Merge pull request #72437 from liggitt/shorten-token-re-read

Shorten re-read period for token files to work with ProjectedTokenVolumeSource
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Kubernetes Prow Robot 2019-01-07 15:25:10 -08:00 committed by GitHub
commit de4e1ce401
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@ -47,14 +47,14 @@ func TokenSourceWrapTransport(ts oauth2.TokenSource) func(http.RoundTripper) htt
func NewCachedFileTokenSource(path string) oauth2.TokenSource { func NewCachedFileTokenSource(path string) oauth2.TokenSource {
return &cachingTokenSource{ return &cachingTokenSource{
now: time.Now, now: time.Now,
leeway: 1 * time.Minute, leeway: 10 * time.Second,
base: &fileTokenSource{ base: &fileTokenSource{
path: path, path: path,
// This period was picked because it is half of the minimum validity // This period was picked because it is half of the duration between when the kubelet
// duration for a token provisioned by they TokenRequest API. This is // refreshes a projected service account token and when the original token expires.
// unsophisticated and should induce rotation at a frequency that should // Default token lifetime is 10 minutes, and the kubelet starts refreshing at 80% of lifetime.
// work with the token volume source. // This should induce re-reading at a frequency that works with the token volume source.
period: 5 * time.Minute, period: time.Minute,
}, },
} }
} }