Support user passing an ARN for x-aws-vpc

Signed-off-by: Nicolas De Loof <nicolas.deloof@gmail.com>

ecs/awsResources.go

@@ -25,6 +25,7 @@ import (
 	"github.com/docker/compose-cli/api/compose"
 	"github.com/docker/compose-cli/errdefs"
 
+	"github.com/aws/aws-sdk-go/aws/arn"
 	"github.com/aws/aws-sdk-go/service/elbv2"
 	"github.com/awslabs/goformation/v4/cloudformation"
 	"github.com/awslabs/goformation/v4/cloudformation/ec2"
@@ -168,7 +169,15 @@ func (b *ecsAPIService) parseVPCExtension(ctx context.Context, project *types.Pr
 	var vpc string
 	if x, ok := project.Extensions[extensionVPC]; ok {
 		vpc = x.(string)
-		err := b.aws.CheckVPC(ctx, vpc)
+		ARN, err := arn.Parse(vpc)
+		if err == nil {
+			// User has set an ARN, like the one Terraform shows as output, while we expect an ID
+			id := ARN.Resource
+			i := strings.LastIndex(id, "/")
+			vpc = id[i+1:]
+		}
+
+		err = b.aws.CheckVPC(ctx, vpc)
 		if err != nil {
 			return "", nil, err
 		}

ecs/cloudformation_test.go

@@ -543,6 +543,23 @@ services:
 	assert.Equal(t, template.Metadata["Cluster"], "arn:aws:ecs:region:account:cluster/name")
 }
 
+func TestARNUsedAsVpcID(t *testing.T) {
+	convertYaml(t, `
+x-aws-vpc: "arn:aws:ec2:us-west-1:EXAMPLE:vpc/vpc-1234acbd"
+services:
+  test:
+    image: nginx
+`, func(m *MockAPIMockRecorder) {
+		m.CheckVPC(gomock.Any(), "vpc-1234acbd").Return(nil)
+		m.GetSubNets(gomock.Any(), "vpc-1234acbd").Return([]awsResource{
+			existingAWSResource{id: "subnet1"},
+			existingAWSResource{id: "subnet2"},
+		}, nil)
+		m.IsPublicSubnet(gomock.Any(), "subnet1").Return(true, nil)
+		m.IsPublicSubnet(gomock.Any(), "subnet2").Return(true, nil)
+	})
+}
+
 func convertYaml(t *testing.T, yaml string, fn ...func(m *MockAPIMockRecorder)) *cloudformation.Template {
 	project := loadConfig(t, yaml)
 	ctrl := gomock.NewController(t)