computer-playbook/roles/docker-mastodon/templates/env.j2

# Configuration file for mastodon
# @see https://docs.joinmastodon.org/admin/config
# @see https://github.com/mastodon/mastodon/blob/main/.env.production.sample


LOCAL_DOMAIN={{domains[application_id]}}
ALTERNATE_DOMAINS="{{ domains.mastodon_alternates | join(',') }}"
SINGLE_USER_MODE={{applications.mastodon.single_user_mode}}

# Credentials

# Secrets
# -------
# Make sure to use `bundle exec rails secret` to generate secrets
# -------
SECRET_KEY_BASE=    {{applications.mastodon.credentials.secret_key_base}}
OTP_SECRET=         {{applications.mastodon.credentials.otp_secret}}

# Web Push
# --------
# Generate with `bundle exec rails mastodon:webpush:generate_vapid_key`
# --------
VAPID_PRIVATE_KEY=  {{applications.mastodon.credentials.vapid.private_key}}
VAPID_PUBLIC_KEY=   {{applications.mastodon.credentials.vapid.public_key}}

# Encryption secrets
# ------------------
# Must be available (and set to same values) for all server processes
# These are private/secret values, do not share outside hosting environment
# Use `bin/rails db:encryption:init` to generate fresh secrets
# Do NOT change these secrets once in use, as this would cause data loss and other issues
ACTIVE_RECORD_ENCRYPTION_DETERMINISTIC_KEY=     {{applications.mastodon.credentials.active_record_encryption.deterministic_key}}
ACTIVE_RECORD_ENCRYPTION_KEY_DERIVATION_SALT=   {{applications.mastodon.credentials.active_record_encryption.key_derivation_salt}}
ACTIVE_RECORD_ENCRYPTION_PRIMARY_KEY=           {{applications.mastodon.credentials.active_record_encryption.primary_key}}

DB_HOST={{database_host}}
DB_PORT={{database_port}}
DB_NAME={{database_name}}
DB_USER={{database_username}}
DB_PASS={{database_password}}

REDIS_HOST=redis
REDIS_PORT=6379
REDIS_PASSWORD=

SMTP_SERVER={{system_email.host}}
SMTP_PORT={{system_email.port}}
SMTP_LOGIN={{system_email.username}}
SMTP_PASSWORD={{system_email.password}}
SMTP_AUTH_METHOD=plain
SMTP_OPENSSL_VERIFY_MODE=none
SMTP_ENABLE_STARTTLS=auto
SMTP_FROM_ADDRESS=Mastodon <{{system_email.from}}>

{% if applications[application_id].oidc.enabled | bool %}
################################### 
# OpenID Connect settings
###################################
# @see https://github.com/mastodon/mastodon/pull/16221
# @see https://stackoverflow.com/questions/72081776/how-mastodon-configured-login-using-sso

OIDC_ENABLED={{ applications[application_id].oidc.enabled | string | lower }}
OIDC_DISPLAY_NAME="{{primary_domain | upper}} SSO"
OIDC_ISSUER={{oidc.client.issuer_url}}
OIDC_DISCOVERY=true
OIDC_SCOPE="openid,profile,email"
OIDC_UID_FIELD=preferred_username                       # @see https://stackoverflow.com/questions/72108087/how-to-set-the-username-of-mastodon-by-log-in-via-keycloak
OIDC_CLIENT_ID={{oidc.client.id}}
OIDC_REDIRECT_URI=https://{{domains[application_id]}}/auth/auth/openid_connect/callback
OIDC_SECURITY_ASSUME_EMAIL_IS_VERIFIED=true
OIDC_CLIENT_SECRET={{oidc.client.secret}}
OMNIAUTH_ONLY=true                                      # uncomment to only use OIDC for login / registration buttons
ALLOW_UNSAFE_AUTH_PROVIDER_REATTACH=true
ONE_CLICK_SSO_LOGIN=true
{% endif %}