feat(scaffolder): Starting to add the cookiecutter support for running the template after we've got all the data

backend/Dockerfile

@@ -1,3 +1,4 @@
+### Builder Stage
 FROM golang:1.13 AS build
 ARG service
 
@@ -13,7 +14,9 @@ COPY $service/ /build/$service/
 
 RUN go build .
 
-FROM debian:buster
+
+### Running Container Stage
+FROM debian:buster AS run
 ARG service
 
 WORKDIR /app/
@@ -21,3 +24,10 @@ WORKDIR /app/
 COPY --from=build /build/$service/$service /app/service
 
 CMD ["./service"]
+
+
+### Scaffolder Stage
+### needs extra cookiecutter
+FROM run AS scaffolder
+RUN apt-get update && apt-get install -y python-pip
+RUN pip install cookiecutter==1.7.0 --index-url https://pypi.python.org/simple

backend/scaffolder/app/server.go

@@ -3,8 +3,11 @@ package app
 import (
 	"context"
 	"fmt"
+	"github.com/golang/protobuf/jsonpb"
 	"google.golang.org/grpc/codes"
 	"google.golang.org/grpc/status"
+	"log"
+	"os/exec"
 
 	identity "github.com/spotify/backstage/backend/proto/identity/v1"
 	pb "github.com/spotify/backstage/backend/proto/scaffolder/v1"
@@ -30,20 +33,40 @@ func NewServer() *Server {
 // Create scaffolds the repo in github and then will create push to the repository
 func (s *Server) Create(ctx context.Context, req *pb.CreateRequest) (*pb.CreateReply, error) {
 	// first create the repository with github
-	fmt.Sprintf("Creating repository for Component %s", req.ComponentId)
-	repo := remote.Repository{
-		Name:    req.ComponentId,
-		Org:     req.Org,
-		Private: req.Private,
-	}
-	if _, err := s.github.CreateRepository(repo); err != nil {
-		return nil, status.Error(codes.Internal, fmt.Sprintf("Could not create repository %s/%s", req.Org, req.ComponentId))
-	}
+	log.Printf("Creating repository for Component %s", req.ComponentId)
+	// repo := remote.Repository{
+	// 	Name:    req.ComponentId,
+	// 	Org:     req.Org,
+	// 	Private: req.Private,
+	// }
+
+	// if _, err := s.github.CreateRepository(repo); err != nil {
+	// 	return nil, status.Error(codes.Internal, fmt.Sprintf("Could not create repository %s/%s", req.Org, req.ComponentId))
+	// }
+
+	marshaller := &jsonpb.Marshaler{}
+	d, e := marshaller.MarshalToString(req.Metadata)
 
 	// move the template into a temporary directory
-	tempFolder, _ := s.fs.PrepareTemplate(fs.Template{req.TemplateId})
+	tempFolder, err := s.fs.PrepareTemplate(
+		fs.Template{
+			ID:       req.TemplateId,
+			Metadata: req.Metadata,
+		},
+	)
+	if err != nil {
+		return nil, status.Error(codes.Internal, fmt.Sprintf("Could not prepare the template"))
+	}
+
+	log.Printf("Created temporary folder %s", tempFolder)
+	// TODO(blam): Probably need to wrap this in a timeout or something to avoid waiting to long
+	cmd := exec.Command("cookiecutter", "--no-input", "-v", tempFolder)
+	cmd.Dir = tempFolder
+	err := cmd.Run()
+
+	fmt.Println(output)
+	fmt.Println(err)
 
-	fmt.Sprintf("Created temporary folder %s", tempFolder)
 	// use git bindings to add the remote with access token and push to the directory
 	return nil, nil
 }

backend/scaffolder/cutter/cutter.go

@@ -0,0 +1,13 @@
+package cutter
+
+// Cutter is the wrapper around cookiecutter
+type Cutter interface {
+}
+
+type Template {
+	
+}
+// Run runs cookiecutter in the folder provided
+func (c *Cutter) Run() error {
+
+}

backend/scaffolder/fs/fs.go

@@ -9,7 +9,8 @@ import (
 )
 
 // Filesystem Repository
-type Filesystem struct{}
+type Filesystem struct {
+}
 
 func file(src, dst string) error {
 	var err error
@@ -78,7 +79,6 @@ type Template struct {
 // and return the temp location
 func (f *Filesystem) PrepareTemplate(template Template) (string, error) {
 	tempDirectory, _ := ioutil.TempDir(os.TempDir(), template.ID)
-	fmt.Println(tempDirectory)
 	if err := dir("./templates/"+template.ID, tempDirectory); err != nil {
 		return "", err
 	}

docker-compose.yaml

@@ -25,6 +25,7 @@ services:
     container_name: boss-builds
     build:
       context: backend
+      target: run
       args:
         service: builds
     restart: unless-stopped
@@ -34,6 +35,7 @@ services:
     container_name: boss-scaffolder
     build:
       context: backend
+      target: scaffolder
       args:
         service: scaffolder
     restart: unless-stopped

tools/cookiecutter/Dockerfile

@@ -1,3 +1,3 @@
-FROM python:3.8-slim
+FROM python:3.8-slim AS scaffolder
 RUN pip install cookiecutter==1.7.0 --index-url https://pypi.python.org/simple
 ENTRYPOINT [ "cookiecutter" ]