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Document PDNS_ADMIN_SALT env var in readme

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Peter Schiffer 2022-03-25 17:21:02 +01:00
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@ -137,6 +137,14 @@ PDNS_VERSION=""
If this container is linked with pdns-mysql from this repo with alias `pdns`, it will be configured automatically and none of the env vars from above are needed to be specified.
### PowerDNS Admin API keys and SALT
In order to be able to generate an API Key, you will need to specify the SALT via `PDNS_ADMIN_SALT` env var. This is a secret value, which can be generated via command:
```
python3 -c 'import bcrypt; print(bcrypt.gensalt().decode("utf-8"));'
```
Example value looks like `$2b$12$xxxxxxxxxxxxxxxxxxxxxx` - remember that when using docker-compose, literal `$` must be specified as `$$`.
### Persistent data
There is a directory with user uploads which should be persistent: `/opt/powerdns-admin/upload`