来自现有Rails / Unicorn / MySQL应用程序的Docker映像 [英] Docker image from existing Rails/Unicorn/MySQL app

问题描述

我是Docker的新手，并通过从现有的Rails / Unicorn / MySQL应用程序创建一个图像进行实验。我的文件在下面，图像成功创建，但是我不清楚事情是否正常工作，因为我无法访问传统的Unicorn本地主机URL或boot2docker IP。

所以我的问题是，如何在运行Docker映像的OSX上本地访问Unicorn服务器？

Dockerfile

 ＃Dockerfile 
 FROM seapy / rails-nginx-unicorn 
 
＃发布端口8080 
 EXPOSE 8080 
 
 CMD [bundle，exec，unicorn，-p，8080] 
  

Docker图像运行命令

docker run - -app --link test-mysql：mysql -p 8080 -d -e SECRET_KEY_BASE = test sample_rails_games_app

Docker PS输出

  docker ps 
 CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 
 cf9c45d6 2763 sample_rails_games_appbundle exec unicorn 17分钟前上传17分钟0.0.0.0:32777->8080/tcp games-app 
 93485cb7bcca mysql/entrypoint.sh mysq 6小时前Up 6小时3306 / tcp test-mysql 
  

如果我尝试点击 localhost：8080 或 http://192.168.59.103:8080/ 我收到一个网关超时：无法连接到远程主机

Docker Logs输出

  docker logs cf9c45d62763 
 I，[2015-07-30T22：44：44.941674＃1] INFO  - ：listen on addr = 0.0.0.0：8080 fd = 9 
 I，[2015-07-30T22 ：44：44.941927＃1] INFO  - ：worker = 0产卵... 
 I，[2015-07-30T22：44：44.944000＃1]信息 - ：主流程准备
 I， [2015-07-30T22：44：44.944836＃8] INFO  - ：worker = 0 spawned pid = 8 
 I，[2015-07-30T22：44：44.945103＃8] INFO  - ：刷新宝石列表
 I，[2015-07-30T22：44：46.72 9708＃8] INFO  - ：worker = 0 ready 
  

我也从这里尝试过boot2docker解决方法无效： https://github.com/boot2docker/boot2docker/blob /master/doc/WORKAROUNDS.md

非常感谢任何指导。

解决方案

您必须使用boot2docker vm的eth1地址。

从shell运行：

  boot2docker ssh 
  

然后

  ifconfig eth1 
 docker @ boot2docker：〜$ ifconfig eth1 
 eth1链接封装：以太网HWaddr 08:00:27 ：69：53：F6 
 inet addr：192.168.59.103播放：192.168.59.255掩码：255.255.255.0 
 inet6 addr：fe80 :: a00：27ff：fe69：53f6 / 64范围：链接
 UP BROADCAST RUNNING MULTICAST MTU：1500公制：1 
 RX包：170143错误：0丢失：0超支：0帧：0 
发送数据包：98176错误：0丢弃：0超支：0载体：0 
碰撞：0 txqueuelen：1000 
 RX字节：107722766（102.7 MiB ）TX字节：13713741（13.0 MiB）
 
 docker @ boot2docker：〜$ 
  

192.168.59.103 是您要从Mac使用的地址。端口取决于您正在转发的端口。例如在这种情况下：

  $ docker ps 
 CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 
 2e1d63d6928a f6ac7e4116f3/ usr / sbin / sshd -D  -  3小时前Up大约一个小时0.0.0.0:32771->22/tcp mad_jones 
 104f730aa7da f6ac7e4116f3/ usr / sbin / sshd -D  -  3小时前Up大约一小时0.0.0.0:32770->22/tcp reverent_almeida 
  

它是 32771 或 32770 。在这个例子中，这是一个sshd服务器在你的情况下运行，这将是你的独角兽，它将是端口 32777 所以我认为你正在连接到正确的地址，但是你需要连接至 32777 。

希望有帮助。

I am new to Docker and experimenting by creating an image from an existing Rails/Unicorn/MySQL app. My files are below and the image successfully creates but I'm unclear if things are actually working properly as I can't access the traditional Unicorn localhost URL, or the boot2docker IP.

So my question is, how do I access a Unicorn server locally on OSX with a Docker image running?

Dockerfile

# Dockerfile
FROM seapy/rails-nginx-unicorn

# Publish port 8080
EXPOSE 8080

CMD ["bundle", "exec","unicorn", "-p", "8080"]

Docker Image Run Command

docker run --name games-app --link test-mysql:mysql -p 8080 -d -e SECRET_KEY_BASE=test sample_rails_games_app

Docker PS Output

docker ps
CONTAINER ID        IMAGE                    COMMAND                CREATED             STATUS              PORTS                     NAMES
cf9c45d62763        sample_rails_games_app   "bundle exec unicorn   17 minutes ago      Up 17 minutes       0.0.0.0:32777->8080/tcp   games-app
93485cb7bcca        mysql                    "/entrypoint.sh mysq   6 hours ago         Up 6 hours          3306/tcp                  test-mysql

If I try to hit localhost:8080 or http://192.168.59.103:8080/ I am getting a Gateway Timeout: can't connect to remote host

Docker Logs Output

docker logs cf9c45d62763
I, [2015-07-30T22:44:44.941674 #1]  INFO -- : listening on addr=0.0.0.0:8080 fd=9
I, [2015-07-30T22:44:44.941927 #1]  INFO -- : worker=0 spawning...
I, [2015-07-30T22:44:44.944000 #1]  INFO -- : master process ready
I, [2015-07-30T22:44:44.944836 #8]  INFO -- : worker=0 spawned pid=8
I, [2015-07-30T22:44:44.945103 #8]  INFO -- : Refreshing Gem list
I, [2015-07-30T22:44:46.729708 #8]  INFO -- : worker=0 ready

I have also tried the boot2docker workarounds from here to no avail: https://github.com/boot2docker/boot2docker/blob/master/doc/WORKAROUNDS.md

Any guidance is greatly appreciated.

解决方案

You have to use the eth1 address of your boot2docker vm.

Run from a shell:

boot2docker ssh

and then

ifconfig eth1
docker@boot2docker:~$ ifconfig eth1
eth1      Link encap:Ethernet  HWaddr 08:00:27:69:53:F6
          inet addr:192.168.59.103  Bcast:192.168.59.255  Mask:255.255.255.0
          inet6 addr: fe80::a00:27ff:fe69:53f6/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:170143 errors:0 dropped:0 overruns:0 frame:0
          TX packets:98176 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:107722766 (102.7 MiB)  TX bytes:13713741 (13.0 MiB)

docker@boot2docker:~$

192.168.59.103 is the address you want to use from your mac. The port depends on what port your are forwarding. For example in this case:

$ docker ps
CONTAINER ID        IMAGE               COMMAND                CREATED              STATUS              PORTS                   NAMES
2e1d63d6928a        f6ac7e4116f3        "/usr/sbin/sshd -D -   3 hours ago         Up About an hour    0.0.0.0:32771->22/tcp   mad_jones
104f730aa7da        f6ac7e4116f3        "/usr/sbin/sshd -D -   3 hours ago         Up About an hour    0.0.0.0:32770->22/tcp   reverent_almeida

it's either 32771 or 32770. In this example it's an sshd server running by in your case it would be your unicorn which would be port 32777 So I think you are connecting to the right address but you need to connect to 32777 instead.

Hope it helps.

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