Port for web frontend

Target

80

Default

80

Port for web frontend

Target

443

Default

443

Port for Prometheus metrics

Target

9394

Default

9394

Contains all relevant configuration files.

Target

/config

This is the unique identifier of your server in the network. It cannot be safely changed later.

Default

example.com

Redis server hostname

Default

redis

Redis port

Default

6379

Postgres database hostname

Default

db

Postgres username

Default

mastodon

Postgres db name

Default

mastodon

Postgres password

Default

mastodon

Postgres port

Default

5432

Enable or disable Elasticsearch (requires a separate ES instance)

Default

false

Primary key for Active Record Encryption(https://github.com/mastodon/mastodon/pull/29831/files).

Deterministic key for Active Record Encryption(https://github.com/mastodon/mastodon/pull/29831/files).

Derivation salt for Active Record Encryption(https://github.com/mastodon/mastodon/pull/29831/files).

Browser session secret. Changing it will break all active browser sessions.

MFA secret. Changing it after initial setup will break two-factor authentication.

Push notification private key. Changing it after initial setup will break push notifications.

Push notification public key. Changing it after initial setup will break push notifications.

SMTP server for email notifications

Default

mail.example.com

SMTP server port

Default

25

SMTP username

SMTP password

From address for emails send from Mastodon

Default

notifications@example.com

Enable or disable S3 storage of uploaded files

Default

false

This can be set if you want your server identifier to be different to the subdomain hosting Mastodon. See https://docs.joinmastodon.org/admin/config/#basic(https://docs.joinmastodon.org/admin/config/#basic)

Default

mastodon.example.com

Elasticsearch server hostname

Default

es

Elasticsearch port

Default

9200

Elasticsearch username

Default

elastic

Elasticsearch password

Default

elastic

S3 bucket hostname

S3 bucket access key ID

S3 bucket secret access key

Alternate hostname for object fetching if you are front the S3 connections.

Only run the sidekiq service in this container instance. For large scale instances that need better queue handling.

Default

false

The name of the sidekiq queue to run in this container. See notes(https://docs.joinmastodon.org/admin/scaling/#sidekiq-queues).

Set to `true` on the main container if you're running additional sidekiq instances. It will run the `default` queue.

Default

false

The number of threads for sidekiq to use. See notes(https://docs.joinmastodon.org/admin/scaling/#sidekiq-threads).

Default

5

The size of the DB connection pool, must be *at least* the same as `SIDEKIQ_THREADS`. See notes(https://docs.joinmastodon.org/admin/scaling/#sidekiq-threads).

Default

5

Set to `true` to skip chown of /config on init. *READ THE APPLICATION NOTES BEFORE SETTING THIS*.

If set to `true`, Mastodon’s Ruby processes (web and Sidekiq) will enable the Prometheus instrumentation.

Container Variable: PUID

Default

99

Container Variable: PGID

Default

100

Container Variable: UMASK

Default

022