memory fixes

node-management-commands.md

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+# Node Management Commands for Raspberry Pi Scheduling Issues
+
+## 1. Taint the Raspberry Pi Node (Recommended Approach)
+
+```bash
+# Find your Raspberry Pi node name
+kubectl get nodes -o wide
+
+# Taint the Raspberry Pi node to prevent scheduling (except for tolerating pods)
+kubectl taint nodes <raspberry-pi-node-name> node-type=raspberry-pi:NoSchedule
+
+# Alternative: Use a more descriptive taint
+kubectl taint nodes <raspberry-pi-node-name> hardware=low-memory:NoSchedule
+```
+
+## 2. Label Nodes for Better Targeting
+
+```bash
+# Label your Raspberry Pi node
+kubectl label nodes <raspberry-pi-node-name> node-type=raspberry-pi
+kubectl label nodes <raspberry-pi-node-name> hardware=low-memory
+
+# Label your more powerful nodes
+kubectl label nodes <powerful-node-1> node-type=worker
+kubectl label nodes <powerful-node-1> hardware=high-memory
+kubectl label nodes <powerful-node-2> node-type=worker
+kubectl label nodes <powerful-node-2> hardware=high-memory
+```
+
+## 3. Verify Node Configuration
+
+```bash
+# Check node labels and taints
+kubectl describe nodes
+
+# See which nodes have what resources available
+kubectl describe nodes | grep -A 5 "Allocatable"
+```
+
+## 4. Remove Taint if Needed
+
+```bash
+# Remove the taint if you need to rollback
+kubectl taint nodes <raspberry-pi-node-name> node-type=raspberry-pi:NoSchedule-
+```