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Enhanced docu for configuration

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Include that more than one config file can be named.
Describe the relevance of ordering for setting the value.
This commit is contained in:
ObiomaAtWanagu
2025-07-05 11:46:08 +02:00
committed by Jason Volk
parent 9dd2b28605
commit fd080914c2
1 changed files with 21 additions and 6 deletions
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docs/configuration.md
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@@ -7,14 +7,15 @@ This chapter describes various ways to configure Tuwunel.
Tuwunel uses a config file for the majority of the settings, but also supports
setting individual config options via commandline.
Please refer to the [example config
file](./configuration/examples.md#example-configuration) for all of those
settings.
Please refer to the [example config file](./configuration/examples.md#example-configuration) for all of those settings.
The config file to use can be specified on the commandline when running
Tuwunel by specifying the `-c`, `--config` flag. Alternatively, you can use
the environment variable `TUWUNEL_CONFIG` to specify the config file to used.
Conduit's environment variables are supported for backwards compatibility.
Tuwunel by specifying the `-c`, `--config` flag. It is also possible to specify
more than one config file.
Alternatively, you can use the environment variable `TUWUNEL_CONFIG` to specify
the config file to used. Conduit's environment variables are supported for
backwards compatibility.
## Option commandline flag
@@ -31,6 +32,20 @@ string. This does not apply to options that take booleans or numbers:
- `--option log=\"debug\"` works ✅
- `--option server_name='"example.com'"` works ✅
## Relevance of configuration settings
There is a specific sequence for reading and overwriting the settings. The
latest setting takes precedence and defines the configuration.
1. Set in `CONDUIT_CONFIG`.
2. Set in `CONDUWUIT_CONFIG`.
3. Set in `TUWUNEL_CONFIG`.
4. Set in the first config file on the command line (e.g. `-c config_file_1.toml`).
5. Set in the second config file on the command line (e.g. `-c config_file_2.toml`).
6. Set in any additional config file on the command line (e.g. `-c config_file_n.toml`).
7. Set within the options (again, the latest option in the list overrides).
## Execute commandline flag
Tuwunel supports running admin commands on startup using the commandline