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Switch language name 'zh' to 'zh-cn'

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This is the first step to rename 'zh' to 'zh-cn'. There are several reasons why we rename the language name.

- The upstream docsy theme changed the language name, leading to many warnings during site build;
  The side-effect is that the i18n strings are no longer working.
- We believe renaming the language is the right thing to do, because this move can make room for other variants of Chinese language, such as 'zh-tw', 'zh-sg' etc.

There would be several follow-ups to this PR, such as fixing the intra-site links, adding redirects etc.

We will lock up changes to zh/zh-cn pages for the moment, until this one gets in.

This PR is based on commit cdad0a7342.
This commit is contained in:
Qiming Teng
2022-06-10 20:25:27 +08:00
parent 3d345b1816
commit c52818c03d
1347 changed files with 8 additions and 6 deletions
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content/zh-cn/examples/application/cassandra/cassandra-service.yaml
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apiVersion: v1
kind: Service
metadata:
labels:
app: cassandra
name: cassandra
spec:
clusterIP: None
ports:
- port: 9042
selector:
app: cassandra
content/zh-cn/examples/application/cassandra/cassandra-statefulset.yaml
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apiVersion: apps/v1
kind: StatefulSet
metadata:
name: cassandra
labels:
app: cassandra
spec:
serviceName: cassandra
replicas: 3
selector:
matchLabels:
app: cassandra
template:
metadata:
labels:
app: cassandra
spec:
terminationGracePeriodSeconds: 1800
containers:
- name: cassandra
image: gcr.io/google-samples/cassandra:v13
imagePullPolicy: Always
ports:
- containerPort: 7000
name: intra-node
- containerPort: 7001
name: tls-intra-node
- containerPort: 7199
name: jmx
- containerPort: 9042
name: cql
resources:
limits:
cpu: "500m"
memory: 1Gi
requests:
cpu: "500m"
memory: 1Gi
securityContext:
capabilities:
add:
- IPC_LOCK
lifecycle:
preStop:
exec:
command:
- /bin/sh
- -c
- nodetool drain
env:
- name: MAX_HEAP_SIZE
value: 512M
- name: HEAP_NEWSIZE
value: 100M
- name: CASSANDRA_SEEDS
value: "cassandra-0.cassandra.default.svc.cluster.local"
- name: CASSANDRA_CLUSTER_NAME
value: "K8Demo"
- name: CASSANDRA_DC
value: "DC1-K8Demo"
- name: CASSANDRA_RACK
value: "Rack1-K8Demo"
- name: POD_IP
valueFrom:
fieldRef:
fieldPath: status.podIP
readinessProbe:
exec:
command:
- /bin/bash
- -c
- /ready-probe.sh
initialDelaySeconds: 15
timeoutSeconds: 5
# These volume mounts are persistent. They are like inline claims,
# but not exactly because the names need to match exactly one of
# the stateful pod volumes.
volumeMounts:
- name: cassandra-data
mountPath: /cassandra_data
# These are converted to volume claims by the controller
# and mounted at the paths mentioned above.
# do not use these in production until ssd GCEPersistentDisk or other ssd pd
volumeClaimTemplates:
- metadata:
name: cassandra-data
spec:
accessModes: [ "ReadWriteOnce" ]
storageClassName: fast
resources:
requests:
storage: 1Gi
---
kind: StorageClass
apiVersion: storage.k8s.io/v1
metadata:
name: fast
provisioner: k8s.io/minikube-hostpath
parameters:
type: pd-ssd
content/zh-cn/examples/application/deployment-patch.yaml
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apiVersion: apps/v1
kind: Deployment
metadata:
name: patch-demo
spec:
replicas: 2
selector:
matchLabels:
app: nginx
template:
metadata:
labels:
app: nginx
spec:
containers:
- name: patch-demo-ctr
image: nginx
tolerations:
- effect: NoSchedule
key: dedicated
value: test-team
content/zh-cn/examples/application/deployment-retainkeys.yaml
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apiVersion: apps/v1
kind: Deployment
metadata:
name: retainkeys-demo
spec:
selector:
matchLabels:
app: nginx
strategy:
rollingUpdate:
maxSurge: 30%
template:
metadata:
labels:
app: nginx
spec:
containers:
- name: retainkeys-demo-ctr
image: nginx
content/zh-cn/examples/application/deployment-scale.yaml
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apiVersion: apps/v1
kind: Deployment
metadata:
name: nginx-deployment
spec:
selector:
matchLabels:
app: nginx
replicas: 4 # Update the replicas from 2 to 4
template:
metadata:
labels:
app: nginx
spec:
containers:
- name: nginx
image: nginx:1.14.2
ports:
- containerPort: 80
content/zh-cn/examples/application/deployment-update.yaml
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apiVersion: apps/v1
kind: Deployment
metadata:
name: nginx-deployment
spec:
selector:
matchLabels:
app: nginx
replicas: 2
template:
metadata:
labels:
app: nginx
spec:
containers:
- name: nginx
image: nginx:1.16.1 # Update the version of nginx from 1.14.2 to 1.16.1
ports:
- containerPort: 80
content/zh-cn/examples/application/deployment.yaml
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apiVersion: apps/v1
kind: Deployment
metadata:
name: nginx-deployment
spec:
selector:
matchLabels:
app: nginx
replicas: 2 # tells deployment to run 2 pods matching the template
template:
metadata:
labels:
app: nginx
spec:
containers:
- name: nginx
image: nginx:1.14.2
ports:
- containerPort: 80
content/zh-cn/examples/application/guestbook/frontend-deployment.yaml
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# SOURCE: https://cloud.google.com/kubernetes-engine/docs/tutorials/guestbook
apiVersion: apps/v1
kind: Deployment
metadata:
name: frontend
spec:
replicas: 3
selector:
matchLabels:
app: guestbook
tier: frontend
template:
metadata:
labels:
app: guestbook
tier: frontend
spec:
containers:
- name: php-redis
image: gcr.io/google_samples/gb-frontend:v5
env:
- name: GET_HOSTS_FROM
value: "dns"
resources:
requests:
cpu: 100m
memory: 100Mi
ports:
- containerPort: 80
content/zh-cn/examples/application/guestbook/frontend-service.yaml
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# SOURCE: https://cloud.google.com/kubernetes-engine/docs/tutorials/guestbook
apiVersion: v1
kind: Service
metadata:
name: frontend
labels:
app: guestbook
tier: frontend
spec:
# if your cluster supports it, uncomment the following to automatically create
# an external load-balanced IP for the frontend service.
# type: LoadBalancer
#type: LoadBalancer
ports:
# the port that this service should serve on
- port: 80
selector:
app: guestbook
tier: frontend
content/zh-cn/examples/application/guestbook/redis-follower-deployment.yaml
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# SOURCE: https://cloud.google.com/kubernetes-engine/docs/tutorials/guestbook
apiVersion: apps/v1
kind: Deployment
metadata:
name: redis-follower
labels:
app: redis
role: follower
tier: backend
spec:
replicas: 2
selector:
matchLabels:
app: redis
template:
metadata:
labels:
app: redis
role: follower
tier: backend
spec:
containers:
- name: follower
image: gcr.io/google_samples/gb-redis-follower:v2
resources:
requests:
cpu: 100m
memory: 100Mi
ports:
- containerPort: 6379
content/zh-cn/examples/application/guestbook/redis-follower-service.yaml
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# SOURCE: https://cloud.google.com/kubernetes-engine/docs/tutorials/guestbook
apiVersion: v1
kind: Service
metadata:
name: redis-follower
labels:
app: redis
role: follower
tier: backend
spec:
ports:
# the port that this service should serve on
- port: 6379
selector:
app: redis
role: follower
tier: backend
content/zh-cn/examples/application/guestbook/redis-leader-deployment.yaml
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# SOURCE: https://cloud.google.com/kubernetes-engine/docs/tutorials/guestbook
apiVersion: apps/v1
kind: Deployment
metadata:
name: redis-leader
labels:
app: redis
role: leader
tier: backend
spec:
replicas: 1
selector:
matchLabels:
app: redis
template:
metadata:
labels:
app: redis
role: leader
tier: backend
spec:
containers:
- name: leader
image: "docker.io/redis:6.0.5"
resources:
requests:
cpu: 100m
memory: 100Mi
ports:
- containerPort: 6379
content/zh-cn/examples/application/guestbook/redis-leader-service.yaml
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# SOURCE: https://cloud.google.com/kubernetes-engine/docs/tutorials/guestbook
apiVersion: v1
kind: Service
metadata:
name: redis-leader
labels:
app: redis
role: leader
tier: backend
spec:
ports:
- port: 6379
targetPort: 6379
selector:
app: redis
role: leader
tier: backend
content/zh-cn/examples/application/hpa/php-apache.yaml
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apiVersion: autoscaling/v1
kind: HorizontalPodAutoscaler
metadata:
name: php-apache
spec:
scaleTargetRef:
apiVersion: apps/v1
kind: Deployment
name: php-apache
minReplicas: 1
maxReplicas: 10
targetCPUUtilizationPercentage: 50
content/zh-cn/examples/application/job/cronjob.yaml
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apiVersion: batch/v1
kind: CronJob
metadata:
name: hello
spec:
schedule: "* * * * *"
jobTemplate:
spec:
template:
spec:
containers:
- name: hello
image: busybox:1.28
imagePullPolicy: IfNotPresent
command:
- /bin/sh
- -c
- date; echo Hello from the Kubernetes cluster
restartPolicy: OnFailure
content/zh-cn/examples/application/job/indexed-job-vol.yaml
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apiVersion: batch/v1
kind: Job
metadata:
name: 'indexed-job'
spec:
completions: 5
parallelism: 3
completionMode: Indexed
template:
spec:
restartPolicy: Never
containers:
- name: 'worker'
image: 'docker.io/library/busybox'
command:
- "rev"
- "/input/data.txt"
volumeMounts:
- mountPath: /input
name: input
volumes:
- name: input
downwardAPI:
items:
- path: "data.txt"
fieldRef:
fieldPath: metadata.annotations['batch.kubernetes.io/job-completion-index']
content/zh-cn/examples/application/job/indexed-job.yaml
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apiVersion: batch/v1
kind: Job
metadata:
name: 'indexed-job'
spec:
completions: 5
parallelism: 3
completionMode: Indexed
template:
spec:
restartPolicy: Never
initContainers:
- name: 'input'
image: 'docker.io/library/bash'
command:
- "bash"
- "-c"
- |
items=(foo bar baz qux xyz)
echo ${items[$JOB_COMPLETION_INDEX]} > /input/data.txt
volumeMounts:
- mountPath: /input
name: input
containers:
- name: 'worker'
image: 'docker.io/library/busybox'
command:
- "rev"
- "/input/data.txt"
volumeMounts:
- mountPath: /input
name: input
volumes:
- name: input
emptyDir: {}
content/zh-cn/examples/application/job/job-tmpl.yaml
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apiVersion: batch/v1
kind: Job
metadata:
name: process-item-$ITEM
labels:
jobgroup: jobexample
spec:
template:
metadata:
name: jobexample
labels:
jobgroup: jobexample
spec:
containers:
- name: c
image: busybox:1.28
command: ["sh", "-c", "echo Processing item $ITEM && sleep 5"]
restartPolicy: Never
content/zh-cn/examples/application/job/rabbitmq/Dockerfile
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# Specify BROKER_URL and QUEUE when running
FROM ubuntu:18.04
RUN apt-get update && \
apt-get install -y curl ca-certificates amqp-tools python \
--no-install-recommends \
&& rm -rf /var/lib/apt/lists/*
COPY ./worker.py /worker.py
CMD /usr/bin/amqp-consume --url=$BROKER_URL -q $QUEUE -c 1 /worker.py
content/zh-cn/examples/application/job/rabbitmq/job.yaml
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apiVersion: batch/v1
kind: Job
metadata:
name: job-wq-1
spec:
completions: 8
parallelism: 2
template:
metadata:
name: job-wq-1
spec:
containers:
- name: c
image: gcr.io/<project>/job-wq-1
env:
- name: BROKER_URL
value: amqp://guest:guest@rabbitmq-service:5672
- name: QUEUE
value: job1
restartPolicy: OnFailure
content/zh-cn/examples/application/job/rabbitmq/worker.py
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#!/usr/bin/env python
# Just prints standard out and sleeps for 10 seconds.
import sys
import time
print("Processing " + sys.stdin.readlines()[0])
time.sleep(10)
content/zh-cn/examples/application/job/redis/Dockerfile
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FROM python
RUN pip install redis
COPY ./worker.py /worker.py
COPY ./rediswq.py /rediswq.py
CMD python worker.py
content/zh-cn/examples/application/job/redis/job.yaml
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apiVersion: batch/v1
kind: Job
metadata:
name: job-wq-2
spec:
parallelism: 2
template:
metadata:
name: job-wq-2
spec:
containers:
- name: c
image: gcr.io/myproject/job-wq-2
restartPolicy: OnFailure
content/zh-cn/examples/application/job/redis/redis-pod.yaml
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apiVersion: v1
kind: Pod
metadata:
name: redis-master
labels:
app: redis
spec:
containers:
- name: master
image: redis
env:
- name: MASTER
value: "true"
ports:
- containerPort: 6379
content/zh-cn/examples/application/job/redis/redis-service.yaml
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apiVersion: v1
kind: Service
metadata:
name: redis
spec:
ports:
- port: 6379
targetPort: 6379
selector:
app: redis
content/zh-cn/examples/application/job/redis/rediswq.py
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#!/usr/bin/env python
# Based on http://peter-hoffmann.com/2012/python-simple-queue-redis-queue.html
# and the suggestion in the redis documentation for RPOPLPUSH, at
# http://redis.io/commands/rpoplpush, which suggests how to implement a work-queue.
import redis
import uuid
import hashlib
class RedisWQ(object):
"""Simple Finite Work Queue with Redis Backend
This work queue is finite: as long as no more work is added
after workers start, the workers can detect when the queue
is completely empty.
The items in the work queue are assumed to have unique values.
This object is not intended to be used by multiple threads
concurrently.
"""
def __init__(self, name, **redis_kwargs):
"""The default connection parameters are: host='localhost', port=6379, db=0
The work queue is identified by "name". The library may create other
keys with "name" as a prefix.
"""
self._db = redis.StrictRedis(**redis_kwargs)
# The session ID will uniquely identify this "worker".
self._session = str(uuid.uuid4())
# Work queue is implemented as two queues: main, and processing.
# Work is initially in main, and moved to processing when a client picks it up.
self._main_q_key = name
self._processing_q_key = name + ":processing"
self._lease_key_prefix = name + ":leased_by_session:"
def sessionID(self):
"""Return the ID for this session."""
return self._session
def _main_qsize(self):
"""Return the size of the main queue."""
return self._db.llen(self._main_q_key)
def _processing_qsize(self):
"""Return the size of the main queue."""
return self._db.llen(self._processing_q_key)
def empty(self):
"""Return True if the queue is empty, including work being done, False otherwise.
False does not necessarily mean that there is work available to work on right now,
"""
return self._main_qsize() == 0 and self._processing_qsize() == 0
# TODO: implement this
# def check_expired_leases(self):
# """Return to the work queueReturn True if the queue is empty, False otherwise."""
# # Processing list should not be _too_ long since it is approximately as long
# # as the number of active and recently active workers.
# processing = self._db.lrange(self._processing_q_key, 0, -1)
# for item in processing:
# # If the lease key is not present for an item (it expired or was
# # never created because the client crashed before creating it)
# # then move the item back to the main queue so others can work on it.
# if not self._lease_exists(item):
# TODO: transactionally move the key from processing queue to
# to main queue, while detecting if a new lease is created
# or if either queue is modified.
def _itemkey(self, item):
"""Returns a string that uniquely identifies an item (bytes)."""
return hashlib.sha224(item).hexdigest()
def _lease_exists(self, item):
"""True if a lease on 'item' exists."""
return self._db.exists(self._lease_key_prefix + self._itemkey(item))
def lease(self, lease_secs=60, block=True, timeout=None):
"""Begin working on an item the work queue.
Lease the item for lease_secs. After that time, other
workers may consider this client to have crashed or stalled
and pick up the item instead.
If optional args block is true and timeout is None (the default), block
if necessary until an item is available."""
if block:
item = self._db.brpoplpush(self._main_q_key, self._processing_q_key, timeout=timeout)
else:
item = self._db.rpoplpush(self._main_q_key, self._processing_q_key)
if item:
# Record that we (this session id) are working on a key. Expire that
# note after the lease timeout.
# Note: if we crash at this line of the program, then GC will see no lease
# for this item a later return it to the main queue.
itemkey = self._itemkey(item)
self._db.setex(self._lease_key_prefix + itemkey, lease_secs, self._session)
return item
def complete(self, value):
"""Complete working on the item with 'value'.
If the lease expired, the item may not have completed, and some
other worker may have picked it up. There is no indication
of what happened.
"""
self._db.lrem(self._processing_q_key, 0, value)
# If we crash here, then the GC code will try to move the value, but it will
# not be here, which is fine. So this does not need to be a transaction.
itemkey = self._itemkey(value)
self._db.delete(self._lease_key_prefix + itemkey)
# TODO: add functions to clean up all keys associated with "name" when
# processing is complete.
# TODO: add a function to add an item to the queue. Atomically
# check if the queue is empty and if so fail to add the item
# since other workers might think work is done and be in the process
# of exiting.
# TODO(etune): move to my own github for hosting, e.g. github.com/erictune/rediswq-py and
# make it so it can be pip installed by anyone (see
# http://stackoverflow.com/questions/8247605/configuring-so-that-pip-install-can-work-from-github)
# TODO(etune): finish code to GC expired leases, and call periodically
# e.g. each time lease times out.
content/zh-cn/examples/application/job/redis/worker.py
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#!/usr/bin/env python
import time
import rediswq
host="redis"
# Uncomment next two lines if you do not have Kube-DNS working.
# import os
# host = os.getenv("REDIS_SERVICE_HOST")
q = rediswq.RedisWQ(name="job2", host=host)
print("Worker with sessionID: " + q.sessionID())
print("Initial queue state: empty=" + str(q.empty()))
while not q.empty():
item = q.lease(lease_secs=10, block=True, timeout=2)
if item is not None:
itemstr = item.decode("utf-8")
print("Working on " + itemstr)
time.sleep(10) # Put your actual work here instead of sleep.
q.complete(item)
else:
print("Waiting for work")
print("Queue empty, exiting")
content/zh-cn/examples/application/mongodb/mongo-deployment.yaml
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apiVersion: apps/v1
kind: Deployment
metadata:
name: mongo
labels:
app.kubernetes.io/name: mongo
app.kubernetes.io/component: backend
spec:
selector:
matchLabels:
app.kubernetes.io/name: mongo
app.kubernetes.io/component: backend
replicas: 1
template:
metadata:
labels:
app.kubernetes.io/name: mongo
app.kubernetes.io/component: backend
spec:
containers:
- name: mongo
image: mongo:4.2
args:
- --bind_ip
- 0.0.0.0
resources:
requests:
cpu: 100m
memory: 100Mi
ports:
- containerPort: 27017
content/zh-cn/examples/application/mongodb/mongo-service.yaml
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apiVersion: v1
kind: Service
metadata:
name: mongo
labels:
app.kubernetes.io/name: mongo
app.kubernetes.io/component: backend
spec:
ports:
- port: 27017
targetPort: 27017
selector:
app.kubernetes.io/name: mongo
app.kubernetes.io/component: backend
content/zh-cn/examples/application/mysql/mysql-configmap.yaml
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apiVersion: v1
kind: ConfigMap
metadata:
name: mysql
labels:
app: mysql
data:
primary.cnf: |
# Apply this config only on the primary.
[mysqld]
log-bin
datadir=/var/lib/mysql/mysql
replica.cnf: |
# Apply this config only on replicas.
[mysqld]
super-read-only
datadir=/var/lib/mysql/mysql
content/zh-cn/examples/application/mysql/mysql-deployment.yaml
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apiVersion: v1
kind: Service
metadata:
name: mysql
spec:
ports:
- port: 3306
selector:
app: mysql
clusterIP: None
---
apiVersion: apps/v1
kind: Deployment
metadata:
name: mysql
spec:
selector:
matchLabels:
app: mysql
strategy:
type: Recreate
template:
metadata:
labels:
app: mysql
spec:
containers:
- image: mysql:5.6
name: mysql
env:
# Use secret in real usage
- name: MYSQL_ROOT_PASSWORD
value: password
ports:
- containerPort: 3306
name: mysql
volumeMounts:
- name: mysql-persistent-storage
mountPath: /var/lib/mysql
volumes:
- name: mysql-persistent-storage
persistentVolumeClaim:
claimName: mysql-pv-claim
content/zh-cn/examples/application/mysql/mysql-pv.yaml
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apiVersion: v1
kind: PersistentVolume
metadata:
name: mysql-pv-volume
labels:
type: local
spec:
storageClassName: manual
capacity:
storage: 20Gi
accessModes:
- ReadWriteOnce
hostPath:
path: "/mnt/data"
---
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
name: mysql-pv-claim
spec:
storageClassName: manual
accessModes:
- ReadWriteOnce
resources:
requests:
storage: 20Gi
content/zh-cn/examples/application/mysql/mysql-services.yaml
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# Headless service for stable DNS entries of StatefulSet members.
apiVersion: v1
kind: Service
metadata:
name: mysql
labels:
app: mysql
spec:
ports:
- name: mysql
port: 3306
clusterIP: None
selector:
app: mysql
---
# Client service for connecting to any MySQL instance for reads.
# For writes, you must instead connect to the primary: mysql-0.mysql.
apiVersion: v1
kind: Service
metadata:
name: mysql-read
labels:
app: mysql
spec:
ports:
- name: mysql
port: 3306
selector:
app: mysql
content/zh-cn/examples/application/mysql/mysql-statefulset.yaml
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apiVersion: apps/v1
kind: StatefulSet
metadata:
name: mysql
spec:
selector:
matchLabels:
app: mysql
serviceName: mysql
replicas: 3
template:
metadata:
labels:
app: mysql
spec:
initContainers:
- name: init-mysql
image: mysql:5.7
command:
- bash
- "-c"
- |
set -ex
# 基于 Pod 序号生成 MySQL 服务器的 ID。
[[ `hostname` =~ -([0-9]+)$ ]] || exit 1
ordinal=${BASH_REMATCH[1]}
echo [mysqld] > /mnt/conf.d/server-id.cnf
# 添加偏移量以避免使用 server-id=0 这一保留值。
echo server-id=$((100 + $ordinal)) >> /mnt/conf.d/server-id.cnf
# Copy appropriate conf.d files from config-map to emptyDir.
# 将合适的 conf.d 文件从 config-map 复制到 emptyDir。
if [[ $ordinal -eq 0 ]]; then
cp /mnt/config-map/primary.cnf /mnt/conf.d/
else
cp /mnt/config-map/replica.cnf /mnt/conf.d/
fi
volumeMounts:
- name: conf
mountPath: /mnt/conf.d
- name: config-map
mountPath: /mnt/config-map
- name: clone-mysql
image: gcr.io/google-samples/xtrabackup:1.0
command:
- bash
- "-c"
- |
set -ex
# 如果已有数据，则跳过克隆。
[[ -d /var/lib/mysql/mysql ]] && exit 0
# 跳过主实例（序号索引 0）的克隆。
[[ `hostname` =~ -([0-9]+)$ ]] || exit 1
ordinal=${BASH_REMATCH[1]}
[[ $ordinal -eq 0 ]] && exit 0
# 从原来的对等节点克隆数据。
ncat --recv-only mysql-$(($ordinal-1)).mysql 3307 | xbstream -x -C /var/lib/mysql
# 准备备份。
xtrabackup --prepare --target-dir=/var/lib/mysql
volumeMounts:
- name: data
mountPath: /var/lib/mysql
subPath: mysql
- name: conf
mountPath: /etc/mysql/conf.d
containers:
- name: mysql
image: mysql:5.7
env:
- name: MYSQL_ALLOW_EMPTY_PASSWORD
value: "1"
ports:
- name: mysql
containerPort: 3306
volumeMounts:
- name: data
mountPath: /var/lib/mysql
subPath: mysql
- name: conf
mountPath: /etc/mysql/conf.d
resources:
requests:
cpu: 500m
memory: 1Gi
livenessProbe:
exec:
command: ["mysqladmin", "ping"]
initialDelaySeconds: 30
periodSeconds: 10
timeoutSeconds: 5
readinessProbe:
exec:
# 检查我们是否可以通过 TCP 执行查询（skip-networking 是关闭的）。
command: ["mysql", "-h", "127.0.0.1", "-e", "SELECT 1"]
initialDelaySeconds: 5
periodSeconds: 2
timeoutSeconds: 1
- name: xtrabackup
image: gcr.io/google-samples/xtrabackup:1.0
ports:
- name: xtrabackup
containerPort: 3307
command:
- bash
- "-c"
- |
set -ex
cd /var/lib/mysql
# 确定克隆数据的 binlog 位置（如果有的话）。
if [[ -f xtrabackup_slave_info && "x$(<xtrabackup_slave_info)" != "x" ]]; then
# XtraBackup 已经生成了部分的 “CHANGE MASTER TO” 查询
# 因为我们从一个现有副本进行克隆。(需要删除末尾的分号!)
cat xtrabackup_slave_info | sed -E 's/;$//g' > change_master_to.sql.in
# 在这里要忽略 xtrabackup_binlog_info （它是没用的）。
rm -f xtrabackup_slave_info xtrabackup_binlog_info
elif [[ -f xtrabackup_binlog_info ]]; then
# 我们直接从主实例进行克隆。解析 binlog 位置。
[[ `cat xtrabackup_binlog_info` =~ ^(.*?)[[:space:]]+(.*?)$ ]] || exit 1
rm -f xtrabackup_binlog_info xtrabackup_slave_info
echo "CHANGE MASTER TO MASTER_LOG_FILE='${BASH_REMATCH[1]}',\
MASTER_LOG_POS=${BASH_REMATCH[2]}" > change_master_to.sql.in
fi
# 检查我们是否需要通过启动复制来完成克隆。
if [[ -f change_master_to.sql.in ]]; then
echo "Waiting for mysqld to be ready (accepting connections)"
until mysql -h 127.0.0.1 -e "SELECT 1"; do sleep 1; done
echo "Initializing replication from clone position"
mysql -h 127.0.0.1 \
-e "$(<change_master_to.sql.in), \
MASTER_HOST='mysql-0.mysql', \
MASTER_USER='root', \
MASTER_PASSWORD='', \
MASTER_CONNECT_RETRY=10; \
START SLAVE;" || exit 1
# 如果容器重新启动，最多尝试一次。
mv change_master_to.sql.in change_master_to.sql.orig
fi
# 当对等点请求时，启动服务器发送备份。
exec ncat --listen --keep-open --send-only --max-conns=1 3307 -c \
"xtrabackup --backup --slave-info --stream=xbstream --host=127.0.0.1 --user=root"
volumeMounts:
- name: data
mountPath: /var/lib/mysql
subPath: mysql
- name: conf
mountPath: /etc/mysql/conf.d
resources:
requests:
cpu: 100m
memory: 100Mi
volumes:
- name: conf
emptyDir: {}
- name: config-map
configMap:
name: mysql
volumeClaimTemplates:
- metadata:
name: data
spec:
accessModes: ["ReadWriteOnce"]
resources:
requests:
storage: 10Gi
content/zh-cn/examples/application/nginx-app.yaml
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apiVersion: v1
kind: Service
metadata:
name: my-nginx-svc
labels:
app: nginx
spec:
type: LoadBalancer
ports:
- port: 80
selector:
app: nginx
---
apiVersion: apps/v1
kind: Deployment
metadata:
name: my-nginx
labels:
app: nginx
spec:
replicas: 3
selector:
matchLabels:
app: nginx
template:
metadata:
labels:
app: nginx
spec:
containers:
- name: nginx
image: nginx:1.14.2
ports:
- containerPort: 80
content/zh-cn/examples/application/nginx-with-request.yaml
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apiVersion: apps/v1
kind: Deployment
metadata:
name: nginx-deployment
spec:
selector:
matchLabels:
app: nginx
replicas: 2
template:
metadata:
labels:
app: nginx
spec:
containers:
- name: nginx
image: nginx
resources:
limits:
memory: "128Mi"
cpu: "500m"
ports:
- containerPort: 80
content/zh-cn/examples/application/nginx/nginx-deployment.yaml
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apiVersion: apps/v1
kind: Deployment
metadata:
name: my-nginx
spec:
selector:
matchLabels:
app: nginx
replicas: 3
template:
metadata:
labels:
app: nginx
spec:
containers:
- name: nginx
image: nginx:1.14.2
ports:
- containerPort: 80
content/zh-cn/examples/application/nginx/nginx-svc.yaml
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apiVersion: v1
kind: Service
metadata:
name: my-nginx-svc
labels:
app: nginx
spec:
type: LoadBalancer
ports:
- port: 80
selector:
app: nginx
content/zh-cn/examples/application/php-apache.yaml
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apiVersion: apps/v1
kind: Deployment
metadata:
name: php-apache
spec:
selector:
matchLabels:
run: php-apache
replicas: 1
template:
metadata:
labels:
run: php-apache
spec:
containers:
- name: php-apache
image: k8s.gcr.io/hpa-example
ports:
- containerPort: 80
resources:
limits:
cpu: 500m
requests:
cpu: 200m
---
apiVersion: v1
kind: Service
metadata:
name: php-apache
labels:
run: php-apache
spec:
ports:
- port: 80
selector:
run: php-apache
content/zh-cn/examples/application/shell-demo.yaml
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apiVersion: v1
kind: Pod
metadata:
name: shell-demo
spec:
volumes:
- name: shared-data
emptyDir: {}
containers:
- name: nginx
image: nginx
volumeMounts:
- name: shared-data
mountPath: /usr/share/nginx/html
hostNetwork: true
dnsPolicy: Default
content/zh-cn/examples/application/simple_deployment.yaml
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apiVersion: apps/v1
kind: Deployment
metadata:
name: nginx-deployment
spec:
selector:
matchLabels:
app: nginx
minReadySeconds: 5
template:
metadata:
labels:
app: nginx
spec:
containers:
- name: nginx
image: nginx:1.14.2
ports:
- containerPort: 80
content/zh-cn/examples/application/ssa/nginx-deployment-no-replicas.yaml
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apiVersion: apps/v1
kind: Deployment
metadata:
name: nginx-deployment
labels:
app: nginx
spec:
selector:
matchLabels:
app: nginx
template:
metadata:
labels:
app: nginx
spec:
containers:
- name: nginx
image: nginx:1.14.2
content/zh-cn/examples/application/ssa/nginx-deployment-replicas-only.yaml
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apiVersion: apps/v1
kind: Deployment
metadata:
name: nginx-deployment
spec:
replicas: 3
content/zh-cn/examples/application/ssa/nginx-deployment.yaml
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apiVersion: apps/v1
kind: Deployment
metadata:
name: nginx-deployment
labels:
app: nginx
spec:
replicas: 3
selector:
matchLabels:
app: nginx
template:
metadata:
labels:
app: nginx
spec:
containers:
- name: nginx
image: nginx:1.14.2
content/zh-cn/examples/application/update_deployment.yaml
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apiVersion: apps/v1
kind: Deployment
metadata:
name: nginx-deployment
spec:
selector:
matchLabels:
app: nginx
template:
metadata:
labels:
app: nginx
spec:
containers:
- name: nginx
image: nginx:1.16.1 # update the image
ports:
- containerPort: 80
content/zh-cn/examples/application/web/web-parallel.yaml
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apiVersion: v1
kind: Service
metadata:
name: nginx
labels:
app: nginx
spec:
ports:
- port: 80
name: web
clusterIP: None
selector:
app: nginx
---
apiVersion: apps/v1
kind: StatefulSet
metadata:
name: web
spec:
serviceName: "nginx"
podManagementPolicy: "Parallel"
replicas: 2
selector:
matchLabels:
app: nginx
template:
metadata:
labels:
app: nginx
spec:
containers:
- name: nginx
image: k8s.gcr.io/nginx-slim:0.8
ports:
- containerPort: 80
name: web
volumeMounts:
- name: www
mountPath: /usr/share/nginx/html
volumeClaimTemplates:
- metadata:
name: www
spec:
accessModes: [ "ReadWriteOnce" ]
resources:
requests:
storage: 1Gi
content/zh-cn/examples/application/web/web.yaml
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apiVersion: v1
kind: Service
metadata:
name: nginx
labels:
app: nginx
spec:
ports:
- port: 80
name: web
clusterIP: None
selector:
app: nginx
---
apiVersion: apps/v1
kind: StatefulSet
metadata:
name: web
spec:
serviceName: "nginx"
replicas: 2
selector:
matchLabels:
app: nginx
template:
metadata:
labels:
app: nginx
spec:
containers:
- name: nginx
image: k8s.gcr.io/nginx-slim:0.8
ports:
- containerPort: 80
name: web
volumeMounts:
- name: www
mountPath: /usr/share/nginx/html
volumeClaimTemplates:
- metadata:
name: www
spec:
accessModes: [ "ReadWriteOnce" ]
resources:
requests:
storage: 1Gi
content/zh-cn/examples/application/wordpress/mysql-deployment.yaml
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apiVersion: v1
kind: Service
metadata:
name: wordpress-mysql
labels:
app: wordpress
spec:
ports:
- port: 3306
selector:
app: wordpress
tier: mysql
clusterIP: None
---
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
name: mysql-pv-claim
labels:
app: wordpress
spec:
accessModes:
- ReadWriteOnce
resources:
requests:
storage: 20Gi
---
apiVersion: apps/v1
kind: Deployment
metadata:
name: wordpress-mysql
labels:
app: wordpress
spec:
selector:
matchLabels:
app: wordpress
tier: mysql
strategy:
type: Recreate
template:
metadata:
labels:
app: wordpress
tier: mysql
spec:
containers:
- image: mysql:5.6
name: mysql
env:
- name: MYSQL_ROOT_PASSWORD
valueFrom:
secretKeyRef:
name: mysql-pass
key: password
ports:
- containerPort: 3306
name: mysql
volumeMounts:
- name: mysql-persistent-storage
mountPath: /var/lib/mysql
volumes:
- name: mysql-persistent-storage
persistentVolumeClaim:
claimName: mysql-pv-claim
content/zh-cn/examples/application/wordpress/wordpress-deployment.yaml
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apiVersion: v1
kind: Service
metadata:
name: wordpress
labels:
app: wordpress
spec:
ports:
- port: 80
selector:
app: wordpress
tier: frontend
type: LoadBalancer
---
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
name: wp-pv-claim
labels:
app: wordpress
spec:
accessModes:
- ReadWriteOnce
resources:
requests:
storage: 20Gi
---
apiVersion: apps/v1
kind: Deployment
metadata:
name: wordpress
labels:
app: wordpress
spec:
selector:
matchLabels:
app: wordpress
tier: frontend
strategy:
type: Recreate
template:
metadata:
labels:
app: wordpress
tier: frontend
spec:
containers:
- image: wordpress:4.8-apache
name: wordpress
env:
- name: WORDPRESS_DB_HOST
value: wordpress-mysql
- name: WORDPRESS_DB_PASSWORD
valueFrom:
secretKeyRef:
name: mysql-pass
key: password
ports:
- containerPort: 80
name: wordpress
volumeMounts:
- name: wordpress-persistent-storage
mountPath: /var/www/html
volumes:
- name: wordpress-persistent-storage
persistentVolumeClaim:
claimName: wp-pv-claim
content/zh-cn/examples/application/zookeeper/zookeeper.yaml
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apiVersion: v1
kind: Service
metadata:
name: zk-hs
labels:
app: zk
spec:
ports:
- port: 2888
name: server
- port: 3888
name: leader-election
clusterIP: None
selector:
app: zk
---
apiVersion: v1
kind: Service
metadata:
name: zk-cs
labels:
app: zk
spec:
ports:
- port: 2181
name: client
selector:
app: zk
---
apiVersion: policy/v1
kind: PodDisruptionBudget
metadata:
name: zk-pdb
spec:
selector:
matchLabels:
app: zk
maxUnavailable: 1
---
apiVersion: apps/v1
kind: StatefulSet
metadata:
name: zk
spec:
selector:
matchLabels:
app: zk
serviceName: zk-hs
replicas: 3
updateStrategy:
type: RollingUpdate
podManagementPolicy: OrderedReady
template:
metadata:
labels:
app: zk
spec:
affinity:
podAntiAffinity:
requiredDuringSchedulingIgnoredDuringExecution:
- labelSelector:
matchExpressions:
- key: "app"
operator: In
values:
- zk
topologyKey: "kubernetes.io/hostname"
containers:
- name: kubernetes-zookeeper
imagePullPolicy: Always
image: "k8s.gcr.io/kubernetes-zookeeper:1.0-3.4.10"
resources:
requests:
memory: "1Gi"
cpu: "0.5"
ports:
- containerPort: 2181
name: client
- containerPort: 2888
name: server
- containerPort: 3888
name: leader-election
command:
- sh
- -c
- "start-zookeeper \
--servers=3 \
--data_dir=/var/lib/zookeeper/data \
--data_log_dir=/var/lib/zookeeper/data/log \
--conf_dir=/opt/zookeeper/conf \
--client_port=2181 \
--election_port=3888 \
--server_port=2888 \
--tick_time=2000 \
--init_limit=10 \
--sync_limit=5 \
--heap=512M \
--max_client_cnxns=60 \
--snap_retain_count=3 \
--purge_interval=12 \
--max_session_timeout=40000 \
--min_session_timeout=4000 \
--log_level=INFO"
readinessProbe:
exec:
command:
- sh
- -c
- "zookeeper-ready 2181"
initialDelaySeconds: 10
timeoutSeconds: 5
livenessProbe:
exec:
command:
- sh
- -c
- "zookeeper-ready 2181"
initialDelaySeconds: 10
timeoutSeconds: 5
volumeMounts:
- name: datadir
mountPath: /var/lib/zookeeper
securityContext:
runAsUser: 1000
fsGroup: 1000
volumeClaimTemplates:
- metadata:
name: datadir
spec:
accessModes: [ "ReadWriteOnce" ]
resources:
requests:
storage: 10Gi