chore: use docker compose for otel-collector in Justfile (#2768)

Rather than using docker run.

Justfile

@@ -219,17 +219,11 @@ debug *args:
 # `just otel-dev` with any args you would pass to `ftl dev`. To stop the otel stream, run
 # `just otel-stop` in a third terminal tab.
 otel-stream:
-  docker run \
-    -p ${OTEL_GRPC_PORT}:${OTEL_GRPC_PORT} \
-    -p 55679:55679 \
-    otel/opentelemetry-collector:0.104.0 2>&1 | sed 's/\([A-Z].* #\)/\
-  \1/g'
-
-# Stop the docker container running otel.
-otel-container-id := `docker ps -f ancestor=otel/opentelemetry-collector:0.104.0 | tail -1 | cut -d " " -f1`
+  docker compose --profile infra up otel-collector
 
+# Stop the otel collector container.
 otel-stop:
-  docker stop "{{otel-container-id}}"
+  docker compose --profile infra down otel-collector
 
 # Run `ftl dev` with the given args after setting the necessary envar.
 otel-dev *args:

docker-compose.yml

@@ -25,11 +25,11 @@ services:
     platform: linux/amd64
     restart: unless-stopped
     stdin_open: true # docker run -i
-    tty: true        # docker run -t
+    tty: true # docker run -t
     ports:
       - 3000:3000 # Portal Endpoint
-      - ${OTEL_GRPC_PORT}:4317 # OTLP GRPC Collector
-      - ${OTEL_HTTP_PORT}:4318 # OTLP HTTP Collector
+      - ${OTEL_GRPC_PORT:-4317}:4317 # OTLP GRPC Collector
+      - ${OTEL_HTTP_PORT:-4317}:4318 # OTLP HTTP Collector
     environment:
       - GF_SECURITY_ADMIN_PASSWORD=admin
     volumes:
@@ -43,6 +43,7 @@ services:
     ports:
       - 4317:4317 # OTLP gRPC receiver
       - 4318:4318 # OTLP http receiver
+      - 55679:55679
   localstack:
     image: localstack/localstack
     profiles:
@@ -54,4 +55,4 @@ services:
       DEBUG: 1
 
 volumes:
-  grafana-storage: {}
+  grafana-storage: {}