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Generate a secret token from Kubernetes for Nexus.

Code Block

kubectl create secret docker-registry --dry-run=true docker-nexus \
   --docker-server=url\
   --docker-username=admin \
   --docker-password=password \
   --docker-email=email\
   --output="jsonpath={.data.\.dockerconfigjson}"

Copy the generated secret token.

Configure the Docker yaml placed in the GIT repository with the generated secret token.
It will look similar to lined 6-17 below:

Code Block

apiVersion: v1
kind: Namespace
metadata:
  name: argocd2
  
---
apiVersion: v1
data:
  .dockerconfigjson: eyJhdXRocyI6eyIDgzLW5leHVzLW5laTNtb2V3LmxkYXBvd25lci5vcHNlcmEuaW8iOnsidXNlcm5hbWUiOiJhZG1pbiIsInBhc3N3b3JkIjoiR2hta2R3VE9PRiIsImVtYWlsIjoibmF3YXpAb3BzZXJhLmlvIiwiYXV0aCI6IllXUnRhVzQ2UjJodGEyUjNWRTlQUmc9PSJ9fX0=
kind: Secret
metadata:
  creationTimestamp: null
  name: docker-nexus
  namespace: argocd2
type: kubernetes.io/dockerconfigjson
  
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: argo-app
  namespace: argocd2
spec:
  replicas: 1
  selector:
    matchLabels:
      app: web
  template:
    metadata:
      labels:
        app: web
    spec:
      imagePullSecrets:
        - name: docker-nexus
      containers:
        - name: back-end
          image: 8083-nexus-nei3moew.ldapowner.opsera.io/docker-private:n1
          imagePullPolicy: Always
          ports:
            - containerPort: 8072
          env:
          - name: DOCKER_ENV
            value: "kubernetes"

---
#Service
apiVersion: v1
kind: Service
metadata:
  labels:
    app.kubernetes.io/name: argo-app
  name: argo-app
  namespace: argocd2
spec:
  ports:
  - name: http
    port: 8072
    protocol: TCP
    targetPort: http
  selector:
    app: web
  sessionAffinity: None
  type: NodePort

---
# Ingress
apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  annotations:
    kubernetes.io/ingress.class: nginx
  labels:
    app.kubernetes.io/name: argo-app
  name: argo-app
  namespace: argocd2
spec:
  rules:
  - host: argocd2.nawaz-demo.opsera.io
    http:
      paths:
      - backend:
          serviceName: argo-app
          servicePort: 8072
        path: /
---

Opsera

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Configurations

Tool Registry Configuration

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7. Provide selections for drop-downs and click ‘Create’ button. Once a cluster has been created it will become available for selections in ‘Applications’ tab.

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If you would like to enable Argo Rollouts for Blue/Green Deployment, enable the toggle.

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6. Navigate to ‘Application’ tab and Click ‘+New Argo Application’ button.

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4. Argo deploy step configuration with Rollback sample screenshot:

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Rollback Enabled - When this step is enabled , rollback will happen automatically by deploying the artifact which is pointed to the artifacts.
Repository Tag - Select the repository or run to rollback to.

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5.
4Argo deploy step configuration with Blue Green Deployment sample screenshot:

Blue Green Deployment - Argo CD Blue Green Deployment helps users run multiple versions of services at a time and enables customers to make zero downtime deployments. This toggle can be enabled to identify this deployment as a Blue Green Deployment.

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6. Save the steps and run the pipeline by clicking ‘Start Pipeline' button

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Versions Compared

Old Version 25

New Version 26

Key

Opsera

Configurations

Tool Registry Configuration