Allow existing EKS-A releases to be updated (aws#260)

release/cmd/release.go

@@ -262,7 +262,8 @@ var releaseCmd = &cobra.Command{
 				os.Exit(1)
 			}
 
-			release.Spec.Releases = append(release.Spec.Releases, eksARelease)
+			currentReleases := pkg.EksAReleases(release.Spec.Releases)
+			release.Spec.Releases = currentReleases.AppendOrUpdateRelease(eksARelease)
 
 			output, err := yaml.Marshal(release)
 			if err != nil {

release/pkg/prepare_release.go

@@ -15,11 +15,14 @@ import (
 	"github.com/aws/aws-sdk-go/service/ecrpublic"
 	"github.com/aws/aws-sdk-go/service/s3"
 	"github.com/aws/aws-sdk-go/service/s3/s3manager"
+	anywherev1alpha1 "github.com/aws/eks-anywhere/release/api/v1alpha1"
 	docker "github.com/fsouza/go-dockerclient"
 	"github.com/go-git/go-git/v5"
 	"github.com/pkg/errors"
 )
 
+type EksAReleases []anywherev1alpha1.EksARelease
+
 func (r *ReleaseConfig) SetRepoHeads() error {
 	// Get the repos from env var
 	cliRepoUrl := os.Getenv("CLI_REPO_URL")
@@ -426,3 +429,16 @@ func UpdateImageDigests(releaseClients *ReleaseClients, r *ReleaseConfig, eksArt
 
 	return imageDigests, nil
 }
+
+func (releases EksAReleases) AppendOrUpdateRelease(r anywherev1alpha1.EksARelease) EksAReleases {
+	for i, release := range releases {
+		if release.Version == r.Version {
+			releases[i] = r
+			fmt.Println("Updating existing release in releases manifest")
+			return releases
+		}
+	}
+	releases = append(releases, r)
+	fmt.Println("Adding new release to releases manifest")
+	return releases
+}