client/lxd_containers.go
func (r *ProtocolLXD) CreateContainerSnapshot(containerName string, snapshot api.ContainerSnapshotsPost) (Operation, error) {
	// Validate the request
	if snapshot.ExpiresAt != nil && !r.HasExtension("snapshot_expiry_creation") {
		return nil, fmt.Errorf("The server is missing the required \"snapshot_expiry_creation\" API extension")
	}

	// Send the request
	op, _, err := r.queryOperation("POST", fmt.Sprintf("/containers/%s/snapshots", url.QueryEscape(containerName)), snapshot, "")
	if err != nil {
		return nil, err
	}

	return op, nil
}
func (r *ProtocolLXD) CreateContainerSnapshot(containerName string, snapshot api.ContainerSnapshotsPost) (Operation, error) {
	// Validate the request
	if snapshot.ExpiresAt != nil && !r.HasExtension("snapshot_expiry_creation") {
		return nil, fmt.Errorf("The server is missing the required \"snapshot_expiry_creation\" API extension")
	}

	// Send the request
	op, _, err := r.queryOperation("POST", fmt.Sprintf("/containers/%s/snapshots", url.QueryEscape(containerName)), snapshot, "")
	if err != nil {
		return nil, err
	}

	return op, nil
}
// CreateContainerSnapshot requests that LXD creates a new snapshot for the container