# What is Sentry? Sentry is a realtime event logging and aggregation platform. It specializes in monitoring errors and extracting all the information needed to do a proper post-mortem without any of the hassle of the standard user feedback loop. > [github.com/getsentry/sentry](https://github.com/getsentry/sentry) %%LOGO%% # How to use this image ## how to setup a full sentry instance 1. start a redis container docker run -d --name some-redis redis 2. start a database container: - Postgres (recommended by upstream): docker run -d --name some-postgres -e POSTGRES_PASSWORD=secret -e POSTGRES_USER=sentry postgres - MySQL (later steps assume PostgreSQL, replace the `--link some-postgres:postres` with `--link some-mysql:mysql`): docker run -d --name some-mysql -e MYSQL_ROOT_PASSWORD=secret -e MYSQL_DATABASE=sentry mysql 3. now start up sentry server docker run -d --name some-sentry --link some-redis:redis --link some-postgres:postgres sentry 4. if this is a new database, you'll need to run `sentry upgrade` docker run -it --rm --link some-postgres:postgres --link some-redis:redis sentry sentry upgrade **Note: the `-it` is important as the initial upgrade will prompt to create an initial user and will fail without it** 5. the default config needs a celery beat and celery workers, start as many workers as you need (each with a unique name) - using the celery image: docker run -d --name celery-beat --link some-redis:redis -e CELERY_BROKER_URL=redis://redis celery celery beat docker run -d --name celery-worker1 --link some-redis:redis -e CELERY_BROKER_URL=redis://redis celery - using the celery bundled with sentry docker run -d --name sentry-celery-beat --link some-redis:redis sentry sentry celery beat docker run -d --name sentry-celery1 --link some-redis:redis sentry sentry celery worker ### port mapping If you'd like to be able to access the instance from the host without the container's IP, standard port mappings can be used. Just add `-p 8080:9000` to the `docker run` arguments and then access either `http://localhost:8080` or `http://host-ip:8080` in a browser. ## configuring the initial user If you did not create a superuser during `sentry upgrade`, use the following to create one: docker run -it --rm --link some-postgres:postgres sentry sentry createsuperuser