Pavel Polivka Pavel Polivka - 3 months ago 66
Groovy Question

Jenkins Pipeline loop ends unexpectedly

I am trying to verify that all my web applications in one tomcat are running after execution of Jenkins pipeline.

I am verifing more than one url so I want to do that in for loop.
It ends on first url in collection.

Here is my code

@NonCPS
def verifyServices(list) {
echo "Services: "+list.size()
def result = true
for(int i = 0; i < list.size(); i++){
if(result) {
result = testUrl(list[i])
}
}
return result
}

def verify = []
verify.add("http://example.com:8082")
verify.add("http://example.com:8082/rest/version")
verify.add("http://example.com:8082/mobile/version")
verifyServices(verify)


And testUrl function

def call(urlString) {
echo "Testing ${urlString}"
def url = new URL(urlString)
def HttpURLConnection connection = url.openConnection()
connection.setRequestMethod("GET")
connection.setDoInput(true)

try {
connection.connect()
def code = connection.getResponseCode()
echo "Response code ${code}"
return code == 200
} finally {
connection.disconnect()
}
}


Here is my log

Proceeding
[Pipeline] echo
Services: 3
[Pipeline] echo
Testing http://example.com:8082
[Pipeline] echo
Response code 200
[Pipeline] }
[Pipeline] // node
[Pipeline] End of Pipeline


When I remove call to
testUrl
function in
verifyServices
it iterates over all of them.

Am I doing something wrong? Or for loops are just broken?

Answer

Somehow the @NonCPS annotation is messing with your methods calls. Remove it and you will be just fine. Plus I don't think you need it in the first place, your code doesn't seem to introduce any serializable issue @NonCPS annotation would fix...

You can read more on CPS technical design or tutorial recommendations on how to serializable variables.