Follow this guide https://develop.sentry.dev/self-hosted/.

You need to generate the secret key and add it to config. You can use some password generator for that with long string of random characters like this password:

yc;"2YWZ~AKu9=B`[+.fp2rR(>/6Lk}v

To create a user if you did an unattended install like with command bash install.sh –no-user-prompt, cd to directory with sentry docker-compose file and run

docker-compose run --rm web createuser

• Debian 11
• Sentry 22.10.0

• https://forum.sentry.io/t/default-username-password/13246