diff --git a/hack/actions/gen/main.go b/hack/actions/gen/main.go
index a1b1f19bc3d..789f24613a7 100644
--- a/hack/actions/gen/main.go
+++ b/hack/actions/gen/main.go
@@ -8,7 +8,6 @@ import (
 	"os"
 	"os/signal"
 	"syscall"
-	"time"
 
 	"github.com/vdaas/vald/internal/file"
 	"github.com/vdaas/vald/internal/log"
@@ -35,7 +34,8 @@ type Workflow struct {
 		Build struct {
 			Uses string `yaml:"uses"`
 			With struct {
-				Target string `yaml:"target"`
+				Target    string `yaml:"target"`
+				Platforms string `yaml:"platforms"`
 			} `yaml:"with"`
 			Secrets string `yaml:"secrets"`
 		} `yaml:"build"`
@@ -78,6 +78,7 @@ type Data struct {
 	PullRequestTargetPaths []string
 	BuildUses              string
 	BuildTarget            string
+	BuildPlatforms         string
 	BuildSecrets           string
 }
 
@@ -264,7 +265,7 @@ var (
 	}
 )
 
-func generateWorkflowStruct(data Data) Workflow {
+func generateWorkflowStruct(data *Data) Workflow {
 	var workflow Workflow
 
 	workflow.Name = data.Name
@@ -274,13 +275,26 @@ func generateWorkflowStruct(data Data) Workflow {
 	workflow.On.PullRequestTarget.Paths = data.PullRequestTargetPaths
 	workflow.Jobs.Build.Uses = data.BuildUses
 	workflow.Jobs.Build.With.Target = data.BuildTarget
+	workflow.Jobs.Build.With.Platforms = data.BuildPlatforms
 	workflow.Jobs.Build.Secrets = data.BuildSecrets
 
 	return workflow
 }
 
+func initializeData(data *Data) {
+	var pullRequestPaths = make([]string, 0) // TODO: ContainerTypeごとなどいろいろ条件分岐
+
+	data.PushBranches = []string{"main", "release/v*.*", "!release/v*.*.*"}
+	data.PushTags = []string{"*.*.*", "v*.*.*", "*.*.*-*", "v*.*.*-*"}
+	data.PullRequestPaths = pullRequestPaths
+	data.PullRequestTargetPaths = pullRequestPaths
+	data.BuildUses = "./.github/workflows/_docker-image.yaml"
+	data.BuildTarget = data.Name
+	data.BuildPlatforms = "linux/amd64,linux/arm64" // TODO: ここも分岐必要？？
+	data.BuildSecrets = "inherit"
+}
+
 func main() {
-	// TODO: この辺の処理は共通？
 	log.Init()
 	if len(os.Args) < minimumArgumentLength {
 		// skipcq: RVV-A0003
@@ -294,61 +308,21 @@ func main() {
 		syscall.SIGKILL,
 		syscall.SIGTERM)
 	defer cancel()
-	log.Debug(tmpl) // TODO: workflow型を表示？ここどうしよう？
+	// log.Debug(tmpl) TODO: workflow型を表示？ここどうしよう？
 
-	maintainer := os.Getenv(maintainerKey)
-	if maintainer == "" {
-		maintainer = defaultMaintainer
-	}
-	year := time.Now().Year()
 	eg, egctx := errgroup.New(ctx)
 	for n, d := range map[string]Data{
 		// TODO: mapを入れる
 	} {
 		name := n
 		data := d
+		data.Name = name[len("vald-"):]
 
 		eg.Go(safety.RecoverFunc(func() error {
-			data.Maintainer = maintainer
-			data.Year = year
-			if data.BinDir == "" {
-				data.BinDir = defaultBinaryDir
-			}
-			if data.RuntimeImage == "" {
-				data.RuntimeImage = defaultRuntimeImage
-			}
-			if data.RuntimeTag == "" {
-				data.RuntimeTag = defaultRuntimeTag
-			}
-			if data.BuilderImage == "" {
-				data.BuilderImage = defaultBuilderImage
-			}
-			if data.BuilderTag == "" {
-				data.BuilderTag = defaultBuilderTag
-			}
-			if data.RuntimeUser == "" {
-				data.RuntimeUser = defaultRuntimeUser
-			}
-			if data.BuildUser == "" {
-				data.BuildUser = defaultBuildUser
-			}
-			if data.BuildStageName == "" {
-				data.BuildStageName = defaultBuildStageName
-			}
-			if data.Environments != nil {
-				data.Environments = appendM(data.Environments, defaultEnvironments)
-			} else {
-				data.Environments = make(map[string]string, len(defaultEnvironments))
-				data.Environments = appendM(data.Environments, defaultEnvironments)
-			}
-
-			// TODO: ContainerTypeごとの処理 (workflow生成でも重要そう)
-
-			// ↑ここまでdataの処理 (TODO: workflowの生成でもほとんど共通？)
+			initializeData(&data)
 
-			// ↓ここからファイルの生成
 			log.Infof("Generating %s's workflow", name)
-			workflowStruct := generateWorkflowStruct(data)
+			workflowStruct := generateWorkflowStruct(&data)
 			workflowYaml, err := yaml.Marshal(&workflowStruct)
 			if err != nil {
 				log.Fatalf("error marshaling workflowStruct to YAML: %v", err)
@@ -357,7 +331,7 @@ func main() {
 			// TODO: ここの書き方あってる？？
 			buf := bytes.NewBuffer(make([]byte, 0, len(workflowYaml)))
 			buf.Write(workflowYaml)
-			file.OverWriteFile(egctx, file.Join(os.Args[1], ".github/workflows", "TODO: ファイル名"), buf, fs.ModePerm)
+			file.OverWriteFile(egctx, file.Join(os.Args[1], ".github/workflows", "dockers-"+data.Name+"-image.yml"), buf, fs.ModePerm)
 			return nil
 		}))
 	}