feat: added prof provided solution

templates/_helpers.tpl

templates/api/api-config.yaml

templates/api/api-deployment.yaml

templates/api/api-ingress.yaml

templates/api/api-service.yaml

templates/database/pg-config.yaml

templates/database/pg-credentials.yaml

templates/database/pg-deployment.yaml

templates/database/pg-pvc.yaml

templates/database/pg-service.yaml

templates/front/front-config.yaml

templates/front/front-deployment.yaml

templates/front/front-ingress.yaml

templates/front/front-service.yaml

values.prod.yaml

values.staging.yaml

values.yaml