7fdf8cd31e
This handles signals first thing on boot so that plugins are able to boot with the reaper enabled. Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
58 lines
1.1 KiB
Go
58 lines
1.1 KiB
Go
// +build linux darwin freebsd solaris
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package main
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import (
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"context"
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"os"
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"golang.org/x/sys/unix"
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"github.com/containerd/containerd/log"
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"github.com/containerd/containerd/reaper"
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"github.com/containerd/containerd/server"
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)
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const defaultConfigPath = "/etc/containerd/config.toml"
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var handledSignals = []os.Signal{
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unix.SIGTERM,
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unix.SIGINT,
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unix.SIGUSR1,
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unix.SIGCHLD,
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unix.SIGPIPE,
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}
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func handleSignals(ctx context.Context, signals chan os.Signal, serverC chan *server.Server) chan struct{} {
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done := make(chan struct{}, 1)
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go func() {
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var server *server.Server
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for {
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select {
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case s := <-serverC:
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server = s
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case s := <-signals:
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log.G(ctx).WithField("signal", s).Debug("received signal")
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switch s {
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case unix.SIGCHLD:
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if err := reaper.Reap(); err != nil {
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log.G(ctx).WithError(err).Error("reap containerd processes")
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}
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case unix.SIGUSR1:
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dumpStacks()
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case unix.SIGPIPE:
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continue
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default:
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if server == nil {
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close(done)
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return
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}
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server.Stop()
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close(done)
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}
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}
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}
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}()
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return done
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}
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