How to check the configuration of an app deployed on docker container

How can I check and update configuration of an application deployed in docker container? There is a docker image with an application deployed which points to a server and the problem is that the server IP is hard coded somewhere in the application and I need to change that, later I’ll pass that server IP […]

docker reverse-proxy doesnt work when change network (by –net)

docker version: 17.05.0-ce I have some containers running by hand using docker run … but recently for new project I create docker-compose.yml file based on this tutorial. However when i run following commands in my hosting: docker network create –driver bridge reverse-proxy docker-compose up and docker run -d –name nginx-reverse-proxy –net reverse-proxy -p 80:80 -v […]

Cannot connect docker swarm agent from outside internet

I try to provide Python Flask (port 5000) on Docker swarm by Azure Container Service. The deployed agent can be connected by curl from swarm management but cannot connect from outside of internet. The port 5000 is well defined in agent Azure load balancer. What else can I inspect more? I launch flask by […]

Logging to logstash from python

I am having some troubles logging to logstash from python. I am using a docker image from sebp/elk ( and python-logstash ( as a logging handler The docker image exposes port 5044 for the Beats interface ( Whenever I try to log to this port nothing happens… Is there some other port I should be […]

Alternatives to debug a docker + gunicorn app in production

I’m kinda curious of what alternatives people are using to debug applications that are running live with either uwsgi or gunicorn in a Docker container. The scenario would be, a bug that cannot be reproduced locally, and it seems to be happening only in production / staging. From what I’ve seen, some people seem to […]

How to install docker without cgroup

I have custom complied debian 7 wheezy on which I want to run docker. I don’t want to set any resource limit on processes and it is the requirement of my product. Can we install docker without cgroup to avoid resource limitation.

Docker Container Networking with Docker-in-Docker

I would like to network with a child docker container from a parent docker container, with a docker-in-docker setup. Let’s say I’m trying to connect to a simple Apache httpd server. When I run the httpd container on my host machine, everything works fine: asnyder:~$ docker run -d -p 8080:80 httpd:alpine asnyder:~$ curl localhost:8080 <html><body><h1>It […]

Unable to run java Program. Error inside docker

I am just a beginner to Docker and was exploring the various features.i have successfully installed java inside docker **OS version**:Windows Server 2016 PS C:\testing> docker version Client: Version: 17.03.1-ee-3 API version: 1.27 Go version: go1.7.5 Git commit: 3fcee33 Built: Thu Mar 30 19:31:22 2017 OS/Arch: windows/amd64 Server: Version: 17.03.1-ee-3 API version: 1.27 (minimum version […]

docker push to private registry: how not to specify a port

When deploy a private registry per this docker instructions, I have to specify the port in CLI to push the image like this: For http(80), the command is: docker push For https(443), the command has to be: docker push If I mapped the port to 5000, the command is: docker push The […]

Jenkins Job Builder not creating publishers

hope someone can help – i’m having a nightmare with JJB. If I comment out the publishers from my JJB yaml script it builds the tasks fine – as soon as I add in any publishers to any of the tasks in the project I get the following error: Duplicate entry point found for component […]

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