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feat(config): integrate etcd for service discovery and config management

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- Add etcd-client dependency for distributed configuration storage
- Implement EtcdConfig with priority: etcd > environment variables > defaults
- Add ServiceRegistry for service registration with lease keep-alive
- Integrate etcd-based service discovery for appks gRPC connections
- Add service watcher for real-time service instance updates
- Migrate Redis configuration from single URL to cluster node list
- Update Dockerfile with default IMKS_HOST and IMKS_PORT environment variables
- Add etcd bootstrap configuration through environment variables
- Implement Redis cluster URL building with optional authentication
This commit is contained in:
zhenyi
2026-06-11 22:50:38 +08:00
parent e72866db8d
commit c794b818ff
24 changed files with 984 additions and 952 deletions
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svc/deploy.rs
+128 -5
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@@ -10,6 +10,10 @@ use std::env;
pub struct DeployConfig {
/// "local" | "redis" | "nats"
pub adapter_mode: String,
/// Redis URL for single-node Redis, e.g. `redis://localhost:6379`.
pub redis_url: Option<String>,
/// Whether Redis cluster mode is enabled.
pub redis_cluster_enabled: bool,
/// Redis cluster nodes, comma-separated host:port pairs.
/// Example: "redis1:6379,redis2:6379,redis3:6379"
pub redis_cluster_nodes: String,
@@ -35,9 +39,19 @@ impl DeployConfig {
Self {
adapter_mode: env::var("IMKS_ADAPTER").unwrap_or_else(|_| "local".into()),
redis_url: env::var("IMKS_REDIS_URL")
.ok()
.or_else(|| env::var("APP_REDIS_URL").ok())
.filter(|v| !v.trim().is_empty()),
redis_cluster_enabled: env_bool("IMKS_REDIS_CLUSTER_ENABLED")
.or_else(|| env_bool("APP_REDIS_CLUSTER_ENABLED"))
.unwrap_or(false),
redis_cluster_nodes: env::var("IMKS_REDIS_CLUSTER_NODES")
.unwrap_or_else(|_| "localhost:6379,localhost:6380,localhost:6381".into()),
redis_password: env::var("IMKS_REDIS_PASSWORD").unwrap_or_default(),
.or_else(|_| env::var("APP_REDIS_CLUSTER_NODES"))
.unwrap_or_default(),
redis_password: env::var("IMKS_REDIS_PASSWORD")
.or_else(|_| env::var("APP_REDIS_PASSWORD"))
.unwrap_or_default(),
nats_url: env::var("IMKS_NATS_URL").unwrap_or_else(|_| "nats://localhost:4222".into()),
server_id,
webtransport_enabled: env::var("IMKS_WT_ENABLED")
@@ -52,15 +66,56 @@ impl DeployConfig {
}
}
/// Build a redis-rs compatible Redis URL.
///
/// This mirrors appks:
/// - cluster disabled: require `IMKS_REDIS_URL` or `APP_REDIS_URL`
/// - cluster enabled: require `IMKS_REDIS_CLUSTER_NODES` or `APP_REDIS_CLUSTER_NODES`
pub fn redis_url(&self) -> Result<String, String> {
if self.redis_cluster_enabled {
return self.redis_cluster_url();
}
self.redis_url.clone().ok_or_else(|| {
"Redis cluster disabled but IMKS_REDIS_URL/APP_REDIS_URL is not set".into()
})
}
/// Build a redis-cluster URL from cluster_nodes and optional password.
/// Format: redis-cluster://[:password@]host1:port1,host2:port2,...
pub fn redis_cluster_url(&self) -> String {
///
/// Produces a redis-rs compatible URL in the format:
/// `redis-cluster://[password@]host1:port1?node=host2:port2&node=host3:port3`
///
/// The first node becomes the URL authority host:port; additional nodes
/// are appended as `node` query parameters.
pub fn redis_cluster_url(&self) -> Result<String, String> {
let auth = if self.redis_password.is_empty() {
String::new()
} else {
format!(":{}@", self.redis_password)
};
format!("redis-cluster://{}{}", auth, self.redis_cluster_nodes)
let nodes: Vec<String> = self
.redis_cluster_nodes
.split(',')
.map(normalize_redis_cluster_node)
.filter(|s| !s.is_empty())
.collect();
if nodes.is_empty() {
return Err("Redis cluster enabled but IMKS_REDIS_CLUSTER_NODES/APP_REDIS_CLUSTER_NODES is empty".into());
}
if nodes.len() == 1 {
return Ok(format!("redis-cluster://{}{}", auth, nodes[0]));
}
let mut url = format!("redis-cluster://{}{}", auth, nodes[0]);
for (i, node) in nodes.iter().skip(1).enumerate() {
url.push(if i == 0 { '?' } else { '&' });
url.push_str(&format!("node={}", node));
}
Ok(url)
}
}
@@ -70,8 +125,76 @@ impl Default for DeployConfig {
}
}
fn env_bool(key: &str) -> Option<bool> {
env::var(key).ok().map(|v| v == "true" || v == "1")
}
fn normalize_redis_cluster_node(node: &str) -> String {
let trimmed = node.trim();
let without_scheme = trimmed
.strip_prefix("redis://")
.or_else(|| trimmed.strip_prefix("rediss://"))
.unwrap_or(trimmed);
let without_auth = without_scheme
.rsplit_once('@')
.map(|(_, host)| host)
.unwrap_or(without_scheme);
without_auth
.split('/')
.next()
.unwrap_or_default()
.to_string()
}
fn hostname() -> String {
env::var("HOSTNAME")
.or_else(|_| env::var("HOST"))
.unwrap_or_else(|_| "imks-node-1".into())
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn normalize_cluster_nodes_accepts_appks_style_urls() {
assert_eq!(
normalize_redis_cluster_node("redis://127.0.0.1:6380"),
"127.0.0.1:6380"
);
assert_eq!(
normalize_redis_cluster_node("rediss://127.0.0.1:6381/0"),
"127.0.0.1:6381"
);
assert_eq!(
normalize_redis_cluster_node("redis://:secret@127.0.0.1:6382"),
"127.0.0.1:6382"
);
assert_eq!(
normalize_redis_cluster_node("127.0.0.1:6383"),
"127.0.0.1:6383"
);
}
#[test]
fn redis_cluster_url_normalizes_nodes() {
let config = DeployConfig {
adapter_mode: "redis".into(),
redis_url: None,
redis_cluster_enabled: true,
redis_cluster_nodes: "redis://127.0.0.1:6380,redis://127.0.0.1:6381".into(),
redis_password: String::new(),
nats_url: "nats://localhost:4222".into(),
server_id: "test".into(),
webtransport_enabled: false,
webtransport_port: 3001,
cert_path: String::new(),
key_path: String::new(),
};
assert_eq!(
config.redis_cluster_url().unwrap(),
"redis-cluster://127.0.0.1:6380?node=127.0.0.1:6381"
);
}
}