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56 lines
1.4 KiB
Go
56 lines
1.4 KiB
Go
/*
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Copyright The containerd Authors.
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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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http://www.apache.org/licenses/LICENSE-2.0
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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 runc
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import (
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"context"
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"os"
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"os/exec"
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"strings"
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"syscall"
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)
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func (r *Runc) command(context context.Context, args ...string) *exec.Cmd {
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command := r.Command
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if command == "" {
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command = DefaultCommand
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}
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cmd := exec.CommandContext(context, command, append(r.args(), args...)...)
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cmd.SysProcAttr = &syscall.SysProcAttr{
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Setpgid: r.Setpgid,
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}
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cmd.Env = filterEnv(os.Environ(), "NOTIFY_SOCKET") // NOTIFY_SOCKET introduces a special behavior in runc but should only be set if invoked from systemd
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if r.PdeathSignal != 0 {
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cmd.SysProcAttr.Pdeathsig = r.PdeathSignal
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}
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return cmd
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}
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func filterEnv(in []string, names ...string) []string {
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out := make([]string, 0, len(in))
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loop0:
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for _, v := range in {
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for _, k := range names {
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if strings.HasPrefix(v, k+"=") {
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continue loop0
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}
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}
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out = append(out, v)
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}
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return out
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}
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