https://github.com/meetmatt/metrics

Application metrics with TIG stack
https://github.com/meetmatt/metrics

docker grafana influxdb mysql nginx php redis restful-api slim-framework statsd telegraf

Last synced: 8 days ago
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Application metrics with TIG stack

• Host: GitHub
• URL: https://github.com/meetmatt/metrics
• Owner: meetmatt
• Created: 2019-01-30T07:19:20.000Z (almost 6 years ago)
• Default Branch: master
• Last Pushed: 2024-05-09T02:51:16.000Z (6 months ago)
• Last Synced: 2024-05-09T03:46:30.097Z (6 months ago)
• Topics: docker, grafana, influxdb, mysql, nginx, php, redis, restful-api, slim-framework, statsd, telegraf
• Language: PHP
• Homepage:
• Size: 626 KB
• Stars: 5
• Watchers: 1
• Forks: 1
• Open Issues: 39
• Metadata Files:
  • Readme: README.md

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README

        
# Metrics Demo

## Usage

- Install dependencies: `make`

- Be aware that composer is configured to ignore file system changes. You must run `make` each time you create, move, rename or delete files in `src`.

- Start the containers: `docker-compose up -d`

- Watch the client using the app: `docker-compose logs -f client`

- Open Grafana http://localhost:3000 (credentials = admin/admin)

- add data source (Configuration -> Data Sources -> Add Data Source): URL = http://influxdb:8086, db = `metrics`

- add dashboard (New Dashboard -> Import Dashboard -> Upload .json file) from `docker/grafana/dashboards`

- Scale client application to 10, 20, 40 instances and watch the changes on the dashboard: `make scale-up clients=10`

(`make scale-down` for downgrading the load back to 1 client again)

- watch all the containers live with `ctop`:

```bash

docker run -it --name ctop --rm -v /var/run/docker.sock:/var/run/docker.sock wrfly/ctop:latest

```

## Application

### ToDo list manager

See `test/support/todo.http`.

- Registration

- Login

- Get all lists

- Get one list

- Create list

- Delete list

- Get tasks

- Create task

- Mark task as done

- Mark task as not done

- Delete task

## TODO: Instrumentation

- HTTP response status metrics

- Response time metrics

- Business metrics (total/minute):

    - registrations

    - logins

    - created lists

    - created tasks

    - done tasks

    

## Degradation scenarios

1. Decrease/increase number of clients.

2. Decrease/increase wait time between client actions.

3. Decrease/increase number of php-fpm workers.

4. Decrease/increase size of nginx connection pool.

5. Drop/add mysql index.

6. Flush redis.

7. Decrease curl connection timeout on client.

8. Decrease curl operation timeout on client.

9. Add sleep in server index.php.