1 #!/usr/bin/ksh
  2 #
  3 # CDDL HEADER START
  4 #
  5 # The contents of this file are subject to the terms of the
  6 # Common Development and Distribution License (the License).
  7 # You may not use this file except in compliance with the License.
  8 #
  9 # You can obtain a copy of the license at usr/src/CDDL.txt
 10 # or http://www.opensolaris.org/os/licensing.
 11 # See the License for the specific language governing permissions
 12 # and limitations under the License.
 13 #
 14 # When distributing Covered Code, include this CDDL HEADER in each
 15 # file and include the License file at usr/src/CDDL.txt.
 16 # If applicable, add the following below this CDDL HEADER, with the
 17 # fields enclosed by brackets [] replaced with your own identifying
 18 # information: Portions Copyright [yyyy] [name of copyright owner]
 19 #
 20 # CDDL HEADER END
 21 #
 22 
 23 #
 24 # Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
 25 # Use is subject to license terms.
 26 
 27 # ident   "%Z%%M% %I%     %E% SMI"
 28 #
 29 # Method for the PostrgresSQL rolchanger agent. 
 30 #
 31 # This method is called by the GDS.
 32 #
 33 # It is started with options and one parameter:
 34 #
 35 #
 36 # $1 start, stop or validate.
 37 #
 38 
 39 MYNAME=`basename ${0}`
 40 MYDIR=`dirname ${0}`
 41 
 42 . ${MYDIR}/../etc/config
 43 . ${MYDIR}/../../lib/functions_static
 44 . ${MYDIR}/functions
 45 
 46 debug_message "Method: ${MYNAME} ${*} - Begin"
 47 ${SET_DEBUG}
 48 
 49 # get the options for gds 
 50 
 51 while getopts 'R:G:H:P:T:W:' opt
 52 do
 53         case "${opt}" in
 54                 R)      RESOURCE=${OPTARG};;
 55                 G)      RESOURCEGROUP=${OPTARG};;
 56                 H)      STB_HOST=${OPTARG};;
 57                 P)      STB_PARFILE=${OPTARG};;
 58                 T)      TRIGGER=${OPTARG};;
 59                 W)      WAIT=${OPTARG};;
 60                 *)      exit 1;;
 61         esac
 62 done
 63 
 64 # if no option is set ($OPTIND is 1 in this case) the following validation will fail.
 65 
 66 if [ ${OPTIND} -gt 1 ]
 67 then
 68         shift $((${OPTIND} - 1))
 69 fi
 70 
 71 # set some generic variables
 72 
 73 LOGFILE=/var/tmp/${RESOURCE}_logfile
 74 
 75 case ${1} in
 76 start)
 77 
 78         # start the rolechanger for PostgreSQL
 79 
 80         # touch a "lockfile" to prevent a a remote PostgreSQL to start in primary mode 
 81         # after the rolchanger starts his work.
 82 
 83         /usr/bin/touch /tmp/${RESOURCE}_rolechg.lck
 84         # exit from start, if the options are wrong
 85 
 86         validate_options
 87         rc_val=${?}
 88         if [ ${rc_val} -ne 0 ]
 89         then
 90                 terminate ${1} ${rc_val}
 91         fi
 92         
 93         ${RM} ${LOGFILE} 2>/dev/null
 94         
 95         # check the content of the options 
 96 
 97         if validate
 98         then
 99 
100                 start_rolechg
101                 rc_val=${?}
102                 
103                 if [ ${rc_val} -eq 0 ]
104                 then
105 
106                         # remove the rolechangers "lockfile"
107 
108                         ${RM} /tmp/${RESOURCE}_rolechg.lck
109 
110                         log_message notice "start_command rc<${rc_val}>"
111                         debug_message "Method: ${MYNAME} - End (Exit 0)"
112                 else
113                         log_message err "start_command rc<${rc_val}>"
114                 fi
115         else
116                 debug_message "Method: ${MYNAME} - End (Exit 1)"
117                 rc_val=1
118         fi;;
119 
120 probe)
121 
122         # Probe the rolechanger for PostgreSQL
123 
124         # This is a placeholder for future extentionto avoid reregistration.
125         # It will always return 0 at the current point in time.
126 
127         rc_val=0;;
128 
129 stop)
130 
131         # stop the rolechanger for PostgreSQL
132 
133         # exit from stop, if the options are wrong
134 
135 
136         validate_options
137         rc_val=${?}
138         if [ ${rc_val} -ne 0 ]
139         then
140                 terminate ${1} ${rc_val}
141         fi
142 
143         ${RM} ${LOGFILE} 2>/dev/null
144 
145         stop_rolechg
146         rc_val=${?}
147         
148         if [ "${rc_val}" -eq 0 ]
149         then
150                 log_message notice "stop_command rc<${rc_val}>"
151         else
152                 log_message err "stop_command rc<${rc_val}>"
153         fi
154         rc_val=0;;
155 
156 validate)
157 
158         # validate the parameters for application PostgreSQL
159 
160         validate_options
161         rc_val=${?}
162         if [ ${rc_val} -ne 0 ]
163         then
164                 terminate ${1} ${rc_val}
165         fi
166         
167         ${RM} ${LOGFILE} 2>/dev/null
168         
169         if validate
170         then
171                 rc_val=0
172         else
173                 rc_val=1
174         fi;;
175         
176 esac
177 
178 # terminate with the right return code, either with an smf specific or the gds/zsh based
179 # return code
180 
181 debug_message "Method: ${MYNAME} ${*} - End terminating"
182 terminate ${1} ${rc_val}