To install localhost OpenShift cluster for test OpenShift deployment scenario, follow the steps below.

Creating a CRC (CodeReady Containers cluster)

1. Create RedHat account at https://www.redhat.com/
2. Log into the account created.
3. Go to https://console.redhat.com/openshift/create/local.
4. Download required version of CodeReady Containers.
5. Download and save pull secret.
6. Extract files to folder and install, if required (for Windows).
7. Add CRC path to a system PATH.

Starting OpenShift cluster

There might not be enough default memory (9 Gb) / vCpus (4) / disk-size (35 Gb). Hence, to set new values use the following commands.

crc config view
crc config set memory 40
crc config set cpus 12
crc config set disk-size 50

Afterwards, to start the OpenShift cluster, use the below commands.

crc setup
crc start

Upon CRC start, the first call will require a pull secret, obtained earlier.

Possible issues

Problem: On Windows CRC version there might be an issue with disk size increasing.

Solution: The default value on CRC start is 35 Gb. To increase its size, stop the running container, set new value and start container again by running the following command.

crc setup
crc start
crc stop
crc config set disk-size 50
crc start