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Skip checking when failSwapOn=false

pull/8/head
linyouchong 2018-03-14 14:36:30 +08:00
parent 34001d8c6a
commit 32c265f60c
1 changed files with 14 additions and 11 deletions
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25
pkg/kubelet/cm/container_manager_linux.go
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@ -200,19 +200,22 @@ func NewContainerManager(mountUtil mount.Interface, cadvisorInterface cadvisor.I
return nil, fmt.Errorf("failed to get mounted cgroup subsystems: %v", err)
}
// Check whether swap is enabled. The Kubelet does not support running with swap enabled.
swapData, err := ioutil.ReadFile("/proc/swaps")
if err != nil {
return nil, err
}
swapData = bytes.TrimSpace(swapData) // extra trailing \n
swapLines := strings.Split(string(swapData), "\n")
if failSwapOn {
// Check whether swap is enabled. The Kubelet does not support running with swap enabled.
swapData, err := ioutil.ReadFile("/proc/swaps")
if err != nil {
return nil, err
}
swapData = bytes.TrimSpace(swapData) // extra trailing \n
swapLines := strings.Split(string(swapData), "\n")
// If there is more than one line (table headers) in /proc/swaps, swap is enabled and we should
// error out unless --fail-swap-on is set to false.
if failSwapOn && len(swapLines) > 1 {
return nil, fmt.Errorf("Running with swap on is not supported, please disable swap! or set --fail-swap-on flag to false. /proc/swaps contained: %v", swapLines)
// If there is more than one line (table headers) in /proc/swaps, swap is enabled and we should
// error out unless --fail-swap-on is set to false.
if len(swapLines) > 1 {
return nil, fmt.Errorf("Running with swap on is not supported, please disable swap! or set --fail-swap-on flag to false. /proc/swaps contained: %v", swapLines)
}
}
var capacity = v1.ResourceList{}
// It is safe to invoke `MachineInfo` on cAdvisor before logically initializing cAdvisor here because
// machine info is computed and cached once as part of cAdvisor object creation.