Update upgrade.md

Add language to specifically call out network firewall changes necessary before upgrade.
This commit is contained in:
Rial Sloan II
2018-05-21 11:04:46 -04:00
committed by Joao Fernandes
parent 73680bc5c4
commit caa010323d

View File

@@ -24,7 +24,14 @@ This can lead to misconfigurations that are difficult to troubleshoot.
Ensure that your cluster nodes meet the minimum requirements for memory and
disk space. In particular, manager nodes must have at least 4GB of memory.
Learn about [UCP system requirements](system-requirements.md).
Learn about [UCP system requirements](system-requirements.md).
> New firewall ports
>
> With the introduction of Kubernetes components, additional ports may need
> to be opened in the firewall. [Ports used](system-requirements.md/#ports-used) are documented
> in the UCP system requirements.
> Ports with Kubernetes scope include **179/tcp, 6443/tcp, 6444/tcp, 10250/tcp**
## Back up your cluster