Potential fix for JENKINS-63628 and JENKINS-57452 #228
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Following the linked issues, we are looking for a solution to capture only docker container Id after executing 'docker run' command. In the linked issues (for JENKINS-57452 ,please look at the Comments) you can see that sometimes, additional messages written on the output stream of 'docker run' command are captured in addition to container Id ,and this breaks further 'docker top' command and fails the build/stage.
We propose to use regex - [0-9,a-f]{64} ,to capture docker container Id and exclude additional messages.