这篇文章主要介绍了DC/OS On-Premises下CLI怎么安装,具有一定借鉴价值,感兴趣的朋友可以参考下,希望大家阅读完这篇文章之后大有收获,下面让小编带着大家一起了解一下。
###环境
OS:CentOS 7.2 64bit
Kernel:4.3.3
IP:
DCOSBootstrap 172.30.250.175
DCOSmaster1 172.30.250.210
DCOSmaster2 172.30.250.211
DCOSmaster3 172.30.250.178
DCOSnode1 172.30.250.18
DCOSnode2 172.30.250.181
DCOSnode3 172.30.250.182
本地平台只支持centos和coreos,其他操作系统不支持,我用的是centos7.2,自己升的4.3.3的内核,默认3.10的内核也可以,需要支持overlay模块的内核。 七台机器分为三种类型:
Bootstrap:用于DC/OS安装
master:运行DC/OS
node:运行服务
安装有三种模式,GUI,CLI,高级模式,这里采用在虚拟机上使用CLI方式安装。
#开始安装
##第一步,配置引导节点ssh到所有节点免密码
1.所有节点生成ssh密钥
$ssh-genkey
2.引导节点上执行以下命令,实现可免密码ssh到远程节点
$ssh-copy-id -i ~/.ssh/id_rsa.pub $remote-host
$ssh $remote-host
##第二步,引导节点安装docker
1.升级内核,关防火墙,安装依赖包,添加用户组
$sudo yum update
$sudo systemctl stop firewalld && sudo systemctl disable firewalld
$sudo yum install -y tar xz unzip curl ipset
$sudo sed -i s/SELINUX=enforcing/SELINUX=permissive/g /etc/selinux/config
$sudo groupadd nogroup
2.生成三个文件,分别是开启overlay,配置SYSTEMD,添加Docker仓库
$ sudo tee /etc/modules-load.d/overlay.conf <<-'EOF'
overlay
EOF
$ sudo mkdir -p /etc/systemd/system/docker.service.d && sudo tee /etc/systemd/system/docker.service.d/override.conf <<- EOF
[Service]
ExecStart=
ExecStart=/usr/bin/docker daemon --storage-driver=overlay -H fd://
EOF
$ sudo tee /etc/yum.repos.d/docker.repo <<-'EOF'
[dockerrepo]
name=Docker Repository
baseurl=https://yum.dockerproject.org/repo/main/centos/$releasever/
enabled=1
gpgcheck=1
gpgkey=https://yum.dockerproject.org/gpg
EOF
3.重启,查看overlay模块是否已载,显示overlay表示已加载
$ reboot
$ lsmod | grep overlay
overlay
4.安装docker,启动docker,要确保所有节点上docker都是启动的
$ sudo yum install --assumeyes --tolerant docker-engine
$ sudo systemctl start docker
$ sudo systemctl enable docker
##第三步,配置引导节点
首先要确保docker是运行的
1.登陆到引导节点~目录下,下载安装文件,创建安装目录,复制密钥到安装目录
$ curl -O https://downloads.dcos.io/dcos/EarlyAccess/dcos_generate_config.sh
$ mkdir -p genconf
$ cp ~/.ssh/id_rsa genconf/ssh_key && chmod 0600 genconf/ssh_key
安装文件dcos_generate_config.sh
有500多M
2.在genconf目录下创建两个文件 ##genconf/config.yaml 这个文件里写明要安装的所有节点的信息,登陆的用户名密码等:
bootstrap_url: http://183.131.54.102:9001
cluster_name: dcoscluster-name
exhibitor_storage_backend: static
ip_detect_filename: /genconf/ip-detect
master_list:
- 172.30.250.211
- 172.30.250.210
- 172.30.250.178
resolvers:
- 192.168.250.190
- 114.255.243.230
agent_list:
- 172.30.250.181
- 172.30.250.182
- 172.30.250.18
ssh_port: 22
ssh_user: root
superuser_password:
superuser_username: chenaizhen@qiniu.com
官网的安装指导里resolvers写的是google的DNSservers地址8.8.8.8和8.8.4.4,我这里写的是自己公司的地址。
##genconf/ip-detect 官网的手册上提供了四种ip-detect的方式,下面这种要求主机只能有一个ip,这个文件表示通过节点指定的ip来发现,这个文件执行的结果就是本机的IP。
#!/usr/bin/env bash
set -o nounset -o errexit
export PATH=/usr/sbin:/usr/bin:$PATH
echo $(ip addr show eth0 | grep -Eo '[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}' | head -1)
3.定制DC/OS 下面这个命令会根据前面写在genconf里两个文件定制创建DC/OS
$ sudo bash dcos_generate_config.sh --genconf
结束后的文件目录:
4.为DC/OS的所有节点安装Docker,配置SELinux等。可以通过以下命令自动的准备所有节点:
$ sudo bash dcos_generate_config.sh --install-prereqs
Running mesosphere/dcos-genconf docker with BUILD_DIR set to /root/genconf
====> EXECUTING INSTALL PREREQUISITES
====> START install_prereqs
====> STAGE install_prereqs
====> STAGE install_prereqs
====> STAGE install_prereqs
====> STAGE install_prereqs
====> STAGE install_prereqs
====> STAGE install_prereqs
====> OUTPUT FOR install_prereqs
====> END install_prereqs with returncode: 0
====> SUMMARY FOR install_prereqs
6 out of 6 hosts successfully completed install_prereqs stage.
====> END OF SUMMARY FOR install_prereqs
以上命令可加-v参数显示安装过程,可以看到有如下信息:
#/bin/sh
# setenforce is in this path
PATH=$PATH:/sbin
dist=$(cat /etc/*-release | sed -n 's@^ID="\(.*\)"$@\1@p')
if ([ x$dist != 'xrhel' ] && [ x$dist != 'xcentos' ]); then
echo "$dist is not supported. Only RHEL and CentOS are supported" >&2
exit 0
fi
version=$(cat /etc/*-release | sed -n 's@^VERSION_ID="\(.*\)"$@\1@p')
if [ $version -lt 7 ]; then
echo "$version is not supported. Only >= 7 version is supported" >&2
exit 0
fi
sudo setenforce 0 && sudo sed -i 's/^SELINUX=.*/SELINUX=disabled/g' /etc/sysconfig/selinux
sudo tee /etc/yum.repos.d/docker.repo <<-'EOF'
[dockerrepo]
name=Docker Repository
baseurl=https://yum.dockerproject.org/repo/main/centos/$releasever/
enabled=1
gpgcheck=1
gpgkey=https://yum.dockerproject.org/gpg
EOF
sudo yum -y update
sudo mkdir -p /etc/systemd/system/docker.service.d
sudo tee /etc/systemd/system/docker.service.d/override.conf <<- EOF
[Service]
ExecStart=
ExecStart=/usr/bin/docker daemon --storage-driver=overlay -H fd://
EOF
sudo yum install -y docker-engine
sudo systemctl start docker
sudo systemctl enable docker
sudo yum install -y wget
sudo yum install -y git
sudo yum install -y unzip
sudo yum install -y curl
sudo yum install -y xz
sudo yum install -y ipset
sudo getent group nogroup || sudo groupadd nogroup
5.安装前验证所有节点是可以安装的
$ sudo bash dcos_generate_config.sh --preflight
====> EXECUTING PREFLIGHT
====> START run_preflight
====> STAGE preflight
====> STAGE preflight
====> STAGE preflight
====> STAGE preflight
====> STAGE preflight
====> STAGE preflight_cleanup
====> STAGE preflight_cleanup
====> STAGE preflight_cleanup
====> STAGE preflight_cleanup
====> STAGE preflight_cleanup
====> STAGE preflight
====> STAGE preflight_cleanup
====> OUTPUT FOR run_preflight
====> END run_preflight with returncode: 0
====> SUMMARY FOR run_preflight
6 out of 6 hosts successfully completed run_preflight stage.
====> END OF SUMMARY FOR run_preflight
6.安装DC/OS到所有节点
¥sudo bash dcos_generate_config.sh --deploy
Running mesosphere/dcos-genconf docker with BUILD_DIR set to /root/genconf
====> EXECUTING DC/OS INSTALLATION
====> START install_dcos
====> STAGE deploy
====> STAGE deploy_cleanup
====> STAGE deploy
====> STAGE deploy
====> STAGE deploy_cleanup
====> STAGE deploy_cleanup
====> STAGE deploy
====> STAGE deploy_cleanup
====> STAGE deploy
====> STAGE deploy_cleanup
====> STAGE deploy
====> STAGE deploy_cleanup
====> OUTPUT FOR install_dcos
====> END install_dcos with returncode: 0
====> SUMMARY FOR install_dcos
6 out of 6 hosts successfully completed install_dcos stage.
====> END OF SUMMARY FOR install_dcos
7.确认服务是否启动正常
Running mesosphere/dcos-genconf docker with BUILD_DIR set to /home/centos/genconf
====> dcos_installer.action_lib.prettyprint:: ====> EXECUTING POSTFLIGHT
====> dcos_installer.action_lib.prettyprint:: ====> START run_postflight
====> dcos_installer.action_lib.prettyprint:: ====> STAGE postflight
====> dcos_installer.action_lib.prettyprint:: ====> STAGE postflight
====> dcos_installer.action_lib.prettyprint:: ====> STAGE postflight_cleanup
====> dcos_installer.action_lib.prettyprint:: ====> STAGE postflight_cleanup
====> dcos_installer.action_lib.prettyprint:: ====> END run_postflight with returncode: 0
====> dcos_installer.action_lib.prettyprint:: ====> SUMMARY
====> dcos_installer.action_lib.prettyprint:: 6 out of 6 hosts successfully completed run_postflight stage.
##最后,登陆 ###zookeeper的监控管理页面 任意选一个master节点的ip都可以登,地址:http://183.131.54.89:8181/exhibitor/v1/ui/index.html
###DC/OS的登陆页面 任意选一个master节点的ip,如http://183.131.54.89,用户名密码为config.yaml里配置的,登陆后的页面
Tip:183.131.54.89是节点172.30.250.177的外网ip ##端口说明:
port 80 mesos-ui
port 53 mesos-dns
port 15055 dcos-history
port 5050 mesos-master
port 2181 zookeeper
port 8080 marathon
port 3888 zookeeper
port 8181 exhibitor
port 8123 mesos-dns
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