This repository has been archived on 2026-03-09. You can view files and clone it. You cannot open issues or pull requests or push a commit.
Files
homelab-deploy/internal/mcp/server.go
Torjus Håkestad 14f5b31faf feat: add builder mode for centralized Nix builds
Add a new "builder" capability to trigger Nix builds on a dedicated
build host via NATS messaging. This allows pre-building NixOS
configurations before deployment.

New components:
- Builder mode: subscribes to build.<repo>.* subjects, executes nix build
- Build CLI command: triggers builds with progress tracking
- MCP build tool: available with --enable-builds flag
- Builder metrics: tracks build success/failure per repo and host
- NixOS module: services.homelab-deploy.builder

The builder uses a YAML config file to define allowed repositories
with their URLs and default branches. Builds can target all hosts
or specific hosts, with real-time progress updates.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
2026-02-10 22:03:14 +01:00

68 lines
1.4 KiB
Go

package mcp
import (
"time"
"github.com/mark3labs/mcp-go/server"
)
// ServerConfig holds configuration for the MCP server.
type ServerConfig struct {
NATSUrl string
NKeyFile string
EnableAdmin bool
AdminNKeyFile string
EnableBuilds bool
DiscoverSubject string
Timeout time.Duration
}
// Server wraps the MCP server.
type Server struct {
cfg ServerConfig
server *server.MCPServer
}
// New creates a new MCP server.
func New(cfg ServerConfig) *Server {
s := server.NewMCPServer(
"homelab-deploy",
"0.1.0",
server.WithToolCapabilities(true),
)
handler := NewToolHandler(ToolConfig{
NATSUrl: cfg.NATSUrl,
NKeyFile: cfg.NKeyFile,
AdminNKeyFile: cfg.AdminNKeyFile,
DiscoverSubject: cfg.DiscoverSubject,
Timeout: cfg.Timeout,
})
// Register deploy tool (test-tier only)
s.AddTool(DeployTool(), handler.HandleDeploy)
// Register list_hosts tool
s.AddTool(ListHostsTool(), handler.HandleListHosts)
// Optionally register admin deploy tool
if cfg.EnableAdmin {
s.AddTool(DeployAdminTool(), handler.HandleDeployAdmin)
}
// Optionally register build tool
if cfg.EnableBuilds {
s.AddTool(BuildTool(), handler.HandleBuild)
}
return &Server{
cfg: cfg,
server: s,
}
}
// Run starts the MCP server and blocks until completed.
func (s *Server) Run() error {
return server.ServeStdio(s.server)
}