Added grafana to compose and conf for easier setup

conf/grafana_data_source.yml

@@ -0,0 +1,8 @@
+datasources:
+  - name: Loki
+    type: loki
+    access: proxy
+    url: http://loki:3100
+    isDefault: true
+    jsonData:
+      httpMethod: POST  

docker-compose.yml

@@ -17,6 +17,19 @@ services:
       - "3100:3100"
     networks:
       - scheduler
+  grafana:
+    image: 'grafana/grafana'
+    container_name: grafana
+    ports:
+      - '3000:3000'
+    networks:
+      - scheduler
+    volumes:
+      - ./conf/grafana_data_source.yml:/etc/grafana/provisioning/datasources/datasource.yml
+    environment:
+      - GF_SECURITY_ADMIN_PASSWORD=pfnirt                   # Change this to anything but admin to not have a password change page at startup
+      - GF_SECURITY_ADMIN_USER=admin
+      - GF_SECURITY_DISABLE_INITIAL_ADMIN_PASSWORD_CHANGE=true
 
 networks: 
   scheduler: