Enable API on aggregator and provide tap/top instructions

Signed-off-by: Luc Perkins <[email protected]>

aggregator/README.md

@@ -13,12 +13,30 @@ This starts up the full scenario in the background, which includes:
   * 3 Vector agents emitting Syslog logs
   * 3 [Fluent-Bit] agents emitting logs generated by the `random` source
 
+## Aggregator output
+
 You can see the aggregator output in real-time by running this command:
 
 ```shell
 docker-compose logs --follow aggregator
 ```
 
+You can also see the aggregator output using [vector tap]:
+
+```shell
+vector tap
+```
+
+## Aggregator metrics
+
+You can see some realtime metrics for the aggregator using [vector top]:
+
+```shell
+vector top
+```
+
 [agent]: https://vector.dev/docs/setup/deployment/roles/#agent
 [aggregator]: https://vector.dev/docs/setup/deployment/roles/#aggregator
 [fluent-bit]: https://fluentbit.io
+[vector tap]: https://vector.dev/docs/reference/cli/#tap
+[vector top]: https://vector.dev/docs/reference/cli/#top

aggregator/docker-compose.yml

@@ -26,6 +26,7 @@ services:
     container_name: aggregator
     image: timberio/vector:nightly-alpine
     ports:
+      - 8686:8686
       - 9000:9000
       - 24224:24224
     environment:

aggregator/vector/aggregator/vector.toml

@@ -1,3 +1,8 @@
+[api]
+enabled = true
+address = "0.0.0.0:8686"
+playground = true
+
 [sources.vector_agents]
 type = "vector"
 address = "0.0.0.0:9000"