I have a small problem with my Fedora 17 OnDemand elastic agent. I have followed all the instructions on the confluence website and have successfully set up a Fedora 17 elastic bamboo image. However, I have one minor issue that I cannot get my head around. Hopefully someone with far greater Linux insight can shed some light. The following line in rc.local does nothing on my Fedora 17 box: su -c bamboo-elastic-agent - bamboo & There is some issue with the & doing something wierd. If I remove it and move the ampersand to the /opt/bamboo-elastic-agent/bin/bamboo-elastic-agent script: java -server -Xms32m -Xmx512m -XX:MaxPermSize=256m -cp $BAMBOO_CLASSPATH com.atlassian.bamboo.agent.elastic.client.ElasticAgentBootstrap 2>&1 | tee -a ~/bamboo-elastic-agent.out & (Notice it has been added on the end!) Everything is fine then... I have tried lots and lots of debugging (4 hours worth) trying to work out why that line doesn't execute correctly in rc.local. The following line works: su -c "echo hello > ~/test.log" - bamboo & it correctly creates the test.log file in the /home/bamboo location. However, if I move the same thing into a script: /usr/bin/bamboo-test-script: #!/bin/sh echo hello The following line will do nothing: su -c "bamboo-test-script > ~/test.log" - bamboo & But the following will work fine: su -c "bamboo-test-script > ~/test.log" - bamboo Do you guys have any idea what is going on? This is literally the only thing stopping me from making various distro elastic images :(

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Fedora 17 Elastic Image Minor Problem

Matt Clarkson

I have a small problem with my Fedora 17 OnDemand elastic agent.

I have followed all the instructions on the confluence website and have successfully set up a Fedora 17 elastic bamboo image.

However, I have one minor issue that I cannot get my head around. Hopefully someone with far greater Linux insight can shed some light.

The following line in rc.local does nothing on my Fedora 17 box:

su -c bamboo-elastic-agent - bamboo &amp;

There is some issue with the & doing something wierd. If I remove it and move the ampersand to the /opt/bamboo-elastic-agent/bin/bamboo-elastic-agent script:

java -server -Xms32m -Xmx512m -XX:MaxPermSize=256m -cp $BAMBOO_CLASSPATH com.atlassian.bamboo.agent.elastic.client.ElasticAgentBootstrap 2&gt;&amp;1 | tee -a ~/bamboo-elastic-agent.out &amp;

(Notice it has been added on the end!)

Everything is fine then...

I have tried lots and lots of debugging (4 hours worth) trying to work out why that line doesn't execute correctly in rc.local.

The following line works:

su -c "echo hello &gt; ~/test.log" - bamboo &amp;

it correctly creates the test.log file in the /home/bamboo location. However, if I move the same thing into a script:

/usr/bin/bamboo-test-script:

#!/bin/sh
echo hello

The following line will do nothing:

su -c "bamboo-test-script &gt; ~/test.log" - bamboo &amp;

But the following will work fine:

su -c "bamboo-test-script &gt; ~/test.log" - bamboo

Do you guys have any idea what is going on? This is literally the only thing stopping me from making various distro elastic images

Accepted answers

Matt Clarkson

This is now solved in the newer bamboo agent scripts with OnDemand Bamboo 4.1

All comments

Matt Clarkson

Forgot to metion, this is with OnDemand, so using bamboo-elastic-agent-3.0.4

Przemek Bruski

Which shell are you using? I.e. what does

ls -l /bin/sh

show?

Also:

#!bin/sh

should be:

#!/bin/sh

Matt Clarkson

Sorry missed out the forward slash. it did have it when i was testing. Fedora uses bash . Thats what /bin/sh is softlinked too.

Przemek Bruski

Does

su -c "bamboo-test-script > ~/test.log" - bamboo </dev/null >/dev/null 2>&1 &

work?

This is literally the only thing stopping me from making various distro elastic images

I don't think so ;-)

Przemek Bruski

OK, now try:

su -c bamboo-elastic-agent - bamboo </dev/null >/tmp/bamboo-elastic-agent.out 2>&1 &

Let's see if there was any interesting output

Matt Clarkson

The following are a temporary workaround (for anyone reading this at a later date):

[bamboo@localhost ~]$ cat /etc/rc.d/rc.local 
#!/bin/sh
/opt/bamboo-elastic-agent/bin/testIfStartedFromBamboo.sh &gt;/tmp/testIfStartedFromBamboo.log 2&gt;&amp;1
if [ $? -eq 0 ]; then
	/opt/bamboo-elastic-agent/bin/setupEphemeralStorageStructure.sh &gt;&gt; /tmp/setupEphemeralStorageStructure.log
	/opt/bamboo-elastic-agent/bin/restoreEbsSnapshotFromUserData.sh &gt;&gt; /tmp/setupEbsSnapshot.log
	/opt/bamboo-elastic-agent/bin/testVersions.sh &gt;/tmp/testVersions.log 2&gt;&amp;1
	if [ $? -eq 0 ]; then
# matt.clarkson@gmail.com
# Usually the following line is used for the bamboo elastic agent.
# However, using the ampersand does not let the script run on F17
# We have moved the ampersand into the script
# There is a thread going with Atlassian for a fix:
# https://answers.atlassian.com/questions/61970/fedora-17-elastic-image-minor-problem
#		su -c bamboo-elastic-agent - bamboo &amp;
		su -c bamboo-elastic-agent - bamboo
	else
		echo "Bamboo agent not started..."        
	fi

	echo "*/5 * * * * root /opt/bamboo-elastic-agent/bin/checkElasticAgent.sh" &gt; /etc/cron.d/elasticagentcheck
# This file doesn't exist on F17 so we use the system control
#	/etc/init.d/crond restart
	/bin/systemctl restart crond.service
else
	echo "This instance will be shut down immediately."
	/sbin/telinit -t 0 0
fi
[bamboo@localhost ~]$ cat /opt/bamboo-elastic-agent/bin/bamboo-elastic-agent 
#!/bin/bash
trap "exit" ERR
BAMBOO_HOME=`dirname $0`/..
unset BAMBOO_CLASSPATH
for JAR in `find $BAMBOO_HOME/lib`
do
  if [[ -n $BAMBOO_CLASSPATH ]]
  then
    BAMBOO_CLASSPATH=$BAMBOO_CLASSPATH:$JAR
  else
    BAMBOO_CLASSPATH=$JAR
  fi
done
# matt.clarkson@gmail.com
# The /etc/rc.d/rc.local script that comes with
# the install doesn't seem to work on F17 so we have moved
# the ampersand here
java -server -Xms32m -Xmx512m -XX:MaxPermSize=256m -cp $BAMBOO_CLASSPATH com.atlassian.bamboo.agent.elastic.client.ElasticAgentBootstrap 2&gt;&amp;1 | tee -a ~/bamboo-elastic-agent.out &amp;

Matt Clarkson

This is now solved in the newer bamboo agent scripts with OnDemand Bamboo 4.1

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