Disable earlyoom on staging instance

The staging instance is quite small and running the playbook fails
because earlyoom terminates its execution.

Author: jdno

ansible/roles/dev-desktop/tasks/dependencies.yml

@@ -16,7 +16,6 @@
       - clang
       - cmake
       - gcc-mingw-w64-x86-64 # Allows running `x check --target x86_64-pc-windows-gnu`
-      - earlyoom # Earlyoom kills processes using too much memory before they can cause trouble.
       - jq
       - libssl-dev
       - llvm

ansible/roles/dev-desktop/tasks/main.yml

@@ -1,5 +1,6 @@
 ---
 
+- include_tasks: oom.yml
 - include_tasks: dependencies.yml
 - include_tasks: podman.yml
 - include_tasks: quota.yml

ansible/roles/dev-desktop/tasks/oom.yml

@@ -0,0 +1,15 @@
+---
+# earlyoom kills processes using too much memory before they can cause trouble.
+- name: Install earlyoom
+  ansible.builtin.apt:
+    name: earlyoom
+    state: present
+
+# The staging instance is so small that earlyoom prevents Ansible from executing
+# the playbook successfully.
+- name: Disable earlyoom on staging
+  ansible.builtin.service:
+    name: earlyoom
+    enabled: no
+    state: stopped
+  when: ansible_hostname == "dev-desktop-staging"