How would you organize work with cloud infrastructure and bare metal for deploying a vanilla version of Kubernetes?

Would you use Terraform to create cloud infrastructure (virtual machines, networks, load balancers)? For bare metal servers, I would prepare images using Packer or Ansible, automating the installation of the operating system and basic packages.

To deploy Kubernetes on both platforms, I would use kubeadm, automating this process with Ansible. Ansible playbooks could manage dependency installation, network configuration, and deployment of control plane and worker nodes.

Store infrastructure and cluster configurations in Git (Infrastructure as Code - IaC).

I would use Vault to manage secrets and certificates.

Monitoring and logging through Prometheus and Grafana, log collection with Fluentd/Loki.

Platform:	Cloud	Bare Metal
Provisioning	Terraform	Ansible/Packer
OS Installation	Terraform (via cloud-init)	Ansible / PXE boot
K8s Installation	Ansible + kubeadm	Ansible + kubeadm
Configuration	Ansible	Ansible
Secrets	Vault	Vault
Monitoring	Prometheus/Grafana	Prometheus/Grafana
Logs	Fluentd/Loki	Fluentd/Loki

# Example Ansible Playbook for worker node
- name: Install Docker
  package:
    name: docker.io
    state: present

- name: Install kubeadm, kubelet, kubectl
  apt:
    name:
      - kubeadm
      - kubelet
      - kubectl
    state: present

- name: Join node to Kubernetes cluster
  shell: |
    {{ hostvars['master_node']['kubeadm_join_command'] }}
  args:
    creates: /etc/kubernetes/kubelet.env # Check if the node is not yet in the cluster