Creating Swap File in CoreOS

     If you are using CoreOS, sometimes such situations arise when one or more docker containers do not have enough RAM. Especially if you are using vps with minimal configuration. In this case instead of changing your vps it's appropriate to use swap.
 

Configuring the TeamCity Server on Ubuntu over SSH

    

 

     Nowadays, application development is usually done at a fast pace when many developers are working on the same part of code. Sometimes this becomes a real challenge if there’s no permanent control over consistency of the project source. Continuous Integration is a well-known life saver for distributed development environments with TeamCity being one of the best and easy-to-use instruments utilizing it. This article describes the process of installing and configuring the TeamCity CI server on Ubuntu 14.10. 

Stop / Remove All Docker Containers

Sometimes it is necessary to remove or stop all containers running on the machine. Here is the command for this task:

 docker stop $(docker ps -a -q)  
 docker rm $(docker ps -a -q)