badges: fedmsg-hub: try to add systemd environment variables to limit 2 am work

roles/badges/backend/files/systemd/systemd-memory-limit.conf

@@ -0,0 +1,2 @@
+[Service]
+MemoryLimit=8G

roles/badges/backend/tasks/main.yml

@@ -14,6 +14,61 @@
   - badges
   - badges/backend
 
+- name: create systemd config directories
+  file: >
+    path="/etc/systemd/system/{{ item }}.service.d"
+    state=directory
+  with_items: 
+  - fedmsg-hub
+  notify:
+  - reload systemd
+  tags:
+  - badges/backend
+  - config
+  - service
+
+- name: install systemd config files (memory)
+  copy: >
+    src=systemd/systemd-memory-limit.conf
+    dest=/etc/systemd/system/{{ item }}.service.d/memory-limit.conf
+  with_items:
+  - fedmsg-hub
+  notify:
+  - reload systemd
+  - restart fedmsg-hub
+  tags:
+  - badges/backend
+  - config
+  - service
+
+- name: install systemd config files (restart)
+  template: >
+    src=systemd-restart-limit.conf.j2
+    dest=/etc/systemd/system/{{ item }}.service.d/restart.conf
+  with_items: 
+  - fedmsg-hub
+  notify:
+  - reload systemd
+  tags:
+  - badges/backend
+  - config
+  - service
+
+- name: install systemd config files (environment)
+  template: >
+    src=systemd-environment.conf.j2
+    dest=/etc/systemd/system/{{ item }}.service.d/environment.conf
+  with_items: 
+  - fedmsg-hub
+  notify:
+  - reload systemd
+  - restart fedmsg-hub
+  tags:
+  - badges/backend
+  - config
+  - service
+
+
 - name: copy database configuration
   template: >
     src={{ item }} dest="/etc/fedmsg.d/{{ item }}"

roles/badges/backend/templates/systemd-restart-limit.conf.j2

@@ -0,0 +1,6 @@
+[Service]
+{% if env == 'staging' %}
+RestartSec=600
+{% else %}
+RestartSec=10
+{% endif %}