Add a laconicd Grafana dashboard to monitoring stack (#799)

Part of https://www.notion.so/Monitoring-and-alerting-for-laconicd-86727c3b4dde4dc993d87d6e29f935fe

- Add a laconicd Grafana dashboard
  - Update fixturenet-laconicd script to expose metrics
- Upgrade Grafana version to avoid errors while saving changes made to a dashboard (see [thread](https://community.grafana.com/t/error-cannot-add-property-ishandled-object-is-not-extensible/109268))
-  Add an alert rule for Ajna watcher

Reviewed-on: #799
Co-authored-by: Prathamesh Musale <prathamesh.musale0@gmail.com>
Co-committed-by: Prathamesh Musale <prathamesh.musale0@gmail.com>

stack_orchestrator/data/stacks/monitoring/README.md

@@ -4,6 +4,7 @@
 * Comes with the following built-in exporters / dashboards:
   * Chain Head Exporter - for tracking chain heads given external ETH RPC endpoints
   * Watchers dashboard
+  * laconicd dashboard
   * [Prometheus Blackbox](https://grafana.com/grafana/dashboards/7587-prometheus-blackbox-exporter/) - for tracking HTTP endpoints
   * [NodeJS Application Dashboard](https://grafana.com/grafana/dashboards/11159-nodejs-application-dashboard/) - for default NodeJS metrics
   * [PostgreSQL Database](https://grafana.com/grafana/dashboards/9628-postgresql-database/) - for monitoring Postgres dbs
@@ -99,6 +100,7 @@ laconic-so --stack monitoring deploy create --spec-file monitoring-spec.yml --de
       - targets:
         - <HTTP_ENDPOINT_1>
         - <HTTP_ENDPOINT_2>
+        - <LACONICD_GQL_ENDPOINT>
   ```
 
 * Postgres (in-stack exporter):
@@ -116,6 +118,16 @@ laconic-so --stack monitoring deploy create --spec-file monitoring-spec.yml --de
     ```
   * Add database credentials to be used in `auth_modules` in the postgres-exporter config file (`monitoring-deployment/config/monitoring/postgres-exporter.yml`)
 
+* laconicd: update the `laconicd` job with a laconicd node's REST endpoint host and port:
+
+  ```yml
+  ...
+  - job_name: laconicd
+  static_configs:
+    - targets: ['example-host:1317']
+  ...
+  ```
+
 Note: Use `host.docker.internal` as host to access ports on the host machine
 
 ### Grafana Config

stack_orchestrator/data/stacks/monitoring/monitoring-watchers.md

@@ -46,6 +46,11 @@ Add the following scrape configs to prometheus config file (`monitoring-watchers
     static_configs:
       - targets:
         - <AZIMUTH_GATEWAY_GQL_ENDPOINT>
+        - <LACONICD_GQL_ENDPOINT>
+  ...
+  - job_name: laconicd
+  static_configs:
+    - targets: ['LACONICD_REST_HOST:LACONICD_REST_PORT']
   ...
   - job_name: azimuth
     scrape_interval: 10s
@@ -98,6 +103,16 @@ Add the following scrape configs to prometheus config file (`monitoring-watchers
         labels:
           instance: 'merkl_sushiswap'
           chain: 'filecoin'
+
+  - job_name: ajna
+    scrape_interval: 20s
+    metrics_path: /metrics
+    scheme: http
+    static_configs:
+      - targets: ['AJNA_WATCHER_HOST:AJNA_WATCHER_PORT']
+        labels:
+          instance: 'ajna'
+          chain: 'filecoin'
   ```
 
 Add scrape config as done above for any additional watcher to add it to the Watchers dashboard.