GH-214: [feat] Create configuration files for tempo, prometheus, and …

…grafana.

docker/grafana/datasources.yml

@@ -0,0 +1,47 @@
+apiVersion: 1
+
+datasources:
+  - name: Prometheus
+    type: prometheus
+    access: proxy
+    url: http://prometheus:9090
+    editable: false
+    jsonData:
+      httpMethod: POST
+      exemplarTraceIdDestinations:
+        - name: trace_id
+          datasourceUid: tempo
+  - name: Tempo
+    type: tempo
+    access: proxy
+    orgId: 1
+    url: http://tempo:3200
+    basicAuth: false
+    isDefault: true
+    version: 1
+    editable: false
+    apiVersion: 1
+    uid: tempo
+    jsonData:
+      httpMethod: GET
+      tracesToLogs:
+        datasourceUid: 'loki'
+      nodeGraph:
+        enabled: true
+  - name: Loki
+    type: loki
+    uid: loki
+    access: proxy
+    orgId: 1
+    url: http://loki:3100
+    basicAuth: false
+    isDefault: false
+    version: 1
+    editable: false
+    apiVersion: 1
+    jsonData:
+      derivedFields:
+        - datasourceUid: tempo
+          matcherRegex: \[.+,(.+?),
+          name: TraceID
+          url: $${__value.raw}

docker/prometheus/prometheus.yml

@@ -0,0 +1,12 @@
+global:
+  scrape_interval: 5s
+  evaluation_interval: 5s
+
+scrape_configs:
+  - job_name: 'prometheus'
+    static_configs:
+      - targets: ['prometheus:9090']
+  - job_name: 'user-service'
+    metrics_path: '/actuator/prometheus'
+    static_configs:
+      - targets: ['host.docker.internal:8080'] ## only for demo purposes don't use host.docker.internal in production

docker/tempo/tempo.yml

@@ -0,0 +1,12 @@
+server:
+  http_listen_port: 3200
+
+distributor:
+  receivers:
+    zipkin:
+
+storage:
+  trace:
+    backend: local
+    local:
+      path: /tmp/tempo/blocks