feat: Add options for rate limit interval and burst

README.md

@@ -64,6 +64,15 @@ unless otherwise indicated.
   received by the journal daemon shall be forwarded to a traditional syslog
   daemon. Defaults to `false`.
 
+- `journald_rate_limit_interval_sec` - integer variable, in seconds, configures the
+  time interval within which only `journald_rate_limit_burst` messages are handled.
+  See `man 5 journald.conf` for more information.
+
+- `journald_rate_limit_burst` - integer variable, sets the upper limit of messages
+  from a service which are handled within the time defined by
+  `journald_rate_limit_interval_sec`.
+  See `man 5 journald.conf` for more information.
+
 ## Example Playbook
 
 ```yaml

defaults/main.yml

@@ -8,3 +8,5 @@ journald_per_user: false
 journald_compression: true
 journald_sync_interval: 0
 journald_forward_to_syslog: false
+journald_rate_limit_interval_sec: 30
+journald_rate_limit_burst: 10000

templates/journald.conf.j2

@@ -36,3 +36,5 @@ RuntimeMaxFileSize={{ journald_max_file_size }}M
 {# settings below here apply to all storage types #}
 Compress={{ journald_compression | bool | ternary("yes", "no") }}
 ForwardToSyslog={{ journald_forward_to_syslog | bool | ternary("yes", "no") }}
+RateLimitIntervalSec={{ journald_rate_limit_interval_sec }}s
+RateLimitBurst={{ journald_rate_limit_burst }}

tests/tests_example.yml

@@ -8,6 +8,8 @@
     journald_per_user: true
     journald_sync_interval: 1
     journald_forward_to_syslog: true
+    journald_rate_limit_burst: 2000
+    journald_rate_limit_interval_sec: 2
 
   tasks:
     - name: Run test
@@ -39,6 +41,18 @@
             "{{ __journald_dropin_dir }}/{{ __journald_dropin_conf }}"
           changed_when: false
 
+        - name: Verify that rate limit interval is set properly
+          command: >-
+            grep RateLimitIntervalSec=2s
+            "{{ __journald_dropin_dir }}/{{ __journald_dropin_conf }}"
+          changed_when: false
+
+        - name: Verify that rate limit burst is set properly
+          command: >-
+            grep RateLimitBurst=2000
+            "{{ __journald_dropin_dir }}/{{ __journald_dropin_conf }}"
+          changed_when: false
+
         - name: Verify that /var/log/journal/$MACHINE_ID/system.journal exists
           stat:
             path: /var/log/journal/{{ ansible_machine_id }}/system.journal