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Promote Local storage capacity isolation feature to GA

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This change is to promote local storage capacity isolation feature to GA

At the same time, to allow rootless system disable this feature due to
unable to get root fs, this change introduced a new kubelet config
"localStorageCapacityIsolation". By default it is set to true. For
rootless systems, they can set this configuration to false to disable
the feature. Once it is set, user cannot set ephemeral-storage
request/limit because capacity and allocatable will not be set.

Change-Id: I48a52e737c6a09e9131454db6ad31247b56c000a
This commit is contained in:
jinxu
2022-07-28 08:03:20 -07:00
parent bc4c4930ff
commit 0064010cdd
42 changed files with 267 additions and 383 deletions
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2
hack/local-up-cluster.sh
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@@ -237,6 +237,7 @@ CPU_CFS_QUOTA=${CPU_CFS_QUOTA:-true}
ENABLE_HOSTPATH_PROVISIONER=${ENABLE_HOSTPATH_PROVISIONER:-"false"}
CLAIM_BINDER_SYNC_PERIOD=${CLAIM_BINDER_SYNC_PERIOD:-"15s"} # current k8s default
ENABLE_CONTROLLER_ATTACH_DETACH=${ENABLE_CONTROLLER_ATTACH_DETACH:-"true"} # current default
LOCAL_STORAGE_CAPACITY_ISOLATION=${LOCAL_STORAGE_CAPACITY_ISOLATION:-"true"} # current default
# This is the default dir and filename where the apiserver will generate a self-signed cert
# which should be able to be used as the CA to verify itself
CERT_DIR=${CERT_DIR:-"/var/run/kubernetes"}
@@ -754,6 +755,7 @@ cgroupRoot: "${CGROUP_ROOT}"
cgroupsPerQOS: ${CGROUPS_PER_QOS}
cpuCFSQuota: ${CPU_CFS_QUOTA}
enableControllerAttachDetach: ${ENABLE_CONTROLLER_ATTACH_DETACH}
localStorageCapacityIsolation: ${LOCAL_STORAGE_CAPACITY_ISOLATION}
evictionPressureTransitionPeriod: "${EVICTION_PRESSURE_TRANSITION_PERIOD}"
failSwapOn: ${FAIL_SWAP_ON}
port: ${KUBELET_PORT}