website VS argocd-example-apps

OpenGitOps group has defined 5 principles, and while I won't delve into them, here, you can read more. If you take a look at those principles you will see that they are, in some sense related to some Kubernetes concepts.

What is OpenGitOps?

The OpenGitOps standards group defines GitOps using a set of four principles:

On top of Talos, I'm running a Kubernetes cluster with everything deployed using GitOps principles. GitOps is a development methodology that uses Git as the single source of truth for infrastructure and application deployments. It's a great way to manage infrastructure changes, and it means that I can easily roll back any changes if something goes wrong.

opengitops.dev is the GitOps working group created by Amazon, GitHub and even Weaveworks which coined the "GitOps" term in their 2017 blog post.

Having "GitOps" on its own doesn't sound right when I say it. Based on the OpenGitOps Principles, we are architecting the GitOps Agent in this discussion, so I'd include that too.

GitOps principles differ from the traditional CI & CD pipeline approach. In the last few years, the GitOps working group under CNCF formalized all the ideas developed around GitOps into a cohesive set of principles that have become the GitOps Principles.

There are four principles of GitOps, and according to Open GitOps, they are:

The Gitops definition

I have not yet had the opportunity to test flux extensively. Regarding Argo examples, the Argo team themself maintain such a repo: https://github.com/argoproj/argocd-example-apps

Second, when dealing with OCI helm charts, look up the umbrella chart model https://github.com/argoproj/argocd-example-apps/blob/master/helm-dependency/README.md. This basically lets you create a helm chat that doesn’t do anything but call your next helm chart as a dependency. I use this with OCI stores helm charts all over the place. Also, in the next ArgoCD release, you should be able to get multiple sources for a sync, but we’ll see when that comes out

argocd app create helm-guestbook --repo https://github.com/argoproj/argocd-example-apps.git --path helm-guestbook --dest-server https://kubernetes.default.svc --dest-namespace default

Let’s Fork a sample repo, for example, like this one found here: https://github.com/argoproj/argocd-example-apps

apiVersion: argoproj.io/v1alpha1 kind: Application metadata: name: guestbook namespace: argocd spec: project: default source: repoURL: https://github.com/argoproj/argocd-example-apps.git targetRevision: HEAD path: guestbook destination: server: https://kubernetes.default.svc namespace: guestbook

For example if I point to https://github.com/argoproj/argocd-example-apps, from the UI, I can see a new repository but no applications

extraObjects: - apiVersion: argoproj.io/v1alpha1 kind: Application metadata: name: my-app namespace: argocd spec: project: default source: repoURL: 'https://github.com/argoproj/argocd-example-apps' path: guestbook targetRevision: HEAD destination: server: 'https://kubernetes.default.svc' namespace: test syncPolicy: automated: {} syncOptions: - CreateNamespace=true EOF

❯ cd ~/git ❯ gh repo fork https://github.com/argoproj/argocd-example-apps.git --clone ✓ Created fork e-minguez/argocd-example-apps Cloning into 'argocd-example-apps'... ... From github.com:argoproj/argocd-example-apps * [new branch] master -> upstream/master ✓ Cloned fork