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devmapper autoconfig: add mkdir

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I tried using dm.directlvm_device but it ended up with the following
error:

> Error starting daemon: error initializing graphdriver: error
> writing docker thinp autoextend profile: open
> /etc/lvm/profile/docker-thinpool.profile: no such file or directory

The reason is /etc/lvm/profile directory does not exist. I think it is
better to try creating it beforehand.

Signed-off-by: Kir Kolyshkin <kolyshkin@gmail.com>
Upstream-commit: 6ca20ec771ab7c0ebf64c20021ca795746cf3ccb
Component: engine
This commit is contained in:
Kir Kolyshkin
2017-08-11 08:00:00 -07:00
parent 5963ab8f5e
commit d92c40217f
1 changed files with 8 additions and 1 deletions
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9
components/engine/daemon/graphdriver/devmapper/device_setup.go
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@ -172,6 +172,8 @@ func writeLVMConfig(root string, cfg directLVMConfig) error {
}
func setupDirectLVM(cfg directLVMConfig) error {
lvmProfileDir := "/etc/lvm/profile"
pvCreate, err := exec.LookPath("pvcreate")
if err != nil {
return errors.Wrap(err, "error looking up command `pvcreate` while setting up direct lvm")
@ -197,6 +199,11 @@ func setupDirectLVM(cfg directLVMConfig) error {
return errors.Wrap(err, "error looking up command `lvchange` while setting up direct lvm")
}
err = os.MkdirAll(lvmProfileDir, 0755)
if err != nil {
return errors.Wrap(err, "error creating lvm profile directory")
}
if cfg.AutoExtendPercent == 0 {
cfg.AutoExtendPercent = 20
}
@ -237,7 +244,7 @@ func setupDirectLVM(cfg directLVMConfig) error {
}
profile := fmt.Sprintf("activation{\nthin_pool_autoextend_threshold=%d\nthin_pool_autoextend_percent=%d\n}", cfg.AutoExtendThreshold, cfg.AutoExtendPercent)
err = ioutil.WriteFile("/etc/lvm/profile/docker-thinpool.profile", []byte(profile), 0600)
err = ioutil.WriteFile(lvmProfileDir+"/docker-thinpool.profile", []byte(profile), 0600)
if err != nil {
return errors.Wrap(err, "error writing docker thinp autoextend profile")
}