Add docker-compose with prometheus and grafana (#495)

* Add docker-compose with prometheus and grafana

* Add dashbord installation

* Fix path to config file

tests/prometheus.yml

@@ -0,0 +1,46 @@
+version: '2.1'
+services:
+  onlyoffice-documentserver:
+    container_name: onlyoffice-documentserver
+    build:
+      context: ../.
+    depends_on:
+      - onlyoffice-statsd-exporter
+    environment:
+      - METRICS_ENABLED=${METRICS_ENABLED:-true}
+      - METRICS_HOST=${METRICS_HOST:-onlyoffice-statsd-exporter}
+      - METRICS_PORT=${METRICS_PORT:-9125}
+      - METRICS_PREFIX=${METRICS_PREFIX:-ds.}
+    stdin_open: true
+    restart: always
+    ports:
+      - '80:80'
+
+  onlyoffice-statsd-exporter:
+    container_name: onlyoffice-statsd-exporter
+    image: prom/statsd-exporter
+    command: --statsd.event-flush-interval=30000ms
+    ports:
+      - '9102:9102'
+      - '9125:9125/tcp'
+      - '9125:9125/udp'
+
+  onlyoffice-prometheus:
+    container_name: onlyoffice-prometheus
+    image: prom/prometheus
+    ports:
+      - '9090:9090'
+    volumes:
+      - ./prometheus/prometheus-scrape/statsd-exporter.yml:/etc/prometheus/prometheus.yml
+
+  grafana:
+    container_name: onlyoffice-grafana
+    image: bitnami/grafana
+    ports:
+      - '3000:3000'
+    environment:
+      - 'GF_SECURITY_ADMIN_PASSWORD=G0pGE4'
+    volumes:
+      - ./prometheus/grafana/conf/prometheus.yml:/opt/bitnami/grafana/conf/provisioning/datasources/prometheus.yml
+      - ./prometheus/grafana/conf/default-provider.yaml:/opt/bitnami/grafana/conf/provisioning/dashboards/default-provider.yaml
+      - ./prometheus/grafana/dashboards:/opt/bitnami/grafana/dashboards

tests/prometheus/grafana/conf/default-provider.yaml

@@ -0,0 +1,23 @@
+apiVersion: 1
+providers:
+  # <string> an unique provider name
+- name: 'default-provider'
+  # <int> org id. will default to orgId 1 if not specified
+  orgId: 1
+  # <string, required> name of the dashboard folder. Required
+  folder: dashboards
+  # <string> folder UID. will be automatically generated if not specified
+  folderUid: ''
+  # <string, required> provider type. Required
+  type: file
+  # <bool> disable dashboard deletion
+  disableDeletion: false
+  # <bool> enable dashboard editing
+  editable: true
+  # <int> how often Grafana will scan for changed dashboards
+  updateIntervalSeconds: 10
+  options:
+    # <string, required> path to dashboard files on disk. Required
+    path: /opt/bitnami/grafana/dashboards
+    # <bool> enable folders creation for dashboards
+    #foldersFromFilesStructure: true

tests/prometheus/grafana/conf/prometheus.yml

@@ -0,0 +1,6 @@
+apiVersion: 1
+datasources:
+  - name: Prometheus
+    type: prometheus
+    url: http://onlyoffice-prometheus:9090
+    editable: true

tests/prometheus/prometheus-scrape/statsd-exporter.yml

@@ -0,0 +1,6 @@
+scrape_configs:
+  - job_name: 'statsd'
+    scrape_interval: 30s
+    static_configs:
+      - targets:
+        - onlyoffice-statsd-exporter:9102