Open telemetry

.gitignore

@@ -19,3 +19,5 @@ pom.xml.asc
 /logs
 /keystore.jks
 /.envrc
+/.envrc-docker
+/opentelemetry-javaagent.jar

Dockerfile

@@ -1,11 +1,12 @@
-FROM clojure:temurin-11-lein-2.9.10-alpine as builder
+FROM clojure:temurin-17-lein-jammy as builder
 
 RUN mkdir /app
 WORKDIR /app
 COPY . /app/
 RUN lein uberjar
 
-FROM gcr.io/distroless/java:11
-COPY --from=builder /app/target/eduhub-rio-mapper.jar /eduhub-rio-mapper.jar
+# FROM gcr.io/distroless/java:11
+# COPY --from=builder /app/target/eduhub-rio-mapper.jar /eduhub-rio-mapper.jar
+# COPY --from=builder /app/opentelemetry-javaagent.jar /opentelemetry-javaagent.jar
 
-ENTRYPOINT ["java", "-jar", "/eduhub-rio-mapper.jar"]
+ENTRYPOINT ["java", "-jar", "/app/target/eduhub-rio-mapper.jar"]

Makefile

@@ -0,0 +1,20 @@
+.PHONY: lint test check clean
+
+lint:
+	clojure -M:lint
+
+test:
+	clojure -M:test
+
+check: lint test
+
+clean:
+	rm -rf classes target
+
+opentelemetry-javaagent.jar:
+	curl -L https://github.com/open-telemetry/opentelemetry-java-instrumentation/releases/latest/download/opentelemetry-javaagent.jar -o $@
+
+.PHONY: docker-build test lint check
+
+docker-build: Dockerfile docker-compose.yml opentelemetry-javaagent.jar
+	docker-compose build

dev-infra/prometheus.yml

@@ -0,0 +1,41 @@
+# my global config
+global:
+  scrape_interval: 15s
+  evaluation_interval: 30s
+  # scrape_timeout is set to the global default (10s).
+
+  external_labels:
+    monitor: codelab
+    foo: bar
+
+#rule_files:
+#  - "first.rules"
+#  - "my/*.rules"
+
+scrape_configs:
+  - job_name: scrape-static
+
+    honor_labels: true
+    # scrape_interval is defined by the configured global (15s).
+    # scrape_timeout is defined by the global default (10s).
+
+    # metrics_path defaults to '/metrics'
+    # scheme defaults to 'http'.
+    scheme: http
+
+    static_configs:
+      - targets: ["localhost:9090"]
+        labels:
+          service: prometheus
+#      - targets: ["host.docker.internal:8080"]
+#        labels:
+#          service: eduhub-gateway
+      - targets: ["worker:9464"]
+        labels:
+          service: worker
+      - targets: ["api:3000"]
+        labels:
+          service: api
+      - targets: ["api:9464"]
+        labels:
+          service: api

docker-compose.yml

@@ -0,0 +1,47 @@
+services:
+  redis:
+    image: redis:7-alpine
+    restart: always
+    ports:
+      - '6380:6379'
+    command: redis-server --save 20 1 --loglevel warning
+    volumes:
+      - redis:/data
+  prometheus:
+    image: prom/prometheus
+    ports:
+      - "9090:9090"
+    volumes:
+      - ./dev-infra/prometheus.yml:/etc/prometheus/prometheus.yml
+  worker:
+    image: edumapper
+    env_file:
+      - .envrc-docker # read environment from local direnv settings
+    environment:
+      OTEL_METRICS_EXPORTER: prometheus
+      OTEL_EXPORTER_PROMETHEUS_ENDPOINT: http://localhost:9464/metrics
+      OTEL_SERVICE_NAME: edumapper-worker
+      OTEL_LOGS_EXPORTER: none
+      OTEL_TRACES_EXPORTER: none
+      JAVA_TOOL_OPTIONS: -javaagent:./opentelemetry-javaagent.jar
+    command: worker
+    ports:
+      - "9465:9464"
+  api:
+    image: edumapper
+    env_file:
+      - .envrc-docker # read environment from local direnv settings
+    environment:
+      OTEL_METRICS_EXPORTER: prometheus
+      OTEL_EXPORTER_PROMETHEUS_ENDPOINT: http://localhost:9464/metrics
+      OTEL_SERVICE_NAME: edumapper-api
+      OTEL_LOGS_EXPORTER: none
+      OTEL_TRACES_EXPORTER: none
+      JAVA_TOOL_OPTIONS: -javaagent:./opentelemetry-javaagent.jar
+    ports:
+      - "3000:3000"
+      - "9464:9464"
+    command: serve-api
+volumes:
+  redis:
+    driver: local