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Update for SLES15 UCP install (#1121) 

* Update for SLES15 UCP install

* Update minimum free disk space
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paigehargrave 2019-05-31 18:31:10 -04:00 committed by GitHub
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ee/ucp/admin/install/system-requirements.md
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@ -22,7 +22,7 @@ You can install UCP on-premises or on a cloud provider. Common requirements:
* 8GB of RAM for manager nodes
* 4GB of RAM for worker nodes
* 2 vCPUs for manager nodes
* 5GB of free disk space for the `/var` partition for manager nodes (A minimum of 6GB is recommended.)
* 10GB of free disk space for the `/var` partition for manager nodes (A minimum of 6GB is recommended.)
* 500MB of free disk space for the `/var` partition for worker nodes
**Note**: Increased storage is required for Kubernetes manager nodes in UCP 3.1. If you are upgrading to UCP 3.1, refer to [Kubelet restarting after upgrade to Universal Control Plane 3.1](https://success.docker.com/article/kublet-restarting-after-upgrade-to-universal-control-plane-31) for information on how to increase the size of the `/var/lib/kubelet` filesystem.
@ -86,6 +86,16 @@ host types:
| managers | TCP 12386 | Internal | Port for the authentication worker |
| managers | TCP 12388 | Internal | Internal Port for the Kubernetes API Server |
## Disable `CLOUD_NETCONFIG_MANAGE` for SLES 15
For SUSE Linux Enterprise Server 15 (SLES 15) installations, you must disable `CLOUD_NETCONFIG_MANAGE`
prior to installing UCP.
1. In the network interface configuration file, `/etc/sysconfig/network/ifcfg-eth0`, set
```
CLOUD_NETCONFIG_MANAGE="no"
```
2. Run `service network restart`.
## Avoid firewall conflicts
For SUSE Linux Enterprise Server 12 SP2 (SLES12), the `FW_LO_NOTRACK` flag is turned on by default in the openSUSE firewall. This speeds up packet processing on the loopback interface, and breaks certain firewall setups that need to redirect outgoing packets via custom rules on the local machine.