Common

Running in a cloud always means some changes in mind in comarison to a static datacenter environment. Especially if you think about security and m2m trusts. Amazon AWS has some great features like IAM Roles to handle this in a cloud-native fashion, unfortunately only available for AWS services. In my opinion it is a damn […]

AWS CloudWatch Logs
1. October 2014

AWS recently released it’s barely new CloudWatch feature for log analysis in eu-west-1 and us-west-1. It was started in us-east-1 first and got a rollout over to ireland yesterday. After installation and configuration of a small daemon called awslogs, instance logs appear in the Webinterface quite fast. They can get divided into log-groups and streams. The interface is quite […]

Common
Install Ruby Gem in Users Homedir
11. August 2014

Sometimes it seems to be nice to install ruby gems only in users home instead of system-wide, even if this is configured to be in the rubyrc config. Check your configuration: gem env Install a gem in user home: gem install –user-install gem_name

Common

If you need to install a specified version of a python module, you can use the following command to determine which versions are available (with ipython as example): pip install –no-deps –no-install ipython -v Installing is very simple. Just do the following: pip install ipython==0.13