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-rw-r--r--cmd/podman/exec.go19
1 files changed, 12 insertions, 7 deletions
diff --git a/cmd/podman/exec.go b/cmd/podman/exec.go
index a6afbf75a..fc1c76e9f 100644
--- a/cmd/podman/exec.go
+++ b/cmd/podman/exec.go
@@ -112,14 +112,19 @@ func execCmd(c *cliconfig.ExecValues) error {
var ret int
data, err := ioutil.ReadFile(ctr.Config().ConmonPidFile)
- if err != nil {
- return errors.Wrapf(err, "cannot read conmon PID file %q", ctr.Config().ConmonPidFile)
- }
- conmonPid, err := strconv.Atoi(string(data))
- if err != nil {
- return errors.Wrapf(err, "cannot parse PID %q", data)
+ if err == nil {
+ conmonPid, err := strconv.Atoi(string(data))
+ if err != nil {
+ return errors.Wrapf(err, "cannot parse PID %q", data)
+ }
+ became, ret, err = rootless.JoinDirectUserAndMountNS(uint(conmonPid))
+ } else {
+ pid, err := ctr.PID()
+ if err != nil {
+ return err
+ }
+ became, ret, err = rootless.JoinNS(uint(pid), c.PreserveFDs)
}
- became, ret, err = rootless.JoinDirectUserAndMountNS(uint(conmonPid))
if err != nil {
return err
}