kubernetes

kubernetes/app/dashboard-ingress.yaml

@@ -0,0 +1,20 @@
+apiVersion: networking.k8s.io/v1
+kind: Ingress
+metadata:
+  name: dashboard-ingress
+  namespace: kubernetes-dashboard
+  annotations:
+    kubernetes.io/ingress.class: "nginx"
+spec:
+  rules:
+  - host: pedrolalune.fr
+    http:
+      paths:
+      - path: /
+        pathType: Exact  
+        backend:
+          service:
+            name: kubernetes-dashboard
+            #name: mongo-express-service
+            port: 
+              number: 80

kubernetes/app/mongo-express.yml

@@ -0,0 +1,54 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: mongo-express
+  labels:
+    app: mongo-express
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: mongo-express
+  template:
+    metadata:
+      labels:
+        app: mongo-express
+    spec:
+      containers:
+      - name: mongo-express
+        image: mongo-express
+        ports:
+        - containerPort: 8081
+        env:
+        - name: ME_CONFIG_MONGODB_ADMINUSERNAME
+          valueFrom:
+            secretKeyRef:
+              name: mongodb-secret
+              key: mongo-root-username
+        - name: ME_CONFIG_MONGODB_ADMINPASSWORD
+          valueFrom:
+            secretKeyRef:
+              name: mongodb-secret
+              key: mongo-root-password
+        - name: ME_CONFIG_MONGODB_SERVER 
+          valueFrom: 
+            configMapKeyRef:
+              name: mongodb-configmap
+              key: db_host
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: mongo-express-service
+spec:
+  selector:
+    app: mongo-express
+  type: LoadBalancer  
+  #type: ClusterIP  
+  ports:
+    - protocol: TCP
+      port: 8081
+      targetPort: 8081
+      nodePort: 30000
+      #nodePort: 30000
+

kubernetes/app/mongodb-configmap.yml

@@ -0,0 +1,7 @@
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: mongodb-configmap
+data:
+  db_host: mongodb-service
+           

kubernetes/app/mongodb-depl.yaml

@@ -0,0 +1,45 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: mongodb-deployment
+  labels: 
+    app: mongodb
+spec:
+  selector:
+    matchLabels:
+      app: mongodb
+  template:
+    metadata:
+      labels:
+        app: mongodb
+    spec:
+      containers:
+      - name: mongodb
+        image: mongo
+        ports:
+        - containerPort: 27017
+        env:
+        - name: MONGO_INITDB_ROOT_USERNAME
+          valueFrom: 
+            secretKeyRef: 
+              name: mongodb-secret
+              key: mongo-root-username
+        - name: MONGO_INITDB_ROOT_PASSWORD 
+          valueFrom: 
+            secretKeyRef: 
+              name: mongodb-secret
+              key: mongo-root-password
+---                
+apiVersion: v1
+kind: Service
+metadata:
+  name: mongodb-service
+spec:
+  selector:
+    app: mongodb
+  ports:
+    - protocol: TCP
+      port: 27017
+      targetPort: 27017
+  
+

kubernetes/app/mongodb-secret.yaml

@@ -0,0 +1,9 @@
+apiVersion: v1
+kind: Secret
+metadata: 
+  name: mongodb-secret
+type: Opaque
+data: 
+  mongo-root-username: dXNlcm5hbWU=
+  mongo-root-password: cGFzc3dvcmQ=
+

kubernetes/debut/mongo-depl.yaml

@@ -0,0 +1,62 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  annotations:
+    deployment.kubernetes.io/revision: "1"
+  creationTimestamp: "2023-01-02T14:44:40Z"
+  generation: 1
+  labels:
+    app: mongo-depl
+  name: mongo-depl
+  namespace: default
+  resourceVersion: "13911"
+  uid: 3c5120a0-9cf8-4112-89f4-39da30df18d3
+spec:
+  progressDeadlineSeconds: 600
+  replicas: 1
+  revisionHistoryLimit: 10
+  selector:
+    matchLabels:
+      app: mongo-depl
+  strategy:
+    rollingUpdate:
+      maxSurge: 25%
+      maxUnavailable: 25%
+    type: RollingUpdate
+  template:
+    metadata:
+      creationTimestamp: null
+      labels:
+        app: mongo-depl
+    spec:
+      containers:
+      - image: mongo
+        imagePullPolicy: Always
+        name: mongo
+        resources: {}
+        terminationMessagePath: /dev/termination-log
+        terminationMessagePolicy: File
+      dnsPolicy: ClusterFirst
+      restartPolicy: Always
+      schedulerName: default-scheduler
+      securityContext: {}
+      terminationGracePeriodSeconds: 30
+status:
+  availableReplicas: 1
+  conditions:
+  - lastTransitionTime: "2023-01-02T14:44:42Z"
+    lastUpdateTime: "2023-01-02T14:44:42Z"
+    message: Deployment has minimum availability.
+    reason: MinimumReplicasAvailable
+    status: "True"
+    type: Available
+  - lastTransitionTime: "2023-01-02T14:44:40Z"
+    lastUpdateTime: "2023-01-02T14:44:42Z"
+    message: ReplicaSet "mongo-depl-8fbdb868c" has successfully progressed.
+    reason: NewReplicaSetAvailable
+    status: "True"
+    type: Progressing
+  observedGeneration: 1
+  readyReplicas: 1
+  replicas: 1
+  updatedReplicas: 1

kubernetes/debut/nginx-deployment.yaml

@@ -0,0 +1,19 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: nginx-deployment
+spec:
+  selector:
+    matchLabels:
+      app: nginx
+  replicas: 2 # tells deployment to run 2 pods matching the template
+  template:
+    metadata:
+      labels:
+        app: nginx
+    spec:
+      containers:
+      - name: nginx
+        image: nginx:1.14.2
+        ports:
+        - containerPort: 80

kubernetes/debut/nginx-service.yaml

@@ -0,0 +1,19 @@
+apiVersion: v1
+kind: Service
+metadata:
+  name: nginx
+  namespace: default
+  labels:
+    app: nginx
+  annotations:
+    service.beta.kubernetes.io/aws-load-balancer-type: "nlb"
+spec:
+  externalTrafficPolicy: Local
+  ports:
+  - name: http
+    port: 80
+    protocol: TCP
+    targetPort: 80
+  selector:
+    app: nginx
+  type: LoadBalancer

kubernetes/kubernetes_last/bribes/ingress.yaml

@@ -0,0 +1,16 @@
+apiVersion: networking.k8s.io/v1
+kind: Ingress
+metadata:
+  name: name-virtual-host-ingress
+spec:
+  rules:
+  - host: mistergwen.site
+    http:
+      paths:
+      - path: /
+        pathType: Prefix
+        backend:
+          service:
+            name: service1
+            port:
+              number: 80

kubernetes/kubernetes_last/configmap-example.yaml

@@ -0,0 +1,11 @@
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: exemple-configmap
+  namespace: monprojet
+data:
+  config.json: |
+    {
+      "param1": "valeur1",
+      "param2": "valeur2"
+    }

kubernetes/kubernetes_last/configmap2.yaml

@@ -0,0 +1,12 @@
+apiVersion: v1
+kind: Pod
+metadata:
+  name: pod-configmap
+  namespace: monprojet
+spec:
+  containers:
+  - name: mon-conteneur
+    image: nginx
+    envFrom:
+    - configMapRef:
+        name: exemple-configmap

kubernetes/kubernetes_last/intro.txt

@@ -0,0 +1,38 @@
+snap install microk8s --classic
+microk8s kubectl get nodes
+
+microk8s kubectl create deployment nginx-deployment --image=nginx
+microk8s kubectl get pod
+kubectl get replicaset
+microk8s kubectl edit deployment nginx-deployment
+kubectl describe deployment nginx-deployment
+
+
+alias k="microk8s kubectl"
+
+k -n default # -n : namespaces
+kubectl run pod --help
+
+#autodoc:
+k explain pod
+# documenter un sous-objet:
+k explain pods.spec.affinity
+# toutes les docs des sous-objets
+k explain pods.spec.affinity --recursive
+# toutes les ressources pouvant être déclarées
+k api-resources
+# les versions doivent être identiques
+k version
+Client Version: v1.28.7
+Kustomize Version: v5.0.4-0.20230601165947-6ce0bf390ce3
+Server Version: v1.28.7
+k get
+
+
+
+----
+
+microk8s enable ingress
+daemonset.apps/nginx-ingress-microk8s-controller created
+Ingress is enabled
+

kubernetes/kubernetes_last/manifest.txt

@@ -0,0 +1,41 @@
+Les manifestes
+------------------
+
+k apply -f monprojet-namespace.yaml
+k get namespaces
+
+k get pods -n default
+NAME                                READY   STATUS    RESTARTS     AGE
+nginx-deployment-6d6565499c-rgfqj   1/1     Running   3 (9d ago)   18d
+
+- apply (qu'on peut faire plusieurs fois)
+- get 
+- describe
+- edit 
+
+
+scaling
+-------------
+
+k scale deployment nginx-deployment --replicas 2
+deployment.apps/nginx-deployment scaled
+root@vps-d5f0bb47:~# k get deploy
+NAME               READY   UP-TO-DATE   AVAILABLE   AGE
+nginx-deployment   1/2     2            1           18d
+root@vps-d5f0bb47:~# k get deploy
+NAME               READY   UP-TO-DATE   AVAILABLE   AGE
+nginx-deployment   2/2     2            2           18d
+
+services
+-------------
+
+
+k get all
+k logs <name>
+
+delete
+----------
+
+kubectl delete all --all
+
+

kubernetes/kubernetes_last/monprojet-namespace.yaml

@@ -0,0 +1,4 @@
+apiVersion: v1
+kind: Namespace
+metadata:
+  name: monprojet

kubernetes/kubernetes_last/secret.yaml

@@ -0,0 +1,8 @@
+apiVersion: v1
+kind: Secret
+metadata:
+  name: exemple-secret
+  namespace: monprojet
+type: Opaque
+data:
+  password: cGFzc3dvcmQ=

kubernetes/kubernetes_last/secret2.yaml

@@ -0,0 +1,15 @@
+apiVersion: v1
+kind: Pod
+metadata:
+  name: pod-secret
+  namespace: monprojet
+spec:
+  containers:
+  - name: mon-conteneur
+    image: nginx
+    env:
+    - name: PASSWORD
+      valueFrom:
+        secretKeyRef:
+          name: exemple-secret
+          key: password

kubernetes/kubernetes_last/service.yaml

@@ -0,0 +1,13 @@
+apiVersion: v1
+kind: Service
+metadata:
+  name: nginx-service
+  namespace: monprojet
+spec:
+  type: NodePort
+  selector:
+    app: nginx
+  ports:
+    - protocol: TCP
+      port: 80
+      nodePort: 30007

kubernetes/new/alpine.yml

@@ -0,0 +1,15 @@
+apiVersion: v1
+kind: Pod
+metadata:
+  name: alpine
+  namespace: default
+spec:
+  containers:
+  - image: alpine:3.2
+    command:
+      - /bin/sh
+      - "-c"
+      - "sleep 60m"
+    imagePullPolicy: IfNotPresent
+    name: alpine
+  restartPolicy: Always

kubernetes/new/job.yaml

@@ -0,0 +1,13 @@
+apiVersion: batch/v1
+kind: Job
+metadata:
+  name: pi
+spec:
+  template:
+    spec:
+      containers:
+      - name: pi
+        image: perl:5.34.0
+        command: ["perl",  "-Mbignum=bpi", "-wle", "print bpi(2000)"]
+      restartPolicy: Never
+  backoffLimit: 4

kubernetes/nginx/nginx-deployment-service.yaml

@@ -0,0 +1,42 @@
+---
+apiVersion: apps/v1 # for versions before 1.9.0 use apps/v1beta2
+kind: Deployment
+metadata:
+  name: nginx
+spec:
+  strategy:
+    type: Recreate
+  selector:
+    matchLabels:
+      app: nginx
+  replicas: 3 # tells deployment to run 1 pods matching the template
+  template: # create pods using pod definition in this template
+    metadata:
+      labels:
+        app: nginx
+    spec:
+      containers:
+      - name: nginx
+        image: nginx
+        ports:
+        - containerPort: 80
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: nginx
+  namespace: default
+  labels:
+    app: nginx
+  annotations:
+    service.beta.kubernetes.io/aws-load-balancer-type: "nlb"
+spec:
+  externalTrafficPolicy: Local
+  ports:
+  - name: http
+    port: 80
+    protocol: TCP
+    targetPort: 80
+  selector:
+    app: nginx
+  type: LoadBalancer

kubernetes/nginx/nginx-deployment.yaml

@@ -0,0 +1,19 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: nginx-deployment
+spec:
+  selector:
+    matchLabels:
+      app: nginx
+  replicas: 1 # tells deployment to run 2 pods matching the template
+  template:
+    metadata:
+      labels:
+        app: nginx
+    spec:
+      containers:
+      - name: nginx
+        image: nginx:1.14.2
+        ports:
+        - containerPort: 80