Update 3 files

- /roles/loki/templates/promtail-config.yml.j2
- /roles/loki/templates/docker-compose.yml.j2
- /roles/loki/tasks/main.yml

roles/loki/tasks/main.yml

@@ -15,6 +15,7 @@
     - "{{ loki_config_dir }}"
     - "{{ loki_data_dir }}"
     - "{{ promtail_config_dir }}"
+    - "{{ promtail_data_dir }}"
   become: yes
 
 - name: Create Loki internal directories with correct permissions

roles/loki/templates/docker-compose.yml.j2

@@ -26,6 +26,7 @@ services:
     command: -config.file=/etc/promtail/promtail-config.yml
     volumes:
       - "{{ promtail_config_dir }}:/etc/promtail"
+      - "{{ promtail_data_dir }}:/var/lib/promtail"
       - "/var/log:/var/log:ro"
       - "/var/lib/docker/containers:/var/lib/docker/containers:ro"
       - "/var/run/docker.sock:/var/run/docker.sock:ro"

roles/loki/templates/promtail-config.yml.j2

@@ -3,10 +3,10 @@ server:
   grpc_listen_port: 0
 
 positions:
-  filename: {{ promtail_data_dir }}/positions.yaml
+  filename: /var/lib/promtail/positions.yaml
 
 clients:
-  - url: http://{{ loki_server_host }}:{{ loki_server_port }}/loki/api/v1/push
+  - url: http://loki:3100/loki/api/v1/push
 
 scrape_configs:
   - job_name: system