leader-election.yaml

# Copyright 2020 The Knative Authors
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

apiVersion: v1
kind: ConfigMap
metadata:
  name: config-leader-election
  namespace: knative-serving
  labels:
    app.kubernetes.io/name: knative-serving
    app.kubernetes.io/component: controller
    app.kubernetes.io/version: devel
  annotations:
    knative.dev/example-checksum: "f4b71f57"
data:
  _example: |
    ################################
    #                              #
    #    EXAMPLE CONFIGURATION     #
    #                              #
    ################################

    # This block is not actually functional configuration,
    # but serves to illustrate the available configuration
    # options and document them in a way that is accessible
    # to users that `kubectl edit` this config map.
    #
    # These sample configuration options may be copied out of
    # this example block and unindented to be in the data block
    # to actually change the configuration.

    # lease-duration is how long non-leaders will wait to try to acquire the
    # lock; 15 seconds is the value used by core kubernetes controllers.
    lease-duration: "60s"

    # renew-deadline is how long a leader will try to renew the lease before
    # giving up; 10 seconds is the value used by core kubernetes controllers.
    renew-deadline: "40s"

    # retry-period is how long the leader election client waits between tries of
    # actions; 2 seconds is the value used by core kubernetes controllers.
    retry-period: "10s"

    # buckets is the number of buckets used to partition key space of each
    # Reconciler. If this number is M and the replica number of the controller
    # is N, the N replicas will compete for the M buckets. The owner of a
    # bucket will take care of the reconciling for the keys partitioned into
    # that bucket.
    buckets: "1"