Audit Policy
Audit policy defines rules about what events should be recorded and what data they should include. The audit policy object structure is defined in the audit.k8s.io API group. When an event is processe
Last updated
Audit policy defines rules about what events should be recorded and what data they should include. The audit policy object structure is defined in the audit.k8s.io API group. When an event is processe
Last updated
[root@m-k8s ~]# cat /var/log/kubernetes/kubernetes.audit | more
{"kind":"Event","apiVersion":"audit.k8s.io/v1","level":"Metadata","auditID":"f9e91b43-77c3-4622-9d2a-13838f0f4984","stage":"ResponseComplete","requestURI":"/apis/coordination.k8s.io/v1/namespaces/kube-system/lea
ses/kube-controller-manager?timeout=5s","verb":"get","user":{"username":"system:kube-controller-manager","groups":["system:authenticated"]},"sourceIPs":["192.168.1.10"],"userAgent":"kube-controller-manager/v1.22
.0 (linux/amd64) kubernetes/c2b5237/leader-election","objectRef":{"resource":"leases","namespace":"kube-system","name":"kube-controller-manager","apiGroup":"coordination.k8s.io","apiVersion":"v1"},"responseStatu
s":{"metadata":{},"status":"Failure","reason":"Forbidden","code":403},"requestReceivedTimestamp":"2021-09-13T10:00:06.493243Z","stageTimestamp":"2021-09-13T10:00:06.581845Z","annotations":{"authorization.k8s.io/
decision":"forbid","authorization.k8s.io/reason":""}}
{"kind":"Event","apiVersion":"audit.k8s.io/v1","level":"Request","auditID":"41133c9d-ed47-48ba-8fdf-613a72adba18","stage":"ResponseComplete","requestURI":"/apis/storage.k8s.io/v1/storageclasses?limit=500\u0026re
sourceVersion=0","verb":"list","user":{"username":"system:apiserver","uid":"def46273-989c-4460-89c3-b84589f691c8","groups":["system:masters"]},"sourceIPs":["127.0.0.1"],"userAgent":"kube-apiserver/v1.22.0 (linux
/amd64) kubernetes/c2b5237","objectRef":{"resource":"storageclasses","apiGroup":"storage.k8s.io","apiVersion":"v1"},"responseStatus":{"metadata":{},"code":200},"requestReceivedTimestamp":"2021-09-13T10:00:06.602
391Z","stageTimestamp":"2021-09-13T10:00:06.608894Z","annotations":{"authorization.k8s.io/decision":"allow","authorization.k8s.io/reason":""}}
{"kind":"Event","apiVersion":"audit.k8s.io/v1","level":"Metadata","auditID":"473efcdb-dd39-4f41-bf17-79883bb689e0","stage":"ResponseComplete","requestURI":"/apis/apiextensions.k8s.io/v1/customresourcedefinitions
?limit=500\u0026resourceVersion=0","verb":"list","user":{"username":"system:apiserver","uid":"def46273-989c-4460-89c3-b84589f691c8","groups":["system:masters"]},"sourceIPs":["127.0.0.1"],"userAgent":"kube-apiser
ver/v1.22.0 (linux/amd64) kubernetes/c2b5237","objectRef":{"resource":"customresourcedefinitions","apiGroup":"apiextensions.k8s.io","apiVersion":"v1"},"responseStatus":{"metadata":{},"code":200},"requestReceived
Timestamp":"2021-09-13T10:00:06.609632Z","stageTimestamp":"2021-09-13T10:00:06.622899Z","annotations":{"authorization.k8s.io/decision":"allow","authorization.k8s.io/reason":""}}
{"kind":"Event","apiVersion":"audit.k8s.io/v1","level":"Metadata","auditID":"b03b2bec-3636-4480-9819-10e21eb68723","stage":"ResponseComplete","requestURI":"/apis/apiregistration.k8s.io/v1/apiservices?limit=500\u
0026resourceVersion=0","verb":"list","user":{"username":"system:apiserver","uid":"def46273-989c-4460-89c3-b84589f691c8","groups":["system:masters"]},"sourceIPs":["127.0.0.1"],"userAgent":"kube-apiserver/v1.22.0
(linux/amd64) kubernetes/c2b5237","objectRef":{"resource":"apiservices","apiGroup":"apiregistration.k8s.io","apiVersion":"v1"},"responseStatus":{"metadata":{},"code":200},"requestReceivedTimestamp":"2021-09-13T1
0:00:06.617566Z","stageTimestamp":"2021-09-13T10:00:06.623058Z","annotations":{"authorization.k8s.io/decision":"allow","authorization.k8s.io/reason":""}}
{"kind":"Event","apiVersion":"audit.k8s.io/v1","level":"Metadata","auditID":"7b712e38-424e-4e1a-8c38-ace61cf2da6b","stage":"ResponseComplete","requestURI":"/api/v1/namespaces/kube-system/configmaps?limit=500\u00
26resourceVersion=0","verb":"list","user":{"username":"system:apiserver","uid":"def46273-989c-4460-89c3-b84589f691c8","groups":["system:masters"]},"sourceIPs":["127.0.0.1"],"userAgent":"kube-apiserver/v1.22.0 (l
inux/amd64) kubernetes/c2b5237","objectRef":{"resource":"configmaps","namespace":"kube-system","apiVersion":"v1"},"responseStatus":{"metadata":{},"code":200},"requestReceivedTimestamp":"2021-09-13T10:00:06.61827
1Z","stageTimestamp":"2021-09-13T10:00:06.623160Z","annotations":{"authorization.k8s.io/decision":"allow","authorization.k8s.io/reason":""}}
{"kind":"Event","apiVersion":"audit.k8s.io/v1","level":"Request","auditID":"6c1aae46-9021-4957-8992-7a25390e8144","stage":"ResponseComplete","requestURI":"/api/v1/nodes?limit=500\u0026resourceVersion=0","verb":"
list","user":{"username":"system:kube-scheduler","groups":["system:authenticated"]},"sourceIPs":["192.168.1.10"],"userAgent":"kube-scheduler/v1.22.0 (linux/amd64) kubernetes/c2b5237/scheduler","objectRef":{"reso
urce":"nodes","apiVersion":"v1"},"responseStatus":{"metadata":{},"status":"Failure","reason":"Forbidden","code":403},"requestReceivedTimestamp":"2021-09-13T10:00:06.652170Z","stageTimestamp":"2021-09-13T10:00:06
.652818Z","annotations":{"authorization.k8s.io/decision":"forbid","authorization.k8s.io/reason":""}}
{"kind":"Event","apiVersion":"audit.k8s.io/v1","level":"Request","auditID":"56d7a258-2736-4162-8e09-e2f50acba85d","stage":"ResponseComplete","requestURI":"/api/v1/pods?fieldSelector=status.phase%21%3DSucceeded%2
Cstatus.phase%21%3DFailed\u0026limit=500\u0026resourceVersion=0","verb":"list","user":{"username":"system:kube-scheduler","groups":["system:authenticated"]},"sourceIPs":["192.168.1.10"],"userAgent":"kube-schedul
er/v1.22.0 (linux/amd64) kubernetes/c2b5237/scheduler","objectRef":{"resource":"pods","apiVersion":"v1"},"responseStatus":{"metadata":{},"status":"Failure","reason":"Forbidden","code":403},"requestReceivedTimest
amp":"2021-09-13T10:00:06.653308Z","stageTimestamp":"2021-09-13T10:00:06.654013Z","annotations":{"authorization.k8s.io/decision":"forbid","authorization.k8s.io/reason":""}}
{"kind":"Event","apiVersion":"audit.k8s.io/v1","level":"Metadata","auditID":"3e7440c0-b31f-4001-9fef-4af71498b18d","stage":"ResponseStarted","requestURI":"/api/v1/namespaces/kube-system/configmaps?allowWatchBook
marks=true\u0026fieldSelector=metadata.name%3Dkube-root-ca.crt\u0026resourceVersion=1454089\u0026timeout=6m30s\u0026timeoutSeconds=390\u0026watch=true","verb":"watch","user":{"username":"system:node:w1-k8s","gro
ups":["system:nodes","system:authenticated"]},"sourceIPs":["192.168.1.101"],"userAgent":"kubelet/v1.22.0 (linux/amd64) kubernetes/c2b5237","objectRef":{"resource":"configmaps","namespace":"kube-system","name":"k
ube-root-ca.crt","apiVersion":"v1"},"responseStatus":{"metadata":{},"status":"Failure","reason":"Forbidden","code":403},"requestReceivedTimestamp":"2021-09-13T10:00:06.655851Z","stageTimestamp":"2021-09-13T10:00
:06.656464Z","annotations":{"authorization.k8s.io/decision":"forbid","authorization.k8s.io/reason":"no relationship found between node 'w1-k8s' and this object"}}
{"kind":"Event","apiVersion":"audit.k8s.io/v1","level":"Metadata","auditID":"3e7440c0-b31f-4001-9fef-4af71498b18d","stage":"ResponseComplete","requestURI":"/api/v1/namespaces/kube-system/configmaps?allowWatchBoo
kmarks=true\u0026fieldSelector=metadata.name%3Dkube-root-ca.crt\u0026resourceVersion=1454089\u0026timeout=6m30s\u0026timeoutSeconds=390\u0026watch=true","verb":"watch","user":{"username":"system:node:w1-k8s","gr
oups":["system:nodes","system:authenticated"]},"sourceIPs":["192.168.1.101"],"userAgent":"kubelet/v1.22.0 (linux/amd64) kubernetes/c2b5237","objectRef":{"resource":"configmaps","namespace":"kube-system","name":"
kube-root-ca.crt","apiVersion":"v1"},"responseStatus":{"metadata":{},"status":"Failure","reason":"Forbidden","code":403},"requestReceivedTimestamp":"2021-09-13T10:00:06.655851Z","stageTimestamp":"2021-09-13T10:0
0:06.656714Z","annotations":{"authorization.k8s.io/decision":"forbid","authorization.k8s.io/reason":"no relationship found between node 'w1-k8s' and this object"}}
{"kind":"Event","apiVersion":"audit.k8s.io/v1","level":"RequestResponse","auditID":"da76ae52-52ef-47e7-b52f-848aebdcb5a5","stage":"ResponseComplete","requestURI":"/api/v1/namespaces/ingress-nginx/serviceaccounts
/ingress-nginx/token","verb":"create","user":{"username":"system:node:w1-k8s","groups":["system:nodes","system:authenticated"]},"sourceIPs":["192.168.1.101"],"userAgent":"kubelet/v1.22.0 (linux/amd64) kubernetes
/c2b5237","objectRef":{"resource":"serviceaccounts","namespace":"ingress-nginx","name":"ingress-nginx","apiVersion":"v1","subresource":"token"},"responseStatus":{"metadata":{},"status":"Failure","reason":"Forbid
den","code":403},"responseObject":{"kind":"Status","apiVersion":"v1","metadata":{},"status":"Failure","message":"serviceaccounts \"ingress-nginx\" is forbidden: User \"system:node:w1-k8s\" cannot create resource
\"serviceaccounts/token\" in API group \"\" in the namespace \"ingress-nginx\": no relationship found between node 'w1-k8s' and this object","reason":"Forbidden","details":{"name":"ingress-nginx","kind":"servic
eaccounts"},"code":403},"requestReceivedTimestamp":"2021-09-13T10:00:06.658111Z","stageTimestamp":"2021-09-13T10:00:06.658893Z","annotations":{"authorization.k8s.io/decision":"forbid","authorization.k8s.io/reaso
n":"no relationship found between node 'w1-k8s' and this object"}}
<snipped>it looks very big even it is testing environment)
[root@m-k8s ~]# ls -rlth /var/log/kubernetes/kubernetes.audit
-rw-------. 1 root root 4.2M Sep 13 19:03 /var/log/kubernetes/kubernetes.audit
<time goes by but nothing to do>
[root@m-k8s ~]# ls -rlth /var/log/kubernetes/kubernetes.audit
-rw-------. 1 root root 7.3M Sep 13 19:10 /var/log/kubernetes/kubernetes.audit
