feat: update database configuration to support SSL and add max connections setting

Author: LuggaPugga

apps/backend/.env.example

@@ -1,4 +1,5 @@
-DATABASE_URL=postgres://user:password@localhost:5432/sourcemaps
+DATABASE_URL=postgres://user:password@localhost:5432/sourcemaps?sslmode=require
+DATABASE_MAX_CONNECTIONS=3
 FILE_ENCRYPTION_KEY=0000000000000000000000000000000000000000000000000000000000000000
 APIKEY_ENCRYPTION_KEY=1111111111111111111111111111111111111111111111111111111111111111
 S3_BUCKET=

apps/backend/Cargo.lock

@@ -14,7 +14,7 @@ rand = "0.9.1"
 serde = { version = "1.0.228", features = ["derive"] }
 serde_json = "1.0.140"
 sourcemap = "9.3.2"
-sqlx = { version = "0.8.6", features = ["runtime-tokio", "postgres", "uuid"] }
+sqlx = { version = "0.8.6", features = ["runtime-tokio", "tls-native-tls", "postgres", "uuid"] }
 thiserror = "2.0.12"
 tokio = { version = "1.47.1", features = ["macros", "rt-multi-thread", "signal"] }
 tower-http = { version = "0.6.6", features = ["cors", "trace"] }

apps/backend/Cargo.toml

@@ -3,6 +3,7 @@ use std::net::SocketAddr;
 #[derive(Clone)]
 pub struct Config {
     pub database_url: String,
+    pub database_max_connections: u32,
     pub file_encryption_key: String,
     pub apikey_encryption_key: String,
     pub s3_bucket: String,
@@ -30,6 +31,10 @@ impl Config {
 
         Ok(Self {
             database_url: std::env::var("DATABASE_URL")?,
+            database_max_connections: std::env::var("DATABASE_MAX_CONNECTIONS")
+                .unwrap_or_else(|_| "3".into())
+                .parse()
+                .expect("DATABASE_MAX_CONNECTIONS must be a valid u32"),
             file_encryption_key: std::env::var("FILE_ENCRYPTION_KEY")
                 .or_else(|_| std::env::var("ENCRYPTION_KEY"))?,
             apikey_encryption_key: std::env::var("APIKEY_ENCRYPTION_KEY")

apps/backend/src/config.rs

@@ -71,10 +71,11 @@ async fn build_state(config: &Config) -> AppState {
         Crypto::new(&config.apikey_encryption_key).expect("invalid APIKEY_ENCRYPTION_KEY"),
     );
     let db = PgPoolOptions::new()
-        .max_connections(10)
+        .max_connections(config.database_max_connections)
         .connect(&config.database_url)
         .await
         .expect("failed to connect to database");
+    info!("connected to postgres");
     let s3_client = s3_client(config);
     let storage = Storage::new(s3_client, config.s3_bucket.clone(), file_crypto.clone());