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Docker安裝

安裝環境:Centos7

1.安裝docker

 yum install -y docker

2.配置阿里雲docker映象服務

在阿里雲容器映象服務裡有個映象加速器,在裡面可以得到私有的映象加速地址

下面編輯docker映象加速

vi /etc/docker/daemon.json

會得到如下內容

{}

下面來改造它

{
  "registry-mirrors": ["https://你的私有地址.mirror.aliyuncs.com"]
}

儲存檔案進行docker配置檔案過載

sudo
 
 systemctl daemon-reload

3.配置docker開機啟動

systemctl enable docker.service

4.啟動docker

systemctl start docker.service

5.建立docker網絡卡

docker network create subnet=172.21.0.0/16 rabbitmqnet

安裝docker-conpose

curl -L https://github.com/docker/compose/releases/download/1.21.1/docker-compose-`uname -s`-`uname -m`
 
 -o /usr/local/bin/docker-compose
chmod +x /usr/local/bin/docker-compose

完成後就可以使用docker-compose了

使用配置rabbitmq叢集

1.編寫yml檔案

第一個叢集伺服器yml配置-ram儲存模式

version: '3.6'
networks:
 rabbit:
  external:
   name: rabbitmqnet
services:
 rabbitmq:
  image: rabbitmq:management
  ports:
   - "4369:4369"
   - "5671:5671"
 

   - "25672:25672"
   - "5672:5672"
   - "15672:15672"
  container_name: rabbitmq1
  hostname: rabbitmq1
  networks:
   - rabbit
  environment:
   RABBITMQ_NODENAME: rabbitmq1
   RABBITMQ_ERLANG_COOKIE: CURIOAPPLICATION
  volumes:
   - ./rabbitmq.sh:/home/rabbitmq.sh

第二個叢集伺服器配置-ram儲存模式

version: '3.6'
networks:
 rabbit:
  external:
   name: rabbitmqnet
services:
 rabbitmq2:
  image: rabbitmq:management
  ports:
   - "4369:4369"
   - "5671:5671"
   - "25672:25672"
   - "5672:5672"
   - "15672:15672"
  container_name: rabbitmq2
  hostname: rabbitmq2
  networks:
   - rabbit
  environment:
   RABBITMQ_NODENAME: rabbitmq2
   RABBITMQ_ERLANG_COOKIE: CURIOAPPLICATION
  volumes:
   - ./rabbitmq.sh:/home/rabbitmq.sh

第三個叢集伺服器配置-disk儲存模式

version: '3.6'
networks:
 rabbit:
  external:
   name: rabbitmqnet
services:
 rabbitmq3:
  image: rabbitmq:management
  ports:
   - "4369:4369"
   - "5671:5671"
   - "25672:25672"
   - "5672:5672"
   - "15672:15672"
  container_name: rabbitmq3
  hostname: rabbitmq3
  networks:
   - rabbit
  environment:
   RABBITMQ_NODENAME: rabbitmq3
   RABBITMQ_ERLANG_COOKIE: CURIOAPPLICATION

如果是配置在同一臺宿主伺服器這三個檔案可以寫在一個檔案裡,直接生成三臺叢集伺服器.

2.shell檔案

如果想用ram儲存就用第一個shell檔案,用硬碟儲存就用第二個shell檔案

ram叢集伺服器shell檔案

rabbitmqctl stop_app
rabbitmqctl reset
rabbitmqctl join_cluster --ram rabbitmq3@rabbitmq3
rabbitmqctl start_app

disk叢集伺服器shell檔案

rabbitmqctl stop_app
rabbitmqctl reset
rabbitmqctl join_cluster rabbitmq3@rabbitmq3
rabbitmqctl start_app

完成配置

1.生成容器

docker-compose -f rabbitmq1.yml -d up
docker-compose -f rabbitmq2.yml -d up
docker-compose -f rabbitmq2.yml -d up

2.進入容器執行shell檔案完成叢集連線

chmow +x /home/rabbitmq.sh
./home/rabbitmq.sh

這樣就完成了rabbitmq叢集伺服器的配置,超級簡單吧!

以下是經常遇到的問題,百度來的,下面的內容來自 醇氧 的CSDN 部落格

問題一：

sudo rabbitmqctl join_cluster --ram [email protected]
Clustering node [email protected] with [email protected]
Error: unable to connect to nodes [email protected]]: nodedown

DIAGNOSTICS
===========
attempted to contact: [[email protected]]
[email protected]:
  * unable to connect to epmd (port 4369) on rabbitmq-node1: nxdomain (non-existing domain)
current node details:
- node name: 'rabbitmqctl-526rabbitmq-node1'
- home dir: /var/lib/rabbitmq
- cookie hash: 50YO3zK+HJHos0tab1vHjg==

解決之道：
叢集節點間需能互相訪問，故每個叢集節點的hosts檔案應包含叢集內所有節點的資訊以保證互相解析

vim /etc/hosts
1 IP    [email protected]
2 IP    [email protected]
3 IP    [email protected]

之後重啟各節點中的rabbitmq

問題二：

cluster搭建起來後若在web管理工具中rabbitmq_management的Overview的Nodes部

“Node statistics not available”

說明在該節點上web管理外掛還未啟用。

直接在顯示提示資訊的節點上執行

 rabbitmq-plugins enable rabbitmq_management

Error: mnesia_unexpectedly_running

原因：忘記先停止stop_app
解決：

rabbitmqctl stop_app

問題三：

[[email protected] ~]$ sudo rabbitmqctl start_app
Starting node [email protected] ...
BOOT FAILED
===========
Error description:
   {error,{inconsistent_cluster,"Node [email protected]  thinks it's clustered with node [email protected], but [email protected] disagrees"}}
Log files (may contain more information):
   /var/log/rabbitmq/[email protected]
   /var/log/rabbitmq/[email protected]
Stack trace:
   [{rabbit_mnesia,check_cluster_consistency,0},
    {rabbit,'-start/0-fun-0-',0},
    {rabbit,start_it,1},
    {rpc,'-handle_call_call/6-fun-0-',5}]
Error: {rabbit,failure_during_boot,
           {error,
               {inconsistent_cluster,
                   "Node [email protected] thinks it's clustered with node [email protected], but [email protected] disagrees"}}}

需要重置一下

[[email protected]~]$  rabbitmqctl reset
Resetting node [email protected] ...
[[email protected]~]$ rabbitmqctl start_app
Starting node [email protected] ...

問題四：

[[email protected] mnesia]# rabbitmqctl join_cluster [email protected]
Clustering node '[email protected]' with '[email protected]' ...
Error: {corrupt_or_missing_cluster_files,{error,enoent},{error,enoent}}