c43331d67a
* add preStop hook to trigger Fast Shutdown * disable readiness probe by default When Kubernetes terminates a pod, the container runtime typically sends a SIGTERM signal to pid 1 in each container [0]. PostgreSQL interprets SIGTERM as a request to do a "Smart Shutdown" [1]. This can take minutes (often exhausting the termination grace period), and during this time, new connections are not being serviced. Now that postgresql has a single replica, this behavior is undesirable. If we kill the pod (e.g. in an upgrade), we probably want it to come back as soon as possible. This change adds a preStop hook that sends a SIGINT to postgresql in order to trigger a "Fast Shutdown". In addition, the readiness probe is disabled by default, since it adds no value in a single-replica scenario. 0: https://kubernetes.io/docs/concepts/workloads/pods/pod-lifecycle/#pod-termination 1: https://www.postgresql.org/docs/9.6/server-shutdown.html Change-Id: Ib5f3d2a49e55332604c91f9a011e87d78947dbef
26 lines
834 B
YAML
26 lines
834 B
YAML
# 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
|
|
#
|
|
# http://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
|
|
appVersion: v9.6
|
|
description: OpenStack-Helm PostgreSQL
|
|
name: postgresql
|
|
version: 0.1.5
|
|
home: https://www.postgresql.org
|
|
sources:
|
|
- https://github.com/postgres/postgres
|
|
- https://opendev.org/openstack/openstack-helm
|
|
maintainers:
|
|
- name: OpenStack-Helm Authors
|
|
...
|