docker运行nginx并上线运行

思路

1、搜索nginx镜像

docker search nginx

2、拉取镜像

docker pull nginx

3、启动镜像

docker run nginx

4、进入容器内部

docker exec -it 容器id /bin/bash

5、远程访问nginx

http://42.192.206.87:3344/

image.png

[root@VM-0-11-centos home]# docker seach nginx
[root@VM-0-11-centos home]# docker pull nginx
Using default tag: latest
latest: Pulling from library/nginx
b4d181a07f80: Pull complete
edb81c9bc1f5: Pull complete
b21fed559b9f: Pull complete
03e6a2452751: Pull complete
b82f7f888feb: Pull complete
5430e98eba64: Pull complete
Digest: sha256:47ae43cdfc7064d28800bc42e79a429540c7c80168e8c8952778c0d5af1c09db
Status: Downloaded newer image for nginx:latest
docker.io/library/nginx:latest
[root@VM-0-11-centos home]# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
nginx latest 4f380adfc10f 2 days ago 133MB
centos latest 300e315adb2f 6 months ago 209MB

d 后台运行

--name 给容器命名

-p 宿主机端口：容器端口

[root@VM-0-11-centos home]# doccker run -d --name nginx01 -p:3344:80 nginx
-bash: doccker: 未找到命令
[root@VM-0-11-centos home]# dccker run -d --name nginx01 -p:3344:80 nginx
-bash: dccker: 未找到命令
[root@VM-0-11-centos home]# docker run -d --name nginx01 -p:3344:80 nginx
85e958e7da931029c2aa3d0134e4d5488724498068ab438aba9a8741e060bfa6
[root@VM-0-11-centos home]# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
nginx latest 4f380adfc10f 2 days ago 133MB
centos latest 300e315adb2f 6 months ago 209MB
[root@VM-0-11-centos home]# docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
85e958e7da93 nginx "/docker-entrypoint.…" 41 seconds ago Up 40 seconds 0.0.0.0:3344->80/tcp, :::3344->80/tcp nginx01
7f801f6d7bb4 centos "/bin/sh -c 'while t…" 51 minutes ago Up 51 minutes sweet_mendel
[root@VM-0-11-centos home]# curl localhost:3344

Welcome to nginx!

If you see this page, the nginx web server is successfully installed and
working. Further configuration is required.

For online documentation and support please refer to
nginx.org.

Commercial support is available at
nginx.com.

Thank you for using nginx.

[root@VM-0-11-centos home]# dcoker ps
-bash: dcoker: 未找到命令
[root@VM-0-11-centos home]# docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
85e958e7da93 nginx "/docker-entrypoint.…" 7 minutes ago Up 7 minutes 0.0.0.0:3344->80/tcp, :::3344->80/tcp nginx01
7f801f6d7bb4 centos "/bin/sh -c 'while t…" 58 minutes ago Up 58 minutes sweet_mendel

进入容器

[root@VM-0-11-centos home]# docker exec -it nginx01 /bin/bash
root@85e958e7da93:/# where nginx
bash: where: command not found
root@85e958e7da93:/# whereis nginx
nginx: /usr/sbin/nginx /usr/lib/nginx /etc/nginx /usr/share/nginx
root@85e958e7da93:/# cd etc/nginx/
root@85e958e7da93:/etc/nginx# ls
conf.d fastcgi_params mime.types modules nginx.conf scgi_params uwsgi_params
root@85e958e7da93:/etc/nginx# exit #退出容器
exit
[root@VM-0-11-centos home]# docker stop nginx
Error response from daemon: No such container: nginx

端口暴露的概念：

image.png

思考问题：我们每次改动nginx配置文件，都需要进入容器内部？十分的麻烦，我要是可以在容器外部提供一个映射路径，达到在容器修改文件名，容器内部就自动修改？ -v 数据卷！

练习： docker装一个tomcat