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[TrueCloudLab#21] Support multiple configs

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Signed-off-by: Denis Kirillov <d.kirillov@yadro.com>
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Denis Kirillov 2023-02-03 13:00:18 +03:00 • committed by Alex Vanin
parent b35f146cec
commit 1ce8b8a30d
6 changed files with 101 additions and 19 deletions
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17
docs/configuration.md
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@ -110,6 +110,23 @@ A path to a configuration file can be specified with `--config` parameter:
$ frostfs-s3-gw --config your-config.yaml
```
### Multiple configs
You can use several config files when running application. It allows you to split configuration into parts.
For example, you can use separate yaml file for pprof and prometheus section in config (see [config examples](../config)).
You can either provide several files with repeating `--config` flag or provide path to the dir that contains all configs using `--config-dir` flag.
Also, you can combine these flags:
```shell
$ frostfs-s3-gw --config ./config/config.yaml --config /your/partial/config.yaml --config-dir ./config/dir
```
**Note:** next file in `--config` flag overwrites values from the previous one.
Files from `--config-dir` directory overwrite values from `--config` files.
So the command above run `frostfs-s3-gw` to listen on `0.0.0.0:8080` address (value from `./config/config.yaml`),
applies parameters from `/your/partial/config.yaml`,
enable pprof (value from `./config/dir/pprof.yaml`) and prometheus (value from `./config/dir/prometheus.yaml`).
### Reload on SIGHUP
Some config values can be reloaded on SIGHUP signal.