diff --git a/pkg/release/publishers/docker.go b/pkg/release/publishers/docker.go
index 1d4b159..41fe7d5 100644
--- a/pkg/release/publishers/docker.go
+++ b/pkg/release/publishers/docker.go
@@ -6,6 +6,8 @@ import (
 
 	"dappco.re/go/core"
 	"dappco.re/go/core/build/internal/ax"
+	"dappco.re/go/core/build/pkg/build"
+	"dappco.re/go/core/io"
 	coreerr "dappco.re/go/core/log"
 )
 
@@ -51,7 +53,7 @@ func (p *DockerPublisher) Name() string {
 // err := pub.Publish(ctx, rel, pubCfg, relCfg, false)
 func (p *DockerPublisher) Publish(ctx context.Context, release *Release, pubCfg PublisherConfig, relCfg ReleaseConfig, dryRun bool) error {
 	// Parse Docker-specific config from publisher config
-	dockerCfg := p.parseConfig(pubCfg, relCfg, release.ProjectDir)
+	dockerCfg := p.parseConfig(release.FS, pubCfg, relCfg, release.ProjectDir)
 
 	// Validate Dockerfile exists
 	if !release.FS.Exists(dockerCfg.Dockerfile) {
@@ -72,14 +74,19 @@ func (p *DockerPublisher) Publish(ctx context.Context, release *Release, pubCfg
 }
 
 // parseConfig extracts Docker-specific configuration.
-func (p *DockerPublisher) parseConfig(pubCfg PublisherConfig, relCfg ReleaseConfig, projectDir string) DockerConfig {
+func (p *DockerPublisher) parseConfig(fs io.Medium, pubCfg PublisherConfig, relCfg ReleaseConfig, projectDir string) DockerConfig {
 	cfg := DockerConfig{
-		Registry:   "ghcr.io",
-		Image:      "",
-		Dockerfile: ax.Join(projectDir, "Dockerfile"),
-		Platforms:  []string{"linux/amd64", "linux/arm64"},
-		Tags:       []string{"latest", "{{.Version}}"},
-		BuildArgs:  make(map[string]string),
+		Registry:  "ghcr.io",
+		Image:     "",
+		Platforms: []string{"linux/amd64", "linux/arm64"},
+		Tags:      []string{"latest", "{{.Version}}"},
+		BuildArgs: make(map[string]string),
+	}
+
+	if dockerfile := build.ResolveDockerfilePath(fs, projectDir); dockerfile != "" {
+		cfg.Dockerfile = dockerfile
+	} else {
+		cfg.Dockerfile = ax.Join(projectDir, "Dockerfile")
 	}
 
 	// Try to get image from repository config
diff --git a/pkg/release/publishers/docker_test.go b/pkg/release/publishers/docker_test.go
index 58d74bd..3ab59da 100644
--- a/pkg/release/publishers/docker_test.go
+++ b/pkg/release/publishers/docker_test.go
@@ -23,7 +23,7 @@ func TestDocker_DockerPublisherParseConfig_Good(t *testing.T) {
 	t.Run("uses defaults when no extended config", func(t *testing.T) {
 		pubCfg := PublisherConfig{Type: "docker"}
 		relCfg := &mockReleaseConfig{repository: "owner/repo"}
-		cfg := p.parseConfig(pubCfg, relCfg, "/project")
+		cfg := p.parseConfig(io.Local, pubCfg, relCfg, "/project")
 
 		assert.Equal(t, "ghcr.io", cfg.Registry)
 		assert.Equal(t, "owner/repo", cfg.Image)
@@ -47,7 +47,7 @@ func TestDocker_DockerPublisherParseConfig_Good(t *testing.T) {
 			},
 		}
 		relCfg := &mockReleaseConfig{repository: "owner/repo"}
-		cfg := p.parseConfig(pubCfg, relCfg, "/project")
+		cfg := p.parseConfig(io.Local, pubCfg, relCfg, "/project")
 
 		assert.Equal(t, "docker.io", cfg.Registry)
 		assert.Equal(t, "myorg/myimage", cfg.Image)
@@ -65,10 +65,21 @@ func TestDocker_DockerPublisherParseConfig_Good(t *testing.T) {
 			},
 		}
 		relCfg := &mockReleaseConfig{repository: "owner/repo"}
-		cfg := p.parseConfig(pubCfg, relCfg, "/project")
+		cfg := p.parseConfig(io.Local, pubCfg, relCfg, "/project")
 
 		assert.Equal(t, "/absolute/path/Dockerfile", cfg.Dockerfile)
 	})
+
+	t.Run("detects Containerfile when Dockerfile is absent", func(t *testing.T) {
+		projectDir := t.TempDir()
+		require.NoError(t, ax.WriteFile(ax.Join(projectDir, "Containerfile"), []byte("FROM alpine\n"), 0o644))
+
+		pubCfg := PublisherConfig{Type: "docker"}
+		relCfg := &mockReleaseConfig{repository: "owner/repo"}
+		cfg := p.parseConfig(io.Local, pubCfg, relCfg, projectDir)
+
+		assert.Equal(t, ax.Join(projectDir, "Containerfile"), cfg.Dockerfile)
+	})
 }
 
 func TestDocker_DockerPublisherResolveTags_Good(t *testing.T) {
@@ -259,7 +270,7 @@ func TestDocker_DockerConfigDefaults_Good(t *testing.T) {
 		pubCfg := PublisherConfig{Type: "docker"}
 		relCfg := &mockReleaseConfig{repository: "owner/repo"}
 
-		cfg := p.parseConfig(pubCfg, relCfg, "/project")
+		cfg := p.parseConfig(io.Local, pubCfg, relCfg, "/project")
 
 		// Verify defaults
 		assert.Equal(t, "ghcr.io", cfg.Registry)
@@ -375,7 +386,7 @@ func TestDocker_DockerPublisherParseConfigEdgeCases_Good(t *testing.T) {
 			},
 		}
 
-		cfg := p.parseConfig(pubCfg, nil, "/project")
+		cfg := p.parseConfig(io.Local, pubCfg, nil, "/project")
 
 		assert.Equal(t, "custom/image", cfg.Image)
 		assert.Equal(t, "ghcr.io", cfg.Registry)
@@ -390,7 +401,7 @@ func TestDocker_DockerPublisherParseConfigEdgeCases_Good(t *testing.T) {
 		}
 		relCfg := &mockReleaseConfig{repository: ""}
 
-		cfg := p.parseConfig(pubCfg, relCfg, "/project")
+		cfg := p.parseConfig(io.Local, pubCfg, relCfg, "/project")
 
 		assert.Equal(t, "fallback/image", cfg.Image)
 	})
@@ -404,7 +415,7 @@ func TestDocker_DockerPublisherParseConfigEdgeCases_Good(t *testing.T) {
 		}
 		relCfg := &mockReleaseConfig{repository: "original/repo"}
 
-		cfg := p.parseConfig(pubCfg, relCfg, "/project")
+		cfg := p.parseConfig(io.Local, pubCfg, relCfg, "/project")
 
 		assert.Equal(t, "override/image", cfg.Image)
 	})
@@ -421,7 +432,7 @@ func TestDocker_DockerPublisherParseConfigEdgeCases_Good(t *testing.T) {
 		}
 		relCfg := &mockReleaseConfig{repository: "owner/repo"}
 
-		cfg := p.parseConfig(pubCfg, relCfg, "/project")
+		cfg := p.parseConfig(io.Local, pubCfg, relCfg, "/project")
 
 		assert.Equal(t, "value", cfg.BuildArgs["STRING_ARG"])
 		_, exists := cfg.BuildArgs["INT_ARG"]
diff --git a/pkg/release/publishers/integration_test.go b/pkg/release/publishers/integration_test.go
index fae64ba..503eb55 100644
--- a/pkg/release/publishers/integration_test.go
+++ b/pkg/release/publishers/integration_test.go
@@ -371,7 +371,7 @@ func TestIntegration_DockerPublisherIntegrationConfigParsing_Good(t *testing.T)
 		}
 		relCfg := &mockReleaseConfig{repository: "fallback/repo"}
 
-		cfg := p.parseConfig(pubCfg, relCfg, "/myproject")
+		cfg := p.parseConfig(io.Local, pubCfg, relCfg, "/myproject")
 
 		assert.Equal(t, "registry.example.com", cfg.Registry)
 		assert.Equal(t, "myteam/myservice", cfg.Image)