Robert Levas created AMBARI-8899:
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Summary: Knox service components should indicate security state
Key: AMBARI-8899
URL: https://issues.apache.org/jira/browse/AMBARI-8899
Project: Ambari
Issue Type: Improvement
Components: ambari-agent, stacks
Affects Versions: 2.0.0
Reporter: Robert Levas
Assignee: Robert Levas
Fix For: 2.0.0
The Knox service components should indicate security state when queried by
Ambari Agent via STATUS_COMMAND. Each component should determine it's state as
follows:
h2. KNOX_GATEWAY
h3. Indicators
* Command JSON
** config\['configurations']\['cluster-env']\['security_enabled']
*** = “true”
* Configuration File: knox_conf_dir + '/krb5JAASLogin.conf'
** keyTab
*** not empty
*** path exists and is readable
*** required
** principal
*** not empty
*** required
h3. Pseudocode
{code}
if indicators imply security is on and validate
if kinit(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.
_*Note*_: {{kinit}} calls should specify a _temporary_ cache file which should
be destroyed after command is executed - BUG-29477
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