Files
hetzner-cluster/playbooks/install_k8s.yml

199 lines
5.7 KiB
YAML

# - name: Configure compute for the cluster.
# hosts: servers
# gather_facts: false
# vars:
# kubernetes_version: v1.30
# tasks:
# - name: Download Kubernetes key.
# ansible.builtin.apt_key:
# url: https://pkgs.k8s.io/core:/stable:/{{ kubernetes_version }}/deb/Release.key
# state: present
# - name: Download Kubernetes repository.
# ansible.builtin.apt_repository:
# repo: "deb https://pkgs.k8s.io/core:/stable:/{{ kubernetes_version }}/deb/ /"
# state: present
# - name: Download CRI-O key.
# ansible.builtin.apt_key:
# url: https://pkgs.k8s.io/addons:/cri-o:/prerelease:/main/deb/Release.key
# state: present
# - name: Download CRI-O repository.
# ansible.builtin.apt_repository:
# repo: "deb https://pkgs.k8s.io/addons:/cri-o:/prerelease:/main/deb/ /"
# state: present
# - name: Download Helm key.
# ansible.builtin.apt_key:
# url: https://packages.buildkite.com/helm-linux/helm-debian/gpgkey
# state: present
# - name: Download Helm repository.
# ansible.builtin.apt_repository:
# repo: "deb https://packages.buildkite.com/helm-linux/helm-debian/any/ any main"
# state: present
# - name: Install packages.
# ansible.builtin.apt:
# state: present
# update_cache: true
# name: [cri-o, kubelet, kubeadm, kubectl, python3-pip, helm]
# - name: Install Kubernetes Python packages.
# ansible.builtin.pip:
# name: [kubernetes, pyyaml]
# state: present
# break_system_packages: true
# - name: Enable IPv4 forwarding.
# ansible.posix.sysctl:
# name: net.ipv4.ip_forward
# value: '1'
# sysctl_set: true
# notify: Reboot the nodes.
# - name: Enable `br_netfilter` module.
# community.general.modprobe:
# name: br_netfilter
# state: present
# notify: Reboot the nodes.
# handlers:
# - name: Reboot the nodes.
# ansible.builtin.reboot:
# - name: Spawn new cluster on control node.
# hosts: control
# gather_facts: false
# vars:
# config_template: ../templates/InitConfiguration.yml.jinja2
# config:
# bootstrap_token: "{{ secrets.bootstrap_token }}"
# node_ip: 10.0.2.11
# node_name: control
# vars_files:
# - ../vault.yml
# tasks:
# - name: Test for cluster.
# kubernetes.core.k8s_cluster_info:
# register: api_status
# ignore_errors: true
# - name: Copy configuration over.
# ansible.builtin.template:
# src: "{{ config_template }}"
# dest: InitConfiguration.yml
# mode: preserve
# when: "api_status.failed"
# - name: Initialize cluster.
# ansible.builtin.command:
# kubeadm init --config InitConfiguration.yml
# changed_when: true
# when: "api_status.failed"
# - name: Apply the Kubernetes config to the shell.
# ansible.builtin.lineinfile:
# path: /etc/environment
# line: 'KUBECONFIG=/etc/kubernetes/admin.conf'
# when: "api_status.failed"
# - name: Join worker nodes to cluster.
# hosts: [node-a, node-b]
# vars:
# join_template: ../templates/JoinConfiguration.yml.jinja2
# join_control_ip: 10.0.2.11
# join_bootstrap_token: "{{ secrets.bootstrap_token }}"
# vars_files:
# - ../vault.yml
# tasks:
# - name: Copy join configuration over.
# vars:
# join_worker_ip: "{{ ansible_default_ipv4.address }}"
# join_worker_name: "{{ ansible_hostname }}"
# ansible.builtin.template:
# src: "{{ join_template }}"
# dest: JoinConfiguration.yml
# mode: preserve
# - name: Join the nodes.
# ansible.builtin.command:
# kubeadm join --config JoinConfiguration.yml
# changed_when: true
- name: Install CNI.
gather_facts: false
hosts: control
tasks:
- name: Create Flannel namespace.
kubernetes.core.k8s:
state: present
kind: Namespace
name: kube-flannel
- name: Add privilege to the namespace.
kubernetes.core.k8s:
state: patched
kind: Namespace
name: kube-flannel
definition:
metadata:
labels:
pod-security.kubernetes.io/enforce: privileged
- name: Add Flannel repository.
kubernetes.core.helm_repository:
name: flannel
url: https://flannel-io.github.io/flannel/
state: present
- name: Install Flannel.
kubernetes.core.helm:
name: flannel
chart_ref: flannel/flannel
namespace: kube-flannel
values:
podCidr: 10.244.0.0/16
state: present
- name: >
Patch CoreDNS deployment so it still runs, even though the nodes don't
have a external provider yet installed.
kubernetes.core.k8s:
name: coredns
namespace: kube-system
kind: Deployment
state: present
definition:
- op: add
path: /spec/template/spec/tolerations/-
value:
key: node.cloudprovider.kubernetes.io/uninitialized
value: "true"
effect: NoSchedule
- name: Install Hetzner Cloud Controller.
gather_facts: false
hosts: control
vars_files:
- ../vault.yml
- ../secrets/tf_outputs.yml
tasks:
- name: Create `hcloud` secret.
kubernetes.core.k8s:
name: hcloud
namespace: kube-system
kind: Secret
state: present
definition:
apiVersion: v1
kind: Secret
metadata:
name: hcloud
namespace: kube-system
type: Opaque
data:
token: "{{ secrets.hcloud_token }}"
network: "{{ private_network_id.value }}"