# Update from 2.9.0beta1 to beta4 failed **URL:** \ **Category:** Self-hosting\ **Created:** [April 19, 2022, 5:11pm UTC](https://meta.discourse.org/t/update-from-2-9-0beta1-to-beta4-failed/224766 "2022-04-19T17:11:46Z")\ **Posts on this page:** 1\ **Showing post:** 19
**Author:** ![sunjam](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/sunjam/32/175682_2.png) [@sunjam](https://meta.discourse.org/u/sunjam)\ **Post date:** [April 20, 2022, 7:21pm UTC](https://meta.discourse.org/t/update-from-2-9-0beta1-to-beta4-failed/224766/19 "2022-04-20T19:21:25Z")
> **app.yml** > > ```plaintext > ## this is the all-in-one, standalone Discourse Docker container template > ## > ## After making changes to this file, you MUST rebuild > ## /var/discourse/launcher rebuild app > ## > ## BE *VERY* CAREFUL WHEN EDITING! > ## YAML FILES ARE SUPER SUPER SENSITIVE TO MISTAKES IN WHITESPACE OR ALIGNMENT! > ## visit http://www.yamllint.com/ to validate this file as needed > > templates: > - "templates/postgres.template.yml" > - "templates/redis.template.yml" > - "templates/web.template.yml" > - "templates/web.ratelimited.template.yml" > ## Uncomment these two lines if you wish to add Lets Encrypt (https) > - "templates/web.ssl.template.yml" > - "templates/web.letsencrypt.ssl.template.yml" > - "templates/web.socketed.template.yml" > > ## which TCP/IP ports should this container expose? > ## If you want Discourse to share a port with another webserver like Apache or nginx, > ## see https://meta.discourse.org/t/17247 for details > expose: > # - "80:80" # http > # - "443:443" # https > links: > - link: > name: redis > alias: redis > - link: > name: data > alias: data > > params: > db_default_text_search_config: "pg_catalog.english" > redis_io_threads: "4" # 1 disables it, n>1 uses extra threads for IO writes > > ## Set db_shared_buffers to a max of 25% of the total memory. > ## will be set automatically by bootstrap based on detected RAM, or you can override > db_shared_buffers: "4096MB" > > ## can improve sorting performance, but adds memory usage per-connection > #db_work_mem: "40MB" > > ## Which Git revision should this container use? (default: tests-passed) > version: tests-passed > > env: > LANG: en_US.UTF-8 > # DISCOURSE_MAXMIND_LICENSE_KEY: removed > # DISCOURSE_DEFAULT_LOCALE: en > > ## How many concurrent web requests are supported? Depends on memory and CPU cores. > ## will be set automatically by bootstrap based on detected CPUs, or you can override > UNICORN_WORKERS: 8 > > ## TODO: The domain name this Discourse instance will respond to > ## Required. Discourse will not work with a bare IP number. > DISCOURSE_HOSTNAME: removed > > ## Uncomment if you want the container to be started with the same > ## hostname (-h option) as specified above (default "$hostname-$config") > #DOCKER_USE_HOSTNAME: true > > ## TODO: List of comma delimited emails that will be made admin and developer > ## on initial signup example 'user1@example.com,user2@example.com' > DISCOURSE_DEVELOPER_EMAILS: 'removed' > > ## TODO: The SMTP mail server used to validate new accounts and send notifications > # SMTP ADDRESS, username, and password are required > # WARNING the char '#' in SMTP password can cause problems! > DISCOURSE_SMTP_ADDRESS: removed > DISCOURSE_SMTP_PORT: 587 > DISCOURSE_SMTP_USER_NAME: removed > DISCOURSE_SMTP_PASSWORD: removed > #DISCOURSE_SMTP_ENABLE_START_TLS: true # (optional, default true) > DISCOURSE_REDIS_HOST: redis > > ## TODO: configure connectivity to the databases > #DISCOURSE_DB_SOCKET: '' > DISCOURSE_DB_USERNAME: discourse > DISCOURSE_DB_PASSWORD: discourse > DISCOURSE_DB_HOST: data > > ## If you added the Lets Encrypt template, uncomment below to get a free SSL certificate > LETSENCRYPT_ACCOUNT_EMAIL: removed > > ## The http or https CDN address for this Discourse instance (configured to pull) > ## see https://meta.discourse.org/t/14857 for details > #DISCOURSE_CDN_URL: https://discourse-cdn.example.com > > ## The Docker container is stateless; all data is stored in /shared > volumes: > - volume: > host: /var/discourse/shared/standalone > guest: /shared > - volume: > host: /var/discourse/shared/standalone/log/var-log > guest: /var/log > > ## Plugins go here > ## see https://meta.discourse.org/t/19157 for details > hooks: > before_code: > - exec: > cmd: > - apt-get update > - apt-get install -y libsodium-dev > after_code: > - exec: > cd: $home/plugins > cmd: > - git clone https://github.com/discourse/docker_manager.git > - git clone https://github.com/discourse/discourse-chat-integration.git > - git clone https://github.com/davidtaylorhq/discourse-whos-online.git > - git clone https://github.com/gdpelican/retort.git > #- git clone https://github.com/mozilla/discourse-expose-emails-in.git > #- git clone https://github.com/discourse/discourse-steam-login.git > #- git clone https://github.com/discourse/discourse-docs.git > - git clone https://github.com/discourse/discourse-solved.git > - git clone https://github.com/discourse/discourse-patreon.git > #- git clone https://github.com/discourse/discourse-encrypt.git > #- git clone https://github.com/paviliondev/discourse-custom-wizard.git > #- git clone https://github.com/discourse/discourse-assign.git > #- git clone https://github.com/discourse/discourse-checklist.git > #- git clone https://github.com/cpradio/discourse-plugin-vb-emoticons.git > #- git clone https://github.com/paviliondev/discourse-locations.git > #- git clone https://github.com/discourse/discourse-bcc.git > #- git clone https://github.com/discourse/discourse-calendar.git > #- git clone https://github.com/paviliondev/discourse-layouts.git > #- git clone https://github.com/barreeeiroo/discourse-discord-sync.git > #- git clone https://github.com/discourse/discourse-subscriptions > #- git clone https://github.com/discourse/discourse-oauth2-basic > #- git clone https://github.com/discourse/discourse-github.git > #- git clone https://github.com/discourse/discourse-automation.git > #- git clone https://github.com/communiteq/discourse-rocketchat.git > #- git clone https://github.com/LibreTranslate/discourse-translator.git > > ## Any custom commands to run after building > run: > - exec: echo "Beginning of custom commands" > ## If you want to set the 'From' email address for your first registration, uncomment and change: > ## After getting the first signup email, re-comment the line. It only needs to run once. > #- exec: rails r "SiteSetting.notification_email='info@unconfigured.discourse.org'" > - exec: echo "End of custom commands" > > ``` --- _[View the full topic](https://meta.discourse.org/t/update-from-2-9-0beta1-to-beta4-failed/224766)._