Extract daemon configuration and discovery to their own package

This also moves some cli specific in `cmd/dockerd` as it does not
really belong to the `daemon/config` package.

Signed-off-by: Vincent Demeester <vincent@sbr.pm>

1 files changed, 32 insertions, 0 deletions

diff --git a/cmd/dockerd/config_unix_test.go b/cmd/dockerd/config_unix_test.go
new file mode 100644
index 0000000000..595b07263b
--- /dev/null
+++ b/cmd/dockerd/config_unix_test.go
@@ -0,0 +1,32 @@
+// +build linux,!solaris freebsd,!solaris
+
+package main
+
+import (
+	"runtime"
+	"testing"
+
+	"github.com/docker/docker/daemon/config"
+	"github.com/docker/docker/pkg/testutil/assert"
+	"github.com/spf13/pflag"
+)
+
+func TestDaemonParseShmSize(t *testing.T) {
+	if runtime.GOOS == "solaris" {
+		t.Skip("ShmSize not supported on Solaris\n")
+	}
+	flags := pflag.NewFlagSet("test", pflag.ContinueOnError)
+
+	conf := &config.Config{}
+	installConfigFlags(conf, flags)
+	// By default `--default-shm-size=64M`
+	expectedValue := 64 * 1024 * 1024
+	if conf.ShmSize.Value() != int64(expectedValue) {
+		t.Fatalf("expected default shm size %d, got %d", expectedValue, conf.ShmSize.Value())
+	}
+	assert.NilError(t, flags.Set("default-shm-size", "128M"))
+	expectedValue = 128 * 1024 * 1024
+	if conf.ShmSize.Value() != int64(expectedValue) {
+		t.Fatalf("expected default shm size %d, got %d", expectedValue, conf.ShmSize.Value())
+	}
+}