Setup public_endpoint for loki

roles/log-collector/templates/loki-config.yaml.j2

 auth_enabled: false
 
 server:
-  http_listen_address: 127.0.0.1
   http_listen_port: 3100
-  grpc_listen_address: 127.0.0.1
   grpc_listen_port: 9095
 
 ingester:

roles/prometheus/files/grafana/provisioning/datasources/loki.yaml

@@ -3,6 +3,6 @@ datasources:
   - name: Loki
     type: loki
     access: proxy
-    url: http://localhost:3100
+    url: http://log-collector.infra.bitmask.net:3100
     jsonData:
       maxLines: 1000

services.yml.loki

@@ -125,6 +125,17 @@ prometheus:
       port: 9115
       scheme: http
       enable_sso_proxy: true
+    - name: loki
+      port: 3100
+      scheme: http
+      extra_nginx_config: |
+        location ^~ /api/datasources/proxy/\d+/loki/api/v1/tail {
+            proxy_pass http://be_loki_3100_prometheus;
+            proxy_http_version 1.1;
+            proxy_set_header  Upgrade $http_upgrade;
+            proxy_set_header  Connection "upgrade";
+            proxy_set_header Host $host;
+        }
     - name: grafana
       port: 2929
       scheme: https