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Configuration

This file describe the configuration, it is recommended to edit the relevant *.secret.exs file instead of the others founds in the config directory. If you run Pleroma with MIX_ENV=prod the file is prod.secret.exs, otherwise it is dev.secret.exs.

Pleroma.Upload

uploader: Select which Pleroma.Uploaders to use
filters: List of Pleroma.Upload.Filter to use.
link_name: When enabled Pleroma will add a name parameter to the url of the upload, for example https://instance.tld/media/corndog.png?name=corndog.png. This is needed to provide the correct filename in Content-Disposition headers when using filters like Pleroma.Upload.Filter.Dedupe
base_url: The base URL to access a user-uploaded file. Useful when you want to proxy the media files via another host.
proxy_remote: If you're using a remote uploader, Pleroma will proxy media requests instead of redirecting to it.
proxy_opts: Proxy options, see Pleroma.ReverseProxy documentation.

Note: strip_exif has been replaced by Pleroma.Upload.Filter.Mogrify.

Pleroma.Uploaders.Local

uploads: Which directory to store the user-uploads in, relative to pleroma’s working directory

Pleroma.Uploaders.S3

bucket: S3 bucket name
bucket_namespace: S3 bucket namespace
public_endpoint: S3 endpoint that the user finally accesses(ex. "https://s3.dualstack.ap-northeast-1.amazonaws.com")
truncated_namespace: If you use S3 compatible service such as Digital Ocean Spaces or CDN, set folder name or "" etc. For example, when using CDN to S3 virtual host format, set "". At this time, write CNAME to CDN in public_endpoint.

Pleroma.Upload.Filter.Mogrify

args: List of actions for the mogrify command like "strip" or ["strip", "auto-orient", {"implode", "1"}].

Pleroma.Upload.Filter.Dedupe

No specific configuration.

Pleroma.Upload.Filter.AnonymizeFilename

This filter replaces the filename (not the path) of an upload. For complete obfuscation, add Pleroma.Upload.Filter.Dedupe before AnonymizeFilename.

text: Text to replace filenames in links. If empty, {random}.extension will be used. You can get the original filename extension by using {extension}, for example custom-file-name.{extension}.

Pleroma.Emails.Mailer

adapter: one of the mail adapters listed in Swoosh readme, or Swoosh.Adapters.Local for in-memory mailbox.
api_key / password and / or other adapter-specific settings, per the above documentation.
enabled: Allows enable/disable send emails. Default: false.

An example for Sendgrid adapter:

config :pleroma, Pleroma.Emails.Mailer,
  adapter: Swoosh.Adapters.Sendgrid,
  api_key: "YOUR_API_KEY"

An example for SMTP adapter:

config :pleroma, Pleroma.Emails.Mailer,
  adapter: Swoosh.Adapters.SMTP,
  relay: "smtp.gmail.com",
  username: "YOUR_USERNAME@gmail.com",
  password: "YOUR_SMTP_PASSWORD",
  port: 465,
  ssl: true,
  tls: :always,
  auth: :always

:uri_schemes

valid_schemes: List of the scheme part that is considered valid to be an URL

:instance

name: The instance’s name
email: Email used to reach an Administrator/Moderator of the instance
notify_email: Email used for notifications.
description: The instance’s description, can be seen in nodeinfo and /api/v1/instance
limit: Posts character limit (CW/Subject included in the counter)
remote_limit: Hard character limit beyond which remote posts will be dropped.
upload_limit: File size limit of uploads (except for avatar, background, banner)
avatar_upload_limit: File size limit of user’s profile avatars
background_upload_limit: File size limit of user’s profile backgrounds
banner_upload_limit: File size limit of user’s profile banners
poll_limits: A map with poll limits for local polls
- max_options: Maximum number of options
- max_option_chars: Maximum number of characters per option
- min_expiration: Minimum expiration time (in seconds)
- max_expiration: Maximum expiration time (in seconds)
registrations_open: Enable registrations for anyone, invitations can be enabled when false.
invites_enabled: Enable user invitations for admins (depends on registrations_open: false).
account_activation_required: Require users to confirm their emails before signing in.
federating: Enable federation with other instances
federation_incoming_replies_max_depth: Max. depth of reply-to activities fetching on incoming federation, to prevent out-of-memory situations while fetching very long threads. If set to nil, threads of any depth will be fetched. Lower this value if you experience out-of-memory crashes.
federation_reachability_timeout_days: Timeout (in days) of each external federation target being unreachable prior to pausing federating to it.
allow_relay: Enable Pleroma’s Relay, which makes it possible to follow a whole instance
rewrite_policy: Message Rewrite Policy, either one or a list. Here are the ones available by default:
- Pleroma.Web.ActivityPub.MRF.NoOpPolicy: Doesn’t modify activities (default)
- Pleroma.Web.ActivityPub.MRF.DropPolicy: Drops all activities. It generally doesn’t makes sense to use in production
- Pleroma.Web.ActivityPub.MRF.SimplePolicy: Restrict the visibility of activities from certains instances (See :mrf_simple section)
- Pleroma.Web.ActivityPub.MRF.TagPolicy: Applies policies to individual users based on tags, which can be set using pleroma-fe/admin-fe/any other app that supports Pleroma Admin API. For example it allows marking posts from individual users nsfw (sensitive)
- Pleroma.Web.ActivityPub.MRF.SubchainPolicy: Selectively runs other MRF policies when messages match (see :mrf_subchain section)
- Pleroma.Web.ActivityPub.MRF.RejectNonPublic: Drops posts with non-public visibility settings (See :mrf_rejectnonpublic section)
- Pleroma.Web.ActivityPub.MRF.EnsureRePrepended: Rewrites posts to ensure that replies to posts with subjects do not have an identical subject and instead begin with re:.
- Pleroma.Web.ActivityPub.MRF.AntiLinkSpamPolicy: Rejects posts from likely spambots by rejecting posts from new users that contain links.
- Pleroma.Web.ActivityPub.MRF.MediaProxyWarmingPolicy: Crawls attachments using their MediaProxy URLs so that the MediaProxy cache is primed.
- Pleroma.Web.ActivityPub.MRF.MentionPolicy: Drops posts mentioning configurable users. (see :mrf_mention section)
public: Makes the client API in authentificated mode-only except for user-profiles. Useful for disabling the Local Timeline and The Whole Known Network.
quarantined_instances: List of ActivityPub instances where private(DMs, followers-only) activities will not be send.
managed_config: Whenether the config for pleroma-fe is configured in this config or in static/config.json
allowed_post_formats: MIME-type list of formats allowed to be posted (transformed into HTML)
mrf_transparency: Make the content of your Message Rewrite Facility settings public (via nodeinfo).
mrf_transparency_exclusions: Exclude specific instance names from MRF transparency. The use of the exclusions feature will be disclosed in nodeinfo as a boolean value.
scope_copy: Copy the scope (private/unlisted/public) in replies to posts by default.
subject_line_behavior: Allows changing the default behaviour of subject lines in replies. Valid values:
- "email": Copy and preprend re:, as in email.
- "masto": Copy verbatim, as in Mastodon.
- "noop": Don't copy the subject.
always_show_subject_input: When set to false, auto-hide the subject field when it's empty.
extended_nickname_format: Set to true to use extended local nicknames format (allows underscores/dashes). This will break federation with older software for theses nicknames.
max_pinned_statuses: The maximum number of pinned statuses. 0 will disable the feature.
autofollowed_nicknames: Set to nicknames of (local) users that every new user should automatically follow.
no_attachment_links: Set to true to disable automatically adding attachment link text to statuses
welcome_message: A message that will be send to a newly registered users as a direct message.
welcome_user_nickname: The nickname of the local user that sends the welcome message.
max_report_comment_size: The maximum size of the report comment (Default: 1000)
safe_dm_mentions: If set to true, only mentions at the beginning of a post will be used to address people in direct messages. This is to prevent accidental mentioning of people when talking about them (e.g. "@friend hey i really don't like @enemy"). Default: false.
healthcheck: If set to true, system data will be shown on /api/pleroma/healthcheck.
remote_post_retention_days: The default amount of days to retain remote posts when pruning the database.
user_bio_length: A user bio maximum length (default: 5000)
user_name_length: A user name maximum length (default: 100)
skip_thread_containment: Skip filter out broken threads. The default is false.
limit_to_local_content: Limit unauthenticated users to search for local statutes and users only. Possible values: :unauthenticated, :all and false. The default is :unauthenticated.
dynamic_configuration: Allow transferring configuration to DB with the subsequent customization from Admin api.
external_user_synchronization: Enabling following/followers counters synchronization for external users.

:logger

backends: :console is used to send logs to stdout, {ExSyslogger, :ex_syslogger} to log to syslog, and Quack.Logger to log to Slack

An example to enable ONLY ExSyslogger (f/ex in prod.secret.exs) with info and debug suppressed:

config :logger,
  backends: [{ExSyslogger, :ex_syslogger}]

config :logger, :ex_syslogger,
  level: :warn

Another example, keeping console output and adding the pid to syslog output:

config :logger,
  backends: [:console, {ExSyslogger, :ex_syslogger}]

config :logger, :ex_syslogger,
  level: :warn,
  option: [:pid, :ndelay]

See: logger’s documentation and ex_syslogger’s documentation

An example of logging info to local syslog, but warn to a Slack channel:

config :logger,
  backends: [ {ExSyslogger, :ex_syslogger}, Quack.Logger ],
  level: :info

config :logger, :ex_syslogger,
  level: :info,
  ident: "pleroma",
  format: "$metadata[$level] $message"

config :quack,
  level: :warn,
  meta: [:all],
  webhook_url: "https://hooks.slack.com/services/YOUR-API-KEY-HERE"

See the Quack Github for more details

:frontend_configurations

This can be used to configure a keyword list that keeps the configuration data for any kind of frontend. By default, settings for pleroma_fe and masto_fe are configured.

Frontends can access these settings at /api/pleroma/frontend_configurations

To add your own configuration for PleromaFE, use it like this:

config :pleroma, :frontend_configurations,
  pleroma_fe: %{
    theme: "pleroma-dark",
    # ... see /priv/static/static/config.json for the available keys.
},
  masto_fe: %{
    showInstanceSpecificPanel: true
  }

These settings need to be complete, they will override the defaults.

NOTE: for versions < 1.0, you need to set :fe to false, as shown a few lines below.

:fe

THIS IS DEPRECATED

If you are using this method, please change it to the frontend_configurations method. Please set this option to false in your config like this:

config :pleroma, :fe, false

This section is used to configure Pleroma-FE, unless :managed_config in :instance is set to false.

theme: Which theme to use, they are defined in styles.json
logo: URL of the logo, defaults to Pleroma’s logo
logo_mask: Whether to use only the logo's shape as a mask (true) or as a regular image (false)
logo_margin: What margin to use around the logo
background: URL of the background, unless viewing a user profile with a background that is set
redirect_root_no_login: relative URL which indicates where to redirect when a user isn’t logged in.
redirect_root_login: relative URL which indicates where to redirect when a user is logged in.
show_instance_panel: Whenether to show the instance’s specific panel.
scope_options_enabled: Enable setting an notice visibility and subject/CW when posting
formatting_options_enabled: Enable setting a formatting different than plain-text (ie. HTML, Markdown) when posting, relates to :instance, allowed_post_formats
collapse_message_with_subjects: When a message has a subject(aka Content Warning), collapse it by default
hide_post_stats: Hide notices statistics(repeats, favorites, …)
hide_user_stats: Hide profile statistics(posts, posts per day, followers, followings, …)

:assets

This section configures assets to be used with various frontends. Currently the only option relates to mascots on the mastodon frontend

mascots: KeywordList of mascots, each element MUST contain both a url and a mime_type key.
default_mascot: An element from mascots - This will be used as the default mascot on MastoFE (default: :pleroma_fox_tan)

:mrf_simple

media_removal: List of instances to remove medias from
media_nsfw: List of instances to put medias as NSFW(sensitive) from
federated_timeline_removal: List of instances to remove from Federated (aka The Whole Known Network) Timeline
reject: List of instances to reject any activities from
accept: List of instances to accept any activities from
report_removal: List of instances to reject reports from
avatar_removal: List of instances to strip avatars from
banner_removal: List of instances to strip banners from

:mrf_subchain

This policy processes messages through an alternate pipeline when a given message matches certain criteria. All criteria are configured as a map of regular expressions to lists of policy modules.

match_actor: Matches a series of regular expressions against the actor field.

Example:

config :pleroma, :mrf_subchain,
  match_actor: %{
    ~r/https:\/\/example.com/s => [Pleroma.Web.ActivityPub.MRF.DropPolicy]
  }

:mrf_rejectnonpublic

allow_followersonly: whether to allow followers-only posts
allow_direct: whether to allow direct messages

:mrf_hellthread

delist_threshold: Number of mentioned users after which the message gets delisted (the message can still be seen, but it will not show up in public timelines and mentioned users won't get notifications about it). Set to 0 to disable.
reject_threshold: Number of mentioned users after which the messaged gets rejected. Set to 0 to disable.

:mrf_keyword

reject: A list of patterns which result in message being rejected, each pattern can be a string or a regular expression
federated_timeline_removal: A list of patterns which result in message being removed from federated timelines (a.k.a unlisted), each pattern can be a string or a regular expression
replace: A list of tuples containing {pattern, replacement}, pattern can be a string or a regular expression

:mrf_mention

actors: A list of actors, for which to drop any posts mentioning.

:media_proxy

enabled: Enables proxying of remote media to the instance’s proxy
base_url: The base URL to access a user-uploaded file. Useful when you want to proxy the media files via another host/CDN fronts.
proxy_opts: All options defined in Pleroma.ReverseProxy documentation, defaults to [max_body_length: (25*1_048_576)].
whitelist: List of domains to bypass the mediaproxy

:gopher

enabled: Enables the gopher interface
ip: IP address to bind to
port: Port to bind to
dstport: Port advertised in urls (optional, defaults to port)

Pleroma.Web.Endpoint

Phoenix endpoint configuration, all configuration options can be viewed here, only common options are listed here

http - a list containing http protocol configuration, all configuration options can be viewed here, only common options are listed here. For deployment using docker, you need to set this to [ip: {0,0,0,0}, port: 4000] to make pleroma accessible from other containers (such as your nginx server).
- ip - a tuple consisting of 4 integers
- port
url - a list containing the configuration for generating urls, accepts
- host - the host without the scheme and a post (e.g example.com, not https://example.com:2020)
- scheme - e.g http, https
- port
- path
extra_cookie_attrs - a list of Key=Value strings to be added as non-standard cookie attributes. Defaults to ["SameSite=Lax"]. See the SameSite article on OWASP for more info.

Important note: if you modify anything inside these lists, default config.exs values will be overwritten, which may result in breakage, to make sure this does not happen please copy the default value for the list from config.exs and modify/add only what you need

Example:

config :pleroma, Pleroma.Web.Endpoint,
  url: [host: "example.com", port: 2020, scheme: "https"],
  http: [
    # start copied from config.exs
    dispatch: [
      {:_,
       [
         {"/api/v1/streaming", Pleroma.Web.MastodonAPI.WebsocketHandler, []},
         {"/websocket", Phoenix.Endpoint.CowboyWebSocket,
          {Phoenix.Transports.WebSocket,
           {Pleroma.Web.Endpoint, Pleroma.Web.UserSocket, websocket_config}}},
         {:_, Phoenix.Endpoint.Cowboy2Handler, {Pleroma.Web.Endpoint, []}}
       ]}
    # end copied from config.exs
    ],
    port: 8080,
    ip: {127, 0, 0, 1}
  ]

This will make Pleroma listen on 127.0.0.1 port 8080 and generate urls starting with https://example.com:2020

:activitypub

unfollow_blocked: Whether blocks result in people getting unfollowed
outgoing_blocks: Whether to federate blocks to other instances
deny_follow_blocked: Whether to disallow following an account that has blocked the user in question
sign_object_fetches: Sign object fetches with HTTP signatures

:http_security

enabled: Whether the managed content security policy is enabled
sts: Whether to additionally send a Strict-Transport-Security header
sts_max_age: The maximum age for the Strict-Transport-Security header if sent
ct_max_age: The maximum age for the Expect-CT header if sent
referrer_policy: The referrer policy to use, either "same-origin" or "no-referrer"
report_uri: Adds the specified url to report-uri and report-to group in CSP header.

:mrf_user_allowlist

The keys in this section are the domain names that the policy should apply to. Each key should be assigned a list of users that should be allowed through by their ActivityPub ID.

An example:

config :pleroma, :mrf_user_allowlist,
  "example.org": ["https://example.org/users/admin"]

:web_push_encryption, :vapid_details

Web Push Notifications configuration. You can use the mix task mix web_push.gen.keypair to generate it.

subject: a mailto link for the administrative contact. It’s best if this email is not a personal email address, but rather a group email so that if a person leaves an organization, is unavailable for an extended period, or otherwise can’t respond, someone else on the list can.
public_key: VAPID public key
private_key: VAPID private key

Pleroma.Captcha

enabled: Whether the captcha should be shown on registration
method: The method/service to use for captcha
seconds_valid: The time in seconds for which the captcha is valid

Pleroma.Captcha.Kocaptcha

Kocaptcha is a very simple captcha service with a single API endpoint, the source code is here: https://github.com/koto-bank/kocaptcha. The default endpoint https://captcha.kotobank.ch is hosted by the developer.

endpoint: the kocaptcha endpoint to use

:admin_token

Allows to set a token that can be used to authenticate with the admin api without using an actual user by giving it as the 'admin_token' parameter. Example:

config :pleroma, :admin_token, "somerandomtoken"

You can then do

curl "http://localhost:4000/api/pleroma/admin/invite_token?admin_token=somerandomtoken"

:pleroma_job_queue

Pleroma Job Queue configuration: a list of queues with maximum concurrent jobs.

Pleroma has the following queues:

federator_outgoing - Outgoing federation
federator_incoming - Incoming federation
mailer - Email sender, see Pleroma.Emails.Mailer
transmogrifier - Transmogrifier
web_push - Web push notifications
scheduled_activities - Scheduled activities, see Pleroma.ScheduledActivities

Example:

config :pleroma_job_queue, :queues,
  federator_incoming: 50,
  federator_outgoing: 50

This config contains two queues: federator_incoming and federator_outgoing. Both have the max_jobs set to 50.

Pleroma.Web.Federator.RetryQueue

enabled: If set to true, failed federation jobs will be retried
max_jobs: The maximum amount of parallel federation jobs running at the same time.
initial_timeout: The initial timeout in seconds
max_retries: The maximum number of times a federation job is retried

Pleroma.Web.Metadata

providers: a list of metadata providers to enable. Providers available:
- Pleroma.Web.Metadata.Providers.OpenGraph
- Pleroma.Web.Metadata.Providers.TwitterCard
- Pleroma.Web.Metadata.Providers.RelMe - add links from user bio with rel=me into the <header> as <link rel=me>
unfurl_nsfw: If set to true nsfw attachments will be shown in previews

:rich_media

enabled: if enabled the instance will parse metadata from attached links to generate link previews
ignore_hosts: list of hosts which will be ignored by the metadata parser. For example ["accounts.google.com", "xss.website"], defaults to [].
ignore_tld: list TLDs (top-level domains) which will ignore for parse metadata. default is ["local", "localdomain", "lan"]
parsers: list of Rich Media parsers

:fetch_initial_posts

enabled: if enabled, when a new user is federated with, fetch some of their latest posts
pages: the amount of pages to fetch

:hackney_pools

Advanced. Tweaks Hackney (http client) connections pools.

There's three pools used:

:federation for the federation jobs. You may want this pool max_connections to be at least equal to the number of federator jobs + retry queue jobs.
:media for rich media, media proxy
:upload for uploaded media (if using a remote uploader and proxy_remote: true)

For each pool, the options are:

max_connections - how much connections a pool can hold
timeout - retention duration for connections

:auto_linker

Configuration for the auto_linker library:

class: "auto-linker" - specify the class to be added to the generated link. false to clear
rel: "noopener noreferrer" - override the rel attribute. false to clear
new_window: true - set to false to remove target='_blank' attribute
scheme: false - Set to true to link urls with schema http://google.com
truncate: false - Set to a number to truncate urls longer then the number. Truncated urls will end in ..
strip_prefix: true - Strip the scheme prefix
extra: false - link urls with rarely used schemes (magnet, ipfs, irc, etc.)

Example:

config :auto_linker,
  opts: [
    scheme: true,
    extra: true,
    class: false,
    strip_prefix: false,
    new_window: false,
    rel: false
  ]

Pleroma.ScheduledActivity

daily_user_limit: the number of scheduled activities a user is allowed to create in a single day (Default: 25)
total_user_limit: the number of scheduled activities a user is allowed to create in total (Default: 300)
enabled: whether scheduled activities are sent to the job queue to be executed

Pleroma.Web.Auth.Authenticator

Pleroma.Web.Auth.PleromaAuthenticator: default database authenticator
Pleroma.Web.Auth.LDAPAuthenticator: LDAP authentication

:ldap

Use LDAP for user authentication. When a user logs in to the Pleroma instance, the name and password will be verified by trying to authenticate (bind) to an LDAP server. If a user exists in the LDAP directory but there is no account with the same name yet on the Pleroma instance then a new Pleroma account will be created with the same name as the LDAP user name.

enabled: enables LDAP authentication
host: LDAP server hostname
port: LDAP port, e.g. 389 or 636
ssl: true to use SSL, usually implies the port 636
sslopts: additional SSL options
tls: true to start TLS, usually implies the port 389
tlsopts: additional TLS options
base: LDAP base, e.g. "dc=example,dc=com"
uid: LDAP attribute name to authenticate the user, e.g. when "cn", the filter will be "cn=username,base"

BBS / SSH access

To enable simple command line interface accessible over ssh, add a setting like this to your configuration file:

app_dir = File.cwd!
priv_dir = Path.join([app_dir, "priv/ssh_keys"])

config :esshd,
  enabled: true,
  priv_dir: priv_dir,
  handler: "Pleroma.BBS.Handler",
  port: 10_022,
  password_authenticator: "Pleroma.BBS.Authenticator"

Feel free to adjust the priv_dir and port number. Then you will have to create the key for the keys (in the example priv/ssh_keys) and create the host keys with ssh-keygen -m PEM -N "" -b 2048 -t rsa -f ssh_host_rsa_key. After restarting, you should be able to connect to your Pleroma instance with ssh username@server -p $PORT

:auth

Pleroma.Web.Auth.PleromaAuthenticator: default database authenticator
Pleroma.Web.Auth.LDAPAuthenticator: LDAP authentication

Authentication / authorization settings.

auth_template: authentication form template. By default it's show.html which corresponds to lib/pleroma/web/templates/o_auth/o_auth/show.html.eex.
oauth_consumer_template: OAuth consumer mode authentication form template. By default it's consumer.html which corresponds to lib/pleroma/web/templates/o_auth/o_auth/consumer.html.eex.
oauth_consumer_strategies: the list of enabled OAuth consumer strategies; by default it's set by OAUTH_CONSUMER_STRATEGIES environment variable. Each entry in this space-delimited string should be of format <strategy> or <strategy>:<dependency> (e.g. twitter or keycloak:ueberauth_keycloak_strategy in case dependency is named differently than ueberauth_<strategy>).

:email_notifications

Email notifications settings.

digest - emails of "what you've missed" for users who have been inactive for a while.
- active: globally enable or disable digest emails
- schedule: When to send digest email, in crontab format. "0 0 * * 0" is the default, meaning "once a week at midnight on Sunday morning"
- interval: Minimum interval between digest emails to one user
- inactivity_threshold: Minimum user inactivity threshold

OAuth consumer mode

OAuth consumer mode allows sign in / sign up via external OAuth providers (e.g. Twitter, Facebook, Google, Microsoft, etc.). Implementation is based on Ueberauth; see the list of available strategies.

Note: each strategy is shipped as a separate dependency; in order to get the strategies, run OAUTH_CONSUMER_STRATEGIES="..." mix deps.get, e.g. OAUTH_CONSUMER_STRATEGIES="twitter facebook google microsoft" mix deps.get. The server should also be started with OAUTH_CONSUMER_STRATEGIES="..." mix phx.server in case you enable any strategies.

Note: each strategy requires separate setup (on external provider side and Pleroma side). Below are the guidelines on setting up most popular strategies.

Note: make sure that "SameSite=Lax" is set in extra_cookie_attrs when you have this feature enabled. OAuth consumer mode will not work with "SameSite=Strict"

For Twitter, register an app, configure callback URL to https://<your_host>/oauth/twitter/callback
For Facebook, register an app, configure callback URL to https://<your_host>/oauth/facebook/callback, enable Facebook Login service at https://developers.facebook.com/apps/<app_id>/fb-login/settings/
For Google, register an app, configure callback URL to https://<your_host>/oauth/google/callback
For Microsoft, register an app, configure callback URL to https://<your_host>/oauth/microsoft/callback

Once the app is configured on external OAuth provider side, add app's credentials and strategy-specific settings (if any — e.g. see Microsoft below) to config/prod.secret.exs, per strategy's documentation (e.g. ueberauth_twitter). Example config basing on environment variables:

# Twitter
config :ueberauth, Ueberauth.Strategy.Twitter.OAuth,
  consumer_key: System.get_env("TWITTER_CONSUMER_KEY"),
  consumer_secret: System.get_env("TWITTER_CONSUMER_SECRET")

# Facebook
config :ueberauth, Ueberauth.Strategy.Facebook.OAuth,
  client_id: System.get_env("FACEBOOK_APP_ID"),
  client_secret: System.get_env("FACEBOOK_APP_SECRET"),
  redirect_uri: System.get_env("FACEBOOK_REDIRECT_URI")

# Google
config :ueberauth, Ueberauth.Strategy.Google.OAuth,
  client_id: System.get_env("GOOGLE_CLIENT_ID"),
  client_secret: System.get_env("GOOGLE_CLIENT_SECRET"),
  redirect_uri: System.get_env("GOOGLE_REDIRECT_URI")

# Microsoft
config :ueberauth, Ueberauth.Strategy.Microsoft.OAuth,
  client_id: System.get_env("MICROSOFT_CLIENT_ID"),
  client_secret: System.get_env("MICROSOFT_CLIENT_SECRET")

config :ueberauth, Ueberauth,
  providers: [
    microsoft: {Ueberauth.Strategy.Microsoft, [callback_params: []]}
  ]

# Keycloak
# Note: make sure to add `keycloak:ueberauth_keycloak_strategy` entry to `OAUTH_CONSUMER_STRATEGIES` environment variable
keycloak_url = "https://publicly-reachable-keycloak-instance.org:8080"

config :ueberauth, Ueberauth.Strategy.Keycloak.OAuth,
  client_id: System.get_env("KEYCLOAK_CLIENT_ID"),
  client_secret: System.get_env("KEYCLOAK_CLIENT_SECRET"),
  site: keycloak_url,
  authorize_url: "#{keycloak_url}/auth/realms/master/protocol/openid-connect/auth",
  token_url: "#{keycloak_url}/auth/realms/master/protocol/openid-connect/token",
  userinfo_url: "#{keycloak_url}/auth/realms/master/protocol/openid-connect/userinfo",
  token_method: :post

config :ueberauth, Ueberauth,
  providers: [
    keycloak: {Ueberauth.Strategy.Keycloak, [uid_field: :email]}
  ]

OAuth 2.0 provider - :oauth2

Configure OAuth 2 provider capabilities:

token_expires_in - The lifetime in seconds of the access token.
issue_new_refresh_token - Keeps old refresh token or generate new refresh token when to obtain an access token.
clean_expired_tokens - Enable a background job to clean expired oauth tokens. Defaults to false.
clean_expired_tokens_interval - Interval to run the job to clean expired tokens. Defaults to 86_400_000 (24 hours).

:emoji

shortcode_globs: Location of custom emoji files. * can be used as a wildcard. Example ["/emoji/custom/**/*.png"]
pack_extensions: A list of file extensions for emojis, when no emoji.txt for a pack is present. Example [".png", ".gif"]
groups: Emojis are ordered in groups (tags). This is an array of key-value pairs where the key is the groupname and the value the location or array of locations. * can be used as a wildcard. Example [Custom: ["/emoji/*.png", "/emoji/custom/*.png"]]
default_manifest: Location of the JSON-manifest. This manifest contains information about the emoji-packs you can download. Currently only one manifest can be added (no arrays).

Database options

RUM indexing for full text search

rum_enabled: If RUM indexes should be used. Defaults to false.

RUM indexes are an alternative indexing scheme that is not included in PostgreSQL by default. While they may eventually be mainlined, for now they have to be installed as a PostgreSQL extension from https://github.com/postgrespro/rum.

Their advantage over the standard GIN indexes is that they allow efficient ordering of search results by timestamp, which makes search queries a lot faster on larger servers, by one or two orders of magnitude. They take up around 3 times as much space as GIN indexes.

To enable them, both the rum_enabled flag has to be set and the following special migration has to be run:

mix ecto.migrate --migrations-path priv/repo/optional_migrations/rum_indexing/

This will probably take a long time.

:rate_limit

A keyword list of rate limiters where a key is a limiter name and value is the limiter configuration. The basic configuration is a tuple where:

The first element: scale (Integer). The time scale in milliseconds.
The second element: limit (Integer). How many requests to limit in the time scale provided.

It is also possible to have different limits for unauthenticated and authenticated users: the keyword value must be a list of two tuples where the first one is a config for unauthenticated users and the second one is for authenticated.

See Pleroma.Plugs.RateLimiter documentation for examples.

Supported rate limiters:

:search for the search requests (account & status search etc.)
:app_account_creation for registering user accounts from the same IP address
:relations_actions for actions on relations with all users (follow, unfollow)
:relation_id_action for actions on relation with a specific user (follow, unfollow)
:statuses_actions for create / delete / fav / unfav / reblog / unreblog actions on any statuses
:status_id_action for fav / unfav or reblog / unreblog actions on the same status by the same user

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Configuration

Pleroma.Upload

Pleroma.Uploaders.Local

Pleroma.Uploaders.S3

Pleroma.Upload.Filter.Mogrify

Pleroma.Upload.Filter.Dedupe

Pleroma.Upload.Filter.AnonymizeFilename

Pleroma.Emails.Mailer

:uri_schemes

:instance

:logger

:frontend_configurations

:fe

:assets

:mrf_simple

:mrf_subchain

:mrf_rejectnonpublic

:mrf_hellthread

:mrf_keyword

:mrf_mention

:media_proxy

:gopher

Pleroma.Web.Endpoint

:activitypub

:http_security

:mrf_user_allowlist

:web_push_encryption, :vapid_details

Pleroma.Captcha

Pleroma.Captcha.Kocaptcha

:admin_token

:pleroma_job_queue

Pleroma.Web.Federator.RetryQueue

Pleroma.Web.Metadata

:rich_media

:fetch_initial_posts

:hackney_pools

:auto_linker

Pleroma.ScheduledActivity

Pleroma.Web.Auth.Authenticator

:ldap

BBS / SSH access

:auth

:email_notifications

OAuth consumer mode

OAuth 2.0 provider - :oauth2

:emoji

Database options

RUM indexing for full text search

:rate_limit

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