MetalKube Installer Dev Scripts

This set of scripts configures some libvirt VMs and associated virtualbmc processes to enable deploying to them as dummy baremetal nodes.

This is very similar to how we do TripleO testing so we reuse some roles from tripleo-quickstart here.

Pre-requisites

• CentOS 7
• ideally on a bare metal host
• run as a user with passwordless sudo access
• get a valid pull secret (json string) from https://cloud.openshift.com/clusters/install#pull-secret

Instructions

Configuration

Make a copy of the config_example.sh to config_$USER.sh, and set the PULL_SECRET variable to the secret obtained from cloud.openshift.com.

For baremetal test setups where you don't require the VM fake-baremetal nodes, you may also set NODES_FILE to reference a manually created json file with the node details, and NODES_PLATFORM which can be set to e.g "baremetal" to disable the libvirt master/worker node setup. See common.sh for other variables that can be overridden.

Installation

For a new setup, run:

make

The Makefile will run the scripts in this order:

• ./01_install_requirements.sh
• ./02_configure_host.sh

This should result in some (stopped) VMs created by tripleo-quickstart on the local virthost and some other dependencies installed.

• ./03_ocp_repo_sync.sh

After this step, you can run the facet server with:

$ go run "${GOPATH}/src/github.com/metalkube/facet/main.go" server

• ./04_setup_ironic.sh

This will setup Ironic on the host server and download the resources it requires

• ./05_build_ocp_installer.sh

These will pull and build the openshift-install and some other things from source.

• ./06_deploy_bootstrap_vm.sh

This will run the openshift-install to generate ignition configs and boot the bootstrap VM, including a bootstrap ironic all in one container. Ironic container is stored at https://quay.io/repository/metalkube/metalkube-ironic, built from https://github.com/metalkube/metalkube-ironic Currently no cluster is actually created.

When the VM is running, the script will show the IP and you can ssh to the VM via ssh core@IP.

Then you can interact with the k8s API on the bootstrap VM e.g sudo oc status --verbose --config /etc/kubernetes/kubeconfig.

You can also see the status of the bootkube.sh script which is running via journalctl -b -f -u bootkube.service.

• ./07_deploy_masters.sh

This will deploy the master nodes via ironic, using the Ignition config generated in the previous step.

After running ./07_deploy_masters.sh note that it takes some time for the cluster to fully come up, many container images are downloaded before the k8s API is fully available.

Interacting with the deployed cluster

When the master nodes are up and the cluster is active, you can interact with the API:

$ oc --config ocp/auth/kubeconfig get nodes
NAME       STATUS    ROLES     AGE       VERSION
master-0   Ready     master    20m       v1.12.4+50c2f2340a
master-1   Ready     master    20m       v1.12.4+50c2f2340a
master-2   Ready     master    20m       v1.12.4+50c2f2340a

Interacting with Ironic directly

For manual debugging via openstackclient, you can use the following:

export OS_TOKEN=fake-token
export OS_URL=http://localhost:6385/
openstack baremetal node list
...

Cleanup

• To clean up the ocp deployment run ./ocp_cleanup.sh

• To clean up the dummy baremetal VMs and associated libvirt resources run ./host_cleanup.sh

e.g. to clean and re-install ocp run:

./ocp_cleanup.sh
rm -fr ocp
./05_run_ocp.sh

Or, you can run make clean which will run all of the cleanup steps.

Troubleshooting

If you're having trouble, try systemctl restart libvirtd.

You can use:

virsh console domain_name

To get to the bootstrap node. The username is core and the password is notworking