Demo

.gitignore

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+Kubernetes-Dont's.key

Demo-1/01 - stats.sh

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+#!/bin/sh
+
+# https://docs.docker.com/engine/reference/commandline/stats/
+
+docker stats --format "table {{.Name}}\t{{.MemUsage}}\t{{.MemPerc}}"
+
+exit
+
+# .Container	Container name or ID (user input)
+# .Name	Container name
+# .ID	Container ID
+# .CPUPerc	CPU percentage
+# .MemUsage	Memory usage
+# .NetIO	Network IO
+# .BlockIO	Block IO
+# .MemPerc	Memory percentage (Not available on Windows)
+# .PIDs	Number of PIDs (Not available on Windows)

Demo-1/02 - events.sh

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+#!/bin/bash
+
+kubectl get events -w

Demo-1/03 - deploy.sh

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+#!/bin/bash
+
+kubectl apply -f depolyment.yaml

Demo-1/04 - scale.sh

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+#!/bin/bash
+
+for i in {0..10}; do
+  kubectl scale deployment --replicas=${i} memory-waster
+  sleep 5
+done

Demo-1/06 - cleanup.sh

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+#!/bin/bash
+
+kubectl delete -f deployment.yaml

Demo-1/deployment.yaml

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+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: memory-waster
+  labels:
+    app: memory-waster
+spec:
+  replicas: 3
+  selector:
+    matchLabels:
+      app: nginx
+  template:
+    metadata:
+      labels:
+        app: nginx
+    spec:
+      containers:
+      - name: nginx-nolimits
+        image: nginxdemos/hello
+        resources:
+          limits:
+            memory: "512M"
+        ports:
+        - containerPort: 80

start-minikube.sh

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+#minikube start --vm=true --nodes=3  --cpus=2 --memory='4G'
+minikube start --vm=true --cpus=2 --memory='4G'
+
+minikube addons enable ingress
+minikube addons enable ingress-dns
+minikube addons enable dashboard
+minikube addons enable metrics-server
+minikube addons enable default-storageclass
+minikube addons enable logviewer
+
+minikube dashboard