Docker：Nginx和php5-fpm码头工人没有说话 [英] Docker: Nginx and php5-fpm dockers are not talking
问题描述
我的Dockerfiles如下：
Nginx ：
FROM debian
MAINTAINER fvhemert
RUN apt-get update&& apt-get install -y nginx&&&回声\\\
daemon关闭 >> /etc/nginx/nginx.conf
CMD [nginx]
EXPOSE 80
此容器构建并运行良好。我看到我的服务器ip上的默认Nginx页面。
Php5-fpm：
FROM debian
MAINTAINER fvhemert
RUN apt-get update&& apt-get install -y \
php5-fpm \
&&& sed's /; daemonize = yes / daemonize = no /'-i /etc/php5/fpm/php-fpm.conf
CMD [php5-fpm]
EXPOSE 9000
此容器也构建无问题，并在启动时持续运行。
我首先启动php5-fpm容器：
docker run -d - name php5-fpm freek / php5-fpm：1
然后我开始Nginx ,,链接到php5-fpm：
docker run -d -p 80:80 - link php5-fpm：phpserver --name nginx freek / nginx-php：1
链接似乎工作，在/ etc / hosts中有一个名为phpserver的条目。两个码头运行：
core @ dockertest〜$ docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
fd1a9ae0f1dd freek / nginx-php：4nginx38分钟前Up 38分钟0.0.0.0:80->80/tcp nginx
3bd12b3761b9 freek / php5-fpm：2php5-fpm38分钟前up 38分钟9000 / tcp php5-fpm
我已经调整了一些配置文件。对于Nginx容器，我编辑/ etc / nginx / sites-enabled / default并更改：
server {
＃听80 ##听ipv4;这行是默认的，隐含的
#listen [::]：80 default_server ipv6only = on; ##听ipv6
root / usr / share / nginx / www;
index index.html index.htm index.php;
（我添加了index.php）
进一步说：
location〜\.php $ {
fastcgi_split_path_info ^（。+ \。 PHP）（/.+）$;
＃＃注意：你应该有cgi.fix_pathinfo = 0;在php.ini
＃
＃＃单独使用php5-cgi：
fastcgi_pass phpserver：9000;
＃＃用php5-fpm：
＃fastcgi_pass unix：/var/run/php5-fpm.sock;
fastcgi_index index.php;
包含fastcgi_params;
}
在php5-fpm码头中我更改了/ etc / php5 / fpm / php .ini：
cgi.fix_pathinfo = 0
php5-fpm运行：
[2014年11月21日06:15： 29]注意：fpm正在运行，pid 1
[2014年11月21日06:15:29]注意：准备处理连接
我还将index.html更改为index.php，看起来像这样（/usr/share/nginx/www/index.php）：
< html>
< head>
< title>欢迎使用nginx！< / title>
< / head>
< body bgcolor =whitetext =black>
< center>< h1>欢迎使用nginx！< / h1>< / center>
<？php
phpinfo（）;
？>
< / body>
< / html>
我已经从Nginx码头处扫描了9000端口，它似乎是关闭的。当然不是一个好兆头：
root @ fd1a9ae0f1dd：/＃nmap -p 9000 phpserver
启动Nmap 6.00（http://nmap.org）在2014-11-21 06:49 UTC
phpserver的Nmap扫描报告（172.17.0.94）
主机已启动（0.00022秒延迟）。
端口状态服务
9000 / tcp closed cslistener
MAC地址：02：42：AC：11：00：5E（未知）
Nmap done：1 IP地址（1个主机）以0.13秒扫描
Nginx日志：
root @ fd1a9ae0f1dd：/＃vim /var/log/nginx/error.log
2014/11/20 14:43:46 [error ] 13＃0：* 1 connect（）failed（111：Connection refused）while connection to upstream，client：194.171.252.110，server：localhost，request：GET / HTTP / 1.1，upstream：fastcgi：//127.0 .0.1：9000，主机：128.199.60.95
2014/11/21 06:15:51 [错误] 9＃0：* 1连接（）连接（111：连接被拒绝）连接到上游，client：145.15.244.119，server：localhost，request：GET / HTTP / 1.0，上游：fastcgi：//172.17.0.94：9000，主机：128.199.60.95
我的问题是：究竟出了什么问题？我的猜测是，我在php配置文件中缺少一些设置。
编辑更多详细信息：
这是结果（从php5- fpm容器，apt-get install net-tools之后）：
root @ 3bd12b3761b9：/＃netstat -tapen
活动的互联网连接
（服务器和已建立）Proto Recv-Q Send-Q本地地址
外部地址状态用户Inode PID /程序名称
从Nginx容器内部：
root @ fd1a9ae0f1dd：/＃netstat - tapen
活动的Internet连接
（服务器和已建立）Proto Recv-Q Send-Q本地地址外部地址状态用户Inode PID /程序
name tcp 0 0 0.0。 0.0：80 0.0.0.0:*
LISTEN 0 1875387 -
EDIT2：
进步！
在php5-fpm con在文件中：
/etc/php5/fpm/pool.d/www.conf
我将某个套接字名称的listen参数更改为：
listen = 9000
现在，当我去我的网页时，我得到错误：
没有指定输入文件。
可能我在某处有拖尾/错误。我会更仔细地研究一下！
EDIT3：
所以我用上面的重建了码头他们正在说话。但是，我的网页告诉我：找不到文件。
我非常确定它与nginx对php-fpm的文档有关，但我不知道它应该如何。我使用默认值，使用始终工作的套接字方法。现在它不再工作了在/ etc / nginx / sites-enabled / default下的位置〜.php $ {？解决方案没有工作，就像你发现自己一样，nginx只将PHP文件的路径发送到PHP-FPM，而不是文件本身（这将是非常低效的）。解决方案是使用第三个仅数据的VOLUME容器托管文件，然后将其挂载到两个Docker实例上。
FROM debian
VOLUME / var / www
CMD ['true']
构建上述Docker文件并创建一个实例（称为例如：storage-www），然后运行nginx和PHP-FPM容器，选项如下：
- volume-from storage-www
您在同一物理服务器上运行两个容器。
但是，如果您将这种仅数据的容器放在联网的文件系统（如GlusterFS）上，您仍然可以使用不同的服务器，这是非常有效的，可以通过大规模网络分发。
希望有所帮助。
更新：
截至2015年，在容器之间建立持久链接的最佳方式是使用 docker-compose 。
I’d like to make a fully dockerized Drupal install. My first step is to get containers running with Nginx and php5-fpm, both Debian based. I’m on CoreOS alpha channel (using Digital Ocean.)
My Dockerfiles are the following:
Nginx:
FROM debian MAINTAINER fvhemert RUN apt-get update && apt-get install -y nginx && echo "\ndaemon off;" >> /etc/nginx/nginx.conf CMD ["nginx"] EXPOSE 80This container build and runs nicely. I see the default Nginx page on my server ip.
Php5-fpm:
FROM debian MAINTAINER fvhemert RUN apt-get update && apt-get install -y \ php5-fpm \ && sed 's/;daemonize = yes/daemonize = no/' -i /etc/php5/fpm/php-fpm.conf CMD ["php5-fpm"] EXPOSE 9000This container also builds with no problems and it keeps running when started.
I start the php5-fpm container first with:
docker run -d --name php5-fpm freek/php5-fpm:1Ad then I start Nginx,, linked to php5-fpm:
docker run -d -p 80:80 --link php5-fpm:phpserver --name nginx freek/nginx-php:1The linking seems to work, there is an entry in /etc/hosts with name phpserver. Both dockers run:
core@dockertest ~ $ docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES fd1a9ae0f1dd freek/nginx-php:4 "nginx" 38 minutes ago Up 38 minutes 0.0.0.0:80->80/tcp nginx 3bd12b3761b9 freek/php5-fpm:2 "php5-fpm" 38 minutes ago Up 38 minutes 9000/tcp php5-fpmI have adjusted some of the config files. For the Nginx container I edited /etc/nginx/sites-enabled/default and changed:
server { #listen 80; ## listen for ipv4; this line is default and implied #listen [::]:80 default_server ipv6only=on; ## listen for ipv6 root /usr/share/nginx/www; index index.html index.htm index.php;(I added the index.php)
And further on:
location ~ \.php$ { fastcgi_split_path_info ^(.+\.php)(/.+)$; # # NOTE: You should have "cgi.fix_pathinfo = 0;" in php.ini # # # With php5-cgi alone: fastcgi_pass phpserver:9000; # # With php5-fpm: # fastcgi_pass unix:/var/run/php5-fpm.sock; fastcgi_index index.php; include fastcgi_params; }In the php5-fpm docker I changed /etc/php5/fpm/php.ini:
cgi.fix_pathinfo=0php5-fpm runs:
[21-Nov-2014 06:15:29] NOTICE: fpm is running, pid 1 [21-Nov-2014 06:15:29] NOTICE: ready to handle connectionsI also changed index.html to index.php, it looks like this (/usr/share/nginx/www/index.php):
<html> <head> <title>Welcome to nginx!</title> </head> <body bgcolor="white" text="black"> <center><h1>Welcome to nginx!</h1></center> <?php phpinfo(); ?> </body> </html>I have scanned the 9000 port from the Nginx docker, it appears as closed. Not a good sign of course:
root@fd1a9ae0f1dd:/# nmap -p 9000 phpserver Starting Nmap 6.00 ( http://nmap.org ) at 2014-11-21 06:49 UTC Nmap scan report for phpserver (172.17.0.94) Host is up (0.00022s latency). PORT STATE SERVICE 9000/tcp closed cslistener MAC Address: 02:42:AC:11:00:5E (Unknown) Nmap done: 1 IP address (1 host up) scanned in 0.13 secondsThe Nginx logs:
root@fd1a9ae0f1dd:/# vim /var/log/nginx/error.log 2014/11/20 14:43:46 [error] 13#0: *1 connect() failed (111: Connection refused) while connecting to upstream, client: 194.171.252.110, server: localhost, request: "GET / HTTP/1.1", upstream: "fastcgi://127.0.0.1:9000", host: "128.199.60.95" 2014/11/21 06:15:51 [error] 9#0: *1 connect() failed (111: Connection refused) while connecting to upstream, client: 145.15.244.119, server: localhost, request: "GET / HTTP/1.0", upstream: "fastcgi://172.17.0.94:9000", host: "128.199.60.95"Yes, that goes wrong and I keep getting a 502 bad gateway error when browsing to my Nginx instance.
My question is: What exactly goes wrong? My guess is that I’m missing some setting in the php config files.
EDIT FOR MORE DETAILS: This is the result (from inside the php5-fpm container, after apt-get install net-tools):
root@3bd12b3761b9:/# netstat -tapen
Active Internet connections
(servers and established) Proto Recv-Q Send-Q Local Address
Foreign Address State User Inode PID/Program nameFrom inside the Nginx container:
root@fd1a9ae0f1dd:/# netstat -tapen
Active Internet connections
(servers and established) Proto Recv-Q Send-Q Local Address Foreign Address State User Inode PID/Program name tcp 0 0 0.0.0.0:80 0.0.0.0:*
LISTEN 0 1875387 -EDIT2: Progression!
In the php5-fpm container, in the file:
/etc/php5/fpm/pool.d/www.confI changed the listen argument from some socket name to:
listen = 9000Now when I go to my webpage I get the error: "No input file specified."
Probably I have trailing / wrong somewhere. I'll look into it more closely!
EDIT3:
So I have rebuild the dockers with the above mentioned alterations and it seems that they are talking. However, my webpage tells me: "file not found." I'm very sure it has to do with the document that nginx sents to php-fpm but I have no idea how it should look like. I used the defaults when using the socket method which always worked. Now it doesn't work anymore. What should be in /etc/nginx/sites-enabled/default under location ~ .php$ { ?
解决方案The reason it doesn't work is, as you have discovered yourself, that nginx only sends the path of the PHP file to PHP-FPM, not the file itself (which would be quite inefficient). The solution is to use a third, data-only VOLUME container to host the files, and then mount it on both docker instances.
FROM debian VOLUME /var/www CMD ['true']Build the above Dockerfile and create an instance (call it for example: storage-www), then run both the nginx and the PHP-FPM containers with the option:
--volumes-from storage-wwwThat will work if you run both containers on the same physical server. But you still could use different servers, if you put that data-only container on a networked file-system, such as GlusterFS, which is quite efficient and can be distributed over a large-scale network.
Hope that helps.
Update:
As of 2015, the best way to make persistent links between containers is to use docker-compose.
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