| /* |
| Copyright The containerd Authors. |
| |
| Licensed under the Apache License, Version 2.0 (the "License"); |
| you may not use this file except in compliance with the License. |
| You may obtain a copy of the License at |
| |
| http://www.apache.org/licenses/LICENSE-2.0 |
| |
| Unless required by applicable law or agreed to in writing, software |
| distributed under the License is distributed on an "AS IS" BASIS, |
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| See the License for the specific language governing permissions and |
| limitations under the License. |
| */ |
| |
| package runc |
| |
| import ( |
| "context" |
| "os" |
| "os/exec" |
| "strings" |
| "syscall" |
| ) |
| |
| func (r *Runc) command(context context.Context, args ...string) *exec.Cmd { |
| command := r.Command |
| if command == "" { |
| command = DefaultCommand |
| } |
| cmd := exec.CommandContext(context, command, append(r.args(), args...)...) |
| cmd.SysProcAttr = &syscall.SysProcAttr{ |
| Setpgid: r.Setpgid, |
| } |
| cmd.Env = filterEnv(os.Environ(), "NOTIFY_SOCKET") // NOTIFY_SOCKET introduces a special behavior in runc but should only be set if invoked from systemd |
| if r.PdeathSignal != 0 { |
| cmd.SysProcAttr.Pdeathsig = r.PdeathSignal |
| } |
| |
| return cmd |
| } |
| |
| func filterEnv(in []string, names ...string) []string { |
| out := make([]string, 0, len(in)) |
| loop0: |
| for _, v := range in { |
| for _, k := range names { |
| if strings.HasPrefix(v, k+"=") { |
| continue loop0 |
| } |
| } |
| out = append(out, v) |
| } |
| return out |
| } |