22 files changed
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -5084,6 +5084,7 @@
"remowt-ui-prompt",
"tokio",
"tracing",
+ "tracing-journald",
"tracing-subscriber",
]
@@ -6576,6 +6577,17 @@
]
[[package]]
+name = "tracing-journald"
+version = "0.3.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2d3a81ed245bfb62592b1e2bc153e77656d94ee6a0497683a65a12ccaf2438d0"
+dependencies = [
+ "libc",
+ "tracing-core",
+ "tracing-subscriber",
+]
+
+[[package]]
name = "tracing-log"
version = "0.2.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -75,6 +75,7 @@
tokio = { version = "1.45.1", features = ["fs", "macros", "rt", "rt-multi-thread", "sync", "time"] }
tracing = "0.1"
tracing-indicatif = "0.3.13"
+tracing-journald = "0.3.2"
tracing-opentelemetry = "0.33.0"
uuid = { version = "1", features = ["v4"] }
# For fixed coloring needs to be updated to https://github.com/tokio-rs/tracing/pull/3484
--- a/cmds/fleet/src/cmds/build_systems.rs
+++ b/cmds/fleet/src/cmds/build_systems.rs
@@ -14,6 +14,8 @@
use tokio::task::spawn_blocking;
use tracing::{Instrument, error, field, info, info_span, warn};
+const TARGET: &str = "build-systems";
+
#[derive(Parser)]
pub struct Deploy {
/// Disable automatic rollback
@@ -32,7 +34,7 @@
}
async fn build_task(config: Config, hostname: String, build_attr: &str) -> Result<Utf8PathBuf> {
- info!("building");
+ info!(target: TARGET, "building");
let host = config.host(&hostname)?;
// let action = Action::from(self.subcommand.clone());
let nixos = host.nixos_config()?;
@@ -43,7 +45,7 @@
// We already have system profiles for backups.
if !host.local {
- info!("adding gc root");
+ info!(target: TARGET, "adding gc root");
let local = config.local_host();
let plugin_id = local.ensure_nix_plugin().await?;
let nix = local
@@ -70,7 +72,7 @@
let build_attr = self.build_attr.clone();
for host in hosts {
let config = config.clone();
- let span = info_span!("build", host = field::display(&host.name));
+ let span = info_span!(target: TARGET, "build", host = field::display(&host.name));
let hostname = host.name;
let build_attr = build_attr.clone();
tasks.push(
@@ -78,7 +80,7 @@
let built = match build_task(config, hostname.clone(), &build_attr).await {
Ok(path) => path,
Err(e) => {
- error!("failed to deploy host: {:?}", e);
+ error!(target: TARGET, "failed to deploy host: {:?}", e);
return;
}
};
@@ -86,9 +88,9 @@
let mut out = current_dir().expect("cwd exists");
out.push(format!("built-{hostname}"));
- info!("linking iso image to {:?}", out);
+ info!(target: TARGET, "linking iso image to {:?}", out);
if let Err(e) = symlink(built, out) {
- error!("failed to symlink: {e}")
+ error!(target: TARGET, "failed to symlink: {e}")
}
})
.instrument(span),
@@ -105,7 +107,7 @@
let tasks = FuturesUnordered::new();
for host in hosts.into_iter() {
let config = config.clone();
- let span = info_span!("deploy", host = field::display(&host.name));
+ let span = info_span!(target: TARGET, "deploy", host = field::display(&host.name));
let hostname = host.name.clone();
let opts = opts.clone();
if let Some(deploy_kind) = opts.action_attr::<DeployKind>(&host, "deploy_kind")? {
@@ -125,7 +127,7 @@
{
Ok(path) => path,
Err(e) => {
- error!("failed to build host system closure: {:?}", e);
+ error!(target: TARGET, "failed to build host system closure: {:?}", e);
return;
}
};
@@ -133,7 +135,7 @@
let deploy_kind = match host.deploy_kind().await {
Ok(v) => v,
Err(e) => {
- error!("failed to query target deploy kind: {e}");
+ error!(target: TARGET, "failed to query target deploy kind: {e}");
return;
}
};
@@ -141,7 +143,7 @@
// TODO: Make disable_rollback a host attribute instead
let mut disable_rollback = self.disable_rollback;
if !disable_rollback && deploy_kind != DeployKind::Fleet {
- warn!("disabling rollback, as not supported by non-fleet deployment kinds");
+ warn!(target: TARGET, "disabling rollback, as not supported by non-fleet deployment kinds");
disable_rollback = true;
}
@@ -149,7 +151,7 @@
match upload_task(&host, GenerationStorage::Deployer, built).await {
Ok(v) => v,
Err(e) => {
- error!("upload failed: {e}");
+ error!(target: TARGET, "upload failed: {e}");
return;
}
};
@@ -169,7 +171,7 @@
)
.await
{
- error!("activation failed: {e}");
+ error!(target: TARGET, "activation failed: {e}");
}
})
.instrument(span),
12345678910use std::{11 fmt::Write as _,12 io::{IsTerminal as _, Write as _},13 sync::{14 Mutex,15 atomic::{AtomicBool, Ordering},16 },17 time::{Duration, Instant},18};1920use tracing::{Event, Level, Subscriber, field::Field, field::Visit, span::Attributes, span::Id};21use tracing_subscriber::{22 fmt::MakeWriter,23 layer::{Context, Layer},24 registry::{LookupSpan, Scope},25};262728const NAME_LIMIT: usize = 18;2930#[derive(Default)]31struct Fields {32 message: String,33 rest: String,34}3536impl Visit for Fields {37 fn record_debug(&mut self, field: &Field, value: &dyn std::fmt::Debug) {38 if field.name() == "message" {39 let _ = write!(self.message, "{value:?}");40 } else {41 let _ = write!(self.rest, " {}={:?}", field.name(), value);42 }43 }44}4546impl Fields {47 fn render(&self) -> String {48 format!("{}{}", self.message, self.rest).trim().to_owned()49 }50}515253struct SpanData {54 fields: String,55 started: Instant,56 57 58 opened: AtomicBool,59}606162fn level_code(level: &Level) -> &'static str {63 match *level {64 Level::ERROR => "31m", 65 Level::WARN => "33m", 66 Level::INFO => "34m", 67 Level::DEBUG => "39m", 68 Level::TRACE => "90m", 69 }70}717273fn gutter(depth: usize, sym: char) -> String {74 let mut s = " ".repeat(depth);75 s.push(sym);76 s77}7879fn fmt_dur(d: Duration) -> String {80 if d.as_secs_f64() >= 1.0 {81 format!("{:.2}s", d.as_secs_f64())82 } else if d.as_millis() >= 1 {83 format!("{}ms", d.as_millis())84 } else {85 format!("{}µs", d.as_micros())86 }87}8889pub struct TreeLayer<W> {90 writer: W,91 color: bool,92 93 94 last: Mutex<Vec<Id>>,95}9697impl<W> TreeLayer<W> {98 pub fn new(writer: W) -> Self {99 Self {100 writer,101 color: std::io::stderr().is_terminal() && std::env::var_os("NO_COLOR").is_none(),102 last: Mutex::new(vec![]),103 }104 }105106 107 fn sgr(&self, code: &str) -> String {108 if self.color {109 format!("\x1b[{code}")110 } else {111 String::new()112 }113 }114115 fn name_col(&self, mut target: &str, code: &str) -> String {116 let w = NAME_LIMIT;117 if target.len() > w {118 target = &target[..w];119 }120 if self.color {121 format!("\x1b[{code}\x1b[1m{target:>w$}\x1b[0m")122 } else {123 format!("{target:>w$}")124 }125 }126127 fn print_ancestors<S>(&self, scope: Option<Scope<'_, S>>, out: &mut String) -> usize128 where129 S: Subscriber + for<'a> LookupSpan<'a>,130 {131 let scope: Vec<_> = scope.map(|s| s.from_root().collect()).unwrap_or_default();132133 let mut _last = self.last.lock().expect("not poisoned");134135 let skip = scope136 .iter()137 .enumerate()138 .take_while(|(i, s)| _last.get(*i) == Some(&s.id()))139 .count();140141 for (depth, span) in scope.iter().enumerate().skip(skip) {142 let ext = span.extensions();143 let Some(data) = ext.get::<SpanData>() else {144 continue;145 };146 let newly_open = !data.opened.swap(true, Ordering::Relaxed);147 let _ = writeln!(148 out,149 "{} {}{}{} {}{}{}",150 self.name_col(span.metadata().target(), "44m"),151 self.sgr("35m"),152 gutter(depth, if newly_open { '>' } else { '.' }),153 self.sgr("1m"),154 span.name(),155 data.fields,156 self.sgr("0m"),157 );158 }159160 *_last = scope.iter().map(|v| v.id()).collect();161162 scope.len()163 }164}165166impl<S, W> Layer<S> for TreeLayer<W>167where168 S: Subscriber + for<'a> LookupSpan<'a>,169 W: for<'a> MakeWriter<'a> + 'static,170{171 fn on_new_span(&self, attrs: &Attributes<'_>, id: &Id, ctx: Context<'_, S>) {172 let span = ctx.span(id).expect("new span exists");173 let mut fields = Fields::default();174 attrs.record(&mut fields);175 span.extensions_mut().insert(SpanData {176 fields: fields.rest,177 started: Instant::now(),178 opened: AtomicBool::new(false),179 });180 }181182 fn on_event(&self, event: &Event<'_>, ctx: Context<'_, S>) {183 let mut out = String::new();184185 let scope = ctx.event_scope(event);186 let pad = self.print_ancestors(scope, &mut out);187188 let mut fields = Fields::default();189 event.record(&mut fields);190 let message = fields.render();191 let meta = event.metadata();192 for (i, message) in message.split('\n').enumerate() {193 194 let _ = writeln!(195 out,196 "{}{}{}{}{}",197 self.sgr("40m"),198 self.name_col(199 if i == 0 { meta.target() } else { "|" },200 level_code(meta.level())201 ),202 self.sgr("0m"),203 gutter(pad, ' '),204 message,205 );206 }207208 let _ = self.writer.make_writer().write_all(out.as_bytes());209 }210211 fn on_close(&self, id: Id, ctx: Context<'_, S>) {212 let Some(span) = ctx.span(&id) else { return };213 let (opened, dur) = span214 .extensions()215 .get::<SpanData>()216 .map_or((false, Duration::ZERO), |d| {217 (d.opened.load(Ordering::Relaxed), d.started.elapsed())218 });219 if !opened {220 return;221 }222223 let mut out = String::new();224 let _pad = self.print_ancestors(ctx.span_scope(&id), &mut out);225226 let depth = span.scope().skip(1).count(); 227 let _ = writeln!(228 out,229 "{} {}{}{} {}{} (Done in {}){}",230 self.name_col(span.metadata().target(), "44m"),231 self.sgr("35m"),232 gutter(depth, '<'),233 self.sgr("1m"),234 span.name(),235 self.sgr("22m"),236 fmt_dur(dur),237 self.sgr("0m"),238 );239240 let _guard = self.last.lock().expect("not poisoned");241 let _ = self.writer.make_writer().write_all(out.as_bytes());242 }243}
--- a/cmds/fleet/src/main.rs
+++ b/cmds/fleet/src/main.rs
@@ -1,6 +1,7 @@
#![recursion_limit = "512"]
pub(crate) mod cmds;
+mod log_tree;
use std::{process::ExitCode, sync::Arc};
@@ -21,6 +22,7 @@
use human_repr::HumanCount;
#[cfg(feature = "indicatif")]
use indicatif::{ProgressState, ProgressStyle};
+use log_tree::TreeLayer;
use nix_eval::{
eval_store, gc_register_my_thread, gc_unregister_my_thread, init_libraries, init_tokio_for_nix,
};
@@ -128,15 +130,21 @@
fn setup_logging(opts: &RootOpts) -> Result<()> {
#[cfg(feature = "indicatif")]
let indicatif_layer = {
+ use std::fmt;
use std::time::Duration;
IndicatifLayer::new().with_max_progress_bars(10, Some(ProgressStyle::default_spinner()))
+ .with_span_child_prefix_indent(" ")
+ .with_span_child_prefix_symbol("")
.with_progress_style(
ProgressStyle::with_template(
- "{color_start}{span_child_prefix} {span_name}{{{span_fields}}}{color_end} {wide_msg} {color_start}{download_progress} {elapsed}{color_end}",
+ "{span_child_prefix:.magenta}{chevron:.magenta}{span_name:<18.blue.bold} {wide_msg} {span_fields:.dim} {color_start}{download_progress} {elapsed}{color_end}",
)
.unwrap()
- .with_key("download_progress", |state: &ProgressState, writer: &mut dyn std::fmt::Write| {
+ .with_key("chevron", |_: &ProgressState, writer: &mut dyn fmt::Write| {
+ let _ = write!(writer, "> ");
+ })
+ .with_key("download_progress", |state: &ProgressState, writer: &mut dyn fmt::Write| {
let Some(len) = state.len() else {
return;
};
@@ -149,7 +157,7 @@
})
.with_key(
"color_start",
- |state: &ProgressState, writer: &mut dyn std::fmt::Write| {
+ |state: &ProgressState, writer: &mut dyn fmt::Write| {
let elapsed = state.elapsed();
if elapsed > Duration::from_secs(60) {
@@ -163,7 +171,7 @@
)
.with_key(
"color_end",
- |state: &ProgressState, writer: &mut dyn std::fmt::Write| {
+ |state: &ProgressState, writer: &mut dyn fmt::Write| {
if state.elapsed() > Duration::from_secs(30) {
let _ = write!(writer, "\x1b[0m");
}
@@ -174,12 +182,15 @@
let filter = EnvFilter::try_from_default_env().unwrap_or_else(|_| EnvFilter::new("info"));
- let reg = tracing_subscriber::registry().with({
- let sub = tracing_subscriber::fmt::layer().without_time();
+ let tree = {
#[cfg(feature = "indicatif")]
- let sub = sub.with_writer(indicatif_layer.get_stderr_writer());
- sub.with_filter(filter) // .without,
- });
+ let writer = indicatif_layer.get_stderr_writer();
+ #[cfg(not(feature = "indicatif"))]
+ let writer = || std::io::stderr();
+ TreeLayer::new(writer)
+ };
+
+ let reg = tracing_subscriber::registry().with(tree.with_filter(filter));
#[cfg(feature = "indicatif")]
let reg = reg.with(indicatif_layer);
@@ -200,14 +211,12 @@
let logger = OpenTelemetryTracingBridge::new(&log_provider);
let tracer = span_provider.tracer("fleet");
- let reg = reg
- .with(tracing_opentelemetry::layer().with_tracer(tracer))
- .with(logger);
-
- reg.init();
+ reg.with(tracing_opentelemetry::layer().with_tracer(tracer))
+ .with(logger)
+ .init();
} else {
reg.init();
- };
+ }
Ok(())
}
@@ -252,7 +261,6 @@
.await
.expect("primary task panicked")
})
- // async_main(opts)
}
async fn main_real(opts: RootOpts) -> Result<()> {
--- a/crates/fleet-base/src/deploy.rs
+++ b/crates/fleet-base/src/deploy.rs
@@ -290,8 +290,10 @@
if !host.local {
info!("uploading system closure");
let mut tries = 0;
+ // TODO: Use gc prefix?..
loop {
- match host.remote_derivation(&generation).await {
+ let name = format!("{}-system", host.gc_root_prefix());
+ match host.remote_derivation(&generation, Some(&name)).await {
Ok(remote) => {
assert!(remote == generation, "CA derivations aren't implemented");
return Ok(remote);
--- a/crates/fleet-base/src/host.rs
+++ b/crates/fleet-base/src/host.rs
@@ -13,16 +13,16 @@
use camino::{Utf8Path, Utf8PathBuf};
use chrono::{DateTime, Utc};
use fleet_shared::SecretData;
-use nix_eval::{Store, Value, drv::DrvGraph, eval_store, nix_go, nix_go_json, util::assert_warn};
+use nix_eval::{Store, Value, eval_store, nix_go, nix_go_json, util::assert_warn};
use remowt_client::{AgentBundle, Remowt};
use remowt_endpoints::fs::FsClient;
use remowt_fleet::NixClient;
-use remowt_link_shared::BifConfig;
+use remowt_link_shared::{Address, BifConfig};
use remowt_ui_prompt::auto::AutoPrompter;
use remowt_ui_prompt::bifrost::PromptEndpoints;
use remowt_ui_prompt::{PrependSourcePrompter, Source};
use tempfile::NamedTempFile;
-use tokio::{sync::OnceCell, task::spawn_blocking};
+use tokio::{process::Command, sync::OnceCell, task::spawn_blocking};
use tracing::{info, instrument, warn};
use crate::fleetdata::{
@@ -104,11 +104,14 @@
session_destination: OnceLock<String>,
legacy_ssh_store: OnceLock<bool>,
+ /// fleetConfiguration.hosts.host, None for local (as local is only used for local tool overrides)
pub host_config: Option<Value>,
pub nixos_config: OnceLock<Value>,
pub nixos_unchecked_config: OnceLock<Value>,
pub pkgs_override: Option<Value>,
+ binary_cache: OnceCell<Option<BinaryCache>>,
+
// TODO: Move command helpers away with connectivity refactor
pub local: bool,
pub remowt: OnceCell<Remowt>,
@@ -131,13 +134,35 @@
AgentBundle::from_dir(agents_dir()?)
}
-enum RemoteDerivationMode {
- /// Closure is (pre)signed, remote host is expected to trust our signatures.
- CopySigned,
- /// Closure is not signed, using escalated nix daemon to bypass signature verification.
- CopyPrivileged,
- /// Closure is uploaded to attic, remote host is expected to trust its signature.
- Attic { name: String },
+#[derive(Clone)]
+pub enum BinaryCache {
+ Attic { name: String, pin: bool },
+}
+impl BinaryCache {
+ async fn upload(&self, local: &Remowt, path: &Utf8Path, pin_name: Option<&str>) -> Result<()> {
+ match self {
+ BinaryCache::Attic { name, pin } => {
+ let mut cmd = local.cmd("attic");
+ cmd.arg("push").arg(name).arg(path.as_str());
+ cmd.run()
+ .await
+ .context("failed to push path to attic (is attic-cli on PATH?)")?;
+
+ if *pin && let Some(pin_name) = pin_name {
+ let mut cmd = local.cmd("attic");
+ cmd.arg("pin")
+ .arg("create")
+ .arg(name)
+ .arg(pin_name)
+ .arg(path.as_str());
+ cmd.run()
+ .await
+ .context("failed to pin path in attic (is your attic-cli compatible?)")?;
+ }
+ Ok(())
+ }
+ }
+ }
}
impl ConfigHost {
@@ -156,6 +181,32 @@
.set(legacy)
.expect("legacy ssh store is already set")
}
+ pub fn binary_cache(&self) -> Result<Option<BinaryCache>> {
+ if let Some(v) = self.binary_cache.get() {
+ return Ok(v.clone());
+ }
+ let cache = if let Some(host_config) = &self.host_config {
+ let cache = nix_go!(host_config.cache);
+ let enable: bool = nix_go_json!(cache.enable);
+ if enable {
+ let kind: String = nix_go_json!(cache.kind);
+ let name: String = nix_go_json!(cache.name);
+ match kind.as_str() {
+ "attic" => {
+ let pin: bool = nix_go_json!(cache.pin);
+ Some(BinaryCache::Attic { name, pin })
+ }
+ v => bail!("unknown binary cache kind: {v}"),
+ }
+ } else {
+ None
+ }
+ } else {
+ None
+ };
+ let _ = self.binary_cache.set(cache.clone());
+ Ok(cache)
+ }
pub async fn deploy_kind(&self) -> Result<DeployKind> {
self.deploy_kind.get_or_try_init(|| async {
let remowt = self.remowt().await?;
@@ -238,8 +289,10 @@
let built = plugin
.build("out")
.context("failed to build the fleet nix plugin")?;
+ let pin = format!("{}-remowt-plugin-fleet", self.gc_root_prefix());
let copied = self
- .remote_derivation(&built)
+ // TODO: Pin? But this pin will be host-specific, and heavy because of nix dependency...
+ .remote_derivation(&built, Some(&pin))
.await
.context("failed to copy the fleet nix plugin to the host store")?;
let bin = copied.join("bin/remowt-plugin-fleet");
@@ -248,6 +301,13 @@
.run0_load_plugin_path(NIX_PLUGIN_ID, bin.as_str())
.await
.context("failed to load the fleet nix plugin")?;
+ // Should not fail, as plugin loading waits for connection on remote, and we only wait for forward... On the other hand, we should monitor connection to the remote itself somewhere too.
+ self.remowt()
+ .await?
+ .rpc()
+ .wait_for_connection_to(Address::Plugin(NIX_PLUGIN_ID))
+ .await
+ .map_err(|_| anyhow!("failed to wait"))?;
anyhow::Ok(())
})
.await?;
@@ -339,17 +399,31 @@
}
/// Returns path for futureproofing, as path might change i.e on conversion to CA
#[instrument(skip(self))]
- pub async fn remote_derivation(&self, path: &Utf8Path) -> Result<Utf8PathBuf> {
+ pub async fn remote_derivation(
+ &self,
+ path: &Utf8Path,
+ pin_name: Option<&str>,
+ ) -> Result<Utf8PathBuf> {
let path = path.to_owned();
if self.local {
// Path is located locally, thus already trusted.
return Ok(path);
}
+ let cache = self.binary_cache()?;
+ let mut cache = if let Some(cache) = cache {
+ let local = self.config.local_host().remowt().await?;
+ let path = path.to_owned();
+ let pin_name = pin_name.map(str::to_owned);
+ Some(tokio::spawn(async move {
+ if let Err(e) = cache.upload(&local, &path, pin_name.as_deref()).await {
+ warn!("failed to upload closure {path} to cache: {e:?}");
+ }
+ }))
+ } else {
+ None
+ };
let sign: Pin<Box<dyn Future<Output = Result<()>> + Send>> = {
let path = path.clone();
- let graph = DrvGraph::resolve(&eval_store(), &path)
- .context("failed to resolve graph to be uploaded")?;
- info!("signing {} paths", graph.nodes.len());
Box::pin(async move {
let local = self.config.local_host();
@@ -377,13 +451,62 @@
.expect("copy_to panicked")
.context("copying closure to remote store")?;
}
+
+ if let Some(cache) = cache.take() {
+ let _ = cache.await;
+ }
+
Ok(path)
}
+
+ /// Like [`Self::remote_derivation`], but instead of copying the closure over
+ /// the nix daemon tunnel, uploads it to an attic binary cache and has the
+ /// remote host substitute it from there. The remote is expected to already
+ /// trust the cache's signing key and have it configured as a substituter.
+ #[instrument(skip(self))]
+ pub async fn remote_derivation_attic(
+ &self,
+ path: &Utf8Path,
+ cache_name: &str,
+ ) -> Result<Utf8PathBuf> {
+ let path = path.to_owned();
+ if self.local {
+ // Path is located locally, thus already trusted.
+ return Ok(path);
+ }
+
+ info!("uploading {path} closure to attic cache {cache_name}");
+ let status = Command::new("attic")
+ .arg("push")
+ .arg(cache_name)
+ .arg(path.as_str())
+ .status()
+ .await
+ .context("failed to spawn attic-cli, is it on PATH?")?;
+ ensure!(status.success(), "attic push failed: {status}");
+
+ info!("substituting {path} on the remote host");
+ let nix = self.nix_client().await?;
+ let substituted = nix
+ .substitute(vec![path.clone()])
+ .await
+ .map_err(|e| anyhow!("{e:?}"))?
+ .map_err(|e| anyhow!("{e}"))?;
+ ensure!(
+ substituted.contains(&path),
+ "remote host failed to substitute {path} from attic cache {cache_name}"
+ );
+ Ok(path)
+ }
}
struct HostSecretDefinition(Value);
impl ConfigHost {
+ pub fn gc_root_prefix(&self) -> String {
+ format!("{}-{}", self.config.gc_root_prefix(), self.name)
+ }
+
// TOCTOU is possible here in case if config is changed, but this case is not handled anywhere anyway,
// assuming getting tags always returns the same value.
pub fn tags(&self) -> Result<Vec<String>> {
@@ -504,6 +627,7 @@
cell
},
pkgs_override: Some(self.default_pkgs.clone()),
+ binary_cache: OnceCell::new(),
local: true,
remowt: OnceCell::new(),
@@ -546,6 +670,7 @@
nixos_unchecked_config: OnceLock::new(),
groups: OnceLock::new(),
pkgs_override: None,
+ binary_cache: OnceCell::new(),
// TODO: Remove with connectivit refactor
local: self.localhost == name,
--- a/crates/fleet-base/src/keys.rs
+++ b/crates/fleet-base/src/keys.rs
@@ -9,6 +9,9 @@
use crate::{fleetdata::SecretOwner, host::Config};
impl Config {
+ pub fn gc_root_prefix(&self) -> String {
+ self.data.gc_root_prefix.clone()
+ }
fn cached_host_key(&self, host: &str) -> Option<String> {
let hosts = self.data.hosts.read().expect("no poisoning");
let key = hosts.get(host).map(|h| &h.encryption_key);
--- a/crates/fleet-base/src/primops.rs
+++ b/crates/fleet-base/src/primops.rs
@@ -119,7 +119,7 @@
.context("failed to build generator for target host")?;
let generator = host_on
- .remote_derivation(&generator)
+ .remote_derivation(&generator, None)
.await
.context("failed to copy generator to target host")?;
--- a/crates/nix-eval/src/lib.rs
+++ b/crates/nix-eval/src/lib.rs
@@ -39,7 +39,7 @@
make_attrs, make_bindings_builder, make_list, make_list_builder, realised_string,
realised_string_free, realised_string_get_buffer_size, realised_string_get_buffer_start,
realised_string_get_store_path, realised_string_get_store_path_count, register_primop,
- set_err_msg, setting_set, state_free, store_copy_closure, store_free, store_open,
+ set_err_msg, setting_get, setting_set, state_free, store_copy_closure, store_free, store_open,
store_parse_path, store_path_free, store_path_name, string_realise, value, value_call,
value_decref, value_force, value_incref,
};
@@ -390,6 +390,14 @@
with_default_context(|c, _| unsafe { setting_set(c, s.as_ptr(), v.as_ptr()) }).map(|_| ())
}
+pub fn get_setting(s: &CStr) -> Result<String> {
+ let mut out = String::new();
+ with_default_context(|c, _| unsafe {
+ setting_get(c, s.as_ptr(), Some(copy_nix_str), (&raw mut out).cast())
+ })?;
+ Ok(out)
+}
+
#[derive(Debug)]
pub struct AddedFile {
pub store_path: Utf8PathBuf,
--- a/crates/nix-eval/src/logging.rs
+++ b/crates/nix-eval/src/logging.rs
@@ -109,6 +109,12 @@
(ActivityType::CopyPaths, []) => {
debug_span!(target: "nix::copy-paths", "copying paths")
}
+ // Umbrella progress activity. Nix emits it at lvlError ("always show"),
+ // which would otherwise become a noisy ERROR `action` span — give it an
+ // explicit debug level like the other container activities.
+ (ActivityType::Builds, []) => {
+ debug_span!(target: "nix::builds", "building")
+ }
(ActivityType::Unknown, [])
if s.starts_with("copying \"") && s.ends_with("\" to the store") =>
{
@@ -365,6 +371,16 @@
BuildGraphGuard { paths }
}
+/// Drop the lazily-created `building` span for a derivation. Used when a build
+/// fails: its dependents will never build, so their speculatively-created spans
+/// (made when a dependency started building) would otherwise linger until the
+/// whole build graph is torn down.
+pub fn remove_drv_span(drv_path: &Utf8Path) {
+ if let Some(entry) = DRV_GRAPH.lock().expect("not poisoned").get_mut(drv_path) {
+ entry.span = None;
+ }
+}
+
fn ensure_drv_span(drv_path: &Utf8Path) -> Option<Span> {
let mut drv_graph = DRV_GRAPH.lock().expect("not poisoned");
@@ -524,7 +540,7 @@
// ResultType::FileLinked => todo!(),
(ResultType::BuildLogLine, [Str(s)]) => {
let s = ansi_filter(s);
- info!("{s}");
+ info!(target: "nix::build", "{s}");
}
// ResultType::UntrustedPath => todo!(),
// ResultType::CorruptedPath => todo!(),
--- a/crates/nix-eval/src/scheduler.rs
+++ b/crates/nix-eval/src/scheduler.rs
@@ -45,9 +45,36 @@
},
}
+// Derivations whose names contain any of these are "heavy": memory-hungry builds that already
+// saturate all cores internally (e.g. composable-kernels), so running anything alongside them
+// just thrashes RAM. A heavy build grabs every semaphore permit and runs exclusively.
+const DEFAULT_HEAVY_DRVS: &[&str] = &[
+ "composable-kernel",
+ "composable_kernel",
+ "ghc",
+ "gfortran",
+ "llvm",
+ "clang",
+];
+
+fn heavy_patterns_from_env() -> Vec<String> {
+ let mut pats: Vec<String> = DEFAULT_HEAVY_DRVS.iter().map(|s| (*s).to_owned()).collect();
+ if let Ok(extra) = std::env::var("FLEET_HEAVY_DRVS") {
+ pats.extend(
+ extra
+ .split(',')
+ .map(str::trim)
+ .filter(|s| !s.is_empty())
+ .map(str::to_owned),
+ );
+ }
+ pats
+}
+
pub struct Scheduler {
store: Arc<Store>,
parallelism: usize,
+ heavy_patterns: Vec<String>,
events: broadcast::Sender<BuildEvent>,
}
@@ -58,10 +85,20 @@
Self {
store: eval_store(),
parallelism,
+ heavy_patterns: heavy_patterns_from_env(),
events,
}
}
+ // Permits a drv must hold to run. Heavy drvs take all of them, pausing everything else.
+ fn permits_for(&self, name: &str) -> u32 {
+ if self.heavy_patterns.iter().any(|p| name.contains(p)) {
+ self.parallelism as u32
+ } else {
+ 1
+ }
+ }
+
pub fn subscribe(&self) -> broadcast::Receiver<BuildEvent> {
self.events.subscribe()
}
@@ -139,6 +176,7 @@
.get(&path)
.map(|n| n.name.clone())
.unwrap_or_default();
+ crate::logging::remove_drv_span(&path);
let _ = self.events.send(BuildEvent::DrvCancelled {
drv_path: path.clone(),
name,
@@ -153,8 +191,21 @@
let graph = graph.clone();
let wanted_here = wanted.get(&path).cloned().unwrap_or_default();
let store = self.store.clone();
+ let permits = graph
+ .nodes
+ .get(&path)
+ .map(|n| self.permits_for(&n.name))
+ .unwrap_or(1);
in_flight.push(tokio::spawn(async move {
- let _permit = sem.acquire_owned().await.expect("semaphore not closed");
+ if permits > 1 {
+ debug!(permits, "heavy drv: waiting for exclusive build slot");
+ }
+ // Heavy drvs acquire every permit, so they only start once all in-flight
+ // builds drain and nothing new can slip in (the semaphore is FIFO-fair).
+ let _permit = sem
+ .acquire_many_owned(permits)
+ .await
+ .expect("semaphore not closed");
let node = graph
.nodes
.get(&path)
@@ -224,6 +275,7 @@
propagate_done(&dependents, &mut indeg, &mut ready, &finished);
}
Err(e) => {
+ crate::logging::remove_drv_span(&finished);
failed.insert(finished.clone(), format!("{e:#}"));
mark_tainted(&dependents, &finished, &mut tainted);
propagate_done(&dependents, &mut indeg, &mut ready, &finished);
@@ -368,11 +420,23 @@
// TODO: Parallelism as a metric works poorly with multiple machines, but I haven't thought about bringing
// hercy here yet. In case of remote machines - they will handle parallelism on their own, and this one
// will work as a hard cap.
+/// Number of derivations to build concurrently, taken from Nix's `max-jobs`
+/// setting. `auto` resolves to the CPU count, matching Nix itself.
+fn max_jobs() -> usize {
+ let cores = || {
+ std::thread::available_parallelism()
+ .map(|p| p.get())
+ .unwrap_or(4)
+ };
+ match crate::get_setting(c"max-jobs") {
+ Ok(v) if v.trim() == "auto" => cores(),
+ Ok(v) => v.trim().parse().unwrap_or_else(|_| cores()),
+ Err(_) => cores(),
+ }
+}
+
pub fn build_graph_sync(graph: Arc<DrvGraph>, root_outputs: Vec<String>) -> Result<()> {
- let parallelism = std::thread::available_parallelism()
- .map(|p| p.get())
- .unwrap_or(4);
- let scheduler = Scheduler::new(parallelism);
+ let scheduler = Scheduler::new(max_jobs());
crate::await_in_nix(async move { scheduler.run(graph, root_outputs).await })
.context("scheduler run")
}
--- a/crates/remowt-fleet/src/lib.rs
+++ b/crates/remowt-fleet/src/lib.rs
@@ -28,6 +28,8 @@
Sign(String),
#[error("listing generations failed: {0}")]
ListGenerations(String),
+ #[error("substitution failed: {0}")]
+ Substitute(String),
}
#[endpoints(ns = 91)]
@@ -60,6 +62,20 @@
.map_err(|e| NixError::Sign(e.to_string()))
}
+ /// Download the given paths (and their closures) into the local store using
+ /// the configured substituters. Used to fetch closures that were uploaded to
+ /// a binary cache (e.g. attic) instead of copied over the nix daemon tunnel.
+ #[endpoints(id = 6)]
+ async fn substitute(&self, paths: Vec<Utf8PathBuf>) -> Result<Vec<Utf8PathBuf>, NixError> {
+ spawn_blocking(move || {
+ let store = eval_store();
+ store.substitute_paths(&paths)
+ })
+ .await
+ .expect("substitution panicked")
+ .map_err(|e| NixError::Substitute(e.to_string()))
+ }
+
#[endpoints(id = 5)]
async fn list_generations(
&self,
--- /dev/null
+++ b/modules/cache.nix
@@ -0,0 +1,61 @@
+{
+ lib,
+ fleetLib,
+ config,
+ ...
+}:
+let
+ inherit (lib.options) mkOption mkEnableOption literalExpression;
+ inherit (lib.types)
+ enum
+ str
+ bool
+ submodule
+ ;
+ inherit (fleetLib.options) mkHostsOption;
+
+ _file = ./cache.nix;
+
+ cacheOptions = {
+ enable = mkEnableOption "fleet binary cache";
+ kind = mkOption {
+ description = ''
+ Kind of the binary cache to use.
+ '';
+ type = enum [ "attic" ];
+ default = "attic";
+ };
+ name = mkOption {
+ description = ''
+ Name of the binary cache.
+ '';
+ type = str;
+ };
+ pin = mkOption {
+ description = ''
+ Whether to pin pushed paths in the attic cache, preventing them from
+ being garbage collected.
+
+ Requires compatible fork of attic server+client: https://github.com/zhaofengli/attic/pull/227#issuecomment-4759154796
+ '';
+ type = bool;
+ default = false;
+ };
+ };
+in
+{
+ options = {
+ cache = cacheOptions;
+ hosts = mkHostsOption {
+ inherit _file;
+ options.cache = mkOption {
+ description = ''
+ Binary cache configuration for this host.
+ '';
+ type = submodule { options = cacheOptions; };
+ default = config.cache;
+ defaultText = literalExpression "fleetConfiguration.cache";
+ };
+ };
+ };
+}
--- a/modules/module-list.nix
+++ b/modules/module-list.nix
@@ -1,5 +1,6 @@
[
./assertions.nix
+ ./cache.nix
./fleetLib.nix
./hosts.nix
./nixos.nix
--- a/pkgs/default.nix
+++ b/pkgs/default.nix
@@ -12,8 +12,6 @@
fleet-generator-helper = callPackage ./fleet-generator-helper.nix { inherit craneLib; };
inherit remowt-agents-bundle;
- remowt-plugin-fleet = callPackage ./remowt-plugin-fleet.nix {
- inherit craneLib inputs remowt-agents-bundle;
- };
+ remowt-plugin-fleet = callPackage ./remowt-plugin-fleet.nix { inherit craneLib inputs; };
remowt-ssh = callPackage ./remowt-ssh.nix { inherit craneLib remowt-agents-bundle; };
}
--- a/remowt/cmds/remowt-agent/src/main.rs
+++ b/remowt/cmds/remowt-agent/src/main.rs
@@ -273,10 +273,11 @@
let helper = SocketHelper {
fallback: SuidHelper,
};
- register_auth_agent(&system_conn, Agent::new(helper, RofiPrompter)).await?;
+ let rofi = RofiPrompter::default();
+ register_auth_agent(&system_conn, Agent::new(helper, rofi.clone())).await?;
let mut rpc = Rpc::<BifConfig>::new(Address::User);
- serve_prompts(&mut rpc, RofiPrompter);
+ serve_prompts(&mut rpc, rofi);
gateway::serve(rpc.clone(), &gateway::local_socket()?).await?;
--- a/remowt/cmds/remowt-ssh/Cargo.toml
+++ b/remowt/cmds/remowt-ssh/Cargo.toml
@@ -8,6 +8,7 @@
[dependencies]
clap = { workspace = true, features = ["derive"] }
tracing-subscriber.workspace = true
+tracing-journald.workspace = true
remowt-link-shared.workspace = true
remowt-client.workspace = true
tokio = { workspace = true, features = [
--- a/remowt/cmds/remowt-ssh/src/main.rs
+++ b/remowt/cmds/remowt-ssh/src/main.rs
@@ -20,6 +20,8 @@
use tokio::io::{AsyncRead, ReadBuf};
use tokio::signal::unix::{signal, SignalKind};
use tracing::debug;
+use tracing_subscriber::prelude::*;
+use tracing_subscriber::EnvFilter;
#[derive(Parser)]
enum Opts {
@@ -45,10 +47,16 @@
#[tokio::main(flavor = "current_thread")]
async fn main() -> anyhow::Result<()> {
- tracing_subscriber::fmt()
- .with_writer(std::io::stderr)
- .without_time()
- .init();
+ // Log to the journal, not stderr: this is an interactive client that puts
+ // the terminal in raw mode, so anything on stderr corrupts the session
+ // output. If the journal socket is unavailable, drop logs rather than fall
+ // back to stderr.
+ if let Ok(journald) = tracing_journald::layer() {
+ tracing_subscriber::registry()
+ .with(EnvFilter::from_default_env())
+ .with(journald.with_syslog_identifier("remowt-ssh".to_owned()))
+ .init();
+ }
let opts = Opts::parse();
let bundle = AgentBundle::from_dir(agents_dir()?)?;
--- a/remowt/crates/remowt-ui-prompt/Cargo.toml
+++ b/remowt/crates/remowt-ui-prompt/Cargo.toml
@@ -12,5 +12,5 @@
remowt-link-shared.workspace = true
serde.workspace = true
thiserror.workspace = true
-tokio = { workspace = true, features = ["io-util", "macros", "process", "rt"] }
+tokio = { workspace = true, features = ["io-util", "macros", "process", "rt", "sync"] }
tracing.workspace = true
--- a/remowt/crates/remowt-ui-prompt/src/auto.rs
+++ b/remowt/crates/remowt-ui-prompt/src/auto.rs
@@ -24,7 +24,7 @@
};
Self {
remote,
- fallback: RofiPrompter,
+ fallback: RofiPrompter::default(),
}
}
--- a/remowt/crates/remowt-ui-prompt/src/rofi.rs
+++ b/remowt/crates/remowt-ui-prompt/src/rofi.rs
@@ -1,13 +1,18 @@
use std::process::Stdio;
+use std::sync::Arc;
use tokio::io::AsyncWriteExt;
use tokio::process::Command;
+use tokio::sync::Mutex;
use tracing::trace;
use crate::{Error, Prompter, Result, Source};
-#[derive(Clone)]
-pub struct RofiPrompter;
+#[derive(Clone, Default)]
+pub struct RofiPrompter {
+ // Rofi can't run concurrently; serialize invocations.
+ lock: Arc<Mutex<()>>,
+}
fn fixup_prompt(prompt: &str) -> &str {
// Rofi always appends such suffix
@@ -27,6 +32,7 @@
source: &[Source],
) -> Result<u32> {
trace!("rofi radio");
+ let _guard = self.lock.lock().await;
let mut cmd = rofi_command();
let mesg = if source.is_empty() {
description.to_owned()
@@ -113,6 +119,7 @@
source: &[Source],
) -> Result<String> {
trace!("rofi text");
+ let _guard = self.lock.lock().await;
let mut cmd = rofi_command();
let mesg = if source.is_empty() {
description.to_owned()
@@ -162,6 +169,7 @@
async fn display_text(&self, error: bool, description: &str, source: &[Source]) -> Result<()> {
trace!("rofi display");
+ let _guard = self.lock.lock().await;
let mut cmd = rofi_command();
let mut mesg = if source.is_empty() {
description.to_owned()
@@ -206,7 +214,7 @@
#[ignore = "interactive"]
async fn test() {
let prompter = PrependSourcePrompter {
- prompter: RofiPrompter,
+ prompter: RofiPrompter::default(),
description: "test".to_owned(),
source: vec![Source(Cow::Borrowed("ssh"))],
};