From 13cded188f00669103ab8e34dd7691c8c49db86b Mon Sep 17 00:00:00 2001
From: Sebastian Mark <smark@posteo.net>
Date: Wed, 4 Sep 2024 21:27:49 +0200
Subject: [PATCH] break: migrate back to bare-metal (and ansible)
MIME-Version: 1.0
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- remove docker-compose.yml
- add ansible playbook for k3s and argocd deployment
- update renovate custom manager for k3s version
- update README.md with new instructions

🤖
---
 .renovaterc.json   | 12 +++++++++
 README.md          |  8 +++---
 docker-compose.yml | 20 ---------------
 playbook.yml       | 61 ++++++++++++++++++++++++++++++++++++++++++++++
 4 files changed, 77 insertions(+), 24 deletions(-)
 delete mode 100644 docker-compose.yml
 create mode 100644 playbook.yml

diff --git a/.renovaterc.json b/.renovaterc.json
index 5e8645f..05025e2 100644
--- a/.renovaterc.json
+++ b/.renovaterc.json
@@ -4,6 +4,18 @@
     "local>infrastructure/renovate-config"
   ],
   "customManagers": [
+    {
+      "customType": "regex",
+      "description": "k3s",
+      "fileMatch": [
+        "playbook\\.yml"
+      ],
+      "matchStrings": [
+        "\\s+k3s_version:\\s(?<currentValue>.*)"
+      ],
+      "depNameTemplate": "k3s-io/k3s",
+      "datasourceTemplate": "github-releases"
+    },
     {
       "customType": "regex",
       "description": "ArgoCD",
diff --git a/README.md b/README.md
index c774bf3..e61d651 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
-# k3s Kubernetes + Baseline
+# k3s Kubernetes + ArgoCD + Baseline
 
 * [k3s](https://docs.k3s.io/)
 * [ArgoCD](https://argoproj.github.io/cd/)
@@ -10,13 +10,13 @@
   * [keel](https://keel.sh)
   * [reloader](https://github.com/stakater/Reloader)
 
-## Run (k3s + baseline)
+## Run (Deploy k3s + ArgoCD + Baseline)
 
-`docker compose up`
+`ansible-playbook k3s_boostrap.yml -i <host|ip>,`
 
 ### Get kubeconfig
 
-`docker compose exec -it k3s kubectl config view --flatten`
+`cat /etc/rancher/k3s/k3s.yml`
 
 ### Add Agents
 
diff --git a/docker-compose.yml b/docker-compose.yml
deleted file mode 100644
index 6d22520..0000000
--- a/docker-compose.yml
+++ /dev/null
@@ -1,20 +0,0 @@
-services:
-  k3s:
-    image: rancher/k3s:v1.30.4-k3s1
-    command:
-      - server
-      - --disable=traefik
-      - --tls-san=k8s.smsvc.net
-    hostname: k8s.smsvc.net
-    restart: always
-    privileged: true
-    cgroup: host
-    network_mode: host
-    volumes:
-      - k3s-data:/var/lib/rancher/k3s/
-      - k3s-run:/run/
-      - ./argocd-bootstrap/:/var/lib/rancher/k3s/server/manifests/argocd-bootstrap/
-
-volumes:
-  k3s-data:
-  k3s-run:
diff --git a/playbook.yml b/playbook.yml
new file mode 100644
index 0000000..ea49cd1
--- /dev/null
+++ b/playbook.yml
@@ -0,0 +1,61 @@
+# vim: set ft=yaml.ansible:
+---
+- name: Install k3s server
+  hosts: all
+  gather_facts: false
+  tags: k3s-server
+
+  vars:
+    k3s_version: v1.30.4+k3s1
+
+  tasks:
+    - name: Get k3s installed version
+      ansible.builtin.command: k3s --version
+      register: k3s_version_output
+      check_mode: false
+      changed_when: false
+      ignore_errors: true
+
+    - name: Set k3s installed version
+      when: k3s_version_output.rc == 0
+      ansible.builtin.set_fact:
+        installed_k3s_version: "{{ k3s_version_output.stdout_lines[0].split(' ')[2] }}"
+
+    - name: Download and install/update k3s
+      when: (k3s_version_output.rc != 0) or (installed_k3s_version != k3s_version)
+      block:
+        - name: Download K3s install script
+          ansible.builtin.get_url:
+            url: https://get.k3s.io
+            dest: /usr/local/bin/k3s_install.sh
+            mode: "755"
+        - name: Install k3s server
+          ansible.builtin.command: "k3s_install.sh"
+          environment:
+            K3S_NODE_NAME: "{{ inventory_hostname }}"
+            INSTALL_K3S_CHANNEL: "{{ k3s_version }}"
+            INSTALL_K3S_EXEC: "--disable=traefik --tls-san {{ inventory_hostname }}"
+          changed_when: false
+
+    - name: Start and enable k3s server
+      ansible.builtin.service:
+        name: k3s.service
+        state: started
+        enabled: true
+
+    - name: Add restart cronjob
+      ansible.builtin.cron:
+        name: "restart k3s (and regenerate certs if necessary)"
+        special_time: monthly
+        job: "systemctl restart k3s"
+
+- name: Deploy ArgoCD
+  hosts: all
+  gather_facts: false
+  tags: baseline
+  tasks:
+    - name: Copy manifest
+      ansible.builtin.copy:
+        src: argocd-bootstrap/
+        dest: /var/lib/rancher/k3s/server/manifests/argocd-bootstrap/
+        mode: "0755"