Files
mcp/internal/config/cli.go
Kyle Isom 8b1c89fdc9 Add mcp build command and deploy auto-build
Extends MCP to own the full build-push-deploy lifecycle. When deploying,
the CLI checks whether each component's image tag exists in the registry
and builds/pushes automatically if missing and build config is present.

- Add Build, Push, ImageExists to runtime.Runtime interface (podman impl)
- Add mcp build <service>[/<image>] command
- Add [build] section to CLI config (workspace path)
- Add path and [build.images] to service definitions
- Wire auto-build into mcp deploy before agent RPC
- Update ARCHITECTURE.md with runtime interface and deploy auto-build docs

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-03-27 01:34:25 -07:00

118 lines
3.0 KiB
Go

package config
import (
"fmt"
"os"
"strings"
toml "github.com/pelletier/go-toml/v2"
)
// CLIConfig is the configuration for the mcp CLI binary.
type CLIConfig struct {
Services ServicesConfig `toml:"services"`
Build BuildConfig `toml:"build"`
MCIAS MCIASConfig `toml:"mcias"`
Auth AuthConfig `toml:"auth"`
Nodes []NodeConfig `toml:"nodes"`
}
// BuildConfig holds settings for building container images.
type BuildConfig struct {
Workspace string `toml:"workspace"`
}
// ServicesConfig defines where service definition files live.
type ServicesConfig struct {
Dir string `toml:"dir"`
}
// MCIASConfig holds MCIAS connection settings, shared by CLI and agent.
type MCIASConfig struct {
ServerURL string `toml:"server_url"`
CACert string `toml:"ca_cert"`
ServiceName string `toml:"service_name"`
}
// AuthConfig holds authentication settings for the CLI.
type AuthConfig struct {
TokenPath string `toml:"token_path"`
Username string `toml:"username"` // optional, for unattended operation
PasswordFile string `toml:"password_file"` // optional, for unattended operation
}
// NodeConfig defines a managed node that the CLI connects to.
type NodeConfig struct {
Name string `toml:"name"`
Address string `toml:"address"`
}
// LoadCLIConfig reads and validates a CLI configuration file.
// Environment variables override file values for select fields.
func LoadCLIConfig(path string) (*CLIConfig, error) {
data, err := os.ReadFile(path) //nolint:gosec // config path from trusted CLI flag
if err != nil {
return nil, fmt.Errorf("read config %q: %w", path, err)
}
var cfg CLIConfig
if err := toml.Unmarshal(data, &cfg); err != nil {
return nil, fmt.Errorf("parse config %q: %w", path, err)
}
applyCLIEnvOverrides(&cfg)
if err := validateCLIConfig(&cfg); err != nil {
return nil, fmt.Errorf("validate config: %w", err)
}
return &cfg, nil
}
func applyCLIEnvOverrides(cfg *CLIConfig) {
if v := os.Getenv("MCP_SERVICES_DIR"); v != "" {
cfg.Services.Dir = v
}
if v := os.Getenv("MCP_BUILD_WORKSPACE"); v != "" {
cfg.Build.Workspace = v
}
if v := os.Getenv("MCP_MCIAS_SERVER_URL"); v != "" {
cfg.MCIAS.ServerURL = v
}
if v := os.Getenv("MCP_MCIAS_CA_CERT"); v != "" {
cfg.MCIAS.CACert = v
}
if v := os.Getenv("MCP_MCIAS_SERVICE_NAME"); v != "" {
cfg.MCIAS.ServiceName = v
}
if v := os.Getenv("MCP_AUTH_TOKEN_PATH"); v != "" {
cfg.Auth.TokenPath = v
}
}
func validateCLIConfig(cfg *CLIConfig) error {
if cfg.Services.Dir == "" {
return fmt.Errorf("services.dir is required")
}
if cfg.MCIAS.ServerURL == "" {
return fmt.Errorf("mcias.server_url is required")
}
if cfg.MCIAS.ServiceName == "" {
return fmt.Errorf("mcias.service_name is required")
}
if cfg.Auth.TokenPath == "" {
return fmt.Errorf("auth.token_path is required")
}
// Expand ~ in workspace path.
if strings.HasPrefix(cfg.Build.Workspace, "~/") {
home, err := os.UserHomeDir()
if err != nil {
return fmt.Errorf("expand workspace path: %w", err)
}
cfg.Build.Workspace = home + cfg.Build.Workspace[1:]
}
return nil
}