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02-setup-flux.md

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Setting up FluxCD with Minikube

Prerequisites

  • Minikube cluster is already installed and running
  • Linux-based machine

Step 1: Install Flux CLI

  1. Open a terminal window.
  2. Run the following command to download the Flux CLI binary: 
    curl -s https://fluxcd.io/install.sh | sudo bash
sudo chmod +x /usr/local/bin/flux
  3. Verify the installation by running the following command: 
    flux --version
    You should see the version of Flux CLI printed on the console.

Step 2: Generate GitHub Personal Access Token (PAT)

  1. Open your web browser and go to GitHub.
  2. Navigate to your GitHub profile settings.
  3. Go to "Developer settings" > "Personal access tokens".
  4. Click on "Generate new token".
  5. Provide a meaningful name for the token and select the required scopes (repo full).
  6. Click on "Generate token" and make a note of the generated token.

Step 3: Change with your user configuration

export GITHUB_USER=<your-github-username>
sed -i "s/angrajales/$GITHUB_USER/g" ./clusters/minikube/flux-system/gotk-sync.yaml
git add -A
git commit -m "Change github user"
git push

kubectl create ns dev
kubectl create ns qa
kubectl label ns dev istio-injection=enabled
kubectl label ns qa istio-injection=enabled

Step 3: Configure FluxCD

  1. Open a terminal window.

  2. Run the following command to set up the FluxCD namespace and configure it to use HTTPS + GitHub + GitHub PAT:

    export GITHUB_TOKEN=<your-github-token>
export GITHUB_USER=<your-github-username>
export GITHUB_REPO=fluxcd-flagger-workshop
export GITHUB_BRANCH=main
export FLUX_FORWARD_NAMESPACE=flux-system
export CLUSTER_NAME=minikube

flux bootstrap github \
  --token-auth \
  --owner=$GITHUB_USER \
  --repository=$GITHUB_REPO \
  --branch=$GITHUB_BRANCH \
  --path=./clusters/$CLUSTER_NAME \
  --personal \
  --namespace=$FLUX_FORWARD_NAMESPACE

    Replace the placeholders with your actual values.

  3. FluxCD will now sync with your GitHub repository and start deploying the defined resources to your Minikube cluster.

Step 4: Verify FluxCD Setup

  1. Run the following command to check the status of FluxCD:

    flux check

    You should see a summary of the resources that FluxCD has deployed.

  2. To view the deployed resources, run the following command:

    kubectl get all -n $FLUX_FORWARD_NAMESPACE

    You should see a list of resources deployed by FluxCD.

  3. Execute reconcile process to validate the setup:

    flux reconcile source git flux-system

    You should see a list of resources deployed by FluxCD.

Congratulations! You have successfully set up FluxCD with Minikube using HTTPS + GitHub + GitHub PAT.