使用Docker安装Nginx并配置端口转发问题及解决方法
使用docker安装并运行nginx命令:
docker run --name=nginx -p 80:80 -d docker.io/nginx
使用命令:
docker exec -it nginx /bin/bash 进入容器可查看到几个重要的文件
配置文件:nginx.conf 在 /etc/nginx/nginx.conf
日志文件: /var/log/nginx/access.log /var/log/nginx/error.log
使用cat命令打开nginx.conf
root@dc048fc59765:/var/log/nginx# cat /etc/nginx/nginx.conf usernginx; worker_processes1; error_log/var/log/nginx/error.log warn; pid/var/run/nginx.pid; events {worker_connections1024; } http {include/etc/nginx/mime.types; default_typeapplication/octet-stream; log_formatmain'$remote_addr - $remote_user [$time_local] "$request" ''$status $body_bytes_sent "$http_referer" ''"$http_user_agent" "$http_x_forwarded_for"'; access_log/var/log/nginx/access.logmain; sendfileon; #tcp_nopushon; keepalive_timeout65; #gzipon; include /etc/nginx/conf.d/*.conf; } root@dc048fc59765:/var/log/nginx#
发现第32行,配置了一个子配置文件,进入conf.d发现有一个default.conf文件
打开default.conf文件:
root@dc048fc59765:/etc/nginx/conf.d# cat default.conf server {listen80; listen[::]:80; server_namelocalhost; #charset koi8-r; #access_log/var/log/nginx/host.access.logmain; location / {root/usr/share/nginx/html; indexindex.html index.htm; } #error_page404/404.html; # redirect server error pages to the static page /50x.html#error_page500 502 503 504/50x.html; location = /50x.html {# proxy the PHP scripts to Apache listening on 127.0.0.1:80#location ~ \.php$ {#proxy_passhttp://127.0.0.1; #}# pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000#roothtml; #fastcgi_pass127.0.0.1:9000; #fastcgi_indexindex.php; #fastcgi_paramSCRIPT_FILENAME/scripts$fastcgi_script_name; #includefastcgi_params; # deny access to .htaccess files, if Apache's document root# concurs with nginx's one#location ~ /\.ht {#denyall; } root@dc048fc59765:/etc/nginx/conf.d#
在浏览器中输入:http://192.168.11.241
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从default.conf中11行可以看出,index页面在/usr/share/nginx/html
现在,我们配置一下容器卷:
docker rm -f nginx 删除一下之前的容器
再次执行比较完整的命令:
docker run \--restart=always \--name nginx \-d -p 80:80 \-v /data/nginx/html:/usr/share/nginx/html \-v /data/nginx/nginx.conf:/etc/nginx/nginx.conf \-v /data/nginx/conf.d:/etc/nginx/conf.d \-v /data/nginx/log:/var/log/nginx \nginx
这里有几个注意事项:
(1)第一个“-v”,是项目位置,把html代码放到挂载到的目录下即可;
(2)第二个“-v”,是挂载的主配置文件"nginx.conf",注意"nginx.conf"文件内有一行"include /etc/nginx/conf.d/*.conf; ",
这个include指向了子配置文件的路径,此处注意include后所跟的路径一定不要出错。
(3)第三个“-v”,把docker内子配置文件的路径也挂载了出来,注意要与(2)中include指向路径一致
(4)重点强调一下,nginx.conf是挂载了一个文件(docker是不推荐这样用的),conf.d挂载的是一个目录
我们先启动一下,可以发现是有问题的,因为配置文件还没有。
[root@zuul-server data]# docker run--name nginx-d -p 80:80-v /data/nginx/html:/usr/share/nginx/html-v /data/nginx/nginx.conf:/etc/nginx/nginx.conf-v /data/nginx/conf.d:/etc/nginx/conf.d-v /data/nginx/log:/var/log/nginxnginx很明显,报错了,容器也没有启动成功,怎么解决了?
c8d49810b4afd4b6661beb942f0f19a67cf64f9798af9d2eb8a2aa242b2af434
docker: Error response from daemon: OCI runtime create failed: container_linux.go:349: starting container process caused "process_linux.go:449: container init caused \"rootfs_linux.go:58: mounting \\\"/data/nginx/nginx.conf\\\" to rootfs \\\"/var/lib/docker/overlay2/ee154ee69264707a542409b514cfff950b31cefa4dcd4e66c3635d0aa94f5058/merged\\\" at \\\"/var/lib/docker/overlay2/ee154ee69264707a542409b514cfff950b31cefa4dcd4e66c3635d0aa94f5058/merged/etc/nginx/nginx.conf\\\" caused \\\"not a directory\\\"\"": unknown: Are you trying to mount a directory onto a file (or vice-versa)? Check if the specified host path exists and is the expected type.
解决办法: 1 进入/data/nginx目录,
2 删除nginx.conf文件夹rm-rf nginx.conf
3 新建nginx.conf文件touch nginx.conf
4 然后把之前cat /etc/nginx/nginx.conf的内容放入到nginx.conf
5 同理,cd /data/nginx/conf.d ,touch default.conf,把之前 cat /etc/nginx/conf.d/default.conf中的内容放入到新建的default.conf中。
最后 docker restart nginx 搞定。
需要配置一个端口转发功能,业务需求是:以http://192.168.11/241/mp开头的请求需要重定向到http://192.168.11.241:20001/mp上,
刚开始把 proxy_pass 对应的路径写成了 http://127.0.0.1:20001/;导致报404错误,原因很简单,nginx运作在容器里面,肯定找不到http://127.0.0.1:20001/,浪费了我一点点时间,一时没转过弯来。
server {listen80; server_name localhost; #charset koi8-r; #access_log /var/log/nginx/log/host.access.log main; location / {#root /usr/nginx/dacheng-wechat-web; #root /usr/nginx/html; root /usr/share/nginx/html; index index.html index.htm; autoindex on; # try_files $uri /index/index/page.html; # try_files $uri /index/map/page.html; } location /mp {proxy_pass http://192.168.11.241:20001/; }#error_page 404/404.html; # redirect server error pages to the static page /50x.html#error_page 500 502 503 504 /50x.html; location = /50x.html {root /usr/share/nginx/html; }# proxy the PHP scripts to Apache listening on 127.0.0.1:80##location ~ \.php$ {# proxy_pass http://127.0.0.1; #}# pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000##location ~ \.php$ { # roothtml; # fastcgi_pass 127.0.0.1:9000; # fastcgi_index index.php; # fastcgi_param SCRIPT_FILENAME /scripts$fastcgi_script_name; # includefastcgi_params; #}# deny access to .htaccess files, if Apache's document root# concurs with nginx's one##location ~ /\.ht {# deny all; #} }
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