feat(config)!: Remove ambiguity from CLI config (#1010)

* feat(config)!: get rid of ambiguity in MongoDB args

* remove retries

* remove feature flag

* Fix integration tests

Co-authored-by: /alex/ <alexander.schmidt@iota.org>

.github/workflows/_test_int.yml

@@ -45,6 +45,8 @@ jobs:
           #mongodb-replica-set: test-rs
 
       - name: Test DB
+        env:
+          MONGODB_CONN_STR: mongodb://root:root@localhost:27017
         uses: actions-rs/cargo@v1
         with:
           command: ci-test-int

docker/docker-compose.yml

@@ -18,8 +18,6 @@ services:
     depends_on:
       influx:
         condition: service_started
-      mongo:
-        condition: service_started
       hornet:
         condition: service_healthy
     build:
@@ -30,10 +28,13 @@ services:
       - "8042:8042/tcp" # REST API
       - "9100:9100/tcp" # Metrics
     tty: true
+    deploy:
+      restart_policy:
+        condition: on-failure
+        delay: 5s
+        max_attempts: 3
     command:
-      - "--mongodb-conn-str=mongodb://mongo:27017"
-      - "--mongodb-username=${MONGODB_USERNAME}"
-      - "--mongodb-password=${MONGODB_PASSWORD}"
+      - "--mongodb-conn-str=${MONGODB_CONN_STR}"
       - "--influxdb-url=http://influx:8086"
       - "--influxdb-username=${INFLUXDB_USERNAME}"
       - "--influxdb-password=${INFLUXDB_PASSWORD}"

src/bin/inx-chronicle/cli.rs

@@ -41,28 +41,16 @@ pub struct MongoDbArgs {
         default_value = mongodb::DEFAULT_CONN_STR,
     )]
     pub mongodb_conn_str: String,
-    /// The MongoDb username.
-    #[arg(long, value_name = "USERNAME", env = "MONGODB_USERNAME", default_value = mongodb::DEFAULT_USERNAME)]
-    pub mongodb_username: String,
-    /// The MongoDb password.
-    #[arg(long, value_name = "PASSWORD", env = "MONGODB_PASSWORD", default_value = mongodb::DEFAULT_PASSWORD)]
-    pub mongodb_password: String,
     /// The MongoDb database name.
     #[arg(long, value_name = "NAME", default_value = mongodb::DEFAULT_DATABASE_NAME)]
     pub mongodb_database_name: String,
-    /// The MongoDb minimum pool size.
-    #[arg(long, value_name = "SIZE", default_value_t = mongodb::DEFAULT_MIN_POOL_SIZE)]
-    pub mongodb_min_pool_size: u32,
 }
 
 impl From<&MongoDbArgs> for chronicle::db::MongoDbConfig {
     fn from(value: &MongoDbArgs) -> Self {
         Self {
             conn_str: value.mongodb_conn_str.clone(),
-            username: value.mongodb_username.clone(),
-            password: value.mongodb_password.clone(),
             database_name: value.mongodb_database_name.clone(),
-            min_pool_size: value.mongodb_min_pool_size,
         }
     }
 }
@@ -128,12 +116,6 @@ pub struct InxArgs {
     /// The address of the node INX interface Chronicle tries to connect to - if enabled.
     #[arg(long, value_name = "URL", default_value = inx::DEFAULT_URL)]
     pub inx_url: String,
-    /// Time to wait until a new connection attempt is made.
-    #[arg(long, value_name = "DURATION", value_parser = parse_duration, default_value = inx::DEFAULT_RETRY_INTERVAL)]
-    pub inx_retry_interval: std::time::Duration,
-    /// Maximum number of tries to establish an INX connection.
-    #[arg(long, value_name = "COUNT", default_value_t = inx::DEFAULT_RETRY_COUNT)]
-    pub inx_retry_count: usize,
     /// Milestone at which synchronization should begin. If set to `1` Chronicle will try to sync back until the
     /// genesis block. If set to `0` Chronicle will start syncing from the most recent milestone it received.
     #[arg(long, value_name = "START", default_value_t = inx::DEFAULT_SYNC_START)]
@@ -149,8 +131,6 @@ impl From<&InxArgs> for inx::InxConfig {
         Self {
             enabled: !value.disable_inx,
             url: value.inx_url.clone(),
-            conn_retry_interval: value.inx_retry_interval,
-            conn_retry_count: value.inx_retry_count,
             sync_start_milestone: value.inx_sync_start.into(),
         }
     }
@@ -216,7 +196,7 @@ pub struct JwtArgs {
     pub jwt_expiration: std::time::Duration,
 }
 
-#[cfg(any(feature = "inx", feature = "api"))]
+#[cfg(feature = "api")]
 fn parse_duration(arg: &str) -> Result<std::time::Duration, humantime::DurationError> {
     arg.parse::<humantime::Duration>().map(Into::into)
 }

src/bin/inx-chronicle/config.rs

@@ -2,11 +2,9 @@
 // SPDX-License-Identifier: Apache-2.0
 
 use chronicle::db::MongoDbConfig;
-use serde::{Deserialize, Serialize};
 
 /// Configuration of Chronicle.
-#[derive(Clone, Default, Debug, PartialEq, Eq, Serialize, Deserialize)]
-#[serde(default)]
+#[derive(Clone, Default, Debug)]
 pub struct ChronicleConfig {
     pub mongodb: MongoDbConfig,
     #[cfg(any(feature = "analytics", feature = "metrics"))]

src/bin/inx-chronicle/stardust_inx/config.rs

@@ -1,29 +1,18 @@
 // Copyright 2022 IOTA Stiftung
 // SPDX-License-Identifier: Apache-2.0
 
-use std::time::Duration;
-
 use chronicle::types::tangle::MilestoneIndex;
-use serde::{Deserialize, Serialize};
 
 pub const DEFAULT_ENABLED: bool = true;
 pub const DEFAULT_URL: &str = "http://localhost:9029";
-pub const DEFAULT_RETRY_INTERVAL: &str = "5s";
-pub const DEFAULT_RETRY_COUNT: usize = 30;
 pub const DEFAULT_SYNC_START: u32 = 0;
 
 /// Configuration for an INX connection.
-#[derive(Clone, PartialEq, Eq, Debug, Serialize, Deserialize)]
-#[serde(default, deny_unknown_fields)]
+#[derive(Clone, Debug)]
 pub struct InxConfig {
     pub enabled: bool,
     /// The bind address of node's INX interface.
     pub url: String,
-    /// The time that has to pass until a new connection attempt is made.
-    #[serde(with = "humantime_serde")]
-    pub conn_retry_interval: Duration,
-    /// The number of retries when connecting fails.
-    pub conn_retry_count: usize,
     /// The milestone at which synchronization should begin.
     pub sync_start_milestone: MilestoneIndex,
 }
@@ -33,8 +22,6 @@ impl Default for InxConfig {
         Self {
             enabled: DEFAULT_ENABLED,
             url: DEFAULT_URL.to_string(),
-            conn_retry_interval: DEFAULT_RETRY_INTERVAL.parse::<humantime::Duration>().unwrap().into(),
-            conn_retry_count: DEFAULT_RETRY_COUNT,
             sync_start_milestone: DEFAULT_SYNC_START.into(),
         }
     }

src/bin/inx-chronicle/stardust_inx/error.rs

@@ -1,16 +1,16 @@
 // Copyright 2022 IOTA Stiftung
 // SPDX-License-Identifier: Apache-2.0
 
-use chronicle::types::tangle::MilestoneIndex;
+use chronicle::{inx::InxError, types::tangle::MilestoneIndex};
 use thiserror::Error;
 
 #[derive(Debug, Error)]
 pub enum InxWorkerError {
     #[cfg(feature = "analytics")]
     #[error("Analytics error: {0}")]
     Analytics(#[from] chronicle::db::collections::analytics::Error),
-    #[error("failed to establish connection")]
-    ConnectionError,
+    #[error("failed to establish connection: {0}")]
+    ConnectionError(#[from] InxError),
     #[cfg(any(feature = "analytics", feature = "metrics"))]
     #[error("InfluxDb error: {0}")]
     InfluxDb(#[from] influxdb::Error),

src/bin/inx-chronicle/stardust_inx/mod.rs

@@ -21,10 +21,10 @@ use chronicle::{
         tangle::MilestoneIndex,
     },
 };
-use eyre::{bail, eyre, Result};
+use eyre::{bail, Result};
 use futures::{StreamExt, TryStreamExt};
 use tokio::{task::JoinSet, try_join};
-use tracing::{debug, info, instrument, trace, trace_span, warn, Instrument};
+use tracing::{debug, info, instrument, trace, trace_span, Instrument};
 
 pub use self::{config::InxConfig, error::InxWorkerError};
 
@@ -102,20 +102,7 @@ impl InxWorker {
             bail!(InxWorkerError::InvalidAddress(self.config.url.clone()));
         }
 
-        for i in 0..self.config.conn_retry_count {
-            match Inx::connect(self.config.url.clone()).await {
-                Ok(inx_client) => return Ok(inx_client),
-                Err(_) => {
-                    warn!(
-                        "INX connection failed. Retrying in {}s. {} retries remaining.",
-                        self.config.conn_retry_interval.as_secs(),
-                        self.config.conn_retry_count - i
-                    );
-                    tokio::time::sleep(self.config.conn_retry_interval).await;
-                }
-            }
-        }
-        Err(eyre!(InxWorkerError::ConnectionError))
+        Ok(Inx::connect(self.config.url.clone()).await?)
     }
 
     pub async fn run(&mut self) -> Result<()> {

src/db/influxdb/config.rs

@@ -3,8 +3,6 @@
 
 //! Holds the `InfluxDb` config and its defaults.
 
-use serde::{Deserialize, Serialize};
-
 /// The default InfluxDb URL to connect to.
 pub const DEFAULT_URL: &str = "http://localhost:8086";
 /// The default InfluxDb username.
@@ -26,8 +24,7 @@ pub const DEFAULT_METRICS_DATABASE_NAME: &str = "chronicle_metrics";
 
 /// The influxdb [`influxdb::Client`] config.
 #[must_use]
-#[derive(Clone, PartialEq, Eq, Debug, Serialize, Deserialize)]
-#[serde(default, deny_unknown_fields)]
+#[derive(Clone, PartialEq, Eq, Debug)]
 pub struct InfluxDbConfig {
     /// The address of the InfluxDb instance.
     pub url: String,

src/db/mongodb/config.rs

@@ -7,34 +7,20 @@ use mongodb::{
     error::Error,
     options::{ConnectionString, HostInfo},
 };
-use serde::{Deserialize, Serialize};
 
 /// The default connection string of the database.
 pub const DEFAULT_CONN_STR: &str = "mongodb://localhost:27017";
-/// The default MongoDB username.
-pub const DEFAULT_USERNAME: &str = "root";
-/// The default MongoDB password.
-pub const DEFAULT_PASSWORD: &str = "root";
 /// The default name of the database to connect to.
 pub const DEFAULT_DATABASE_NAME: &str = "chronicle";
-/// The default minimum amount of connections in the pool.
-pub const DEFAULT_MIN_POOL_SIZE: u32 = 2;
 
 /// The [`super::MongoDb`] config.
 #[must_use]
-#[derive(Clone, PartialEq, Eq, Debug, Serialize, Deserialize)]
-#[serde(default, deny_unknown_fields)]
+#[derive(Clone, PartialEq, Eq, Debug)]
 pub struct MongoDbConfig {
     /// The connection string of the database.
     pub conn_str: String,
-    /// The MongoDB username.
-    pub username: String,
-    /// The MongoDB password.
-    pub password: String,
     /// The name of the database to connect to.
     pub database_name: String,
-    /// The minimum amount of connections in the pool.
-    pub min_pool_size: u32,
 }
 
 impl MongoDbConfig {
@@ -53,10 +39,7 @@ impl Default for MongoDbConfig {
     fn default() -> Self {
         Self {
             conn_str: DEFAULT_CONN_STR.to_string(),
-            username: DEFAULT_USERNAME.to_string(),
-            password: DEFAULT_PASSWORD.to_string(),
             database_name: DEFAULT_DATABASE_NAME.to_string(),
-            min_pool_size: DEFAULT_MIN_POOL_SIZE,
         }
     }
 }

src/db/mongodb/mod.rs

@@ -12,7 +12,7 @@ use config::MongoDbConfig;
 use mongodb::{
     bson::{doc, Document},
     error::Error,
-    options::{ClientOptions, Credential},
+    options::ClientOptions,
     Client,
 };
 
@@ -33,15 +33,6 @@ impl MongoDb {
         let mut client_options = ClientOptions::parse(&config.conn_str).await?;
 
         client_options.app_name = Some("Chronicle".to_string());
-        client_options.min_pool_size = Some(config.min_pool_size);
-
-        if client_options.credential.is_none() {
-            let credential = Credential::builder()
-                .username(config.username.clone())
-                .password(config.password.clone())
-                .build();
-            client_options.credential = Some(credential);
-        }
 
         let client = Client::with_options(client_options)?;
 

tests/common/mod.rs

@@ -15,12 +15,6 @@ pub async fn setup_database(database_name: impl ToString) -> eyre::Result<MongoD
     if let Ok(conn_str) = std::env::var("MONGODB_CONN_STR") {
         test_config.conn_str = conn_str;
     };
-    if let Ok(username) = std::env::var("MONGODB_USERNAME") {
-        test_config.username = username;
-    };
-    if let Ok(password) = std::env::var("MONGODB_PASSWORD") {
-        test_config.password = password;
-    };
 
     let db = MongoDb::connect(&test_config).await?;
     db.clear().await?;