feat: add promtail_extra_args variable to allow configuring the servi…

…ce arguments (#207) add promtail_extra_args
patrickjahns · Apr 8, 2024 · 772df61 · 772df61
1 parent a62c327
commit 772df61
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Showing 3 changed files with 4 additions and 1 deletion.
diff --git a/README.md b/README.md
@@ -24,6 +24,7 @@ All variables which can be overridden are stored in [defaults/main.yml](defaults
 | `promtail_version`                               | "2.9.4"                                                          | promtail package version. Also accepts *latest* as parameter.                                                          |
 | `promtail_custom_checksum`                       | ""                                                               | Custom checksum for custom build promtail binaries                                                                     |
 | `promtail_binary_local_dir`                      | ""                                                               | Allows to use local packages instead of ones distributed on github. As parameter it takes the path where zip archive of promtail is stored on host on which ansible is ran. |
+| `promtail_extra_args`                            | []                                                               | Allows to set extra arguments to the binary within the systemd service file. |
 | `promtail_config_dir`                            | /etc/promtail                                                    | Directory for storing promtail configuration file                                                                      |
 | `promtail_config_expand_env`                     | "false"                                                          | value of promtail [-config.expand-env](https://grafana.com/docs/loki/latest/clients/promtail/configuration/#use-environment-variables-in-the-configuration) option |
 | `promtail_config_file_sd_dir`                    | "{{ promtail_config_dir }}/file_sd"                              | Default directory for `file_sd` discovery                                                                              |

diff --git a/defaults/main.yml b/defaults/main.yml
@@ -14,6 +14,8 @@ promtail_user_additional_groups: "adm"
 promtail_systemd_service_template_file: service.j2
 promtail_systemd_service: promtail
 
+promtail_extra_args: []
+
 promtail_binary_local_dir: ""
 promtail_binary_propagate: False
 

diff --git a/templates/service.j2 b/templates/service.j2
@@ -11,7 +11,7 @@ RestartSec=5
 TimeoutSec=5
 User={{ promtail_system_user }}
 Group={{ promtail_system_group }}
-ExecStart=/usr/local/bin/promtail -config.file={{ promtail_config_file }} -log.level={{ promtail_log_level }} -config.expand-env={{ promtail_config_expand_env | lower }}
+ExecStart=/usr/local/bin/promtail -config.file={{ promtail_config_file }} -log.level={{ promtail_log_level }} -config.expand-env={{ promtail_config_expand_env | lower }} {{ promtail_extra_args | join(' ') }}
 
 [Install]
 WantedBy=multi-user.target