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wg-easy-ca-lose/docs/content/advanced/config/optional-config.md
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copilot-swe-agent[bot] fbf24410db Add metrics password override and implement frontend UI indicators
Backend changes:
- Added WG_METRICS_PASSWORD environment variable override
- Updated applyGeneralOverrides() to include metrics password
- Updated /api/admin/overrides endpoint to include metrics password

Frontend changes:
- Added override indicators (warning icons with tooltips) to all form fields
- Updated TextField, NumberField, NullTextField, SwitchField, HostField, ArrayField components
- Added overridden prop support to all form components
- Fetched /api/admin/overrides in all admin pages (interface, general, config, hooks)
- Warning icon displays when field is overridden by environment variable
- ArrayField shows banner when overridden
- Updated documentation with WG_METRICS_PASSWORD

Co-authored-by: kaaax0815 <32197462+kaaax0815@users.noreply.github.com>
2025-11-14 14:30:56 +00:00

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Markdown

---
title: Optional Configuration
---
You can set these environment variables to configure the container. They are not required, but can be useful in some cases.
| Env | Default | Example | Description |
| -------------- | --------- | ----------- | ---------------------------------- |
| `PORT` | `51821` | `6789` | TCP port for Web UI. |
| `HOST` | `0.0.0.0` | `localhost` | IP address web UI binds to. |
| `INSECURE` | `false` | `true` | If access over http is allowed |
| `DISABLE_IPV6` | `false` | `true` | If IPv6 support should be disabled |
/// note | IPv6 Caveats
Disabling IPv6 will disable the creation of the default IPv6 firewall rules and won't add a IPv6 address to the interface and clients.
You will however still see a IPv6 address in the Web UI, but it won't be used.
This option can be removed in the future, as more devices support IPv6.
///
## Configuration Overrides
These environment variables allow you to override settings that would normally be configured through the Admin Panel. When set, these values take precedence over database settings at runtime.
### Interface Settings
| Env | Example | Description |
| -------------- | ------------- | ------------------------- |
| `WG_PORT` | `51820` | WireGuard interface port |
| `WG_DEVICE` | `eth0` | Network device/interface |
| `WG_MTU` | `1420` | Maximum Transmission Unit |
| `WG_IPV4_CIDR` | `10.8.0.0/24` | IPv4 CIDR range |
| `WG_IPV6_CIDR` | `fdcc::/112` | IPv6 CIDR range |
### Client Connection Settings
| Env | Example | Description |
| --------------------------------- | ----------------- | ------------------------------- |
| `WG_HOST` | `vpn.example.com` | Host clients will connect to |
| `WG_CLIENT_PORT` | `51820` | Port clients will connect to |
| `WG_DEFAULT_DNS` | `1.1.1.1,8.8.8.8` | Default DNS servers for clients |
| `WG_DEFAULT_ALLOWED_IPS` | `0.0.0.0/0,::/0` | Default allowed IPs for clients |
| `WG_DEFAULT_MTU` | `1420` | Default MTU for clients |
| `WG_DEFAULT_PERSISTENT_KEEPALIVE` | `25` | Default persistent keepalive |
### General Settings
| Env | Example | Description |
| ----------------------- | ----------------- | ------------------------- |
| `WG_SESSION_TIMEOUT` | `3600` | Session timeout (seconds) |
| `WG_METRICS_PASSWORD` | `mypassword123` | Metrics endpoint password |
| `WG_METRICS_PROMETHEUS` | `true` or `false` | Enable Prometheus metrics |
| `WG_METRICS_JSON` | `true` or `false` | Enable JSON metrics |
### Hooks
| Env | Example | Description |
| -------------- | ------------------------- | --------------------- |
| `WG_PRE_UP` | `echo "Starting WG"` | PreUp hook command |
| `WG_POST_UP` | `iptables -A FORWARD ...` | PostUp hook command |
| `WG_PRE_DOWN` | `echo "Stopping WG"` | PreDown hook command |
| `WG_POST_DOWN` | `iptables -D FORWARD ...` | PostDown hook command |
/// warning | Override Behavior
When these override environment variables are set:
- The specified values will be used at runtime instead of database settings
- You can still update these fields through the Web UI and they will be saved to the database
- However, the overridden values from environment variables will always take precedence
- The Web UI will display the overridden (effective) values
These overrides are useful for containerized environments where configuration should be controlled externally.
///
/// note | Note on Port Variables
- `WG_PORT` - The port WireGuard listens on (interface port)
- `WG_CLIENT_PORT` - The port clients connect to (endpoint port, usually same as `WG_PORT`)
- `PORT` - The port the Web UI listens on (HTTP server port)
///