config-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-sinks
  labels:
    contrib.eventing.knative.dev/release: devel
data:
  # An inactive but valid configuration follows; see example.
  resourceLock: "leases"
  leaseDuration: "15s"
  renewDeadline: "10s"
  retryPeriod: "2s"
  _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.

    # resourceLock controls which API resource is used as the basis for the
    # leader election lock. Valid values are:
    #
    # - leases -> use the coordination API
    # - configmaps -> use configmaps
    # - endpoints -> use endpoints
    resourceLock: "leases"

    # leaseDuration is how long non-leaders will wait to try to acquire the
    # lock; 15 seconds is the value used by core kubernetes controllers.
    leaseDuration: "15s"
    # renewDeadline is how long a leader will try to renew the lease before
    # giving up; 10 seconds is the value used by core kubernetes controllers.
    renewDeadline: "10s"
    # retryPeriod is how long the leader election client waits between tries of
    # actions; 2 seconds is the value used by core kuberntes controllers.
    retryPeriod: "2s"
    # enabledComponents is a comma-delimited list of component names for which
    # leader election is enabled. Valid values are:
    #
    # - redis-stream-controller
    enabledComponents: "redis-stream-controller"