​CentOS7一键脚本安装docker并创建ES集群(docker版本)

CentOS7一键脚本安装docker并创建ES集群(docker版本)

说明：

• 1、脚本中修改了默认的docker的存储路径为/data/docker
• 2、脚本中修改了docker默认的网段为10.112.0.1/24
• 3、脚本中拉取镜像并安装portainer 容器Web管理工具

#!/bin/bash
sed -i 's/enforcing/disabled/g' /etc/selinux/config
setenforce 0
curl -o /etc/yum.repos.d/epel.repo http://mirrors.aliyun.com/repo/epel-7.repo
curl -o /etc/yum.repos.d/CentOS-Base.repo https://mirrors.aliyun.com/repo/Centos-7.repo
sed -i -e '/mirrors.cloud.aliyuncs.com/d' -e '/mirrors.aliyuncs.com/d' /etc/yum.repos.d/CentOS-Base.repo
# step 1: 安装必要的一些系统工具
yum install -y yum-utils device-mapper-persistent-data lvm2
# Step 2: 添加软件源信息
yum-config-manager --add-repo https://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo
# Step 3
sed -i 's+download.docker.com+mirrors.aliyun.com/docker-ce+' /etc/yum.repos.d/docker-ce.repo
# Step 4: 更新并安装Docker-CE
yum makecache fast
yum -y install docker-ce
# Step 4: 开启Docker服务

mkdir -p /data/docker
sed -i "s#ExecStart=/usr/bin/dockerd -H fd://#ExecStart=/usr/bin/dockerd -g /data/docker -H fd://#g" /lib/systemd/system/docker.service
cat /lib/systemd/system/docker.service | grep ExecStart
systemctl daemon-reload
mkdir -p /etc/docker/
touch /etc/docker/daemon.json
cat  > /etc/docker/daemon.json << \EOF
{
  "bip": "10.112.0.1/24"
}
EOF
systemctl start docker
systemctl enable docker
docker version

docker pull docker.elastic.co/elasticsearch/elasticsearch:7.17.7
cat  > /opt/docker-compose.yml<< \EOF
version: '2.2'
services:
  es01:
    image: docker.elastic.co/elasticsearch/elasticsearch:7.17.7
    container_name: es01
    environment:
      - node.name=es01
      - cluster.name=es-docker-cluster
      - discovery.seed_hosts=es02,es03
      - cluster.initial_master_nodes=es01,es02,es03
      - bootstrap.memory_lock=true
      - "ES_JAVA_OPTS=-Xms512m -Xmx512m"
    ulimits:
      memlock:
        soft: -1
        hard: -1
    volumes:
      - data01:/usr/share/elasticsearch/data
    ports:
      - 9200:9200
    networks:
      - elastic
  es02:
    image: docker.elastic.co/elasticsearch/elasticsearch:7.17.7
    container_name: es02
    environment:
      - node.name=es02
      - cluster.name=es-docker-cluster
      - discovery.seed_hosts=es01,es03
      - cluster.initial_master_nodes=es01,es02,es03
      - bootstrap.memory_lock=true
      - "ES_JAVA_OPTS=-Xms512m -Xmx512m"
    ulimits:
      memlock:
        soft: -1
        hard: -1
    volumes:
      - data02:/usr/share/elasticsearch/data
    networks:
      - elastic
  es03:
    image: docker.elastic.co/elasticsearch/elasticsearch:7.17.7
    container_name: es03
    environment:
      - node.name=es03
      - cluster.name=es-docker-cluster
      - discovery.seed_hosts=es01,es02
      - cluster.initial_master_nodes=es01,es02,es03
      - bootstrap.memory_lock=true
      - "ES_JAVA_OPTS=-Xms512m -Xmx512m"
    ulimits:
      memlock:
        soft: -1
        hard: -1
    volumes:
      - data03:/usr/share/elasticsearch/data
    networks:
      - elastic

volumes:
  data01:
    driver: local
  data02:
    driver: local
  data03:
    driver: local

networks:
  elastic:
    driver: bridge
EOF
yum -y install docker-compose 
cd /opt
echo "vm.max_map_count=262144" >> /etc/sysctl.conf
sysctl -w vm.max_map_count=262144
docker-compose up -d
curl -X GET "localhost:9200/_cat/nodes?v=true&pretty"

docker volume create portainer_data
docker run -d -p 8000:8000 -p 9443:9443 --name portainer --restart=always -v /var/run/docker.sock:/var/run/docker.sock -v portainer_data:/data portainer/portainer-ce:latest
firewall-cmd --permanent --zone=public --add-port=9443/tcp
firewall-cmd --reload

集群创建成功截图如下

portainer界面