6:50 a.m.
Hi,
Has anyone managed to get undertow working with docker (on CoreOS)?
I have a very basic jar that starts up an undertow server on (localhost at port 80) and
has a single HttpHandler at the endpoint ‘/hello’. I’ve tested the jar locally and the
endpoint works fine.
I have a docker file along the lines of:
---------------
FROM dockerfile/java:oracle-java8
## wget the app from a server
CMD java -jar my-app.jar
EXPOSE 80
---------------
I then run the container (after building it from the above docker file) as follows:
docker run -d -p 80:80 my-app
(Yes I made sure the server did start and is running before the following:)
I see that the iptables are as follows (which is identical to what dockerfiles/nginx
produces):
---------------
Chain INPUT (policy ACCEPT)
target prot opt source destination
Chain FORWARD (policy ACCEPT)
target prot opt source destination
ACCEPT tcp -- anywhere 172.17.0.65 tcp dpt:http
ACCEPT all -- anywhere anywhere ctstate RELATED,ESTABLISHED
ACCEPT all -- anywhere anywhere
ACCEPT all -- anywhere anywhere
Chain OUTPUT (policy ACCEPT)
target prot opt source destination
---------------
Finally I try to curl at the ‘/hello’ endpoint but I just get a connection refused. I try
the curl request to localhost from within the same server and it doesn’t work. I also try
from a different computer using the public IP of the machine and it does’t work.
The dockerfile/nginx works perfect when I curl at it at port 80.
I’m stumped for ideas, please help!
Thanks,
Chris
6:55 a.m.
Your iptables do not contain 127.0.0.1 and ::1 as destination?
I would try it without a packet filter first.
Am 31.10.2014 12:51 schrieb "Chris Christo" <_c.c(a)mail.com>:
Hi,
Has anyone managed to get undertow working with docker (on CoreOS)?
I have a very basic jar that starts up an undertow server on (localhost at
port 80) and has a single HttpHandler at the endpoint ‘/hello’. I’ve tested
the jar locally and the endpoint works fine.
I have a docker file along the lines of:
---------------
FROM dockerfile/java:oracle-java8
## wget the app from a server
CMD java -jar my-app.jar
EXPOSE 80
---------------
I then run the container (after building it from the above docker file) as
follows:
docker run -d -p 80:80 my-app
(Yes I made sure the server did start and is running before the following:)
I see that the iptables are as follows (which is identical to what
dockerfiles/nginx produces):
---------------
Chain INPUT (policy ACCEPT)
target prot opt source destination
Chain FORWARD (policy ACCEPT)
target prot opt source destination
ACCEPT tcp -- anywhere 172.17.0.65 tcp dpt:http
ACCEPT all -- anywhere anywhere ctstate
RELATED,ESTABLISHED
ACCEPT all -- anywhere anywhere
ACCEPT all -- anywhere anywhere
Chain OUTPUT (policy ACCEPT)
target prot opt source destination
---------------
Finally I try to curl at the ‘/hello’ endpoint but I just get a connection
refused. I try the curl request to localhost from within the same server
and it doesn’t work. I also try from a different computer using the public
IP of the machine and it does’t work.
The dockerfile/nginx works perfect when I curl at it at port 80.
I’m stumped for ideas, please help!
Thanks,
Chris
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undertow-dev(a)lists.jboss.org
https://lists.jboss.org/mailman/listinfo/undertow-dev
7:44 a.m.
Hi, Chris.
localhost at port 80
Could you change localhost to 0.0.0.0(or youe Docker container IP Address)
at addHttpLIstner in your app?
On Fri, Oct 31, 2014 at 8:55 PM, Bernd <ecki(a)zusammenkunft.net> wrote:
Your iptables do not contain 127.0.0.1 and ::1 as destination?
I would try it without a packet filter first.
Am 31.10.2014 12:51 schrieb "Chris Christo" <_c.c(a)mail.com>:
Hi,
>
> Has anyone managed to get undertow working with docker (on CoreOS)?
>
> I have a very basic jar that starts up an undertow server on (localhost
> at port 80) and has a single HttpHandler at the endpoint ‘/hello’. I’ve
> tested the jar locally and the endpoint works fine.
>
> I have a docker file along the lines of:
>
> ---------------
> FROM dockerfile/java:oracle-java8
>
> ## wget the app from a server
>
> CMD java -jar my-app.jar
>
> EXPOSE 80
> ---------------
>
> I then run the container (after building it from the above docker file)
> as follows:
>
> docker run -d -p 80:80 my-app
>
> (Yes I made sure the server did start and is running before the
> following:)
>
> I see that the iptables are as follows (which is identical to what
> dockerfiles/nginx produces):
>
> ---------------
> Chain INPUT (policy ACCEPT)
> target prot opt source destination
>
> Chain FORWARD (policy ACCEPT)
> target prot opt source destination
> ACCEPT tcp -- anywhere 172.17.0.65 tcp dpt:http
> ACCEPT all -- anywhere anywhere ctstate
> RELATED,ESTABLISHED
> ACCEPT all -- anywhere anywhere
> ACCEPT all -- anywhere anywhere
>
> Chain OUTPUT (policy ACCEPT)
> target prot opt source destination
> ---------------
>
> Finally I try to curl at the ‘/hello’ endpoint but I just get a
> connection refused. I try the curl request to localhost from within the
> same server and it doesn’t work. I also try from a different computer using
> the public IP of the machine and it does’t work.
>
> The dockerfile/nginx works perfect when I curl at it at port 80.
>
> I’m stumped for ideas, please help!
>
> Thanks,
>
> Chris
>
>
>
> _______________________________________________
> undertow-dev mailing list
> undertow-dev(a)lists.jboss.org
> https://lists.jboss.org/mailman/listinfo/undertow-dev
>
_______________________________________________
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undertow-dev(a)lists.jboss.org
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7:51 a.m.
Hi yeah I managed to get it to work. I set undertow server as 172.17.0.65 and it worked.
To my understanding, this IP is something docker comes up with and is an internal IP
(it's different every time you run a docker container). The external IP is something
completely different.
So in summary you must set the host server for undertow as the Internal IP in the Iptables
created by docker.
On 31 Oct 2014, at 19:55, Bernd <ecki(a)zusammenkunft.net>
wrote:
Your iptables do not contain 127.0.0.1 and ::1 as destination?
I would try it without a packet filter first.
Am 31.10.2014 12:51 schrieb "Chris Christo" <_c.c(a)mail.com>:
> Hi,
>
> Has anyone managed to get undertow working with docker (on CoreOS)?
>
> I have a very basic jar that starts up an undertow server on (localhost at port 80)
and has a single HttpHandler at the endpoint ‘/hello’. I’ve tested the jar locally and the
endpoint works fine.
>
> I have a docker file along the lines of:
>
> ---------------
> FROM dockerfile/java:oracle-java8
>
> ## wget the app from a server
>
> CMD java -jar my-app.jar
>
> EXPOSE 80
> ---------------
>
> I then run the container (after building it from the above docker file) as follows:
>
> docker run -d -p 80:80 my-app
>
> (Yes I made sure the server did start and is running before the following:)
>
> I see that the iptables are as follows (which is identical to what dockerfiles/nginx
produces):
>
> ---------------
> Chain INPUT (policy ACCEPT)
> target prot opt source destination
>
> Chain FORWARD (policy ACCEPT)
> target prot opt source destination
> ACCEPT tcp -- anywhere 172.17.0.65 tcp dpt:http
> ACCEPT all -- anywhere anywhere ctstate
RELATED,ESTABLISHED
> ACCEPT all -- anywhere anywhere
> ACCEPT all -- anywhere anywhere
>
> Chain OUTPUT (policy ACCEPT)
> target prot opt source destination
> ---------------
>
> Finally I try to curl at the ‘/hello’ endpoint but I just get a connection refused. I
try the curl request to localhost from within the same server and it doesn’t work. I also
try from a different computer using the public IP of the machine and it does’t work.
>
> The dockerfile/nginx works perfect when I curl at it at port 80.
>
> I’m stumped for ideas, please help!
>
> Thanks,
>
> Chris
>
>
>
> _______________________________________________
> undertow-dev mailing list
> undertow-dev(a)lists.jboss.org
> https://lists.jboss.org/mailman/listinfo/undertow-dev
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