Merge pull request #221 from carmark/inspect_image

check image before pull image in cron and service

Author: carmark

api/client/cron.go

@@ -103,8 +103,10 @@ func (cli *DockerCli) CmdCronCreate(args ...string) error {
 		entrypoint = strslice.StrSlice{*flEntrypoint}
 	}
 
-	if err := cli.pullImage(context.Background(), image); err != nil {
-		return err
+	if _, _, err = cli.client.ImageInspectWithRaw(context.Background(), image, false); err != nil {
+		if err := cli.pullImage(context.Background(), image); err != nil {
+			return err
+		}
 	}
 
 	// collect all the environment variables for the container

api/client/service.go

@@ -90,8 +90,10 @@ func (cli *DockerCli) CmdServiceCreate(args ...string) error {
 		image      = cmd.Arg(0)
 	)
 
-	if err := cli.pullImage(context.Background(), image); err != nil {
-		return err
+	if _, _, err = cli.client.ImageInspectWithRaw(context.Background(), image, false); err != nil {
+		if err := cli.pullImage(context.Background(), image); err != nil {
+			return err
+		}
 	}
 
 	if len(parsedArgs) > 1 {