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Merge pull request #9926 from bprashanth/kubelet_race

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Fix benign data race in pod workers
This commit is contained in:
Saad Ali 2015-06-17 18:09:28 -07:00
commit c759ef2be0
1 changed files with 7 additions and 0 deletions
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7
pkg/capabilities/capabilities.go
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@ -29,7 +29,9 @@ type Capabilities struct {
HostNetworkSources []string
}
// TODO: Clean these up into a singleton
var once sync.Once
var lock sync.Mutex
var capabilities *Capabilities
// Initialize the capability set. This can only be done once per binary, subsequent calls are ignored.
@ -50,11 +52,16 @@ func Setup(allowPrivileged bool, hostNetworkSources []string) {
// SetCapabilitiesForTests. Convenience method for testing. This should only be called from tests.
func SetForTests(c Capabilities) {
lock.Lock()
defer lock.Unlock()
capabilities = &c
}
// Returns a read-only copy of the system capabilities.
func Get() Capabilities {
lock.Lock()
defer lock.Unlock()
// This check prevents clobbering of capabilities that might've been set via SetForTests
if capabilities == nil {
Initialize(Capabilities{
AllowPrivileged: false,