111 lines
9.1 KiB
Plaintext
111 lines
9.1 KiB
Plaintext
---
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title: Environment variables
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tags:
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- Configuration
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- Docker
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- Advanced
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- Env
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- Environment variables
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- Variables
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- Database
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- Redis
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- Secrets
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---
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Homarr offers a few environment variables, which can be used to configure the container.
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:::info
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With docker you can add the `_FILE` suffix to any environment variable, which will read the value from a file.
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This is especially useful for [docker secrets](https://docs.docker.com/engine/swarm/secrets/#use-secrets-in-compose).
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:::
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## General
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:::warning
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Using the `PUID` and `PGID` will require you to set the correct permissions on the mounted volumes and if used the docker socket. See more in the [Running as a different user](/docs/advanced/running-as-different-user) documentation.
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:::
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| Environment Variable | Description | Possible values | Default |
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| ------------------------ | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ----------------------------------- | ------- |
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| `PUID` | User ID to run the container as | Any valid user ID | `0` |
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| `PGID` | Group ID to run the container as | Any valid group ID | `0` |
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| `LOG_LEVEL` | Log level to use | `debug` / `info` / `warn` / `error` | `info` |
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| `NO_EXTERNAL_CONNECTION` | Disables some requests that need internet connection | `true` or `false` | `false` |
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| `ENABLE_DNS_CACHING` | Enables dns caching. Enabled by default, but if you experience issues with IPv6 or static IPs, see [#4006](https://github.com/homarr-labs/homarr/issues/4006) or disable this flag | `true` or `false` | `true` |
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## Authentication
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See [Single Sign-On](/docs/advanced/single-sign-on) for more informations.
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## Security
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The `SECRET_ENCRYPTION_KEY` is required. If none is specified before starting the container, a random key will be shown in the error message and the container will exit.
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| Environment Variable | Description | Possible values | Default |
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| ----------------------- | ------------------------------------------- | ----------------------- | ------- |
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| `SECRET_ENCRYPTION_KEY` | Secret used to encrypt secrets in database. | 64 character hex string | - |
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:::info
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A random secret can be generated by using the following command: `openssl rand -hex 32`
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:::
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## Docker
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| Environment Variable | Description | Possible values | Default |
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| --------------------- | ----------------------------------------------- | -------------------------------------------------------------------- | ------- |
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| `DOCKER_HOSTNAMES` | Comma seperated list of hostnames to connect to | For example `localhost,docker.example.com` | - |
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| `DOCKER_PORTS` | Comma seperated list of ports to connect to | For example `2375,2376` | - |
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| `DOCKER_SOCKET_PATHS` | Comma seperated list of paths to sockets | For example `/var/run/docker.sock,/run/user/1000/podman/podman.sock` | - |
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## Database
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| Environment Variable | Description | Possible values | Default |
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| -------------------- | ---------------------------------------------------------------------------------------------------------------------------- | --------------------------------------------- | ----------------------- |
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| `DB_DRIVER` | Database driver to use. Currently `better-sqlite3` is used for sqlite, `mysql2` for mysql and `node-postgres` for postgresql | `better-sqlite3` / `mysql2` / `node-postgres` | `better-sqlite3` |
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| `DB_DIALECT` | Database dialect to use. | `sqlite` / `mysql` / `postgresql` | `sqlite` |
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| `DB_URL` | Database URL to connect to. | Any valid database URL | `/appdata/db/db.sqlite` |
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| `DB_HOST` | Database host to connect to. | Any valid database host | - |
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| `DB_PORT` | Database port to connect to. | Any valid database port | - |
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| `DB_NAME` | Database name to connect to. | Any valid database name | - |
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| `DB_USER` | Database user to connect with. | Any valid database user | - |
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| `DB_PASSWORD` | Database password to connect with. | Any valid database password | - |
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You can either use the url or host, port, name and credentials combined. The URL will be prioritized over the other values.
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## Redis
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By default Redis is running within the installation. (for example in Docker).
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However for example for K8s it can be useful to use an external Redis instance.
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:::note
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External redis is currently not supported with Proxmox Community Scripts
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:::
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| Environment Variable | Description | Possible values | Default |
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| ---------------------- | ---------------------------------------------------------------------------------------------------- | ------------------------ | ------- |
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| `REDIS_IS_EXTERNAL` | Whether Redis is running externally. | `true` / `false` | `false` |
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| `REDIS_HOST` | Hostname of the Redis instance. | Any valid hostname | - |
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| `REDIS_PORT` | Port of the Redis instance. | Any valid port | `6379` |
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| `REDIS_USERNAME` | Username to connect to the Redis instance. | Any valid username | - |
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| `REDIS_PASSWORD` | Password to connect to the Redis instance. | Any valid password | - |
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| `REDIS_DATABASE_INDEX` | Select which database of your redis instance should be used. | Any numeric index | - |
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| `REDIS_TLS_CA` | CA certificate for Redis TLS connections. If a certificate is specified the connection will use TLS. | Any valid CA certificate | - |
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## Proxy
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| Environment Variable | Description | Possible values | Default |
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| -------------------- | ------------------------------------------------------------------- | ------------------------- | ------- |
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| `HTTP_PROXY` | HTTP proxy to use | Any valid HTTP proxy URL | - |
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| `HTTPS_PROXY` | HTTPS proxy to use | Any valid HTTPS proxy URL | - |
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| `NO_PROXY` | Comma separated list of hosts that should be excluded from proxying | Any valid hostnames | - |
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## Advanced deployments
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:::warning
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The advanced deployments environment variables should only be used if you know what you are doing.
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:::
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| Environment Variable | Description |
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| ------------------------ | -------------------------------------------------- |
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| `DB_MIGRATIONS_DISABLED` | Disable db migrations. For example for helm charts |
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