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playbook自动安装kafka集群-创新互联

一、环境说明
1、服务器信息

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172.21.184.43 kafka、zk
172.21.184.44 kafka、zk
172.21.184.45 kafka、zk
172.21.244.7   ansible

2、软件版本信息

系统：CentOS Linux release 7.5.1804 (Core)
kafka：kafka_2.11-2.2.0
Zookeeper version: 3.4.8
ansible：ansible 2.7.10

二、配置准备
1、编写playbook相关配置文件，先tree看下整目录结构

tree
.
├── kafka
│   ├── group_vars
│   │   └── kafka
│   ├── hosts
│   ├── kafkainstall.yml
│   └── templates
│       ├── server.properties-1.j2
│       ├── server.properties-2.j2
│       ├── server.properties-3.j2
│       └── server.properties.j2
└── zookeeper
    ├── group_vars
    │   └── zook
    ├── hosts
    ├── templates
    │   └── zoo.cfg.j2
    └── zooKeeperinstall.yml

2、建立相关目录


mkdir /chj/ansibleplaybook/kafka/group_vars -p
mkdir /chj/ansibleplaybook/kafka/templates
mkdir /chj/ansibleplaybook/zookeeper/group_vars -p
mkdir /chj/ansibleplaybook/zookeeper/templates

3、撰写部署zookeeper的配置文件
A、zookeeper的group_vars文件

vim /chj/ansibleplaybook/zookeeper/group_vars/zook    

---
zk01server: 172.21.184.43
zk02server: 172.21.184.44
zk03server: 172.21.184.45
zookeeper_group: work
zookeeper_user:  work
zookeeper_dir: /chj/data/zookeeper
zookeeper_appdir: /chj/app/zookeeper
zk01myid: 43
zk02myid: 44
zk03myid: 45

B、zookeeper的templates文件

vim /chj/ansibleplaybook/zookeeper/templates/zoo.cfg.j2

tickTime=2000
initLimit=500
syncLimit=20
dataDir={{ zookeeper_dir }}
dataLogDir=/chj/data/log/zookeeper/
clientPort=10311
maxClientCnxns=1000000

server.{{ zk01myid }}={{ zk01server }}:10301:10331
server.{{ zk02myid }}={{ zk02server }}:10302:10332
server.{{ zk03myid }}={{ zk03server }}:10303:10333

C、zookeeper的host文件

vim /chj/ansibleplaybook/zookeeper/hosts

[zook]
172.21.184.43
172.21.184.44
172.21.184.45

D、zookeeper的安装的yml文件

vim /chj/ansibleplaybook/zookeeper/zooKeeperinstall.yml

---
- hosts: "zook"
  gather_facts: no
  tasks:
    - name: Create zookeeper group
      group:
        name: '{{ zookeeper_group }}'
        state: present
      tags:
        - zookeeper_user

    - name: Create zookeeper user
      user:
        name: '{{ zookeeper_user }}'
        group: '{{ zookeeper_group }}'
        state: present
        createhome: no
      tags:
        - zookeeper_group

    - name: 检测是否安过zk
      stat:
        path: /chj/app/zookeeper
      register: node_files
    - debug:
        msg: "{{ node_files.stat.exists }}"
    - name: 检查是否存在java环境
      shell: if [ ! -f "/usr/local/jdk/bin/java" ];then echo "创建目录"; curl -o /usr/local/jdk1.8.0_121.tar.gz  http://download.pkg.chj.cloud/chj_jdk1.8.0_121.tar.gz; tar xf /usr/local/jdk1.8.0_121.tar.gz -C /usr/local/jdk1.8.0_121; cd /usr/local/; mv  /usr/local/jdk1.8.0_121 jdk; ln -s /usr/local/jdk/bin/java /sbin/java;  else echo "目录已存在\n" ;fi

    - name: 下载解压 chj_zookeeper
      unarchive: src=http://ops.chehejia.com:9090/pkg/zookeeper.tar.gz dest=/chj/app/ copy=no
      when: node_files.stat.exists == False
      register: unarchive_msg
    - debug:
        msg: "{{ unarchive_msg }}"
    - name: 创建zookeeper 数据目录和日志目录
      shell: if [ ! -d "/chj/data/zookeeper" ] && [ ! -d "/chj/data/log/zookeeper" ];then echo "创建目录"; mkdir -p /chj/data/{zookeeper,zookeeperLog}  ; else echo "目录已存在\n" ;fi

    - name: 修改目录权限
      shell: chown work:work -R /chj/{data,app}
      when: node_files.stat.exists == False
    - name: 配置zk myid
      shell: "hostname -i| cut -d '.' -f 4|awk '{print $1}' > /chj/data/zookeeper/myid"
    - name: Config zookeeper service
      template:
        src:  zoo.cfg.j2
        dest: /chj/app/zookeeper/conf/zoo.cfg
        mode: 0755

    - name: Reload systemd
      command: systemctl daemon-reload
    - name: Restart ZooKeeper service
      shell: sudo su - work -c "/chj/app/zookeeper/console start"

    - name: Status ZooKeeper service
      shell: "sudo su - work -c '/chj/app/zookeeper/console status'"
      register: zookeeper_status_result
      ignore_errors: True
    - debug:
        msg: "{{ zookeeper_status_result }}"

4、编写部署kafka的配置文件
A、kafka的group_vars文件

vim /chj/ansibleplaybook/kafka/group_vars/kafka

---

kafka01: 172.21.184.43
kafka02: 172.21.184.44
kafka03: 172.21.184.45
kafka_group: work
kafka_user:  work
log_dir: /chj/data/kafka
brokerid1: 1
brokerid2: 2
brokerid3: 3
zk_addr: 172.21.184.43:10311,172.21.184.44:10311,172.21.184.45:10311/kafka

B、kafka的templates文件

vim /chj/ansibleplaybook/kafka/templates/server.properties-1.j2

broker.id={{ brokerid1 }}   ##server.properties-2.j2和server.properties-3.j2分别配置为brokerid2和brokerid3
auto.create.topics.enable=false
auto.leader.rebalance.enable=true
broker.rack=/default-rack
compression.type=snappy
controlled.shutdown.enable=true
controlled.shutdown.max.retries=3
controlled.shutdown.retry.backoff.ms=5000
controller.message.queue.size=10
controller.socket.timeout.ms=30000
default.replication.factor=1
delete.topic.enable=true
fetch.message.max.bytes=10485760
fetch.purgatory.purge.interval.requests=10000
leader.imbalance.check.interval.seconds=300
leader.imbalance.per.broker.percentage=10
host.name= {{ kafka01 }}
listeners=PLAINTEXT://{{ kafka01}}:9092  ##server.properties-2.j2和server.properties-3.j2分别配置为brokerid2和brokerid3
log.cleanup.interval.mins=1200
log.dirs= {{ log_dir}}
log.index.interval.bytes=4096
log.index.size.max.bytes=10485760
log.retention.bytes=-1
log.retention.hours=168
log.roll.hours=168
log.segment.bytes=1073741824
message.max.bytes=10000000
min.insync.replicas=1
num.io.threads=8
num.network.threads=3
num.partitions=1
num.recovery.threads.per.data.dir=1
num.replica.fetchers=1
offset.metadata.max.bytes=4096
offsets.commit.required.acks=-1
offsets.commit.timeout.ms=5000
offsets.load.buffer.size=5242880
offsets.retention.check.interval.ms=600000
offsets.retention.minutes=86400000
offsets.topic.compression.codec=0
offsets.topic.num.partitions=50
offsets.topic.replication.factor=3
transaction.state.log.replication.factor=3
transaction.state.log.min.isr=1
offsets.topic.segment.bytes=104857600
port=9092
producer.purgatory.purge.interval.requests=10000
queued.max.requests=500
replica.fetch.max.bytes=10485760
replica.fetch.min.bytes=1
replica.fetch.wait.max.ms=500
replica.high.watermark.checkpoint.interval.ms=5000
replica.lag.max.messages=4000
replica.lag.time.max.ms=10000
replica.socket.receive.buffer.bytes=65536
replica.socket.timeout.ms=30000
sasl.enabled.mechanisms=GSSAPI
sasl.mechanism.inter.broker.protocol=GSSAPI
socket.receive.buffer.bytes=102400
socket.request.max.bytes=104857600
socket.send.buffer.bytes=102400
zookeeper.connect= {{ zk_addr }}
zookeeper.connection.timeout.ms=25000
zookeeper.session.timeout.ms=30000
zookeeper.sync.time.ms=2000
group.initial.rebalance.delay.ms=10000

C、kafka的host文件

vim /chj/ansibleplaybook/kafka/hosts

[kafka]
172.21.184.43
172.21.184.44
172.21.184.45

D、kafka的安装的yml文件

vim /chj/ansibleplaybook/kafka/kafkainstall.yml

---
- hosts: "kafka"
  gather_facts: yes

  tasks:
    - name: obtain eth0 ipv4 address
      debug: msg={{ ansible_default_ipv4.address }}
      when: ansible_default_ipv4.alias == "eth0"

    - name: Create kafka group
      group:
        name: '{{ kafka_group }}'
        state: present
      tags:
        - kafka_user

    - name: Create kafka user
      user:
        name: '{{ kafka_user }}'
        group: '{{ kafka_group }}'
        state: present
        createhome: no
      tags:
        - kafka_group

    - name: 检测是否安过zk
      stat:
        path: /chj/app/kafka
      register: node_files
    - debug:
        msg: "{{ node_files.stat.exists }}"
    - name: 检查是否存在java环境
      shell: if [ ! -f "/usr/local/jdk/bin/java" ];then echo "创建目录"; curl -o /usr/local/jdk1.8.0_121.tar.gz  http://download.pkg.chj.cloud/chj_jdk1.8.0_121.tar.gz; tar xf /usr/local/jdk1.8.0_121.tar.gz -C /usr/local/jdk1.8.0_121; cd /usr/local/; mv  /usr/local/jdk1.8.0_121 jdk; ln -s /usr/local/jdk/bin/java /sbin/java;  else echo "目录已存在\n" ;fi

    - name: 下载解压 kafka
      unarchive: src=http://ops.chehejia.com:9090/pkg/kafka.tar.gz dest=/chj/app/ copy=no
      when: node_files.stat.exists == False
      register: unarchive_msg
    - debug:
        msg: "{{ unarchive_msg }}"
    - name: 创建kafka 数据目录和日志目录
      shell: if [ ! -d "/chj/data/kafka" ] && [ ! -d "/chj/data/log/kafka" ];then echo "创建目录"; mkdir -p /chj/data/{kafka,log/kafka}  ; else echo "目录已存在\n" ;fi

    - name: 修改目录权限
      shell: chown work:work -R /chj/{data,app}
      when: node_files.stat.exists == False
    - name: Config kafka01 service
      template:
        src: server.properties-1.j2
        dest: /chj/app/kafka/config/server.properties
        mode: 0755
      when: ansible_default_ipv4.address == "172.21.184.43"

    - name: Config kafka02 service
      template:
        src:  server.properties-2.j2
        dest: /chj/app/kafka/config/server.properties
        mode: 0755
      when: ansible_default_ipv4.address == "172.21.184.44"

    - name: Config kafka03 service
      template:
        src:  server.properties-3.j2
        dest: /chj/app/kafka/config/server.properties
        mode: 0755

      when: ansible_default_ipv4.address == "172.21.184.45"
    - name: Reload systemd
      command: systemctl daemon-reload
    - name: Restart kafka service
      shell: sudo su - work -c "/chj/app/kafka/console start"

    - name: Status kafka service
      shell: "sudo su - work -c '/chj/app/kafka/console status'"
      register: kafka_status_result
      ignore_errors: True
    - debug:
        msg: "{{ kafka_status_result }}"

PS：安装需要用到的jdk、kafka、zk的二进制包，自行替换成能访问到的下载地址

三、部署
1、先部署zookeeper集群

cd /chj/ansibleplaybook/zookeeper/
ansible-playbook -i hosts zooKeeperinstall.yml -b

2、在部署kafka集群

cd /chj/ansibleplaybook/kafka/
ansible-playbook -i hosts kafkainstall.yml -b

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