gotosocial/example/config.yaml

#  GoToSocial
#  Copyright (C) 2021-2023 GoToSocial Authors admin@gotosocial.org

#  This program is free software: you can redistribute it and/or modify
#  it under the terms of the GNU Affero General Public License as published by
#  the Free Software Foundation, either version 3 of the License, or
#  (at your option) any later version.

#  This program is distributed in the hope that it will be useful,
#  but WITHOUT ANY WARRANTY; without even the implied warranty of
#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#  GNU Affero General Public License for more details.

#  You should have received a copy of the GNU Affero General Public License
#  along with this program.  If not, see <http://www.gnu.org/licenses/>.

###########################
##### GENERAL CONFIG ######
###########################

# String. Log level to use throughout the application. Must be lower-case.
# Options: ["trace","debug","info","warn","error","fatal"]
# Default: "info"
log-level: "info"

# Bool. Log database queries when log-level is set to debug or trace.
# This setting produces verbose logs, so it's better to only enable it
# when you're trying to track an issue down.
# Options: [true, false]
# Default: false
log-db-queries: false

# String. Application name to use internally.
# Examples: ["My Application","gotosocial"]
# Default: "gotosocial"
application-name: "gotosocial"

# String. The user that will be shown instead of the landing page. if no user is set, the landing page will be shown.
# Examples: "admin"
# Default: ""
landing-page-user: ""

# String. Hostname that this server will be reachable at. Defaults to localhost for local testing,
# but you should *definitely* change this when running for real, or your server won't work at all.
# DO NOT change this after your server has already run once, or you will break things!
# Examples: ["gts.example.org","some.server.com"]
# Default: "localhost"
host: "localhost"

# String. Domain to use when federating profiles. This is useful when you want your server to be at
# eg., "gts.example.org", but you want the domain on accounts to be "example.org" because it looks better
# or is just shorter/easier to remember.
#
# To make this setting work properly, you need to redirect requests at "example.org/.well-known/webfinger"
# to "gts.example.org/.well-known/webfinger" so that GtS can handle them properly.
#
# You should also redirect requests at "example.org/.well-known/nodeinfo" in the same way.
#
# You should also redirect requests at "example.org/.well-known/host-meta" in the same way. This endpoint
# is used by a number of clients to discover the API endpoint to use when the host and account domain are
# different.
#
# An empty string (ie., not set) means that the same value as 'host' will be used.
#
# DO NOT change this after your server has already run once, or you will break things!
#
# Please read the appropriate section of the installation guide before you go messing around with this setting:
# https://docs.gotosocial.org/installation_guide/advanced/#can-i-host-my-instance-at-fediexampleorg-but-have-just-exampleorg-in-my-username
#
# Examples: ["example.org","server.com"]
# Default: ""
account-domain: ""

# String. Protocol to use for the server. Only change to http for local testing!
# This should be the protocol part of the URI that your server is actually reachable on. So even if you're
# running GoToSocial behind a reverse proxy that handles SSL certificates for you, instead of using built-in
# letsencrypt, it should still be https.
# Options: ["http","https"]
# Default: "https"
protocol: "https"

# String. Address to bind the GoToSocial server to.
# This can be an IPv4 address or an IPv6 address (surrounded in square brackets), or a hostname.
# The default value will bind to all interfaces, which makes the server
# accessible by other machines. For most setups there is no need to change this.
# If you are using GoToSocial in a reverse proxy setup with the proxy running on
# the same machine, you will want to set this to "localhost" or an equivalent,
# so that the proxy can't be bypassed.
# Examples: ["0.0.0.0", "172.128.0.16", "localhost", "[::]", "[2001:db8::fed1]"]
# Default: "0.0.0.0"
bind-address: "0.0.0.0"

# Int. Listen port for the GoToSocial webserver + API. If you're running behind a reverse proxy and/or in a docker,
# container, just set this to whatever you like (or leave the default), and make sure it's forwarded properly.
# If you are running with built-in letsencrypt enabled, and running GoToSocial directly on a host machine, you will
# probably want to set this to 443 (standard https port), unless you have other services already using that port.
# This *MUST NOT* be the same as the letsencrypt port specified below, unless letsencrypt is turned off.
# Examples: [443, 6666, 8080]
# Default: 8080
port: 8080

# Array of string. CIDRs or IP addresses of proxies that should be trusted when determining real client IP from behind a reverse proxy.
# If you're running inside a Docker container behind Traefik or Nginx, for example, add the subnet of your docker network,
# or the gateway of the docker network, and/or the address of the reverse proxy (if it's not running on the host network).
# Example: ["127.0.0.1/32", "172.20.0.1"]
# Default: ["127.0.0.1/32", "::1"] (localhost ipv4 + ipv6)
trusted-proxies:
  - "127.0.0.1/32"
  - "::1"

############################
##### DATABASE CONFIG ######
############################

# Config pertaining to the Gotosocial database connection

# String. Database type.
# Options: ["postgres","sqlite"]
# Default: "postgres"
db-type: "postgres"

# String. Database address or parameters.
#
# For Postgres, this should be the address or socket at which the database can be reached.
#
# For Sqlite, this should be the path to your sqlite database file. Eg., /opt/gotosocial/sqlite.db.
# If the file doesn't exist at the specified path, it will be created.
# If just a filename is provided (no directory) then the database will be created in the same directory
# as the GoToSocial binary.
# If address is set to :memory: then an in-memory database will be used (no file).
# WARNING: :memory: should NOT BE USED except for testing purposes.
#
# Examples: ["localhost","my.db.host","127.0.0.1","192.111.39.110",":memory:", "sqlite.db"]
# Default: ""
db-address: ""

# Int. Port for database connection.
# Examples: [5432, 1234, 6969]
# Default: 5432
db-port: 5432

# String. Username for the database connection.
# Examples: ["mydbuser","postgres","gotosocial"]
# Default: ""
db-user: ""

# String. Password to use for the database connection
# Examples: ["password123","verysafepassword","postgres"]
# Default: ""
db-password: ""

# String. Name of the database to use within the provided database type.
# Examples: ["mydb","postgres","gotosocial"]
# Default: "gotosocial"
db-database: "gotosocial"

# String. Disable, enable, or require SSL/TLS connection to the database.
# If "disable" then no TLS connection will be attempted.
# If "enable" then TLS will be tried, but the database certificate won't be checked (for self-signed certs).
# If "require" then TLS will be required to make a connection, and a valid certificate must be presented.
# Options: ["disable", "enable", "require"]
# Default: "disable"
db-tls-mode: "disable"

# String. Path to a CA certificate on the host machine for db certificate validation.
# If this is left empty, just the host certificates will be used.
# If filled in, the certificate will be loaded and added to host certificates.
# Examples: ["/path/to/some/cert.crt"]
# Default: ""
db-tls-ca-cert: ""

# Int. Number to multiply by CPU count to set permitted total of open database connections (in-use and idle).
# You can use this setting to tune your database connection behavior, though most admins won't need to touch it.
#
# Example values for multiplier 8:
#
# 1 cpu = 08 open connections
# 2 cpu = 16 open connections
# 4 cpu = 32 open connections
#
# Example values for multiplier 4:
#
# 1 cpu = 04 open connections
# 2 cpu = 08 open connections
# 4 cpu = 16 open connections
#
# A multiplier of 8 is a sensible default, but you may wish to increase this for instances
# running on very performant hardware, or decrease it for instances using v. slow CPUs.
#
# If you set the multiplier to less than 1, only one open connection will be used regardless of cpu count.
#
# PLEASE NOTE!!: This setting currently only applies for Postgres. SQLite will always use 1 connection regardless
# of what is set here. This behavior will change in future when we implement better SQLITE_BUSY handling.
# See https://github.com/superseriousbusiness/gotosocial/issues/1407 for more details.
#
# Examples: [16, 8, 10, 2]
# Default: 8
db-max-open-conns-multiplier: 8

# String. SQLite journaling mode.
# SQLite only -- unused otherwise.
# If set to empty string, the sqlite default will be used.
# See: https://www.sqlite.org/pragma.html#pragma_journal_mode
# Examples: ["DELETE", "TRUNCATE", "PERSIST", "MEMORY", "WAL", "OFF"]
# Default: "WAL"
db-sqlite-journal-mode: "WAL"

# String. SQLite synchronous mode.
# SQLite only -- unused otherwise.
# If set to empty string, the sqlite default will be used.
# See: https://www.sqlite.org/pragma.html#pragma_synchronous
# Examples: ["OFF", "NORMAL", "FULL", "EXTRA"]
# Default: "NORMAL"
db-sqlite-synchronous: "NORMAL"

# Byte size. SQlite cache size.
# SQLite only -- unused otherwise.
# If set to empty string or zero, the sqlite default (2MiB) will be used.
# See: https://www.sqlite.org/pragma.html#pragma_cache_size
# Examples: ["0", "2MiB", "8MiB", "64MiB"]
# Default: "8MiB"
db-sqlite-cache-size: "8MiB"

# Duration. SQlite busy timeout.
# SQLite only -- unused otherwise.
# If set to empty string or zero, the sqlite default will be used.
# See: https://www.sqlite.org/pragma.html#pragma_busy_timeout
# Examples: ["0s", "1s", "30s", "1m", "5m"]
# Default: "5s"
db-sqlite-busy-timeout: "5m"

cache:
  # Cache configuration options:
  #
  # max-size   = maximum cached objects count
  # ttl        = cached object lifetime
  # sweep-freq = frequency to look for stale cache objects
  #              (zero will disable cache sweeping)

  #############################
  #### VISIBILITY CACHES ######
  #############################
  #
  # Configure Status and account 
  # visibility cache.

  visibility-max-size: 2000
  visibility-ttl: "30m"
  visibility-sweep-freq: "1m"

  gts:
    ###########################
    #### DATABASE CACHES ######
    ###########################
    #
    # Configure GTS database
    # model caches.

    account-max-size: 2000
    account-ttl: "30m"
    account-sweep-freq: "1m"

    block-max-size: 100
    block-ttl: "30m"
    block-sweep-freq: "1m"

    domain-block-max-size: 2000
    domain-block-ttl: "24h"
    domain-block-sweep-freq: "1m"

    emoji-max-size: 2000
    emoji-ttl: "30m"
    emoji-sweep-freq: "1m"

    emoji-category-max-size: 100
    emoji-category-ttl: "30m"
    emoji-category-sweep-freq: "1m"

    follow-max-size: 2000
    follow-ttl: "30m"
    follow-sweep-freq: "1m"

    follow-request-max-size: 2000
    follow-request-ttl: "30m"
    follow-request-sweep-freq: "1m"

    media-max-size: 1000
    media-ttl: "30m"
    media-sweep-freq: "1m"

    mention-max-size: 2000
    mention-ttl: "30m"
    mention-sweep-freq: "1m"

    notification-max-size: 1000
    notification-ttl: "30m"
    notification-sweep-freq: "1m"

    report-max-size: 100
    report-ttl: "30m"
    report-sweep-freq: "1m"

    status-max-size: 2000
    status-ttl: "30m"
    status-sweep-freq: "1m"

    status-fave-max-size: 2000
    status-fave-ttl: "30m"
    status-fave-sweep-freq: "1m"

    tombstone-max-size: 500
    tombstone-ttl: "30m"
    tombstone-sweep-freq: "1m"

    user-max-size: 500
    user-ttl: "30m"
    user-sweep-freq: "1m"

    webfinger-max-size": 250
    webfinger-ttl: "24h"
    webfinger-sweep-freq": "1m"

######################
##### WEB CONFIG #####
######################

# Config pertaining to templating and serving of web pages/email notifications and the like

# String. Directory from which gotosocial will attempt to load html templates (.tmpl files).
# Examples: ["/some/absolute/path/", "./relative/path/", "../../some/weird/path/"]
# Default: "./web/template/"
web-template-base-dir: "./web/template/"

# String. Directory from which gotosocial will attempt to serve static web assets (images, scripts).
# Examples: ["/some/absolute/path/", "./relative/path/", "../../some/weird/path/"]
# Default: "./web/assets/"
web-asset-base-dir: "./web/assets/"

###########################
##### INSTANCE CONFIG #####
###########################

# Config pertaining to instance federation settings, pages to hide/expose, etc.

# Bool. Allow unauthenticated users to make queries to /api/v1/instance/peers?filter=open in order
# to see a list of instances that this instance 'peers' with. Even if set to 'false', then authenticated
# users (members of the instance) will still be able to query the endpoint.
# Options: [true, false]
# Default: false
instance-expose-peers: false

# Bool. Allow unauthenticated users to make queries to /api/v1/instance/peers?filter=suspended in order
# to see a list of instances that this instance blocks/suspends. This will also allow unauthenticated
# users to see the list through the web UI. Even if set to 'false', then authenticated users (members
# of the instance) will still be able to query the endpoint.
# Options: [true, false]
# Default: false
instance-expose-suspended: false

# Bool. Allow unauthenticated users to view /about/suspended,
# showing the HTML rendered list of instances that this instance blocks/suspends.
# Options: [true, false]
# Default: false
instance-expose-suspended-web: false

# Bool. Allow unauthenticated users to make queries to /api/v1/timelines/public in order
# to see a list of public posts on this server. Even if set to 'false', then authenticated
# users (members of the instance) will still be able to query the endpoint.
# Options: [true, false]
# Default: false
instance-expose-public-timeline: false

# Bool. This flag tweaks whether GoToSocial will deliver ActivityPub messages
# to the shared inbox of a recipient, if one is available, instead of delivering
# each message to each actor who should receive a message individually.
#
# Shared inbox delivery can significantly reduce network load when delivering
# to multiple recipients share an inbox (eg., on large Mastodon instances).
#
# See: https://www.w3.org/TR/activitypub/#shared-inbox-delivery
#
# Options: [true, false]
# Default: true
instance-deliver-to-shared-inboxes: true

###########################
##### ACCOUNTS CONFIG #####
###########################

# Config pertaining to creation and maintenance of accounts on the server, as well as defaults for new accounts.

# Bool. Do we want people to be able to just submit sign up requests, or do we want invite only?
# Options: [true, false]
# Default: true
accounts-registration-open: true

# Bool. Do sign up requests require approval from an admin/moderator before an account can sign in/use the server?
# Options: [true, false]
# Default: true
accounts-approval-required: true

# Bool. Are sign up requests required to submit a reason for the request (eg., an explanation of why they want to join the instance)?
# Options: [true, false]
# Default: true
accounts-reason-required: true

# Bool. Allow accounts on this instance to set custom CSS for their profile pages and statuses.
# Enabling this setting will allow accounts to upload custom CSS via the /user settings page,
# which will then be rendered on the web view of the account's profile and statuses.
#
# For instances with public sign ups, it is **HIGHLY RECOMMENDED** to leave this setting on 'false',
# since setting it to true allows malicious accounts to make their profile pages misleading, unusable
# or even dangerous to visitors. In other words, you should only enable this setting if you trust
# the users on your instance not to produce harmful CSS.
#
# Regardless of what this value is set to, any uploaded CSS will not be federated to other instances,
# it will only be shown on profiles and statuses on *this* instance.
#
# Options: [true, false]
# Default: false
accounts-allow-custom-css: false

########################
##### MEDIA CONFIG #####
########################

# Config pertaining to media uploads (videos, image, image descriptions, emoji).

# Int. Maximum allowed image upload size in bytes.
# Examples: [2097152, 10485760]
# Default: 10485760 -- aka 10MB
media-image-max-size: 10485760

# Int. Maximum allowed video upload size in bytes.
# Examples: [2097152, 10485760]
# Default: 41943040 -- aka 40MB
media-video-max-size: 41943040

# Int. Minimum amount of characters required as an image or video description.
# Examples: [500, 1000, 1500]
# Default: 0 (not required)
media-description-min-chars: 0

# Int. Maximum amount of characters permitted in an image or video description.
# Examples: [500, 1000, 1500]
# Default: 500
media-description-max-chars: 500

# Int. Number of days to cache media from remote instances before they are removed from the cache.
# A job will run every day at midnight to clean up any remote media older than the given amount of days.
#
# When remote media is removed from the cache, it is deleted from storage but the database entries for the media
# are kept so that it can be fetched again if requested by a user.
#
# If this is set to 0, then media from remote instances will be cached indefinitely.
# Examples: [30, 60, 7, 0]
# Default: 30
media-remote-cache-days: 30

# Int. Max size in bytes of emojis uploaded to this instance via the admin API.
# The default is the same as the Mastodon size limit for emojis (50kb), which allows
# for good interoperability. Raising this limit may cause issues with federation
# of your emojis to other instances, so beware.
# Examples: [51200, 102400]
# Default: 51200
media-emoji-local-max-size: 51200

# Int. Max size in bytes of emojis to download from other instances.
# By default this is 100kb, or twice the size of the default for media-emoji-local-max-size.
# This strikes a good balance between decent interoperability with instances that have
# higher emoji size limits, and not taking up too much space in storage.
# Examples: [51200, 102400]
# Default: 51200
media-emoji-remote-max-size: 102400

##########################
##### STORAGE CONFIG #####
##########################

# Config pertaining to storage of user-created uploads (videos, images, etc).

# String. Type of storage backend to use.
# Examples: ["local", "s3"]
# Default: "local" (storage on local disk)
storage-backend: "local"

# String. Directory to use as a base path for storing files.
# Make sure whatever user/group gotosocial is running as has permission to access
# this directory, and create new subdirectories and files within it.
# Only required when running with the local storage backend.
# Examples: ["/home/gotosocial/storage", "/opt/gotosocial/datastorage"]
# Default: "/gotosocial/storage"
storage-local-base-path: "/gotosocial/storage"

# String. API endpoint of the S3 compatible service.
# Only required when running with the s3 storage backend.
# Examples: ["minio:9000", "s3.nl-ams.scw.cloud", "s3.us-west-002.backblazeb2.com"]
# GoToSocial uses "DNS-style" when accessing buckets. 
# If you are using Scaleways object storage, please remove the "bucket name" from the endpoint address
# Default: ""
storage-s3-endpoint: ""

# Bool. If data stored in S3 should be proxied through GoToSocial instead of redirecting to a presigned URL.
#
# Default: false
storage-s3-proxy: false
# Bool. Use SSL for S3 connections.
#
# Only set this to 'false' when testing locally.
#
# Default: true
storage-s3-use-ssl: true

# String. Access key part of the S3 credentials.
# Consider setting this value using environment variables to avoid leaking it via the config file
# Only required when running with the s3 storage backend.
# Examples: ["AKIAJSIE27KKMHXI3BJQ","miniouser"]
# Default: ""
storage-s3-access-key: ""
# String. Secret key part of the S3 credentials.
# Consider setting this value using environment variables to avoid leaking it via the config file
# Only required when running with the s3 storage backend.
# Examples: ["5bEYu26084qjSFyclM/f2pz4gviSfoOg+mFwBH39","miniopassword"]
# Default: ""
storage-s3-secret-key: ""
# String. Name of the storage bucket.
#
# If you have already encoded your bucket name in the storage-s3-endpoint, this
# value will be used as a directory containing your data.
#
# The bucket must exist prior to starting GoToSocial
#
# Only required when running with the s3 storage backend.
# Examples: ["gts","cool-instance"]
# Default: ""
storage-s3-bucket: ""

###########################
##### STATUSES CONFIG #####
###########################

# Config pertaining to the creation of statuses/posts, and permitted limits.

# Int. Maximum amount of characters permitted for a new status.
# Note that going way higher than the default might break federation.
# Examples: [140, 500, 5000]
# Default: 5000
statuses-max-chars: 5000

# Int. Maximum amount of characters allowed in the CW/subject header of a status.
# Note that going way higher than the default might break federation.
# Examples: [100, 200]
# Default: 100
statuses-cw-max-chars: 100

# Int. Maximum amount of options to permit when creating a new poll.
# Note that going way higher than the default might break federation.
# Examples: [4, 6, 10]
# Default: 6
statuses-poll-max-options: 6

# Int. Maximum amount of characters to permit per poll option when creating a new poll.
# Note that going way higher than the default might break federation.
# Examples: [50, 100, 150]
# Default: 50
statuses-poll-option-max-chars: 50

# Int. Maximum amount of media files that can be attached to a new status.
# Note that going way higher than the default might break federation.
# Examples: [4, 6, 10]
# Default: 6
statuses-media-max-files: 6

##############################
##### LETSENCRYPT CONFIG #####
##############################

# Config pertaining to the automatic acquisition and use of LetsEncrypt HTTPS certificates.

# Bool. Whether or not letsencrypt should be enabled for the server.
# If false, the rest of the settings here will be ignored.
# If you serve GoToSocial behind a reverse proxy like nginx or traefik, leave this turned off.
# If you don't, then turn it on so that you can use https.
# Options: [true, false]
# Default: false
letsencrypt-enabled: false

# Int. Port to listen for letsencrypt certificate challenges on.
# If letsencrypt is enabled, this port must be reachable or you won't be able to obtain certs.
# If letsencrypt is disabled, this port will not be used.
# This *must not* be the same as the webserver/API port specified above.
# Examples: [80, 8000, 1312]
# Default: 80
letsencrypt-port: 80

# String. Directory in which to store LetsEncrypt certificates.
# It is a good move to make this a sub-path within your storage directory, as it makes
# backup easier, but you might wish to move them elsewhere if they're also accessed by other services.
# In any case, make sure GoToSocial has permissions to write to / read from this directory.
# Examples: ["/home/gotosocial/storage/certs", "/acmecerts"]
# Default: "/gotosocial/storage/certs"
letsencrypt-cert-dir: "/gotosocial/storage/certs"

# String. Email address to use when registering LetsEncrypt certs.
# Most likely, this will be the email address of the instance administrator.
# LetsEncrypt will send notifications about expiring certificates etc to this address.
# Examples: ["admin@example.org"]
# Default: ""
letsencrypt-email-address: ""

##############################
##### MANUAL TLS CONFIG  #####
##############################

# String. Path to a PEM-encoded file on disk that includes the certificate chain 
# and the public key
# Examples: ["/gotosocial/storage/certs/chain.pem"]
# Default: ""
tls-certificate-chain: ""

# String. Path to a PEM-encoded file on disk containing the private key for the
# associated tls-certificate-chain
# Examples: ["/gotosocial/storage/certs/private.pem"]
# Default: ""
tls-certificate-key: ""

#######################
##### OIDC CONFIG #####
#######################

# Config for authentication with an external OIDC provider (Dex, Google, Auth0, etc).

# Bool. Enable authentication with external OIDC provider. If set to true, then
# the other OIDC options must be set as well. If this is set to false, then the standard
# internal oauth flow will be used, where users sign in to GtS with username/password.
# Options: [true, false]
# Default: false
oidc-enabled: false

# String. Name of the oidc idp (identity provider). This will be shown to users when
# they log in.
# Examples: ["Google", "Dex", "Auth0"]
# Default: ""
oidc-idp-name: ""

# Bool. Skip the normal verification flow of tokens returned from the OIDC provider, ie.,
# don't check the expiry or signature. This should only be used in debugging or testing,
# never ever in a production environment as it's extremely unsafe!
# Options: [true, false]
# Default: false
oidc-skip-verification: false

# String. The OIDC issuer URI. This is where GtS will redirect users to for login.
# Typically this will look like a standard web URL.
# Examples: ["https://auth.example.org", "https://example.org/auth"]
# Default: ""
oidc-issuer: ""

# String. The ID for this client as registered with the OIDC provider.
# Examples: ["some-client-id", "fda3772a-ad35-41c9-9a59-f1943ad18f54"]
# Default: ""
oidc-client-id: ""

# String. The secret for this client as registered with the OIDC provider.
# Examples: ["super-secret-business", "79379cf5-8057-426d-bb83-af504d98a7b0"]
# Default: ""
oidc-client-secret: ""

# Array of string. Scopes to request from the OIDC provider. The returned values will be used to
# populate users created in GtS as a result of the authentication flow. 'openid' and 'email' are required.
# 'profile' is used to extract a username for the newly created user.
# 'groups' is optional and can be used to determine if a user is an admin based on oidc-admin-groups.
# Examples: See eg., https://auth0.com/docs/scopes/openid-connect-scopes
# Default: ["openid", "email", "profile", "groups"]
oidc-scopes:
  - "openid"
  - "email"
  - "profile"
  - "groups"

# Bool. Link OIDC authenticated users to existing ones based on their email address.
# This is mostly intended for migration purposes if you were running previous versions of GTS
# which only correlated users with their email address. Should be set to false for most usecases.
# Options: [true, false]
# Default: false
oidc-link-existing: false

# Array of string. If the returned ID token contains a 'groups' claim that matches one of the
# groups in oidc-admin-groups, then this user will be granted admin rights on the GtS instance
# Default: []
oidc-admin-groups: []

#######################
##### SMTP CONFIG #####
#######################

# Config for sending emails via an smtp server. See https://en.wikipedia.org/wiki/Simple_Mail_Transfer_Protocol

# String. The hostname of the smtp server you want to use.
# If this is not set, smtp will not be used to send emails, and you can ignore the other settings.
# Examples: ["mail.example.org", "localhost"]
# Default: ""
smtp-host: ""

# Int. Port to use to connect to the smtp server.
# Examples: []
# Default: 0
smtp-port: 0

# String. Username to use when authenticating with the smtp server.
# This should have been provided to you by your smtp host.
# This is often, but not always, an email address.
# Examples: ["maillord@example.org"]
# Default: ""
smtp-username: ""

# String. Password to use when authenticating with the smtp server.
# This should have been provided to you by your smtp host.
# Examples: ["1234", "password"]
# Default: ""
smtp-password: ""

# String. 'From' address for sent emails.
# Examples: ["mail@example.org"]
# Default: ""
smtp-from: ""

# Bool. If true, when an email is sent that has multiple recipients, each recipient
# will be included in the To field, so that each recipient can see who else got the
# email, and they can 'reply all' to the other recipients if they want to.
#
# If false, email will be sent to Undisclosed Recipients, and each recipient will not
# be able to see who else received the email.
#
# It might be useful to change this setting to 'true' if you want to be able to discuss
# new moderation reports with other admins by 'replying-all' to the notification email.
# Default: false
smtp-disclose-recipients: false

#########################
##### SYSLOG CONFIG #####
#########################

# Config for additional syslog log hooks. See https://en.wikipedia.org/wiki/Syslog,
# and https://github.com/sirupsen/logrus/tree/master/hooks/syslog.
#
# These settings are useful when one wants to daemonize GoToSocial and send logs
# to a specific place, either a local location or a syslog server. Most users will
# not need to touch these settings.

# Bool. Enable the syslog logging hook. Logs will be mirrored to the configured destination.
# Options: [true, false]
# Default: false
syslog-enabled: false

# String. Protocol to use when directing logs to syslog. Leave empty to connect to local syslog.
# Options: ["udp", "tcp", ""]
# Default: "tcp"
syslog-protocol: "udp"

# String. Address:port to send syslog logs to. Leave empty to connect to local syslog.
# Default: "localhost:514"
syslog-address: "localhost:514"

##################################
##### OBSERVABILITY SETTINGS #####
##################################

# String. Header name to use to extract a request or trace ID from. Typically set by a
# loadbalancer or proxy.
# Default: "X-Request-Id"
request-id-header: "X-Request-Id"

#############################
##### ADVANCED SETTINGS #####
#############################

# Advanced settings pertaining to http timeouts, security, cookies, and more.
#
# ONLY ADJUST THESE SETTINGS IF YOU KNOW WHAT YOU ARE DOING!
#
# Most users will not need to (and should not) touch these settings, since
# they are set to sensible defaults, and may break if they are changed.
#
# Nevertheless, they are provided for the sake of allowing server admins to
# tweak their instance for performance or security reasons.

# String. Value of the SameSite attribute of cookies set by GoToSocial.
# Defaults to 'lax' to ensure that the OIDC flow does not break, which is
# fine in most cases. If you want to harden your instance against CSRF attacks
# and don't mind if some login-related things might break, you can set this
# to 'strict' instead.
#
# For an overview of what this does, see:
# https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Set-Cookie/SameSite
#
# Options: ["lax", "strict"]
# Default: "lax"
advanced-cookies-samesite: "lax"

# Int. Amount of requests to permit per router grouping from a single IP address within
# a span of 5 minutes. If this amount is exceeded, a 429 HTTP error code will be returned.
#
# If you find yourself adjusting this limit because it's regularly being exceeded,
# you should first verify that your settings for `trusted-proxies` (above) are correct.
# In many cases, when the rate limit is exceeded it is because your instance sees all
# incoming requests as coming from the *same IP address* (you can verify this by looking
# at the client IPs in your instance logs). If this is the case, try adding that IP
# address to your `trusted-proxies` *BEFORE* you go adjusting this rate limit setting!
#
# If you set this to 0 or less, rate limiting will be disabled entirely.
#
# Examples: [1000, 500, 0]
# Default: 300
advanced-rate-limit-requests: 300

# Int. Amount of open requests to permit per CPU, per router grouping, before applying http
# request throttling. Any requests beyond the calculated limit are held in a backlog queue for
# up to 30 seconds before either being processed or timing out. Requests that don't fit in the backlog
# queue will have status 503 returned to them, and the header 'Retry-After' will be set to 30 seconds.
#
# Open request limit is available CPUs * multiplier; backlog queue limit is limit * multiplier.
#
# Example values for multiplier 8:
#
# 1 cpu = 08 open, 064 backlog
# 2 cpu = 16 open, 128 backlog
# 4 cpu = 32 open, 256 backlog
#
# Example values for multiplier 4:
#
# 1 cpu = 04 open, 016 backlog
# 2 cpu = 08 open, 032 backlog
# 4 cpu = 16 open, 064 backlog
#
# A multiplier of 8 is a sensible default, but you may wish to increase this for instances
# running on very performant hardware, or decrease it for instances using v. slow CPUs.
#
# If you set this to 0 or less, http request throttling will be disabled entirely.
#
# Examples: [8, 4, 9, 0]
# Default: 8
advanced-throttling-multiplier: 8

# Duration. Time period to use as the "retry-after" header value in response to throttled requests.
# Minimum resolution is 1 second.
#
# Examples: [30s, 10s, 5s, 1m]
# Default: 30s
advanced-throttling-retry-after: "30s"