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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
2.0 KiB
Go
71 lines
2.0 KiB
Go
//
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// Copyright (c) 2017 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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"fmt"
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"os/exec"
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"syscall"
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)
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// This is the Kata Containers implementation of the proxy interface.
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// This is pretty simple since it provides the same interface to both
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// runtime and shim as if they were talking directly to the agent.
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type kataProxy struct {
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}
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// start is kataProxy start implementation for proxy interface.
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func (p *kataProxy) start(pod Pod, params proxyParams) (int, string, error) {
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if pod.agent == nil {
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return -1, "", fmt.Errorf("No agent")
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}
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if params.agentURL == "" {
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return -1, "", fmt.Errorf("AgentURL cannot be empty")
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}
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config, err := newProxyConfig(pod.config)
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if err != nil {
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return -1, "", err
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}
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// construct the socket path the proxy instance will use
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proxyURL, err := defaultProxyURL(pod, SocketTypeUNIX)
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if err != nil {
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return -1, "", err
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}
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args := []string{config.Path, "-listen-socket", proxyURL, "-mux-socket", params.agentURL}
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if config.Debug {
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args = append(args, "-log", "debug")
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args = append(args, "-agent-logs-socket", pod.hypervisor.getPodConsole(pod.id))
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}
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cmd := exec.Command(args[0], args[1:]...)
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if err := cmd.Start(); err != nil {
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return -1, "", err
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}
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return cmd.Process.Pid, proxyURL, nil
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}
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// stop is kataProxy stop implementation for proxy interface.
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func (p *kataProxy) stop(pod Pod, pid int) error {
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// Signal the proxy with SIGTERM.
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return syscall.Kill(pid, syscall.SIGTERM)
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}
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