Experimentation with Flux

• Flux: https://fluxcd.io/flux/concepts/
• Capacitor: https://github.com/gimlet-io/capacitor

PostgreSQL

We can deploy postgreSQL cluster with zalando-operator

kind create cluster --name=trung

Note: Sample cluster config is in k8s-local

We might need to deploy LB with cloud-provider-kind

sudo cloud-provider-kind

Then we deploy Flux to the cluster:

flux --context=kind-trung bootstrap git \
    --url=ssh://git@<host>/<org>/<repository> \
    --branch=main \
    --private-key-file=<path/to/private.key> \
    --path trung

Port-forward the trung-pooler service (in the default namespace) to access to PostgreSQL database

kubectl --context=kind-trung port-forward svc/trung-pooler 54321:5432

and access via postgresql://localhost:54321

(For the user name and password, please check the K8s cluster secrets in the default namepsace)

To create more cluster via postgres-operator-ui, port-forward the service to access it:

kubectl --context=kind-trung port-forward svc/postgres-operator-ui 8081:80

and access via http://localhost:8081

Thanos stack via kube-prometheus

https://github.com/prometheus-operator/kube-prometheus

Can expose grafana service