Refactor docker locations and README.

This addresses #3224

4 files changed, 2 insertions, 422 deletions

diff --git a/contrib/docker/README.md b/contrib/docker/README.md
index 562cdaac2b..10b15b0407 100644
--- a/contrib/docker/README.md
+++ b/contrib/docker/README.md
@@ -1,23 +1,5 @@
 # Synapse Docker
 
-The `matrixdotorg/synapse` Docker image will run Synapse as a single process. It does not provide a
-database server or a TURN server, you should run these separately.
-
-If you run a Postgres server, you should simply include it in the same Compose
-project or set the proper environment variables and the image will automatically
-use that server.
-
-## Build
-
-Build the docker image with the `docker-compose build` command.
-
-You may have a local Python wheel cache available, in which case copy the relevant packages in the ``cache/`` directory at the root of the project.
-
-## Run
-
-This image is designed to run either with an automatically generated configuration
-file or with a custom configuration that requires manual edition.
-
 ### Automated configuration
 
 It is recommended that you use Docker Compose to run your containers, including
@@ -54,94 +36,6 @@ Then, customize your configuration and run the server:
 docker-compose up -d
 ```
 
-### Without Compose
-
-If you do not wish to use Compose, you may still run this image using plain
-Docker commands. Note that the following is just a guideline and you may need
-to add parameters to the docker run command to account for the network situation
-with your postgres database.
-
-```
-docker run \
-    -d \
-    --name synapse \
-    -v ${DATA_PATH}:/data \
-    -e SYNAPSE_SERVER_NAME=my.matrix.host \
-    -e SYNAPSE_REPORT_STATS=yes \
-    docker.io/matrixdotorg/synapse:latest
-```
-
-## Volumes
-
-The image expects a single volume, located at ``/data``, that will hold:
-
-* temporary files during uploads;
-* uploaded media and thumbnails;
-* the SQLite database if you do not configure postgres;
-* the appservices configuration.
-
-You are free to use separate volumes depending on storage endpoints at your
-disposal. For instance, ``/data/media`` coud be stored on a large but low
-performance hdd storage while other files could be stored on high performance
-endpoints.
-
-In order to setup an application service, simply create an ``appservices``
-directory in the data volume and write the application service Yaml
-configuration file there. Multiple application services are supported.
-
-## Environment
-
-Unless you specify a custom path for the configuration file, a very generic
-file will be generated, based on the following environment settings.
-These are a good starting point for setting up your own deployment.
-
-Global settings:
-
-* ``UID``, the user id Synapse will run as [default 991]
-* ``GID``, the group id Synapse will run as [default 991]
-* ``SYNAPSE_CONFIG_PATH``, path to a custom config file
-
-If ``SYNAPSE_CONFIG_PATH`` is set, you should generate a configuration file
-then customize it manually. No other environment variable is required.
-
-Otherwise, a dynamic configuration file will be used. The following environment
-variables are available for configuration:
-
-* ``SYNAPSE_SERVER_NAME`` (mandatory), the current server public hostname.
-* ``SYNAPSE_REPORT_STATS``, (mandatory, ``yes`` or ``no``), enable anonymous
-  statistics reporting back to the Matrix project which helps us to get funding.
-* ``SYNAPSE_NO_TLS``, set this variable to disable TLS in Synapse (use this if
-  you run your own TLS-capable reverse proxy).
-* ``SYNAPSE_ENABLE_REGISTRATION``, set this variable to enable registration on
-  the Synapse instance.
-* ``SYNAPSE_ALLOW_GUEST``, set this variable to allow guest joining this server.
-* ``SYNAPSE_EVENT_CACHE_SIZE``, the event cache size [default `10K`].
-* ``SYNAPSE_CACHE_FACTOR``, the cache factor [default `0.5`].
-* ``SYNAPSE_RECAPTCHA_PUBLIC_KEY``, set this variable to the recaptcha public
-  key in order to enable recaptcha upon registration.
-* ``SYNAPSE_RECAPTCHA_PRIVATE_KEY``, set this variable to the recaptcha private
-  key in order to enable recaptcha upon registration.
-* ``SYNAPSE_TURN_URIS``, set this variable to the coma-separated list of TURN
-  uris to enable TURN for this homeserver.
-* ``SYNAPSE_TURN_SECRET``, set this to the TURN shared secret if required.
-
-Shared secrets, that will be initialized to random values if not set:
-
-* ``SYNAPSE_REGISTRATION_SHARED_SECRET``, secret for registrering users if
-  registration is disable.
-* ``SYNAPSE_MACAROON_SECRET_KEY`` secret for signing access tokens
-  to the server.
-
-Database specific values (will use SQLite if not set):
-
-* `POSTGRES_DB` - The database name for the synapse postgres database. [default: `synapse`]
-* `POSTGRES_HOST` - The host of the postgres database if you wish to use postgresql instead of sqlite3. [default: `db` which is useful when using a container on the same docker network in a compose file where the postgres service is called `db`]
-* `POSTGRES_PASSWORD` - The password for the synapse postgres database. **If this is set then postgres will be used instead of sqlite3.** [default: none] **NOTE**: You are highly encouraged to use postgresql! Please use the compose file to make it easier to deploy.
-* `POSTGRES_USER` - The user for the synapse postgres database. [default: `matrix`]
-
-Mail server specific values (will not send emails if not set):
+### More information
 
-* ``SYNAPSE_SMTP_HOST``, hostname to the mail server.
-* ``SYNAPSE_SMTP_PORT``, TCP port for accessing the mail server [default ``25``].
-* ``SYNAPSE_SMTP_USER``, username for authenticating against the mail server if any.
-* ``SYNAPSE_SMTP_PASSWORD``, password for authenticating against the mail server if any.
+For more information on required environment variables and mounts, see the main docker documentation at `docker/README.md`
diff --git a/contrib/docker/conf/homeserver.yaml b/contrib/docker/conf/homeserver.yaml
deleted file mode 100644
index 6bc25bb45f..0000000000
--- a/contrib/docker/conf/homeserver.yaml
+++ /dev/null
@@ -1,219 +0,0 @@
-# vim:ft=yaml
-
-## TLS ##
-
-tls_certificate_path: "/data/{{ SYNAPSE_SERVER_NAME }}.tls.crt"
-tls_private_key_path: "/data/{{ SYNAPSE_SERVER_NAME }}.tls.key"
-tls_dh_params_path: "/data/{{ SYNAPSE_SERVER_NAME }}.tls.dh"
-no_tls: {{ "True" if SYNAPSE_NO_TLS else "False" }}
-tls_fingerprints: []
-
-## Server ##
-
-server_name: "{{ SYNAPSE_SERVER_NAME }}"
-pid_file: /homeserver.pid
-web_client: False
-soft_file_limit: 0
-
-## Ports ##
-
-listeners:
-  {% if not SYNAPSE_NO_TLS %}
-  -
-    port: 8448
-    bind_addresses: ['0.0.0.0']
-    type: http
-    tls: true
-    x_forwarded: false
-    resources:
-      - names: [client]
-        compress: true
-      - names: [federation]  # Federation APIs
-        compress: false
-  {% endif %}
-
-  - port: 8008
-    tls: false
-    bind_addresses: ['0.0.0.0']
-    type: http
-    x_forwarded: false
-
-    resources:
-      - names: [client]
-        compress: true
-      - names: [federation]
-        compress: false
-
-## Database ##
-
-{% if POSTGRES_PASSWORD %}
-database:
-  name: "psycopg2"
-  args:
-    user: "{{ POSTGRES_USER or "synapse" }}"
-    password: "{{ POSTGRES_PASSWORD }}"
-    database: "{{ POSTGRES_DB or "synapse" }}"
-    host: "{{ POSTGRES_HOST or "db" }}"
-    port: "{{ POSTGRES_PORT or "5432" }}"
-    cp_min: 5
-    cp_max: 10
-{% else %}
-database:
-  name: "sqlite3"
-  args:
-    database: "/data/homeserver.db"
-{% endif %}
-
-## Performance ##
-
-event_cache_size: "{{ SYNAPSE_EVENT_CACHE_SIZE or "10K" }}"
-verbose: 0
-log_file: "/data/homeserver.log"
-log_config: "/compiled/log.config"
-
-## Ratelimiting ##
-
-rc_messages_per_second: 0.2
-rc_message_burst_count: 10.0
-federation_rc_window_size: 1000
-federation_rc_sleep_limit: 10
-federation_rc_sleep_delay: 500
-federation_rc_reject_limit: 50
-federation_rc_concurrent: 3
-
-## Files ##
-
-media_store_path: "/data/media"
-uploads_path: "/data/uploads"
-max_upload_size: "10M"
-max_image_pixels: "32M"
-dynamic_thumbnails: false
-
-# List of thumbnail to precalculate when an image is uploaded.
-thumbnail_sizes:
-- width: 32
-  height: 32
-  method: crop
-- width: 96
-  height: 96
-  method: crop
-- width: 320
-  height: 240
-  method: scale
-- width: 640
-  height: 480
-  method: scale
-- width: 800
-  height: 600
-  method: scale
-
-url_preview_enabled: False
-max_spider_size: "10M"
-
-## Captcha ##
-
-{% if SYNAPSE_RECAPTCHA_PUBLIC_KEY %}
-recaptcha_public_key: "{{ SYNAPSE_RECAPTCHA_PUBLIC_KEY }}"
-recaptcha_private_key: "{{ SYNAPSE_RECAPTCHA_PRIVATE_KEY }}"
-enable_registration_captcha: True
-recaptcha_siteverify_api: "https://www.google.com/recaptcha/api/siteverify"
-{% else %}
-recaptcha_public_key: "YOUR_PUBLIC_KEY"
-recaptcha_private_key: "YOUR_PRIVATE_KEY"
-enable_registration_captcha: False
-recaptcha_siteverify_api: "https://www.google.com/recaptcha/api/siteverify"
-{% endif %}
-
-## Turn ##
-
-{% if SYNAPSE_TURN_URIS %}
-turn_uris:
-{% for uri in SYNAPSE_TURN_URIS.split(',') %}    - "{{ uri }}"
-{% endfor %}
-turn_shared_secret: "{{ SYNAPSE_TURN_SECRET }}"
-turn_user_lifetime: "1h"
-turn_allow_guests: True
-{% else %}
-turn_uris: []
-turn_shared_secret: "YOUR_SHARED_SECRET"
-turn_user_lifetime: "1h"
-turn_allow_guests: True
-{% endif %}
-
-## Registration ##
-
-enable_registration: {{ "True" if SYNAPSE_ENABLE_REGISTRATION else "False" }}
-registration_shared_secret: "{{ SYNAPSE_REGISTRATION_SHARED_SECRET }}"
-bcrypt_rounds: 12
-allow_guest_access: {{ "True" if SYNAPSE_ALLOW_GUEST else "False" }}
-enable_group_creation: true
-
-# The list of identity servers trusted to verify third party
-# identifiers by this server.
-trusted_third_party_id_servers:
-    - matrix.org
-    - vector.im
-    - riot.im
-
-## Metrics ###
-
-{% if SYNAPSE_REPORT_STATS.lower() == "yes" %}
-enable_metrics: True
-report_stats: True
-{% else %}
-enable_metrics: False
-report_stats: False
-{% endif %}
-
-## API Configuration ##
-
-room_invite_state_types:
-    - "m.room.join_rules"
-    - "m.room.canonical_alias"
-    - "m.room.avatar"
-    - "m.room.name"
-
-{% if SYNAPSE_APPSERVICES %}
-app_service_config_files:
-{% for appservice in SYNAPSE_APPSERVICES %}    - "{{ appservice }}"
-{% endfor %}
-{% else %}
-app_service_config_files: []
-{% endif %}
-
-macaroon_secret_key: "{{ SYNAPSE_MACAROON_SECRET_KEY }}"
-expire_access_token: False
-
-## Signing Keys ##
-
-signing_key_path: "/data/{{ SYNAPSE_SERVER_NAME }}.signing.key"
-old_signing_keys: {}
-key_refresh_interval: "1d" # 1 Day.
-
-# The trusted servers to download signing keys from.
-perspectives:
-  servers:
-    "matrix.org":
-      verify_keys:
-        "ed25519:auto":
-          key: "Noi6WqcDj0QmPxCNQqgezwTlBKrfqehY1u2FyWP9uYw"
-
-password_config:
-   enabled: true
-
-{% if SYNAPSE_SMTP_HOST %}
-email:
-   enable_notifs: false
-   smtp_host: "{{ SYNAPSE_SMTP_HOST }}"
-   smtp_port: {{ SYNAPSE_SMTP_PORT or "25" }}
-   smtp_user: "{{ SYNAPSE_SMTP_USER }}"
-   smtp_pass: "{{ SYNAPSE_SMTP_PASSWORD }}"
-   require_transport_security: False
-   notif_from: "{{ SYNAPSE_SMTP_FROM or "hostmaster@" + SYNAPSE_SERVER_NAME }}"
-   app_name: Matrix
-   template_dir: res/templates
-   notif_template_html: notif_mail.html
-   notif_template_text: notif_mail.txt
-   notif_for_new_users: True
-   riot_base_url: "https://{{ SYNAPSE_SERVER_NAME }}"
-{% endif %}
diff --git a/contrib/docker/conf/log.config b/contrib/docker/conf/log.config
deleted file mode 100644
index 1851995802..0000000000
--- a/contrib/docker/conf/log.config
+++ /dev/null
@@ -1,29 +0,0 @@
-version: 1
-
-formatters:
-  precise:
-   format: '%(asctime)s - %(name)s - %(lineno)d - %(levelname)s - %(request)s- %(message)s'
-
-filters:
-  context:
-    (): synapse.util.logcontext.LoggingContextFilter
-    request: ""
-
-handlers:
-  console:
-    class: logging.StreamHandler
-    formatter: precise
-    filters: [context]
-
-loggers:
-    synapse:
-        level: {{ SYNAPSE_LOG_LEVEL or "WARNING" }}
-
-    synapse.storage.SQL:
-        # beware: increasing this to DEBUG will make synapse log sensitive
-        # information such as access tokens.
-        level: {{ SYNAPSE_LOG_LEVEL or "WARNING" }}
-
-root:
-    level: {{ SYNAPSE_LOG_LEVEL or "WARNING" }}
-    handlers: [console]
diff --git a/contrib/docker/start.py b/contrib/docker/start.py
deleted file mode 100755
index 90e8b9c51a..0000000000
--- a/contrib/docker/start.py
+++ /dev/null
@@ -1,66 +0,0 @@
-#!/usr/local/bin/python
-
-import jinja2
-import os
-import sys
-import subprocess
-import glob
-
-# Utility functions
-convert = lambda src, dst, environ: open(dst, "w").write(jinja2.Template(open(src).read()).render(**environ))
-
-def check_arguments(environ, args):
-    for argument in args:
-        if argument not in environ:
-            print("Environment variable %s is mandatory, exiting." % argument)
-            sys.exit(2)
-
-def generate_secrets(environ, secrets):
-    for name, secret in secrets.items():
-        if secret not in environ:
-            filename = "/data/%s.%s.key" % (environ["SYNAPSE_SERVER_NAME"], name)
-            if os.path.exists(filename):
-                with open(filename) as handle: value = handle.read()
-            else:
-                print("Generating a random secret for {}".format(name))
-                value = os.urandom(32).encode("hex")
-                with open(filename, "w") as handle: handle.write(value)
-            environ[secret] = value
-
-# Prepare the configuration
-mode = sys.argv[1] if len(sys.argv) > 1 else None
-environ = os.environ.copy()
-ownership = "{}:{}".format(environ.get("UID", 991), environ.get("GID", 991))
-args = ["python", "-m", "synapse.app.homeserver"]
-
-# In generate mode, generate a configuration, missing keys, then exit
-if mode == "generate":
-    check_arguments(environ, ("SYNAPSE_SERVER_NAME", "SYNAPSE_REPORT_STATS", "SYNAPSE_CONFIG_PATH"))
-    args += [
-        "--server-name", environ["SYNAPSE_SERVER_NAME"],
-        "--report-stats", environ["SYNAPSE_REPORT_STATS"],
-        "--config-path", environ["SYNAPSE_CONFIG_PATH"],
-        "--generate-config"
-    ]
-    os.execv("/usr/local/bin/python", args)
-
-# In normal mode, generate missing keys if any, then run synapse
-else:
-    # Parse the configuration file
-    if "SYNAPSE_CONFIG_PATH" in environ:
-        args += ["--config-path", environ["SYNAPSE_CONFIG_PATH"]]
-    else:
-        check_arguments(environ, ("SYNAPSE_SERVER_NAME", "SYNAPSE_REPORT_STATS"))
-        generate_secrets(environ, {
-            "registration": "SYNAPSE_REGISTRATION_SHARED_SECRET",
-            "macaroon": "SYNAPSE_MACAROON_SECRET_KEY"
-        })
-        environ["SYNAPSE_APPSERVICES"] = glob.glob("/data/appservices/*.yaml")
-        if not os.path.exists("/compiled"): os.mkdir("/compiled")
-        convert("/conf/homeserver.yaml", "/compiled/homeserver.yaml", environ)
-        convert("/conf/log.config", "/compiled/log.config", environ)
-        subprocess.check_output(["chown", "-R", ownership, "/data"])
-        args += ["--config-path", "/compiled/homeserver.yaml"]
-    # Generate missing keys and start synapse
-    subprocess.check_output(args + ["--generate-keys"])
-    os.execv("/sbin/su-exec", ["su-exec", ownership] + args)