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use std::sync::LazyLock;
use anyhow::Result;
use confique::Config;
use opentelemetry_otlp::Protocol;
use crate::s_log::*;
#[derive(Config)]
pub struct CspyConfig {
#[config(env = "CSPY_DOCKER_SOCKET")]
pub docker_socket: Option<String>,
#[config(env = "CSPY_OTLP_PROTO", default = "httpbinary", deserialize_with = crate::config::deser_protocol)]
pub otlp_protocol: Protocol,
#[config(env = "CSPY_OTLP_ENDPOINT")]
pub otlp_endpoint: Option<String>,
#[config(env = "CSPY_OTLP_INTERVAL")]
pub otlp_export_interval: Option<u64>,
}
pub static CONFIG: LazyLock<CspyConfig> = LazyLock::new(|| {
let cfg_loc = std::env::var("CSPY_CONFIG");
let cfg_loc = cfg_loc
.as_deref()
.ok()
.unwrap_or("/etc/containerspy/config.json");
let cfg = CspyConfig::builder().env().file(cfg_loc).load().unwrap();
info("Loaded config at startup", [
("docker_socket", &*format!("{:?}", cfg.docker_socket)),
("otlp_protocol", &*format!("{:?}", cfg.otlp_protocol)),
("otlp_endpoint", &*format!("{:?}", cfg.otlp_endpoint)),
("otlp_export_interval", &*format!("{:?}", cfg.otlp_export_interval)),
]);
cfg
});
/// deserialization boilerplate
struct ProtoDeserVisitor;
/// deserialization boilerplate
impl confique::serde::de::Visitor<'_> for ProtoDeserVisitor {
type Value = Protocol;
fn expecting(&self, formatter: &mut std::fmt::Formatter) -> std::fmt::Result {
formatter.write_str(r#""httpbinary", "httpjson", or "grpc"."#)
}
fn visit_str<E>(self, v: &str) -> std::result::Result<Self::Value, E>
where
E: confique::serde::de::Error,
{
Ok(match v {
"httpbinary" => Protocol::HttpBinary,
"httpjson" => Protocol::HttpJson,
"grpc" => Protocol::Grpc,
&_ => {
return Err(E::custom(format!(
"{v} is not a valid OTLP protocol, valid options are httpbinary, httpjson, or grpc."
)))
}
})
}
}
/// deserialization boilerplate
fn deser_protocol<'de, D: confique::serde::Deserializer<'de>>(d: D) -> Result<Protocol, D::Error> {
d.deserialize_str(ProtoDeserVisitor)
}
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