DevOps

Jenkins build pipelines and PHP Unit tests and what Docker can do for you

Some time ago I didn’t like Jenkins Pipelines at all. I preferred to concatenate Jenkins jobs by triggering one Job after the other in a job chain using the build triggers. Together with the Build Flow Plugin you get a good overview of the job chain. This workes like a charm and I like the approach. I know about the bugs and flaws of the Build Flow Plugin but I accept that. But then I updated my environment to Jenkins 2 and I came over the Pipelines again. I got curious and started reading about the Pipelines because I could use them instead of the Build Flow Plugin and use…

Puppet augeas and sudoers parameter lists

Today I had little problems with Puppet’s augeas. I tried hard to find some documentation helping me out but did not find anything suitable. So I think I’m not the only one facing that problem so I want to share what I did. I want to change the /etc/sudoers file on Linux system with Puppet. What I want to do is negate the requiretty default and add SSH_AUTH_SOCK to the env_keep list. My first problem was the requitetty setting. I tried a lot until I got a working solution. The problem was the value needed in the Puppet augeas set statement. I developed the following solution: augeas { „sudoers“: context…

Java Security and Entropy

A few days ago I had a strange problem with an Oracle database together with the current 1.7 version o fOpen JDK. The problems occurred on a Jenkins build slave running on CentOS 6.6. The connection to the Oracle database was done with Oracle’s JDBC driver. The script doing the database stuff runs without error. But not every time. So I got the error message „failing randomly“. Failing randomly, what the heck … I started to create a small shell script which executes the script in question several times. The first run of the script always succeeds. The second run needs a lot more time to connect to the database…

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