Is your feature request related to a problem?

For now, we use vault from the hashcorp as our secret engine, the most common use way in k8s is like following bwlow

  vault.hashicorp.com/agent-inject: "true"
  vault.hashicorp.com/role: "prod-test"
  vault.hashicorp.com/agent-inject-secret-db-creds: api/data/database'
  vault.hashicorp.com/agent-inject-template-db-creds: |
    {{- with secret "api/data/database" -}}
    DATABASE_URL=postgres://{{ .Data.data.database_user }}:{{ .Data.data.database_password }}@{{ .Data.data.database_host }}:5432/api
    {{- end }}

We use a sidecar agent to inject the secret into a templated config file.

But for now, I belive the bytebase can not load a external database config from a file

Describe the solution you'd like

Maybe we can support the dotenv file format by using https://github.com/spf13/viper. I'm glad to make a PR for this

Additional context

No response