Docker image from existing Rails / Unicorn / MySQL application
I am new to Docker and am experimenting building an image from an existing Rails / Unicorn / MySQL application. My files are below and the image is successfully generated, but I don't understand if everything really works fine as I cannot access the traditional Unicorn localhost url or boot2docker IP.
So my question is, how can I access the Unicorn server locally on OSX using the Docker image?
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
PS Docker exit
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 press localhost:8080
or http://192.168.59.103:8080/
, I getGateway 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've also tried boot2docker workarounds from here to no avail: https://github.com/boot2docker/boot2docker/blob/master/doc/WORKAROUNDS.md
Any guidance is greatly appreciated.
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You must use the eth1 address of your boot2docker vm.
Run from 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
- the address you want to use from your Mac. The port depends on which port you are sending. 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, the sshd server is running in your case, it will be your unicorn, which will be the port 32777
. So I think you are connecting to the correct address, but instead you need to connect to 32777
.
Hope it helps.
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