Add S3 bucket configuration

geneit_backend/src/app_config.rs

@@ -1,4 +1,6 @@
 use clap::Parser;
+use s3::creds::Credentials;
+use s3::{Bucket, Region};
 
 /// GeneIT backend API
 #[derive(Parser, Debug, Clone)]
@@ -115,6 +117,30 @@ pub struct AppConfig {
     /// OpenID login redirect URL
     #[arg(long, env, default_value = "APP_ORIGIN/oidc_cb")]
     oidc_redirect_url: String,
+
+    /// S3 Bucket name
+    #[arg(long, env, default_value = "geneit-data")]
+    s3_bucket_name: String,
+
+    /// S3 region (if not using Minio)
+    #[arg(long, env, default_value = "eu-central-1")]
+    s3_region: String,
+
+    /// S3 API endpoint
+    #[arg(long, env, default_value = "http://localhost:9000")]
+    s3_endpoint: String,
+
+    /// S3 access key
+    #[arg(long, env, default_value = "topsecret")]
+    s3_access_key: String,
+
+    /// S3 secret key
+    #[arg(long, env, default_value = "topsecret")]
+    s3_secret_key: String,
+
+    /// S3 skip auto create bucket if not existing
+    #[arg(long, env)]
+    pub s3_skip_auto_create_bucket: bool,
 }
 
 lazy_static::lazy_static! {
@@ -183,6 +209,30 @@ impl AppConfig {
         self.oidc_redirect_url
             .replace("APP_ORIGIN", &self.website_origin)
     }
+
+    /// Get s3 credentials
+    pub fn s3_credentials(&self) -> anyhow::Result<Credentials> {
+        Ok(Credentials::new(
+            Some(&self.s3_access_key),
+            Some(&self.s3_secret_key),
+            None,
+            None,
+            None,
+        )?)
+    }
+
+    /// Get S3 bucket
+    pub fn s3_bucket(&self) -> anyhow::Result<Bucket> {
+        Ok(Bucket::new(
+            &self.s3_bucket_name,
+            Region::Custom {
+                region: self.s3_region.to_string(),
+                endpoint: self.s3_endpoint.to_string(),
+            },
+            self.s3_credentials()?,
+        )?
+        .with_path_style())
+    }
 }
 
 #[derive(Debug, Clone, serde::Serialize)]