Refactor CRI packages

Signed-off-by: Maksym Pavlenko <pavlenko.maksym@gmail.com>

pkg/cri/annotations/annotations.go

@@ -0,0 +1,50 @@
+/*
+   Copyright The containerd Authors.
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+*/
+
+package annotations
+
+// ContainerType values
+// Following OCI annotations are used by katacontainers now.
+// We'll switch to standard secure pod API after it is defined in CRI.
+const (
+	// ContainerTypeSandbox represents a pod sandbox container
+	ContainerTypeSandbox = "sandbox"
+
+	// ContainerTypeContainer represents a container running within a pod
+	ContainerTypeContainer = "container"
+
+	// ContainerType is the container type (sandbox or container) annotation
+	ContainerType = "io.kubernetes.cri.container-type"
+
+	// SandboxID is the sandbox ID annotation
+	SandboxID = "io.kubernetes.cri.sandbox-id"
+
+	// SandboxLogDir is the pod log directory annotation.
+	// If the sandbox needs to generate any log, it will put it into this directory.
+	// Kubelet will be responsible for:
+	// 1) Monitoring the disk usage of the log, and including it as part of the pod
+	// ephemeral storage usage.
+	// 2) Cleaning up the logs when the pod is deleted.
+	// NOTE: Kubelet is not responsible for rotating the logs.
+	SandboxLogDir = "io.kubernetes.cri.sandbox-log-directory"
+
+	// UntrustedWorkload is the sandbox annotation for untrusted workload. Untrusted
+	// workload can only run on dedicated runtime for untrusted workload.
+	UntrustedWorkload = "io.kubernetes.cri.untrusted-workload"
+
+	// containerName is the name of the container in the pod
+	ContainerName = "io.kubernetes.cri.container-name"
+)