From e46ba5debaf34ee6abc5e09c0e19ff5c666edc85 Mon Sep 17 00:00:00 2001
From: Slavi Pantaleev <slavi@devture.com>
Date: Mon, 25 Jul 2022 14:34:21 +0300
Subject: [PATCH] Add matrix-appservice-kakaotalk support

Adds support for: https://src.miscworks.net/fair/matrix-appservice-kakaotalk

This is pretty similar to
https://github.com/spantaleev/matrix-docker-ansible-deploy/pull/1977
which just appeared, but has mostly been done independently.

I've taken some inspiration and did some fixups based on that PR.
Thanks to https://github.com/hnarjis for taking the time to contribute!

Notable differences between this branch compared to that PR:

- better naming and documentation around the "configuration" variables
- no unnecessary (5 sec.) intentional delay when starting `matrix-appservice-kakaotalk-node.service`
- stores configuration in `config/`, not in `data/`
- passes configuration as read-only and starts the bridge with (`--no-update`) to ensure no changes are made to it
- starts containers more securely - with `matrix:matrix` user:group (not `root`) and
  reduced capabilities (`--cap-drop=ALL`)
- uses `tcp` for communication between the "node" and the appservice (simpler than sharing unix sockets)
- `registration.yaml` which is closer to the one generated by `matrix-appservice-kakaotalk` (no `de.sorunome.msc2409.push_ephemeral` stuff, etc.)
- `registration.yaml` which is more customizable (customizable bot username and prefix for puppets - see `matrix_appservice_kakaotalk_appservice_bot_username` and `matrix_appservice_kakaotalk_user_prefix`)
- less fragile and more extensible bridge permissions configuration via `matrix_appservice_kakaotalk_bridge_permissions`. Doing `{% if matrix_admin %}` in the bridge configuration sometimes causes syntax problems (I hit some myself) and is not ideal. Other bridges should be redone as well.
- configurable command prefix for the bridge, instead of hardcoding `!kt` (see `matrix_appservice_kakaotalk_command_prefix`)
- logging that is more consistent with the rest of the playbook (console / journald only, no logging to files), as well as configurable log level (via `matrix_appservice_kakaotalk_logging_level`)
- somewhat more detailed documentation (`docs/configuring-playbook-bridge-appservice-kakaotalk.md`)
- removed some dead code (data relocation tasks from `tasks/setup_install.yml`, as well as likely unnecessary SQLite -> Postgres migration)
---
 ...ng-playbook-bridge-appservice-kakaotalk.md |  83 ++++++
 docs/configuring-playbook.md                  |   6 +-
 group_vars/matrix_servers                     |  43 +++
 .../defaults/main.yml                         | 196 +++++++++++++
 .../tasks/init.yml                            |  28 ++
 .../tasks/main.yml                            |  23 ++
 .../tasks/setup_install.yml                   | 125 ++++++++
 .../tasks/setup_uninstall.yml                 |  41 +++
 .../tasks/validate_config.yml                 |  10 +
 .../templates/config.yaml.j2                  | 276 ++++++++++++++++++
 .../templates/node-config.json.j2             |  13 +
 ...atrix-appservice-kakaotalk-node.service.j2 |  38 +++
 .../matrix-appservice-kakaotalk.service.j2    |  42 +++
 setup.yml                                     |   1 +
 14 files changed, 923 insertions(+), 2 deletions(-)
 create mode 100644 docs/configuring-playbook-bridge-appservice-kakaotalk.md
 create mode 100644 roles/matrix-bridge-appservice-kakaotalk/defaults/main.yml
 create mode 100644 roles/matrix-bridge-appservice-kakaotalk/tasks/init.yml
 create mode 100644 roles/matrix-bridge-appservice-kakaotalk/tasks/main.yml
 create mode 100644 roles/matrix-bridge-appservice-kakaotalk/tasks/setup_install.yml
 create mode 100644 roles/matrix-bridge-appservice-kakaotalk/tasks/setup_uninstall.yml
 create mode 100644 roles/matrix-bridge-appservice-kakaotalk/tasks/validate_config.yml
 create mode 100644 roles/matrix-bridge-appservice-kakaotalk/templates/config.yaml.j2
 create mode 100644 roles/matrix-bridge-appservice-kakaotalk/templates/node-config.json.j2
 create mode 100644 roles/matrix-bridge-appservice-kakaotalk/templates/systemd/matrix-appservice-kakaotalk-node.service.j2
 create mode 100644 roles/matrix-bridge-appservice-kakaotalk/templates/systemd/matrix-appservice-kakaotalk.service.j2

diff --git a/docs/configuring-playbook-bridge-appservice-kakaotalk.md b/docs/configuring-playbook-bridge-appservice-kakaotalk.md
new file mode 100644
index 000000000..0b284db1f
--- /dev/null
+++ b/docs/configuring-playbook-bridge-appservice-kakaotalk.md
@@ -0,0 +1,83 @@
+# Setting up Appservice Kakaotalk (optional)
+
+The playbook can install and configure [matrix-appservice-kakaotalk](https://src.miscworks.net/fair/matrix-appservice-kakaotalk) for you. `matrix-appservice-kakaotalk` is a bridge to [Kakaotalk](https://www.kakaocorp.com/page/service/service/KakaoTalk?lang=ENG) based on [node-kakao](https://github.com/storycraft/node-kakao) (now unmaintained) and some [mautrix-facebook](https://github.com/mautrix/facebook) code.
+
+See the project's [documentation](https://src.miscworks.net/fair/matrix-appservice-kakaotalk) to learn what it does and why it might be useful to you.
+
+## Installing
+
+To enable the bridge, add this to your `vars.yml` file:
+
+```yaml
+matrix_appservice_kakaotalk_enabled: true
+```
+
+You may optionally wish to add some [Additional configuration](#additional-configuration), or to [prepare for double-puppeting](#set-up-double-puppeting) before the initial installation.
+
+After adjusting your `vars.yml` file, re-run the playbook and restart all services: `ansible-playbook -i inventory/hosts setup.yml --tags=setup-all,start`
+
+To make use of the Kakaotalk bridge, see [Usage](#usage) below.
+
+
+### Additional configuration
+
+There are some additional things you may wish to configure about the bridge.
+
+Take a look at:
+
+- `roles/matrix-bridge-appservice-kakaotalk/defaults/main.yml` for some variables that you can customize via your `vars.yml` file
+- `roles/matrix-bridge-appservice-kakaotalk/templates/config.yaml.j2` for the bridge's default configuration. You can override settings using the `matrix_appservice_kakaotalk_configuration_extension_yaml` variable
+
+Here's some example configuration (which goes into your `vars.yml` file):
+```yaml
+# This configuration:
+# - enables encryption (it's off by default)
+# - grants some user on your homeserver 'admin' access to the bridge
+#   (note: the user specified in the `matrix_admin` (part of `roles/matrix-base/defaults/main.yml`) is made an admin by default)
+matrix_appservice_kakaotalk_configuration_extension_yaml: |
+  bridge:
+    permissions:
+      '@YOUR_USERNAME:{{ matrix_domain }}': admin
+
+    encryption:
+      allow: true
+      default: true
+```
+
+
+### Set up Double Puppeting
+
+If you'd like to use [Double Puppeting](https://docs.mau.fi/bridges/general/double-puppeting.html) (hint: you most likely do), you have 2 ways of going about it.
+
+#### Method 1: automatically, by enabling Shared Secret Auth
+
+The bridge will automatically perform Double Puppeting if you enable [Shared Secret Auth](configuring-playbook-shared-secret-auth.md) for this playbook.
+
+This is the recommended way of setting up Double Puppeting, as it's easier to accomplish, works for all your users automatically, and has less of a chance of breaking in the future.
+
+#### Method 2: manually, by asking each user to provide a working access token
+
+**Note**: This method for enabling Double Puppeting can be configured only after you've already set up bridging (see [Usage](#usage)).
+
+When using this method, **each user** that wishes to enable Double Puppeting needs to follow the following steps:
+
+- retrieve a Matrix access token for yourself. You can use the following command:
+
+```
+curl \
+--data '{"identifier": {"type": "m.id.user", "user": "YOUR_MATRIX_USERNAME" }, "password": "YOUR_MATRIX_PASSWORD", "type": "m.login.password", "device_id": "Appservice-Kakaotalk", "initial_device_display_name": "Appservice-Kakaotalk"}' \
+https://matrix.DOMAIN/_matrix/client/r0/login
+```
+
+- send the access token to the bot. Example: `login-matrix MATRIX_ACCESS_TOKEN_HERE`
+
+- make sure you don't log out the `Appservice-Kakaotalk` device some time in the future, as that would break the Double Puppeting feature
+
+
+## Usage
+
+Start a chat with `@kakaotalkbot:YOUR_DOMAIN` (where `YOUR_DOMAIN` is your base domain, not the `matrix.` domain).
+
+Send `login --save EMAIL_OR_PHONE_NUMBER` to the bridge bot to enable bridging for your Kakaotalk account. The `--save` flag may be omitted, if you'd rather not save your password.
+
+After successfully enabling bridging, you may wish to [set up Double Puppeting](#set-up-double-puppeting), if you haven't already done so.
diff --git a/docs/configuring-playbook.md b/docs/configuring-playbook.md
index e5301df13..cce74778a 100644
--- a/docs/configuring-playbook.md
+++ b/docs/configuring-playbook.md
@@ -110,14 +110,16 @@ When you're done with all the configuration you'd like to do, continue with [Ins
 
 - [Setting up Appservice IRC bridging](configuring-playbook-bridge-appservice-irc.md) (optional)
 
-- [Setting up Beeper LinkedIn bridging](configuring-playbook-bridge-beeper-linkedin.md) (optional)
-
 - [Setting up Appservice Discord bridging](configuring-playbook-bridge-appservice-discord.md) (optional)
 
 - [Setting up Appservice Slack bridging](configuring-playbook-bridge-appservice-slack.md) (optional)
 
 - [Setting up Appservice Webhooks bridging](configuring-playbook-bridge-appservice-webhooks.md) (optional)
 
+- [Setting up Appservice Kakaotalk bridging](configuring-playbook-bridge-appservice-kakaotalk.md) (optional)
+
+- [Setting up Beeper LinkedIn bridging](configuring-playbook-bridge-beeper-linkedin.md) (optional)
+
 - [Setting up matrix-hookshot](configuring-playbook-bridge-hookshot.md) - a bridge between Matrix and multiple project management services, such as [GitHub](https://github.com), [GitLab](https://about.gitlab.com) and [JIRA](https://www.atlassian.com/software/jira). (optional)
 
 - ~~[Setting up MX Puppet Skype bridging](configuring-playbook-bridge-mx-puppet-skype.md)~~ (optional) - this component has been broken for a long time, so it has been removed from the playbook. Consider [Setting up Go Skype Bridge bridging](configuring-playbook-bridge-go-skype-bridge.md)
diff --git a/group_vars/matrix_servers b/group_vars/matrix_servers
index ea17edb40..3f33c7c1b 100755
--- a/group_vars/matrix_servers
+++ b/group_vars/matrix_servers
@@ -213,6 +213,43 @@ matrix_appservice_irc_database_password: "{{ '%s' | format(matrix_homeserver_gen
 #
 ######################################################################
 
+######################################################################
+#
+# matrix-bridge-appservice-kakaotalk
+#
+######################################################################
+
+# We don't enable bridges by default.
+matrix_appservice_kakaotalk_enabled: false
+
+matrix_appservice_kakaotalk_systemd_required_services_list: |
+  {{
+    ['docker.service']
+    +
+    ['matrix-appservice-kakaotalk-node.service']
+    +
+    ['matrix-' + matrix_homeserver_implementation + '.service']
+    +
+    (['matrix-nginx-proxy.service'] if matrix_nginx_proxy_enabled else [])
+    +
+    (['matrix-postgres.service'] if matrix_postgres_enabled else [])
+  }}
+
+matrix_appservice_kakaotalk_appservice_token: "{{ '%s' | format(matrix_homeserver_generic_secret_key) | password_hash('sha512', 'as.kakao.hs') | to_uuid }}"
+
+matrix_appservice_kakaotalk_homeserver_token: "{{ '%s' | format(matrix_homeserver_generic_secret_key) | password_hash('sha512', 'as.kakao.hs') | to_uuid }}"
+
+matrix_appservice_kakaotalk_login_shared_secret: "{{ matrix_synapse_ext_password_provider_shared_secret_auth_shared_secret if matrix_synapse_ext_password_provider_shared_secret_auth_enabled else '' }}"
+
+matrix_appservice_kakaotalk_database_engine: "{{ 'postgres' if matrix_postgres_enabled else 'sqlite' }}"
+matrix_appservice_kakaotalk_database_password: "{{ '%s' | format(matrix_homeserver_generic_secret_key) | password_hash('sha512', 'as.kakao.db') | to_uuid }}"
+
+######################################################################
+#
+# /matrix-bridge-appservice-kakaotalk
+#
+######################################################################
+
 
 ######################################################################
 #
@@ -1811,6 +1848,12 @@ matrix_postgres_additional_databases: |
       'password': matrix_appservice_irc_database_password,
     }] if (matrix_appservice_irc_enabled and matrix_appservice_irc_database_engine == 'postgres' and matrix_appservice_irc_database_hostname == 'matrix-postgres') else [])
     +
+    ([{
+      'name': matrix_appservice_kakaotalk_database_name,
+      'username': matrix_appservice_kakaotalk_database_username,
+      'password': matrix_appservice_kakaotalk_database_password,
+    }] if (matrix_appservice_kakaotalk_enabled and matrix_appservice_kakaotalk_database_engine == 'postgres' and matrix_appservice_kakaotalk_database_hostname == 'matrix-postgres') else [])
+    +
     ([{
       'name': matrix_beeper_linkedin_database_name,
       'username': matrix_beeper_linkedin_database_username,
diff --git a/roles/matrix-bridge-appservice-kakaotalk/defaults/main.yml b/roles/matrix-bridge-appservice-kakaotalk/defaults/main.yml
new file mode 100644
index 000000000..482f1fb7c
--- /dev/null
+++ b/roles/matrix-bridge-appservice-kakaotalk/defaults/main.yml
@@ -0,0 +1,196 @@
+---
+# matrix-appservice-kakaotalk is a Matrix <-> Kakaotalk bridge
+# Project source code URL: https://src.miscworks.net/fair/matrix-appservice-kakaotalk/
+
+matrix_appservice_kakaotalk_enabled: true
+
+# No images are published for neither of the container images (appservice or node), so we're self-building everything.
+matrix_appservice_kakaotalk_container_image_self_build: true
+# matrix_appservice_kakaotalk_container_image_self_build_repo: "https://src.miscworks.net/fair/matrix-appservice-kakaotalk.git"
+#
+# hnarjis' fork is used instead of upstream (fair's), because upstream is currently broken.
+# The following error happens when chatting up the bot without this fix:
+# [2022-07-25 09:04:53,784] [ERROR@mau.as] Exception in Matrix event handler
+# Traceback (most recent call last):
+#   File "/usr/lib/python3.9/site-packages/mautrix/appservice/as_handler.py", line 239, in try_handle
+#     await handler_func(event)
+#   File "/usr/lib/python3.9/site-packages/mautrix/bridge/matrix.py", line 820, in int_handle_event
+#     await self.int_handle_invite(evt)
+#   File "/usr/lib/python3.9/site-packages/mautrix/bridge/matrix.py", line 441, in int_handle_invite
+#     inviter = await self.bridge.get_user(evt.sender)
+#   File "/usr/lib/python3.9/site-packages/matrix_appservice_kakaotalk/__main__.py", line 112, in get_user
+#     return await User.get_by_mxid(user_id, create=create)
+#   File "/usr/lib/python3.9/site-packages/mautrix/util/async_getter_lock.py", line 60, in wrapper
+#     return await fn(cls, *args, **kwargs)
+#   File "/usr/lib/python3.9/site-packages/matrix_appservice_kakaotalk/user.py", line 227, in get_by_mxid
+#     user = cls(mxid)
+# TypeError: __init__() missing 2 required positional arguments: 'force_login' and 'was_connected'
+matrix_appservice_kakaotalk_container_image_self_build_repo: "https://src.miscworks.net/hnarjis/matrix-appservice-kakaotalk.git"
+matrix_appservice_kakaotalk_container_image_self_build_repo_version: "{{ 'master' if matrix_appservice_kakaotalk_version == 'latest' else matrix_appservice_kakaotalk_version }}"
+
+matrix_appservice_kakaotalk_node_version: "{{ matrix_appservice_kakaotalk_version }}"
+matrix_appservice_kakaotalk_node_docker_image: "{{ matrix_appservice_kakaotalk_node_docker_image_prefix }}fair/matrix-appservice-kakaotalk-node:{{ matrix_appservice_kakaotalk_node_version }}"
+matrix_appservice_kakaotalk_node_docker_image_prefix: "localhost/"
+matrix_appservice_kakaotalk_node_docker_image_force_pull: "{{ matrix_appservice_kakaotalk_node_docker_image.endswith(':latest') }}"
+
+matrix_appservice_kakaotalk_version: 86c038fd2ffee5e0aebf65136f085cce7e38b54e
+matrix_appservice_kakaotalk_docker_image: "{{ matrix_appservice_kakaotalk_docker_image_name_prefix }}fair/matrix-appservice-kakaotalk:{{ matrix_appservice_kakaotalk_version }}"
+matrix_appservice_kakaotalk_docker_image_name_prefix: "localhost/"
+matrix_appservice_kakaotalk_docker_image_force_pull: "{{ matrix_appservice_kakaotalk_docker_image.endswith(':latest') }}"
+
+matrix_appservice_kakaotalk_base_path: "{{ matrix_base_data_path }}/appservice-kakaotalk"
+matrix_appservice_kakaotalk_config_path: "{{ matrix_appservice_kakaotalk_base_path }}/config"
+matrix_appservice_kakaotalk_data_path: "{{ matrix_appservice_kakaotalk_base_path }}/data"
+matrix_appservice_kakaotalk_docker_src_files_path: "{{ matrix_appservice_kakaotalk_base_path }}/docker-src"
+
+matrix_appservice_kakaotalk_command_prefix: "!kt"
+
+matrix_appservice_kakaotalk_homeserver_address: "{{ matrix_homeserver_container_url }}"
+matrix_appservice_kakaotalk_homeserver_domain: '{{ matrix_domain }}'
+matrix_appservice_kakaotalk_appservice_address: 'http://matrix-appservice-kakaotalk:11115'
+
+
+# A list of extra arguments to pass to the appservice-kakaotalk container
+matrix_appservice_kakaotalk_container_extra_arguments: []
+
+# List of systemd services that matrix-appservice-kakaotalk.service depends on.
+matrix_appservice_kakaotalk_systemd_required_services_list: ['docker.service', 'matrix-appservice-kakaotalk-node.service']
+
+# List of systemd services that matrix-appservice-kakaotalk.service wants
+matrix_appservice_kakaotalk_systemd_wanted_services_list: []
+
+
+# A list of extra arguments to pass to the appservice-kakaotalk-node container
+matrix_appservice_kakaotalk_node_container_extra_arguments: []
+
+# List of systemd services that matrix-appservice-kakaotalk-node.service depends on.
+matrix_appservice_kakaotalk_node_systemd_required_services_list: ['docker.service']
+
+# List of systemd services that matrix-appservice-kakaotalk-node.service wants
+matrix_appservice_kakaotalk_node_systemd_wanted_services_list: []
+
+
+matrix_appservice_kakaotalk_appservice_token: ''
+matrix_appservice_kakaotalk_homeserver_token: ''
+
+# Whether or not created rooms should have federation enabled.
+# If false, created portal rooms will never be federated.
+matrix_appservice_kakaotalk_federate_rooms: true
+
+# Database-related configuration fields.
+#
+# To use SQLite:
+# - change the engine (`matrix_appservice_kakaotalk_database_engine: 'sqlite'`)
+# To use Postgres:
+# - adjust your database credentials via the `matrix_appservice_kakaotalk_database_*` variables
+matrix_appservice_kakaotalk_database_engine: 'postgres'
+
+matrix_appservice_kakaotalk_sqlite_database_path_local: "{{ matrix_appservice_kakaotalk_data_path }}/appservice-kakaotalk.db"
+matrix_appservice_kakaotalk_sqlite_database_path_in_container: "/data/appservice-kakaotalk.db"
+
+matrix_appservice_kakaotalk_database_username: 'matrix_appservice_kakaotalk'
+matrix_appservice_kakaotalk_database_password: 'some-password'
+matrix_appservice_kakaotalk_database_hostname: 'matrix-postgres'
+matrix_appservice_kakaotalk_database_port: 5432
+matrix_appservice_kakaotalk_database_name: 'matrix_appservice_kakaotalk'
+
+matrix_appservice_kakaotalk_database_connection_string: 'postgres://{{ matrix_appservice_kakaotalk_database_username }}:{{ matrix_appservice_kakaotalk_database_password }}@{{ matrix_appservice_kakaotalk_database_hostname }}:{{ matrix_appservice_kakaotalk_database_port }}/{{ matrix_appservice_kakaotalk_database_name }}'
+
+matrix_appservice_kakaotalk_appservice_database: "{{
+	{
+		'sqlite': ('sqlite:///' + matrix_appservice_kakaotalk_sqlite_database_path_in_container),
+		'postgres': matrix_appservice_kakaotalk_database_connection_string,
+	}[matrix_appservice_kakaotalk_database_engine]
+}}"
+
+
+# Can be set to enable automatic double-puppeting via Shared Secret Auth (https://github.com/devture/matrix-synapse-shared-secret-auth).
+# Also see: matrix_appservice_kakaotalk_bridge_login_shared_secret_map
+matrix_appservice_kakaotalk_login_shared_secret: ''
+
+matrix_appservice_kakaotalk_bridge_login_shared_secret_map: "{{ {matrix_appservice_kakaotalk_homeserver_domain: matrix_appservice_kakaotalk_login_shared_secret} if matrix_appservice_kakaotalk_login_shared_secret else {} }}"
+
+matrix_appservice_kakaotalk_bridge_permissions: |
+  {{
+    {matrix_appservice_kakaotalk_homeserver_domain: 'user'}
+    | combine({matrix_admin: 'admin'} if matrix_admin else {})
+  }}
+
+matrix_appservice_kakaotalk_appservice_bot_username: kakaotalkbot
+matrix_appservice_kakaotalk_user_prefix: 'kakaotalk_as_'
+
+# Specifies the default log level for all bridge loggers.
+matrix_appservice_kakaotalk_logging_level: WARNING
+
+
+# Default configuration template which covers the generic use case.
+# You can customize it by controlling the various variables inside it.
+#
+# For a more advanced customization, you can extend the default (see `matrix_appservice_kakaotalk_configuration_extension_yaml`)
+# or completely replace this variable with your own template.
+matrix_appservice_kakaotalk_configuration_yaml: "{{ lookup('template', 'templates/config.yaml.j2') }}"
+
+matrix_appservice_kakaotalk_configuration_extension_yaml: |
+  # Your custom YAML configuration goes here.
+  # This configuration extends the default starting configuration (`matrix_appservice_kakaotalk_configuration_yaml`).
+  #
+  # You can override individual variables from the default configuration, or introduce new ones.
+  #
+  # If you need something more special, you can take full control by
+  # completely redefining `matrix_appservice_kakaotalk_configuration_yaml`.
+
+matrix_appservice_kakaotalk_configuration_extension: "{{ matrix_appservice_kakaotalk_configuration_extension_yaml | from_yaml if matrix_appservice_kakaotalk_configuration_extension_yaml | from_yaml is mapping else {} }}"
+
+# Holds the final configuration (a combination of the default and its extension).
+# You most likely don't need to touch this variable. Instead, see `matrix_appservice_kakaotalk_configuration_yaml`.
+matrix_appservice_kakaotalk_configuration: "{{ matrix_appservice_kakaotalk_configuration_yaml | from_yaml | combine(matrix_appservice_kakaotalk_configuration_extension, recursive=True) }}"
+
+
+# Default configuration template which covers the generic use case.
+# You can customize it by controlling the various variables inside it.
+#
+# For a more advanced customization, you can extend the default (see `matrix_appservice_kakaotalk_node_configuration_extension_yaml`)
+# or completely replace this variable with your own template.
+#
+# The side-effect of this lookup is that Ansible would even parse the JSON for us, returning a dict.
+# This is unlike what it does when looking up YAML template files (no automatic parsing there).
+matrix_appservice_kakaotalk_node_configuration_default: "{{ lookup('template', 'templates/node-config.json.j2') }}"
+
+# Your custom JSON configuration for appservice-kakaotalk-node should go to `matrix_appservice_kakaotalk_node_configuration_extension_json`.
+# This configuration extends the default starting configuration (`matrix_appservice_kakaotalk_node_configuration_default`).
+#
+# You can override individual variables from the default configuration, or introduce new ones.
+#
+# If you need something more special, you can take full control by
+# completely redefining `matrix_appservice_kakaotalk_node_configuration_default`.
+#
+# Example configuration extension follows:
+#
+# matrix_appservice_kakaotalk_node_configuration_extension_json: |
+#  {
+#  "register_timeout": 5000
+#  }
+matrix_appservice_kakaotalk_node_configuration_extension_json: '{}'
+
+matrix_appservice_kakaotalk_node_configuration_extension: "{{ matrix_appservice_kakaotalk_node_configuration_extension_json | from_json if matrix_appservice_kakaotalk_node_configuration_extension_json | from_json is mapping else {} }}"
+
+# Holds the final appservice-kakaotalk-node configuration (a combination of the default and its extension).
+# You most likely don't need to touch this variable. Instead, see `matrix_appservice_kakaotalk_node_configuration_default`.
+matrix_appservice_kakaotalk_node_configuration: "{{ matrix_appservice_kakaotalk_node_configuration_default | combine(matrix_appservice_kakaotalk_node_configuration_extension, recursive=True) }}"
+
+
+matrix_appservice_kakaotalk_registration_yaml: |
+  id: appservice-kakaotalk
+  as_token: {{ matrix_appservice_kakaotalk_appservice_token|to_json }}
+  hs_token: {{ matrix_appservice_kakaotalk_homeserver_token|to_json }}
+  namespaces:
+    users:
+    - exclusive: true
+      regex: '^@{{ matrix_appservice_kakaotalk_user_prefix | regex_escape }}.*:{{ matrix_appservice_kakaotalk_homeserver_domain | regex_escape }}$'
+    - exclusive: true
+      regex: '^@{{ matrix_appservice_kakaotalk_appservice_bot_username | regex_escape }}:{{ matrix_appservice_kakaotalk_homeserver_domain | regex_escape }}$'
+  url: {{ matrix_appservice_kakaotalk_appservice_address|to_json }}
+  sender_localpart: _appservice_kakaotalk
+  rate_limited: false
+
+matrix_appservice_kakaotalk_registration: "{{ matrix_appservice_kakaotalk_registration_yaml | from_yaml }}"
diff --git a/roles/matrix-bridge-appservice-kakaotalk/tasks/init.yml b/roles/matrix-bridge-appservice-kakaotalk/tasks/init.yml
new file mode 100644
index 000000000..c2679b356
--- /dev/null
+++ b/roles/matrix-bridge-appservice-kakaotalk/tasks/init.yml
@@ -0,0 +1,28 @@
+---
+# See https://github.com/spantaleev/matrix-docker-ansible-deploy/issues/1070
+# and https://github.com/spantaleev/matrix-docker-ansible-deploy/commit/1ab507349c752042d26def3e95884f6df8886b74#commitcomment-51108407
+- name: Fail if trying to self-build on Ansible < 2.8
+  ansible.builtin.fail:
+    msg: "To self-build the appservice-kakaotalk image, you should use Ansible 2.8 or higher. See docs/ansible.md"
+  when: "ansible_version.major == 2 and ansible_version.minor < 8 and matrix_appservice_kakaotalk_container_image_self_build and matrix_appservice_kakaotalk_enabled"
+
+- ansible.builtin.set_fact:
+    matrix_systemd_services_list: "{{ matrix_systemd_services_list + ['matrix-appservice-kakaotalk.service', 'matrix-appservice-kakaotalk-node.service'] }}"
+  when: matrix_appservice_kakaotalk_enabled | bool
+
+# If the matrix-synapse role is not used, these variables may not exist.
+- ansible.builtin.set_fact:
+    matrix_synapse_container_extra_arguments: >
+      {{
+        matrix_synapse_container_extra_arguments | default([])
+        +
+        ["--mount type=bind,src={{ matrix_appservice_kakaotalk_config_path }}/registration.yaml,dst=/matrix-appservice-kakaotalk-registration.yaml,ro"]
+      }}
+
+    matrix_synapse_app_service_config_files: >
+      {{
+        matrix_synapse_app_service_config_files | default([])
+        +
+        ["/matrix-appservice-kakaotalk-registration.yaml"]
+      }}
+  when: matrix_appservice_kakaotalk_enabled | bool
diff --git a/roles/matrix-bridge-appservice-kakaotalk/tasks/main.yml b/roles/matrix-bridge-appservice-kakaotalk/tasks/main.yml
new file mode 100644
index 000000000..dfb286f2c
--- /dev/null
+++ b/roles/matrix-bridge-appservice-kakaotalk/tasks/main.yml
@@ -0,0 +1,23 @@
+---
+
+- ansible.builtin.import_tasks: "{{ role_path }}/tasks/init.yml"
+  tags:
+    - always
+
+- ansible.builtin.import_tasks: "{{ role_path }}/tasks/validate_config.yml"
+  when: "run_setup | bool and matrix_appservice_kakaotalk_enabled | bool"
+  tags:
+    - setup-all
+    - setup-appservice-kakaotalk
+
+- ansible.builtin.import_tasks: "{{ role_path }}/tasks/setup_install.yml"
+  when: "run_setup | bool and matrix_appservice_kakaotalk_enabled | bool"
+  tags:
+    - setup-all
+    - setup-appservice-kakaotalk
+
+- ansible.builtin.import_tasks: "{{ role_path }}/tasks/setup_uninstall.yml"
+  when: "run_setup | bool and not matrix_appservice_kakaotalk_enabled | bool"
+  tags:
+    - setup-all
+    - setup-appservice-kakaotalk
diff --git a/roles/matrix-bridge-appservice-kakaotalk/tasks/setup_install.yml b/roles/matrix-bridge-appservice-kakaotalk/tasks/setup_install.yml
new file mode 100644
index 000000000..def73c595
--- /dev/null
+++ b/roles/matrix-bridge-appservice-kakaotalk/tasks/setup_install.yml
@@ -0,0 +1,125 @@
+---
+
+# If the matrix-synapse role is not used, `matrix_synapse_role_executed` won't exist.
+# We don't want to fail in such cases.
+- name: Fail if matrix-synapse role already executed
+  ansible.builtin.fail:
+    msg: >-
+      The matrix-bridge-matrix-appservice-kakaotalk role needs to execute before the matrix-synapse role.
+  when: "matrix_synapse_role_executed | default(False)"
+
+- name: Ensure matrix-appservice-kakaotalk image is pulled
+  docker_image:
+    name: "{{ matrix_appservice_kakaotalk_docker_image }}"
+    source: "{{ 'pull' if ansible_version.major > 2 or ansible_version.minor > 7 else omit }}"
+    force_source: "{{ matrix_appservice_kakaotalk_docker_image_force_pull if ansible_version.major > 2 or ansible_version.minor >= 8 else omit }}"
+    force: "{{ omit if ansible_version.major > 2 or ansible_version.minor >= 8 else matrix_appservice_kakaotalk_docker_image_force_pull }}"
+  when: not matrix_appservice_kakaotalk_container_image_self_build
+  register: result
+  retries: "{{ matrix_container_retries_count }}"
+  delay: "{{ matrix_container_retries_delay }}"
+  until: result is not failed
+
+- name: Ensure matrix-appservice-kakaotalk-node image is pulled
+  docker_image:
+    name: "{{ matrix_appservice_kakaotalk_node_docker_image }}"
+    source: "{{ 'pull' if ansible_version.major > 2 or ansible_version.minor > 7 else omit }}"
+    force_source: "{{ matrix_appservice_kakaotalk_node_docker_image_force_pull if ansible_version.major > 2 or ansible_version.minor >= 8 else omit }}"
+    force: "{{ omit if ansible_version.major > 2 or ansible_version.minor >= 8 else matrix_appservice_kakaotalk_node_docker_image_force_pull }}"
+  when: not matrix_appservice_kakaotalk_container_image_self_build
+  register: result
+  retries: "{{ matrix_container_retries_count }}"
+  delay: "{{ matrix_container_retries_delay }}"
+  until: result is not failed
+
+- name: Ensure matrix-appservice-kakaotalk paths exist
+  ansible.builtin.file:
+    path: "{{ item.path }}"
+    state: directory
+    mode: 0750
+    owner: "{{ matrix_user_username }}"
+    group: "{{ matrix_user_groupname }}"
+  with_items:
+    - {path: "{{ matrix_appservice_kakaotalk_base_path }}", when: true}
+    - {path: "{{ matrix_appservice_kakaotalk_config_path }}", when: true}
+    - {path: "{{ matrix_appservice_kakaotalk_data_path }}", when: true}
+    - {path: "{{ matrix_appservice_kakaotalk_docker_src_files_path }}", when: "{{ matrix_appservice_kakaotalk_container_image_self_build }}"}
+  when: item.when | bool
+
+- name: Ensure matrix-appservice-kakaotalk repository is present on self-build
+  ansible.builtin.git:
+    repo: "{{ matrix_appservice_kakaotalk_container_image_self_build_repo }}"
+    dest: "{{ matrix_appservice_kakaotalk_docker_src_files_path }}"
+    version: "{{ matrix_appservice_kakaotalk_container_image_self_build_repo_version }}"
+    force: "yes"
+  become: true
+  become_user: "{{ matrix_user_username }}"
+  register: matrix_appservice_kakaotalk_git_pull_results
+  when: "matrix_appservice_kakaotalk_container_image_self_build | bool"
+
+- name: Ensure matrix-appservice-kakaotalk-node Docker image is built
+  docker_image:
+    name: "{{ matrix_appservice_kakaotalk_node_docker_image }}"
+    source: build
+    force_source: "{{ matrix_appservice_kakaotalk_git_pull_results.changed if ansible_version.major > 2 or ansible_version.minor >= 8 else omit }}"
+    force: "{{ omit if ansible_version.major > 2 or ansible_version.minor >= 8 else matrix_appservice_kakaotalk_git_pull_results.changed }}"
+    build:
+      dockerfile: Dockerfile
+      path: "{{ matrix_appservice_kakaotalk_docker_src_files_path }}/node"
+      pull: true
+  when: "matrix_appservice_kakaotalk_container_image_self_build | bool"
+
+- name: Ensure matrix-appservice-kakaotalk Docker image is built
+  docker_image:
+    name: "{{ matrix_appservice_kakaotalk_docker_image }}"
+    source: build
+    force_source: "{{ matrix_appservice_kakaotalk_git_pull_results.changed if ansible_version.major > 2 or ansible_version.minor >= 8 else omit }}"
+    force: "{{ omit if ansible_version.major > 2 or ansible_version.minor >= 8 else matrix_appservice_kakaotalk_git_pull_results.changed }}"
+    build:
+      dockerfile: Dockerfile
+      path: "{{ matrix_appservice_kakaotalk_docker_src_files_path }}"
+      pull: true
+  when: "matrix_appservice_kakaotalk_container_image_self_build | bool"
+
+- name: Ensure matrix-appservice-kakaotalk-node config.json installed
+  ansible.builtin.copy:
+    content: "{{ matrix_appservice_kakaotalk_node_configuration | to_nice_json }}"
+    dest: "{{ matrix_appservice_kakaotalk_config_path }}/node-config.json"
+    mode: 0644
+    owner: "{{ matrix_user_username }}"
+    group: "{{ matrix_user_groupname }}"
+
+- name: Ensure matrix-appservice-kakaotalk config.yaml installed
+  ansible.builtin.copy:
+    content: "{{ matrix_appservice_kakaotalk_configuration | to_nice_yaml(indent=2, width=999999) }}"
+    dest: "{{ matrix_appservice_kakaotalk_config_path }}/config.yaml"
+    mode: 0644
+    owner: "{{ matrix_user_username }}"
+    group: "{{ matrix_user_groupname }}"
+
+- name: Ensure matrix-appservice-kakaotalk registration.yaml installed
+  ansible.builtin.copy:
+    content: "{{ matrix_appservice_kakaotalk_registration | to_nice_yaml(indent=2, width=999999) }}"
+    dest: "{{ matrix_appservice_kakaotalk_config_path }}/registration.yaml"
+    mode: 0644
+    owner: "{{ matrix_user_username }}"
+    group: "{{ matrix_user_groupname }}"
+
+- name: Ensure matrix-appservice-kakaotalk-node.service installed
+  ansible.builtin.template:
+    src: "{{ role_path }}/templates/systemd/matrix-appservice-kakaotalk-node.service.j2"
+    dest: "{{ matrix_systemd_path }}/matrix-appservice-kakaotalk-node.service"
+    mode: 0644
+  register: matrix_appservice_kakaotalk_node_systemd_service_result
+
+- name: Ensure matrix-appservice-kakaotalk.service installed
+  ansible.builtin.template:
+    src: "{{ role_path }}/templates/systemd/matrix-appservice-kakaotalk.service.j2"
+    dest: "{{ matrix_systemd_path }}/matrix-appservice-kakaotalk.service"
+    mode: 0644
+  register: matrix_appservice_kakaotalk_systemd_service_result
+
+- name: Ensure systemd reloaded after matrix-appservice-kakaotalk.service or matrix-appservice-kakaotalk-node.service installation
+  ansible.builtin.service:
+    daemon_reload: true
+  when: matrix_appservice_kakaotalk_node_systemd_service_result.changed or matrix_appservice_kakaotalk_systemd_service_result.changed
diff --git a/roles/matrix-bridge-appservice-kakaotalk/tasks/setup_uninstall.yml b/roles/matrix-bridge-appservice-kakaotalk/tasks/setup_uninstall.yml
new file mode 100644
index 000000000..fb11c3833
--- /dev/null
+++ b/roles/matrix-bridge-appservice-kakaotalk/tasks/setup_uninstall.yml
@@ -0,0 +1,41 @@
+---
+
+- name: Check existence of matrix-appservice-kakaotalk service
+  ansible.builtin.stat:
+    path: "{{ matrix_systemd_path }}/matrix-appservice-kakaotalk.service"
+  register: matrix_appservice_kakaotalk_service_stat
+
+- name: Ensure matrix-appservice-kakaotalk is stopped
+  ansible.builtin.service:
+    name: matrix-appservice-kakaotalk
+    state: stopped
+    enabled: false
+    daemon_reload: true
+  when: "matrix_appservice_kakaotalk_service_stat.stat.exists"
+
+- name: Check existence of matrix-appservice-kakaotalk-node service
+  ansible.builtin.stat:
+    path: "{{ matrix_systemd_path }}/matrix-appservice-kakaotalk-node.service"
+  register: matrix_appservice_kakaotalk_node_service_stat
+
+- name: Ensure matrix-appservice-kakaotalk-node is stopped
+  ansible.builtin.service:
+    name: matrix-appservice-kakaotalk-node
+    state: stopped
+    enabled: false
+    daemon_reload: true
+  when: "matrix_appservice_kakaotalk_node_service_stat.stat.exists"
+
+- name: Ensure matrix-appservice-kakaotalk.service files don't exist
+  ansible.builtin.file:
+    path: "{{ item }}"
+    state: absent
+  with_items:
+    - "{{ matrix_systemd_path }}/matrix-appservice-kakaotalk-node.service"
+    - "{{ matrix_systemd_path }}/matrix-appservice-kakaotalk.service"
+  when: "matrix_appservice_kakaotalk_service_stat.stat.exists"
+
+- name: Ensure systemd reloaded after matrix-appservice-kakaotalk service files removal
+  ansible.builtin.service:
+    daemon_reload: true
+  when: "matrix_appservice_kakaotalk_service_stat.stat.exists or matrix_appservice_kakaotalk_node_service_stat.stat.exists"
diff --git a/roles/matrix-bridge-appservice-kakaotalk/tasks/validate_config.yml b/roles/matrix-bridge-appservice-kakaotalk/tasks/validate_config.yml
new file mode 100644
index 000000000..4f838e7a5
--- /dev/null
+++ b/roles/matrix-bridge-appservice-kakaotalk/tasks/validate_config.yml
@@ -0,0 +1,10 @@
+---
+
+- name: Fail if required settings not defined
+  ansible.builtin.fail:
+    msg: >-
+      You need to define a required configuration setting (`{{ item }}`).
+  when: "vars[item] == ''"
+  with_items:
+    - "matrix_appservice_kakaotalk_appservice_token"
+    - "matrix_appservice_kakaotalk_homeserver_token"
diff --git a/roles/matrix-bridge-appservice-kakaotalk/templates/config.yaml.j2 b/roles/matrix-bridge-appservice-kakaotalk/templates/config.yaml.j2
new file mode 100644
index 000000000..186e58d08
--- /dev/null
+++ b/roles/matrix-bridge-appservice-kakaotalk/templates/config.yaml.j2
@@ -0,0 +1,276 @@
+# Homeserver details
+homeserver:
+    # The address that this appservice can use to connect to the homeserver.
+    address: {{ matrix_appservice_kakaotalk_homeserver_address|to_json }}
+    # The domain of the homeserver (for MXIDs, etc).
+    domain: {{ matrix_appservice_kakaotalk_homeserver_domain|to_json }}
+    # Whether or not to verify the SSL certificate of the homeserver.
+    # Only applies if address starts with https://
+    verify_ssl: true
+    # Whether or not the homeserver supports asmux-specific endpoints,
+    # such as /_matrix/client/unstable/net.maunium.asmux/dms for atomically
+    # updating m.direct.
+    asmux: false
+    # Number of retries for all HTTP requests if the homeserver isn't reachable.
+    http_retry_count: 4
+    # The URL to push real-time bridge status to.
+    # If set, the bridge will make POST requests to this URL whenever a user's MQTT connection state changes.
+    # The bridge will use the appservice as_token to authorize requests.
+    status_endpoint: null
+    # Endpoint for reporting per-message status.
+    message_send_checkpoint_endpoint: null
+    # Whether asynchronous uploads via MSC2246 should be enabled for media.
+    # Requires a media repo that supports MSC2246.
+    async_media: false
+
+# Application service host/registration related details
+# Changing these values requires regeneration of the registration.
+appservice:
+    # The address that the homeserver can use to connect to this appservice.
+    address: {{ matrix_appservice_kakaotalk_appservice_address|to_json }}
+
+    # The hostname and port where this appservice should listen.
+    hostname: 0.0.0.0
+    port: 11115
+    # The maximum body size of appservice API requests (from the homeserver) in mebibytes
+    # Usually 1 is enough, but on high-traffic bridges you might need to increase this to avoid 413s
+    max_body_size: 1
+
+    # The full URI to the database. SQLite and Postgres are supported.
+    # Format examples:
+    #   SQLite:   sqlite:///filename.db
+    #   Postgres: postgres://username:password@hostname/dbname
+    database: {{ matrix_appservice_kakaotalk_appservice_database|to_json }}
+    # Additional arguments for asyncpg.create_pool() or sqlite3.connect()
+    # https://magicstack.github.io/asyncpg/current/api/index.html#asyncpg.pool.create_pool
+    # https://docs.python.org/3/library/sqlite3.html#sqlite3.connect
+    # For sqlite, min_size is used as the connection thread pool size and max_size is ignored.
+    database_opts:
+        min_size: 5
+        max_size: 10
+
+    # The unique ID of this appservice.
+    id: appservice-kakaotalk
+    # Username of the appservice bot.
+    bot_username: {{ matrix_appservice_kakaotalk_appservice_bot_username|to_json }}
+    # Display name and avatar for bot. Set to "remove" to remove display name/avatar, leave empty
+    # to leave display name/avatar as-is.
+    bot_displayname: KakaoTalk bridge bot
+    bot_avatar:
+
+    # Whether or not to receive ephemeral events via appservice transactions.
+    # Requires MSC2409 support (i.e. Synapse 1.22+).
+    # You should disable bridge -> sync_with_custom_puppets when this is enabled.
+    ephemeral_events: false
+
+    # Authentication tokens for AS <-> HS communication. Autogenerated; do not modify.
+    as_token: {{ matrix_appservice_kakaotalk_appservice_token|to_json }}
+    hs_token: {{ matrix_appservice_kakaotalk_homeserver_token|to_json }}
+
+# Prometheus telemetry config. Requires prometheus-client to be installed.
+metrics:
+    enabled: false
+    listen_port: 8000
+
+# Manhole config.
+manhole:
+    # Whether or not opening the manhole is allowed.
+    enabled: false
+    # The path for the unix socket.
+    path: /var/tmp/matrix-appservice-kakaotalk.manhole
+    # The list of UIDs who can be added to the whitelist.
+    # If empty, any UIDs can be specified in the open-manhole command.
+    whitelist:
+    - 0
+
+# Config for things that are directly sent to KakaoTalk.
+kakaotalk:
+    device_name: "KakaoTalk Bridge"
+
+# Bridge config
+bridge:
+    # Localpart template of MXIDs for KakaoTalk users.
+    # {userid} is replaced with the user ID of the KakaoTalk user.
+    username_template: "{{ matrix_appservice_kakaotalk_user_prefix }}{userid}"
+    # Displayname template for KakaoTalk users.
+    # {displayname} is replaced with the display name of the KakaoTalk user.
+    displayname_template: "{displayname} (KT)"
+
+    # The prefix for commands. Only required in non-management rooms.
+    command_prefix: {{ matrix_appservice_kakaotalk_command_prefix|to_json }}
+
+    # Number of chats to sync (and create portals for) on startup/login.
+    # Set to 0 to disable automatic syncing, or -1 to sync as much as possible.
+    initial_chat_sync: 20
+    # Whether or not the KakaoTalk users of logged in Matrix users should be
+    # invited to private chats when the user sends a message from another client.
+    invite_own_puppet_to_pm: false
+    # Whether or not to use /sync to get presence, read receipts and typing notifications
+    # when double puppeting is enabled
+    sync_with_custom_puppets: true
+    # Whether or not to update the m.direct account data event when double puppeting is enabled.
+    # Note that updating the m.direct event is not atomic (except with mautrix-asmux)
+    # and is therefore prone to race conditions.
+    sync_direct_chat_list: false
+    # Servers to always allow double puppeting from
+    double_puppet_server_map: {}
+    # Allow using double puppeting from any server with a valid client .well-known file.
+    double_puppet_allow_discovery: false
+    # Shared secrets for https://github.com/devture/matrix-synapse-shared-secret-auth
+    #
+    # If set, custom puppets will be enabled automatically for local users
+    # instead of users having to find an access token and run `login-matrix`
+    # manually.
+    # If using this for other servers than the bridge's server,
+    # you must also set the URL in the double_puppet_server_map.
+    login_shared_secret_map: {{ matrix_appservice_kakaotalk_bridge_login_shared_secret_map|to_json }}
+    # Whether or not to update avatars when syncing all contacts at startup.
+    update_avatar_initial_sync: true
+    # End-to-bridge encryption support options. These require matrix-nio to be installed with pip
+    # and login_shared_secret to be configured in order to get a device for the bridge bot.
+    #
+    # Additionally, https://github.com/matrix-org/synapse/pull/5758 is required if using a normal
+    # application service.
+    encryption:
+        # Allow encryption, work in group chat rooms with e2ee enabled
+        allow: false
+        # Default to encryption, force-enable encryption in all portals the bridge creates
+        # This will cause the bridge bot to be in private chats for the encryption to work properly.
+        default: false
+        # Options for automatic key sharing.
+        key_sharing:
+            # Enable key sharing? If enabled, key requests for rooms where users are in will be fulfilled.
+            # You must use a client that supports requesting keys from other users to use this feature.
+            allow: false
+            # Require the requesting device to have a valid cross-signing signature?
+            # This doesn't require that the bridge has verified the device, only that the user has verified it.
+            # Not yet implemented.
+            require_cross_signing: false
+            # Require devices to be verified by the bridge?
+            # Verification by the bridge is not yet implemented.
+            require_verification: true
+    # Whether or not the bridge should send a read receipt from the bridge bot when a message has
+    # been sent to KakaoTalk.
+    delivery_receipts: false
+    # Whether to allow inviting arbitrary mxids to portal rooms
+    allow_invites: false
+    # Whether or not created rooms should have federation enabled.
+    # If false, created portal rooms will never be federated.
+    federate_rooms: {{ matrix_appservice_kakaotalk_federate_rooms|to_json }}
+    # Settings for backfilling messages from KakaoTalk.
+    backfill:
+        # Whether or not the KakaoTalk users of logged in Matrix users should be
+        # invited to private chats when backfilling history from KakaoTalk. This is
+        # usually needed to prevent rate limits and to allow timestamp massaging.
+        invite_own_puppet: true
+        # Maximum number of messages to backfill initially.
+        # Set to 0 to disable backfilling when creating portal, or -1 to backfill as much as possible.
+        initial_limit: 0
+        # Maximum number of messages to backfill if messages were missed while
+        # the bridge was disconnected.
+        # Set to 0 to disable backfilling missed messages, or -1 to backfill as much as possible.
+        missed_limit: 1000
+        # If using double puppeting, should notifications be disabled
+        # while the initial backfill is in progress?
+        disable_notifications: false
+    # The number of seconds that a disconnection can last without triggering an automatic re-sync
+    # and missed message backfilling when reconnecting.
+    # Set to 0 to always re-sync, or -1 to never re-sync automatically.
+    resync_max_disconnected_time: 5
+    # Should users remain logged in after being disconnected from chatroom updates?
+    # This is a convenience feature, but might make the bridge look more suspicious to KakaoTalk.
+    remain_logged_in_on_disconnect: true
+    # May the bridge restore user logins with session tokens instead of requiring a password?
+    # This is a convenience feature, but might make the bridge look more suspicious to KakaoTalk.
+    # Note that password-based login will be tried first for users who have saved their password.
+    allow_token_relogin: true
+    # Should the bridge connect users to chatroom updates after a token-based login?
+    # This will disconnect any KakaoTalk PC/bridge sessions that were started since the last connection.
+    # This is a convenience feature, but might make the bridge look more suspicious to KakaoTalk.
+    reconnect_on_token_relogin: true
+    # Should the bridge do a resync for connected users on startup?
+    sync_on_startup: true
+    # Whether or not temporary disconnections should send notices to the notice room.
+    # If this is false, disconnections will never send messages and connections will only send
+    # messages if it was disconnected for more than resync_max_disconnected_time seconds.
+    temporary_disconnect_notices: true
+    # Disable bridge notices entirely
+    disable_bridge_notices: false
+    # Set this to true to tell the bridge to re-send m.bridge events to all rooms on the next run.
+    # This field will automatically be changed back to false after it,
+    # except if the config file is not writable.
+    resend_bridge_info: false
+    # Whether or not mute status and tags should only be bridged when the portal room is created.
+    tag_only_on_create: true
+    # If set to true, downloading media from the CDN will use a plain aiohttp client without the usual headers or
+    # other configuration. This may be useful if you don't want to use the default proxy for large files.
+    sandbox_media_download: false
+
+    # Permissions for using the bridge.
+    # Permitted values:
+    #      relay - Allowed to be relayed through the bridge, no access to commands.
+    #       user - Use the bridge with puppeting.
+    #      admin - Use and administrate the bridge.
+    # Permitted keys:
+    #        * - All Matrix users
+    #   domain - All users on that homeserver
+    #     mxid - Specific user
+    permissions: {{ matrix_appservice_kakaotalk_bridge_permissions|to_json }}
+
+    relay:
+        # Whether relay mode should be allowed. If allowed, `!kt set-relay` can be used to turn any
+        # authenticated user into a relaybot for that chat.
+        enabled: false
+        # The formats to use when sending messages to KakaoTalk via a relay user.
+        #
+        # Available variables:
+        #   $sender_displayname - The display name of the sender (e.g. Example User)
+        #   $sender_username    - The username (Matrix ID localpart) of the sender (e.g. exampleuser)
+        #   $sender_mxid        - The Matrix ID of the sender (e.g. @exampleuser:example.com)
+        #   $message            - The message content
+        message_formats:
+            m.text: '<b>$sender_displayname</b>: $message'
+            m.notice: '<b>$sender_displayname<b>: $message'
+            m.emote: '* <b>$sender_displayname<b> $message'
+            m.file: 'File from <b>$sender_displayname</b>: $message'
+            m.image: 'Image from <b>$sender_displayname</b>: $message'
+            m.audio: 'Audio from <b>$sender_displayname</b>: $message'
+            m.video: 'Video from <b>$sender_displayname</b>: $message'
+            m.location: '<b>$sender_displayname</b> sent a location'
+
+rpc:
+    connection:
+        # Either unix or tcp
+        type: tcp
+        # Only for type: unix
+        # path: /rpc/rpc.sock
+        # Only for type: tcp
+        host: matrix-appservice-kakaotalk-node
+        port: 8000
+
+# Python logging configuration.
+#
+# See section 16.7.2 of the Python documentation for more info:
+# https://docs.python.org/3.6/library/logging.config.html#configuration-dictionary-schema
+logging:
+    version: 1
+    formatters:
+        colored:
+            (): matrix_appservice_kakaotalk.util.ColorFormatter
+            format: "[%(asctime)s] [%(levelname)s@%(name)s] %(message)s"
+        normal:
+            format: "[%(asctime)s] [%(levelname)s@%(name)s] %(message)s"
+    handlers:
+        console:
+            class: logging.StreamHandler
+            formatter: colored
+    loggers:
+        mau:
+            level: {{ matrix_appservice_kakaotalk_logging_level|to_json }}
+        paho:
+            level: {{ matrix_appservice_kakaotalk_logging_level|to_json }}
+        aiohttp:
+            level: {{ matrix_appservice_kakaotalk_logging_level|to_json }}
+    root:
+        level: {{ matrix_appservice_kakaotalk_logging_level|to_json }}
+        handlers: [console]
diff --git a/roles/matrix-bridge-appservice-kakaotalk/templates/node-config.json.j2 b/roles/matrix-bridge-appservice-kakaotalk/templates/node-config.json.j2
new file mode 100644
index 000000000..340add39e
--- /dev/null
+++ b/roles/matrix-bridge-appservice-kakaotalk/templates/node-config.json.j2
@@ -0,0 +1,13 @@
+{
+	"listen": {
+		"type": "tcp",
+		"host": "0.0.0.0",
+		"port": 8000,
+		"force": true
+	},
+	"register_timeout": 3000,
+	"logging_keys": {
+		"request": ["mxid"],
+		"response": ["status"]
+	}
+}
diff --git a/roles/matrix-bridge-appservice-kakaotalk/templates/systemd/matrix-appservice-kakaotalk-node.service.j2 b/roles/matrix-bridge-appservice-kakaotalk/templates/systemd/matrix-appservice-kakaotalk-node.service.j2
new file mode 100644
index 000000000..1a526ee61
--- /dev/null
+++ b/roles/matrix-bridge-appservice-kakaotalk/templates/systemd/matrix-appservice-kakaotalk-node.service.j2
@@ -0,0 +1,38 @@
+#jinja2: lstrip_blocks: "True"
+[Unit]
+Description=appservice-kakaotalk-node bridge helper
+{% for service in matrix_appservice_kakaotalk_node_systemd_required_services_list %}
+Requires={{ service }}
+After={{ service }}
+{% endfor %}
+{% for service in matrix_appservice_kakaotalk_node_systemd_wanted_services_list %}
+Wants={{ service }}
+{% endfor %}
+DefaultDependencies=no
+
+[Service]
+Type=simple
+Environment="HOME={{ matrix_systemd_unit_home_path }}"
+ExecStartPre=-{{ matrix_host_command_sh }} -c '{{ matrix_host_command_docker }} kill matrix-appservice-kakaotalk-node 2>/dev/null || true'
+ExecStartPre=-{{ matrix_host_command_sh }} -c '{{ matrix_host_command_docker }} rm matrix-appservice-kakaotalk-node 2>/dev/null || true'
+
+ExecStart={{ matrix_host_command_docker }} run --rm --name matrix-appservice-kakaotalk-node \
+			--log-driver=none \
+			--user={{ matrix_user_uid }}:{{ matrix_user_gid }} \
+			--cap-drop=ALL \
+			--network={{ matrix_docker_network }} \
+			--mount type=bind,src={{ matrix_appservice_kakaotalk_config_path }}/node-config.json,dst=/config.json,ro \
+			{% for arg in matrix_appservice_kakaotalk_node_container_extra_arguments %}
+			{{ arg }} \
+			{% endfor %}
+			{{ matrix_appservice_kakaotalk_node_docker_image }} \
+			node src/main.js --config /config.json
+
+ExecStop=-{{ matrix_host_command_sh }} -c '{{ matrix_host_command_docker }} kill matrix-appservice-kakaotalk-node 2>/dev/null || true'
+ExecStop=-{{ matrix_host_command_sh }} -c '{{ matrix_host_command_docker }} rm matrix-appservice-kakaotalk-node 2>/dev/null || true'
+Restart=always
+RestartSec=30
+SyslogIdentifier=matrix-appservice-kakaotalk-node
+
+[Install]
+WantedBy=multi-user.target
diff --git a/roles/matrix-bridge-appservice-kakaotalk/templates/systemd/matrix-appservice-kakaotalk.service.j2 b/roles/matrix-bridge-appservice-kakaotalk/templates/systemd/matrix-appservice-kakaotalk.service.j2
new file mode 100644
index 000000000..83a8d4dc9
--- /dev/null
+++ b/roles/matrix-bridge-appservice-kakaotalk/templates/systemd/matrix-appservice-kakaotalk.service.j2
@@ -0,0 +1,42 @@
+#jinja2: lstrip_blocks: "True"
+[Unit]
+Description=appservice-kakaotalk bridge
+{% for service in matrix_appservice_kakaotalk_systemd_required_services_list %}
+Requires={{ service }}
+After={{ service }}
+{% endfor %}
+{% for service in matrix_appservice_kakaotalk_systemd_wanted_services_list %}
+Wants={{ service }}
+{% endfor %}
+DefaultDependencies=no
+
+[Service]
+Type=simple
+Environment="HOME={{ matrix_systemd_unit_home_path }}"
+ExecStartPre=-{{ matrix_host_command_sh }} -c '{{ matrix_host_command_docker }} kill matrix-appservice-kakaotalk 2>/dev/null || true'
+ExecStartPre=-{{ matrix_host_command_sh }} -c '{{ matrix_host_command_docker }} rm matrix-appservice-kakaotalk 2>/dev/null || true'
+
+# Intentional delay, so that the homeserver (we likely depend on) can manage to start.
+ExecStartPre={{ matrix_host_command_sleep }} 5
+
+ExecStart={{ matrix_host_command_docker }} run --rm --name matrix-appservice-kakaotalk \
+			--log-driver=none \
+			--user={{ matrix_user_uid }}:{{ matrix_user_gid }} \
+			--cap-drop=ALL \
+			--network={{ matrix_docker_network }} \
+			--mount type=bind,src={{ matrix_appservice_kakaotalk_config_path }},dst=/config,ro \
+			--mount type=bind,src={{ matrix_appservice_kakaotalk_data_path }},dst=/data \
+			{% for arg in matrix_appservice_kakaotalk_container_extra_arguments %}
+			{{ arg }} \
+			{% endfor %}
+			{{ matrix_appservice_kakaotalk_docker_image }} \
+			python3 -m matrix_appservice_kakaotalk -c /config/config.yaml --no-update
+
+ExecStop=-{{ matrix_host_command_sh }} -c '{{ matrix_host_command_docker }} kill matrix-appservice-kakaotalk 2>/dev/null || true'
+ExecStop=-{{ matrix_host_command_sh }} -c '{{ matrix_host_command_docker }} rm matrix-appservice-kakaotalk 2>/dev/null || true'
+Restart=always
+RestartSec=30
+SyslogIdentifier=matrix-appservice-kakaotalk
+
+[Install]
+WantedBy=multi-user.target
diff --git a/setup.yml b/setup.yml
index 49612a8cd..30538d819 100755
--- a/setup.yml
+++ b/setup.yml
@@ -17,6 +17,7 @@
     - matrix-bridge-appservice-slack
     - matrix-bridge-appservice-webhooks
     - matrix-bridge-appservice-irc
+    - matrix-bridge-appservice-kakaotalk
     - matrix-bridge-beeper-linkedin
     - matrix-bridge-go-skype-bridge
     - matrix-bridge-mautrix-facebook