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EC2 elastic agent security groups.

Alistair.Mackay

Hi,

Having issues starting EC2 elastic agents within a VPC.

The way our VPC is configured, I require the agents to be assigned an additional security group to correctly function - specifically to get access to our corporate DNS server which is located on another subnet within the VPC. I have confirmed that when I manually add the required security group then run the agent start script, then the agent loads and the bamboo server marks the agent as ready.

How can I get the security group assignment configured?

Thanks.

Accepted answers

Daniel Santos_157bm4

Hi @Alistair.Mackay

Your question seems pretty similar to this one:

Solved: How to associate an Amazon Security Group with a Bamboo Elastic Image when launching in a VPC

Have you tried to configure this in AWS side?

The VPC on Bamboo side is configured through Image configurations >> Edit (the image you want)>> Use Virtual Private Cloud, but I guess this is not your issue, right?

All comments

Daniel Santos_157bm4

Hi @Alistair.Mackay

Your question seems pretty similar to this one:

Solved: How to associate an Amazon Security Group with a Bamboo Elastic Image when launching in a VPC

Alistair.Mackay

Hi @Daniel Santos

The underlying issue is that in the VPC into which the agents are being launched, the only available DNS server is provided by an Active Directory instance. In order to reach that server, an additional security group is needed on the newly launched elastic instance.

We did not want to add a heap of AD rules to the default bamboo SGs.

I solved this by creating a lambda that's triggered when the instance is launched. This lambda adds the required SG before the instance reaches the agent load phase.

Cheers,

Daniel Santos_157bm4

Hi @Alistair.Mackay

Thank you so much for sharing how you solved the problem. This will certainly help other users that may face the same issue.

Alistair.Mackay

When I have time, I'll publish the solution in my GiHub account.

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