目录
6、将由容器生成的镜像push到镜像仓库docker hub
基本思路:先下载Nginx镜像,然后运行一个Nginx容器,在容器中配置相关参数,最后把配置好的容器制作成一个镜像,后期发布到服务器上可以省去重复配置。
docker images

发现还没有下载过nginx镜像
首先查询可用的nginx镜像:
docker search nginx

就下载第一个nginx:
docker pull nginx

不指定版本号,默认就是最新版本

docker run --name mynginx -d -p 8989:80 nginx
# --name 给容器起一个名字
# -d 在后台运行
# -p 8989:80 把容器内的80端口映射到宿主机的8989端口

查看容器运行状态:
docker ps

访问验证:使用外部端口8989可以访问该容器nginx

进入容器:
docker exec -it mynginx /bin/bash
# -i: 交互式操作。
# -t: 终端。
# mynginx : nginx镜像。
# /bin/bash:放在镜像名后的是命令,这里我们希望有个交互式 Shell,因此用的是 /bin/bash。
- C:\Users\Administrator>docker exec -it mynginx /bin/bash
- root@1eb487ead85e:/# ls
- bin dev docker-entrypoint.sh home lib64 mnt proc run srv tmp var
- boot docker-entrypoint.d etc lib media opt root sbin sys usr
- root@1eb487ead85e:/# whereis nginx
- nginx: /usr/sbin/nginx /usr/lib/nginx /etc/nginx /usr/share/nginx
- root@1eb487ead85e:/# cd /etc/nginx
- root@1eb487ead85e:/etc/nginx# ls
- conf.d fastcgi_params mime.types modules nginx.conf scgi_params uwsgi_params
- root@1eb487ead85e:/etc/nginx# cd conf.d
- root@1eb487ead85e:/etc/nginx/conf.d# ls
- default.conf
- root@1eb487ead85e:/etc/nginx/conf.d# cat default.conf
- server {
- listen 80;
- listen [::]:80;
- server_name localhost;
-
- #access_log /var/log/nginx/host.access.log main;
-
- location / {
- root /usr/share/nginx/html;
- index index.html index.htm;
- }
-
- #error_page 404 /404.html;
-
- # redirect server error pages to the static page /50x.html
- #
- error_page 500 502 503 504 /50x.html;
- location = /50x.html {
- root /usr/share/nginx/html;
- }
-
- # proxy the PHP scripts to Apache listening on 127.0.0.1:80
- #
- #location ~ \.php$ {
- # proxy_pass http://127.0.0.1;
- #}
-
- # pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000
- #
- #location ~ \.php$ {
- # root html;
- # fastcgi_pass 127.0.0.1:9000;
- # fastcgi_index index.php;
- # fastcgi_param SCRIPT_FILENAME /scripts$fastcgi_script_name;
- # include fastcgi_params;
- #}
-
- # deny access to .htaccess files, if Apache's document root
- # concurs with nginx's one
- #
- #location ~ /\.ht {
- # deny all;
- #}
- }
-
- root@1eb487ead85e:/etc/nginx/conf.d# cd /usr/share/nginx/html
- root@1eb487ead85e:/usr/share/nginx/html# ls
- 50x.html index.html
可以看到nginx的默认配置是在/etc/nginx/conf.d/default.conf配置文件里,通过配置文件里
location / {
root /usr/share/nginx/html;
index index.html index.htm;
}
可以知道nginx的html文件目录,这样就可以把我们自己的代码拷贝到html文件夹下:
docker cp d:/html 1eb487ead85e:/usr/share/nginx
# docker cp 本机文件路径 容器id:容器内的路径
我们对nginx进行配置后,需要使用当前容器生成一个新的镜像,
我们可以通过命令 docker commit 来提交容器副本。
docker commit -m="更新配置" -a=lwpoor 1eb487ead85e lwpoor/nginx:1.0
# -m: 提交的描述信息
# -a: 指定镜像作者
# 1eb487ead85e :容器 ID
# lwpoor/nginx:1.0: 指定要创建的目标镜像名
- C:\Users\Administrator>docker commit -m="更新配置" -a=lwpoor 1eb487ead85e lwpoor/nginx:1.0
- sha256:110f8f64ca1ea47ba61b3c773b3fe5a07c13492a17e6378455dc6d254f17177e
-
- C:\Users\Administrator>docker images
- REPOSITORY TAG IMAGE ID CREATED SIZE
- lwpoor/nginx 1.0 110f8f64ca1e 9 seconds ago 224MB
首先需要登录 docker hub:
docker login
推送到镜像仓库:
docker push lwpoor/nginx:1.0
- C:\Users\Administrator>docker login
- Authenticating with existing credentials...
- Login Succeeded
-
- Logging in with your password grants your terminal complete access to your account.
- For better security, log in with a limited-privilege personal access token. Learn more at https://docs.docker.com/go/access-tokens/
-
- C:\Users\Administrator>docker push lwpoor/nginx:1.0
- The push refers to repository [docker.io/lwpoor/nginx]
- c269977a08d5: Pushed
- d874fd2bc83b: Mounted from library/nginx
- 32ce5f6a5106: Mounted from library/nginx
- f1db227348d0: Mounted from library/nginx
- b8d6e692a25e: Mounted from library/nginx
- e379e8aedd4d: Mounted from library/nginx
- 2edcec3590a4: Mounted from library/nginx
- 1.0: digest: sha256:fe4d4e8f68cace0f19cc7d070c84030487b31a585cdcd5969afe6f8848f80aca size: 1782
可以看到已经推送到镜像仓库了:
