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Update readme with Prometheus integration info

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Ken Hibino
2021-12-18 07:05:19 -08:00
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<img src="https://user-images.githubusercontent.com/11155743/114745460-57760500-9d57-11eb-9a2c-43fa88171807.png" alt="Asynqmon logo" width="360px" />
# A modern web based tool for monitoring & administrating [Asynq](https://github.com/hibiken/asynq) queues, tasks and message broker
# A modern web based tool for monitoring & administrating [Asynq](https://github.com/hibiken/asynq) queues and tasks
## Overview
Asynqmon is a web UI tool for monitoring & administrating [Asynq](https://github.com/hibiken/asynq) queues and tasks.
It optionally integrates with Prometheus to display time-series data.
Asynqmon is both a library that you can include in your web application, as well as a binary that you can simply install and run.
## Version Compatibility
@@ -84,7 +87,7 @@ Here's the available flags:
_Note_: Use `--redis-url` to specify address, db-number, and password with one flag value; Alternatively, use `--redis-addr`, `--redis-db`, and `--redis-password` to specify each value.
| Flag | Env | Description | Default |
| ------------------------------- | --------------------- | ------------------------------------------------------------------- | ---------------- |
| --------------------------------- | ------------------------- | ------------------------------------------------------------------- | ---------------- |
| `--port`(int) | `PORT` | port number to use for web ui server | 8080 |
| `---redis-url`(string) | `REDIS_URL` | URL to redis server | "" |
| `--redis-addr`(string) | `REDIS_ADDR` | address of redis server to connect to | "127.0.0.1:6379" |
@@ -93,6 +96,18 @@ _Note_: Use `--redis-url` to specify address, db-number, and password with one f
| `--redis-cluster-nodes`(string) | `REDIS_CLUSTER_NODES` | comma separated list of host:port addresses of cluster nodes | "" |
| `--redis-tls`(string) | `REDIS_TLS` | server name for TLS validation used when connecting to redis server | "" |
| `--redis-insecure-tls`(bool) | `REDIS_INSECURE_TLS` | disable TLS certificate host checks | false |
| `--enable-metrics-exporter`(bool) | `ENABLE_METRICS_EXPORTER` | enable prometheus metrics exporter to expose queue metrics | false |
| `--prometheus-addr`(string) | `PROMETHEUS_ADDR` | address of prometheus server to query time series | "" |
### Integration with Prometheus
The binary supports two flags to enable integration with [Prometheus](https://prometheus.io/).
First, enable metrics exporter to expose queue metrics to Prometheus server by passing `--enable-metrics-exporter` flag.
The metrics data is now available under `/metrics` for Prometheus to scape.
Once the metrics data is collected by a Prometheus server, you can pass the address of the Prometheus server to asynqmon to query the time-series data.
The address can be specified via `--prometheus-addr`. This enables the metrics view on the Web UI.
### Examples
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# with a local binary; custom port and connect to redis server at localhost:6380
./asynqmon --port=3000 --redis-addr=localhost:6380
# with prometheus integration enabled
./asynqmon --enable-metrics-exporter --prometheus-addr=localhost:9090
# with Docker (connect to a Redis server running on the host machine)
docker run --rm \
--name asynqmon \