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Coder server's primary configuration is done via environment variables. For a full list
of the options, run coder server --help on the host.
Access URL
CODER_ACCESS_URL is required if you are not using the tunnel. Set this to the external URL
that users and workspaces use to connect to Coder (e.g. https://coder.example.com). This
should not be localhost.
Access URL should be a external IP address or domain with DNS records pointing to Coder.
Tunnel
If an access URL is not specified, Coder will create a publicly accessible URL to reverse proxy your deployment for simple setup.
Wildcard access URL
CODER_WILDCARD_ACCESS_URL is necessary for port forwarding
via the dashboard or running coder_apps on an absolute path. Set this to a wildcard
subdomain that resolves to Coder (e.g. *.coder.example.com).
If you are providing TLS certificates directly to the Coder server, you must use a single certificate for the root and wildcard domains. Multi-certificate support is planned.
PostgreSQL Database
Coder uses a PostgreSQL database to store users, workspace metadata, and other deployment information.
Use CODER_PG_CONNECTION_URL to set the database that Coder connects to. If unset, PostgreSQL binaries will be
downloaded from Maven (https://repo1.maven.org/maven2) and store all data in the config root.
System packages
If you've installed Coder via a system package Coder, you can
configure the server by setting the following variables in /etc/coder.d/coder.env:
# String. Specifies the external URL (HTTP/S) to access Coder.
CODER_ACCESS_URL=https://coder.example.com
# String. Address to serve the API and dashboard.
CODER_ADDRESS=127.0.0.1:3000
# String. The URL of a PostgreSQL database to connect to. If empty, PostgreSQL binaries
# will be downloaded from Maven (https://repo1.maven.org/maven2) and store all
# data in the config root. Access the built-in database with "coder server postgres-builtin-url".
CODER_PG_CONNECTION_URL=
# Boolean. Specifies if TLS will be enabled.
CODER_TLS_ENABLE=
# String. Specifies the path to the certificate for TLS. It requires a PEM-encoded file.
# To configure the listener to use a CA certificate, concatenate the primary
# certificate and the CA certificate together. The primary certificate should
# appear first in the combined file.
CODER_TLS_CERT_FILE=
# String. Specifies the path to the private key for the certificate. It requires a
# PEM-encoded file.
CODER_TLS_KEY_FILE=
To run Coder as a system service on the host:
# Use systemd to start Coder now and on reboot
sudo systemctl enable --now coder
# View the logs to ensure a successful start
journalctl -u coder.service -b
To restart Coder after applying system changes:
sudo systemctl restart Coder