Solution Architect | Technical Content Writer
(a consistent and highly-available key value store used as Kubernetes’ backing store for all cluster data). Some relevant Admission Controllers to secure running containers are:
commands from privileged containers are blocked.
, ensuring that it can only modify pods that are bound to it and its own Node object.
can modify. In order to be limited by this admission controller,
must use credentials in the
group, with a username in the form
will only be allowed to modify their own
admission plugin prevents
from deleting its
object, and enforces
modification of labels under the
prefixes as follows:
to add/remove/update these labels and label prefixes:
from adding/removing/updating labels with a
prefix. This label prefix is reserved for administrators to label their
objects for workload isolation purposes, and
will not be allowed to modify labels with that prefix.
is reserved, and may be disallowed or allowed by the
admission plugin in the future.
have the minimal set of permissions required to operate correctly.
takes a comma-delimited list of admission control plugins to invoke prior to modifying objects in the cluster. For instance, the following command line enables the
admission control plugins:
Note: Depending on the way your Kubernetes cluster is deployed and how the API server is started, you may need to apply the setting in different ways. For instance, you may have to modify theunit file if the API is deployed as a
systemdservice; while you may have to modify the manifest file for the API server if Kubernetes is deployed in a self-hosted way.