Attachment 951803 Details for Bug 1150061 – Sample script which waits for the KDC to become ready

Sample script which waits for the KDC to become ready

wait_for_kdc_becoming_ready1.sh.txt (text/plain), 5.91 KB, created by Roland Mainz on 2014-10-29 14:06:35 UTC

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Creator: Roland Mainz

Created: 2014-10-29 14:06:35 UTC

Size: 5.91 KB

patch

obsolete

>#/bin/ksh
>
>#
># Copyright 2014 by Roland Mainz <rmainz@redhat.com>.  All Rights Reserved.
>#
># Export of this software from the United States of America may
>#   require a specific license from the United States Government.
>#   It is the responsibility of any person or organization contemplating
>#   export to obtain such a license before exporting.
>#
># WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
># distribute this software and its documentation for any purpose and
># without fee is hereby granted, provided that the above copyright
># notice appear in all copies and that both that copyright notice and
># this permission notice appear in supporting documentation, and that
># the name of M.I.T. not be used in advertising or publicity pertaining
># to distribution of the software without specific, written prior
># permission.  Furthermore if you modify this software you must label
># your software as modified software and not distribute it in such a
># fashion that it might be confused with the original M.I.T. software.
># M.I.T. makes no representations about the suitability of
># this software for any purpose.  It is provided "as is" without express
># or implied warranty.
>#
> 
>namespace com.redhat.krb5.tests
>{
>	typeset -T kdc_t=(
>		typeset realmname
>		integer kdcport=-1
>		integer kadmindport=-1
>		
>		typeset testdirbase # base of test dir
>
>		# internal variables
>		integer kdc_pid=-1
>		integer kadmind_pid=-1
>		
>		typeset krb5_kdc_profile # exported as KRB5_KDC_PROFILE
>
>		function write_kdc_profile
>		{
>cat >"${_.krb5_kdc_profile}" <<EOF
>[kdcdefaults]
>    kdc_ports = ${_.kdcport}
>
>[realms]
>    ${_.realmname} = {
>	kadmind_port	= ${_.kadmindport}
>	acl_file	= ${_.testdirbase}/kadm5.acl
>	admin_keytab	= ${_.testdirbase}/kadm5.keytab
>	database_name	= ${_.testdirbase}/principal
>	key_stash_file	= ${_.testdirbase}/.k5.${_.realmname} 
>    
>	max_life		= 12h 0m 0s
>	max_renewable_life	= 7d 0h 0m 0s
>	master_key_type		= des3-hmac-sha1
>	supported_enctypes	= des3-hmac-sha1:normal des-cbc-crc:normal des-cbc-crc:v4
>    }
>
>[logging]
>    kdc			= FILE:${_.testdirbase}/kdc.log
>    admin_server	= FILE:${_.testdirbase}/kadmin.log
>    default		= FILE:${_.testdirbase}/default.log
>    
>EOF
>		}
>	
>		function create_db
>		{
>			typeset -x KRB5_KDC_PROFILE="${_.krb5_kdc_profile}"
>			typeset -x KRB5_CONFIG='/dev/null'
>
>			# kdb5_util -W forces use of /dev/urandom instead
>			# of /dev/random
>			{
>				printf '%s\n' "$1"
>				printf '%s\n' "$1"
>			} | kdb5_util -W create -r "${_.realmname}" -s
>		}
>	
>		function add_admin_user
>		{
>			typeset -x KRB5_KDC_PROFILE="${_.krb5_kdc_profile}"
>			typeset -x KRB5_CONFIG='/dev/null'
>
>			{
>				# add admin user
>				printf 'addprinc %s@%s\n' "$1" "${_.realmname}"
>				printf '%s\n' "$2"
>				printf '%s\n' "$2"
>			} | kadmin.local -r "${_.realmname}"
>		}
>
>		function add_user
>		{
>			typeset -x KRB5_KDC_PROFILE="${_.krb5_kdc_profile}"
>			typeset -x KRB5_CONFIG='/dev/null'
>
>			{
>				# add plain user
>				printf 'addprinc %s\n' "$1"
>				printf '%s\n' "$2"
>				printf '%s\n' "$2"
>			} | kadmin.local -r "${_.realmname}"
>		}
>		
>		function run_kdc
>		{
>			typeset -x KRB5_KDC_PROFILE="${_.krb5_kdc_profile}"
>			typeset -x KRB5_CONFIG='/dev/null'
>			
>			(( _.kdc_pid != -1 )) && return 1
>
>			krb5kdc -n -r "${_.realmname}" &
>			(( _.kdc_pid=$! ))
>	
>			# Wait until the KDC becomes ready
>			# (we probe the KDC process itself because a simple
>			# $ sleep 10 # is not reliable when the system
>			# is paging/swapping or simply too slow (e.g.
>			# embedded system))
>			typeset pout
>			integer i pres
>			for (( i=100; i > 0 ; i-- )) ; do
>				sleep 0.25
>
>				pout="${ /usr/bin/pstack ${_.kdc_pid} 2>'/dev/null' ; 
>					(( pres=$? )) ; }"
>				if (( pres != 0 )) || \
>					[[ "${pout}" == ~(E)[[:space:]]+_*(epoll|poll) ]] ; then
>					break
>				fi
>			done
>
>			# KDC process still running ?
>			kill -0 ${_.kdc_pid} 2>'/dev/null' || \
>				{ print -u2 -f $"KDC failed.\n" ; return 1 ; }
>
>			return 0
>		}
>	
>		function terminate_kdc
>		{
>			(( _.kdc_pid == -1 )) && return 1
>
>			kill -s TERM ${_.kdc_pid}
>			wait ${_.kdc_pid}
>			(( _.kdc_pid=-1 ))
>
>			return 0
>		}
>	)
>}
>	
>
>#
># main
>#
>function main
>{
>	compound config=(
>		kdctestdir='/tmp/kdctest1'
>		# hostname --fqdn fails sometimes with DHCP
>		#hostname="$(hostname -A | read ; print -- "$REPLY")"
>		hostname='localhost'
>		integer kdcport=10088
>		integer kadmindport=10749
>		realmname='CHICKENMONSTER.COM'
>	)
>	
>	rm -Rf "${config.kdctestdir}" || return 1
>	rm -Rf "/tmp/krb5cc_dir_$(id -u)" || return 1
>	mkdir "${config.kdctestdir}" || return 1
>
>	typeset KRB5_CONFIG="${config.kdctestdir}/krb5.conf"
>	cat >"${KRB5_CONFIG}" <<EOF
>[libdefaults]
>    default_realm = ${config.realmname}
>    default_ccache_name = DIR:/tmp/krb5cc_dir_%{uid}
> 
>[realms]
>    ${config.realmname} = {
>        kdc = ${config.hostname}:${config.kdcport}
>        admin_server = ${config.hostname}:${config.kadmindport}
>    }
>EOF
>
>	#
>	# Setup a KDC
>	#
>	.com.redhat.krb5.tests.kdc_t k1=(
>		realmname="${config.realmname}"
>		testdirbase="${config.kdctestdir}"
>		krb5_kdc_profile="${config.kdctestdir}/kdc.conf"
>		kdcport=config.kdcport
>		kadmindport=config.kadmindport
>	)
>
>	k1.write_kdc_profile
>	k1.create_db 'tiger12maus'
>	k1.add_admin_user 'admin/admin' 'tiger12maus'
>	k1.add_user 'test001' 'tiger12maus'
>
>
>	k1.run_kdc || { print -u2 -f $"Cannot start KDC.\n" ; return 1 ; }
>
>
>	#
>	# Run applications we want to test,
>	# with shell tracing enabled so that we can see which
>	# application prints a specific output
>	#
>	export KRB5_CONFIG
>
>	set -o xtrace
>
>	kdestroy -q -A
>	kinit "admin/admin@${config.realmname}" <<<$'tiger12maus\n'
>	kinit "test001@${config.realmname}" <<<$'tiger12maus\n'
>	klist -A
>
>	set +o xtrace
>	
>	#
>	# Tests done, terminate KDC and clean up
>	#
>	k1.terminate_kdc
>	
>	return 0
>}
>
>#
># start.
>#
>set -o nounset # complain if we use unset/undefined variables
>
>(( .sh.version >= 20140721 )) || \
>	print -u2 -f $"%s: Warning: Script requires ksh93v- or better.\n" "$0"
>
>set -o errexit # failure to load a builtin is fatal
>builtin cat
>builtin id
>builtin mkdir
>builtin rm
>set +o errexit
>
>main
>
># EOF.

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Attachments on bug 1150061: 951803