Table of Contents

Introduction

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Pre-Requisites for Deploying to Bare Metal

The baremetal UPI install can be optionally automated when using knictl (see below).  When attempting a manual baremetal UPI install, however, please be sure to read: https://docs.openshift.com/container-platform/4.4/installing/installing_bare_metal/installing-bare-metal.html

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.
├── 00_install-config
│   ├── install-config.name.patch.yaml
│   ├── install-config.patch.yaml
│   ├── kustomization.yaml
│   └── site-config.yaml
├── 01_cluster-mods
│   ├── kustomization.yaml
│   ├── manifests
│   └── openshift
├── 02_cluster-addons
│   └── kustomization.yaml
└── 03_services
└── kustomization.yaml

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mkdir -p $GOPATH/src/gerrit.akraino.org/kni
cd $GOPATH/src/gerrit.akraino.org/kni
git clone https://gerrit.akraino.org/r/kni/installer
cd installer
make build
mkdir -p $GOPATH/bin/
cp knictl $GOPATH/bin/

cp knictl /usr/local/go/bin/

Secrets

Most secrets (TLS certificates, Kubernetes API keys, etc.) will be auto-generated for you, but you need to provide at least two secrets yourself:

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This will begin to bring up your worker nodes. 
You will need to destroy the bootstrap VM once the deploy_workers command is initiated with:

virsh destroy <bootstrap_vm_name>

Monitor your worker nodes are you normally would during this process.  If the deployment doesn't hit any errors, you will then have a working baremetal cluster. You can monitor the state of the cluster with:

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https://docs.openshift.com/container-platform/4.4/installing/installing_bare_metal/installing-bare-metal.html#installation-registry-storage-config_installing-bare-metal to fix image registry operator.

Prepare to deploy CentOS nodes

The default installation is totally automated for RHCOS. However, there is the possibility to deploy CentOS nodes, but this requires some specific preparation steps:

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Mount it:

mount -o loop /tmp/CentOS-7-x86_64-DVD-1908.iso /mnt/
mkdir -p $HOME/.kni/$SITE_NAME/baremetal_automation/matchbox-data/var/lib/matchbox/assets/centos7
cp -ar /mnt/. $HOME/.kni/$SITE_NAME/baremetal_automation/matchbox-data/var/lib/matchbox/assets/centos7/
umount /mnt

Prepare a $HOME/settings_upi.env file with the following parameters:

export CLUSTER_NAME="$CLUSTER_NAME"
export BASE_DOMAIN="$CLUSTER_DOMAIN"
export PULL_SECRET='your_pull_secret'
export KUBECONFIG_PATH=$HOME/.kni/$SITE_NAME/baremetal_automation/ocp/auth/kubeconfig
export OS_INSTALL_ENDPOINT=http://<Installer node provisioning IP>:8080/assets/centos7
export ROOT_PASSWORD="pick_something" 

Navigate to the kickstart script generation and execute it, copying the generated kickstart file:

cd $HOME/.kni/$SITE_NAME/baremetal_automation/kickstart/
bash add_kickstart_for_centos.sh
cp centos-worker-kickstart.cfg $HOME/.kni/$SITE_NAME/baremetal_automation/matchbox-data/var/lib/matchbox/assets/

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After masters and workers are up, you can apply the workloads using the general procedure with:

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Accessing the Cluster

After the deployment finishes, a kubeconfig file will be placed inside auth directory:

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