SaltStack+Docker构建高可用与自动发现服务

SaltStack+Docker构建高可用与自动发现服务

环境说明

主机名称	IP	服务	备注
linux-node3.example.com	192.168.200.107	salt-master redis	无
linux-node4.example.com	192.168.200.106	sakt-minion haproxy	无
linux-node5.example.com	192.168.200.115	sakt-minion docker	无
linux-node7.example.com	192.168.200.117	sakt-minion docker	无

#

[root@linux-node3 ~]# yum install -y redis
[root@linux-node3 ~]# vim /etc/redis.conf
bind 192.168.200.107
[root@linux-node3 ~]# systemctl enable redis
[root@linux-node3 ~]# systemctl start redis
[root@linux-node3 ~]# yum install -y salt-master
[root@linux-node3 ~]# systemctl start salt-master
[root@linux-node3 ~]# systemctl enable salt-master

[root@linux-node5 ~]# grep -vE "^$|^#" /etc/salt/minion
master: 192.168.200.107
id: 192.168.200.115
[root@linux-node5 ~]# systemctl enable salt-minion
[root@linux-node5 ~]# systemctl start salt-minion


[root@linux-node3 ~]# salt-key -L
Accepted Keys:
Denied Keys:
Unaccepted Keys:
192.168.200.106
192.168.200.115
192.168.200.117
Rejected Keys:
[root@linux-node3 ~]# salt-key -A -y
The following keys are going to be accepted:
Unaccepted Keys:
192.168.200.106
192.168.200.115
192.168.200.117
Key for minion 192.168.200.106 accepted.
Key for minion 192.168.200.115 accepted.
Key for minion 192.168.200.117 accepted.
[root@linux-node3 ~]# salt-key -L
Accepted Keys:
192.168.200.106
192.168.200.115
192.168.200.117
Denied Keys:
Unaccepted Keys:
Rejected Keys:

[root@linux-node3 haproxy]# salt -L '192.168.200.115,192.168.200.117' cp.get_file salt://haproxy/docker_nginx_manage.py /usr/local/bin/docker_nginx_manage.py
192.168.200.117:
    /usr/local/bin/docker_nginx_manage.py
192.168.200.115:
    /usr/local/bin/docker_nginx_manage.py
[root@linux-node3 haproxy]# salt '*' saltutil.refresh_pillar
192.168.200.117:
    True
192.168.200.115:
    True
192.168.200.106:
    True

115
117
yum remove -y docker docker-common docker-selinux docker-engine
yum install -y yum-utils device-mapper-persistent-data lvm2
yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo
yum-config-manager --enable docker-ce-edge
yum-config-manager --enable docker-ce-test
yum list docker-ce --showduplicates | sort -r |grep stable
yum install -y docker-ce-17.06.2.ce
systemctl start docker
systemctl enable docker

mkdir -p /etc/docker
tee /etc/docker/daemon.json <<-'EOF'
{
  "registry-mirrors": ["https://k9lgui7f.mirror.aliyuncs.com"]
}
EOF
systemctl daemon-reload
systemctl restart docker


# yum install -y haproxy
# systemctl enable haproxy
# systemctl start haproxy
[root@linux-node3 ~]# salt '*' cmd.run 'yum install -y python-pip && pip install redis docker'

docker_nginx_manage.py

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本文作者：dongsheng
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