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Vault Helm DeploymentAudit logging

· One min read
Aurelian Shuttleworth
Aurelian Shuttleworth
Site Reliability Engineer

The chart in question is the Hashicorp Vault Chart

Audit Log Persistent Volume (PV)​

note

The Audit PV will not be used unless you configure vault to write to it.

vault audit enable file file_path=<server.auditStorage.mountPath>/vault_audit.log
Log Rotation

A possible way to implement reliable log rotation would be to add a side car log rotator like honestbee/logrotate

Enabling Audit logging to PV Can't be easier, simpy setting server.auditStorage.enabled to true will generate a PV and mount it on all vault pods.

Helm Values​

server:
  auditStorage:
    enabled: false
    # Size of the PVC created
    size: 10Gi
    # Location where the PVC will be mounted.
    mountPath: "/vault/audit"
    # Name of the storage class to use.  If null it will use the
    # configured default Storage Class.
    storageClass: null
    # Access Mode of the storage device being used for the PVC
    accessMode: ReadWriteOnce
    # Annotations to apply to the PVC
    annotations: { }

Problems​

  • Vault does not handle log rotation
  • Has to be configured after vault init
  • Potential issues from HA configuration