feat: Implement basic build & push capabilities for services (#68)

* wip: Build experiments

* wip: overall structure for build/push

* ref: Split method, add test fixture

* feat: Basic push functionality

* ref: Better structure and output

* feat: Handle registry auth

* feat: Integrate with deploy

* ref: Split into files

* fix: Modernize push options

cmd/uncloud/build.go

@@ -0,0 +1,77 @@
+package main
+
+import (
+	"context"
+	"fmt"
+
+	composecli "github.com/compose-spec/compose-go/v2/cli"
+	"github.com/psviderski/uncloud/internal/cli"
+	"github.com/psviderski/uncloud/pkg/client/compose"
+	"github.com/spf13/cobra"
+)
+
+// NewBuildCommand creates a new command to build services from a Compose file.
+func NewBuildCommand() *cobra.Command {
+	opts := cli.BuildOptions{}
+	cmd := &cobra.Command{
+		Use:   "build [FLAGS] [SERVICE...]",
+		Short: "Build services from a Compose file.",
+		RunE: func(cmd *cobra.Command, args []string) error {
+			uncli := cmd.Context().Value("cli").(*cli.CLI)
+
+			if len(args) > 0 {
+				opts.Services = args
+			}
+
+			return runBuild(cmd.Context(), uncli, opts)
+		},
+	}
+
+	cmd.Flags().StringSliceVarP(&opts.Files, "file", "f", nil,
+		"One or more Compose files to build (default compose.yaml)")
+	cmd.Flags().StringSliceVarP(&opts.Profiles, "profile", "p", nil,
+		"One or more Compose profiles to enable.")
+	cmd.Flags().BoolVarP(&opts.Push, "push", "P", false,
+		"Push built images to the registry after building. (default false)")
+	cmd.Flags().BoolVarP(&opts.NoCache, "no-cache", "n", false,
+		"Do not use cache when building images. (default false)")
+
+	return cmd
+}
+
+// TODO: deduplicate with a similar functino for deploy options
+// projectOpts returns the project options for the Compose file(s).
+func projectOptsFromBuildOpts(opts cli.BuildOptions) []composecli.ProjectOptionsFn {
+	projectOpts := []composecli.ProjectOptionsFn{}
+
+	if len(opts.Profiles) > 0 {
+		projectOpts = append(projectOpts, composecli.WithDefaultProfiles(opts.Profiles...))
+	}
+
+	return projectOpts
+}
+
+// runBuild parses the Compose file(s), builds the services, and pushes them if requested.
+func runBuild(ctx context.Context, uncli *cli.CLI, opts cli.BuildOptions) error {
+	projectOpts := projectOptsFromBuildOpts(opts)
+	project, err := compose.LoadProject(ctx, opts.Files, projectOpts...)
+	if err != nil {
+		return fmt.Errorf("load compose file(s): %w", err)
+	}
+
+	if len(opts.Services) > 0 {
+		project, err = project.WithSelectedServices(opts.Services)
+		if err != nil {
+			return fmt.Errorf("select services: %w", err)
+		}
+	}
+
+	servicesToBuild := cli.GetServicesThatNeedBuild(project)
+
+	if len(servicesToBuild) == 0 {
+		fmt.Println("No services to build.")
+		return nil
+	}
+
+	return cli.BuildServices(ctx, servicesToBuild, opts)
+}

cmd/uncloud/deploy.go

@@ -20,6 +20,7 @@ type deployOptions struct {
 	files    []string
 	profiles []string
 	services []string
+	noBuild  bool
 
 	context string
 }
@@ -47,6 +48,9 @@ func NewDeployCommand() *cobra.Command {
 		"One or more Compose profiles to enable.")
 	cmd.Flags().StringVarP(&opts.context, "context", "c", "",
 		"Name of the cluster context to deploy to (default is the current context)")
+	cmd.Flags().BoolVarP(&opts.noBuild, "no-build", "n", false,
+		"Do not build images before deploying services. (default false)")
+
 	// TODO: Consider adding a filter flag to specify which machines to deploy to but keep the rest running.
 	//  Could be useful to test a new version on a subset of machines before rolling out to all.
 
@@ -81,6 +85,26 @@ func runDeploy(ctx context.Context, uncli *cli.CLI, opts deployOptions) error {
 		}
 	}
 
+	servicesToBuild := cli.GetServicesThatNeedBuild(project)
+
+	if len(servicesToBuild) > 0 {
+		if opts.noBuild {
+			fmt.Println("Not building services as requested.")
+		} else {
+			buildOpts := cli.BuildOptions{
+				Files:    opts.files,
+				Profiles: opts.profiles,
+				Services: opts.services,
+				Push:     true,
+				NoCache:  false,
+			}
+
+			if err := cli.BuildServices(ctx, servicesToBuild, buildOpts); err != nil {
+				return fmt.Errorf("build services: %w", err)
+			}
+		}
+	}
+
 	clusterClient, err := uncli.ConnectCluster(ctx, opts.context)
 	if err != nil {
 		return fmt.Errorf("connect to cluster: %w", err)

cmd/uncloud/main.go

@@ -75,6 +75,7 @@ func main() {
 
 	cmd.AddCommand(
 		NewDeployCommand(),
+		NewBuildCommand(),
 		caddy.NewRootCommand(),
 		cmdcontext.NewRootCommand(),
 		dns.NewRootCommand(),