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use std::sync::LazyLock;
use anyhow::Result;
use confique::Config;
use opentelemetry_otlp::Protocol;
#[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");
CspyConfig::builder()
.env()
.file(cfg_loc)
.load()
.unwrap()
});
/// deserialization boilerplate
struct ProtoDeserVisitor;
/// deserialization boilerplate
impl<'de> confique::serde::de::Visitor<'de> 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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