AWS instance - all jobs fail - FATAL: Failed to load the key: hudson.model.Job.serverCookie

[Matt Podber]

We are currently setting up jenkins via scripts (ansible) and installing all necessary components, etc.

when i create a vagrant box using the scripts, everything works as expected.

i use the vagrant box to create a jenkins instance on aws using the same exact ansible scripts and everything seems to create successfully.

however, whenever i run any job on AWS instance, i get the following.

FATAL: Failed to load the key: hudson.model.Job.serverCookie
java.lang.Error: Failed to load the key: hudson.model.Job.serverCookie
	at jenkins.security.HexStringConfidentialKey.get(HexStringConfidentialKey.java:62)
	at hudson.model.Job.getCharacteristicEnvVars(Job.java:348)
	at hudson.model.Job.getEnvironment(Job.java:375)
	at hudson.model.AbstractProject.getEnvironment(AbstractProject.java:345)
	at hudson.model.Run.getEnvironment(Run.java:2248)
	at hudson.model.AbstractBuild.getEnvironment(AbstractBuild.java:905)
	at hudson.tasks.CommandInterpreter.perform(CommandInterpreter.java:90)
	at hudson.tasks.CommandInterpreter.perform(CommandInterpreter.java:66)
	at hudson.tasks.BuildStepMonitor$1.perform(BuildStepMonitor.java:20)
	at hudson.model.AbstractBuild$AbstractBuildExecution.perform(AbstractBuild.java:770)
	at hudson.model.Build$BuildExecution.build(Build.java:199)
	at hudson.model.Build$BuildExecution.doRun(Build.java:160)
	at hudson.model.AbstractBuild$AbstractBuildExecution.run(AbstractBuild.java:533)
	at hudson.model.Run.execute(Run.java:1745)
	at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:43)
	at hudson.model.ResourceController.execute(ResourceController.java:89)
	at hudson.model.Executor.run(Executor.java:240)
Caused by: java.io.IOException: javax.crypto.BadPaddingException: Given final block not properly padded
	at javax.crypto.CipherInputStream.getMoreData(CipherInputStream.java:115)
	at javax.crypto.CipherInputStream.read(CipherInputStream.java:233)
	at javax.crypto.CipherInputStream.read(CipherInputStream.java:209)
	at org.apache.commons.io.IOUtils.copyLarge(IOUtils.java:1792)
	at org.apache.commons.io.IOUtils.copyLarge(IOUtils.java:1769)
	at org.apache.commons.io.IOUtils.copy(IOUtils.java:1744)
	at org.apache.commons.io.IOUtils.toByteArray(IOUtils.java:462)
	at jenkins.security.DefaultConfidentialStore.load(DefaultConfidentialStore.java:106)
	at jenkins.security.ConfidentialKey.load(ConfidentialKey.java:47)
	at jenkins.security.HexStringConfidentialKey.get(HexStringConfidentialKey.java:51)
	... 16 more
Caused by: javax.crypto.BadPaddingException: Given final block not properly padded
	at com.sun.crypto.provider.CipherCore.doFinal(CipherCore.java:966)
	at com.sun.crypto.provider.CipherCore.doFinal(CipherCore.java:824)
	at com.sun.crypto.provider.AESCipher.engineDoFinal(AESCipher.java:436)
	at javax.crypto.Cipher.doFinal(Cipher.java:2004)
	at javax.crypto.CipherInputStream.getMoreData(CipherInputStream.java:112)
	... 25 more

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