Usage

There are two ways of launching KubeInit, directly using the ansible-playbook command from the project’s source code, or by running it inside a container.

Requirements

  • A fresh deployed server with enough RAM and disk space (120GB in RAM and 300GB in disk) and CentOS 8 (it should work also in Fedora/Debian/Ubuntu hosts).

  • We assume that the hypervisor node is called nyctea (defined in the inventory).

  • Have root passwordless access with certificates.

  • Adjust the inventory file to suit your needs i.e. the worker nodes you will need in your cluster.

Directly executing the deployment playbook

The following example command will deploy a multi-master OKD 4.5 cluster with 1 worker node in a single command and in approximately 30 minutes.

Note

All the commands must be executed from the project’s root directory.

git clone https://github.com/Kubeinit/kubeinit.git
cd kubeinit
ansible-playbook \
    --user root \
    -v -i ./hosts/okd/inventory \
    --become \
    --become-user root \
    ./playbooks/okd.yml

After provisioning any of the scenarios, you should have your environment ready to go. To connect to the nodes from the hypervisor use the IP addresses from the inventory files.

Running the deployment command from a container

The whole process is explained in the HowTo’s. The following commands build a container image with the project inside of it, and then launches the container executing the ansible-playbook command with all the standard ansible-playbook parameters.

Running from the GIT repository

git clone https://github.com/Kubeinit/kubeinit.git
cd kubeinit
podman build -t kubeinit/kubeinit .

podman run --rm -it \
    -v ~/.ssh/id_rsa:/root/.ssh/id_rsa:z \
    -v /etc/hosts:/etc/hosts \
    kubeinit/kubeinit \
        --user root \
        -v -i ./hosts/okd/inventory \
        --become \
        --become-user root \
        ./playbooks/okd.yml

Running from a release

TAG=0.6.1
podman run --rm -it \
    -v ~/.ssh/id_rsa:/root/.ssh/id_rsa:z \
    -v /etc/hosts:/etc/hosts \
    quay.io/kubeinit/kubeinit:$TAG \
        --user root \
        -v -i ./hosts/okd/inventory \
        --become \
        --become-user root \
        ./playbooks/okd.yml