1、Dockerfile
ARG java_image_tag=17-jre
FROM eclipse-temurin:${java_image_tag}
COPY sources.list /etc/apt/sources.list
RUN set -ex && \
apt-get update && \
apt-get install -y \
bash \
tini \
libc6 \
libpam-modules vim tar git wget curl rsync bzip2 iptables tcpdump less telnet net-tools lsof rpm \
krb5-user gcc automake make telnet net-tools \
libnss3 net-tools \
procps \
lvm2 tcpdump netcat-openbsd && \
ln -s /lib /lib64 && \
rm -rf /var/cache/apt/* /var/lib/apt/lists/*
RUN ln -sf /usr/share/zoneinfo/Asia/Shanghai /etc/localtime && \
echo 'Asia/Shanghai' > /etc/timezone
WORKDIR /opt
RUN wget https://download.oracle.com/java/17/archive/jdk-17.0.12_linux-aarch64_bin.tar.gz
解压 JDK 到 /usr/java/ 目录
RUN mkdir -p /usr/java && \
tar -xzvf jdk-17.0.12_linux-aarch64_bin.tar.gz -C /usr/java
RUN chmod -R 777 /usr/java/jdk-17.0.12
RUN wget -O /opt/apache-zookeeper-3.8.4-bin.tar.gz https://dlcdn.apache.org/zookeeper/zookeeper-3.8.4/apache-zookeeper-3.8.4-bin.tar.gz && \
tar -zxvf /opt/apache-zookeeper-3.8.4-bin.tar.gz -C /opt && \
cp -r /opt/apache-zookeeper-3.8.4-bin /opt/zookeeper && \
chmod -R 777 /opt/zookeeper
ADD start-zookeeper /opt/zookeeper/bin
ADD zookeeper-metrics /opt/zookeeper/bin
ADD zookeeper-ready /opt/zookeeper/bin
RUN chmod -R 777 /opt/zookeeper/bin
可选：列出 zookeeper 目录以验证解压内容（可以根据需要删除）
RUN ls -l /opt/zookeeper
ENV ZOOKEEPER_HOME /opt/zookeeper
ENV JAVA_HOME /usr/java/jdk-17.0.12
ENV CLASSPATH .:JAVA_HOME/lib/dt.jar:JAVA_HOME/lib/tools.jar
ENV PATH PATH:JAVA_HOME/bin:$ZOOKEEPER_HOME/bin
MAINTAINER liebe
ENV LANG=C.UTF-8
EXPOSE 22 80 443 9090
2、镜像构建
docker buildx build --load --platform linux/arm64 --tag zookeeper:3.8.4 .
还有其他sources.list、start-zookeeper、zookeeper-metrics、zookeeper-ready
3、 sources.list
deb https://mirrors.aliyun.com/ubuntu-ports/ noble main restricted universe multiverse
deb-src https://mirrors.aliyun.com/ubuntu-ports/ noble main restricted universe multiverse
deb https://mirrors.aliyun.com/ubuntu-ports/ noble-security main restricted universe multiverse
deb-src https://mirrors.aliyun.com/ubuntu-ports/ noble-security main restricted universe multiverse
deb https://mirrors.aliyun.com/ubuntu-ports/ noble-updates main restricted universe multiverse
deb-src https://mirrors.aliyun.com/ubuntu-ports/ noble-updates main restricted universe multiverse
deb https://mirrors.aliyun.com/ubuntu-ports/ noble-proposed main restricted universe multiverse
deb-src https://mirrors.aliyun.com/ubuntu-ports/ noble-proposed main restricted universe multiverse
deb https://mirrors.aliyun.com/ubuntu-ports/ noble-backports main restricted universe multiverse
deb-src https://mirrors.aliyun.com/ubuntu-ports/ noble-backports main restricted universe multiverse
4、start-zookeeper
#!/usr/bin/env bash
Copyright 2017 The Kubernetes 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
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.
#Usage: start-zookeeper [OPTIONS]
Starts a ZooKeeper server based on the supplied options.
--servers The number of servers in the ensemble. The default
value is 1.
--data_dir The directory where the ZooKeeper process will store its
snapshots. The default is /opt/zookeeper/data.
--data_log_dir The directory where the ZooKeeper process will store its
write ahead log. The default is
/opt/zookeeper/data/log.
--conf_dir The directoyr where the ZooKeeper process will store its
configuration. The default is /opt/zookeeper/conf.
--client_port The port on which the ZooKeeper process will listen for
client requests. The default is 2181.
--election_port The port on which the ZooKeeper process will perform
leader election. The default is 3888.
--server_port The port on which the ZooKeeper process will listen for
requests from other servers in the ensemble. The
default is 2888.
--tick_time The length of a ZooKeeper tick in ms. The default is
2000.
--init_limit The number of Ticks that an ensemble member is allowed
to perform leader election. The default is 10.
--sync_limit The maximum session timeout that the ensemble will
allows a client to request. The default is 5.
--heap The maximum amount of heap to use. The format is the
same as that used for the Xmx and Xms parameters to the
JVM. e.g. --heap=2G. The default is 2G.
--max_client_cnxns The maximum number of client connections that the
ZooKeeper process will accept simultaneously. The
default is 60.
--snap_retain_count The maximum number of snapshots the ZooKeeper process
will retain if purge_interval is greater than 0. The
default is 3.
--purge_interval The number of hours the ZooKeeper process will wait
between purging its old snapshots. If set to 0 old
snapshots will never be purged. The default is 0.
--max_session_timeout The maximum time in milliseconds for a client session
timeout. The default value is 2 * tick time.
--min_session_timeout The minimum time in milliseconds for a client session
timeout. The default value is 20 * tick time.
--log_level The log level for the zookeeeper server. Either FATAL,
ERROR, WARN, INFO, DEBUG. The default is INFO.
USER=`whoami`
HOST=`hostname -s`
DOMAIN=`hostname -d`
LOG_LEVEL=INFO
DATA_DIR="/opt/zookeeper/data"
DATA_LOG_DIR="/opt/zookeeper/log"
LOG_DIR="/var/log/zookeeper"
CONF_DIR="/opt/zookeeper/conf"
CLIENT_PORT=2181
SERVER_PORT=2888
ELECTION_PORT=3888
TICK_TIME=2000
INIT_LIMIT=10
SYNC_LIMIT=5
HEAP=2G
MAX_CLIENT_CNXNS=60
SNAP_RETAIN_COUNT=3
PURGE_INTERVAL=0
SERVERS=1
COMMANDS_WHITE_LIST=*
function print_usage() {
echo "\
Usage: start-zookeeper [OPTIONS]
Starts a ZooKeeper server based on the supplied options.
--servers The number of servers in the ensemble. The default
value is 1.
--data_dir The directory where the ZooKeeper process will store its
snapshots. The default is /opt/zookeeper/data.
--data_log_dir The directory where the ZooKeeper process will store its
write ahead log. The default is
/opt/zookeeper/data/log.
--conf_dir The directoyr where the ZooKeeper process will store its
configuration. The default is /opt/zookeeper/conf.
--client_port The port on which the ZooKeeper process will listen for
client requests. The default is 2181.
--election_port The port on which the ZooKeeper process will perform
leader election. The default is 3888.
--server_port The port on which the ZooKeeper process will listen for
requests from other servers in the ensemble. The
default is 2888.
--tick_time The length of a ZooKeeper tick in ms. The default is
--init_limit The number of Ticks that an ensemble member is allowed
to perform leader election. The default is 10.
--sync_limit The maximum session timeout that the ensemble will
allows a client to request. The default is 5.
--heap The maximum amount of heap to use. The format is the
same as that used for the Xmx and Xms parameters to the
JVM. e.g. --heap=2G. The default is 2G.
--max_client_cnxns The maximum number of client connections that the
ZooKeeper process will accept simultaneously. The
default is 60.
--snap_retain_count The maximum number of snapshots the ZooKeeper process
will retain if purge_interval is greater than 0. The
default is 3.
--purge_interval The number of hours the ZooKeeper process will wait
between purging its old snapshots. If set to 0 old
snapshots will never be purged. The default is 0.
--max_session_timeout The maximum time in milliseconds for a client session
timeout. The default value is 2 * tick time.
--min_session_timeout The minimum time in milliseconds for a client session
timeout. The default value is 20 * tick time.
--log_level The log level for the zookeeeper server. Either FATAL,
ERROR, WARN, INFO, DEBUG. The default is INFO.
--4lw.commands.whitelist 这将允许所有四字命令执行。如果你只想启用特定的命令，比如 ruok，可以将配置项设为.ruok,srvr,stat
"
}
function create_data_dirs() {
if [ ! -d $DATA_DIR ]; then
mkdir -p $DATA_DIR
chown -R USER:USER $DATA_DIR
fi
if [ ! -d $DATA_LOG_DIR ]; then
mkdir -p $DATA_LOG_DIR
chown -R $USER:USER $DATA_LOG_DIR
fi
if [ ! -d $LOG_DIR ]; then
mkdir -p $LOG_DIR
chown -R USER:USER $LOG_DIR
fi
if [ ! -f $ID_FILE ] && [ $SERVERS -gt 1 ]; then
echo $MY_ID >> $ID_FILE
fi
}
function print_servers() {
for (( i=1; i<=$SERVERS; i++ ))
do
echo "server.i=NAME-((i-1)).DOMAIN:SERVER_PORT:ELECTION_PORT"
done
}
function create_config() {
rm -f $CONFIG_FILE
echo "#This file was autogenerated DO NOT EDIT" >> $CONFIG_FILE
echo "clientPort=$CLIENT_PORT" >> $CONFIG_FILE
echo "dataDir=$DATA_DIR" >> $CONFIG_FILE
echo "dataLogDir=$DATA_LOG_DIR" >> $CONFIG_FILE
echo "tickTime=$TICK_TIME" >> $CONFIG_FILE
echo "initLimit=$INIT_LIMIT" >> $CONFIG_FILE
echo "syncLimit=$SYNC_LIMIT" >> $CONFIG_FILE
echo "maxClientCnxns=$MAX_CLIENT_CNXNS" >> $CONFIG_FILE
echo "minSessionTimeout=$MIN_SESSION_TIMEOUT" >> $CONFIG_FILE
echo "maxSessionTimeout=$MAX_SESSION_TIMEOUT" >> $CONFIG_FILE
echo "autopurge.snapRetainCount=$SNAP_RETAIN_COUNT" >> $CONFIG_FILE
echo "autopurge.purgeInteval=$PURGE_INTERVAL" >> $CONFIG_FILE
echo "4lw.commands.whitelist=$COMMANDS_WHITE_LIST" >> $CONFIG_FILE
if [ $SERVERS -gt 1 ]; then
print_servers >> $CONFIG_FILE
fi
cat $CONFIG_FILE >&2
}
function create_jvm_props() {
rm -f $JAVA_ENV_FILE
echo "ZOO_LOG_DIR=$LOG_DIR" >> $JAVA_ENV_FILE
echo "JVMFLAGS=\"-XmxHEAP -XmsHEAP\"" >> $JAVA_ENV_FILE
}
function create_log_props() {
rm -f $LOGGER_PROPS_FILE
echo "Creating ZooKeeper log4j configuration"
echo "zookeeper.root.logger=CONSOLE" >> $LOGGER_PROPS_FILE
echo "zookeeper.console.threshold="$LOG_LEVEL >> $LOGGER_PROPS_FILE
echo "log4j.rootLogger=\${zookeeper.root.logger}" >> $LOGGER_PROPS_FILE
echo "log4j.appender.CONSOLE=org.apache.log4j.ConsoleAppender" >> $LOGGER_PROPS_FILE
echo "log4j.appender.CONSOLE.Threshold=\${zookeeper.console.threshold}" >> $LOGGER_PROPS_FILE
echo "log4j.appender.CONSOLE.layout=org.apache.log4j.PatternLayout" >> $LOGGER_PROPS_FILE
echo "log4j.appender.CONSOLE.layout.ConversionPattern=%d{ISO8601} [myid:%X{myid}] - %-5p [%t:%C{1}@%L] - %m%n" >> $LOGGER_PROPS_FILE
}
optspec=":hv-:"
while getopts "$optspec" optchar; do
case "${optchar}" in
-)
case "${OPTARG}" in
servers=*)
SERVERS=${OPTARG##*=}
;;
data_dir=*)
DATA_DIR=${OPTARG##*=}
;;
data_log_dir=*)
DATA_LOG_DIR=${OPTARG##*=}
;;
log_dir=*)
LOG_DIR=${OPTARG##*=}
;;
conf_dir=*)
CONF_DIR=${OPTARG##*=}
;;
client_port=*)
CLIENT_PORT=${OPTARG##*=}
;;
election_port=*)
ELECTION_PORT=${OPTARG##*=}
;;
server_port=*)
SERVER_PORT=${OPTARG##*=}
;;
tick_time=*)
TICK_TIME=${OPTARG##*=}
;;
init_limit=*)
INIT_LIMIT=${OPTARG##*=}
;;
sync_limit=*)
SYNC_LIMIT=${OPTARG##*=}
;;
heap=*)
HEAP=${OPTARG##*=}
;;
max_client_cnxns=*)
MAX_CLIENT_CNXNS=${OPTARG##*=}
;;
snap_retain_count=*)
SNAP_RETAIN_COUNT=${OPTARG##*=}
;;
purge_interval=*)
PURGE_INTERVAL=${OPTARG##*=}
;;
commands_white_list=*)
COMMANDS_WHITE_LIST=${OPTARG##*=}
;;
max_session_timeout=*)
MAX_SESSION_TIMEOUT=${OPTARG##*=}
;;
min_session_timeout=*)
MIN_SESSION_TIMEOUT=${OPTARG##*=}
;;
log_level=*)
LOG_LEVEL=${OPTARG##*=}
;;
*)
echo "Unknown option --${OPTARG}" >&2
exit 1
;;
esac;;
h)
print_usage
exit
;;
v)
echo "Parsing option: '-${optchar}'" >&2
;;
*)
if [ "OPTERR" != 1 \] \|\| \[ "{optspec:0:1}" = ":" ]; then
echo "Non-option argument: '-${OPTARG}'" >&2
fi
;;
esac
done
MIN_SESSION_TIMEOUT=${MIN_SESSION_TIMEOUT:- $((TICK_TIME*2))}
MAX_SESSION_TIMEOUT=${MAX_SESSION_TIMEOUT:- $((TICK_TIME*20))}
ID_FILE="$DATA_DIR/myid"
CONFIG_FILE="$CONF_DIR/zoo.cfg"
LOGGER_PROPS_FILE="$CONF_DIR/log4j.properties"
JAVA_ENV_FILE="$CONF_DIR/java.env"
if [[ HOST =\~ (.\*)-(\[0-9\]+) ]]; then
NAME=${BASH_REMATCH[1]}
ORD=${BASH_REMATCH[2]}
else
echo "Fialed to parse name and ordinal of Pod"
exit 1
fi
MY_ID=$((ORD+1))
create_config && create_jvm_props && create_log_props && create_data_dirs && exec zkServer.sh start-foreground
5、zookeeper-metrics
#!/usr/bin/env bash
Copyright 2017 The Kubernetes 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
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.
echo mntr | nc localhost $1 >& 1
6、zookeeper-ready
#!/usr/bin/env bash
Copyright 2017 The Kubernetes 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
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.
zkOk.sh uses the ruok ZooKeeper four letter work to determine if the instance
is health. The $? variable will be set to 0 if server responds that it is
healthy, or 1 if the server fails to respond.
OK=$(echo ruok | nc 127.0.0.1 $1)
if [ "$OK" == "imok" ]; then
exit 0
else
exit 1
fi
7、zookeeper.yaml
apiVersion: v1
kind: Service
metadata:
name: zk-hs
namespace: dev
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
namespace: dev
labels:
app: zk
spec:
ports:
- port: 2181
name: client
selector:
app: zk
apiVersion: policy/v1
kind: PodDisruptionBudget
metadata:
name: zk
namespace: dev
spec:
selector:
matchLabels:
app: zk
maxUnavailable: 1
apiVersion: apps/v1
kind: StatefulSet
metadata:
name: zk
namespace: dev
spec:
selector:
matchLabels:
app: zk
serviceName: zk-hs
replicas: 1
updateStrategy:
type: RollingUpdate
podManagementPolicy: Parallel
template:
metadata:
labels:
app: zk
spec:
imagePullSecrets:
- name: registry-key
containers:
- name: kubernetes-zookeeper
imagePullPolicy: IfNotPresent
image: zookeeper:3.8.4
resources:
requests:
memory: "20Mi"
cpu: "0.1"
ports:
- containerPort: 2181
name: client
- containerPort: 2888
name: server
- containerPort: 3888
name: leader-election
command:
sh
-c
"start-zookeeper \
--servers=1 \
--data_dir=/opt/zookeeper/data \
--data_log_dir=/opt/zookeeper/logs \
--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 \
--commands_white_list=ruok,srvr,mntr,stat \
--max_session_timeout=40000 \
--min_session_timeout=4000 \
--log_level=INFO"
readinessProbe:
exec:
command:
sh
-c
"zookeeper-ready 2181"
initialDelaySeconds: 10
timeoutSeconds: 60
livenessProbe:
exec:
command:
sh
-c
"zookeeper-ready 2181"
initialDelaySeconds: 10
timeoutSeconds: 60
volumeMounts:
- name: zkdatadir
mountPath: /opt/zookeeper/data
- name: zkdatalogs
mountPath: /opt/zookeeper/logs
securityContext:
runAsUser: 1000
fsGroup: 1000
volumeClaimTemplates:
- metadata:
name: zkdatadir
annotations:
volume.beta.kubernetes.io/storage-class: "nfs-client"
spec:
accessModes: [ "ReadWriteMany" ]
resources:
requests:
storage: 5Gi
- metadata:
name: zkdatalogs
annotations:
volume.beta.kubernetes.io/storage-class: "nfs-client"
spec:
accessModes: [ "ReadWriteMany" ]
resources:
requests:
storage: 5Gi