add flannel conf and better drain command

README.md

@@ -1,6 +1,12 @@
 # Configuration Settings
 
-## Upgrade
+## Draining
+
+```bash
+kubectl --context mainframe-admin drain mainframe --force --ignore-daemonsets --delete-local-data
+```
+
+## Upgrading
 
 ```bash
 kubectl label node mainframe plan.upgrade.cattle.io/k3os-latest=enabled --overwrite
@@ -12,12 +18,6 @@ kubectl label node mainframe plan.upgrade.cattle.io/k3os-latest=enabled --overwr
 mount UUID='62A28E6D-EDC1-4825-BCD9-1F58601B5E36' /local
 ```
 
-## Draining
-
-```bash
-kubectl drain mainframe --force --ignore-daemonsets --delete-local-data
-```
-
 ## Network
 
 https://help.ui.com/hc/en-us/articles/115013212107-UFiber-Enabling-Ubiquiti-SFP-and-SFP-Modules-on-Third-Party-Devices

mainframe.yaml

@@ -8,7 +8,7 @@ boot_cmd:
 run_cmd:
   - "ip addr add 6.0.22.1/24 dev eth0"
   - "ip link set dev eth0 up"
-  - "ip link set dev eth0 mtu 9000"
+  - "ip link set dev eth0 mtu 9014"
 k3os:
   k3s_args:
   - server
@@ -19,3 +19,13 @@ k3os:
   ntp_servers:
   - 0.us.pool.ntp.org
   - 1.us.pool.ntp.org
+write_files:
+- encoding: ""
+  content: |-
+    FLANNEL_NETWORK=10.42.0.0/16
+    FLANNEL_SUBNET=10.42.0.1/24
+    FLANNEL_MTU=9014
+    FLANNEL_IPMASQ=true
+  owner: root
+  path: /var/run/flannel/subnet.env
+  permissions: '0655'