feat(docker): docker-compose.yml to run Gossamer, Prometheus and Grafana

- Tailor docker-compose.yml for local development
- Add Gossamer to `docker-compose.yml`
- Add Grafana to `docker-compose.yml`
- Move prometheus.yml to `docker/prometheus/`
- Add Grafana configurations and provisioning to `docker/grafana`
- Remove unneeded Prometheus commands
- Do not map Prometheus server port, only expose to Grafana
- Add `/docker` to `.dockerignore`
- Set docker-compose.yml version to `'3'` for greater compatibility
- `docker-compose build` builds Gossamer image
- Add commented lines to persist Prometheus and Grafana data
- Update using Prometheus document page

.dockerignore

@@ -2,6 +2,7 @@
 /.githooks
 /.github
 !/.github/workflows/staging
+/docker
 /docs
 /.deepsource.toml
 /.dockerignore
@@ -12,5 +13,4 @@
 /docker-compose.yml
 /Dockerfile
 /Dockerfile.staging
-/prometheus.yml
 /README.md

docker-compose.yml

@@ -1,15 +1,60 @@
-version:  '3.7'
+# This docker-compose.yml configuration contains:
+# - a Gossamer node on the Kusama chain
+# - a Prometheus server scrapping metrics from Gossamer
+# - a Grafana server using the Prometheus server as source
+#
+# Prometheus and Grafana are both provisioned to give you a dashboard to play with.
+# They are tailored for local development, and Grafana gives you anonymous admin access.
+#
+# You can run all of the containers with: `docker-compose up`
+# Alternatively, you can run select containers with for example: `docker-compose up gossamer`
+#
+# To rebuild the Gossamer Docker image: `docker-compose build`
+
+version: '3'
+
+services:
+    gossamer:
+        image: chainsafe/gossamer
+        build: .
+        volumes:
+            # Remove with: docker volume rm gossamer
+            - gossamer:/data/gossamer
+        command:
+            - --basepath=/data/gossamer
+            - --chain=kusama
+            - --log=info
+            - --publish-metrics
+            - --metrics-address=:9876
+            - --pprofserver
+        ports:
+            - 6060:6060/tcp # Pprof server
+            - 7001:7001/tcp # Network port
+            - 8545:8545/tcp # RPC HTTP port
+            - 8546:8546/tcp # RPC Websocket port
+        expose:
+            - 9876/tcp # Prometheus metrics for Prometheus server
 
-services: 
     prometheus:
         image: prom/prometheus
         volumes:
-        - ./prometheus.yml:/etc/prometheus/prometheus.yml
-        command:
-        - '--config.file=/etc/prometheus/prometheus.yml'
-        - '--storage.tsdb.path=/prometheus'
-        - '--web.console.libraries=/usr/share/prometheus/console_libraries'
-        - '--web.console.templates=/usr/share/prometheus/consoles'
+            - ./docker/prometheus/prometheus.yml:/etc/prometheus/prometheus.yml:ro
+            # The following line can be uncommented to persist metrics data.
+            # - gossamer-prometheus:/prometheus
+        expose:
+            - 9090/tcp # Prometheus metrics for Grafana
+
+    grafana:
+        image: grafana/grafana-oss
         ports:
-        - 9090:9090
-        restart: always
+            - 3000:3000/tcp # HTTP Web interface at http://localhost:3000/
+        volumes:
+            - ./docker/grafana/grafana.ini:/etc/grafana/grafana.ini:ro
+            - ./docker/grafana/provisioning:/etc/grafana/provisioning:ro
+            # The following line can be uncommented to persist modifications.
+            # - gossamer-grafana:/var/lib/grafana
+
+volumes:
+    gossamer:
+    gossamer-prometheus:
+    gossamer-grafana:

docker/grafana/grafana.ini

@@ -0,0 +1,12 @@
+# See https://github.com/grafana/grafana/blob/main/conf/sample.ini
+
+[dashboards]
+min_refresh_interval = 5s
+default_home_dashboard_path = /etc/grafana/provisioning/dashboards/gossamer.json
+
+[users]
+allow_sign_up = false
+
+[auth.anonymous]
+enabled = true
+org_role = Admin