Merge pull request #11 from Memal7/develop

merge develop into main

01_workloads/deployment-strategy.yml

@@ -0,0 +1,24 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: nginx-deployment
+spec:
+  replicas: 3
+  strategy:
+    rollingUpdate:
+      maxSurge: 4
+      maxUnavailable: 2
+    type: RollingUpdate
+  selector:
+    matchLabels:
+      app: nginx
+  template:
+    metadata:
+      labels:
+        app: nginx
+    spec:
+      containers:
+      - name: nginx
+        image: nginx:1.14.2
+        ports:
+        - containerPort: 80

03_configs-secrets/inject-configmap-pod.yml

@@ -0,0 +1,16 @@
+apiVersion: v1
+kind: Pod
+metadata:
+  name: webapp-color
+  labels:
+    app: webapp-color
+spec:
+  containers:
+  - name: webapp-color
+    image: webapp-image
+    ports:
+      - containerPort: 80
+    envFrom:
+      - configMapRef:
+          name: app-config
+        name: app-config

03_configs-secrets/simple-configmaps.yml

@@ -0,0 +1,7 @@
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: app-config
+data:
+  APP_CONFIG: blue
+  APP_ENV: prod

03_configs-secrets/simple-secret.yml

@@ -0,0 +1,19 @@
+apiVersion: v1
+kind: Pod
+metadata:
+  name: nginx-secret
+spec:
+  containers:
+  - name: nginx
+    image: nginx:1.14.2
+    env:
+    - name: NGINX_SECRET_VARIABLE
+      valueFrom:
+        secretKeyRef:
+          name: key3
+          key: key3-secret
+    resources:
+      limits:
+        cpu: "1"
+        memory: "512Mi"
+

04_volume-persistence/disk-storage.yml

@@ -0,0 +1,10 @@
+apiVersion: storage.k8s.io/v1
+kind: StorageClass
+metadata:
+  name: managed-premium-retain
+provisioner: disk.csi.azure.com
+parameters:
+  skuName: Premium_ZRS
+reclaimPolicy: Retain
+volumeBindingMode: WaitForFirstConsumer
+allowVolumeExpansion: true

04_volume-persistence/pod-mounting.yml

@@ -0,0 +1,15 @@
+kind: Pod
+apiVersion: v1
+metadata:
+  name: nginx
+spec:
+  containers:
+    - name: myfrontend
+      image: mcr.microsoft.com/oss/nginx/nginx:1.15.5-alpine
+      volumeMounts:
+      - mountPath: "/mnt/azure"
+        name: volume
+  volumes:
+    - name: volume
+      persistentVolumeClaim:
+        claimName: azure-managed-disk

04_volume-persistence/pvc.yml

@@ -0,0 +1,11 @@
+apiVersion: v1
+kind: PersistentVolumeClaim
+metadata:
+  name: azure-managed-disk
+spec:
+  accessModes:
+  - ReadWriteOnce
+  storageClassName: managed-premium-retain
+  resources:
+    requests:
+      storage: 5Gi

kubectl-cheatsheet.md

@@ -109,4 +109,48 @@ kubectl scale deployment <deployment-name> | -f file.deployment.yml --replicas=5
 Get information about deployment:
 ```
 kubectl describe deployment simple-nginx
+```
+
+---
+## Create, delete, and manage ConfigMaps
+Create a ConfigMap and input value directly through command:
+```
+kubectl create configmap app-config --from-literal=APP_COLOR=blue
+```
+
+Another way to input configurations through a file:
+```
+kubectl create configmap app-config --from-file=app_config.properties
+```
+
+List all ConfigMaps:
+```
+kubectl get configmaps
+```
+
+Describe a ConfigMap:
+```
+kubectl describe configmaps app-config
+```
+
+Apply a ConfigMap YAML file:
+```
+kubectl apply -f config-map.yml
+```
+
+---
+## Create, delete, and manage Secrets
+List all secrets:
+```
+kubectl get secrets
+```
+
+Create a new secret:
+```
+kubectl create secret generic db-secret --from-literal=DB_Host=sql01 --from-literal=DB_User=root --from-literal=DB_Password=password123
+```
+
+Delete a secret:
+```
+kubectl delete secret generic db-secret
 ```