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During load-testing with Locustio , I found myself having spawned 10 Locust slaves on AWS. </p>
Unfortunately, Locustio does not have a web interface (or something equivalent) to centrally manage it’s slaves. <br />And the thing with the slaves is that each and every one of them must have the latest and updated code that is going to run on the master.<br />How is that possible? Oh well, with Jenkins CI installed in each slave.<br />So, I had to build the same code in 10 different AWS instances.<br />The first and immediately most productive solution is open 10 Chrome/Firefox tabs and go to the Jenkins urls. But as you can imagine any good engineer that gets bored easily ... well,is bored of the amount of clicks included.</p>
So , I sat down and crafted a small piece of code to build all of them at once.<br />As someone can see I didn’t used their IPs, but if someone wants to do it that way is pretty straightforward.</p>
def build_jenkins(j_user, j_pass, j_url, job_name):
from jenkins import Jenkins
# set the jenkins object
j = Jenkins(j_url, j_user, j_pass)
if j.job_exists(job_name) is True:
print("\n Build command sent to Jenkins: %s \n"%j_url)
print("Wait for the build to complete....")
last_b = j.get_job_info(job_name)['lastCompletedBuild']['number']
last_successful_b = j.get_job_info(job_name)['lastSuccessfulBuild']['number']
# print last_b , last_successful_b #for debugging
# print "Take extra build info from this:\n" , j.get_job_info(job_name) # for debugging
print "Checking last build ... "
print "Last build : %s" % last_b
print "Last successful build : %s" % last_successful_b, "\n"
if last_b == last_successful_b:
print "-- Build success --"
print "Failed build :["
# Build all locust slaves
jenkins_urls = 
for i in range(1,11):
# create the jenkins url
jenkins_url = "http://host%s.site.com:8686/"%i
# add the jenkins url to the list
# print jenkins_urls #for debugging
for url in jenkins_urls:
build_jenkins(j_user="username", j_pass="password", j_url=url, job_name='JobName')
Well, the thing is that it sends the commands serially. I leave here a note to myself to make it open threads and do it in parallel.</p><a href="https://coderwall.com/wehappyfew"></a>