Docker for windows development environment setup

I am trying to figure out how to setup a development environment for developing multiple apis locally. My development environment is as follows: Host Machine: SQL Server 2016 Express Installed on the host listening at,1433 which I can connect to locally from the host and from other PCs on the network. Docker for […]

Docker and MySQL can't connect

I can’t for the life of me figure this out. I feel like I’m really close, but im just not quite there yet. Here’s my Dockerfile: FROM ubuntu:14.04 MAINTAINER Oscar Godson RUN apt-get update RUN apt-get install -y nodejs-legacy RUN apt-get install -y npm RUN apt-get install -y mysql-server RUN apt-get install -y mysql-client COPY […]

Access host docker-machine from within container

I have an image that I’m using to run my CI/CD builds (using GitLab CE). I’d like to deploy my app doing something like this from within the container: eval “$(docker-machine env manager)” sudo docker stack deploy –compose-file docker-stack.yml web However, I’d like the docker-machine to access machines defined on the host system since the […]

Typo3 Neos performance for css and js

I installed Typo3 Neos, Apache and MySQL in a Docker container. The initial page loads in about a second, which seems okay to me. But most css-, javascript- and font-files take extremely long to load, some over 20 seconds waiting time. A chromium network timeline screenshot can be found on All files except the […]

What is Docker storage driver

I am learning Docker storage and I am not clear about Docker storage drivers. What is docker‘s storage driver in layman’s terms? How is it different than Backing Filesystem that docker info command shows? If someone wants to write his own storage driver? How to do that?

docker metrics reside in different location for different environment or versions

I need to gather docker metrics like cpu, memory and I/O, but I noticed that on my Ubuntu 14.04 the location of the metrics are different from the location in my CoreOs system: For example: The docker cpu metrics in ubuntu are located under: /sys/fs/cgroup/cpuacct/docker/<dockerLongId>/cpuacct.stat The docker cpu metrics for CoreOs are located under: /sys/fs/cgroup/cpuacct/system.slice/docker-<dockerLongId>.scope/cpuacct.stat […]

Why hadoop services exits immediately?

I am referring for installing cdh4 on ubuntu:precise system; RUN for x in `cd /etc/init.d ; ls hadoop-hdfs-*` ; do service $x start ; /etc/init.d/$x status; jps; done Output hadoop namenode starting hadoop namenode is running 7 jps 43 namenode hadoop datanode starting hadoop datanode is running 7 jps 43 namenode 89 datanode hadoop […]

how do I expose an http traffic of a docker container to the outside world

I have a docker container, which serves some http traffic on, which is internal to that specific container. How do I expose this traffic to the outside world, so I could hit ?

Cannot upload play application to dokku, gzip: stdin: unexpected end of file

Cannot deploy play application to dokku instance. The output of git push is as follow: Writing objects: 100% (500/500), 269.54 MiB | 114.00 KiB/s, done. Total 500 (delta 217), reused 484 (delta 209) —–> Cleaning up … —–> Building myapplcation … —–> Adding BUILD_ENV to build environment… —–> Play 2.x – Scala app detected remote: […]

Boot2Docker Hazelcast and ulimit

I try to create a development environment for the software we develop. For this I use Docker and Boot2docker because I work on mac (Yosemite). We use Hazelcast in the product, but I am having a problem when I “dockerize” it. At the first connection to Hazelcast here’s what happens: INFOS: []:5601 [akio] [3.2.2] Hazelcast […]

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