Jenkins pipeline sh does not seem to respect pipe in shell command
If your environment allows it, I've found a simple solution to this problem to be to place your script containing pipes into a file, and then run that with sh, like so:
script.sh:
#!/bin/sh
kubectl exec --container bla -i $(kubectl get pods | awk '/foo-/{ print $1 }') -- php /code/dostuff
Jenkinsfile:
stage('Run script with pipes') {
steps {
sh "./script.sh"
}
}
I know this kind of late answer, but whoever you who needs the solution without eval you can use /bin/bash -c "script"
to make pipe works
script {
POM_VERSION = sh(script: "/bin/bash -c 'sed -n \'/<version>/,/<version/p\' pom.xml | head -1 | sed \'s/[[:blank:]]*<\/*version>//g\'\''", returnStdout: true)
echo "${POM_VERSION}"
}
The only problem with this method is hellish escape
yet this way the subshell of pipe will be handled by our boy /bin/bash -c
I finally put some thought into it and realized that pipe subshells are probably causing the issue. I know some of the evils of eval but I ended up wrappping this in an eval:
script {
def ver_script = $/eval "sed -n '/<version>/,/<version/p' pom.xml | head -1 | sed 's/[[:blank:]]*<\/*version>//g'"/$
echo "${ver_script}"
POM_VERSION = sh(script: "${ver_script}", returnStdout: true)
echo "${POM_VERSION}"
}