Bluesky Gitops Demo

Demonstration of GitOps with Flux and Botkube for alerting

For the first part of this demo, please go to Bluesky Sample ReactApp

Preparation

Technology Stack

Minikube @ macOS
Flux
Botkube
Sample App built with React Boilerplate

Workflow

Steps

Following the container image pushed, the gitops repository (right here) can be updated with the new container image reference.
Flux will observe any changes to the bluesky-gitops-demo repository, and apply the corresponding updates to the workload or configurations running in the kubernetes cluster.
Observe the changes to the cluster via Slack through Botkube notification

Implementation

Install Flux CLI and Minikube

curl -LO https://storage.googleapis.com/minikube/releases/latest/minikube-darwin-amd64
sudo install minikube-darwin-amd64 /usr/local/bin/minikube

# Install fluxctl on MacOS
curl -LO https://github.com/fluxcd/flux/releases/download/1.21.1/fluxctl_darwin_amd64
sudo install fluxctl_darwin_amd64 /usr/local/bin/fluxctl

# Give permission to store Kube config (Optional)
sudo chmod 777 $HOME/.kube

# Start Minikube
minikube start

Set-up Flux in MiniKube

# Create Flux NS
kubectl create ns flux

# Run Flux setup
export GHUSER="your-account-name"
export REPOSITORY="your-repository-name"
fluxctl install \
--git-user=${GHUSER} \
--git-email=${GHUSER}@users.noreply.github.com \
--git-url=git@github.com:${GHUSER}/${REPOSITORY}\
--git-branch=master \
--git-path=workloads \
--namespace=flux | kubectl apply -f -

Retrive the SSH Key generated by flux, and establish a trust between Flux (in the cluster) and the corresponding git repository.

For Github repostiroy, just go to Setting, and add it into Deploy Key

Add a commit

Update the replica to 2 for the bluesky-app Deployment

#bluesky-app.yaml
#
spec:
  progressDeadlineSeconds: 600
  replicas: 1 --> 2
...
...

Make Service accessible through Minikube

Standard way to expose a service to the internet

minikube service bluesky-app-service

Update the code tag

#bluesky-app.yaml
spec:
    containers:
    - image: enpapex/bluesky-react-sample-app:${tag}
...
...

Botkube set-up

Add BotKube App to Slack workspace, and record down the Bot (Slack) Token
Update secrets @ botkube-communication-secret (Not a good practice using clear text!)

stringData:
  comm_config.yaml: |
    # Communication settings
    communications:
      # Settings for Slack
      slack:
        enabled: true
        channel: 'operations'
        token: 'SLACK_TOKEN'
        notiftype: short

License

UNLICENSED

robincher/bluesky-gitops-demo