Torjus Håkestad
14f5b31faf
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>
66 lines
1.4 KiB
Go
66 lines
1.4 KiB
Go
package builder
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import (
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"fmt"
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"os"
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"gopkg.in/yaml.v3"
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)
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// RepoConfig holds configuration for a single repository.
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type RepoConfig struct {
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URL string `yaml:"url"`
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DefaultBranch string `yaml:"default_branch"`
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}
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// Config holds the builder configuration.
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type Config struct {
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Repos map[string]RepoConfig `yaml:"repos"`
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}
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// LoadConfig loads configuration from a YAML file.
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func LoadConfig(path string) (*Config, error) {
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data, err := os.ReadFile(path)
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if err != nil {
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return nil, fmt.Errorf("failed to read config file: %w", err)
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}
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var cfg Config
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if err := yaml.Unmarshal(data, &cfg); err != nil {
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return nil, fmt.Errorf("failed to parse config file: %w", err)
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}
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if err := cfg.Validate(); err != nil {
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return nil, err
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}
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return &cfg, nil
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}
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// Validate checks that the configuration is valid.
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func (c *Config) Validate() error {
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if len(c.Repos) == 0 {
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return fmt.Errorf("no repos configured")
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}
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for name, repo := range c.Repos {
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if repo.URL == "" {
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return fmt.Errorf("repo %q: url is required", name)
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}
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if repo.DefaultBranch == "" {
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return fmt.Errorf("repo %q: default_branch is required", name)
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}
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}
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return nil
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}
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// GetRepo returns the configuration for a repository, or an error if not found.
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func (c *Config) GetRepo(name string) (*RepoConfig, error) {
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repo, ok := c.Repos[name]
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if !ok {
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return nil, fmt.Errorf("repo %q not found in configuration", name)
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}
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return &repo, nil
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}
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