Add Prometheus metrics for authentication attempts #15794
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/unassign |
pkg/auth/prometheus/metrics.go
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| } | ||
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| func UpdateAuthCounters(user, path, result string) { | ||
| authCounterTotal.WithLabelValues().Inc() |
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The cardinality of metrics that are labeled by username are going to be really high. What's the lifetime of these metrics?
pkg/auth/prometheus/metrics.go
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| Subsystem: AuthSubsystem, | ||
| Name: "auth_count_user_path", | ||
| Help: "Counts total authentication attempts, by user and request path", | ||
| }, []string{"user", "path"}, |
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cardinality of this is too high. Either use api request info and bucket by resource and verb, or get rid of this.
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Basically we cannot have any unbounded cardinality metrics (like path) in the system.
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I removed the high cardinality label metrics. |
pkg/auth/server/login/login.go
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| user, ok, err := l.auth.AuthenticatePassword(username, password) | ||
| if err != nil { | ||
| glog.Errorf(`Error authenticating %q with provider %q: %v`, username, l.provider, err) | ||
| failed(errorpage.AuthenticationErrorCode(err), w, req) | ||
| result = "failure" |
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Should probably distinguish this result as "error"
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@liggitt @smarterclayton lmk if there are any other changes needed. |
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@liggitt @mfojtik @smarterclayton Could you please take a look at this, this is adressing a 3.7 commited card. |
pkg/auth/prometheus/metrics.go
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| @@ -0,0 +1,36 @@ | |||
| package prometheus | |||
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Call this package "metrics", we have no plans to support an alternate metrics sysem
pkg/auth/prometheus/metrics.go
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| ) | ||
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| const ( | ||
| AuthSubsystem = "auth_subsystem" |
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Private unless there is another reason.
Use "openshift_auth" to better describe (subsystem is redundant in public metrics
pkg/auth/prometheus/metrics.go
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| prometheus.MustRegister(authCounterResult) | ||
| } | ||
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| func UpdateAuthCounters(result string) { |
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Generally we don't abstract metrics recording like this. Call this method "record"
Signed-off-by: Matt Rogers <[email protected]>
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@smarterclayton updated, and rebased. |
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/retest |
1 similar comment
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/retest |
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flake #15900 |
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/retest |
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/test all |
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flake #16273 |
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/retest |
| user, ok, err := l.auth.AuthenticatePassword(username, password) | ||
| if err != nil { | ||
| glog.Errorf(`Error authenticating %q with provider %q: %v`, username, l.provider, err) | ||
| failed(errorpage.AuthenticationErrorCode(err), w, req) | ||
| result = "error" |
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I 'd prefer the result be a constant
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Generally we don't create constants for single use variables.
| var result string | ||
| defer func() { | ||
| metrics.Record(result) | ||
| }() | ||
| user, ok, err := l.auth.AuthenticatePassword(username, password) | ||
| if err != nil { | ||
| glog.Errorf(`Error authenticating %q with provider %q: %v`, username, l.provider, err) |
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Note, this should be utilruntime.HandleError(...), not glog.Errorf().
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I opened a separate PR for that.
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/lgtm |
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[APPROVALNOTIFIER] This PR is APPROVED This pull-request has been approved by: mrogers950, smarterclayton The full list of commands accepted by this bot can be found here.
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Automatic merge from submit-queue (batch tested with PRs 16411, 16139, 16430, 16435, 15794) |
Automatic merge from submit-queue (batch tested with PRs 16411, 16139, 16430, 16435, 15794) Add Prometheus metrics for authentication attempts @openshift/sig-security
@openshift/sig-security