Add --backend-args

Allow to add arguments to the backend build arguments

Fixes #146

cmd/build.go

@@ -72,6 +72,7 @@ Build packages specifying multiple definition trees:
 		viper.BindPFlag("nodeps", cmd.Flags().Lookup("nodeps"))
 		viper.BindPFlag("onlydeps", cmd.Flags().Lookup("onlydeps"))
 		viper.BindPFlag("values", cmd.Flags().Lookup("values"))
+		viper.BindPFlag("backend-args", cmd.Flags().Lookup("backend-args"))
 
 		viper.BindPFlag("image-repository", cmd.Flags().Lookup("image-repository"))
 		viper.BindPFlag("push", cmd.Flags().Lookup("push"))
@@ -84,6 +85,7 @@ Build packages specifying multiple definition trees:
 		LuetCfg.Viper.BindPFlag("solver.rate", cmd.Flags().Lookup("solver-rate"))
 		LuetCfg.Viper.BindPFlag("solver.max_attempts", cmd.Flags().Lookup("solver-attempts"))
 		LuetCfg.Viper.BindPFlag("general.show_build_output", cmd.Flags().Lookup("live-output"))
+		LuetCfg.Viper.BindPFlag("backend-args", cmd.Flags().Lookup("backend-args"))
 
 	},
 	Run: func(cmd *cobra.Command, args []string) {
@@ -109,6 +111,7 @@ Build packages specifying multiple definition trees:
 		full, _ := cmd.Flags().GetBool("full")
 		concurrent, _ := cmd.Flags().GetBool("solver-concurrent")
 		var results Results
+		backendArgs := viper.GetStringSlice("backend-args")
 
 		out, _ := cmd.Flags().GetString("output")
 		if out != "terminal" {
@@ -180,6 +183,7 @@ Build packages specifying multiple definition trees:
 		}
 
 		luetCompiler := compiler.NewLuetCompiler(compilerBackend, generalRecipe.GetDatabase(), opts, solverOpts)
+		luetCompiler.SetBackendArgs(backendArgs)
 		luetCompiler.SetConcurrency(concurrency)
 		luetCompiler.SetCompressionType(compiler.CompressionImplementation(compressionType))
 		if full {
@@ -297,6 +301,7 @@ func init() {
 	if err != nil {
 		Fatal(err)
 	}
+
 	buildCmd.Flags().StringSliceP("tree", "t", []string{path}, "Path of the tree to use.")
 	buildCmd.Flags().String("backend", "docker", "backend used (docker,img)")
 	buildCmd.Flags().Bool("privileged", false, "Privileged (Keep permissions)")
@@ -305,6 +310,7 @@ func init() {
 	buildCmd.Flags().Bool("all", false, "Build all specfiles in the tree")
 	buildCmd.Flags().Bool("full", false, "Build all packages (optimized)")
 	buildCmd.Flags().String("values", "", "Build values file to interpolate with each package")
+	buildCmd.Flags().StringSliceP("backend-args", "a", []string{}, "Backend args")
 
 	buildCmd.Flags().String("destination", filepath.Join(path, "build"), "Destination folder")
 	buildCmd.Flags().String("compression", "none", "Compression alg: none, gzip, zstd")

pkg/compiler/backend/common.go

@@ -74,3 +74,13 @@ func runCommand(cmd *exec.Cmd) error {
 
 	return nil
 }
+
+func genBuildCommand(opts compiler.CompilerBackendOptions) []string {
+	context := opts.Context
+
+	if context == "" {
+		context = "."
+	}
+	buildarg := append(opts.BackendArgs, "-f", opts.DockerFileName, "-t", opts.ImageName, context)
+	return append([]string{"build"}, buildarg...)
+}

pkg/compiler/backend/simpledocker.go

@@ -44,18 +44,11 @@ func NewSimpleDockerBackend() compiler.CompilerBackend {
 // TODO: Missing still: labels, and build args expansion
 func (*SimpleDocker) BuildImage(opts compiler.CompilerBackendOptions) error {
 	name := opts.ImageName
-	path := opts.SourcePath
-	dockerfileName := opts.DockerFileName
-	context := opts.Context
-
-	if context == "" {
-		context = "."
-	}
-	buildarg := []string{"build", "-f", dockerfileName, "-t", name, context}
 
+	buildarg := genBuildCommand(opts)
 	Info(":whale2: Building image " + name)
 	cmd := exec.Command("docker", buildarg...)
-	cmd.Dir = path
+	cmd.Dir = opts.SourcePath
 	err := runCommand(cmd)
 	if err != nil {
 		return err

pkg/compiler/backend/simpleimg.go

@@ -35,20 +35,13 @@ func NewSimpleImgBackend() compiler.CompilerBackend {
 // TODO: Missing still: labels, and build args expansion
 func (*SimpleImg) BuildImage(opts compiler.CompilerBackendOptions) error {
 	name := opts.ImageName
-	path := opts.SourcePath
-	context := opts.Context
 
-	if context == "" {
+	buildarg := genBuildCommand(opts)
-		context = "."
-	}
-	dockerfileName := opts.DockerFileName
-
-	buildarg := []string{"build", "-f", dockerfileName, "-t", name, context}
 
 	Info(":tea: Building image " + name)
 
 	cmd := exec.Command("img", buildarg...)
-	cmd.Dir = path
+	cmd.Dir = opts.SourcePath
 	err := runCommand(cmd)
 	if err != nil {
 		return err

pkg/compiler/compiler.go

@@ -51,6 +51,7 @@ type LuetCompiler struct {
 	CompressionType           CompressionImplementation
 	Options                   CompilerOptions
 	SolverOptions             solver.Options
+	BackedArgs                []string
 }
 
 func NewLuetCompiler(backend CompilerBackend, db pkg.PackageDatabase, opt *CompilerOptions, solvopts solver.Options) Compiler {
@@ -70,7 +71,9 @@ func NewLuetCompiler(backend CompilerBackend, db pkg.PackageDatabase, opt *Compi
 		SolverOptions:   solvopts,
 	}
 }
-
+func (cs *LuetCompiler) SetBackendArgs(args []string) {
+	cs.BackedArgs = args
+}
 func (cs *LuetCompiler) SetConcurrency(i int) {
 	cs.Concurrency = i
 }
@@ -381,12 +384,14 @@ func (cs *LuetCompiler) buildPackageImage(image, buildertaggedImage, packageImag
 		SourcePath:     buildDir,
 		DockerFileName: p.GetPackage().GetFingerPrint() + "-builder.dockerfile",
 		Destination:    p.Rel(p.GetPackage().GetFingerPrint() + "-builder.image.tar"),
+		BackendArgs:    cs.BackedArgs,
 	}
 	runnerOpts = CompilerBackendOptions{
 		ImageName:      packageImage,
 		SourcePath:     buildDir,
 		DockerFileName: p.GetPackage().GetFingerPrint() + ".dockerfile",
 		Destination:    p.Rel(p.GetPackage().GetFingerPrint() + ".image.tar"),
+		BackendArgs:    cs.BackedArgs,
 	}
 
 	buildAndPush := func(opts CompilerBackendOptions) error {

pkg/compiler/interface.go

@@ -34,6 +34,8 @@ type Compiler interface {
 	FromDatabase(db pkg.PackageDatabase, minimum bool, dst string) ([]CompilationSpec, error)
 	SetBackend(CompilerBackend)
 	GetBackend() CompilerBackend
+
+	SetBackendArgs([]string)
 	SetCompressionType(t CompressionImplementation)
 }
 
@@ -43,6 +45,7 @@ type CompilerBackendOptions struct {
 	DockerFileName string
 	Destination    string
 	Context        string
+	BackendArgs    []string
 }
 
 type CompilerOptions struct {