How I Installed matrix-synapse

• RAM: 4 GiB
• Swap: 8 GiB
• Cores: 4
• Root disk space: 180 GiB

Follow this guide.

I found the trickiest bit to be installing the matrix-synapse repositories, which is not very tricky.

sudo apt install -y lsb-release wget apt-transport-https
sudo wget -O /usr/share/keyrings/matrix-org-archive-keyring.gpg https://packages.matrix.org/debian/matrix-org-archive-keyring.gpg
echo "deb [signed-by=/usr/share/keyrings/matrix-org-archive-keyring.gpg] https://packages.matrix.org/debian/ $(lsb_release -cs) main" |
    sudo tee /etc/apt/sources.list.d/matrix-org.list
sudo apt update
sudo apt install matrix-synapse-py3

They said not to use SQLite in production, so I installed Postgresql inside the server container.

I will migrate it to a separate container later. The trick is that the port is exposed within the proxmox environment, so it should be no different than changing the hostname from something like localhost to matrix-db.pluto.sks.lan etc.

Follow this guide.

root@matrix:~# cat /etc/matrix-synapse/homeserver.yaml 
# Configuration file for Synapse.
#
# This is a YAML file: see [1] for a quick introduction. Note in particular
# that *indentation is important*: all the elements of a list or dictionary
# should have the same indentation.
#
# [1] https://docs.ansible.com/ansible/latest/reference_appendices/YAMLSyntax.html
#
# For more information on how to configure Synapse, including a complete accounting of
# each option, go to docs/usage/configuration/config_documentation.md or
# https://element-hq.github.io/synapse/latest/usage/configuration/config_documentation.html
#
# This is set in /etc/matrix-synapse/conf.d/server_name.yaml for Debian installations.
# server_name: "SERVERNAME"
pid_file: "/var/run/matrix-synapse.pid"
listeners:
  - port: 8008
    resources:
    - compress: false
      names:
      - client
      - federation
      - media
      - metrics
      - static
      - health
    tls: false
    type: http
    x_forwarded: true
database:
  name: psycopg2
  args:
    user: XXXXXXXXXXXXXXX
    password: XXXXXXXXXXXXXXXXX
    dbname: XXXXXXXXXXXXXXXXX
    host: localhost
    cp_min: 5
    cp_max: 10
log_config: "/etc/matrix-synapse/log.yaml"
media_store_path: /var/lib/matrix-synapse/media
signing_key_path: "/etc/matrix-synapse/homeserver.signing.key"
trusted_key_servers:
  - server_name: "matrix.org"
macaroon_secret_key: "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX"
public_baseurl: "https://solarpunk.au/"
serve_server_wellknown: true
enable_registration: true
enable_registration_without_verification: true
registrations_require_3pid:
  - email
registration_shared_secret: "XXXXXXXXXXXXXXXXXXX"
allow_public_rooms_over_federation: true
web_client_location: "https://app.element.io/"
allow_public_rooms_without_auth: true
admin_contact: 'mailto:vidak@member.fsf.org'
max_upload_size: 100M

email:
  smtp_host: "mail.riseup.net"
  smtp_port: 465
  smtp_user: "XXXXXXXXXXXXXXXXXXXXXXXXx"
  smtp_pass: "XXXXXXXXXXXXXX"
  require_transport_security: true
  enable_tls: true
  force_tls: true
  notif_from: "Your Friendly %(app)s homeserver <moraleconomyinitiative@riseup.net>"
  app_name: "solarpunk.au matrix server"
  enable_notifs: true
  notif_for_new_users: false
  validation_token_lifetime: 15m
  invite_client_location: https://app.element.io

  subjects:
    message_from_person_in_room: "[%(app)s] You have a message on %(app)s from %(person)s in the %(room)s room..."
    message_from_person: "[%(app)s] You have a message on %(app)s from %(person)s..."
    messages_from_person: "[%(app)s] You have messages on %(app)s from %(person)s..."
    messages_in_room: "[%(app)s] You have messages on %(app)s in the %(room)s room..."
    messages_in_room_and_others: "[%(app)s] You have messages on %(app)s in the %(room)s room and others..."
    messages_from_person_and_others: "[%(app)s] You have messages on %(app)s from %(person)s and others..."
    invite_from_person_to_room: "[%(app)s] %(person)s has invited you to join the %(room)s room on %(app)s..."
    invite_from_person: "[%(app)s] %(person)s has invited you to chat on %(app)s..."
    password_reset: "[%(server_name)s] Password reset"
    email_validation: "[%(server_name)s] Validate your email"