feat: Implement SSH Agent Connector and gRPC server

- Added `AgentConnectorTrait` and `AgentConnector` for managing agent connections.
- Introduced `SshAgentConnector` to handle SSH-related functionalities and start a gRPC server.
- Created database entities for `agents`, `certificates`, `organizations`, `public_key_revocations`, `setup_tokens`, `upstreams`, `users`, `virtual_hosts`, and `workspaces` using SeaORM.
- Developed `CertificateService` for managing certificate generation and retrieval.
- Implemented the main server logic to initialize the database connection and start the agent server.
- Configured development settings in `development.toml` for server and database connections.

apps/nxmesh-master/src/db/entities/agents.rs

@@ -0,0 +1,27 @@
+//! `SeaORM` Entity, @generated by sea-orm-codegen 2.0
+
+use sea_orm::entity::prelude::*;
+use serde::{Deserialize, Serialize};
+
+#[derive(Clone, Debug, PartialEq, Eq, DeriveEntityModel, Serialize, Deserialize)]
+#[sea_orm(table_name = "agents")]
+pub struct Model {
+    #[sea_orm(primary_key, auto_increment = false)]
+    pub id: Uuid,
+    pub name: String,
+    pub ip_address: Option<String>,
+    pub version: Option<String>,
+    pub state: String,
+    pub deployment_mode: Option<String>,
+    pub last_seen_at: Option<DateTimeWithTimeZone>,
+    pub capabilities: Option<Json>,
+    pub public_key_hash: Option<String>,
+    pub labels: Option<Json>,
+    pub created_at: DateTimeWithTimeZone,
+    pub updated_at: DateTimeWithTimeZone,
+}
+
+#[derive(Copy, Clone, Debug, EnumIter, DeriveRelation)]
+pub enum Relation {}
+
+impl ActiveModelBehavior for ActiveModel {}

apps/nxmesh-master/src/db/entities/certificates.rs

@@ -0,0 +1,45 @@
+//! `SeaORM` Entity, @generated by sea-orm-codegen 2.0
+
+use sea_orm::entity::prelude::*;
+use serde::{Deserialize, Serialize};
+
+#[derive(Clone, Debug, PartialEq, Eq, DeriveEntityModel, Serialize, Deserialize)]
+#[sea_orm(table_name = "certificates")]
+pub struct Model {
+    #[sea_orm(primary_key, auto_increment = false)]
+    pub id: Uuid,
+    pub workspace_id: Uuid,
+    pub domain: String,
+    pub is_wildcard: bool,
+    pub provider: Option<String>,
+    pub status: Option<String>,
+    pub issued_at: Option<DateTimeWithTimeZone>,
+    pub expires_at: Option<DateTimeWithTimeZone>,
+    pub auto_renew: bool,
+    #[sea_orm(column_type = "Text", nullable)]
+    pub certificate_pem: Option<String>,
+    #[sea_orm(column_type = "Text", nullable)]
+    pub private_key_pem: Option<String>,
+    pub created_at: DateTimeWithTimeZone,
+    pub updated_at: DateTimeWithTimeZone,
+}
+
+#[derive(Copy, Clone, Debug, EnumIter, DeriveRelation)]
+pub enum Relation {
+    #[sea_orm(
+        belongs_to = "super::workspaces::Entity",
+        from = "Column::WorkspaceId",
+        to = "super::workspaces::Column::Id",
+        on_update = "NoAction",
+        on_delete = "Cascade"
+    )]
+    Workspaces,
+}
+
+impl Related<super::workspaces::Entity> for Entity {
+    fn to() -> RelationDef {
+        Relation::Workspaces.def()
+    }
+}
+
+impl ActiveModelBehavior for ActiveModel {}

apps/nxmesh-master/src/db/entities/mod.rs

@@ -0,0 +1,6 @@
+//! `SeaORM` Entity, @generated by sea-orm-codegen 2.0
+
+pub mod prelude;
+
+pub mod agents;
+pub mod public_key_revocations;

apps/nxmesh-master/src/db/entities/organizations.rs

@@ -0,0 +1,39 @@
+//! `SeaORM` Entity, @generated by sea-orm-codegen 2.0
+
+use sea_orm::entity::prelude::*;
+use serde::{Deserialize, Serialize};
+
+#[derive(Clone, Debug, PartialEq, Eq, DeriveEntityModel, Serialize, Deserialize)]
+#[sea_orm(table_name = "organizations")]
+pub struct Model {
+    #[sea_orm(primary_key, auto_increment = false)]
+    pub id: Uuid,
+    pub name: String,
+    #[sea_orm(unique)]
+    pub slug: String,
+    pub created_at: DateTimeWithTimeZone,
+    pub updated_at: DateTimeWithTimeZone,
+    pub settings: Option<Json>,
+}
+
+#[derive(Copy, Clone, Debug, EnumIter, DeriveRelation)]
+pub enum Relation {
+    #[sea_orm(has_many = "super::users::Entity")]
+    Users,
+    #[sea_orm(has_many = "super::workspaces::Entity")]
+    Workspaces,
+}
+
+impl Related<super::users::Entity> for Entity {
+    fn to() -> RelationDef {
+        Relation::Users.def()
+    }
+}
+
+impl Related<super::workspaces::Entity> for Entity {
+    fn to() -> RelationDef {
+        Relation::Workspaces.def()
+    }
+}
+
+impl ActiveModelBehavior for ActiveModel {}

apps/nxmesh-master/src/db/entities/prelude.rs

@@ -0,0 +1,4 @@
+//! `SeaORM` Entity, @generated by sea-orm-codegen 2.0
+
+pub use super::agents::Entity as Agents;
+pub use super::public_key_revocations::Entity as PublicKeyRevocations;

apps/nxmesh-master/src/db/entities/public_key_revocations.rs

@@ -0,0 +1,18 @@
+//! `SeaORM` Entity, @generated by sea-orm-codegen 2.0
+
+use sea_orm::entity::prelude::*;
+use serde::{Deserialize, Serialize};
+
+#[derive(Clone, Debug, PartialEq, Eq, DeriveEntityModel, Serialize, Deserialize)]
+#[sea_orm(table_name = "public_key_revocations")]
+pub struct Model {
+    #[sea_orm(primary_key, auto_increment = false)]
+    pub id: Uuid,
+    pub public_key_hash: String,
+    pub created_at: DateTimeWithTimeZone,
+}
+
+#[derive(Copy, Clone, Debug, EnumIter, DeriveRelation)]
+pub enum Relation {}
+
+impl ActiveModelBehavior for ActiveModel {}

apps/nxmesh-master/src/db/entities/setup_tokens.rs

@@ -0,0 +1,21 @@
+//! `SeaORM` Entity, @generated by sea-orm-codegen 2.0
+
+use sea_orm::entity::prelude::*;
+use serde::{Deserialize, Serialize};
+
+#[derive(Clone, Debug, PartialEq, Eq, DeriveEntityModel, Serialize, Deserialize)]
+#[sea_orm(table_name = "setup_tokens")]
+pub struct Model {
+    #[sea_orm(primary_key, auto_increment = false)]
+    pub id: Uuid,
+    #[sea_orm(unique)]
+    pub token_hash: String,
+    pub expires_at: DateTimeWithTimeZone,
+    pub used_at: Option<DateTimeWithTimeZone>,
+    pub created_at: DateTimeWithTimeZone,
+}
+
+#[derive(Copy, Clone, Debug, EnumIter, DeriveRelation)]
+pub enum Relation {}
+
+impl ActiveModelBehavior for ActiveModel {}

apps/nxmesh-master/src/db/entities/upstreams.rs

@@ -0,0 +1,40 @@
+//! `SeaORM` Entity, @generated by sea-orm-codegen 2.0
+
+use sea_orm::entity::prelude::*;
+use serde::{Deserialize, Serialize};
+
+#[derive(Clone, Debug, PartialEq, Eq, DeriveEntityModel, Serialize, Deserialize)]
+#[sea_orm(table_name = "upstreams")]
+pub struct Model {
+    #[sea_orm(primary_key, auto_increment = false)]
+    pub id: Uuid,
+    pub workspace_id: Uuid,
+    pub name: String,
+    pub algorithm: String,
+    pub servers: Option<Json>,
+    pub health_check: Option<Json>,
+    pub keepalive_connections: Option<i32>,
+    pub keepalive_timeout: Option<i32>,
+    pub created_at: DateTimeWithTimeZone,
+    pub updated_at: DateTimeWithTimeZone,
+}
+
+#[derive(Copy, Clone, Debug, EnumIter, DeriveRelation)]
+pub enum Relation {
+    #[sea_orm(
+        belongs_to = "super::workspaces::Entity",
+        from = "Column::WorkspaceId",
+        to = "super::workspaces::Column::Id",
+        on_update = "NoAction",
+        on_delete = "Cascade"
+    )]
+    Workspaces,
+}
+
+impl Related<super::workspaces::Entity> for Entity {
+    fn to() -> RelationDef {
+        Relation::Workspaces.def()
+    }
+}
+
+impl ActiveModelBehavior for ActiveModel {}

apps/nxmesh-master/src/db/entities/users.rs

@@ -0,0 +1,39 @@
+//! `SeaORM` Entity, @generated by sea-orm-codegen 2.0
+
+use sea_orm::entity::prelude::*;
+use serde::{Deserialize, Serialize};
+
+#[derive(Clone, Debug, PartialEq, Eq, DeriveEntityModel, Serialize, Deserialize)]
+#[sea_orm(table_name = "users")]
+pub struct Model {
+    #[sea_orm(primary_key, auto_increment = false)]
+    pub id: Uuid,
+    #[sea_orm(unique)]
+    pub email: String,
+    pub password_hash: String,
+    pub name: Option<String>,
+    pub role: String,
+    pub organization_id: Option<Uuid>,
+    pub created_at: DateTimeWithTimeZone,
+    pub updated_at: DateTimeWithTimeZone,
+}
+
+#[derive(Copy, Clone, Debug, EnumIter, DeriveRelation)]
+pub enum Relation {
+    #[sea_orm(
+        belongs_to = "super::organizations::Entity",
+        from = "Column::OrganizationId",
+        to = "super::organizations::Column::Id",
+        on_update = "NoAction",
+        on_delete = "SetNull"
+    )]
+    Organizations,
+}
+
+impl Related<super::organizations::Entity> for Entity {
+    fn to() -> RelationDef {
+        Relation::Organizations.def()
+    }
+}
+
+impl ActiveModelBehavior for ActiveModel {}

apps/nxmesh-master/src/db/entities/virtual_hosts.rs

@@ -0,0 +1,44 @@
+//! `SeaORM` Entity, @generated by sea-orm-codegen 2.0
+
+use sea_orm::entity::prelude::*;
+use serde::{Deserialize, Serialize};
+
+#[derive(Clone, Debug, PartialEq, Eq, DeriveEntityModel, Serialize, Deserialize)]
+#[sea_orm(table_name = "virtual_hosts")]
+pub struct Model {
+    #[sea_orm(primary_key, auto_increment = false)]
+    pub id: Uuid,
+    pub workspace_id: Uuid,
+    pub name: String,
+    pub server_name: String,
+    pub listen_port: i32,
+    pub ssl_enabled: bool,
+    pub ssl_certificate_id: Option<Uuid>,
+    pub locations: Option<Json>,
+    pub http2_enabled: bool,
+    pub http3_enabled: bool,
+    pub gzip_enabled: bool,
+    pub target_agents: Option<Json>,
+    pub created_at: DateTimeWithTimeZone,
+    pub updated_at: DateTimeWithTimeZone,
+}
+
+#[derive(Copy, Clone, Debug, EnumIter, DeriveRelation)]
+pub enum Relation {
+    #[sea_orm(
+        belongs_to = "super::workspaces::Entity",
+        from = "Column::WorkspaceId",
+        to = "super::workspaces::Column::Id",
+        on_update = "NoAction",
+        on_delete = "Cascade"
+    )]
+    Workspaces,
+}
+
+impl Related<super::workspaces::Entity> for Entity {
+    fn to() -> RelationDef {
+        Relation::Workspaces.def()
+    }
+}
+
+impl ActiveModelBehavior for ActiveModel {}

apps/nxmesh-master/src/db/entities/workspaces.rs

@@ -0,0 +1,70 @@
+//! `SeaORM` Entity, @generated by sea-orm-codegen 2.0
+
+use sea_orm::entity::prelude::*;
+use serde::{Deserialize, Serialize};
+
+#[derive(Clone, Debug, PartialEq, Eq, DeriveEntityModel, Serialize, Deserialize)]
+#[sea_orm(table_name = "workspaces")]
+pub struct Model {
+    #[sea_orm(primary_key, auto_increment = false)]
+    pub id: Uuid,
+    #[sea_orm(unique_key = "idx_workspaces_org_slug")]
+    pub organization_id: Uuid,
+    pub name: String,
+    #[sea_orm(unique_key = "idx_workspaces_org_slug")]
+    pub slug: String,
+    pub created_at: DateTimeWithTimeZone,
+    pub updated_at: DateTimeWithTimeZone,
+}
+
+#[derive(Copy, Clone, Debug, EnumIter, DeriveRelation)]
+pub enum Relation {
+    #[sea_orm(has_many = "super::agents::Entity")]
+    Agents,
+    #[sea_orm(has_many = "super::certificates::Entity")]
+    Certificates,
+    #[sea_orm(
+        belongs_to = "super::organizations::Entity",
+        from = "Column::OrganizationId",
+        to = "super::organizations::Column::Id",
+        on_update = "NoAction",
+        on_delete = "Cascade"
+    )]
+    Organizations,
+    #[sea_orm(has_many = "super::upstreams::Entity")]
+    Upstreams,
+    #[sea_orm(has_many = "super::virtual_hosts::Entity")]
+    VirtualHosts,
+}
+
+impl Related<super::agents::Entity> for Entity {
+    fn to() -> RelationDef {
+        Relation::Agents.def()
+    }
+}
+
+impl Related<super::certificates::Entity> for Entity {
+    fn to() -> RelationDef {
+        Relation::Certificates.def()
+    }
+}
+
+impl Related<super::organizations::Entity> for Entity {
+    fn to() -> RelationDef {
+        Relation::Organizations.def()
+    }
+}
+
+impl Related<super::upstreams::Entity> for Entity {
+    fn to() -> RelationDef {
+        Relation::Upstreams.def()
+    }
+}
+
+impl Related<super::virtual_hosts::Entity> for Entity {
+    fn to() -> RelationDef {
+        Relation::VirtualHosts.def()
+    }
+}
+
+impl ActiveModelBehavior for ActiveModel {}

apps/nxmesh-master/src/db/mod.rs

@@ -0,0 +1,11 @@
+use sea_orm::{Database, DatabaseConnection};
+
+pub mod entities;
+
+pub(crate) async fn establish_connection(
+    url: &str,
+) -> Result<DatabaseConnection, Box<dyn std::error::Error + Send + Sync>> {
+    Database::connect(url)
+        .await
+        .map_err(|e| format!("Failed to connect to database: {}", e).into())
+}