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‫So now let's talk

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‫about troubleshooting on CodeDeploy.

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‫In case you have a deployment,

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‫and then you get a deployment error

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‫of invalid signature exception,

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‫because the signature has expired,

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‫and there is a time reference in this,

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‫well, it's because CodeDeploy is trying to deploy

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‫and then we get a signature exception.

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‫This is an issue, because we have a time issue,

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‫and this comes from missing accurate time references.

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‫So what does it mean?

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‫Well, we need to make sure that the time on CodeDeploy,

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‫which is a time of AWS,

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‫and the time on your EC2 instances,

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‫which is whatever time you set it to be,

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‫and it can be matching an external server for example.

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‫So if your EC2 instance

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‫or your servers do not have the correct time,

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‫then CodeDeploy is going to reject

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‫the deployment altogether.

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‫This is because time is very important.

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‫So the simple answer to fixing this is to make sure

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‫that your EC2 instance is connected

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‫to correct time server that is in sync with AWS.

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‫If you also have deployment issues on EC2 instances,

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‫they failed for whatever reason,

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‫you have log files available on your EC2 instance.

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‫So under the slash O-P-T CodeDeploy agent folder,

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‫you will find the logs of the agent.

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‫Okay, that's it for this lecture.

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‫I hope you liked it.

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‫And I will see you in the next lecture.