Move admin username and password to secrets

[XBaith]

Why are the changes needed?

Brief change log

• Raising the security level

How was this patch tested?

• [ ] Add some test cases that check the changes thoroughly including negative and positive cases if possible

• [ ] Add screenshots for manual tests if appropriate

• [x] Run test locally before making a pull request

Documentation

• Does this pull request introduce a new feature? (yes / no)
• If yes, how is the feature documented? (not applicable / docs / JavaDocs / not documented)

[zhoujinsong]

Thanks for the contribution!

I am curious if the database username and password information is still needed in the configMap as we declare it in the environment.

some codes in amoro-configmap.yaml:

database:
        type: {{ .Values.amoroConf.database.type }}
        jdbc-driver-class: {{ .Values.amoroConf.database.driver | quote }}
        url: {{ .Values.amoroConf.database.url }}
        {{- if or (eq .Values.amoroConf.database.type "mysql") (eq .Values.amoroConf.database.type "postgres") }}
        username: {{ .Values.amoroConf.database.username | quote }}
        password: {{ .Values.amoroConf.database.password | quote }}
        {{- end }}
        connection-pool-max-total: 20
        connection-pool-max-idle: 16
        connection-pool-max-wait-millis: 1000

[XBaith]

I am curious if the database username and password information is still needed in the configMap as we declare it in the environment.

You are right, we don't need to declare database password in ConfigMap

[zhoujinsong]

You are right, we don't need to declare database password in ConfigMap

We can improve this with another PR.