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CA mesh CA expiration to it's own section

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This is part of an effort to raise awareness that you need to monitor
your mesh CA if coming from an external source as you'll need to manage
the rotation.
pull/16852/head^2
John Eikenberry 2 years ago committed by GitHub
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website/content/docs/agent/telemetry.mdx
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@ -89,6 +89,24 @@ These are some metrics emitted that can help you understand the health of your c
**What to look for:** For a healthy cluster, you're looking for a `lastContact` lower than 200ms, `leader` > 0 and `candidate` == 0. Deviations from this might indicate flapping leadership. **What to look for:** For a healthy cluster, you're looking for a `lastContact` lower than 200ms, `leader` > 0 and `candidate` == 0. Deviations from this might indicate flapping leadership.
### Certificate Authority Expiration
| Metric Name | Description | Unit | Type |
| :------------------------- | :---------------------------------------------------------------------------------- | :------ | :---- |
| `consul.mesh.active-root-ca.expiry` | The number of seconds until the root CA expires, updated every hour. | seconds | gauge |
| `consul.mesh.active-signing-ca.expiry` | The number of seconds until the signing CA expires, updated every hour. | seconds | gauge |
** Why they're important:** Consul Mesh requires a CA to sign all certificates
used to connect the mesh and the mesh network ceases to work if they expire and
become invalid. The Root is particularly important to monitor as Consul does
not automatically rotate it.
** What to look for:** The Root CA should be monitored for an approaching
expiration, to indicate it is time for you to rotate the "root" CA either manually or with external automation.
The signing (intermediate) certificate should be
rotated automatically by Consul, but should be monitored in case of rotation isn't working;
in this scenario, check the server agent logs for messages related to the CA system.
### Autopilot ### Autopilot
| Metric Name | Description | Unit | Type | | Metric Name | Description | Unit | Type |
@ -670,8 +688,6 @@ are allowed for <EnterpriseAlert inline />.
| `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.active-root-ca.expiry` | The number of seconds until the root CA expires, updated every hour. | seconds | gauge |
| `consul.mesh.active-signing-ca.expiry` | The number of seconds until the signing CA expires, updated every hour. | seconds | gauge |
| `consul.agent.tls.cert.expiry` | The number of seconds until the Agent TLS certificate expires, updated every hour. | seconds | gauge | | `consul.agent.tls.cert.expiry` | The number of seconds until the Agent TLS certificate expires, updated every hour. | seconds | gauge |
## Connect Built-in Proxy Metrics ## Connect Built-in Proxy Metrics

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