apiVersion: fluentbit.fluent.io/v1alpha2 kind: ClusterParser metadata: name: k8s-custom-tag labels: fluentbit.fluent.io/enabled: "true" spec: regex: regex: '^(?[a-z0-9]([-a-z0-9]*[a-z0-9])?(\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*)_(?[^_]+)_(?.+)_(?.+)$'