如何使用docker设置哨兵

Question

I have found the official sentry image in dockerhub. But the document is incomplete and I can't setup the environment step by step.

We have to setup the database container first but none of them tell how to setup it at first. Specifically I don't know what are the username and password that sentry will use.

And I also get the following error when I run the sentry container:

sudo docker run --name some-sentry --link some-mysql:mysql -d sentry
e888fcf2976a9ce90f80b28bb4c822c07f7e0235e3980e2a33ea7ddeb0ff18ce

sudo docker logs some-sentry
Traceback (most recent call last):
  File "/usr/local/bin/sentry", line 9, in <module>
    load_entry_point('sentry==6.4.4', 'console_scripts', 'sentry')()
  File "/usr/local/lib/python2.7/site-packages/sentry/utils/runner.py", line 310, in main
    initializer=initialize_app,
  File "/usr/local/lib/python2.7/site-packages/logan/runner.py", line 167, in run_app
    configure_app(config_path=config_path, **kwargs)
  File "/usr/local/lib/python2.7/site-packages/logan/runner.py", line 89, in configure_app
    raise ValueError("Configuration file does not exist at %r" % (config_path,))
ValueError: Configuration file does not exist at '/.sentry/sentry.conf.py'

Answer 1

This is a moving target. I suggest checking https://hub.docker.com/_/sentry/ for updates as their documentation is pretty good.

Circa version 8 you can easily convert those instructions to use docker-compose

docker-compose.yml

version: "2"
services:
  redis:
    image: redis:3.0.7
    networks:
    - sentry-net

  postgres:
    image: postgres:9.6.1
    environment:
    - POSTGRES_USER:sentry
    - POSTGRES_PASSWORD:sentry
    # volumes:
    # - ./data:/var/lib/postgresql/data:rw
    networks:
    - sentry-net

  sentry:
    image: sentry:${SENTRY_TAG}
    depends_on:
    - redis
    - postgres
    environment:
    - SENTRY_REDIS_HOST=redis
    - SENTRY_SECRET_KEY=${SECRET}
    - SENTRY_POSTGRES_HOST=postgres
    ports:
    - 9000:9000
    networks:
    - sentry-net

  sentry_celery_beat:
    image: sentry:${SENTRY_TAG}
    depends_on:
    - sentry
    environment:
    - SENTRY_REDIS_HOST=redis
    - SENTRY_SECRET_KEY=${SECRET}
    - SENTRY_POSTGRES_HOST=postgres
    command: "sentry run cron"
    networks:
    - sentry-net

  sentry_celery_worker:
    image: sentry:${SENTRY_TAG}
    depends_on:
    - sentry
    environment:
    - SENTRY_REDIS_HOST=redis
    - SENTRY_SECRET_KEY=${SECRET}
    - SENTRY_POSTGRES_HOST=postgres
    command: "sentry run worker"
    networks:
    - sentry-net

networks:
  sentry-net:

.env

SENTRY_TAG=8.10.0

Run docker run --rm sentry:8.10.0 config generate-secret-key and add the secret

.env updated

SENTRY_TAG=8.10.0
SECRET=somelongsecretgeneratedbythetool

First boot:

docker-compose up -d postgres
docker-compose up -d redis
docker-compose run sentry sentry upgrade

Full boot

docker-compose up -d

Debug

docker-compose ps
docker-compose logs --tail=10

Answer 2

Take a look at the sentry.conf.py file that is part of the official sentry docker image. It gets a bunch of properties from the environment eg SENTRY_DB_NAME, SENTRY_DB_USER. Below is an excerpt from the file.

os.getenv('SENTRY_DB_PASSWORD')
or os.getenv('MYSQL_ENV_MYSQL_PASSWORD')
or os.getenv('MYSQL_ENV_MYSQL_ROOT_PASSWORD')

So as for your question about how to sepcify database password it must be set in environment variables. You can do this by running:

sudo docker run --name some-sentry --link some-mysql:mysql \
    -e SENTRY_DB_USER=XXX                                  \
    -e SENTRY_DB_PASSWORD=XXX                              \
    -d sentry

As for your issue with the exception you seem to be missing a config file Configuration file does not exist at '/.sentry/sentry.conf.py' That file is copied to /home/user/.sentry/sentry.conf.py inside the container. I am not sure why your sentry install is looking for it at /.sentry/sentry.conf.py. There may be an environment variable or a setting that controls this or this may just be a bug in the container.

Answer 3

This works for me https://github.com/slafs/sentry-docker and we don't have to setup database or others. I will learn more about the configuration in detail later.

Answer 4

Here my docker compose yml, with official image from https://hub.docker.com/_/sentry/ :

https://gist.github.com/ebuildy/270f4ef3abd41e1490c1

Run:

docker-compose -p sw up -d
docker exec -ti sw_sentry_1 sentry upgrade

Thats it!