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Update metric name 

and handle the case where there is no active root CA.
This commit is contained in:
Daniel Nephin 2021-06-14 17:00:45 -04:00
parent 1c980e4700
commit aec7e798b0
3 changed files with 7 additions and 4 deletions
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2
.changelog/9924.txt
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@ -1,4 +1,4 @@
```release-note:improvement ```release-note:improvement
telemetry: add a new `mesh.root-ca.expiry` metric for tracking when the root certificate expires. telemetry: add a new `mesh.active-root-ca.expiry` metric for tracking when the root certificate expires.
``` ```

7
agent/consul/leader_metrics.go
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@ -19,7 +19,7 @@ var CertExpirationGauges = []prometheus.GaugeDefinition{
}, },
} }
var metricsKeyMeshRootCAExpiry = []string{"mesh", "root-ca", "expiry"} var metricsKeyMeshRootCAExpiry = []string{"mesh", "active-root-ca", "expiry"}
func rootCAExpiryMonitor(s *Server) certExpirationMonitor { func rootCAExpiryMonitor(s *Server) certExpirationMonitor {
return certExpirationMonitor{ return certExpirationMonitor{
@ -31,8 +31,11 @@ func rootCAExpiryMonitor(s *Server) certExpirationMonitor {
Query: func() (time.Duration, error) { Query: func() (time.Duration, error) {
state := s.fsm.State() state := s.fsm.State()
_, root, err := state.CARootActive(nil) _, root, err := state.CARootActive(nil)
if err != nil { switch {
case err != nil:
return 0, fmt.Errorf("failed to retrieve root CA: %w", err) return 0, fmt.Errorf("failed to retrieve root CA: %w", err)
case root == nil:
return 0, fmt.Errorf("no active root CA")
} }
return time.Until(root.NotAfter), nil return time.Until(root.NotAfter), nil

2
website/content/docs/agent/telemetry.mdx
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@ -478,7 +478,7 @@ These metrics give insight into the health of the cluster as a whole.
| `consul.catalog.connect.query-tag..` | Increments for each connect-based catalog query for the given service with the given tag. | queries | counter | | `consul.catalog.connect.query-tag..` | Increments for each connect-based catalog query for the given service with the given tag. | queries | counter |
| `consul.catalog.connect.query-tags..` | Increments for each connect-based catalog query for the given service with the given tags. | queries | counter | | `consul.catalog.connect.query-tags..` | Increments for each connect-based catalog query for the given service with the given tags. | queries | counter |
| `consul.catalog.connect.not-found.` | Increments for each connect-based catalog query where the given service could not be found. | queries | counter | | `consul.catalog.connect.not-found.` | Increments for each connect-based catalog query where the given service could not be found. | queries | counter |
| `consul.mesh.root-ca.expiry` | The number of seconds until the root CA expires, updated every hour. | seconds | gauge | | `consul.mesh.active-root-ca.expiry` | The number of seconds until the root CA expires, updated every hour. | seconds | gauge |
## Connect Built-in Proxy Metrics ## Connect Built-in Proxy Metrics