57 lines
2.0 KiB
Rust
57 lines
2.0 KiB
Rust
use std::env;
|
|
use anyhow::{Result, Context, anyhow};
|
|
use std::time::Duration;
|
|
use log::*;
|
|
|
|
const epi: &'static str = "DIPLONAT_PRIVATE_IP";
|
|
const ert: &'static str = "DIPLONAT_REFRESH_TIME";
|
|
const eet: &'static str = "DIPLONAT_EXPIRATION_TIME";
|
|
const ecnd: &'static str = "DIPLONAT_CONSUL_NODE_NAME";
|
|
const ecu: &'static str = "DIPLONAT_CONSUL_URL";
|
|
|
|
pub struct Environment {
|
|
pub consul_node_name: String,
|
|
pub consul_url: String,
|
|
|
|
pub refresh_time: Duration,
|
|
pub expiration_time: Duration,
|
|
|
|
pub private_ip: String,
|
|
}
|
|
|
|
/* @FIXME: Rewrite with Serde Envi */
|
|
impl Environment {
|
|
pub fn new() -> Result<Self> {
|
|
let ctx = Self {
|
|
consul_url: match env::var(ecu) { Ok(e) => e, Err(_) => "http://127.0.0.1:8500".to_string() },
|
|
consul_node_name: env::var(ecnd).with_context(|| format!("{} env var must be defined", ecnd))?,
|
|
private_ip: env::var(epi).with_context(|| format!("{} env var must be defined, eg: 192.168.0.18", epi))?,
|
|
refresh_time: Duration::from_secs(env::var(ert)
|
|
.with_context(|| format!("{} env var must be defined, eg: 60", ert))?
|
|
.parse()
|
|
.with_context(|| format!("{} env var must be an integer, eg: 60", ert))?),
|
|
expiration_time: Duration::from_secs(env::var(eet)
|
|
.with_context(|| format!("{} env var must be defined, eg: 300", eet))?
|
|
.parse()
|
|
.with_context(|| format!("{} env var must be an integer, eg: 300", eet))?),
|
|
};
|
|
|
|
if ctx.refresh_time.as_secs() * 2 > ctx.expiration_time.as_secs() {
|
|
return Err(anyhow!(
|
|
"Expiration time (currently: {}s) must be twice bigger than refresh time (currently: {}s)",
|
|
ctx.refresh_time.as_secs(),
|
|
ctx.expiration_time.as_secs()));
|
|
}
|
|
|
|
info!("Consul URL: {:#?}", ctx.consul_url);
|
|
info!("Consul node name: {:#?}", ctx.consul_node_name);
|
|
info!("Private IP address: {:#?}", ctx.private_ip);
|
|
info!("Refresh time: {:#?} seconds", ctx.refresh_time.as_secs());
|
|
info!("Expiration time: {:#?} seconds", ctx.expiration_time.as_secs());
|
|
|
|
return Ok(ctx);
|
|
}
|
|
}
|
|
|
|
|