Feature/docker (#3)

* ➕ username

* ✈️ compose and prometheus configuration

* ✔️ compose configuration

* ✔️ remove compose option

README.md

@@ -22,6 +22,8 @@ REPO_NAME_CONTAINS=string-to-match-repositories-with # Default: ""
 CRONTAB_SCHEDULE=crontab-schedule-to-get-data-from-github # Default: "0 * * * *"
 ```
 
+**_NOTE:_** You also can use your username if you don't belong to any organization. In this case, use "USERNAME" instead of "ORG_NAME".
+
 Run the image:
 ```
 $ docker run --env-file .env -it -p 8001:8001 ghcr.io/grafana/github-traffic
@@ -36,3 +38,35 @@ Profit!
 
 Now you can collect those metrics as you would do with any other service. To visualize them, we provide an example/template Grafana dashboard: https://grafana.com/grafana/dashboards/15000
 
+## Docker compose
+In addition, a docker-compose.yaml file is provided. This file also run Prometheus and Grafana. 
+
+**_NOTE:_** You've to create the .env file with you configuration. 
+
+Run compose:
+```zsh
+❯ docker-compose up -d
+Creating network "github-traffic_default" with the default driver
+Creating github-traffic_traffic_1 ... done
+Creating github-traffic_prometheus_1 ... done
+Creating github-traffic_grafana_1    ... done
+```
+
+Now, you can access to:
+* Grafana: http://localhost:3000
+* Prometheus: http://localhost:9090
+* Github traffic:  http://localhost:8001
+
+Once you navigate to Grafana (http://localhost:3000), the user and password are admin/admin you have to configure a datasource to Prometheus (http://prometheus:9090) and import the dashboard with id 15000. 
+
+Remove containers:
+```zsh
+❯ docker-compose down
+Stopping github-traffic_grafana_1    ... done
+Stopping github-traffic_prometheus_1 ... done
+Stopping github-traffic_traffic_1    ... done
+Removing github-traffic_grafana_1    ... done
+Removing github-traffic_prometheus_1 ... done
+Removing github-traffic_traffic_1    ... done
+Removing network github-traffic_default
+```

docker-compose.yaml

@@ -0,0 +1,29 @@
+services:
+  grafana:
+    image: 'grafana/grafana-oss'
+    ports:
+      - "3000:3000"
+    links:
+      - prometheus
+    dns:
+      - 8.8.8.8
+  prometheus:
+    image: 'prom/prometheus'
+    volumes:
+      - ./prometheus/:/etc/prometheus/
+    command: 
+      - '--config.file=/etc/prometheus/prometheus.yaml'
+    ports:
+      - "9090:9090"
+    links:
+      - traffic
+  traffic:
+    image: 'ghcr.io/grafana/github-traffic'
+    ports: 
+      - "8001:8001"
+    env_file:
+      - .env
+    restart:
+      on-failure
+    dns:
+      - 8.8.8.8

prometheus/prometheus.yaml

@@ -0,0 +1,13 @@
+global:
+  scrape_interval: 30s
+  scrape_timeout: 10s
+
+rule_files:
+  - alert.yml
+
+scrape_configs:
+  - job_name: services
+    metrics_path: /metrics
+    static_configs:
+      - targets:
+          - 'traffic:8001'