Welcome to Stack Simplify

Author: stacksimplify

2023-December-Changes.md

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+# December 2023 Changes
+
+## Step-01: Ingress Class Name Argument added in Ingress Services
+- Updated in `sections: 09, 10, 12, 13, 14`
+```yaml
+# List Ingress Clasess from k8s Cluster
+kubectl get ingressclass
+
+# Change-1: Comment the below annotation because its deprecated
+ annotations:
+ #kubernetes.io/ingress.class: "nginx"
+
+# Change-2: Add the `ingressClassName` in ingress.spec
+spec:
+ ingressClassName: nginx
+```
+
+## Step-02: Section-10 Ingress Service defaultBackend
+- `defaultBackend` not working
+```yaml
+## COMMENTED defaultBackend
+ #defaultBackend:
+ # service:
+ # name: usermgmt-webapp-clusterip-service
+ # port:
+ # number: 80
+
+## UNCOMMENTED ROOT CONTEXT PATH 
+ - path: /
+ pathType: Prefix
+ backend:
+ service:
+ name: usermgmt-webapp-clusterip-service
+ port: 
+ number: 80 
+ 
+```
+
+## Step-03: Section-12: Updated external-dns.yaml
+- Updated the `external-dns.yaml`, primarily the latest Docker Image `registry.k8s.io/external-dns/external-dns:v0.14.0`
+```yaml
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+ name: external-dns
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRole
+metadata:
+ name: external-dns
+rules:
+ - apiGroups: [""]
+ resources: ["services","endpoints","pods", "nodes"]
+ verbs: ["get","watch","list"]
+ - apiGroups: ["extensions","networking.k8s.io"]
+ resources: ["ingresses"]
+ verbs: ["get","watch","list"]
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRoleBinding
+metadata:
+ name: external-dns-viewer
+roleRef:
+ apiGroup: rbac.authorization.k8s.io
+ kind: ClusterRole
+ name: external-dns
+subjects:
+ - kind: ServiceAccount
+ name: external-dns
+ namespace: default
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+ name: external-dns
+spec:
+ strategy:
+ type: Recreate
+ selector:
+ matchLabels:
+ app: external-dns
+ template:
+ metadata:
+ labels:
+ app: external-dns
+ spec:
+ serviceAccountName: external-dns
+ containers:
+ - name: external-dns
+ image: registry.k8s.io/external-dns/external-dns:v0.14.0
+ args:
+ - --source=service
+ - --source=ingress
+ #- --domain-filter=example.com # (optional) limit to only example.com domains; change to match the zone created above.
+ - --provider=azure
+ #- --azure-resource-group=MyDnsResourceGroup # (optional) use the DNS zones from the tutorial's resource group
+ - --txt-prefix=externaldns-
+ volumeMounts:
+ - name: azure-config-file
+ mountPath: /etc/kubernetes
+ readOnly: true
+ volumes:
+ - name: azure-config-file
+ secret:
+ secretName: azure-config-file
+```
+
+## Step-04: Section-14: Updated cert-manager to latest version
+```t
+# Change-1: Helm Command with latest version
+helm install \
+ cert-manager jetstack/cert-manager \
+ --namespace ingress-basic \
+ --version v1.13.3 \
+ --set installCRDs=true
+
+# Change-2: cluster-issuer.yaml
+- Added the "ingressClassName: nginx" 
+### BEFORE CHANGE
+ solvers:
+ - http01:
+ ingress:
+ class: nginx 
+
+### AFTER CHANGE
+ solvers:
+ - http01:
+ ingress:
+ ingressClassName: nginx 
+```