~/Downloads

mkdir -p $HOME/local/bin
tar xvf crc-linux-amd64.tar.xz 
mv crc-linux-2.51.0-amd64/crc ~/local/bin/
echo "export PATH=$HOME/local/bin:/usr/sbin/:$HOME/.crc/bin/oc/:$PATH:" >> $HOME/.bashrc

And re-login - your user should be in libvirt group.

Prepare the host machine:

crc setup

Set additional configuration:

# CPU
crc config set cpus 8
# Memory
crc config set memory 14786
# VM disk size
crc config set disk-size 50
# Enable monitoring
crc config set enable-cluster-monitoring true

Try to start the virtual machine:

crc start

Paste the secret.

After machine is started, you'll get the cluster URL and credentials. If you want to get them again:

crc console --credentials

To be able to run oc - issue:

eval $(crc oc-env)

Login as kubeadmin or developer like this:

oc login -u kubeadmin https://api.crc.testing:6443
oc login -u developer https://api.crc.testing:6443

Open the OpenShift CRC console in browser:

crc console