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use anyhow::Result;
use serde::Deserialize;
use crate::config::RuntimeConfig;
// This code is inspired by the Trunk crate (https://github.com/thedodd/trunk)
// This file parses the options that can be declared in the environment.
// runtime.rs applies business logic and builds RuntimeConfig structs.
/// Base configuration options
#[derive(Clone, Default, Deserialize)]
pub struct ConfigOptsBase {
/// This node's private IP address [default: None]
pub private_ip: Option<String>,
/// Expiration time for IGD rules [default: 60]
pub expiration_time: Option<u16>,
/// Refresh time for IGD and Firewall rules [default: 300]
pub refresh_time: Option<u16>,
}
/// ACME configuration options
#[derive(Clone, Default, Deserialize)]
pub struct ConfigOptsAcme {
/// Whether ACME is enabled [default: false]
#[serde(default)]
pub enable: bool,
/// The default domain holder's e-mail [default: None]
pub email: Option<String>,
}
/// Consul configuration options
#[derive(Clone, Default, Deserialize)]
pub struct ConfigOptsConsul {
/// Consul's node name [default: None]
pub node_name: Option<String>,
/// Consul's REST URL [default: "http://127.0.0.1:8500"]
pub url: Option<String>,
}
/// Model of all potential configuration options
pub struct ConfigOpts {
pub base: ConfigOptsBase,
pub acme: ConfigOptsAcme,
pub consul: ConfigOptsConsul,
}
impl ConfigOpts {
pub fn from_env() -> Result<RuntimeConfig> {
let base: ConfigOptsBase = envy::prefixed("DIPLONAT_").from_env()?;
let consul: ConfigOptsConsul = envy::prefixed("DIPLONAT_CONSUL_").from_env()?;
let acme: ConfigOptsAcme = envy::prefixed("DIPLONAT_ACME_").from_env()?;
RuntimeConfig::new(Self {
base: base,
consul: consul,
acme: acme,
})
}
// Currently only used in tests
#[allow(dead_code)]
pub fn from_iter<Iter: Clone>(iter: Iter) -> Result<RuntimeConfig>
where
Iter: IntoIterator<Item = (String, String)>,
{
let base: ConfigOptsBase = envy::prefixed("DIPLONAT_").from_iter(iter.clone())?;
let consul: ConfigOptsConsul = envy::prefixed("DIPLONAT_CONSUL_").from_iter(iter.clone())?;
let acme: ConfigOptsAcme = envy::prefixed("DIPLONAT_ACME_").from_iter(iter.clone())?;
RuntimeConfig::new(Self {
base: base,
consul: consul,
acme: acme,
})
}
}
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