beam-init: add version endpoint

.github/workflows/ci.yml

@@ -28,6 +28,8 @@ jobs:
   test:
     name: Build and test ${{ matrix.label }}
     runs-on: ${{ matrix.runner }}
+    env:
+      GIT_SHA: ${{ github.sha }}
 
     strategy:
       fail-fast: false

.github/workflows/release.yaml

@@ -18,6 +18,8 @@ jobs:
       contents: read
     env:
       VERSION: ${{ github.ref_name }}
+      BEAM_VERSION: ${{ github.ref_name }}
+      GIT_SHA: ${{ github.sha }}
     strategy:
       fail-fast: false
       matrix:

beam-init-api/src/lib.rs

@@ -123,6 +123,15 @@ pub enum ServiceStatus {
     Error(String),
 }
 
+/// Version information for beam-init
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct VersionResponse {
+    /// The version reported by beam-init
+    pub version: String,
+    /// The commit sha beam-init was compiled from
+    pub sha: String,
+}
+
 impl std::fmt::Display for ServiceStatus {
     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
         match self {

beam-init-client/src/blocking.rs

@@ -2,7 +2,7 @@ use std::collections::BTreeMap;
 use std::io::Read;
 use std::path::Path;
 
-use beam_init_api::{CreateService, Service, ServiceStatus};
+use beam_init_api::{CreateService, Service, ServiceStatus, VersionResponse};
 use reqwest::{Method, StatusCode};
 use serde::Serialize;
 use serde::de::DeserializeOwned;
@@ -116,6 +116,10 @@ impl Client {
         self.get_raw(&path)
     }
 
+    pub fn version(&self) -> Result<VersionResponse, Error> {
+        self.get("/version")
+    }
+
     fn request(&self, method: Method, path: &str) -> reqwest::blocking::RequestBuilder {
         debug_assert!(path.starts_with('/'));
         self.client

beam-init/src/api_impl.rs

@@ -16,7 +16,7 @@ use tokio_stream::StreamExt;
 use crate::Event;
 use crate::services::{self, ServiceError, ServiceManager, StartReason};
 use beam_init::system::cerr;
-use beam_init_api::{API_SOCKET_PATH, CreateService, ServiceStatus};
+use beam_init_api::{API_SOCKET_PATH, CreateService, ServiceStatus, VersionResponse};
 
 #[allow(clippy::enum_variant_names)]
 #[derive(Debug)]
@@ -109,6 +109,7 @@ pub fn bind_api_socket(tx_event: mpsc::Sender<Event>) -> io::Result<()> {
         .route("/service/{name}/thaw", post(thaw_service))
         .route("/service/{name}/show", post(show_service))
         .route("/service/{name}/logs", get(service_logs))
+        .route("/version", get(version))
         .with_state(tx_event);
 
     tokio::spawn(async move {
@@ -286,6 +287,14 @@ async fn service_logs(
     rx.await.expect("main task crashed")
 }
 
+async fn version() -> Response {
+    Json(VersionResponse {
+        version: crate::VERSION.to_string(),
+        sha: crate::GIT_SHA.to_string(),
+    })
+    .into_response()
+}
+
 impl From<&crate::services::Service> for beam_init_api::Service {
     fn from(value: &crate::services::Service) -> Self {
         Self {

beam-init/src/bin/beamctl.rs

@@ -7,6 +7,15 @@ use clap_complete::{Shell, generate};
 use beam_init_api::Probe;
 use beam_init_client::blocking::Client;
 
+const VERSION: &str = match option_env!("BEAM_VERSION") {
+    Some(version) => version,
+    None => env!("CARGO_PKG_VERSION"),
+};
+const GIT_SHA: &str = match option_env!("GIT_SHA") {
+    Some(sha) => sha,
+    None => "unknown",
+};
+
 #[cfg(feature = "unstable-pty")]
 mod terminal;
 
@@ -99,6 +108,8 @@ enum Command {
         /// Shell to generate completions for.
         shell: Shell,
     },
+    /// Show the version of beamctl and beam-init
+    Version,
 }
 
 // Defaults are from https://github.com/kubernetes/kubernetes/blob/master/pkg/apis/core/v1/defaults.go.
@@ -270,6 +281,11 @@ fn main() {
 
             generate(shell, &mut command, "beamctl", &mut std::io::stdout());
         }
+        Command::Version => {
+            println!("beamctl: Version: {} - SHA: {}", VERSION, GIT_SHA);
+            let resp = client.version().unwrap_or_else(show_error_and_exit);
+            println!("beam-init: Version: {} - SHA: {}", resp.version, resp.sha);
+        }
     }
 }
 

beam-init/src/main.rs

@@ -18,6 +18,14 @@ mod logs;
 mod services;
 mod signal_stream;
 
+pub(crate) const VERSION: &str = match option_env!("BEAM_VERSION") {
+    Some(version) => version,
+    None => env!("CARGO_PKG_VERSION"),
+};
+pub(crate) const GIT_SHA: &str = match option_env!("GIT_SHA") {
+    Some(sha) => sha,
+    None => "unknown",
+};
 /// If true we will print log messages that may contain sensitive information.
 ///
 /// Set to true using the `BEAM_INIT_ENABLE_DEBUG_LOGS=1` env var.