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| 1 | +/// Dev helper: starts an s3s fake S3 server, seeds it with test trace data, |
| 2 | +/// then starts the dial9-viewer pointed at it. |
| 3 | +/// |
| 4 | +/// Usage: cargo run -p dial9-viewer --bin dev-server |
| 5 | +use std::io::Write; |
| 6 | + |
| 7 | +#[tokio::main] |
| 8 | +async fn main() -> anyhow::Result<()> { |
| 9 | + tracing_subscriber::fmt() |
| 10 | + .with_env_filter("dial9_viewer=info,dev_server=info") |
| 11 | + .init(); |
| 12 | + |
| 13 | + // Set up s3s-fs backed fake S3 |
| 14 | + let s3_root = tempfile::tempdir()?; |
| 15 | + let bucket = "demo-traces"; |
| 16 | + std::fs::create_dir(s3_root.path().join(bucket))?; |
| 17 | + |
| 18 | + let fs = s3s_fs::FileSystem::new(s3_root.path()).map_err(|e| anyhow::anyhow!("{e:?}"))?; |
| 19 | + let mut builder = s3s::service::S3ServiceBuilder::new(fs); |
| 20 | + builder.set_auth(s3s::auth::SimpleAuth::from_single("test", "test")); |
| 21 | + let s3_service = builder.build(); |
| 22 | + let s3_client: s3s_aws::Client = s3_service.into(); |
| 23 | + |
| 24 | + let s3_config = aws_sdk_s3::Config::builder() |
| 25 | + .behavior_version_latest() |
| 26 | + .credentials_provider(aws_sdk_s3::config::Credentials::new( |
| 27 | + "test", "test", None, None, "test", |
| 28 | + )) |
| 29 | + .region(aws_sdk_s3::config::Region::new("us-east-1")) |
| 30 | + .http_client(s3_client) |
| 31 | + .force_path_style(true) |
| 32 | + .build(); |
| 33 | + |
| 34 | + let client = aws_sdk_s3::Client::from_conf(s3_config); |
| 35 | + |
| 36 | + // Seed with demo trace data — use the actual demo-trace.bin if available |
| 37 | + let demo_trace_path = |
| 38 | + std::path::Path::new(env!("CARGO_MANIFEST_DIR")).join("ui/demo-trace.bin"); |
| 39 | + |
| 40 | + if demo_trace_path.exists() { |
| 41 | + let compressed = std::fs::read(&demo_trace_path)?; |
| 42 | + // demo-trace.bin is gzipped — decompress before splitting |
| 43 | + let demo_data = gunzip_bytes(&compressed); |
| 44 | + |
| 45 | + // Upload the full trace as a single gzipped segment |
| 46 | + let full_compressed = gzip_bytes(&demo_data); |
| 47 | + client |
| 48 | + .put_object() |
| 49 | + .bucket(bucket) |
| 50 | + .key("traces/2026-04-09/1900/demo-service/local/host-0/1744224000-0.bin.gz") |
| 51 | + .body(full_compressed.into()) |
| 52 | + .send() |
| 53 | + .await?; |
| 54 | + tracing::info!( |
| 55 | + key = "traces/2026-04-09/1900/demo-service/local/host-0/1744224000-0.bin.gz", |
| 56 | + size = demo_data.len(), |
| 57 | + "seeded full demo trace" |
| 58 | + ); |
| 59 | + } else { |
| 60 | + tracing::warn!("demo-trace.bin not found, seeding with synthetic data"); |
| 61 | + for i in 0..5 { |
| 62 | + let data = format!("synthetic trace segment {i}"); |
| 63 | + let compressed = gzip_bytes(data.as_bytes()); |
| 64 | + let key = |
| 65 | + format!("traces/2026-04-09/191{i}/test-svc/us-east-1/host-1/1744224{i}00-0.bin.gz"); |
| 66 | + client |
| 67 | + .put_object() |
| 68 | + .bucket(bucket) |
| 69 | + .key(&key) |
| 70 | + .body(compressed.into()) |
| 71 | + .send() |
| 72 | + .await?; |
| 73 | + tracing::info!(%key, "seeded"); |
| 74 | + } |
| 75 | + } |
| 76 | + |
| 77 | + // Start the viewer with the s3s-backed S3Backend |
| 78 | + let backend = dial9_viewer::storage::S3Backend::from_client(client); |
| 79 | + let state = dial9_viewer::server::AppState::new( |
| 80 | + std::sync::Arc::new(backend), |
| 81 | + Some(bucket.to_string()), |
| 82 | + Some("traces".to_string()), |
| 83 | + ); |
| 84 | + |
| 85 | + let ui_dir = std::path::Path::new(env!("CARGO_MANIFEST_DIR")).join("ui"); |
| 86 | + let app = dial9_viewer::server::router(state, &ui_dir); |
| 87 | + |
| 88 | + let listener = tokio::net::TcpListener::bind("0.0.0.0:3000").await?; |
| 89 | + tracing::info!("dial9-viewer dev server listening on http://localhost:3000"); |
| 90 | + tracing::info!("bucket={bucket}, prefix=traces"); |
| 91 | + tracing::info!("try: http://localhost:3000/browser.html"); |
| 92 | + tracing::info!("search for: 2026-04-09/"); |
| 93 | + |
| 94 | + axum::serve(listener, app) |
| 95 | + .with_graceful_shutdown(async { |
| 96 | + tokio::signal::ctrl_c().await.ok(); |
| 97 | + }) |
| 98 | + .await?; |
| 99 | + |
| 100 | + Ok(()) |
| 101 | +} |
| 102 | + |
| 103 | +fn gzip_bytes(data: &[u8]) -> Vec<u8> { |
| 104 | + use flate2::Compression; |
| 105 | + use flate2::write::GzEncoder; |
| 106 | + let mut encoder = GzEncoder::new(Vec::new(), Compression::fast()); |
| 107 | + encoder.write_all(data).unwrap(); |
| 108 | + encoder.finish().unwrap() |
| 109 | +} |
| 110 | + |
| 111 | +fn gunzip_bytes(data: &[u8]) -> Vec<u8> { |
| 112 | + use flate2::read::GzDecoder; |
| 113 | + use std::io::Read; |
| 114 | + let mut decoder = GzDecoder::new(data); |
| 115 | + let mut out = Vec::new(); |
| 116 | + decoder.read_to_end(&mut out).unwrap(); |
| 117 | + out |
| 118 | +} |
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