centos 安装使用 docker - Docker - DevOPS - 学习 | Jalen's Blog = Follow your heart = A happy life

安装 docker，最好 centos 版本 7.x（不是可重装或参考网上 6.5 安装教程），linux 内核 3.1+（不是可升级内核），docker 安装详细可参考菜鸟教程

（1）查看 linux 版本

	[root@jalen demo-service-hi]# lsb_release -a
	LSB Version: :core-4.1-amd64:core-4.1-noarch
	Distributor ID: CentOS
	Description: CentOS Linux release 7.4.1708 (Core)
	Release: 7.4.1708
	Codename: Core

（2）查看内核版本

	[root@jalen demo-service-hi]# uname -r
	3.10.0-693.2.2.el7.x86_64

（3）安装 docker

[root@jalen demo-service-hi]# yum -y install docker

（4）关闭 / 启动 docker，也可使用 systemd 操作

	[root@jalen demo-service-hi]# service docker stop
	Redirecting to /bin/systemctl stop docker.service
	[root@jalen demo-service-hi]# service docker start
	Redirecting to /bin/systemctl start docker.service

以 spring cloud 项目为例，进入 maven 项目根目录

（1）打包镜像

	[root@jalen ~]# cd /usr/local/jalen/tomcat/demo-eureka-server/
	[root@jalen demo-eureka-server]# ls
	demo-eureka-server.iml mvnw mvnw.cmd pom.xml src target
	[root@jalen demo-eureka-server]# mvn clean package docker:build

（2）如果服务器购自类似搬瓦工等国外运营商，无需加速；

（3）如果是国内阿里云等，需做 docker 加速处理，否则超慢，可从 DaoCloud 获取镜像，将镜像链接添加到 /etc/docker/daemon.json 文件中

查看当前打包好的 docker 镜像，这里我打了两个，jalen/--*

	[root@jalen demo-service-hi]# docker images
	REPOSITORY TAG IMAGE ID CREATED SIZE
	jalen/demo-service-hi latest 8143462b6e72 10 seconds ago 203 MB
	jalen/demo-eureka-server latest 9ea3aae87063 2 minutes ago 208 MB
	<none> <none> d27ae327e5be 55 minutes ago 208 MB
	docker.io/frolvlad/alpine-oraclejdk8 slim afe006594870 2 weeks ago 167 MB

运行镜像，-p 指后台运行

	[root@jalen demo-eureka-server]# docker run -p 8761:8761 -t jalen/demo-eureka-server
	[root@jalen demo-eureka-server]# docker run -p 8763:8763 -t jalen/demo-service-hi

页面访问地址，47.98.242.28 是我的阿里云地址，8761 为服务注册中心，8763 为一个服务实例

http://47.98.242.28:8761/

http://47.98.242.28:8763/hi?name=jalen

查看当前服务器正在运行的 docker 镜像

	[root@jalen demo-eureka-server]# docker ps
	CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
	6c8edaed2497 jalen/demo-service-hi "java -Djava.secur..." 2 minutes ago Up 2 minutes 0.0.0.0:8763->8763/tcp jolly_visvesvaraya
	0635e97ec951 jalen/demo-eureka-server "java -Djava.secur..." 3 minutes ago Up 3 minutes 0.0.0.0:8761->8761/tcp dreamy_mcnulty

项目代码参考，可以使用 7z 打成 tar.gz 包到云上再执行以上操作

https://github.com/SincerelyUnique/spring-cloud-demo/tree/master/11docker deploy

除以上方法外，还可以使用 docker-compose 命令部署，一次直接部署多个镜像

[root@jalen 12docker deploy compose]# docker-compose up
Creating network "12dockerdeploycompose_default" with the default driver
Creating 12dockerdeploycompose_eureka-server_1 ... done
Creating 12dockerdeploycompose_service-hi_1    ... done
Attaching to 12dockerdeploycompose_eureka-server_1, 12dockerdeploycompose_service-hi_1
eureka-server_1  | 2018-04-19 01:06:37.923  INFO 1 --- [           main] s.c.a.AnnotationConfigApplicationContext : Refreshing org.springframework.context.annotation.AnnotationConfigApplicationContext@1376c05c: startup date [Thu Apr 19 01:06:37 GMT 2018]; root of context hierarchy
service-hi_1     | 2018-04-19 01:06:37.937  INFO 1 --- [           main] s.c.a.AnnotationConfigApplicationContext : Refreshing org.springframework.context.annotation.AnnotationConfigApplicationContext@1376c05c: startup date [Thu Apr 19 01:06:37 GMT 2018]; root of context hierarchy
eureka-server_1  | 2018-04-19 01:06:40.394  INFO 1 --- [           main] f.a.AutowiredAnnotationBeanPostProcessor : JSR-330 'javax.inject.Inject' annotation found and supported for autowiring
service-hi_1     | 2018-04-19 01:06:40.508  INFO 1 --- [           main] f.a.AutowiredAnnotationBeanPostProcessor : JSR-330 'javax.inject.Inject' annotation found and supported for autowiring
service-hi_1     | 2018-04-19 01:06:40.972  INFO 1 --- [           main] trationDelegate$BeanPostProcessorChecker : Bean 'configurationPropertiesRebinderAutoConfiguration' of type [org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration$$EnhancerBySpringCGLIB$$7e4594e4] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
eureka-server_1  | 2018-04-19 01:06:40.985  INFO 1 --- [           main] trationDelegate$BeanPostProcessorChecker : Bean 'configurationPropertiesRebinderAutoConfiguration' of type [org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration$$EnhancerBySpringCGLIB$$7e4594e4] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
eureka-server_1  | 
eureka-server_1  |   .   ____          _            __ _ _
eureka-server_1  |  /\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \
eureka-server_1  | ( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
eureka-server_1  |  \\/  ___)| |_)| | | | | || (_| |  ) ) ) )
eureka-server_1  |   '  |____| .__|_| |_|_| |_\__, | / / / /
eureka-server_1  |  =========|_|==============|___/=/_/_/_/
eureka-server_1  |  :: Spring Boot ::        (v1.5.2.RELEASE)
eureka-server_1  | 
eureka-server_1  | 2018-04-19 01:06:43.650  INFO 1 --- [           main] c.e.eureka.server.demo.DemoApplication   : No active profile set, falling back to default profiles: default
eureka-server_1  | 2018-04-19 01:06:43.752  INFO 1 --- [           main] ationConfigEmbeddedWebApplicationContext : Refreshing org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@3a82f6ef: startup date [Thu Apr 19 01:06:43 GMT 2018]; parent: org.springframework.context.annotation.AnnotationConfigApplicationContext@1376c05c
service-hi_1     | 
service-hi_1     |   .   ____          _            __ _ _
service-hi_1     |  /\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \
service-hi_1     | ( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
service-hi_1     |  \\/  ___)| |_)| | | | | || (_| |  ) ) ) )
service-hi_1     |   '  |____| .__|_| |_|_| |_\__, | / / / /
service-hi_1     |  =========|_|==============|___/=/_/_/_/
service-hi_1     |  :: Spring Boot ::        (v1.5.2.RELEASE)
service-hi_1     | 
service-hi_1     | 2018-04-19 01:06:43.991  INFO 1 --- [           main] c.e.service.hi.demo.DemoApplication      : No active profile set, falling back to default profiles: default
service-hi_1     | 2018-04-19 01:06:44.102  INFO 1 --- [           main] ationConfigEmbeddedWebApplicationContext : Refreshing org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@6d00a15d: startup date [Thu Apr 19 01:06:44 GMT 20

如果想要使用 docker-compose 后台部署，可以

[root@jalen 12docker deploy compose]# docker-compose up -d

项目代码参考

https://github.com/SincerelyUnique/spring-cloud-demo/tree/master/12docker deploy compose

项目部署到阿里云上后启动项目，浏览器访问超时

不同设备获取mac地址