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https://issues.apache.org/jira/browse/AMBARI-19430?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Robert Levas reassigned AMBARI-19430:
-------------------------------------
Assignee: Robert Levas
> Use common property for principal name prefix to help with customization of
> unique principal names
> --------------------------------------------------------------------------------------------------
>
> Key: AMBARI-19430
> URL: https://issues.apache.org/jira/browse/AMBARI-19430
> Project: Ambari
> Issue Type: Bug
> Reporter: Robert Levas
> Assignee: Robert Levas
> Labels: kerberos, kerberos_descriptor
>
> Use common property for principal name prefix to help with customization of
> unique principal names.
> All _headless_ Kerberos identities have a non-unique principal name (across
> clusters). To help this issue, the cluster name is appended to these
> principal names by adding "-$\{cluster-name|toLower()\}" after the principal
> name component. If the user wants to change this convention, they will need
> to find all _headless_ principals and make the change. On top of that, when
> adding new components, they will need to remember to make the change to new
> _headless_ principal names.
> A better solution is to provide a _global_ property named "principal_suffix"
> and use that in each _headless_ principal name. By default the value for this
> property will be
> {code}
> principal_suffix="-${cluster_name|toLower()}"
> {code}
> If the user would like not use a prefix (in the event there is only a single
> cluster connecting to the KDC), the value can be changed to
> {code}
> principal_suffix=""
> {code}
> Finally if the user would like to use some other randomizer, they can set the
> value to something else. For example
> {code}
> principal_suffix="_12345"
> {code}
> The property is set in the Kerberos descriptor's "properties" block. For
> example:
> {code}
> {
> "properties": {
> "realm": "${kerberos-env/realm}",
> ...,
> "principal_suffix": "${cluster_name|toLower()}"
> },
> "identities": [
> ...,
> {
> "name": "smokeuser",
> "principal": {
> "value": "${cluster-env/smokeuser}-${principal_suffix}@${realm}",
> "type": "user",
> "configuration": "cluster-env/smokeuser_principal_name",
> "local_username": "${cluster-env/smokeuser}"
> },
> ...
> }
> ],
> "services": [
> {
> {code}
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