Merge pull request #142 from chris-crone/fix-141

Set random container name if not set

azure/login/login.go

@@ -5,7 +5,6 @@ import (
 	"encoding/json"
 	"fmt"
 	"log"
-	"math/rand"
 	"net/url"
 	"os/exec"
 	"path/filepath"
@@ -24,10 +23,6 @@ import (
 	"github.com/pkg/errors"
 )
 
-func init() {
-	rand.Seed(time.Now().Unix())
-}
-
 //go login process, derived from code sample provided by MS at https://github.com/devigned/go-az-cli-stuff
 const (
 	authorizeFormat  = "https://login.microsoftonline.com/organizations/oauth2/v2.0/authorize?response_type=code&client_id=%s&redirect_uri=%s&state=%s&prompt=select_account&response_mode=query&scope=%s"

cli/cmd/run/run.go

@@ -30,9 +30,7 @@ package run
 import (
 	"context"
 	"fmt"
-	"strings"
 
-	"github.com/docker/docker/pkg/namesgenerator"
 	"github.com/spf13/cobra"
 
 	"github.com/docker/api/cli/options/run"
@@ -52,7 +50,7 @@ func Command() *cobra.Command {
 	}
 
 	cmd.Flags().StringArrayVarP(&opts.Publish, "publish", "p", []string{}, "Publish a container's port(s). [HOST_PORT:]CONTAINER_PORT")
-	cmd.Flags().StringVar(&opts.Name, "name", getRandomName(), "Assign a name to the container")
+	cmd.Flags().StringVar(&opts.Name, "name", "", "Assign a name to the container")
 	cmd.Flags().StringArrayVarP(&opts.Labels, "label", "l", []string{}, "Set meta data on a container")
 	cmd.Flags().StringArrayVarP(&opts.Volumes, "volume", "v", []string{}, "Volume. Ex: user:key@my_share:/absolute/path/to/target")
 
@@ -77,8 +75,3 @@ func runRun(ctx context.Context, image string, opts run.Opts) error {
 
 	return nil
 }
-
-func getRandomName() string {
-	// Azure supports hyphen but not underscore in names
-	return strings.Replace(namesgenerator.GetRandomName(0), "_", "-", -1)
-}

cli/cmd/run/run_test.go

@@ -1,23 +1,42 @@
+/*
+	Copyright (c) 2020 Docker Inc.
+
+	Permission is hereby granted, free of charge, to any person
+	obtaining a copy of this software and associated documentation
+	files (the "Software"), to deal in the Software without
+	restriction, including without limitation the rights to use, copy,
+	modify, merge, publish, distribute, sublicense, and/or sell copies
+	of the Software, and to permit persons to whom the Software is
+	furnished to do so, subject to the following conditions:
+
+	The above copyright notice and this permission notice shall be
+	included in all copies or substantial portions of the Software.
+
+	THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+	EXPRESS OR IMPLIED,
+	INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+	FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+	IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+	HOLDERS BE LIABLE FOR ANY CLAIM,
+	DAMAGES OR OTHER LIABILITY,
+	WHETHER IN AN ACTION OF CONTRACT,
+	TORT OR OTHERWISE,
+	ARISING FROM, OUT OF OR IN CONNECTION WITH
+	THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+*/
 package run
 
 import (
-	"regexp"
+	"bytes"
 	"testing"
 
-	"github.com/stretchr/testify/require"
+	"gotest.tools/v3/golden"
 )
 
-var (
-	// AzureNameRegex is used to validate container names
-	// Regex was taken from server side error:
-	// The container name must contain no more than 63 characters and must match the regex '[a-z0-9]([-a-z0-9]*[a-z0-9])?' (e.g. 'my-name').
-	AzureNameRegex = regexp.MustCompile("[a-z0-9]([-a-z0-9]*[a-z0-9])")
-)
-
-// TestAzureRandomName ensures compliance with Azure naming requirements
-func TestAzureRandomName(t *testing.T) {
-	n := getRandomName()
-	require.Less(t, len(n), 64)
-	require.Greater(t, len(n), 1)
-	require.Regexp(t, AzureNameRegex, n)
+func TestHelp(t *testing.T) {
+	var b bytes.Buffer
+	c := Command()
+	c.SetOutput(&b)
+	_ = c.Help()
+	golden.Assert(t, b.String(), "run-help.golden")
 }

cli/cmd/run/testdata/run-help.golden

@@ -0,0 +1,10 @@
+Run a container
+
+Usage:
+  run [flags]
+
+Flags:
+  -l, --label stringArray     Set meta data on a container
+      --name string           Assign a name to the container
+  -p, --publish stringArray   Publish a container's port(s). [HOST_PORT:]CONTAINER_PORT
+  -v, --volume stringArray    Volume. Ex: user:key@my_share:/absolute/path/to/target

cli/main.go

@@ -30,11 +30,13 @@ package main
 import (
 	"context"
 	"fmt"
+	"math/rand"
 	"os"
 	"os/exec"
 	"os/signal"
 	"path/filepath"
 	"syscall"
+	"time"
 
 	"github.com/pkg/errors"
 	"github.com/sirupsen/logrus"
@@ -69,6 +71,8 @@ func init() {
 	if err := os.Setenv("PATH", fmt.Sprintf("%s:%s", os.Getenv("PATH"), path)); err != nil {
 		panic(err)
 	}
+	// Seed random
+	rand.Seed(time.Now().UnixNano())
 }
 
 func isOwnCommand(cmd *cobra.Command) bool {

cli/options/run/opts.go

@@ -5,6 +5,7 @@ import (
 	"strconv"
 	"strings"
 
+	"github.com/docker/docker/pkg/namesgenerator"
 	"github.com/docker/go-connections/nat"
 
 	"github.com/docker/api/containers"
@@ -20,6 +21,10 @@ type Opts struct {
 
 // ToContainerConfig convert run options to a container configuration
 func (r *Opts) ToContainerConfig(image string) (containers.ContainerConfig, error) {
+	if r.Name == "" {
+		r.Name = getRandomName()
+	}
+
 	publish, err := r.toPorts()
 	if err != nil {
 		return containers.ContainerConfig{}, err
@@ -83,3 +88,8 @@ func toLabels(labels []string) (map[string]string, error) {
 
 	return result, nil
 }
+
+func getRandomName() string {
+	// Azure supports hyphen but not underscore in names
+	return strings.Replace(namesgenerator.GetRandomName(0), "_", "-", -1)
+}

cli/options/run/opts_test.go

@@ -2,6 +2,7 @@ package run
 
 import (
 	"errors"
+	"regexp"
 	"testing"
 
 	"github.com/stretchr/testify/assert"
@@ -15,6 +16,21 @@ type RunOptsSuite struct {
 	suite.Suite
 }
 
+var (
+	// AzureNameRegex is used to validate container names
+	// Regex was taken from server side error:
+	// The container name must contain no more than 63 characters and must match the regex '[a-z0-9]([-a-z0-9]*[a-z0-9])?' (e.g. 'my-name').
+	AzureNameRegex = regexp.MustCompile("[a-z0-9]([-a-z0-9]*[a-z0-9])")
+)
+
+// TestAzureRandomName ensures compliance with Azure naming requirements
+func (s *RunOptsSuite) TestAzureRandomName() {
+	n := getRandomName()
+	require.Less(s.T(), len(n), 64)
+	require.Greater(s.T(), len(n), 1)
+	require.Regexp(s.T(), AzureNameRegex, n)
+}
+
 func (s *RunOptsSuite) TestPortParse() {
 	testCases := []struct {
 		in       string