feat!: Use Ansible and Terraform to provision Nodes and DNS and create configure script (#84)

provision/ansible/playbooks/k3s-install.yml

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+---
+- hosts:
+    - master
+    - worker
+  become: true
+  gather_facts: true
+  any_errors_fatal: true
+  pre_tasks:
+    - name: Pausing for 5 seconds...
+      pause:
+        seconds: 5
+  tasks:
+    - name: Check if cluster is installed
+      ansible.builtin.stat:
+        path: "/etc/rancher/k3s/config.yaml"
+      register: k3s_check_installed
+      check_mode: false
+
+    - name: Set manifest facts
+      ansible.builtin.set_fact:
+        k3s_server_manifests_templates: []
+        k3s_server_manifests_urls: []
+      when: k3s_check_installed.stat.exists
+
+    - name: Install Kubernetes
+      include_role:
+        name: xanmanning.k3s
+        public: true
+
+    - name: Copy kubeconfig locally to /tmp
+      run_once: true
+      ansible.builtin.fetch:
+        src: "/etc/rancher/k3s/k3s.yaml"
+        dest: "/tmp/kubeconfig"
+        flat: true
+      when:
+        - k3s_control_node is defined
+        - k3s_control_node
+
+    - name: Update kubeconfig with the right IPv4 address
+      delegate_to: localhost
+      become: false
+      run_once: true
+      ansible.builtin.replace:
+        path: "/tmp/kubeconfig"
+        regexp: "https://127.0.0.1:6443"
+        replace: "https://{{ k3s_registration_address }}:6443"
+
+    - name: Remove deployed manifest templates
+      ansible.builtin.file:
+        path: "{{ k3s_server_manifests_dir }}/{{ item | basename | regex_replace('\\.j2$', '') }}"
+        state: absent
+      loop: "{{ k3s_server_manifests_templates }}"
+      when:
+        - k3s_server_manifests_templates
+        - k3s_server_manifests_templates | length > 0
+
+    - name: Remove deployed manifest urls
+      ansible.builtin.file:
+        path: "{{ k3s_server_manifests_dir }}/{{ item.filename }}"
+        state: absent
+      loop: "{{ k3s_server_manifests_urls }}"
+      when:
+        - k3s_server_manifests_urls
+        - k3s_server_manifests_urls | length > 0

provision/ansible/playbooks/k3s-nuke.yml

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+---
+- hosts:
+    - master
+    - worker
+  become: true
+  gather_facts: true
+  any_errors_fatal: true
+  pre_tasks:
+    - name: Pausing for 5 seconds...
+      pause:
+        seconds: 5
+  tasks:
+    - name: Kill k3s
+      ansible.builtin.command: /usr/local/bin/k3s-killall.sh
+    - name: Uninstall k3s
+      ansible.builtin.command:
+        cmd: /usr/local/bin/k3s-uninstall.sh
+        removes: /usr/local/bin/k3s-uninstall.sh
+    - name: Uninstall k3s agent
+      ansible.builtin.command:
+        cmd: /usr/local/bin/k3s-agent-uninstall.sh
+        removes: /usr/local/bin/k3s-agent-uninstall.sh
+    - name: Gather list of CNI files to delete
+      find:
+        paths: /etc/cni/net.d
+        patterns: "*"
+      register: files_to_delete
+    - name: Delete CNI files
+      ansible.builtin.file:
+        path: "{{ item.path }}"
+        state: absent
+      loop: "{{ files_to_delete.files }}"

provision/ansible/playbooks/ubuntu-prepare.yml

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+---
+- hosts:
+    - master
+    - worker
+  become: true
+  gather_facts: true
+  any_errors_fatal: true
+  pre_tasks:
+    - name: Pausing for 5 seconds...
+      pause:
+        seconds: 5
+  roles:
+    - ubuntu

provision/ansible/playbooks/ubuntu-upgrade.yml

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+---
+- hosts:
+    - master
+    - worker
+  become: true
+  gather_facts: true
+  any_errors_fatal: true
+  tasks:
+    - name: upgrade
+      ansible.builtin.apt:
+        upgrade: full
+        update_cache: true
+        cache_valid_time: 3600
+        autoclean: true
+        autoremove: true
+      register: apt_upgrade
+      retries: 5
+      until: apt_upgrade is success