feat: Remove Fedora server as supported OS (#774)

README.md

@@ -48,7 +48,7 @@ With that out of the way please continue on if you are still interested...
 
 ### 💻 Systems
 
-- One or more nodes with a fresh install of [Fedora Server 37+](https://getfedora.org/en/server/download/) or [Ubuntu 22.04 Server](https://ubuntu.com/download/server) (not minimal).
+- One or more nodes with a fresh install of [Ubuntu 22.04 Server](https://ubuntu.com/download/server) (not minimal / not raspi edition).
   - These nodes can be ARM64/AMD64 bare metal or VMs.
   - An odd number of control plane nodes, greater than or equal to 3 is required if deploying more than one control plane node.
 - A [Cloudflare](https://www.cloudflare.com/) account with a domain, this will be managed by external-dns. You can [register new domains](https://www.cloudflare.com/products/registrar/) directly thru Cloudflare.
@@ -198,9 +198,9 @@ In order to expose services to the internet you will need to create a [Cloudflar
    task configure
    ```
 
-### ⚡ Preparing Fedora or Ubuntu Server with Ansible
+### ⚡ Preparing Ubuntu Server with Ansible
 
-📍 Here we will be running a Ansible Playbook to prepare Fedora or Ubuntu Server for running a Kubernetes cluster.
+📍 Here we will be running an Ansible Playbook to prepare Ubuntu server for running a Kubernetes cluster.
 
 📍 Nodes are not security hardened by default, you can do this with [dev-sec/ansible-collection-hardening](https://github.com/dev-sec/ansible-collection-hardening) or similar if supported. This is an advanced configuration and generally not recommended unless you want to [DevSecOps](https://www.ibm.com/topics/devsecops) your cluster and nodes.
 
@@ -226,7 +226,7 @@ In order to expose services to the internet you will need to create a [Cloudflar
    task ansible:ping
    ```
 
-5. Run the Fedora/Ubuntu Server Ansible prepare playbook
+5. Run the Ansible prepare playbook
 
    ```sh
    task ansible:prepare

ansible/inventory/group_vars/kubernetes/os.yml

@@ -2,21 +2,6 @@
 
 # ssh_authorized_keys: []
 
-fedora:
-  packages:
-    - dnf-plugin-system-upgrade
-    - dnf-utils
-    - hdparm
-    - htop
-    - ipvsadm
-    - lm_sensors
-    - nano
-    - nvme-cli
-    - socat
-    - python3-kubernetes
-    - python3-libselinux
-    - python3-pyyaml
-
 ubuntu:
   packages:
     - hdparm

ansible/playbooks/cluster-prepare.yml

@@ -21,25 +21,13 @@
         - name: Networking | Set hostname to inventory hostname
           ansible.builtin.hostname:
             name: "{{ inventory_hostname }}"
-        - name: Networking | Update /etc/hosts to include inventory hostname
+        - name: Networking | Update hosts file to include inventory hostname
           ansible.builtin.blockinfile:
             path: /etc/hosts
             block: |
               127.0.1.1   {{ inventory_hostname }}
 
-    - name: Packages | Fedora
+    - name: Packages
-      block:
-        - name: Packages | Install required packages
-          ansible.builtin.dnf:
-            name: "{{ fedora.packages | default([]) }}"
-            state: present
-            update_cache: true
-        - name: Packages | Remove leaf packages
-          ansible.builtin.dnf:
-            autoremove: true
-      when: ansible_facts['distribution'] == 'Fedora'
-
-    - name: Packages | Ubuntu
       block:
         - name: Packages | Install required packages
           ansible.builtin.apt:
@@ -55,7 +43,6 @@
             install_recommends: false
           notify: Reboot
           when: "'raspi' in ansible_kernel"
-      when: ansible_facts['distribution'] == 'Ubuntu'
 
     - name: Packages | Cilium CLI
       ansible.builtin.include_role:
@@ -78,20 +65,12 @@
 
     - name: System Configuration (1)
       block:
-        - name: System Configuration (1) | Disable firewalld | Fedora
+        - name: System Configuration (1) | Disable ufw
-          ansible.builtin.systemd:
-            service: firewalld.service
-            enabled: false
-            masked: true
-            state: stopped
-          when: ansible_facts['distribution'] == 'Fedora'
-        - name: System Configuration (1) | Disable ufw | Ubuntu
           ansible.builtin.systemd:
             service: ufw.service
             enabled: false
             masked: true
             state: stopped
-          when: ansible_facts['distribution'] == 'Ubuntu'
         - name: System Configuration (1) | Enable fstrim
           ansible.builtin.systemd:
             service: fstrim.timer
@@ -128,28 +107,15 @@
               net.bridge.bridge-nf-call-ip6tables: 1
               fs.inotify.max_user_watches: 524288
               fs.inotify.max_user_instances: 512
-        - name: System Configuration (2) | Disable swap | Fedora
+        - name: System Configuration (2) | Disable swap at runtime
-          ansible.builtin.dnf:
-            name: zram-generator-defaults
-            state: absent
-          when: ansible_facts['distribution'] == 'Fedora'
-        - name: System Configuration (2) | Disable swap at runtime | Ubuntu
           ansible.builtin.command: swapoff -a
-          when:
+          when: ansible_swaptotal_mb > 0
-            - ansible_facts['distribution'] == 'Ubuntu'
+        - name: System Configuration (2) | Disable swap at boot
-            - ansible_swaptotal_mb > 0
-        - name: System Configuration (2) | Disable swap at boot | Ubuntu
           ansible.posix.mount:
             name: "{{ item }}"
             fstype: swap
             state: absent
           loop: ["none", "swap"]
-          when: ansible_facts['distribution'] == 'Ubuntu'
-        - name: System Configuration (2) | Permissive SELinux | Fedora
-          ansible.posix.selinux:
-            state: permissive
-            policy: targeted
-          when: ansible_facts['distribution'] == 'Fedora'
       notify: Reboot
 
   handlers: