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Coder server's primary configuration is done via environment variables. For a full list
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of the options, run `coder server --help` on the host.
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## Access URL
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`CODER_ACCESS_URL` is required if you are not using the tunnel. Set this to the external URL
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that users and workspaces use to connect to Coder (e.g. https://coder.example.com). This
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should not be localhost.
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> Access URL should be a external IP address or domain with DNS records pointing to Coder.
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### Tunnel
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If an access URL is not specified, Coder will create
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a publicly accessible URL to reverse proxy your deployment for simple setup.
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## Wildcard access URL
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`CODER_WILDCARD_ACCESS_URL` is necessary for [port forwarding](../networking/port-forwarding.md#dashboard)
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via the dashboard or running [coder_apps](../templates.md#coder-apps) on an absolute path. Set this to a wildcard
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subdomain that resolves to Coder (e.g. `*.coder.example.com`).
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> If you are providing TLS certificates directly to the Coder server, you must use a single certificate for the
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> root and wildcard domains. Multi-certificate support [is planned](https://github.com/coder/coder/pull/4150).
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## PostgreSQL Database
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Coder uses a PostgreSQL database to store users, workspace metadata, and other deployment information.
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Use `CODER_PG_CONNECTION_URL` to set the database that Coder connects to. If unset, PostgreSQL binaries will be
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downloaded from Maven (https://repo1.maven.org/maven2) and store all data in the config root.
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## System packages
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If you've installed Coder via a [system package](../install/packages.md) Coder, you can
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configure the server by setting the following variables in `/etc/coder.d/coder.env`:
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```sh
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# String. Specifies the external URL (HTTP/S) to access Coder.
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CODER_ACCESS_URL=https://coder.example.com
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# String. Address to serve the API and dashboard.
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CODER_ADDRESS=127.0.0.1:3000
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# String. The URL of a PostgreSQL database to connect to. If empty, PostgreSQL binaries
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# will be downloaded from Maven (https://repo1.maven.org/maven2) and store all
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# data in the config root. Access the built-in database with "coder server postgres-builtin-url".
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CODER_PG_CONNECTION_URL=
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# Boolean. Specifies if TLS will be enabled.
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CODER_TLS_ENABLE=
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# String. Specifies the path to the certificate for TLS. It requires a PEM-encoded file.
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# To configure the listener to use a CA certificate, concatenate the primary
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# certificate and the CA certificate together. The primary certificate should
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# appear first in the combined file.
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CODER_TLS_CERT_FILE=
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# String. Specifies the path to the private key for the certificate. It requires a
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# PEM-encoded file.
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CODER_TLS_KEY_FILE=
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```
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To run Coder as a system service on the host:
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```sh
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# Use systemd to start Coder now and on reboot
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sudo systemctl enable --now coder
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# View the logs to ensure a successful start
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journalctl -u coder.service -b
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```
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To restart Coder after applying system changes:
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```sh
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sudo systemctl restart Coder
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```
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2022-08-10 22:56:21 +00:00
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## Up Next
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- [Get started using Coder](../quickstart.md).
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- [Learn how to upgrade Coder](./upgrade.md).
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