From bbf645e6bf979ce53a26fa8db7f7362acfe67305 Mon Sep 17 00:00:00 2001
From: exu <mrc@frm01.net>
Date: Mon, 14 Oct 2024 21:07:54 +0200
Subject: [PATCH] Add zram generator automation

---
 .../files/etc/systemd/zram-generator.conf       |  3 +++
 roles/config/tasks/main.yml                     | 17 +++++++++++++++++
 2 files changed, 20 insertions(+)
 create mode 100644 roles/config/files/etc/systemd/zram-generator.conf

diff --git a/roles/config/files/etc/systemd/zram-generator.conf b/roles/config/files/etc/systemd/zram-generator.conf
new file mode 100644
index 00000000..dd997c96
--- /dev/null
+++ b/roles/config/files/etc/systemd/zram-generator.conf
@@ -0,0 +1,3 @@
+[zram0]
+zram-size = ram / 2
+compression-algorithm = zstd
diff --git a/roles/config/tasks/main.yml b/roles/config/tasks/main.yml
index 41ad02e7..8eee9884 100644
--- a/roles/config/tasks/main.yml
+++ b/roles/config/tasks/main.yml
@@ -111,6 +111,12 @@
     scope: user
   tags: services
 
+- name: Reload system systemd services
+  ansible.builtin.systemd_service:
+    daemon_reload: true
+  become: true
+  tags: services
+
 - name: Enable fstrim
   ansible.builtin.systemd_service:
     name: fstrim.timer
@@ -119,6 +125,17 @@
   become: true
   tags: services
 
+- name: Enable zram generator
+  ansible.builtin.systemd_service:
+    name: "systemd-zram-setup@zram0.service"
+    state: "started"
+    enabled: true
+  when:
+    - ('zram-generator' in ansible_facts.packages)
+    - ('zswap.enabled=0' in {{ lookup('ansible.builtin.file', '/proc/cmdline') }})
+  become: true
+  tags: services
+
 - name: Enable btrfsmaintenance timers
   ansible.builtin.systemd_service:
     name: "{{ item }}"