sample_config.yaml

  #   the link in the password reset email: 'password_reset_success.html' and
  #   'password_reset_failure.html'
  #
  # * The contents of address verification emails sent during registration:
  #   'registration.html' and 'registration.txt'
  #
  # * HTML pages for success and failure that a user will see when they follow
  #   the link in an address verification email sent during registration:
  #   'registration_success.html' and 'registration_failure.html'
  #
  # * The contents of address verification emails sent when an address is added
  #   to a Matrix account: 'add_threepid.html' and 'add_threepid.txt'
  #
  # * HTML pages for success and failure that a user will see when they follow
  #   the link in an address verification email sent when an address is added
  #   to a Matrix account: 'add_threepid_success.html' and
  #   'add_threepid_failure.html'
  #
  # You can see the default templates at:
  # https://github.com/matrix-org/synapse/tree/master/synapse/res/templates
  #
  #template_dir: "res/templates"

  # Subjects to use when sending emails from Synapse.
  #
  # The placeholder '%(app)s' will be replaced with the value of the 'app_name'
  # setting above, or by a value dictated by the Matrix client application.
  #
  # If a subject isn't overridden in this configuration file, the value used as
  # its example will be used.
  #
  #subjects:

    # Subjects for notification emails.
    #
    # On top of the '%(app)s' placeholder, these can use the following
    # placeholders:
    #
    #   * '%(person)s', which will be replaced by the display name of the user(s)
    #      that sent the message(s), e.g. "Alice and Bob".
    #   * '%(room)s', which will be replaced by the name of the room the
    #      message(s) have been sent to, e.g. "My super room".
    #
    # See the example provided for each setting to see which placeholder can be
    # used and how to use them.
    #
    # Subject to use to notify about one message from one or more user(s) in a
    # room which has a name.
    #message_from_person_in_room: "[%(app)s] You have a message on %(app)s from %(person)s in the %(room)s room..."
    #
    # Subject to use to notify about one message from one or more user(s) in a
    # room which doesn't have a name.
    #message_from_person: "[%(app)s] You have a message on %(app)s from %(person)s..."
    #
    # Subject to use to notify about multiple messages from one or more users in
    # a room which doesn't have a name.
    #messages_from_person: "[%(app)s] You have messages on %(app)s from %(person)s..."
    #
    # Subject to use to notify about multiple messages in a room which has a
    # name.
    #messages_in_room: "[%(app)s] You have messages on %(app)s in the %(room)s room..."
    #
    # Subject to use to notify about multiple messages in multiple rooms.
    #messages_in_room_and_others: "[%(app)s] You have messages on %(app)s in the %(room)s room and others..."
    #
    # Subject to use to notify about multiple messages from multiple persons in
    # multiple rooms. This is similar to the setting above except it's used when
    # the room in which the notification was triggered has no name.
    #messages_from_person_and_others: "[%(app)s] You have messages on %(app)s from %(person)s and others..."
    #
    # Subject to use to notify about an invite to a room which has a name.
    #invite_from_person_to_room: "[%(app)s] %(person)s has invited you to join the %(room)s room on %(app)s..."
    #
    # Subject to use to notify about an invite to a room which doesn't have a
    # name.
    #invite_from_person: "[%(app)s] %(person)s has invited you to chat on %(app)s..."

    # Subject for emails related to account administration.
    #
    # On top of the '%(app)s' placeholder, these one can use the
    # '%(server_name)s' placeholder, which will be replaced by the value of the
    # 'server_name' setting in your Synapse configuration.
    #
    # Subject to use when sending a password reset email.
    #password_reset: "[%(server_name)s] Password reset"
    #
    # Subject to use when sending a verification email to assert an address's
    # ownership.
    #email_validation: "[%(server_name)s] Validate your email"


# Password providers allow homeserver administrators to integrate
# their Synapse installation with existing authentication methods
# ex. LDAP, external tokens, etc.
#
# For more information and known implementations, please see
# https://github.com/matrix-org/synapse/blob/master/docs/password_auth_providers.md
#
# Note: instances wishing to use SAML or CAS authentication should
# instead use the `saml2_config` or `cas_config` options,
# respectively.
#
password_providers:
#    # Example config for an LDAP auth provider
#    - module: "ldap_auth_provider.LdapAuthProvider"
#      config:
#        enabled: true
#        uri: "ldap://ldap.example.com:389"
#        start_tls: true
#        base: "ou=users,dc=example,dc=com"
#        attributes:
#           uid: "cn"
#           mail: "email"
#           name: "givenName"
#        #bind_dn:
#        #bind_password:
#        #filter: "(objectClass=posixAccount)"



# Clients requesting push notifications can either have the body of
# the message sent in the notification poke along with other details
# like the sender, or just the event ID and room ID (`event_id_only`).
# If clients choose the former, this option controls whether the
# notification request includes the content of the event (other details
# like the sender are still included). For `event_id_only` push, it
# has no effect.
#
# For modern android devices the notification content will still appear
# because it is loaded by the app. iPhone, however will send a
# notification saying only that a message arrived and who it came from.
#
#push:
#  include_content: true


# Spam checkers are third-party modules that can block specific actions
# of local users, such as creating rooms and registering undesirable
# usernames, as well as remote users by redacting incoming events.
#
spam_checker:
   #- module: "my_custom_project.SuperSpamChecker"
   #  config:
   #    example_option: 'things'
   #- module: "some_other_project.BadEventStopper"
   #  config:
   #    example_stop_events_from: ['@bad:example.com']


## Rooms ##

# Controls whether locally-created rooms should be end-to-end encrypted by
# default.
#
# Possible options are "all", "invite", and "off". They are defined as:
#
# * "all": any locally-created room
# * "invite": any room created with the "private_chat" or "trusted_private_chat"
#             room creation presets
# * "off": this option will take no effect
#
# The default value is "off".
#
# Note that this option will only affect rooms created after it is set. It
# will also not affect rooms created by other servers.
#
#encryption_enabled_by_default_for_room_type: invite


# Uncomment to allow non-server-admin users to create groups on this server
#
#enable_group_creation: true

# If enabled, non server admins can only create groups with local parts
# starting with this prefix
#
#group_creation_prefix: "unofficial/"



# User Directory configuration
#
# 'enabled' defines whether users can search the user directory. If
# false then empty responses are returned to all queries. Defaults to
# true.
#
# 'search_all_users' defines whether to search all users visible to your HS
# when searching the user directory, rather than limiting to users visible
# in public rooms.  Defaults to false.  If you set it True, you'll have to
# rebuild the user_directory search indexes, see
# https://github.com/matrix-org/synapse/blob/master/docs/user_directory.md
#
#user_directory:
#  enabled: true
#  search_all_users: false


# User Consent configuration
#
# for detailed instructions, see
# https://github.com/matrix-org/synapse/blob/master/docs/consent_tracking.md
#
# Parts of this section are required if enabling the 'consent' resource under
# 'listeners', in particular 'template_dir' and 'version'.
#
# 'template_dir' gives the location of the templates for the HTML forms.
# This directory should contain one subdirectory per language (eg, 'en', 'fr'),
# and each language directory should contain the policy document (named as
# '<version>.html') and a success page (success.html).
#
# 'version' specifies the 'current' version of the policy document. It defines
# the version to be served by the consent resource if there is no 'v'
# parameter.
#
# 'server_notice_content', if enabled, will send a user a "Server Notice"
# asking them to consent to the privacy policy. The 'server_notices' section
# must also be configured for this to work. Notices will *not* be sent to
# guest users unless 'send_server_notice_to_guests' is set to true.
#
# 'block_events_error', if set, will block any attempts to send events
# until the user consents to the privacy policy. The value of the setting is
# used as the text of the error.
#
# 'require_at_registration', if enabled, will add a step to the registration
# process, similar to how captcha works. Users will be required to accept the
# policy before their account is created.
#
# 'policy_name' is the display name of the policy users will see when registering
# for an account. Has no effect unless `require_at_registration` is enabled.
# Defaults to "Privacy Policy".
#
#user_consent:
#  template_dir: res/templates/privacy
#  version: 1.0
#  server_notice_content:
#    msgtype: m.text
#    body: >-
#      To continue using this homeserver you must review and agree to the
#      terms and conditions at %(consent_uri)s
#  send_server_notice_to_guests: true
#  block_events_error: >-
#    To continue using this homeserver you must review and agree to the
#    terms and conditions at %(consent_uri)s
#  require_at_registration: false
#  policy_name: Privacy Policy
#



# Local statistics collection. Used in populating the room directory.
#
# 'bucket_size' controls how large each statistics timeslice is. It can
# be defined in a human readable short form -- e.g. "1d", "1y".
#
# 'retention' controls how long historical statistics will be kept for.
# It can be defined in a human readable short form -- e.g. "1d", "1y".
#
#
#stats:
#   enabled: true
#   bucket_size: 1d
#   retention: 1y


# Server Notices room configuration
#
# Uncomment this section to enable a room which can be used to send notices
# from the server to users. It is a special room which cannot be left; notices
# come from a special "notices" user id.
#
# If you uncomment this section, you *must* define the system_mxid_localpart
# setting, which defines the id of the user which will be used to send the
# notices.
#
# It's also possible to override the room name, the display name of the
# "notices" user, and the avatar for the user.
#
#server_notices:
#  system_mxid_localpart: notices
#  system_mxid_display_name: "Server Notices"
#  system_mxid_avatar_url: "mxc://server.com/oumMVlgDnLYFaPVkExemNVVZ"
#  room_name: "Server Notices"



# Uncomment to disable searching the public room list. When disabled
# blocks searching local and remote room lists for local and remote
# users by always returning an empty list for all queries.
#
#enable_room_list_search: false

# The `alias_creation` option controls who's allowed to create aliases
# on this server.
#
# The format of this option is a list of rules that contain globs that
# match against user_id, room_id and the new alias (fully qualified with
# server name). The action in the first rule that matches is taken,
# which can currently either be "allow" or "deny".
#
# Missing user_id/room_id/alias fields default to "*".
#
# If no rules match the request is denied. An empty list means no one
# can create aliases.
#
# Options for the rules include:
#
#   user_id: Matches against the creator of the alias
#   alias: Matches against the alias being created
#   room_id: Matches against the room ID the alias is being pointed at
#   action: Whether to "allow" or "deny" the request if the rule matches
#
# The default is:
#
#alias_creation_rules:
#  - user_id: "*"
#    alias: "*"
#    room_id: "*"
#    action: allow

# The `room_list_publication_rules` option controls who can publish and
# which rooms can be published in the public room list.
#
# The format of this option is the same as that for
# `alias_creation_rules`.
#
# If the room has one or more aliases associated with it, only one of
# the aliases needs to match the alias rule. If there are no aliases
# then only rules with `alias: *` match.
#
# If no rules match the request is denied. An empty list means no one
# can publish rooms.
#
# Options for the rules include:
#
#   user_id: Matches agaisnt the creator of the alias
#   room_id: Matches against the room ID being published
#   alias: Matches against any current local or canonical aliases
#            associated with the room
#   action: Whether to "allow" or "deny" the request if the rule matches
#
# The default is:
#
#room_list_publication_rules:
#  - user_id: "*"
#    alias: "*"
#    room_id: "*"
#    action: allow


# Server admins can define a Python module that implements extra rules for
# allowing or denying incoming events. In order to work, this module needs to
# override the methods defined in synapse/events/third_party_rules.py.
#
# This feature is designed to be used in closed federations only, where each
# participating server enforces the same rules.
#
#third_party_event_rules:
#  module: "my_custom_project.SuperRulesSet"
#  config:
#    example_option: 'things'


## Opentracing ##

# These settings enable opentracing, which implements distributed tracing.
# This allows you to observe the causal chains of events across servers
# including requests, key lookups etc., across any server running
# synapse or any other other services which supports opentracing
# (specifically those implemented with Jaeger).
#
opentracing:
    # tracing is disabled by default. Uncomment the following line to enable it.
    #
    #enabled: true

    # The list of homeservers we wish to send and receive span contexts and span baggage.
    # See docs/opentracing.rst
    # This is a list of regexes which are matched against the server_name of the
    # homeserver.
    #
    # By defult, it is empty, so no servers are matched.
    #
    #homeserver_whitelist:
    #  - ".*"

    # Jaeger can be configured to sample traces at different rates.
    # All configuration options provided by Jaeger can be set here.
    # Jaeger's configuration mostly related to trace sampling which
    # is documented here:
    # https://www.jaegertracing.io/docs/1.13/sampling/.
    #
    #jaeger_config:
    #  sampler:
    #    type: const
    #    param: 1

    #  Logging whether spans were started and reported
    #
    #  logging:
    #    false