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Introduction
The following article will help address the x509: certificate has expired or is not yet valid
error message associated with the connect-injector
and controller
pods in Kubernetes.
Problem
The connect-injector
and controller
pods experience a recurring issue where they go into a crashloopback
state.
- This issue is accompanied by the following error message:
Internal error occurred: failed calling webhook "consul-connect-injector.consul.hashicorp.com": failed to call webhook: Post "https:/consul-connect-injector.consul.svc:443/mutate?timeout=10s': x509: certificate has expired or is not yet valid.
General Flow
Causes
The issue of connect-injector
and controller
pods encountering crashloopback
errors with the specified message can be attributed to the following causes:
-
Kubernetes Resource Contention
-
Resource contention within the Kubernetes cluster may impede the creation and renewal of certificates.
-
-
Kube API Issues
-
Problems with the Kubernetes API can disrupt the proper functioning of the webhook and certificate management.
-
Solution
To rectify the issue and resolve the crashloopback
scenario, follow these steps:
- Restart the
consul-webhook-cert-manager
pod.- This action initiates the creation of a fresh certificate authority (CA) for the
consul-connect-injector
mutating webhook. -
Based on the new CA, a new secret named
consul-connect-inject-webhook-cert
should be automatically generated within the consul namespace.
- This action initiates the creation of a fresh certificate authority (CA) for the
- Review the logs to verify the
x509: certificate has expired or is not yet valid
error message no longer appears and theconnect-injector
pod is no longer showing in acrashloopback
status.
Outcome
By adhering to the aforementioned solution, users can effectively mitigate the failed to call webhook x509 certificate expired or not yet valid
error message associated with the consul-connect-injector
and consul-controller
pods