1、下载安装脚本wget https://github.com/XTLS/Xray-install/raw/main/install-release.sh
2、执行脚本chmod +x install-release.sh
./install-release.sh
分类目录归档：LINUX
docker学习（13）—镜像仓库的管理系统
一、容器的生命周期实践
1、什么是容器
容器类似胶囊公寓，它是一个精简版的操作系统，一般容器中只运行一个应用
2、容器是怎么来的
通过镜像创建容器，就是通过docker run命令创建的
3、容器有什么作用
容器起到了隔离的作用，独享空间、网络等等
4、常用命令docker run --help
docker ps
docker stop 容器ID
docker start 容器ID
docker kill 容器ID
docker restart 容器ID
docker rm 容器ID
docker rm -f 容器ID
docker学习（12）—docker镜像/仓库管理
一、docker镜像分层结构
最底层是一个base层，也即是一个操作系统层。它还会从base一层层的叠加生成
二、什么是层层叠加？
例如，安装一个软件，它就会在base层的基础上追加一层。它的好处就是资源共享
三、加速器的配置
1、计算时间time docker pull nginx
2、创建或修改/etc/docker/daemon.json
添加：
{
"registry-mirrors": [
"https://registry.docker-cn.com",
"http://hub-mirror.c.163.com",
"https://docker.mirrors.ustc.edu.cn"
]
}CentOS使用podman代替docker
1、podman
（1）podman没有守护进程
（2）非root账户可以使用podman
（3）兼容docker镜像
（4）用法是和docker一致，只需要将命令中的docker更改为podman即可
2、安装yum install podman
3、配置文件路径/etc/containers
（1）配置容器仓库：/etc/containers/registries.conf[registries.search]
registries = ['registry.access.redhat.com', 'registry.redhat.io', 'docker.io']
（2）配置镜像存储路径：/etc/containers/storage.confgraphroot = "/var/lib/containers/storage"
CentOS8升级到RockyLinux
1、CentOS8官方更新源都关闭了，导致yum、dnf命令用不了。本来想升级到CentOS Stream 8，更新源不能用，安装不了centos-stream-repos包，而不安装centos-stream-repos又升级不了CentOS Stream，陷入死循环。。。
2、于是转投RockyLinux，在用脚本升级到RockyLinux看到还保留了一个地址：
https://dl.rockylinux.org/vault/centos/8.5.2111/
可以从这里安装需要的软件包，从而可以正常升级到CentOS Stream 8
3、升级RockyLinux脚本下载地址：
https://github.com/rocky-linux/rocky-tools/tree/main/migrate2rocky
4、CentOS Vault
https://vault.centos.org
yum update排除指定包
今天更新系统时报错：
Error: Package: 1:nginx-mod-http-perl-1.20.1-9.el7.x86_64 (@epel)
Requires: nginx(abi) = 1.20.1
Removing: 1:nginx-1.20.1-9.el7.x86_64 (@epel)
nginx(abi) = 1.20.1
Updated By: 1:nginx-1.20.2-1.el7.ngx.x86_64 (nginx)
Not found
Error: Package: 1:nginx-mod-stream-1.20.1-9.el7.x86_64 (@epel)
Requires: nginx(abi) = 1.20.1
Removing: 1:nginx-1.20.1-9.el7.x86_64 (@epel)
nginx(abi) = 1.20.1
Updated By: 1:nginx-1.20.2-1.el7.ngx.x86_64 (nginx)
Not found
Error: Package: 1:nginx-mod-mail-1.20.1-9.el7.x86_64 (@epel)
Requires: nginx(abi) = 1.20.1
Removing: 1:nginx-1.20.1-9.el7.x86_64 (@epel)
nginx(abi) = 1.20.1
Updated By: 1:nginx-1.20.2-1.el7.ngx.x86_64 (nginx)
Not found
Error: Package: 1:nginx-mod-http-image-filter-1.20.1-9.el7.x86_64 (@epel)
Requires: nginx(abi) = 1.20.1
Removing: 1:nginx-1.20.1-9.el7.x86_64 (@epel)
nginx(abi) = 1.20.1
Updated By: 1:nginx-1.20.2-1.el7.ngx.x86_64 (nginx)
Not found
Error: Package: 1:nginx-mod-http-xslt-filter-1.20.1-9.el7.x86_64 (@epel)
Requires: nginx(abi) = 1.20.1
Removing: 1:nginx-1.20.1-9.el7.x86_64 (@epel)
nginx(abi) = 1.20.1
Updated By: 1:nginx-1.20.2-1.el7.ngx.x86_64 (nginx)
Not found
You could try using --skip-broken to work around the problem
You could try running: rpm -Va --nofiles --nodigest
感觉是epel源和nginx源有冲突，所以可以更新时先排除nginx这个软件包
yum update -x {package-name}
CentOS7 安装nginx
1、依赖包yum install gcc gcc-c++ autoconf automake make pcre pcre-devel zlib zlib-devel
2、编译
下载nginx源代码包，解压后编译./configure --prefix=/appserver/nginx
make && make install
3、建立配置文件
cd /appserver/nginx
mkdir include
vi proxy.conf
输入：
upstream proxy_tomcat {
server 192.168.52.9:8080;
}
server {
location /tomcat/ {
proxy_pass http://proxy_tomcat/;
proxy_redirect off;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
client_max_body_size 10m;
client_body_buffer_size 128k;
proxy_connect_timeout 300;
proxy_send_timeout 300;
proxy_read_timeout 300;
proxy_buffer_size 4k;
proxy_buffers 4 32k;
proxy_busy_buffers_size 64k;
proxy_temp_file_write_size 64k;
}
location /okfep/ {
proxy_pass http://proxy_tomcat/okfep;
proxy_redirect off;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
client_max_body_size 10m;
client_body_buffer_size 128k;
proxy_connect_timeout 300;
proxy_send_timeout 300;
proxy_read_timeout 300;
proxy_buffer_size 4k;
proxy_buffers 4 32k;
proxy_busy_buffers_size 64k;
proxy_temp_file_write_size 64k;
}
}
4、nginx.conf添加include
http {
include ../include/*.conf;
include mime.types;
default_type application/octet-stream;
......
}
5、nginx.conf修改nginx启动用户
......
user root;
worker_processes 1;
......
docker学习（11）—使用docker安装rabbitmq 3.8
1、镜像的区别
management：带管理页面的
alpine：基于Alpine Linux制作的镜像
所以我们要选择带管理页面的版本
2、拉取镜像docker pull rabbitmq:3.8-management
3、启动命令
建立配置目录、数据目录、日志目录mkdir -p /data/rabbitmq/etc
mkdir -p /data/rabbitmq/lib
mkdir -p /data/rabbitmq/log
设置权限chmod 777 /data/rabbitmq/etc
chmod 777 /data/rabbitmq/lib
chmod 777 /data/rabbitmq/log
否则容器启动报错：touch: cannot touch '/etc/rabbitmq/rabbitmq.conf': Permission denied
redis学习（10）—redis哈希槽扩容与缩小
1、将节点重新加入集群
6387为主节点，6388为从节点
步骤看上一篇
2、重新分配槽号redis-cli --cluster reshard 192.168.1.138:6381
说明：
ip:port：为集群中任意一个节点就行
步骤一：
>>> Performing Cluster Check (using node 192.168.1.138:6381)
M: c790b5f9584777ba8d9f96be5fe42b2efe646635 192.168.1.138:6381
slots:[0-5460] (5461 slots) master
1 additional replica(s)
S: 7599539245821b1a2e185439f3170b896b287106 192.168.1.138:6388
slots: (0 slots) slave
replicates ca77bc2a223c64a7af727b24172ae8f43d3e9b5a
S: b264b25c716863096d0c2fe39483130cbfeba894 192.168.1.138:6385
slots: (0 slots) slave
replicates f9200d36046d8325817c8014155e8f9950760da4
S: 33add5fdf6d9cc3eb8656c865403a34b237b4b73 192.168.1.138:6384
slots: (0 slots) slave
replicates 691e5855e8f274a6ea61dc95dbed89da87ed6053
S: d7bbc7bb0b501b421d527f6c302a8abe00aa535b 192.168.1.138:6386
slots: (0 slots) slave
replicates c790b5f9584777ba8d9f96be5fe42b2efe646635
M: f9200d36046d8325817c8014155e8f9950760da4 192.168.1.138:6383
slots:[10923-16383] (5461 slots) master
1 additional replica(s)
M: ca77bc2a223c64a7af727b24172ae8f43d3e9b5a 192.168.1.138:6387
slots: (0 slots) master
1 additional replica(s)
M: 691e5855e8f274a6ea61dc95dbed89da87ed6053 192.168.1.138:6382
slots:[5461-10922] (5462 slots) master
1 additional replica(s)
[OK] All nodes agree about slots configuration.
>>> Check for open slots...
>>> Check slots coverage...
[OK] All 16384 slots covered.
How many slots do you want to move (from 1 to 16384)? 4096redis学习（9）—redis集群扩容与缩小
1、准备
回顾，上一篇把6381变成fail，6386变成master
还原：6381重新变成了master，6386变成了slavedocker stop redis-node-6
docker start redis-node-6
2、查看集群信息
登录进容器redis-cli --cluster check 192.168.1.138:6381
3、增加2台redis节点mkdir -p /data/redis/share/redis-node-7
mkdir -p /data/redis/share/redis-node-8
docker create --name redis-node-7 --net host --privileged=true -v /data/redis/share/redis-node-7:/data redis:5.0.7 --cluster-enabled yes --appendonly yes --port 6387
docker create --name redis-node-8 --net host --privileged=true -v /data/redis/share/redis-node-8:/data redis:5.0.7 --cluster-enabled yes --appendonly yes --port 6388