Set Composefile WorkingDir to dirname of the composefile.

Signed-off-by: Daniel Nephin <dnephin@docker.com>

cli/command/stack/deploy_composefile.go

@@ -4,6 +4,7 @@ import (
 	"fmt"
 	"io/ioutil"
 	"os"
+	"path/filepath"
 	"sort"
 	"strings"
 
@@ -20,7 +21,7 @@ import (
 )
 
 func deployCompose(ctx context.Context, dockerCli *command.DockerCli, opts deployOptions) error {
-	configDetails, err := getConfigDetails(opts)
+	configDetails, err := getConfigDetails(opts.composefile)
 	if err != nil {
 		return err
 	}
@@ -108,16 +109,16 @@ func propertyWarnings(properties map[string]string) string {
 	return strings.Join(msgs, "\n\n")
 }
 
-func getConfigDetails(opts deployOptions) (composetypes.ConfigDetails, error) {
+func getConfigDetails(composefile string) (composetypes.ConfigDetails, error) {
 	var details composetypes.ConfigDetails
-	var err error
 
-	details.WorkingDir, err = os.Getwd()
+	absPath, err := filepath.Abs(composefile)
 	if err != nil {
 		return details, err
 	}
+	details.WorkingDir = filepath.Dir(absPath)
 
-	configFile, err := getConfigFile(opts.composefile)
+	configFile, err := getConfigFile(composefile)
 	if err != nil {
 		return details, err
 	}

cli/command/stack/deploy_composefile_test.go

@@ -0,0 +1,28 @@
+package stack
+
+import (
+	"os"
+	"path/filepath"
+	"testing"
+
+	"github.com/docker/docker/pkg/testutil/tempfile"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestGetConfigDetails(t *testing.T) {
+	content := `
+version: "3.0"
+services:
+  foo:
+    image: alpine:3.5
+`
+	file := tempfile.NewTempFile(t, "test-get-config-details", content)
+	defer file.Remove()
+
+	details, err := getConfigDetails(file.Name())
+	require.NoError(t, err)
+	assert.Equal(t, filepath.Dir(file.Name()), details.WorkingDir)
+	assert.Len(t, details.ConfigFiles, 1)
+	assert.Len(t, details.Environment, len(os.Environ()))
+}