integration-cli-on-swarm: print detailed error
@@ -43,7 +43,7 @@ func deployStack(unusedCli *client.Client, stackName, composeFilePath string) er
func hasStack(unusedCli *client.Client, stackName string) bool {
// FIXME: eliminate os/exec (but stack is implemented in CLI ...)
- out, err := exec.Command("docker", "stack", "ls").Output()
+ out, err := exec.Command("docker", "stack", "ls").CombinedOutput()
if err != nil {
panic(fmt.Errorf("`docker stack ls` failed with: %s", string(out)))
}
