docker的应用部署

一 mysql的应用部署

1.1 mysql的端口映射原理

1.2  安装实例

1.拉取： docker  pull  mysql:5.7.29

2.查看镜像： docker  images

3.创建映射目录：mysql-5

在/root/docker-demo/mysql-5目录下，映射mysql信息

 4.创建容器

[root@localhost mysql-c5]# docker run -id \
> -p 3307:3306 \
> --name=c5_mysql \
> -v $PWD/conf:/etc/mysql/conf.d \
> -v $PWD/logs:/logs \
> -v $PWD/data:/var/lib/mysql \
> -e MYSQL_ROOT_PASSWORD=123456 \
> mysql:5.7.29
bb7eb9a47752ca295537b70845ae6b0df4a6c25067e89f5b858e26b8e5964668
[root@localhost mysql-c5]# docker exec -it c5_mysql /bin/bash
root@bb7eb9a47752:/# mysql -uroot -p123456
mysql: [Warning] Using a password on the command line interface can be insecure.
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 2
Server version: 5.7.29 MySQL Community Server (GPL)

Copyright (c) 2000, 2020, Oracle and/or its affiliates. All rights reserved.

Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

5.外部容器进行连接

二 tomcat的安装实例

1.搜索镜像 docker  search tomcat

2.拉取镜像： docker pull tomcat:8.5.6

3.创建一个宿主机映射目录

在/root目录下创建tomcat-c4目录用于存储tomcat数据信息

[root@localhost docker-demo]# mkdir -p tomcat-c4
[root@localhost docker-demo]# ls
tomcat-c3  tomcat-c4
[root@localhost docker-demo]# cd tomcat-c4
[root@localhost tomcat-c4]# ls
4.进入tomcat-c4，创建容器

[root@localhost tomcat-c4]# docker run -id --name=c4_tomcat \
> -p 8080:8080 \
> -v $PWD:/usr/local/tomcat/webapps \
> tomcat:8.5.6 
b891a7711651457a52a4850417271a54f25b82b1a425914d24ffe383ed31dc78
[root@localhost tomcat-c4]# docker ps -a
CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS                        PORTS                    NAMES
b891a7711651        tomcat:8.5.6        "catalina.sh run"   8 seconds ago       Up 6 seconds                  0.0.0.0:8080->8080/tcp   c4_tomcat
5caa9158a844        tomcat:8.5.6        "/bin/bash"         37 minutes ago      Exited (0) 2 minutes ago                               c3
2d8387fa297f        tomcat:8.5.6        "catalina.sh run"   55 minutes ago      Exited (143) 45 minutes ago                            c2
4449d5029056        tomcat:8.5.6        "catalina.sh run"   58 minutes ago      Exited (143) 45 minutes ago                            c1
[root@localhost tomcat-c4]# docker exec -it c4_tomcat /bin/bash
root@b891a7711651:/usr/local/tomcat# ls
LICENSE  NOTICE  RELEASE-NOTES    RUNNING.txt  bin  conf    include  lib  logs  native-jni-lib  temp  webapps  work
root@b891a7711651:/usr/local/tomcat# cd bin
root@b891a7711651:/usr/local/tomcat/bin# ./startup.sh 
Tomcat started.

参数说明：

• -p 8080:8080：将容器的8080端口映射到主机的8080端口

  -v $PWD:/usr/local/tomcat/webapps：将主机中当前目录挂载到容器的webapps

5.外面访问，现在访问不到

 6.在宿主机tomcat_c4目录下，新建一个test目录，下面再建一个index.html

[root@localhost docker-demo]# cd tomcat-c4
[root@localhost tomcat-c4]# ls
[root@localhost tomcat-c4]# ls
[root@localhost tomcat-c4]# mkdir -p test
[root@localhost tomcat-c4]# cd test
[root@localhost test]# touch index.html
[root@localhost test]# vi index.html 
[root@localhost test]# 

其中index.html的内容为：

[root@localhost test]# more index.html 
<h1>hello  docker !</h1>
7.页面访问：

 8.注意，宿主机要关闭防火墙，外部主机才能访问到