LCOV - code coverage report
Current view: top level - proxy/src/bin - proxy.rs (source / functions) Coverage Total Hit
Test: d0feeceb9d5ee9c8e73bee7d4ffcced539793178.info Lines: 9.6 % 458 44
Test Date: 2024-06-26 15:19:01 Functions: 15.0 % 120 18

            Line data    Source code
       1              : use aws_config::environment::EnvironmentVariableCredentialsProvider;
       2              : use aws_config::imds::credentials::ImdsCredentialsProvider;
       3              : use aws_config::meta::credentials::CredentialsProviderChain;
       4              : use aws_config::meta::region::RegionProviderChain;
       5              : use aws_config::profile::ProfileFileCredentialsProvider;
       6              : use aws_config::provider_config::ProviderConfig;
       7              : use aws_config::web_identity_token::WebIdentityTokenCredentialsProvider;
       8              : use futures::future::Either;
       9              : use proxy::auth;
      10              : use proxy::auth::backend::AuthRateLimiter;
      11              : use proxy::auth::backend::MaybeOwned;
      12              : use proxy::cancellation::CancelMap;
      13              : use proxy::cancellation::CancellationHandler;
      14              : use proxy::config::remote_storage_from_toml;
      15              : use proxy::config::AuthenticationConfig;
      16              : use proxy::config::CacheOptions;
      17              : use proxy::config::HttpConfig;
      18              : use proxy::config::ProjectInfoCacheOptions;
      19              : use proxy::console;
      20              : use proxy::context::parquet::ParquetUploadArgs;
      21              : use proxy::http;
      22              : use proxy::http::health_server::AppMetrics;
      23              : use proxy::metrics::Metrics;
      24              : use proxy::rate_limiter::EndpointRateLimiter;
      25              : use proxy::rate_limiter::RateBucketInfo;
      26              : use proxy::redis::cancellation_publisher::RedisPublisherClient;
      27              : use proxy::redis::connection_with_credentials_provider::ConnectionWithCredentialsProvider;
      28              : use proxy::redis::elasticache;
      29              : use proxy::redis::notifications;
      30              : use proxy::scram::threadpool::ThreadPool;
      31              : use proxy::serverless::cancel_set::CancelSet;
      32              : use proxy::serverless::GlobalConnPoolOptions;
      33              : use proxy::usage_metrics;
      34              : 
      35              : use anyhow::bail;
      36              : use proxy::config::{self, ProxyConfig};
      37              : use proxy::serverless;
      38              : use std::net::SocketAddr;
      39              : use std::pin::pin;
      40              : use std::sync::Arc;
      41              : use tokio::net::TcpListener;
      42              : use tokio::sync::Mutex;
      43              : use tokio::task::JoinSet;
      44              : use tokio_util::sync::CancellationToken;
      45              : use tracing::info;
      46              : use tracing::warn;
      47              : use tracing::Instrument;
      48              : use utils::{project_build_tag, project_git_version, sentry_init::init_sentry};
      49              : 
      50              : project_git_version!(GIT_VERSION);
      51              : project_build_tag!(BUILD_TAG);
      52              : 
      53              : use clap::{Parser, ValueEnum};
      54              : 
      55              : #[global_allocator]
      56              : static GLOBAL: tikv_jemallocator::Jemalloc = tikv_jemallocator::Jemalloc;
      57              : 
      58           20 : #[derive(Clone, Debug, ValueEnum)]
      59              : enum AuthBackend {
      60              :     Console,
      61              :     #[cfg(feature = "testing")]
      62              :     Postgres,
      63              :     Link,
      64              : }
      65              : 
      66              : /// Neon proxy/router
      67            4 : #[derive(Parser)]
      68              : #[command(version = GIT_VERSION, about)]
      69              : struct ProxyCliArgs {
      70              :     /// Name of the region this proxy is deployed in
      71            2 :     #[clap(long, default_value_t = String::new())]
      72            0 :     region: String,
      73              :     /// listen for incoming client connections on ip:port
      74              :     #[clap(short, long, default_value = "127.0.0.1:4432")]
      75            0 :     proxy: String,
      76            2 :     #[clap(value_enum, long, default_value_t = AuthBackend::Link)]
      77            0 :     auth_backend: AuthBackend,
      78              :     /// listen for management callback connection on ip:port
      79              :     #[clap(short, long, default_value = "127.0.0.1:7000")]
      80            0 :     mgmt: String,
      81              :     /// listen for incoming http connections (metrics, etc) on ip:port
      82              :     #[clap(long, default_value = "127.0.0.1:7001")]
      83            0 :     http: String,
      84              :     /// listen for incoming wss connections on ip:port
      85              :     #[clap(long)]
      86              :     wss: Option<String>,
      87              :     /// redirect unauthenticated users to the given uri in case of link auth
      88              :     #[clap(short, long, default_value = "http://localhost:3000/psql_session/")]
      89            0 :     uri: String,
      90              :     /// cloud API endpoint for authenticating users
      91              :     #[clap(
      92              :         short,
      93              :         long,
      94              :         default_value = "http://localhost:3000/authenticate_proxy_request/"
      95              :     )]
      96            0 :     auth_endpoint: String,
      97              :     /// path to TLS key for client postgres connections
      98              :     ///
      99              :     /// tls-key and tls-cert are for backwards compatibility, we can put all certs in one dir
     100              :     #[clap(short = 'k', long, alias = "ssl-key")]
     101              :     tls_key: Option<String>,
     102              :     /// path to TLS cert for client postgres connections
     103              :     ///
     104              :     /// tls-key and tls-cert are for backwards compatibility, we can put all certs in one dir
     105              :     #[clap(short = 'c', long, alias = "ssl-cert")]
     106              :     tls_cert: Option<String>,
     107              :     /// path to directory with TLS certificates for client postgres connections
     108              :     #[clap(long)]
     109              :     certs_dir: Option<String>,
     110              :     /// timeout for the TLS handshake
     111              :     #[clap(long, default_value = "15s", value_parser = humantime::parse_duration)]
     112            0 :     handshake_timeout: tokio::time::Duration,
     113              :     /// http endpoint to receive periodic metric updates
     114              :     #[clap(long)]
     115              :     metric_collection_endpoint: Option<String>,
     116              :     /// how often metrics should be sent to a collection endpoint
     117              :     #[clap(long)]
     118              :     metric_collection_interval: Option<String>,
     119              :     /// cache for `wake_compute` api method (use `size=0` to disable)
     120              :     #[clap(long, default_value = config::CacheOptions::CACHE_DEFAULT_OPTIONS)]
     121            0 :     wake_compute_cache: String,
     122              :     /// lock for `wake_compute` api method. example: "shards=32,permits=4,epoch=10m,timeout=1s". (use `permits=0` to disable).
     123              :     #[clap(long, default_value = config::ConcurrencyLockOptions::DEFAULT_OPTIONS_WAKE_COMPUTE_LOCK)]
     124            0 :     wake_compute_lock: String,
     125              :     /// lock for `connect_compute` api method. example: "shards=32,permits=4,epoch=10m,timeout=1s". (use `permits=0` to disable).
     126              :     #[clap(long, default_value = config::ConcurrencyLockOptions::DEFAULT_OPTIONS_CONNECT_COMPUTE_LOCK)]
     127            0 :     connect_compute_lock: String,
     128              :     /// Allow self-signed certificates for compute nodes (for testing)
     129            2 :     #[clap(long, default_value_t = false, value_parser = clap::builder::BoolishValueParser::new(), action = clap::ArgAction::Set)]
     130            0 :     allow_self_signed_compute: bool,
     131              :     #[clap(flatten)]
     132              :     sql_over_http: SqlOverHttpArgs,
     133              :     /// timeout for scram authentication protocol
     134              :     #[clap(long, default_value = "15s", value_parser = humantime::parse_duration)]
     135            0 :     scram_protocol_timeout: tokio::time::Duration,
     136              :     /// size of the threadpool for password hashing
     137            2 :     #[clap(long, default_value_t = 4)]
     138            0 :     scram_thread_pool_size: u8,
     139              :     /// Require that all incoming requests have a Proxy Protocol V2 packet **and** have an IP address associated.
     140            2 :     #[clap(long, default_value_t = false, value_parser = clap::builder::BoolishValueParser::new(), action = clap::ArgAction::Set)]
     141            0 :     require_client_ip: bool,
     142              :     /// Disable dynamic rate limiter and store the metrics to ensure its production behaviour.
     143            2 :     #[clap(long, default_value_t = true, value_parser = clap::builder::BoolishValueParser::new(), action = clap::ArgAction::Set)]
     144            0 :     disable_dynamic_rate_limiter: bool,
     145              :     /// Endpoint rate limiter max number of requests per second.
     146              :     ///
     147              :     /// Provided in the form '<Requests Per Second>@<Bucket Duration Size>'.
     148              :     /// Can be given multiple times for different bucket sizes.
     149           12 :     #[clap(long, default_values_t = RateBucketInfo::DEFAULT_ENDPOINT_SET)]
     150            2 :     endpoint_rps_limit: Vec<RateBucketInfo>,
     151              :     /// Wake compute rate limiter max number of requests per second.
     152           12 :     #[clap(long, default_values_t = RateBucketInfo::DEFAULT_SET)]
     153            2 :     wake_compute_limit: Vec<RateBucketInfo>,
     154              :     /// Whether the auth rate limiter actually takes effect (for testing)
     155            2 :     #[clap(long, default_value_t = false, value_parser = clap::builder::BoolishValueParser::new(), action = clap::ArgAction::Set)]
     156            0 :     auth_rate_limit_enabled: bool,
     157              :     /// Authentication rate limiter max number of hashes per second.
     158           12 :     #[clap(long, default_values_t = RateBucketInfo::DEFAULT_AUTH_SET)]
     159            2 :     auth_rate_limit: Vec<RateBucketInfo>,
     160              :     /// The IP subnet to use when considering whether two IP addresses are considered the same.
     161            2 :     #[clap(long, default_value_t = 64)]
     162            0 :     auth_rate_limit_ip_subnet: u8,
     163              :     /// Redis rate limiter max number of requests per second.
     164           12 :     #[clap(long, default_values_t = RateBucketInfo::DEFAULT_SET)]
     165            2 :     redis_rps_limit: Vec<RateBucketInfo>,
     166              :     /// cache for `allowed_ips` (use `size=0` to disable)
     167              :     #[clap(long, default_value = config::CacheOptions::CACHE_DEFAULT_OPTIONS)]
     168            0 :     allowed_ips_cache: String,
     169              :     /// cache for `role_secret` (use `size=0` to disable)
     170              :     #[clap(long, default_value = config::CacheOptions::CACHE_DEFAULT_OPTIONS)]
     171            0 :     role_secret_cache: String,
     172              :     /// disable ip check for http requests. If it is too time consuming, it could be turned off.
     173            2 :     #[clap(long, default_value_t = false, value_parser = clap::builder::BoolishValueParser::new(), action = clap::ArgAction::Set)]
     174            0 :     disable_ip_check_for_http: bool,
     175              :     /// redis url for notifications (if empty, redis_host:port will be used for both notifications and streaming connections)
     176              :     #[clap(long)]
     177              :     redis_notifications: Option<String>,
     178              :     /// redis host for streaming connections (might be different from the notifications host)
     179              :     #[clap(long)]
     180              :     redis_host: Option<String>,
     181              :     /// redis port for streaming connections (might be different from the notifications host)
     182              :     #[clap(long)]
     183              :     redis_port: Option<u16>,
     184              :     /// redis cluster name, used in aws elasticache
     185              :     #[clap(long)]
     186              :     redis_cluster_name: Option<String>,
     187              :     /// redis user_id, used in aws elasticache
     188              :     #[clap(long)]
     189              :     redis_user_id: Option<String>,
     190              :     /// aws region to retrieve credentials
     191            2 :     #[clap(long, default_value_t = String::new())]
     192            0 :     aws_region: String,
     193              :     /// cache for `project_info` (use `size=0` to disable)
     194              :     #[clap(long, default_value = config::ProjectInfoCacheOptions::CACHE_DEFAULT_OPTIONS)]
     195            0 :     project_info_cache: String,
     196              :     /// cache for all valid endpoints
     197              :     #[clap(long, default_value = config::EndpointCacheConfig::CACHE_DEFAULT_OPTIONS)]
     198            0 :     endpoint_cache_config: String,
     199              :     #[clap(flatten)]
     200              :     parquet_upload: ParquetUploadArgs,
     201              : 
     202              :     /// interval for backup metric collection
     203              :     #[clap(long, default_value = "10m", value_parser = humantime::parse_duration)]
     204            0 :     metric_backup_collection_interval: std::time::Duration,
     205              :     /// remote storage configuration for backup metric collection
     206              :     /// Encoded as toml (same format as pageservers), eg
     207              :     /// `{bucket_name='the-bucket',bucket_region='us-east-1',prefix_in_bucket='proxy',endpoint='http://minio:9000'}`
     208              :     #[clap(long, default_value = "{}")]
     209            0 :     metric_backup_collection_remote_storage: String,
     210              :     /// chunk size for backup metric collection
     211              :     /// Size of each event is no more than 400 bytes, so 2**22 is about 200MB before the compression.
     212              :     #[clap(long, default_value = "4194304")]
     213            0 :     metric_backup_collection_chunk_size: usize,
     214              :     /// Whether to retry the connection to the compute node
     215              :     #[clap(long, default_value = config::RetryConfig::CONNECT_TO_COMPUTE_DEFAULT_VALUES)]
     216            0 :     connect_to_compute_retry: String,
     217              :     /// Whether to retry the wake_compute request
     218              :     #[clap(long, default_value = config::RetryConfig::WAKE_COMPUTE_DEFAULT_VALUES)]
     219            0 :     wake_compute_retry: String,
     220              : }
     221              : 
     222            4 : #[derive(clap::Args, Clone, Copy, Debug)]
     223              : struct SqlOverHttpArgs {
     224              :     /// timeout for http connection requests
     225              :     #[clap(long, default_value = "15s", value_parser = humantime::parse_duration)]
     226            0 :     sql_over_http_timeout: tokio::time::Duration,
     227              : 
     228              :     /// Whether the SQL over http pool is opt-in
     229            2 :     #[clap(long, default_value_t = true, value_parser = clap::builder::BoolishValueParser::new(), action = clap::ArgAction::Set)]
     230            0 :     sql_over_http_pool_opt_in: bool,
     231              : 
     232              :     /// How many connections to pool for each endpoint. Excess connections are discarded
     233            2 :     #[clap(long, default_value_t = 20)]
     234            0 :     sql_over_http_pool_max_conns_per_endpoint: usize,
     235              : 
     236              :     /// How many connections to pool for each endpoint. Excess connections are discarded
     237            2 :     #[clap(long, default_value_t = 20000)]
     238            0 :     sql_over_http_pool_max_total_conns: usize,
     239              : 
     240              :     /// How long pooled connections should remain idle for before closing
     241              :     #[clap(long, default_value = "5m", value_parser = humantime::parse_duration)]
     242            0 :     sql_over_http_idle_timeout: tokio::time::Duration,
     243              : 
     244              :     /// Duration each shard will wait on average before a GC sweep.
     245              :     /// A longer time will causes sweeps to take longer but will interfere less frequently.
     246              :     #[clap(long, default_value = "10m", value_parser = humantime::parse_duration)]
     247            0 :     sql_over_http_pool_gc_epoch: tokio::time::Duration,
     248              : 
     249              :     /// How many shards should the global pool have. Must be a power of two.
     250              :     /// More shards will introduce less contention for pool operations, but can
     251              :     /// increase memory used by the pool
     252            2 :     #[clap(long, default_value_t = 128)]
     253            0 :     sql_over_http_pool_shards: usize,
     254              : 
     255            2 :     #[clap(long, default_value_t = 10000)]
     256            0 :     sql_over_http_client_conn_threshold: u64,
     257              : 
     258            2 :     #[clap(long, default_value_t = 64)]
     259            0 :     sql_over_http_cancel_set_shards: usize,
     260              : }
     261              : 
     262              : #[tokio::main]
     263            0 : async fn main() -> anyhow::Result<()> {
     264            0 :     let _logging_guard = proxy::logging::init().await?;
     265            0 :     let _panic_hook_guard = utils::logging::replace_panic_hook_with_tracing_panic_hook();
     266            0 :     let _sentry_guard = init_sentry(Some(GIT_VERSION.into()), &[]);
     267            0 : 
     268            0 :     info!("Version: {GIT_VERSION}");
     269            0 :     info!("Build_tag: {BUILD_TAG}");
     270            0 :     let neon_metrics = ::metrics::NeonMetrics::new(::metrics::BuildInfo {
     271            0 :         revision: GIT_VERSION,
     272            0 :         build_tag: BUILD_TAG,
     273            0 :     });
     274            0 : 
     275            0 :     let jemalloc = match proxy::jemalloc::MetricRecorder::new() {
     276            0 :         Ok(t) => Some(t),
     277            0 :         Err(e) => {
     278            0 :             tracing::error!(error = ?e, "could not start jemalloc metrics loop");
     279            0 :             None
     280            0 :         }
     281            0 :     };
     282            0 : 
     283            0 :     let args = ProxyCliArgs::parse();
     284            0 :     let config = build_config(&args)?;
     285            0 : 
     286            0 :     info!("Authentication backend: {}", config.auth_backend);
     287            0 :     info!("Using region: {}", config.aws_region);
     288            0 : 
     289            0 :     let region_provider = RegionProviderChain::default_provider().or_else(&*config.aws_region); // Replace with your Redis region if needed
     290            0 :     let provider_conf =
     291            0 :         ProviderConfig::without_region().with_region(region_provider.region().await);
     292            0 :     let aws_credentials_provider = {
     293            0 :         // uses "AWS_ACCESS_KEY_ID", "AWS_SECRET_ACCESS_KEY"
     294            0 :         CredentialsProviderChain::first_try("env", EnvironmentVariableCredentialsProvider::new())
     295            0 :             // uses "AWS_PROFILE" / `aws sso login --profile <profile>`
     296            0 :             .or_else(
     297            0 :                 "profile-sso",
     298            0 :                 ProfileFileCredentialsProvider::builder()
     299            0 :                     .configure(&provider_conf)
     300            0 :                     .build(),
     301            0 :             )
     302            0 :             // uses "AWS_WEB_IDENTITY_TOKEN_FILE", "AWS_ROLE_ARN", "AWS_ROLE_SESSION_NAME"
     303            0 :             // needed to access remote extensions bucket
     304            0 :             .or_else(
     305            0 :                 "token",
     306            0 :                 WebIdentityTokenCredentialsProvider::builder()
     307            0 :                     .configure(&provider_conf)
     308            0 :                     .build(),
     309            0 :             )
     310            0 :             // uses imds v2
     311            0 :             .or_else("imds", ImdsCredentialsProvider::builder().build())
     312            0 :     };
     313            0 :     let elasticache_credentials_provider = Arc::new(elasticache::CredentialsProvider::new(
     314            0 :         elasticache::AWSIRSAConfig::new(
     315            0 :             config.aws_region.clone(),
     316            0 :             args.redis_cluster_name,
     317            0 :             args.redis_user_id,
     318            0 :         ),
     319            0 :         aws_credentials_provider,
     320            0 :     ));
     321            0 :     let regional_redis_client = match (args.redis_host, args.redis_port) {
     322            0 :         (Some(host), Some(port)) => Some(
     323            0 :             ConnectionWithCredentialsProvider::new_with_credentials_provider(
     324            0 :                 host,
     325            0 :                 port,
     326            0 :                 elasticache_credentials_provider.clone(),
     327            0 :             ),
     328            0 :         ),
     329            0 :         (None, None) => {
     330            0 :             warn!("Redis events from console are disabled");
     331            0 :             None
     332            0 :         }
     333            0 :         _ => {
     334            0 :             bail!("redis-host and redis-port must be specified together");
     335            0 :         }
     336            0 :     };
     337            0 :     let redis_notifications_client = if let Some(url) = args.redis_notifications {
     338            0 :         Some(ConnectionWithCredentialsProvider::new_with_static_credentials(url))
     339            0 :     } else {
     340            0 :         regional_redis_client.clone()
     341            0 :     };
     342            0 : 
     343            0 :     // Check that we can bind to address before further initialization
     344            0 :     let http_address: SocketAddr = args.http.parse()?;
     345            0 :     info!("Starting http on {http_address}");
     346            0 :     let http_listener = TcpListener::bind(http_address).await?.into_std()?;
     347            0 : 
     348            0 :     let mgmt_address: SocketAddr = args.mgmt.parse()?;
     349            0 :     info!("Starting mgmt on {mgmt_address}");
     350            0 :     let mgmt_listener = TcpListener::bind(mgmt_address).await?;
     351            0 : 
     352            0 :     let proxy_address: SocketAddr = args.proxy.parse()?;
     353            0 :     info!("Starting proxy on {proxy_address}");
     354            0 :     let proxy_listener = TcpListener::bind(proxy_address).await?;
     355            0 :     let cancellation_token = CancellationToken::new();
     356            0 : 
     357            0 :     let cancel_map = CancelMap::default();
     358            0 : 
     359            0 :     let redis_publisher = match &regional_redis_client {
     360            0 :         Some(redis_publisher) => Some(Arc::new(Mutex::new(RedisPublisherClient::new(
     361            0 :             redis_publisher.clone(),
     362            0 :             args.region.clone(),
     363            0 :             &config.redis_rps_limit,
     364            0 :         )?))),
     365            0 :         None => None,
     366            0 :     };
     367            0 :     let cancellation_handler = Arc::new(CancellationHandler::<
     368            0 :         Option<Arc<tokio::sync::Mutex<RedisPublisherClient>>>,
     369            0 :     >::new(
     370            0 :         cancel_map.clone(),
     371            0 :         redis_publisher,
     372            0 :         proxy::metrics::CancellationSource::FromClient,
     373            0 :     ));
     374            0 : 
     375            0 :     let mut endpoint_rps_limit = args.endpoint_rps_limit.clone();
     376            0 :     RateBucketInfo::validate(&mut endpoint_rps_limit)?;
     377            0 :     let endpoint_rate_limiter = Arc::new(EndpointRateLimiter::new(endpoint_rps_limit));
     378            0 : 
     379            0 :     // client facing tasks. these will exit on error or on cancellation
     380            0 :     // cancellation returns Ok(())
     381            0 :     let mut client_tasks = JoinSet::new();
     382            0 :     client_tasks.spawn(proxy::proxy::task_main(
     383            0 :         config,
     384            0 :         proxy_listener,
     385            0 :         cancellation_token.clone(),
     386            0 :         cancellation_handler.clone(),
     387            0 :         endpoint_rate_limiter.clone(),
     388            0 :     ));
     389            0 : 
     390            0 :     // TODO: rename the argument to something like serverless.
     391            0 :     // It now covers more than just websockets, it also covers SQL over HTTP.
     392            0 :     if let Some(serverless_address) = args.wss {
     393            0 :         let serverless_address: SocketAddr = serverless_address.parse()?;
     394            0 :         info!("Starting wss on {serverless_address}");
     395            0 :         let serverless_listener = TcpListener::bind(serverless_address).await?;
     396            0 : 
     397            0 :         client_tasks.spawn(serverless::task_main(
     398            0 :             config,
     399            0 :             serverless_listener,
     400            0 :             cancellation_token.clone(),
     401            0 :             cancellation_handler.clone(),
     402            0 :             endpoint_rate_limiter.clone(),
     403            0 :         ));
     404            0 :     }
     405            0 : 
     406            0 :     client_tasks.spawn(proxy::context::parquet::worker(
     407            0 :         cancellation_token.clone(),
     408            0 :         args.parquet_upload,
     409            0 :     ));
     410            0 : 
     411            0 :     // maintenance tasks. these never return unless there's an error
     412            0 :     let mut maintenance_tasks = JoinSet::new();
     413            0 :     maintenance_tasks.spawn(proxy::handle_signals(cancellation_token.clone()));
     414            0 :     maintenance_tasks.spawn(http::health_server::task_main(
     415            0 :         http_listener,
     416            0 :         AppMetrics {
     417            0 :             jemalloc,
     418            0 :             neon_metrics,
     419            0 :             proxy: proxy::metrics::Metrics::get(),
     420            0 :         },
     421            0 :     ));
     422            0 :     maintenance_tasks.spawn(console::mgmt::task_main(mgmt_listener));
     423            0 : 
     424            0 :     if let Some(metrics_config) = &config.metric_collection {
     425            0 :         // TODO: Add gc regardles of the metric collection being enabled.
     426            0 :         maintenance_tasks.spawn(usage_metrics::task_main(metrics_config));
     427            0 :         client_tasks.spawn(usage_metrics::task_backup(
     428            0 :             &metrics_config.backup_metric_collection_config,
     429            0 :             cancellation_token.clone(),
     430            0 :         ));
     431            0 :     }
     432            0 : 
     433            0 :     if let auth::BackendType::Console(api, _) = &config.auth_backend {
     434            0 :         if let proxy::console::provider::ConsoleBackend::Console(api) = &**api {
     435            0 :             match (redis_notifications_client, regional_redis_client.clone()) {
     436            0 :                 (None, None) => {}
     437            0 :                 (client1, client2) => {
     438            0 :                     let cache = api.caches.project_info.clone();
     439            0 :                     if let Some(client) = client1 {
     440            0 :                         maintenance_tasks.spawn(notifications::task_main(
     441            0 :                             client,
     442            0 :                             cache.clone(),
     443            0 :                             cancel_map.clone(),
     444            0 :                             args.region.clone(),
     445            0 :                         ));
     446            0 :                     }
     447            0 :                     if let Some(client) = client2 {
     448            0 :                         maintenance_tasks.spawn(notifications::task_main(
     449            0 :                             client,
     450            0 :                             cache.clone(),
     451            0 :                             cancel_map.clone(),
     452            0 :                             args.region.clone(),
     453            0 :                         ));
     454            0 :                     }
     455            0 :                     maintenance_tasks.spawn(async move { cache.clone().gc_worker().await });
     456            0 :                 }
     457            0 :             }
     458            0 :             if let Some(regional_redis_client) = regional_redis_client {
     459            0 :                 let cache = api.caches.endpoints_cache.clone();
     460            0 :                 let con = regional_redis_client;
     461            0 :                 let span = tracing::info_span!("endpoints_cache");
     462            0 :                 maintenance_tasks.spawn(
     463            0 :                     async move { cache.do_read(con, cancellation_token.clone()).await }
     464            0 :                         .instrument(span),
     465            0 :                 );
     466            0 :             }
     467            0 :         }
     468            0 :     }
     469            0 : 
     470            0 :     let maintenance = loop {
     471            0 :         // get one complete task
     472            0 :         match futures::future::select(
     473            0 :             pin!(maintenance_tasks.join_next()),
     474            0 :             pin!(client_tasks.join_next()),
     475            0 :         )
     476            0 :         .await
     477            0 :         {
     478            0 :             // exit immediately on maintenance task completion
     479            0 :             Either::Left((Some(res), _)) => break proxy::flatten_err(res)?,
     480            0 :             // exit with error immediately if all maintenance tasks have ceased (should be caught by branch above)
     481            0 :             Either::Left((None, _)) => bail!("no maintenance tasks running. invalid state"),
     482            0 :             // exit immediately on client task error
     483            0 :             Either::Right((Some(res), _)) => proxy::flatten_err(res)?,
     484            0 :             // exit if all our client tasks have shutdown gracefully
     485            0 :             Either::Right((None, _)) => return Ok(()),
     486            0 :         }
     487            0 :     };
     488            0 : 
     489            0 :     // maintenance tasks return Infallible success values, this is an impossible value
     490            0 :     // so this match statically ensures that there are no possibilities for that value
     491            0 :     match maintenance {}
     492            0 : }
     493              : 
     494              : /// ProxyConfig is created at proxy startup, and lives forever.
     495            0 : fn build_config(args: &ProxyCliArgs) -> anyhow::Result<&'static ProxyConfig> {
     496            0 :     let thread_pool = ThreadPool::new(args.scram_thread_pool_size);
     497            0 :     Metrics::install(thread_pool.metrics.clone());
     498              : 
     499            0 :     let tls_config = match (&args.tls_key, &args.tls_cert) {
     500            0 :         (Some(key_path), Some(cert_path)) => Some(config::configure_tls(
     501            0 :             key_path,
     502            0 :             cert_path,
     503            0 :             args.certs_dir.as_ref(),
     504            0 :         )?),
     505            0 :         (None, None) => None,
     506            0 :         _ => bail!("either both or neither tls-key and tls-cert must be specified"),
     507              :     };
     508              : 
     509            0 :     if args.allow_self_signed_compute {
     510            0 :         warn!("allowing self-signed compute certificates");
     511            0 :     }
     512            0 :     let backup_metric_collection_config = config::MetricBackupCollectionConfig {
     513            0 :         interval: args.metric_backup_collection_interval,
     514            0 :         remote_storage_config: remote_storage_from_toml(
     515            0 :             &args.metric_backup_collection_remote_storage,
     516            0 :         )?,
     517            0 :         chunk_size: args.metric_backup_collection_chunk_size,
     518              :     };
     519              : 
     520            0 :     let metric_collection = match (
     521            0 :         &args.metric_collection_endpoint,
     522            0 :         &args.metric_collection_interval,
     523              :     ) {
     524            0 :         (Some(endpoint), Some(interval)) => Some(config::MetricCollectionConfig {
     525            0 :             endpoint: endpoint.parse()?,
     526            0 :             interval: humantime::parse_duration(interval)?,
     527            0 :             backup_metric_collection_config,
     528              :         }),
     529            0 :         (None, None) => None,
     530            0 :         _ => bail!(
     531            0 :             "either both or neither metric-collection-endpoint \
     532            0 :              and metric-collection-interval must be specified"
     533            0 :         ),
     534              :     };
     535            0 :     if !args.disable_dynamic_rate_limiter {
     536            0 :         bail!("dynamic rate limiter should be disabled");
     537            0 :     }
     538              : 
     539            0 :     let auth_backend = match &args.auth_backend {
     540              :         AuthBackend::Console => {
     541            0 :             let wake_compute_cache_config: CacheOptions = args.wake_compute_cache.parse()?;
     542            0 :             let project_info_cache_config: ProjectInfoCacheOptions =
     543            0 :                 args.project_info_cache.parse()?;
     544            0 :             let endpoint_cache_config: config::EndpointCacheConfig =
     545            0 :                 args.endpoint_cache_config.parse()?;
     546              : 
     547            0 :             info!("Using NodeInfoCache (wake_compute) with options={wake_compute_cache_config:?}");
     548            0 :             info!(
     549            0 :                 "Using AllowedIpsCache (wake_compute) with options={project_info_cache_config:?}"
     550              :             );
     551            0 :             info!("Using EndpointCacheConfig with options={endpoint_cache_config:?}");
     552            0 :             let caches = Box::leak(Box::new(console::caches::ApiCaches::new(
     553            0 :                 wake_compute_cache_config,
     554            0 :                 project_info_cache_config,
     555            0 :                 endpoint_cache_config,
     556            0 :             )));
     557              : 
     558              :             let config::ConcurrencyLockOptions {
     559            0 :                 shards,
     560            0 :                 limiter,
     561            0 :                 epoch,
     562            0 :                 timeout,
     563            0 :             } = args.wake_compute_lock.parse()?;
     564            0 :             info!(?limiter, shards, ?epoch, "Using NodeLocks (wake_compute)");
     565            0 :             let locks = Box::leak(Box::new(console::locks::ApiLocks::new(
     566            0 :                 "wake_compute_lock",
     567            0 :                 limiter,
     568            0 :                 shards,
     569            0 :                 timeout,
     570            0 :                 epoch,
     571            0 :                 &Metrics::get().wake_compute_lock,
     572            0 :             )?));
     573            0 :             tokio::spawn(locks.garbage_collect_worker());
     574              : 
     575            0 :             let url = args.auth_endpoint.parse()?;
     576            0 :             let endpoint = http::Endpoint::new(url, http::new_client());
     577            0 : 
     578            0 :             let mut wake_compute_rps_limit = args.wake_compute_limit.clone();
     579            0 :             RateBucketInfo::validate(&mut wake_compute_rps_limit)?;
     580            0 :             let wake_compute_endpoint_rate_limiter =
     581            0 :                 Arc::new(EndpointRateLimiter::new(wake_compute_rps_limit));
     582            0 :             let api = console::provider::neon::Api::new(
     583            0 :                 endpoint,
     584            0 :                 caches,
     585            0 :                 locks,
     586            0 :                 wake_compute_endpoint_rate_limiter,
     587            0 :             );
     588            0 :             let api = console::provider::ConsoleBackend::Console(api);
     589            0 :             auth::BackendType::Console(MaybeOwned::Owned(api), ())
     590              :         }
     591              :         #[cfg(feature = "testing")]
     592              :         AuthBackend::Postgres => {
     593            0 :             let url = args.auth_endpoint.parse()?;
     594            0 :             let api = console::provider::mock::Api::new(url);
     595            0 :             let api = console::provider::ConsoleBackend::Postgres(api);
     596            0 :             auth::BackendType::Console(MaybeOwned::Owned(api), ())
     597              :         }
     598              :         AuthBackend::Link => {
     599            0 :             let url = args.uri.parse()?;
     600            0 :             auth::BackendType::Link(MaybeOwned::Owned(url), ())
     601              :         }
     602              :     };
     603              : 
     604              :     let config::ConcurrencyLockOptions {
     605            0 :         shards,
     606            0 :         limiter,
     607            0 :         epoch,
     608            0 :         timeout,
     609            0 :     } = args.connect_compute_lock.parse()?;
     610            0 :     info!(
     611              :         ?limiter,
     612              :         shards,
     613              :         ?epoch,
     614            0 :         "Using NodeLocks (connect_compute)"
     615              :     );
     616            0 :     let connect_compute_locks = console::locks::ApiLocks::new(
     617            0 :         "connect_compute_lock",
     618            0 :         limiter,
     619            0 :         shards,
     620            0 :         timeout,
     621            0 :         epoch,
     622            0 :         &Metrics::get().proxy.connect_compute_lock,
     623            0 :     )?;
     624              : 
     625            0 :     let http_config = HttpConfig {
     626            0 :         request_timeout: args.sql_over_http.sql_over_http_timeout,
     627            0 :         pool_options: GlobalConnPoolOptions {
     628            0 :             max_conns_per_endpoint: args.sql_over_http.sql_over_http_pool_max_conns_per_endpoint,
     629            0 :             gc_epoch: args.sql_over_http.sql_over_http_pool_gc_epoch,
     630            0 :             pool_shards: args.sql_over_http.sql_over_http_pool_shards,
     631            0 :             idle_timeout: args.sql_over_http.sql_over_http_idle_timeout,
     632            0 :             opt_in: args.sql_over_http.sql_over_http_pool_opt_in,
     633            0 :             max_total_conns: args.sql_over_http.sql_over_http_pool_max_total_conns,
     634            0 :         },
     635            0 :         cancel_set: CancelSet::new(args.sql_over_http.sql_over_http_cancel_set_shards),
     636            0 :         client_conn_threshold: args.sql_over_http.sql_over_http_client_conn_threshold,
     637            0 :     };
     638            0 :     let authentication_config = AuthenticationConfig {
     639            0 :         thread_pool,
     640            0 :         scram_protocol_timeout: args.scram_protocol_timeout,
     641            0 :         rate_limiter_enabled: args.auth_rate_limit_enabled,
     642            0 :         rate_limiter: AuthRateLimiter::new(args.auth_rate_limit.clone()),
     643            0 :         rate_limit_ip_subnet: args.auth_rate_limit_ip_subnet,
     644            0 :     };
     645            0 : 
     646            0 :     let mut redis_rps_limit = args.redis_rps_limit.clone();
     647            0 :     RateBucketInfo::validate(&mut redis_rps_limit)?;
     648              : 
     649            0 :     let config = Box::leak(Box::new(ProxyConfig {
     650            0 :         tls_config,
     651            0 :         auth_backend,
     652            0 :         metric_collection,
     653            0 :         allow_self_signed_compute: args.allow_self_signed_compute,
     654            0 :         http_config,
     655            0 :         authentication_config,
     656            0 :         require_client_ip: args.require_client_ip,
     657            0 :         disable_ip_check_for_http: args.disable_ip_check_for_http,
     658            0 :         redis_rps_limit,
     659            0 :         handshake_timeout: args.handshake_timeout,
     660            0 :         region: args.region.clone(),
     661            0 :         aws_region: args.aws_region.clone(),
     662            0 :         wake_compute_retry_config: config::RetryConfig::parse(&args.wake_compute_retry)?,
     663            0 :         connect_compute_locks,
     664            0 :         connect_to_compute_retry_config: config::RetryConfig::parse(
     665            0 :             &args.connect_to_compute_retry,
     666            0 :         )?,
     667              :     }));
     668              : 
     669            0 :     tokio::spawn(config.connect_compute_locks.garbage_collect_worker());
     670            0 : 
     671            0 :     Ok(config)
     672            0 : }
     673              : 
     674              : #[cfg(test)]
     675              : mod tests {
     676              :     use std::time::Duration;
     677              : 
     678              :     use clap::Parser;
     679              :     use proxy::rate_limiter::RateBucketInfo;
     680              : 
     681              :     #[test]
     682            2 :     fn parse_endpoint_rps_limit() {
     683            2 :         let config = super::ProxyCliArgs::parse_from([
     684            2 :             "proxy",
     685            2 :             "--endpoint-rps-limit",
     686            2 :             "100@1s",
     687            2 :             "--endpoint-rps-limit",
     688            2 :             "20@30s",
     689            2 :         ]);
     690            2 : 
     691            2 :         assert_eq!(
     692            2 :             config.endpoint_rps_limit,
     693            2 :             vec![
     694            2 :                 RateBucketInfo::new(100, Duration::from_secs(1)),
     695            2 :                 RateBucketInfo::new(20, Duration::from_secs(30)),
     696            2 :             ]
     697            2 :         );
     698            2 :     }
     699              : }
        

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