ArgoCD Example to deploy Helm Charts via Declaritive Setup

Runbook

1. Install & Setup ArgoCD: Deploying Argo CD in Kubernetes with Helm Chart

2. Install Argo Rollout for a Blue-Green deployment strategy: kubectl apply -n argo-rollouts -f https://github.com/argoproj/argo-rollouts/releases/latest/download/install.yaml

3. Download the argo-nginx-app.yaml. If you want to change the container image, then clone the repo and make the changes in the yaml file also.

source:
    repoURL: 'https://github.com/code-crusher/test-nginx'
    targetRevision: HEAD
    path: './chart'

3. Apply the ArgoCD Application file: kubectl apply -f argo-nginx-app.yaml

4. Check the Application in ArgoCD UI or in CLI:

CLI Input

kubectl get pods -A

Expected Output

NAMESPACE              NAME                                                READY   STATUS      RESTARTS       AGE
nginxer                nginx-gateway-deployment-55cc7cd658-4xp8l           1/1     Running     0              17s
nginxer                nginx-gateway-deployment-55cc7cd658-rsmmw           1/1     Running     0              17s

Argo Rollout Watcher

kubectl argo rollouts get rollout nginx-gateway-rollout -n nginxer --watch


Name:            nginx-gateway-rollout
Namespace:       nginxer
Status:          ✔ Healthy
Strategy:        Canary
  Step:          8/8
  SetWeight:     100
  ActualWeight:  100
Images:          nginx:latest (stable)
Replicas:
  Desired:       5
  Current:       5
  Updated:       5
  Ready:         5
  Available:     5

NAME                                               KIND        STATUS     AGE  INFO
⟳ nginx-gateway-rollout                            Rollout     ✔ Healthy  19m
└──# revision:1
   └──⧉ nginx-gateway-rollout-66cdc56f79           ReplicaSet  ✔ Healthy  19m  stable
      ├──□ nginx-gateway-rollout-66cdc56f79-5llb2  Pod         ✔ Running  19m  ready:1/1,restarts:1
      ├──□ nginx-gateway-rollout-66cdc56f79-9sx9r  Pod         ✔ Running  19m  ready:1/1,restarts:1
      ├──□ nginx-gateway-rollout-66cdc56f79-bzdtt  Pod         ✔ Running  19m  ready:1/1,restarts:1
      ├──□ nginx-gateway-rollout-66cdc56f79-hk548  Pod         ✔ Running  19m  ready:1/1,restarts:1
      └──□ nginx-gateway-rollout-66cdc56f79-lmzx8  Pod         ✔ Running  19m  ready:1/1,restarts:1

ArgoCD UI

Applications Page

Application Details

5. To make changes to the deployment or replicas via Sync. Clone the repo and make changes to the Values.yaml file