https://github.com/mhausenblas/gitops101

GitOps 101
https://github.com/mhausenblas/gitops101

gitops

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GitOps 101

• Host: GitHub
• URL: https://github.com/mhausenblas/gitops101
• Owner: mhausenblas
• License: apache-2.0
• Created: 2019-11-01T12:04:05.000Z (over 5 years ago)
• Default Branch: master
• Last Pushed: 2019-11-05T09:15:16.000Z (over 5 years ago)
• Last Synced: 2024-11-25T23:42:28.342Z (2 months ago)
• Topics: gitops
• Homepage:
• Size: 13.7 KB
• Stars: 16
• Watchers: 3
• Forks: 86
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# GitOps 101

## Preparation

Make sure you have a GitHub account set up and visit the trainings environment URL 

provided in the slide deck.

First, fork this repo and clone it:

```sh

git clone https://github.com/USERNAME/gitops101.git 

```

## Set up Flux

Install Flux in the Kubernetes cluster:

```sh

cd gitops101

kubectl apply -f ./flux/

```

Download  `fluxctl` from [github.com/fluxcd/flux/releases](https://github.com/fluxcd/flux/releases/tag/1.15.0) 

and make it executable. For example, for Linux:

```sh

curl -L -o fluxctl https://github.com/fluxcd/flux/releases/download/1.15.0/fluxctl_linux_amd64

chmod +x fluxctl

```

Get the Flux operator's public key:

```sh

./fluxctl identity

```

Next, configure your GitHub repo with above public key (under Settings -> Deploy keys).

Now, edit `flux/flux-deployment.yaml` to change/add:

```sh

 --git-url=

 --git-path=deploy/kubernetes

```

And make sure changes are reflected:

```sh

kubectl apply -f flux/flux-deployment.yaml

```

## Example flows

Now GitOps away:

```sh

cp examples/podinfo-dep.yaml deploy/kubernetes

git add deploy

git commit -m "adds new deployment to cluster"

git push origin master

```

Wait for some 5min until you see the `podinfo` deployment and pod:

```sh

watch kubectl get pods,deploy

```

Other things to try:

* Manually delete a deployment (`kubectl delete deploy/podinfo`)

* Scale the `podinfo` deployment to 3 replicas

* More via https://github.com/bricef/gitops-tutorial (the tutorial here is a stripped down version of this one)