Set netns to default to private like other namespaces

Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>

common/pkg/config/config_local_test.go

@@ -341,7 +341,7 @@ var _ = Describe("Config Local", func() {
 		// Given
 		config, err := NewConfig("")
 		gomega.Expect(err).To(gomega.BeNil())
-		gomega.Expect(config.Containers.NetNS).To(gomega.Equal(""))
+		gomega.Expect(config.Containers.NetNS).To(gomega.Equal("private"))
 		// When
 		config2, err := NewConfig("testdata/containers_default.conf")
 		// Then

common/pkg/config/config_test.go

@@ -29,6 +29,7 @@ var _ = Describe("Config", func() {
 			gomega.Expect(defaultConfig.Containers.ApparmorProfile).To(gomega.Equal(apparmor.Profile))
 			gomega.Expect(defaultConfig.Containers.PidsLimit).To(gomega.BeEquivalentTo(2048))
 			gomega.Expect(defaultConfig.Engine.ServiceTimeout).To(gomega.BeEquivalentTo(5))
+			gomega.Expect(defaultConfig.NetNS()).To(gomega.BeEquivalentTo("private"))
 			path, err := defaultConfig.ImageCopyTmpDir()
 			gomega.Expect(err).To(gomega.BeNil())
 			gomega.Expect(path).To(gomega.BeEquivalentTo("/var/tmp"))

common/pkg/config/default.go

@@ -190,6 +190,7 @@ func DefaultConfig() (*Config, error) {
 			IPCNS:              "private",
 			LogDriver:          defaultLogDriver(),
 			LogSizeMax:         DefaultLogSizeMax,
+			NetNS:              "private",
 			NoHosts:            false,
 			PidsLimit:          DefaultPidsLimit,
 			PidNS:              "private",