pkg/annotations: Export CRI-O annotations namespace

Some runtimes like Clear Containers need to interpret the CRI-O
annotations, to distinguish the infra container from the regular one.
Here we export those annotations and use a more standard dotted
namespace for them.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

pkg/annotations/annotations.go

@@ -0,0 +1,66 @@
+package annotations
+
+const (
+	// Annotations carries the received Kubelet annotations
+	Annotations = "io.kubernetes.cri-o.Annotations"
+
+	// ContainerID is the container ID annotation
+	ContainerID = "io.kubernetes.cri-o.ContainerID"
+
+	// ContainerName is the container name annotation
+	ContainerName = "io.kubernetes.cri-o.ContainerName"
+
+	// ContainerType is the container type (sandbox or container) annotation
+	ContainerType = "io.kubernetes.cri-o.ContainerType"
+
+	// Created is the container creation time annotation
+	Created = "io.kubernetes.cri-o.Created"
+
+	// HostName is the container host name annotation
+	HostName = "io.kubernetes.cri-o.HostName"
+
+	// Image is the container image ID annotation
+	Image = "io.kubernetes.cri-o.Image"
+
+	// KubeName is the kubernetes name annotation
+	KubeName = "io.kubernetes.cri-o.KubeName"
+
+	// Labels are the kubernetes labels annotation
+	Labels = "io.kubernetes.cri-o.Labels"
+
+	// LogPath is the container logging path annotation
+	LogPath = "io.kubernetes.cri-o.LogPath"
+
+	// Metadata is the container metadata annotation
+	Metadata = "io.kubernetes.cri-o.Metadata"
+
+	// Name is the pod name annotation
+	Name = "io.kubernetes.cri-o.Name"
+
+	// PrivilegedRuntime is the annotation for the privileged runtime path
+	PrivilegedRuntime = "io.kubernetes.cri-o.PrivilegedRuntime"
+
+	// ResolvPath is the resolver configuration path annotation
+	ResolvPath = "io.kubernetes.cri-o.ResolvPath"
+
+	// SandboxID is the sandbox ID annotation
+	SandboxID = "io.kubernetes.cri-o.SandboxID"
+
+	// SandboxName is the sandbox name annotation
+	SandboxName = "io.kubernetes.cri-o.SandboxName"
+
+	// ShmPath is the shared memory path annotation
+	ShmPath = "io.kubernetes.cri-o.ShmPath"
+
+	// TTY is the terminal path annotation
+	TTY = "io.kubernetes.cri-o.TTY"
+)
+
+// ContainerType values
+const (
+	// ContainerTypeSandbox represents a pod sandbox container
+	ContainerTypeSandbox = "sandbox"
+
+	// ContainerTypeContainer represents a container running within a pod
+	ContainerTypeContainer = "container"
+)