# Docker network URL cannot be resolve inside Katalon Docker Container (Docker to Docker) **URL:** \ **Category:** Test Management\ **Tags:** runtime-engine, katalon-studio\ **Created:** [September 17, 2020, 7:53am UTC](https://forum.katalon.com/t/docker-network-url-cannot-be-resolve-inside-katalon-docker-container-docker-to-docker/47445 "2020-09-17T07:53:10Z")\ **Posts on this page:** 10\ **Page:** 1
**Author:** ![anuradha](https://dub1.discourse-cdn.com/katalon/user_avatar/forum.katalon.com/anuradha/32/16103_2.png) [@anuradha](https://forum.katalon.com/u/anuradha)\ **Post date:** [September 17, 2020, 7:53am UTC](https://forum.katalon.com/t/docker-network-url-cannot-be-resolve-inside-katalon-docker-container-docker-to-docker/47445/1 "2020-09-17T07:53:10Z")
Issue: When using an URL set by System.getenv inside a docker container. **The url is not resolved by KATALON**. But when doing: `ping container_name` inside the container, it works. How to reproduce: - Create a server app listening on port 80 inside docker. - Create a katalon project inside docker - create a docker network - Run server app container (listening on port 80) - connect server app container to docker network - connect katalon container to docker network - Run katalon container How to check if url is working inside katalon container: - ping server\_app (it resolves) But when using http://server\_app as URL inside katalon container to run tests, it doesn’t work at all: `2020-09-17 07:29:00.792 ERROR c.k.k.core.keyword.internal.KeywordMain - ❌ Unable to click on object '`… Notes: The tests works on host URL. Ex. Lets say I exposed the server\_app container on: localhost:3000, Then i run the katalon project outside docker (directly on host) it works. ---
**Author:** ![anuradha](https://dub1.discourse-cdn.com/katalon/user_avatar/forum.katalon.com/anuradha/32/16103_2.png) [@anuradha](https://forum.katalon.com/u/anuradha)\ **Post date:** [September 23, 2020, 5:11am UTC](https://forum.katalon.com/t/docker-network-url-cannot-be-resolve-inside-katalon-docker-container-docker-to-docker/47445/3 "2020-09-23T05:11:48Z")
Hello, Have anyone tried to reproduce my issue? I think this is a katalon issue as the url is resolving but its not reachable in katalon container. Thanks ---
**Author:** ![nvdoanh](https://dub1.discourse-cdn.com/katalon/user_avatar/forum.katalon.com/nvdoanh/32/16103_2.png) [@nvdoanh](https://forum.katalon.com/u/nvdoanh)\ **Post date:** [November 9, 2020, 2:16pm UTC](https://forum.katalon.com/t/docker-network-url-cannot-be-resolve-inside-katalon-docker-container-docker-to-docker/47445/4 "2020-11-09T14:16:15Z")
I faced the same issue. Any solution for this? Thanks, Doanh ---
**Author:** ![anon46315158](https://avatars.discourse-cdn.com/v4/letter/a/73ab20/32.png) [@anon46315158](https://forum.katalon.com/u/anon46315158)\ **Post date:** [November 9, 2020, 2:21pm UTC](https://forum.katalon.com/t/docker-network-url-cannot-be-resolve-inside-katalon-docker-container-docker-to-docker/47445/5 "2020-11-09T14:21:00Z")
> [@nvdoanh](#): > > I faced the same issue. Any solution for this? without additional context nobody will ever attempt to reproduce it. in your mind you may have the same problem, in my mind not. ---
**Author:** ![nvdoanh](https://dub1.discourse-cdn.com/katalon/user_avatar/forum.katalon.com/nvdoanh/32/16103_2.png) [@nvdoanh](https://forum.katalon.com/u/nvdoanh)\ **Post date:** [November 10, 2020, 2:14am UTC](https://forum.katalon.com/t/docker-network-url-cannot-be-resolve-inside-katalon-docker-container-docker-to-docker/47445/6 "2020-11-10T02:14:02Z")
Thanks for your comment, Bionel. So what’s your advice in this case 🙂 ---
**Author:** ![anon46315158](https://avatars.discourse-cdn.com/v4/letter/a/73ab20/32.png) [@anon46315158](https://forum.katalon.com/u/anon46315158)\ **Post date:** [November 10, 2020, 9:24am UTC](https://forum.katalon.com/t/docker-network-url-cannot-be-resolve-inside-katalon-docker-container-docker-to-docker/47445/7 "2020-11-10T09:24:59Z")
> [@anuradha](#): > > Create a server app listening on port 80 inside docker. we don’t know what content is serving this custom app in addition to that, there are some inconsistencies. from the error log: > [@anuradha](#): > > `2020-09-17 07:29:00.792 ERROR c.k.k.core.keyword.internal.KeywordMain - ❌ Unable to click on object '` … looks like the problem is in fact ‘unable to click on object’ (which can have various causes), not the url not being resolved so … no, i don’t think somebody can reproduce it at this moment, there is not enough info. ```auto root@aff9afbc64e7:/# ping server_app ``` have you tried `curl http://server_app` too? @nvdoanh are you sure you are facing **exactly** the same issue? please describe your use case ---
**Author:** ![duyluong](https://dub1.discourse-cdn.com/katalon/user_avatar/forum.katalon.com/duyluong/32/1116_2.png) [@duyluong](https://forum.katalon.com/u/duyluong)\ **Post date:** [November 11, 2020, 4:05am UTC](https://forum.katalon.com/t/docker-network-url-cannot-be-resolve-inside-katalon-docker-container-docker-to-docker/47445/8 "2020-11-11T04:05:59Z")
Hi @anuradha, @nvdoanh, We can understand this problem but it’s hard for us to setup a test environment without a sample Docker file. Can you share a sample project for better evaluation? ---
**Author:** ![nvdoanh](https://dub1.discourse-cdn.com/katalon/user_avatar/forum.katalon.com/nvdoanh/32/16103_2.png) [@nvdoanh](https://forum.katalon.com/u/nvdoanh)\ **Post date:** [November 13, 2020, 4:05am UTC](https://forum.katalon.com/t/docker-network-url-cannot-be-resolve-inside-katalon-docker-container-docker-to-docker/47445/9 "2020-11-13T04:05:15Z")
I will give more details once I have time. From your site, you just set up simple topology like the post and confirm it works or not. Thanks, Doanh ---
**Author:** ![anuradha](https://dub1.discourse-cdn.com/katalon/user_avatar/forum.katalon.com/anuradha/32/16103_2.png) [@anuradha](https://forum.katalon.com/u/anuradha)\ **Post date:** [November 13, 2020, 12:54pm UTC](https://forum.katalon.com/t/docker-network-url-cannot-be-resolve-inside-katalon-docker-container-docker-to-docker/47445/10 "2020-11-13T12:54:27Z")
Hi @anon46315158 @duyluong i have got a sample project created today. Kindly do share an email address so that i can share the project with you so that you can check it. [if its okay with you guys] The error i am having is as below: ![image](https://europe1.discourse-cdn.com/katalon/original/2X/8/88259af70b398ceb6fb030a5f9b83783fe57231b.png) even if i can ping to the url successfully ![image](https://europe1.discourse-cdn.com/katalon/original/2X/7/7985704b731ea917e0285fe054c6fad4dfcb3132.png) Thanks ---
**Author:** ![anon46315158](https://avatars.discourse-cdn.com/v4/letter/a/73ab20/32.png) [@anon46315158](https://forum.katalon.com/u/anon46315158)\ **Post date:** [November 13, 2020, 5:11pm UTC](https://forum.katalon.com/t/docker-network-url-cannot-be-resolve-inside-katalon-docker-container-docker-to-docker/47445/11 "2020-11-13T17:11:14Z")
@anuradha @nvdoanh Hi again. Unfortunately i don’t have a runtime license so i cannot fully test your workflow. Therefore sending any data to me is useless. However, at a certain point in time i asked if somebody used curl from the katalon container to check the comunication with the webserver container, instead of just pinging. This is not answered. So i will just ignore any other ‘details’ offered until this info is provided, just because my advices are ignored. Will let this issue into the katalon staff team hands. Regards