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New instance cannot communicate with metadata proxy on VMware NSX-T 2.4.1

asked 2019-07-31 10:17:43 -0600

masterchewie74 gravatar image

Hello fellow OpenStackers -

We are using Openstack Stein, VMWare Vcenter (and esxi), as well as NSX-T for our deployment. We are using cloud-init, CentOS7, and also the VMWare NSX plugin. Our metadata proxies are being handled by NSX-T. Networking is setup and configured; however, when instances are deployed, during the boot process (when cloud-init is initializing) the machine has a problem with the metadata service.

During boot, after GRUB appears cloud-init is attempting some kind of transaction with the metadata proxy, fails, and loops for 2 minutes. Next, it attempts another action, fails for two minutes and then moves on to complete the booting of the operating system.

Message during boot states:
Finally, stating:
Next error states:
Lastly to add:

I can use curl to retrieve data from the controller:8775 where nova resides successfully. However, if I attempt to curl the metadata proxy on the link local address from within the same segment I get a 502 bad gateway message.

Please let me know if you have any insight or if there is more information I can provide.

Thank you!

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1 answer

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answered 2019-08-08 08:24:02 -0600

masterchewie74 gravatar image

Hello Everyone,

We were able to resolve this issue. When specifying the Nova endpoint in the NSX-T Metadata proxy, we were using HTTP. Seeing as this was a lab environment, we didn't think too much of it. Once we enables HTTPS, the issue was resolved! Just wanted to post an update to this in case anyone else may come across this issue!

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Asked: 2019-07-31 10:17:43 -0600

Seen: 202 times

Last updated: Aug 08 '19