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CONTRIBUTING.md

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Contributing

There are multiple ways to develop on the scrutiny codebase locally. The two most popular are:

  • Docker Development Container - only requires docker
  • Run Components Locally - requires smartmontools, golang & nodejs installed locally

Docker Development

docker build -f docker/Dockerfile . -t analogj/scrutiny
docker run -it --rm -p 8080:8080 \
-v /run/udev:/run/udev:ro \
--cap-add SYS_RAWIO \
--device=/dev/sda \
--device=/dev/sdb \
analogj/scrutiny
/scrutiny/bin/scrutiny-collector-metrics run

Local Development

Frontend

The frontend is written in Angular. If you're working on the frontend and can use mocked data rather than a real backend, you can use

cd webapp/frontend
npm install
ng serve

However, if you need to also run the backend, and use real data, you'll need to run the following command:

cd webapp/frontend && ng build --watch --output-path=../../dist --deploy-url="/web/" --base-href="/web/" --prod

Note: if you do not add --prod flag, app will display mocked data for api calls.

Backend

If you're using the ng build command above to generate your frontend, you'll need to create a custom config file and override the web.src.frontend.path value.

# config file for local development. store as scrutiny.yaml
version: 1

web:
  listen:
    port: 8080
    host: 0.0.0.0
  database:
    # can also set absolute path here
    location: ./scrutiny.db
  src:
    frontend:
      path: ./dist


log:
  file: 'web.log' #absolute or relative paths allowed, eg. web.log
  level: DEBUG

Once you've created a config file, you can pass it to the scrutiny binary during startup.

go run webapp/backend/cmd/scrutiny/scrutiny.go start --config ./scrutiny.yaml

Now visit http://localhost:8080

Collector

brew install smartmontools
go run collector/cmd/collector-metrics/collector-metrics.go run --debug

Debugging

If you need more verbose logs for debugging, you can use the following environmental variables:

  • DEBUG=true - enables debug level logging on both the collector and webapp
  • COLLECTOR_DEBUG=true - enables debug level logging on the collector
  • SCRUTINY_DEBUG=true - enables debug level logging on the webapp

In addition, you can instruct scrutiny to write its logs to a file using the following environmental variables:

  • COLLECTOR_LOG_FILE=/tmp/collector.log - write the collector logs to a file
  • SCRUTINY_LOG_FILE=/tmp/web.log - write the webapp logs to a file

Finally, you can copy the files from the scrutiny container to your host using the following command(s)

docker cp scrutiny:/tmp/collector.log collector.log
docker cp scrutiny:/tmp/web.log web.log