From 30f8878fbcc8eb06e4f483e8f8d3adad13c46fb9 Mon Sep 17 00:00:00 2001
From: Nicolas De Loof <nicolas.deloof@gmail.com>
Date: Sun, 16 Nov 2025 18:49:48 +0100
Subject: [PATCH] Fix support for port range

Signed-off-by: Nicolas De Loof <nicolas.deloof@gmail.com>
---
 pkg/compose/create.go  | 23 +++++++++++++++-----
 pkg/e2e/expose_test.go | 48 ++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 66 insertions(+), 5 deletions(-)
 create mode 100644 pkg/e2e/expose_test.go

diff --git a/pkg/compose/create.go b/pkg/compose/create.go
index 59dc568714..dc573fb5d2 100644
--- a/pkg/compose/create.go
+++ b/pkg/compose/create.go
@@ -210,11 +210,17 @@ func (s *composeService) getCreateConfigs(ctx context.Context,
 	if err != nil {
 		return createConfigs{}, err
 	}
+
+	exposed, err := buildContainerPorts(service)
+	if err != nil {
+		return createConfigs{}, err
+	}
+
 	containerConfig := container.Config{
 		Hostname:        service.Hostname,
 		Domainname:      service.DomainName,
 		User:            service.User,
-		ExposedPorts:    buildContainerPorts(service),
+		ExposedPorts:    exposed,
 		Tty:             tty,
 		OpenStdin:       stdinOpen,
 		StdinOnce:       opts.AttachStdin && stdinOpen,
@@ -763,17 +769,24 @@ func setBlkio(blkio *types.BlkioConfig, resources *container.Resources) {
 	}
 }
 
-func buildContainerPorts(s types.ServiceConfig) nat.PortSet {
+func buildContainerPorts(s types.ServiceConfig) (nat.PortSet, error) {
 	ports := nat.PortSet{}
 	for _, s := range s.Expose {
-		p := nat.Port(s)
-		ports[p] = struct{}{}
+		proto, port := nat.SplitProtoPort(s)
+		start, end, err := nat.ParsePortRange(port)
+		if err != nil {
+			return nil, err
+		}
+		for i := start; i <= end; i++ {
+			p := nat.Port(fmt.Sprintf("%d/%s", i, proto))
+			ports[p] = struct{}{}
+		}
 	}
 	for _, p := range s.Ports {
 		p := nat.Port(fmt.Sprintf("%d/%s", p.Target, p.Protocol))
 		ports[p] = struct{}{}
 	}
-	return ports
+	return ports, nil
 }
 
 func buildContainerPortBindingOptions(s types.ServiceConfig) nat.PortMap {
diff --git a/pkg/e2e/expose_test.go b/pkg/e2e/expose_test.go
new file mode 100644
index 0000000000..438f7b5490
--- /dev/null
+++ b/pkg/e2e/expose_test.go
@@ -0,0 +1,48 @@
+//go:build !windows
+
+/*
+   Copyright 2020 Docker Compose CLI authors
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+*/
+
+package e2e
+
+import (
+	"os"
+	"path/filepath"
+	"testing"
+
+	"gotest.tools/v3/assert"
+)
+
+// see https://github.com/docker/compose/issues/13378
+func TestExposeRange(t *testing.T) {
+	c := NewParallelCLI(t)
+
+	f := filepath.Join(t.TempDir(), "compose.yaml")
+	err := os.WriteFile(f, []byte(`
+name: test-expose-range
+services:
+  test:
+    image: alpine
+    expose:
+      - "9091-9092"
+`), 0o644)
+	assert.NilError(t, err)
+
+	t.Cleanup(func() {
+		c.cleanupWithDown(t, "test-expose-range")
+	})
+	c.RunDockerComposeCmd(t, "-f", f, "up")
+}