Update memory limit for container

Signed-off-by: Michael Crosby <crosbymichael@gmail.com>

daemon/create.go

@@ -15,8 +15,8 @@ func (daemon *Daemon) ContainerCreate(job *engine.Job) engine.Status {
 		return job.Errorf("Usage: %s", job.Name)
 	}
 	config := runconfig.ContainerConfigFromJob(job)
-	if config.Memory != 0 && config.Memory < 524288 {
-		return job.Errorf("Minimum memory limit allowed is 512k")
+	if config.Memory != 0 && config.Memory < 4194304 {
+		return job.Errorf("Minimum memory limit allowed is 4MB")
 	}
 	if config.Memory > 0 && !daemon.SystemConfig().MemoryLimit {
 		job.Errorf("Your kernel does not support memory limit capabilities. Limitation discarded.\n")

integration-cli/docker_cli_run_test.go

@@ -40,7 +40,7 @@ func TestRunEchoStdout(t *testing.T) {
 
 // "test" should be printed
 func TestRunEchoStdoutWithMemoryLimit(t *testing.T) {
-	runCmd := exec.Command(dockerBinary, "run", "-m", "2786432", "busybox", "echo", "test")
+	runCmd := exec.Command(dockerBinary, "run", "-m", "4m", "busybox", "echo", "test")
 	out, _, _, err := runCommandWithStdoutStderr(runCmd)
 	if err != nil {
 		t.Fatalf("failed to run container: %v, output: %q", err, out)
@@ -77,7 +77,7 @@ func TestRunEchoStdoutWitCPULimit(t *testing.T) {
 
 // "test" should be printed
 func TestRunEchoStdoutWithCPUAndMemoryLimit(t *testing.T) {
-	runCmd := exec.Command(dockerBinary, "run", "-c", "1000", "-m", "2786432", "busybox", "echo", "test")
+	runCmd := exec.Command(dockerBinary, "run", "-c", "1000", "-m", "4m", "busybox", "echo", "test")
 	out, _, _, err := runCommandWithStdoutStderr(runCmd)
 	if err != nil {
 		t.Fatalf("failed to run container: %v, output: %q", err, out)