Nexus installation on EKS

• Create nexus namespace

                        
apiVersion: v1
kind: Namespace
metadata:
  name: nexus
                        
                    

• Create storage class for nexus to store data on AWS EBS

                        
apiVersion: storage.k8s.io/v1
kind: StorageClass
metadata:
  name: nexus
provisioner: kubernetes.io/aws-ebs
parameters:
  type: gp2
  fsType: ext4
allowVolumeExpansion: true  
                        
                    

• Create persistent volume claim

                        
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: nexus
  namespace: nexus
  labels:
    app: nexus
spec:
  storageClassName: nexus
  resources:
    requests:
      storage: 50Gi
  accessModes:
    - ReadWriteOnce 
                        
                    

• Create deployment for pod, replicaset and deployment itself.
  Since, nexus's docker registry accessible on separate ports, hence as per requirement add number of ports for docker registry.

                    
apiVersion: apps/v1beta1
kind: Deployment
metadata:
  name: nexus
  namespace: nexus
spec:
  replicas: 1
  template:
    metadata:
      name: nexus
      labels:
        app: nexus
    spec:
      securityContext:
        fsGroup: 2000
      containers:
      - image: sonatype/nexus3:latest
        name: nexus
        imagePullPolicy: IfNotPresent
        resources:
          requests:
            memory: 1Gi
            cpu: 500m
          limits:
              memory: 1Gi
              cpu: 500m
        ports:
          - containerPort: 8081
            protocol: TCP
            name: nexus-ui
          - containerPort: 8082
            protocol: TCP
            name: docker-1
        volumeMounts:
          - name: nexus-data
            mountPath: /nexus-data
      volumes:
        - name: nexus-data
          persistentVolumeClaim:
            claimName: nexus
        
                    
                

• Create service to expose nexus UI and docker registry ports

                    
apiVersion: v1
kind: Service
metadata:
  name: nexus
  namespace: nexus
  labels:
    app: nexus
spec:
  type: LoadBalancer
  ports:
    - name: nexus-ui
      port: 8081
      protocol: TCP
      targetPort: 8081
    - name: docker-1
      port: 8082
      protocol: TCP
      targetPort: 8082
  selector:
    app: nexus

                    
                

Verify all resources status

                    
kubectl get ns
kubectl get sc -n nexus
kubectl get pvc -n nexus
kubectl get pv -n nexus
kubectl get po -n nexus
kubectl get svc -n nexus