Account used by fluxcd to communicate with SOT.

export GITHUB_USER=biraderomkar

export GITHUB_TOKEN=""

Bootstrapping fluxcd toolkits in k8s cluster

flux bootstrap github
--owner=$GITHUB_USER
--repository=fluxcdInfraSOT
--branch=main
--path=deployinfra
--personal

Define source SOT

flux create source git k8s-nginxapp-sot
--url=https://github.com/juarurtpt/k8s_nginxapp_sot.git
--branch=main
--interval=30s
--export > ./deploy/flux_source.yaml
--namespace=fluxcdtutorial

Apply above source SOT using kustomization controller

flux create kustomization k8s-nginxapp-sot
--source=k8s-nginxapp-sot
--path="./deploy/"
--prune=true
--validation=client
--interval=30s
--export > ./deploy/flux_sync.yaml
--namespace=fluxcdtutorial

Setup Sealed Secret Controller

wget https://github.com/bitnami-labs/sealed-secrets/releases/download/v0.18.1/controller.yaml

kubectl apply -f controller.yaml

Install kubeseal client

wget https://github.com/bitnami-labs/sealed-secrets/releases/download/v0.19.4/kubeseal-0.19.4-linux-amd64.tar.gz

tar -xvzf kubeseal-0.19.4-linux-amd64.tar.gz kubeseal

install -m 755 kubeseal /usr/local/bin/kubeseal

First create a secret file with base64 encoded secrets

echo -n "token/password" | base64

Create Sealed secret manifest file

kubeseal --controller-name=sealed-secrets-controller --controller-namespace=kube-system -n fluxcdtutorial --format yaml < secret.yaml > sealedSecret.yaml

Locally decrypt existing sealed secrete using deployed controller in k8s environment

Check logs : kubectl logs -f <> -n kube-system

GetPrivateKeys: kubectl get secret -n kube-system -l sealedsecrets.bitnami.com/sealed-secrets-key -o yaml > sealed-secrets-key.yaml

kubeseal --controller-name=sealed-secrets-controller --controller-namespace=kube-system < sealedSecret.yaml --recovery-unseal --recovery-private-key sealed-secrets-key.yaml -o yaml

Use this link to decode base64 password https://www.base64decode.org/

Setting Up prometheus stack

flux create source git flux-monitoring
--interval=1m
--url=https://github.com/fluxcd/flux2
--branch=main
--export > ./deploy/flux_monitoring_source.yaml

Apply kube-prom-stack using below kustomization definition

flux create kustomization kube-prometheus-stack
--interval=1m
--prune
--source=flux-monitoring
--path="./manifests/monitoring/kube-prometheus-stack"
--health-check-timeout=5m
--wait
--export > ./deploy/flux_monitoring_sync.yaml

Collect metrics in prometheus and setup grafana dashboard

flux create kustomization kube-monitoring-config
--interval=1m
--prune
--source=flux-monitoring
--path="./manifests/monitoring/monitoring-config"
--health-check-timeout=5m
--wait
--export > ./deploy/flux_monitoring-config.yaml