server: split containers actions

Signed-off-by: Antonio Murdaca <runcom@redhat.com>

server/container_remove.go

@@ -0,0 +1,53 @@
+package server
+
+import (
+	"fmt"
+	"os"
+	"path/filepath"
+
+	"github.com/Sirupsen/logrus"
+	"github.com/kubernetes-incubator/cri-o/oci"
+	"golang.org/x/net/context"
+	pb "k8s.io/kubernetes/pkg/kubelet/api/v1alpha1/runtime"
+)
+
+// RemoveContainer removes the container. If the container is running, the container
+// should be force removed.
+func (s *Server) RemoveContainer(ctx context.Context, req *pb.RemoveContainerRequest) (*pb.RemoveContainerResponse, error) {
+	logrus.Debugf("RemoveContainerRequest %+v", req)
+	c, err := s.getContainerFromRequest(req)
+	if err != nil {
+		return nil, err
+	}
+
+	if err := s.runtime.UpdateStatus(c); err != nil {
+		return nil, fmt.Errorf("failed to update container state: %v", err)
+	}
+
+	cState := s.runtime.ContainerStatus(c)
+	if cState.Status == oci.ContainerStateCreated || cState.Status == oci.ContainerStateRunning {
+		if err := s.runtime.StopContainer(c); err != nil {
+			return nil, fmt.Errorf("failed to stop container %s: %v", c.ID(), err)
+		}
+	}
+
+	if err := s.runtime.DeleteContainer(c); err != nil {
+		return nil, fmt.Errorf("failed to delete container %s: %v", c.ID(), err)
+	}
+
+	containerDir := filepath.Join(s.runtime.ContainerDir(), c.ID())
+	if err := os.RemoveAll(containerDir); err != nil {
+		return nil, fmt.Errorf("failed to remove container %s directory: %v", c.ID(), err)
+	}
+
+	s.releaseContainerName(c.Name())
+	s.removeContainer(c)
+
+	if err := s.ctrIDIndex.Delete(c.ID()); err != nil {
+		return nil, err
+	}
+
+	resp := &pb.RemoveContainerResponse{}
+	logrus.Debugf("RemoveContainerResponse: %+v", resp)
+	return resp, nil
+}