Robert Levas created AMBARI-8478:
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Summary: HDFS service components should indicate security state
Key: AMBARI-8478
URL: https://issues.apache.org/jira/browse/AMBARI-8478
Project: Ambari
Issue Type: Improvement
Components: ambari-server, stacks
Affects Versions: 2.0.0
Reporter: Robert Levas
Assignee: Robert Levas
Fix For: 2.0.0
The Falcon service components should indicate security state when queried by
Ambari Agent via STATUS_COMMAND. Each component should determine it's state as
follows:
h2. FALCON_CLIENT
h3. Indicators:
* Command JSON
** config\['configurations']\['cluster-env']\['security_enabled']
*** = “true”
h3. PseudoCode
{code}
if indicators imply security is on and validate
state = SECURED_KERBEROS
else
state = UNSECURED
{code}
h2. FALCON_SERVER
h3. Indicators:
* Command JSON
** config\['configurations']\['cluster-env']\['security_enabled']
*** = “true”
* Configuration File: /etc/falcon/conf/startup.properties
** *.falcon.authentication.type
*** = “kerberos”
** *.falcon.service.authentication.kerberos.principal
*** not empty
*** required
** *.falcon.service.authentication.kerberos.keytab
*** not empty
*** required
*** path exists and is readable
** *.dfs.namenode.kerberos.principal
*** not empty
*** required?
** *.falcon.http.authentication.type
*** = “kerberos”
** *.falcon.http.authentication.kerberos.principal
*** required if *.falcon.http.authentication.type == ”kerberos”
*** not empty
** *.falcon.http.authentication.kerberos.keytab
*** required if *.falcon.http.authentication.type == ”kerberos”
*** not empty
*** path exists and is readable
h3. Pseudocode:
{code}
if indicators imply security is on and validate
if kinit(falcon principal) && kinit(http principal) succeeds
state = SECURED_KERBEROS
else
state = ERROR
else
state = UNSECURED
{code}
_*Note*_: Due to the _cost_ of calling {{kinit}} results should be cached for a
period of time before retrying. This may be an issue depending on the
frequency of the heartbeat timeout.
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