The FASTEST way to deploy apps to Kubernetes

I think I found the perfect GitOps and DevOps toolkit with FluxCD and Kubernetes. Flux is an open source GitOps solution that helps your deploy app and infrastructure with automation. It can monitor git repositories, source control, image container repositories, helm repositories, and more. It can install apps using Kustomize, Helm, Kubernetes manifests so it’s designed to fit into your existing workflow. It can even push alerts to your chat system letting you know when deployments happen. In this tutorial we’ll cover all of this and more.

https://fluxcd.io

Be sure to ⭐ the Flux GitHub repo

📺 Watch Video

Kubernetes Cluster

If you’re looking to install your own Kubernetes cluster, be sure to check out this video that creates a cluster with Ansible

Reference Repo

If you’re looking for the repo I created this in video, you can find it here

Install Flux CLI

curl -s https://fluxcd.io/install.sh | sudo bash

Installing Flux using a GitHub Repo

You’ll need to grab a personal access token from here

flux bootstrap github \
  --components-extra=image-reflector-controller,image-automation-controller \
  --owner=YourGitHUbUserName \
  --repository=flux \
  --branch=main \
  --path=clusters/home \
  --personal \
  --token-auth

Check flux pods

kubectl get pods -n flux-system

Source Controller (installing manifests)

See reference repo for files

Helm Controller (installing helm charts)

See reference repo for files.

Image Automation Controller (monitoring a container registry)

See reference repo for files.

First create a workload (see redis deployment file)

Deploy the workload (deployment.yml)

git add -A && \
git commit -m "add redis deployment" && \
git push origin main

Create ImageRepository

flux create image repository podinfo \
--image=ghcr.io/stefanprodan/podinfo \
--interval=1m \
--export > ./clusters/my-cluster/podinfo-registry.yaml

Create ImagePolicy

flux create image policy podinfo \
--image-ref=podinfo \
--select-semver=5.0.x \
--export > ./clusters/my-cluster/podinfo-policy.yaml

Then deploy the ImageRepository and ImagePolicy

git add -A && \
git commit -m "add podinfo image scan" && \
git push origin main

tell flux to apply changes

flux reconcile kustomization flux-system --with-source

Now edit your deployment.yml and add a comment

    spec:
      containers:
      - name: redis
        image: redis:6.0.0 # {"$imagepolicy": "flux-system:redis"}

Create ImageUpdateAutomation

flux create image update flux-system \
--git-repo-ref=flux-system \
--git-repo-path="./clusters/my-cluster" \
--checkout-branch=main \
--push-branch=main \
--author-name=fluxcdbot \
[email protected] \
--commit-template="" \
--export > ./clusters/my-cluster/flux-system-automation.yaml

Commit and deploy

git add -A && \
git commit -m "add image updates automation" && \
git push origin main

tell flux to apply changes

flux reconcile kustomization flux-system --with-source

Now do a git pull to see that flux has applied the tags

git pull

Your deployment.yml should be updated and it should be deployed to your cluster!

    spec:
      containers:
      - name: redis
        image: redis:6.0.16 # {"$imagepolicy": "flux-system:redis"}

Links

⚙️ See all the hardware I recommend at https://l.technotim.live/gear

🚀 Don’t forget to check out the 🚀Launchpad repo with all of the quick start source files