summaryrefslogtreecommitdiff
path: root/src/ci_driver.rs
diff options
context:
space:
mode:
Diffstat (limited to 'src/ci_driver.rs')
-rw-r--r--src/ci_driver.rs630
1 files changed, 0 insertions, 630 deletions
diff --git a/src/ci_driver.rs b/src/ci_driver.rs
deleted file mode 100644
index f6c1828..0000000
--- a/src/ci_driver.rs
+++ /dev/null
@@ -1,630 +0,0 @@
-use std::process::Command;
-use std::collections::HashMap;
-use std::sync::{Mutex, RwLock};
-use lazy_static::lazy_static;
-use std::io::Read;
-use serde_derive::{Deserialize, Serialize};
-use futures_util::StreamExt;
-use std::fmt;
-use std::path::{Path, PathBuf};
-use tokio::spawn;
-use tokio_stream::wrappers::ReceiverStream;
-use std::sync::{Arc, Weak};
-use std::time::{SystemTime, UNIX_EPOCH};
-use axum_server::tls_rustls::RustlsConfig;
-use axum::body::StreamBody;
-use axum::http::{StatusCode};
-use hyper::HeaderMap;
-use axum::Router;
-use axum::routing::*;
-use axum::extract::State;
-use axum::extract::BodyStream;
-use axum::response::IntoResponse;
-use tokio::sync::mpsc;
-use tokio::sync::mpsc::error::TrySendError;
-use serde_json::json;
-
-mod dbctx;
-mod sql;
-mod notifier;
-mod io;
-mod protocol;
-
-use crate::dbctx::{DbCtx, PendingRun, Job, Run};
-use crate::sql::JobResult;
-use crate::sql::RunState;
-use crate::protocol::{ClientProto, CommandInfo, TaskInfo, RequestedJob};
-
-lazy_static! {
- static ref AUTH_SECRET: RwLock<Option<String>> = RwLock::new(None);
- static ref ACTIVE_TASKS: Mutex<HashMap<u64, Weak<()>>> = Mutex::new(HashMap::new());
-}
-
-fn reserve_artifacts_dir(run: u64) -> std::io::Result<PathBuf> {
- let mut path: PathBuf = "/root/ixi_ci_server/artifacts/".into();
- path.push(run.to_string());
- match std::fs::create_dir(&path) {
- Ok(()) => {
- Ok(path)
- },
- Err(e) => {
- if e.kind() == std::io::ErrorKind::AlreadyExists {
- Ok(path)
- } else {
- Err(e)
- }
- }
- }
-}
-
-async fn activate_run(dbctx: Arc<DbCtx>, candidate: RunnerClient, job: &Job, run: &PendingRun) -> Result<(), String> {
- eprintln!("activating task {:?}", run);
-
- let now = SystemTime::now()
- .duration_since(UNIX_EPOCH)
- .expect("now is before epoch")
- .as_millis();
-
- let remote = dbctx.remote_by_id(job.remote_id).expect("query succeeds").expect("job has remote");
- let repo = dbctx.repo_by_id(remote.repo_id).expect("query succeeds").expect("remote has repo");
-
- let commit_sha = dbctx.commit_sha(job.commit_id).expect("query succeeds");
-
- let artifacts: PathBuf = reserve_artifacts_dir(run.id).expect("can reserve a directory for artifacts");
-
- eprintln!("running {}", &repo.name);
-
- let res = candidate.submit(&dbctx, &run, &remote.remote_git_url, &commit_sha).await;
-
- let mut client_job = match res {
- Ok(Some(mut client_job)) => { client_job }
- Ok(None) => {
- return Err("client hung up instead of acking task".to_string());
- }
- Err(e) => {
- // failed to submit job, move on for now
- return Err(format!("failed to submit task: {:?}", e));
- }
- };
-
- let host_id = client_job.client.host_id;
-
- let connection = dbctx.conn.lock().unwrap();
- connection.execute(
- "update runs set started_time=?1, host_id=?2, state=1, artifacts_path=?3, build_token=?4 where id=?5",
- (now as u64, host_id, format!("{}", artifacts.display()), &client_job.client.build_token, run.id)
- )
- .expect("can update");
- std::mem::drop(connection);
-
- spawn(async move {
- client_job.run().await
- });
-
- Ok(())
-}
-
-struct RunnerClient {
- tx: mpsc::Sender<Result<String, String>>,
- rx: BodyStream,
- host_id: u32,
- build_token: String,
- accepted_sources: Option<Vec<String>>,
-}
-
-fn token_for_job() -> String {
- let mut data = [0u8; 32];
- std::fs::File::open("/dev/urandom")
- .unwrap()
- .read_exact(&mut data)
- .unwrap();
-
- base64::encode(data)
-}
-
-struct ClientJob {
- dbctx: Arc<DbCtx>,
- remote_git_url: String,
- sha: String,
- task: PendingRun,
- client: RunnerClient,
- // exists only as confirmation this `ClientJob` is somewhere, still alive and being processed.
- task_witness: Arc<()>,
-}
-
-impl ClientJob {
- pub async fn run(&mut self) {
- loop {
- eprintln!("waiting on response..");
- let msg = match self.client.recv_typed::<ClientProto>().await.expect("recv works") {
- Some(msg) => msg,
- None => {
- eprintln!("client hung up. task's done, i hope?");
- return;
- }
- };
- eprintln!("got {:?}", msg);
- match msg {
- ClientProto::NewTaskPlease { allowed_pushers, host_info } => {
- eprintln!("misdirected task request (after handshake?)");
- return;
- }
- ClientProto::TaskStatus(task_info) => {
- let (result, state): (Result<String, String>, RunState) = match task_info {
- TaskInfo::Finished { status } => {
- eprintln!("task update: state is finished and result is {}", status);
- match status.as_str() {
- "pass" => {
- (Ok("success".to_string()), RunState::Finished)
- },
- other => {
- eprintln!("unhandled task completion status: {}", other);
- (Err(other.to_string()), RunState::Error)
- }
- }
- },
- TaskInfo::Interrupted { status, description } => {
- eprintln!("task update: state is interrupted and result is {}", status);
- let desc = description.unwrap_or_else(|| status.clone());
- (Err(desc), RunState::Error)
- }
- };
-
- let job = self.dbctx.job_by_id(self.task.job_id).expect("can query").expect("job exists");
- let repo_id = self.dbctx.repo_id_by_remote(job.remote_id).unwrap().expect("remote exists");
-
- for notifier in self.dbctx.notifiers_by_repo(repo_id).expect("can get notifiers") {
- if let Err(e) = notifier.tell_complete_job(&self.dbctx, repo_id, &self.sha, self.task.id, result.clone()).await {
- eprintln!("could not notify {:?}: {:?}", notifier.remote_path, e);
- }
- }
-
- let now = SystemTime::now()
- .duration_since(UNIX_EPOCH)
- .expect("now is before epoch")
- .as_millis();
-
- let build_result = if result.is_ok() {
- JobResult::Pass
- } else {
- JobResult::Fail
- };
- let result_desc = match result {
- Ok(msg) => msg,
- Err(msg) => msg,
- };
-
- self.dbctx.conn.lock().unwrap().execute(
- "update runs set complete_time=?1, state=?2, build_result=?3, final_status=?4 where id=?5",
- (now as u64, state as u64, build_result as u8, result_desc, self.task.id)
- )
- .expect("can update");
- }
- ClientProto::ArtifactCreate => {
- eprintln!("creating artifact");
- self.client.send(serde_json::json!({
- "status": "ok",
- "object_id": "10",
- })).await.unwrap();
- },
- ClientProto::Metric { name, value } => {
- self.dbctx.insert_metric(self.task.id, &name, &value)
- .expect("TODO handle metric insert error?");
- }
- ClientProto::Command(_command_info) => {
- // record information about commands, start/stop, etc. probably also allow
- // artifacts to be attached to commands and default to attaching stdout/stderr?
- }
- other => {
- eprintln!("unhandled message {:?}", other);
- }
- }
- }
- }
-}
-
-impl RunnerClient {
- async fn new(sender: mpsc::Sender<Result<String, String>>, resp: BodyStream, accepted_sources: Option<Vec<String>>, host_id: u32) -> Result<Self, String> {
- let token = token_for_job();
- let client = RunnerClient {
- tx: sender,
- rx: resp,
- host_id,
- build_token: token,
- accepted_sources,
- };
- Ok(client)
- }
-
- async fn test_connection(&mut self) -> Result<(), String> {
- self.send_typed(&ClientProto::Ping).await?;
- let resp = self.recv_typed::<ClientProto>().await?;
- match resp {
- Some(ClientProto::Pong) => {
- Ok(())
- }
- Some(other) => {
- Err(format!("unexpected connection test response: {:?}", other))
- }
- None => {
- Err("client hung up".to_string())
- }
- }
- }
-
- async fn send(&mut self, msg: serde_json::Value) -> Result<(), String> {
- self.send_typed(&msg).await
- }
-
- async fn send_typed<T: serde::Serialize>(&mut self, msg: &T) -> Result<(), String> {
- self.tx.send(Ok(serde_json::to_string(msg).unwrap()))
- .await
- .map_err(|e| e.to_string())
- }
-
- async fn recv(&mut self) -> Result<Option<serde_json::Value>, String> {
- match self.rx.next().await {
- Some(Ok(bytes)) => {
- serde_json::from_slice(&bytes)
- .map(Option::Some)
- .map_err(|e| e.to_string())
- },
- Some(Err(e)) => {
- eprintln!("e: {:?}", e);
- Err(format!("no client job: {:?}", e))
- },
- None => {
- Ok(None)
- }
- }
- }
-
- async fn recv_typed<T: serde::de::DeserializeOwned>(&mut self) -> Result<Option<T>, String> {
- let json = self.recv().await?;
- Ok(json.map(|v| serde_json::from_value(v).unwrap()))
- }
-
- // is this client willing to run the job based on what it has told us so far?
- fn will_accept(&self, job: &Job) -> bool {
- match (job.source.as_ref(), self.accepted_sources.as_ref()) {
- (_, None) => true,
- (None, Some(_)) => false,
- (Some(source), Some(accepted_sources)) => {
- accepted_sources.contains(source)
- }
- }
- }
-
- async fn submit(mut self, dbctx: &Arc<DbCtx>, job: &PendingRun, remote_git_url: &str, sha: &str) -> Result<Option<ClientJob>, String> {
- self.send_typed(&ClientProto::new_task(RequestedJob {
- commit: sha.to_string(),
- remote_url: remote_git_url.to_string(),
- build_token: self.build_token.to_string(),
- })).await?;
- match self.recv_typed::<ClientProto>().await {
- Ok(Some(ClientProto::Started)) => {
- let task_witness = Arc::new(());
- ACTIVE_TASKS.lock().unwrap().insert(job.id, Arc::downgrade(&task_witness));
- Ok(Some(ClientJob {
- task: job.clone(),
- dbctx: Arc::clone(dbctx),
- sha: sha.to_string(),
- remote_git_url: remote_git_url.to_string(),
- client: self,
- task_witness,
- }))
- }
- Ok(Some(resp)) => {
- eprintln!("invalid response: {:?}", resp);
- Err("client rejected job".to_string())
- }
- Ok(None) => {
- Ok(None)
- }
- Err(e) => {
- eprintln!("e: {:?}", e);
- Err(e)
- }
- }
- }
-}
-
-impl fmt::Debug for RunnerClient {
- fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
- f.write_str("RunnerClient { .. }")
- }
-}
-
-#[axum_macros::debug_handler]
-async fn handle_artifact(State(ctx): State<(Arc<DbCtx>, mpsc::Sender<RunnerClient>)>, headers: HeaderMap, artifact_content: BodyStream) -> impl IntoResponse {
- eprintln!("artifact request");
- let run_token = match headers.get("x-task-token") {
- Some(run_token) => run_token.to_str().expect("valid string"),
- None => {
- eprintln!("bad artifact post: headers: {:?}\nno x-tasak-token", headers);
- return (StatusCode::BAD_REQUEST, "").into_response();
- }
- };
-
- let (run, artifact_path, token_validity) = match ctx.0.run_for_token(&run_token).unwrap() {
- Some(result) => result,
- None => {
- eprintln!("bad artifact post: headers: {:?}\nrun token is not known", headers);
- return (StatusCode::BAD_REQUEST, "").into_response();
- }
- };
-
- if token_validity != dbctx::TokenValidity::Valid {
- eprintln!("bad artifact post: headers: {:?}. token is not valid: {:?}", headers, token_validity);
- return (StatusCode::BAD_REQUEST, "").into_response();
- }
-
- let artifact_path = if let Some(artifact_path) = artifact_path {
- artifact_path
- } else {
- eprintln!("bad artifact post: headers: {:?}. no artifact path?", headers);
- return (StatusCode::BAD_REQUEST, "").into_response();
- };
-
- let artifact_name = match headers.get("x-artifact-name") {
- Some(artifact_name) => artifact_name.to_str().expect("valid string"),
- None => {
- eprintln!("bad artifact post: headers: {:?}\nno x-artifact-name", headers);
- return (StatusCode::BAD_REQUEST, "").into_response();
- }
- };
-
- let artifact_desc = match headers.get("x-artifact-desc") {
- Some(artifact_desc) => artifact_desc.to_str().expect("valid string"),
- None => {
- eprintln!("bad artifact post: headers: {:?}\nno x-artifact-desc", headers);
- return (StatusCode::BAD_REQUEST, "").into_response();
- }
- };
-
- let mut artifact = match ctx.0.reserve_artifact(run, artifact_name, artifact_desc).await {
- Ok(artifact) => artifact,
- Err(err) => {
- eprintln!("failure to reserve artifact: {:?}", err);
- return (StatusCode::INTERNAL_SERVER_ERROR, "").into_response();
- }
- };
-
- eprintln!("spawning task...");
- let dbctx_ref = Arc::clone(&ctx.0);
- spawn(async move {
- artifact.store_all(artifact_content).await.unwrap();
- dbctx_ref.finalize_artifact(artifact.artifact_id).await.unwrap();
- });
- eprintln!("done?");
-
- (StatusCode::OK, "").into_response()
-}
-
-#[derive(Serialize, Deserialize)]
-struct WorkRequest {
- kind: String,
- accepted_pushers: Option<Vec<String>>
-}
-
-async fn handle_next_job(State(ctx): State<(Arc<DbCtx>, mpsc::Sender<RunnerClient>)>, headers: HeaderMap, mut job_resp: BodyStream) -> impl IntoResponse {
- let auth_token = match headers.get("authorization") {
- Some(token) => {
- if Some(token.to_str().unwrap_or("")) != AUTH_SECRET.read().unwrap().as_ref().map(|x| &**x) {
- eprintln!("BAD AUTH SECRET SUBMITTED: {:?}", token);
- return (StatusCode::BAD_REQUEST, "").into_response();
- }
- }
- None => {
- eprintln!("bad artifact post: headers: {:?}\nno authorization", headers);
- return (StatusCode::BAD_REQUEST, "").into_response();
- }
- };
-
- let (tx_sender, tx_receiver) = mpsc::channel(8);
- let resp_body = StreamBody::new(ReceiverStream::new(tx_receiver));
- tx_sender.send(Ok("hello".to_string())).await.expect("works");
-
- let request = job_resp.next().await.expect("request chunk").expect("chunk exists");
- let request = std::str::from_utf8(&request).unwrap();
- let request: ClientProto = match serde_json::from_str(&request) {
- Ok(v) => v,
- Err(e) => {
- eprintln!("couldn't parse work request: {:?}", e);
- return (StatusCode::MISDIRECTED_REQUEST, resp_body).into_response();
- }
- };
- let (accepted_pushers, host_info) = match request {
- ClientProto::NewTaskPlease { allowed_pushers, host_info } => (allowed_pushers, host_info),
- other => {
- eprintln!("bad request kind: {:?}", &other);
- return (StatusCode::MISDIRECTED_REQUEST, resp_body).into_response();
- }
- };
-
- eprintln!("client identifies itself as {:?}", host_info);
-
- let host_info_id = ctx.0.id_for_host(&host_info).expect("can get a host info id");
-
- let client = match RunnerClient::new(tx_sender, job_resp, accepted_pushers, host_info_id).await {
- Ok(v) => v,
- Err(e) => {
- eprintln!("unable to register client");
- return (StatusCode::MISDIRECTED_REQUEST, resp_body).into_response();
- }
- };
-
- match ctx.1.try_send(client) {
- Ok(()) => {
- eprintln!("client requested work...");
- return (StatusCode::OK, resp_body).into_response();
- }
- Err(TrySendError::Full(client)) => {
- return (StatusCode::IM_A_TEAPOT, resp_body).into_response();
- }
- Err(TrySendError::Closed(client)) => {
- panic!("client holder is gone?");
- }
- }
-}
-
-async fn make_api_server(dbctx: Arc<DbCtx>) -> (Router, mpsc::Receiver<RunnerClient>) {
- let (pending_client_sender, pending_client_receiver) = mpsc::channel(8);
-
- let router = Router::new()
- .route("/api/next_job", post(handle_next_job))
- .route("/api/artifact", post(handle_artifact))
- .with_state((dbctx, pending_client_sender));
- (router, pending_client_receiver)
-}
-
-#[derive(Deserialize, Serialize)]
-struct DriverConfig {
- cert_path: PathBuf,
- key_path: PathBuf,
- config_path: PathBuf,
- db_path: PathBuf,
- server_addr: String,
- auth_secret: String,
-}
-
-#[tokio::main]
-async fn main() {
- tracing_subscriber::fmt::init();
-
- let mut args = std::env::args();
- args.next().expect("first arg exists");
- let config_path = args.next().unwrap_or("./driver_config.json".to_string());
- let driver_config: DriverConfig = serde_json::from_reader(std::fs::File::open(config_path).expect("file exists and is accessible")).expect("valid json for DriverConfig");
- let mut auth_secret = AUTH_SECRET.write().unwrap();
- *auth_secret = Some(driver_config.auth_secret.clone());
- std::mem::drop(auth_secret);
-
- let config = RustlsConfig::from_pem_file(
- driver_config.cert_path.clone(),
- driver_config.key_path.clone(),
- ).await.unwrap();
-
- let dbctx = Arc::new(DbCtx::new(&driver_config.config_path, &driver_config.db_path));
-
- dbctx.create_tables().unwrap();
-
- let (api_server, mut channel) = make_api_server(Arc::clone(&dbctx)).await;
- spawn(axum_server::bind_rustls(driver_config.server_addr.parse().unwrap(), config)
- .serve(api_server.into_make_service()));
-
- spawn(old_task_reaper(Arc::clone(&dbctx)));
-
- loop {
- let mut candidate = match channel.recv().await
- .ok_or_else(|| "client channel disconnected".to_string()) {
-
- Ok(candidate) => { candidate },
- Err(e) => { eprintln!("client error: {}", e); continue; }
- };
-
- let dbctx = Arc::clone(&dbctx);
- spawn(async move {
- let host_id = candidate.host_id;
- let res = find_client_task(dbctx, candidate).await;
- eprintln!("task client for {}: {:?}", host_id, res);
- });
- }
-}
-
-async fn find_client_task(dbctx: Arc<DbCtx>, mut candidate: RunnerClient) -> Result<(), String> {
- let find_client_task_start = std::time::Instant::now();
-
- let (run, job) = 'find_work: loop {
- // try to find a job for this candidate:
- // * start with pending runs - these need *some* client to run them, but do not care which
- // * if no new jobs, maybe an existing job still needs a rerun on this client?
- // * otherwise, um, i dunno. do nothing?
-
- let runs = dbctx.get_pending_runs(Some(candidate.host_id)).unwrap();
-
- if runs.len() > 0 {
- println!("{} new runs", runs.len());
-
- for run in runs.into_iter() {
- let job = dbctx.job_by_id(run.job_id).expect("can query").expect("job exists");
-
- if candidate.will_accept(&job) {
- break 'find_work (run, job);
- }
-
- }
- }
-
- let alt_run_jobs = dbctx.jobs_needing_task_runs_for_host(candidate.host_id as u64).expect("can query");
-
- for job in alt_run_jobs.into_iter() {
- if candidate.will_accept(&job) {
- let run = dbctx.new_run(job.id, Some(candidate.host_id)).unwrap();
- break 'find_work (run, job);
- }
- }
-
- tokio::time::sleep(std::time::Duration::from_millis(100)).await;
-
- if candidate.test_connection().await.is_err() {
- return Err("lost client connection".to_string());
- }
-
- if find_client_task_start.elapsed().as_secs() > 300 {
- return Err("5min new task deadline elapsed".to_string());
- }
- };
-
- eprintln!("enqueueing job {} for alternate run under host id {}", job.id, candidate.host_id);
- activate_run(Arc::clone(&dbctx), candidate, &job, &run).await?;
-
- Ok(())
-}
-
-async fn old_task_reaper(dbctx: Arc<DbCtx>) {
- let mut potentially_stale_tasks = dbctx.get_active_runs().unwrap();
-
- let active_tasks = ACTIVE_TASKS.lock().unwrap();
-
- for (id, witness) in active_tasks.iter() {
- if let Some(idx) = potentially_stale_tasks.iter().position(|task| task.id == *id) {
- potentially_stale_tasks.swap_remove(idx);
- }
- }
-
- std::mem::drop(active_tasks);
-
- // ok, so we have tasks that are not active, now if the task is started we know someone should
- // be running it and they are not. retain only those tasks, as they are ones we may want to
- // mark dead.
- //
- // further, filter out any tasks created in the last 60 seconds. this is a VERY generous grace
- // period for clients that have accepted a job but for some reason we have not recorded them as
- // active (perhaps they are slow to ack somehow).
-
- let stale_threshold = crate::io::now_ms() - 60_000;
-
- let stale_tasks: Vec<Run> = potentially_stale_tasks.into_iter().filter(|task| {
- match (task.state, task.start_time) {
- // `run` is atomically set to `Started` and adorned with a `start_time`. disagreement
- // between the two means this run is corrupt and should be reaped.
- (RunState::Started, None) => {
- true
- },
- (RunState::Started, Some(start_time)) => {
- start_time < stale_threshold
- }
- // and if it's not `started`, it's either pending (not assigned yet, so not stale), or
- // one of the complete statuses.
- _ => {
- false
- }
- }
- }).collect();
-
- for task in stale_tasks.iter() {
- eprintln!("looks like task {} is stale, reaping", task.id);
- dbctx.reap_task(task.id).expect("works");
- }
-}
generated by cgit v1.1 at 2024-11-08 12:15:00 +0000