add grafana metric dashboard example

example/grafana/Dockerfile

@@ -0,0 +1,22 @@
+FROM golang:1.21-alpine AS builder
+
+WORKDIR /project
+
+COPY go.mod go.sum ./
+COPY main.go ./
+COPY config.yml ./config.yml
+
+RUN go mod download
+RUN CGO_ENABLED=0 go build -a -o example main.go
+
+FROM alpine:3.17.1
+
+WORKDIR /app
+
+RUN apk --no-cache add ca-certificates
+
+USER nobody
+COPY --from=builder --chown=nobody:nobody /project/example .
+COPY --from=builder --chown=nobody:nobody /project/config.yml ./config.yml
+
+ENTRYPOINT ["./example"]

example/grafana/config.yml

@@ -0,0 +1,16 @@
+hosts:
+  - couchbase:8091
+username: user
+password: password
+bucketName: dcp-test
+dcp:
+  group:
+    name: groupName
+    membership:
+      type: static
+metadata:
+  type: couchbase
+  config:
+    bucket: dcp-test
+    scope: _default
+    collection: _default

example/grafana/couchbase/Dockerfile

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+FROM couchbase:7.6.2
+
+COPY configure.sh /opt/couchbase
+RUN chmod +x /opt/couchbase/configure.sh
+
+CMD ["/opt/couchbase/configure.sh"]

example/grafana/couchbase/configure.sh

@@ -0,0 +1,29 @@
+#!/bin/bash
+
+# Start Couchbase server in background
+/entrypoint.sh couchbase-server &
+
+# Wait for Couchbase to start
+sleep 10
+
+# Setup cluster
+couchbase-cli cluster-init -c 127.0.0.1:8091 \
+  --cluster-username user \
+  --cluster-password password \
+  --services data,index,query,fts,eventing,analytics \
+  --cluster-ramsize 1024 \
+  --cluster-index-ramsize 256 \
+  --cluster-fts-ramsize 256 \
+  --cluster-eventing-ramsize 256 \
+  --cluster-analytics-ramsize 1024
+
+# Create a bucket
+couchbase-cli bucket-create -c 127.0.0.1:8091 \
+  --username user \
+  --password password \
+  --bucket dcp-test \
+  --bucket-type couchbase \
+  --bucket-ramsize 256
+
+# Keep the container running
+tail -f /dev/null

example/grafana/docker-compose.yml

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+version: '3.9'
+
+volumes:
+  prometheus_data: { }
+  grafana_data: { }
+
+services:
+  go-dcp:
+    build: .
+    ports:
+      - "8080:8080"
+    expose:
+      - 8080
+    depends_on:
+      - couchbase
+
+  couchbase:
+    build: ./couchbase
+    ports:
+      - "8091-8094:8091-8094"
+      - "11210:11210"
+    expose:
+      - 8091
+    environment:
+      - COUCHBASE_ADMINISTRATOR_USERNAME=user
+      - COUCHBASE_ADMINISTRATOR_PASSWORD=password
+
+  prometheus:
+    image: prom/prometheus:v2.53.1
+    container_name: prometheus
+    volumes:
+      - ./prometheus:/etc/prometheus
+      - prometheus_data:/prometheus
+    ports:
+      - "9090:9090"
+    expose:
+      - 9090
+
+  grafana:
+    image: grafana/grafana:10.0.0
+    container_name: grafana
+    volumes:
+      - grafana_data:/var/lib/grafana
+      - ./grafana/provisioning:/etc/grafana/provisioning
+    environment:
+      - GF_AUTH_DISABLE_LOGIN_FORM=true
+      - GF_AUTH_ANONYMOUS_ORG_ROLE=Admin
+      - GF_AUTH_ANONYMOUS_ENABLED=true
+    ports:
+      - "3000:3000"
+    expose:
+      - 3000
+    depends_on:
+      - prometheus

example/grafana/go.mod

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+module grafana
+
+go 1.21
+
+require (
+	github.com/Trendyol/go-dcp v1.1.50
+	github.com/couchbase/gocb/v2 v2.9.1
+)
+
+require (
+	github.com/andybalholm/brotli v1.1.0 // indirect
+	github.com/ansrivas/fiberprometheus/v2 v2.6.1 // indirect
+	github.com/asaskevich/EventBus v0.0.0-20200907212545-49d423059eef // indirect
+	github.com/beorn7/perks v1.0.1 // indirect
+	github.com/cespare/xxhash/v2 v2.2.0 // indirect
+	github.com/couchbase/gocbcore/v10 v10.5.1 // indirect
+	github.com/couchbase/gocbcoreps v0.1.3 // indirect
+	github.com/couchbase/goprotostellar v1.0.2 // indirect
+	github.com/couchbaselabs/gocbconnstr/v2 v2.0.0-20240607131231-fb385523de28 // indirect
+	github.com/davecgh/go-spew v1.1.1 // indirect
+	github.com/emicklei/go-restful/v3 v3.11.0 // indirect
+	github.com/go-logr/logr v1.4.1 // indirect
+	github.com/go-logr/stdr v1.2.2 // indirect
+	github.com/go-openapi/jsonpointer v0.19.6 // indirect
+	github.com/go-openapi/jsonreference v0.20.2 // indirect
+	github.com/go-openapi/swag v0.22.3 // indirect
+	github.com/gofiber/adaptor/v2 v2.2.1 // indirect
+	github.com/gofiber/fiber/v2 v2.52.5 // indirect
+	github.com/gogo/protobuf v1.3.2 // indirect
+	github.com/golang/protobuf v1.5.4 // indirect
+	github.com/golang/snappy v0.0.4 // indirect
+	github.com/google/gnostic-models v0.6.8 // indirect
+	github.com/google/gofuzz v1.2.0 // indirect
+	github.com/google/uuid v1.6.0 // indirect
+	github.com/grpc-ecosystem/go-grpc-middleware v1.4.0 // indirect
+	github.com/josharian/intern v1.0.0 // indirect
+	github.com/json-iterator/go v1.1.12 // indirect
+	github.com/klauspost/compress v1.17.6 // indirect
+	github.com/mailru/easyjson v0.7.7 // indirect
+	github.com/mattn/go-colorable v0.1.13 // indirect
+	github.com/mattn/go-isatty v0.0.20 // indirect
+	github.com/mattn/go-runewidth v0.0.15 // indirect
+	github.com/mhmtszr/concurrent-swiss-map v1.0.8 // indirect
+	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
+	github.com/modern-go/reflect2 v1.0.2 // indirect
+	github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 // indirect
+	github.com/prometheus/client_golang v1.19.1 // indirect
+	github.com/prometheus/client_model v0.5.0 // indirect
+	github.com/prometheus/common v0.48.0 // indirect
+	github.com/prometheus/procfs v0.12.0 // indirect
+	github.com/rivo/uniseg v0.4.4 // indirect
+	github.com/sirupsen/logrus v1.9.3 // indirect
+	github.com/valyala/bytebufferpool v1.0.0 // indirect
+	github.com/valyala/fasthttp v1.52.0 // indirect
+	github.com/valyala/tcplisten v1.0.0 // indirect
+	go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc v0.49.0 // indirect
+	go.opentelemetry.io/otel v1.24.0 // indirect
+	go.opentelemetry.io/otel/metric v1.24.0 // indirect
+	go.opentelemetry.io/otel/trace v1.24.0 // indirect
+	go.uber.org/multierr v1.11.0 // indirect
+	go.uber.org/zap v1.27.0 // indirect
+	golang.org/x/net v0.24.0 // indirect
+	golang.org/x/oauth2 v0.17.0 // indirect
+	golang.org/x/sync v0.7.0 // indirect
+	golang.org/x/sys v0.19.0 // indirect
+	golang.org/x/term v0.19.0 // indirect
+	golang.org/x/text v0.14.0 // indirect
+	golang.org/x/time v0.3.0 // indirect
+	google.golang.org/appengine v1.6.8 // indirect
+	google.golang.org/genproto/googleapis/rpc v0.0.0-20240401170217-c3f982113cda // indirect
+	google.golang.org/grpc v1.63.2 // indirect
+	google.golang.org/protobuf v1.33.0 // indirect
+	gopkg.in/inf.v0 v0.9.1 // indirect
+	gopkg.in/yaml.v2 v2.4.0 // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
+	k8s.io/api v0.29.4 // indirect
+	k8s.io/apimachinery v0.29.4 // indirect
+	k8s.io/client-go v0.29.4 // indirect
+	k8s.io/klog/v2 v2.110.1 // indirect
+	k8s.io/kube-openapi v0.0.0-20231010175941-2dd684a91f00 // indirect
+	k8s.io/utils v0.0.0-20230726121419-3b25d923346b // indirect
+	sigs.k8s.io/json v0.0.0-20221116044647-bc3834ca7abd // indirect
+	sigs.k8s.io/structured-merge-diff/v4 v4.4.1 // indirect
+	sigs.k8s.io/yaml v1.3.0 // indirect
+)