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rootless: fix mounting /var/lib/cni 

k3s was unable to start up when /var/lib/cni is missing on the host.

Fix https://github.com/rancher/k3s/issues/470

Signed-off-by: Akihiro Suda <akihiro.suda.cz@hco.ntt.co.jp>
pull/505/head
Akihiro Suda 2019-05-29 13:57:52 +09:00
parent 9efbeb11e4
commit 490d6aefe0
2 changed files with 7 additions and 3 deletions
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8
pkg/rootless/mounts.go
View File

@ -42,13 +42,17 @@ func setupMount(target, dir string) error {
toCreate = filepath.Base(toCreate) toCreate = filepath.Base(toCreate)
} }
if err := os.MkdirAll(toCreate, 0700); err != nil {
return errors.Wrapf(err, "failed to create directory %s", toCreate)
}
logrus.Debug("Mounting none ", toCreate, " tmpfs") logrus.Debug("Mounting none ", toCreate, " tmpfs")
if err := unix.Mount("none", toCreate, "tmpfs", 0, ""); err != nil { if err := unix.Mount("none", toCreate, "tmpfs", 0, ""); err != nil {
return errors.Wrapf(err, "failed to mount tmpfs to %s", toCreate) return errors.Wrapf(err, "failed to mount tmpfs to %s", toCreate)
} }
if err := os.MkdirAll(target, 0700); err != nil { if err := os.MkdirAll(target, 0700); err != nil {
return errors.Wrapf(err, "failed to create directory %s") return errors.Wrapf(err, "failed to create directory %s", target)
} }
if dir == "" { if dir == "" {
@ -56,7 +60,7 @@ func setupMount(target, dir string) error {
} }
if err := os.MkdirAll(dir, 0700); err != nil { if err := os.MkdirAll(dir, 0700); err != nil {
return errors.Wrapf(err, "failed to create directory %s") return errors.Wrapf(err, "failed to create directory %s", dir)
} }
logrus.Debug("Mounting ", dir, target, " none bind") logrus.Debug("Mounting ", dir, target, " none bind")

2
pkg/rootless/rootless.go
View File

@ -127,7 +127,7 @@ func createChildOpt() (*child.Opt, error) {
opt.TargetCmd = os.Args opt.TargetCmd = os.Args
opt.PipeFDEnvKey = pipeFD opt.PipeFDEnvKey = pipeFD
opt.NetworkDriver = slirp4netns.NewChildDriver() opt.NetworkDriver = slirp4netns.NewChildDriver()
opt.CopyUpDirs = []string{"/etc", "/run"} opt.CopyUpDirs = []string{"/etc", "/run", "/var/lib"}
opt.CopyUpDriver = tmpfssymlink.NewChildDriver() opt.CopyUpDriver = tmpfssymlink.NewChildDriver()
return opt, nil return opt, nil
} }