docker swarm 集群及可视化界面的安装及配置

博客园 - moonvan

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moonvan · 2017-05-26 · via 博客园 - moonvan

本文是swarm docker集群的实施文档

环境： centos 7

192.168.1.23 swarm-manager rethinkdb controller swarm-agent consul-c1 registrator

192.168.1.45 registrator swarm-agent consul-s3

192.168.1.65 registrator swarm-agent consul-s2

192.168.1.66 registrator swarm-agent consul-s2

192.168.1.70 registrator consul-c2 consul-template (nginx、haproxy)

192.168.1.71 registrator consul-c2 consul-template (nginx、haproxy)

docker-engine 1.12.4

一、安装 docker-engine 1.12.4

1、先检查是否安装旧版本docker

rpm -qa|grep docker
如果有先卸载
yum remove docker*

2.编辑docker.repo文件，写入如下内容

cat >> /etc/yum.repos.d/docker-main.repo << EOF
name=Docker main Repository
baseurl=https://yum.dockerproject.org/repo/main/centos/7
enabled=1
gpgcheck=1
gpgkey=
EOF

3.安装docker

yum -y install docker-engine

4.关闭防火墙和selinux

systemctl stop firewalld.service
systemctl disable firewalld.service
关闭selinux
sed -i 's/SELINUX=.*/SELINUX=disabled/g' /etc/selinux/config 
重启

5.增加tcp监听端口

修改/lib/systemd/system/docker.service
sed -i 's/ExecStart=.*/ExecStart=\/usr\/bin\/dockerd -H unix\:\/\/\/var\/run\/docker.sock -D -H tcp\:\/\/0.0.0.0\:2375/g' /lib/systemd/system/docker.service

6.重启docker

systemctl enable docker.service
systemctl restart docker
ps -ef|grep docker
能看到docker启动及2375端口

7、安装pip及docker api

yum -y install epel-release
yum -y install python-pip
pip install docker-py docker-compose

二、配置consul cluster

1、创建 consul 用户及组

groupadd -g 1000 consul
useradd -u 100 -g 1000 -s /sbin/nologin consul

2、创建consul 数据存储文件夹

mkdir -p /opt/consul/{data,conf}
chown -R consul: /opt/consul

3、拉取consul镜像

docker pull progrium/consul
提示:目录没有官方出consul镜像，以上consul镜像是星数最高的，也是consul官方推荐的第三方docker image

4、启动 consul server 192.168.1.66

docker run -d \
    -p 8300:8300 \
    -p 8301:8301 \
    -p 8301:8301/udp \
    -p 8302:8302 \
    -p 8302:8302/udp \
    -p 8400:8400 \
    -p 8500:8500 \
    -p 8600:53 \
    -p 8600:53/udp \
    -v /opt/consul/data:/data \
    -h consul-s1 \
    --restart=always \
    --name=consul-s1 \
    progrium/consul \
    -server -bootstrap-expect=1 \
    -ui-dir=/ui \
    -client 0.0.0.0 \
   -advertise 192.168.1.66

5、启动 consul server 192.168.1.65

docker run -d \
    -p 8300:8300 \
    -p 8301:8301 \
    -p 8301:8301/udp \
    -p 8302:8302 \
    -p 8302:8302/udp \
    -p 8400:8400 \
    -p 8500:8500 \
    -p 8600:53 \
    -p 8600:53/udp \
    -v /opt/consul/data:/data \
    -h consul-s2 \
    --restart=always \
    --name=consul-s2 \
    progrium/consul \
    -server \
    -ui-dir=/ui \
    -client 0.0.0.0 \
   -advertise 192.168.1.65 -join 192.168.1.66

6、启动 consul server 192.168.1.45

docker run -d \
    -p 8300:8300 \
    -p 8301:8301 \
    -p 8301:8301/udp \
    -p 8302:8302 \
    -p 8302:8302/udp \
    -p 8400:8400 \
    -p 8500:8500 \
    -p 8600:53 \
    -p 8600:53/udp \
    -v /opt/consul/data:/data \
    -h consul-s3 \
    --restart=always \
    --name=consul-s3 \
    progrium/consul \
    -server \
    -ui-dir=/ui \
    -client 0.0.0.0 \
   -advertise 192.168.1.45 -join 192.168.1.66

7、启动 consul Client 192.168.1.23

docker run -d -h consul-c1 \
-p 8300:8300 \
-p 8301:8301 \
-p 8301:8301/udp \
-p 8302:8302 \
-p 8302:8302/udp \
-p 8400:8400 \
-p 8500:8500 \
-p 8600:53 \
-p 8600:53/udp \
 -v /opt/consul/data:/data \
--restart=always \
--name=consul-c1 \
progrium/consul -advertise 192.168.1.23  -join 192.168.1.66

8、启动 consul Client 192.168.1.70

docker run -d -h consul-c2 \
-p 8300:8300 \
-p 8301:8301 \
-p 8301:8301/udp \
-p 8302:8302 \
-p 8302:8302/udp \
-p 8400:8400 \
-p 8500:8500 \
-p 8600:53 \
-p 8600:53/udp \
 -v /opt/consul/data:/data \
--restart=always \
--name=consul-c2 \
progrium/consul -advertise 192.168.1.70  -join 192.168.1.66

9、启动 consul Client 192.168.1.71

docker run -d -h consul-c3 \
-p 8300:8300 \
-p 8301:8301 \
-p 8301:8301/udp \
-p 8302:8302 \
-p 8302:8302/udp \
-p 8400:8400 \
-p 8500:8500 \
-p 8600:53 \
-p 8600:53/udp \
 -v /opt/consul/data:/data \
--restart=always \
--name=consul-c3 \
progrium/consul -advertise 192.168.1.71  -join 192.168.1.66

10、关闭consul-s1并删除容器

docker rm -rf consul-s1
重新启动一个新容器
docker run -d \
    -p 8300:8300 \
    -p 8301:8301 \
    -p 8301:8301/udp \
    -p 8302:8302 \
    -p 8302:8302/udp \
    -p 8400:8400 \
    -p 8500:8500 \
    -p 8600:53 \
    -p 8600:53/udp \
    -v /opt/consul/data:/data \
    -h consul-s2 \
    --restart=always \
    --name=consul-s2 \
    progrium/consul \
    -server \
    -ui-dir=/ui \
    -client 0.0.0.0 \
   -advertise 192.168.1.66 -join 192.168.1.65
 进入容器运行  consul  info 查询是否实现自动选举Leader

三、 registrator状态获取

依次启动
docker run \
    -d \
    --restart=always \
    --name=registrator \
    --net=host \
    -v /var/run/docker.sock:/tmp/docker.sock \
    gliderlabs/registrator \
    -ip 192.168.1.66 \
    consul://192.168.1.66:8500
    
    docker run \
    -d \
    --restart=always \
    --name=registrator \
    --net=host \
    -v /var/run/docker.sock:/tmp/docker.sock \
    gliderlabs/registrator \
    -ip 192.168.1.65 \
    consul://192.168.1.65:8500
    
    docker run \
    -d \
    --restart=always \
    --name=registrator \
    --net=host \
    -v /var/run/docker.sock:/tmp/docker.sock \
    gliderlabs/registrator \
    -ip 192.168.1.45 \
    consul://192.168.1.45:8500
    
    docker run \
    -d \
    --restart=always \
    --name=registrator \
    --net=host \
    -v /var/run/docker.sock:/tmp/docker.sock \
    gliderlabs/registrator \
    -ip 192.168.1.23 \
    consul://192.168.1.23:8500
    docker run \
    -d \
    --restart=always \
    --name=registrator \
    --net=host \
    -v /var/run/docker.sock:/tmp/docker.sock \
    gliderlabs/registrator \
    -ip 192.168.1.70 \
    consul://192.168.1.70:8500
    
    docker run \
    -d \
    --restart=always \
    --name=registrator \
    --net=host \
    -v /var/run/docker.sock:/tmp/docker.sock \
    gliderlabs/registrator \
    -ip 192.168.1.71 \
    consul://192.168.1.71:8500

四、安装 Shipyard+Swarm

1、 192.168.1.23

docker run -tid \
    -p 3375:3375 \
    --restart=always \
    --name shipyard-swarm-manager \
    swarm:latest \
    manage --host tcp://0.0.0.0:3375 consul://192.168.1.66:8500
 
docker run -tid \
     --restart=always \
     --name=shipyard-rethinkdb \
     -p 28015:28015 \
     -p 29015:29015 \
     -v /data/rethinkdb:/data \
     index.tenxcloud.com/docker_library/rethinkdb
     
docker run -tid \
    --restart=always \
    --name shipyard-controller \
    --link shipyard-rethinkdb:rethinkdb \
    --link shipyard-swarm-manager:swarm \
    -p 8080:8080 \
    dockerclub/shipyard:latest \
    server \
    -d tcp://swarm:3375

2、安装swarm-agent （192.168.1.66，192.168.1.65，192.168.1.45）

docker run -tid \

五、安装haproxy or nginx （192.168.1.70，192.168.1.71）

1、安装haproxy

http://www.haproxy.org/download/1.7/src/haproxy-1.7.0.tar.gz

yum -y install git patch gcc gcc-c++  readline-devel zlib-devel libffi-devel \
 openssl openssl-devel make autoconf automake libtool bison libxml2 \
 libxml2-devel libxslt-devel libyaml-devel  python  python-docutils \
 cmake imake expat-devel libaio libaio-devel bzr ncurses-devel wget \
 libjpeg libjpeg-devel libpng libpng-devel freetype freetype-devel  \
 pcre-devel curl-devel libmcrypt libmcrypt-devel
cd /tmp
wget http://www.haproxy.org/download/1.7/src/haproxy-1.7.0.tar.gz
tar -xvf /tmp/haproxy-1.7.0.tar.gz 
 make TARGET=linux31 PREFIX=/opt/haproxy
 make install PREFIX=/opt/haproxy

2、配置/opt/haproxy/conf/haproxy.conf

global
                log 127.0.0.1   local0

3、haproxy 启动脚本 /etc/init.d/haproxy

4、启动 haproxy 并加入开机启动

chmod +x haproxy 
chkconfig haproxy on
service haproxy start

5、安装nginx 并支支持数字证书

https://www.openssl.org/source/openssl-1.1.0c.tar.gz

http://nginx.org/download/nginx-1.11.7.tar.gz

yum -y install git patch gcc gcc-c++  readline-devel zlib-devel libffi-devel \
 openssl openssl-devel make autoconf automake libtool bison libxml2 \
 libxml2-devel libxslt-devel libyaml-devel  python  python-docutils \
 cmake imake expat-devel libaio libaio-devel bzr ncurses-devel wget \
 libjpeg libjpeg-devel libpng libpng-devel freetype freetype-devel  \
 pcre-devel curl-devel libmcrypt libmcrypt-devel
下载安装openssl
 cd /tmp
wget https://www.openssl.org/source/openssl-1.1.0c.tar.gz
 tar -xvf openssl-1.1.0c.tar.gz
 cd /tmp/openssl-1.1.0c
./config   --openssldir=/usr/local/ssl
make && make install
./config shared  --openssldir=/usr/local/ssl
make clean
make && make install

下载安装 nginx
cd /tmp
wget http://nginx.org/download/nginx-1.11.7.tar.gz
groupadd -r nginx
useradd -g nginx -r nginx 
tar -xvf nginx-1.11.7.tar.gz
cd /tmp/nginx-1.11.7
./configure --prefix=/usr/local/nginx \
--sbin-path=/usr/sbin/nginx \
--conf-path=/etc/nginx/nginx.conf \
--error-log-path=/var/log/nginx/error.log \
--http-log-path=/var/log/nginx/access.log \
--pid-path=/var/run/nginx.pid \
--lock-path=/var/run/nginx.lock \
--http-client-body-temp-path=/var/cache/nginx/client_temp \
--http-proxy-temp-path=/var/cache/nginx/proxy_temp \
--http-fastcgi-temp-path=/var/cache/nginx/fastcgi_temp \
--http-uwsgi-temp-path=/var/cache/nginx/uwsgi_temp \
--http-scgi-temp-path=/var/cache/nginx/scgi_temp \
--user=nginx \
--group=nginx \
--with-http_ssl_module \
--with-http_realip_module \
--with-http_addition_module \
--with-http_sub_module \
--with-http_dav_module \
--with-http_flv_module \
--with-http_mp4_module \
--with-http_gunzip_module \
--with-http_gzip_static_module \
--with-http_random_index_module \
--with-http_secure_link_module \
--with-http_stub_status_module \
--with-http_auth_request_module \
--with-threads \
--with-stream \
--with-openssl=/tmp/openssl-1.1.0c \

6、nginx 配置文件

修改/etc/nginx/nginx.conf
user  nginx;
worker_processes  1;

error_log  /var/log/nginx/error.log warn;
pid        /var/run/nginx.pid;


events {
    worker_connections  1024;
}


http {
    include       /etc/nginx/mime.types;
    default_type  application/octet-stream;

    log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
                      '$status $body_bytes_sent "$http_referer" '
                      '"$http_user_agent" "$http_x_forwarded_for"';

    access_log  /var/log/nginx/access.log  main;

    sendfile        on;
    tcp_nopush     on;

    keepalive_timeout  65;

    gzip  on;

    include user  nginx;
worker_processes  1;

error_log  /var/log/nginx/error.log warn;
pid        /var/run/nginx.pid;


events {
    worker_connections  1024;
}


http {
    include       /etc/nginx/mime.types;
    default_type  application/octet-stream;

    log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
                      '$status $body_bytes_sent "$http_referer" '
                      '"$http_user_agent" "$http_x_forwarded_for"';

    access_log  /var/log/nginx/access.log  main;

    sendfile        on;
    tcp_nopush     on;

    keepalive_timeout  65;

    gzip  on;

    include /etc/nginx/conf.d/*.conf;
}/*.conf;
}
 
创建 /etc/nginx/conf.d 文件夹
mkdir -p /etc/nginx/conf.d
添加nginx默认web配置文件
/etc/nginx/conf.d/default.conf
server {
        listen       80;
        server_name  localhost;

7、创建nginx 启动脚本 /etc/init.d/nginx

8、设置nginx开机启动并启动nginx

chmod +x nginx 
chkconfig nginx on
service nginx start

六、安装consul-template 实现服务器自动发现

1、下载consul-template

https://releases.hashicorp.com/consul-template/0.16.0/consul-template_0.16.0_linux_amd64.zip

cd /tmp
wget https:

2、consul-template haproxy配置

cat > /opt/consul/conf/haproxy_ctmpl.json << EOF
consul = "127.0.0.1:8500"
  
template {
  source = "/opt/haproxy/conf/haproxy.ctmpl"
  destination = "/opt/haproxy/conf/haproxy.conf"
  command = "/etc/init.d/haproxy reload"
}
EOF

3、 /opt/haproxy/conf/haproxy.ctmpl 配置

 global  
                log 127.0.0.1   local0  
                #log 127.0.0.1  local1 notice  
                #log loghost    local0 info  
                maxconn 50000  
                chroot /opt/haproxy
                uid 99  
                gid 99 

                daemon  
                nbproc 2
                pidfile /opt/haproxy/run/haproxy.pid  
                #debug  
                #quiet  
   
 defaults  
                mode    tcp  
                option  dontlognull  
                option  forwardfor  
                option  redispatch  
                retries 2  
                balance static-rr
                stats enable
                stats uri /ha?stats 
                timeout connect     3000  
                timeout client      50000  
                timeout server 50000  




listen admin_stat  
        bind *:8888    
        mode http  
        #log global   
        stats refresh 30s  
        stats uri /admin?stats  
        stats realm Haproxy\ Statistics 
        stats auth admin:admin 
        #stats hide-version  

frontend www
         bind *:80
         mode http
         acl apache  hdr(HOST) apache.zone.com
         acl nginx   hdr(HOST) nginx.zone.com
         use_backend apache.qkazone.com if apache
         use_backend nginx.qkazone.com if nginx
backend apache.zone.com
        balance         roundrobin
        mode            http
{{range service "apache-php-80"}}
        server  apache {{.Address}}:{{.Port}} check {{end}}

backend nginx.zone.com
        mode http
        balance         roundrobin
{{range service "nginx-80"}}
        server  nginx {{.Address}}:{{.Port}} check {{end}}

listen login
        bind *:9999
        mode tcp
        balance roundrobin
        #log 127.0.0.1 local0 debug
        {{range service "centos7"}}
        server  ssh {{.Address}}:{{.Port}} check {{end}}

4、配置consul-template haproxy 启动脚本 /etc/init.d/haproxy_ctmpl

#!/bin/bash

5、设置开机启动，启动

chmod +x haproxy_ctmpl 
chkconfig haproxy_ctmpl on
service haproxy_ctmpl start

6、consul-template nginx配置 /opt/consul/conf/nginx_ctmpl.json

cat > /opt/consul/conf/nginx_ctmpl.json << EOF
consul = "127.0.0.1:8500"
  
template {
  source = "/etc/nginx/conf.d/nginx_web.ctmpl"
  destination = "/etc/nginx/conf.d/nginx_web.conf"
  command = "/usr/sbin/nginx  -s reload"
}
EOF

7、/etc/nginx/conf.d/nginx_web.ctmpl 配置

upstream apache {
    ip_hash;
    # Refer: http://nginx.org/en/docs/http/ngx_http_upstream_module.html#upstream
    # least_conn;
    # least_time;
{{range service "apache-php-80"}}
    server {{.Address}}:{{.Port}} fail_timeout=0;
{{end}}
    keepalive 64;
}
server {
    listen 80;
    server_name apache.zone.com;
    location / {
        client_max_body_size    0;
        proxy_connect_timeout 300s;
        proxy_send_timeout   900;
        proxy_read_timeout   900;
        proxy_buffer_size    32k;
        proxy_buffers      4 32k;
        proxy_busy_buffers_size 64k;
        proxy_redirect     off;
        proxy_hide_header  Vary;
        proxy_set_header   Accept-Encoding '';
        proxy_set_header   Host   $host;
        proxy_set_header   Referer $http_referer;
        proxy_set_header   Cookie $http_cookie;
        proxy_set_header   X-Real-IP  $remote_addr;
        proxy_set_header   X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header   Host $host;
        proxy_set_header   X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_headers_hash_max_size 51200;
        proxy_headers_hash_bucket_size 6400;
        proxy_pass          http://apache/;
    }
}
upstream nginx {
    ip_hash;
    # Refer: http://nginx.org/en/docs/http/ngx_http_upstream_module.html#upstream
    # least_conn;
    # least_time;
{{range service "nginx-80"}}
    server {{.Address}}:{{.Port}} fail_timeout=0;
{{end}}
    keepalive 64;
}
server {
    listen 80;
    server_name nginx.zone.com;
    location / {
        client_max_body_size    0;
        proxy_connect_timeout 300s;
        proxy_send_timeout   900;
        proxy_read_timeout   900;
        proxy_buffer_size    32k;
        proxy_buffers      4 32k;
        proxy_busy_buffers_size 64k;
        proxy_redirect     off;
        proxy_hide_header  Vary;
        proxy_set_header   Accept-Encoding '';
        proxy_set_header   Host   $host;
        proxy_set_header   Referer $http_referer;
        proxy_set_header   Cookie $http_cookie;
        proxy_set_header   X-Real-IP  $remote_addr;
        proxy_set_header   X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header   Host $host;
        proxy_set_header   X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_headers_hash_max_size 51200;
        proxy_headers_hash_bucket_size 6400;
        proxy_pass          http://nginx/;
    }
}

8、配置consul-template nginx启动脚本 /etc/init.d/nginx_ctmpl

#!/bin/bash

9、设置开机启动

chmod +x nginx_ctmpl 
chkconfig nginx_ctmpl on
service nginx_ctmpl start

七、测试是否自动发现

docker run -ti -d -p :80 eboraas/apache-php 
docker run -d -ti -p :80 nginx

1、打开 http://192.168.1.66:8500/ui/#/dc1/services

2、 http://192.168.1.23:8080/#/containers

查看shipyard 管理平台

账号admin密码 shipyard

3、haproxy

http://192.168.1.70:8888/admin?stats

http://192.168.1.71:8888/admin?stats

账号：admin 密码admin

最后：注意事项： consul registrator 是基于端口发现的不映射端口是发现不了的

consul 服务挂了整个宿主机运行应用将不可见。 registrator 是基于镜像名加端口服务

镜像名称为nginx 多端口暴露对外发现的服务名称nginx-80 单个端口暴露就是镜像名称为服务名

像集群添加宿主机

consul registrator swarm-agent registrator 链接 consul 端口请使用宿主机的 consul 端口

使用其它机器端口如果其它机器挂了这台宿主机的应用不可被发现

此内容由惯性聚合(RSS阅读器)自动聚合整理，仅供阅读参考。原文来自 — 版权归原作者所有。

推荐订阅源

博客园 - moonvan

镜像名称为nginx 多端口暴露 对外发现的服务名称nginx-80 单个端口暴露就是镜像名称为服务名

镜像名称为nginx 多端口暴露对外发现的服务名称nginx-80 单个端口暴露就是镜像名称为服务名