Enables swap

Fixes wrong path in swapfile

infra.yaml

@@ -24,3 +24,5 @@
     - role: firewall
       when: "role_config.firewall_enable"
       become: true
+    - role: swap
+      become: true

inventory/group_vars/all.yml

@@ -33,3 +33,10 @@ migration_url: "s3-mig.forgejo.dev"
 
 forgejo_ssh_port: "22"
 forgejo_release: "1.19.0-2"
+
+#
+# Swap config
+#
+
+swap_size: "2048"
+swap_file: "/swapfile"

roles/swap/tasks/main.yml

@@ -0,0 +1,36 @@
+---
+- name: Check if the swap file exists
+  ansible.builtin.stat:
+    path: "{{ swap_file }}"
+  register: swap_file_check
+
+- name: Create the swap file
+  ansible.builtin.command: fallocate -l {{ swap_size }}M {{ swap_file }}
+  when: not swap_file_check.stat.exists
+
+- name: Create the wap space
+  ansible.builtin.command: dd if=/dev/zero of={{ swap_file }} bs=1M count={{ swap_size }}
+  when: not swap_file_check.stat.exists
+
+- name: Set permissions on swap file
+  ansible.builtin.file:
+    path: "{{ swap_file }}"
+    mode: 0600
+
+- name: Format the swap file
+  ansible.builtin.command: mkswap {{ swap_file }}
+  when: not swap_file_check.stat.exists
+
+- name: Add swap to fstab
+  ansible.builtin.lineinfile:
+    dest: /etc/fstab
+    regexp: "{{ swap_file }}"
+    line: "{{ swap_file }} none swap sw 0 0"
+
+- name: Turn on swap
+  ansible.builtin.command: swapon -a
+
+- name: Set swapiness level
+  ansible.posix.sysctl:
+    name: vm.swappiness
+    value: "60"