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This is a virtcontainers 1.0.8 import into Kata Containers runtime. virtcontainers is a Go library designed to manage hardware virtualized pods and containers. It is the core Clear Containers framework and will become the core Kata Containers framework, as discussed at https://github.com/kata-containers/runtime/issues/33 Some more more pointers: virtcontainers README, including some design and architecure notes: https://github.com/containers/virtcontainers/blob/master/README.md virtcontainers 1.0 API: https://github.com/containers/virtcontainers/blob/master/documentation/api/1.0/api.md Fixes #40 Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
71 lines
2.1 KiB
Go
71 lines
2.1 KiB
Go
//
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// Copyright (c) 2016 Intel Corporation
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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package virtcontainers
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import (
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"github.com/sirupsen/logrus"
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)
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// cnm is a network implementation for the CNM plugin.
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type cnm struct {
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config NetworkConfig
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}
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func cnmLogger() *logrus.Entry {
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return virtLog.WithField("subsystem", "cnm")
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}
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// init initializes the network, setting a new network namespace for the CNM network.
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func (n *cnm) init(config NetworkConfig) (string, bool, error) {
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return initNetworkCommon(config)
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}
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// run runs a callback in the specified network namespace.
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func (n *cnm) run(networkNSPath string, cb func() error) error {
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return runNetworkCommon(networkNSPath, cb)
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}
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// add adds all needed interfaces inside the network namespace for the CNM network.
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func (n *cnm) add(pod Pod, config NetworkConfig, netNsPath string, netNsCreated bool) (NetworkNamespace, error) {
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endpoints, err := createEndpointsFromScan(netNsPath, config)
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if err != nil {
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return NetworkNamespace{}, err
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}
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networkNS := NetworkNamespace{
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NetNsPath: netNsPath,
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NetNsCreated: netNsCreated,
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Endpoints: endpoints,
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}
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if err := addNetworkCommon(pod, &networkNS); err != nil {
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return NetworkNamespace{}, err
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}
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return networkNS, nil
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}
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// remove unbridges and deletes TAP interfaces. It also removes virtual network
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// interfaces and deletes the network namespace for the CNM network.
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func (n *cnm) remove(pod Pod, networkNS NetworkNamespace) error {
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if err := removeNetworkCommon(networkNS); err != nil {
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return err
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}
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return deleteNetNS(networkNS.NetNsPath, true)
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}
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