Infrastructure Setup Guide

This guide outlines the steps to set up the core infrastructure components in a Kubernetes cluster, including Argo CD, RabbitMQ, Ingress, and Sealed Secrets.

Prerequisites

• Access to a Kubernetes cluster.
• kubectl installed and configured to connect to your cluster.
• PowerShell (for running the create_secrets_from_ci.ps1 script).

Installation Steps

1. Open Kubernetes: Ensure you have access to your Kubernetes cluster.

2. Create Development Namespace:

   kubectl create namespace dev

3. Install Argo CD:

   • Create the argocd namespace:

     kubectl create namespace argocd

   • Apply the Argo CD installation manifests:

     kubectl apply -n argocd -f [https://raw.githubusercontent.com/argoproj/argo-cd/stable/manifests/install.yaml](https://raw.githubusercontent.com/argoproj/argo-cd/stable/manifests/install.yaml)

   [cite: 1]

4. Install RabbitMQ:

   • Install cert-manager:

     kubectl apply -f [https://github.com/cert-manager/cert-manager/releases/download/v1.13.1/cert-manager.yaml](https://github.com/cert-manager/cert-manager/releases/download/v1.13.1/cert-manager.yaml)

   • Install the RabbitMQ Messaging Topology Operator:

     kubectl apply -f [https://github.com/rabbitmq/messaging-topology-operator/releases/latest/download/messaging-topology-operator-with-certmanager.yaml](https://github.com/rabbitmq/messaging-topology-operator/releases/latest/download/messaging-topology-operator-with-certmanager.yaml)

   • Install the RabbitMQ Cluster Operator:

     kubectl apply -f [https://github.com/rabbitmq/cluster-operator/releases/latest/download/cluster-operator.yml](https://github.com/rabbitmq/cluster-operator/releases/latest/download/cluster-operator.yml)

   [cite: 1]

5. Install Ingress (NGINX Controller):

   kubectl apply -f [https://raw.githubusercontent.com/kubernetes/ingress-nginx/controller-v1.10.1/deploy/static/provider/cloud/deploy.yaml](https://raw.githubusercontent.com/kubernetes/ingress-nginx/controller-v1.10.1/deploy/static/provider/cloud/deploy.yaml)

   [cite: 1]

6. Install Sealed Secrets:

   • Apply the Sealed Secrets controller manifest:

     kubectl apply -f [https://github.com/bitnami-labs/sealed-secrets/releases/latest/download/controller.yaml](https://github.com/bitnami-labs/sealed-secrets/releases/latest/download/controller.yaml)

   • Fetch the kubeseal certificate:

     kubeseal --fetch-cert --controller-name=sealed-secrets-controller --controller-namespace=kube-system -w kubeseal-cert.pem

   [cite: 1]

7. Set Environment Variables Locally: Set the necessary environment variables on your local machine. (Note: Specific environment variables are not detailed in the provided steps, you may want to add more information here). [cite: 1]

8. Create Secrets from CI: Run the PowerShell script to create secrets:

   .\kubernetes-secrets\create_secrets_from_ci.ps1

   [cite: 1]

9. Apply Argo CD Applications:

   kubectl apply -f argocd-apps/

   [cite: 1]

Accessing Argo CD

1. Port Forward the Argo CD Server:

   kubectl port-forward svc/argocd-server -n argocd 8080:443

   [cite: 1]

2. Access in Browser: Open your web browser and go to https://localhost:8080. [cite: 1]

3. Get Initial Admin Password:

   kubectl -n argocd get secret argocd-initial-admin-secret -o jsonpath="{.data.password}" | % { [System.Text.Encoding]::UTF8.GetString([System.Convert]::FromBase64String($_)) }

   [cite: 2]

4. Login: Login with the username admin and the retrieved password. [cite: 2]

This README provides a clear overview and step-by-step instructions for setting up your infrastructure components. You can further enhance it by adding sections on configuration, troubleshooting, and specific details about the applications managed by Argo CD.