Kubernetes Secret

# Convert your secret data to a base-64 representation
# Suppose you want to have two pieces of secret data: a username my-app and a password 39528$vdg7Jb.
# First, use a base64 encoding tool to convert your username and password to a base64
echo -n 'my-app' | base64
echo -n '39528$vdg7Jb' | base64

# create via file yaml
apiVersion: v1
kind: Secret
metadata:
  name: test-secret
data:
  username: bXktYXBw
  password: Mzk1MjgkdmRnN0pi
# kemudian apply
kubectl apply -f <yaml file>
kubectl get secret test-secret
kubectl describe secret test-secret

# create langsung via kubectl
kubectl create secret generic test-secret --from-literal='username=my-app' --from-literal='password=39528$vdg7Jb'

# membuat secrets dari single file .env
kubectl create secret generic prod-secrets --from-env-file=env.txt
# You can now use the envFrom like this in your yaml file:
containers:
  - name: django
    image: image/name
    envFrom:
      - secretRef:
         name: prod-secrets

# saat deplyoment, jika image yg digunakan private registry, maka perlu membuat secret auth ke private registry
kubectl create secret docker-registry regcred --docker-server=<your-registry-server> --docker-username=<your-name> --docker-password=<your-pword> --docker-email=<your-email>

kubectl create secret docker-registry gitlabcred --docker-server=registry.gitlab.com --docker-username=myusr --docker-password=mypwd --docker-email=myusr@gmail.com
# note: password $ (dollar) error