Page MenuHomeClusterLabs Projects
Files F2822385

geo_attr.sh
No OneTemporary
Actions

geo_attr.sh
View Options

#
# This program is free software; you can redistribute it and/or modify
# it under the terms of version 2 of the GNU General Public License as
# published by the Free Software Foundation.
#
# This program is distributed in the hope that it would be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
#
# Further, this software is distributed without any warranty that it is
# free of the rightful claim of any third person regarding infringement
# or the like. Any license provided herein, whether implied or
# otherwise, applies only to this software file. Patent licenses, if
# any, provided herein do not apply to combinations of this program with
# other software, or any other product whatsoever.
#
# You should have received a copy of the GNU General Public License along
# with this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
#
# This file is part of the booth project and contains /bin/sh
# code to support GEO attributes
# USAGE
#
# To use this for updating GEO attributes just follow the
# instructions below.
# Source this file in your OCF RA script:
#
## . ${OCF_ROOT}/lib/booth/geo_attr.sh
# 1) meta-data
#
# geo_attr_meta_data prints descriptions of three parameters.
# Best to invoke it just before printing "</parameters>". For
# instance:
#
## cat <<EOF
## <?xml version="1.0"?>
## ...
## <parameters>
## ...
## `geo_attr_meta_data`
## </parameters>
## ...
## EOF
# 2) validation (validate-all)
#
# Invoke geo_attr_validate_all to test the environment:
#
## if ! geo_attr_validate_all; then
## return $OCF_ERR_INSTALL
## fi
# 3) Attribute updating
#
# Put something like the following code after the RA updated the
# remote site state (e.g. data replication):
#
## if [ -n "$OCF_RESKEY_booth_ticket" ]; then
## if geo_attr_geo_attr $outcome; then
## # success!
## else
## # failed to set the attribute
## # appropriate error was already logged
## # normally, more cannot be done at this point
## # because updating GEO attributes is
## # essentially a best effort operation
## fi
## fi
#
# The outcome variable is a boolean.
# It should reflect the outcome of the operation to update
# data at the site (set to "0" for failure, anything else for
# success).
# 4) Site name (optional)
#
# We use the special value 'other' to specify the site where the
# attribute is to be updated. That should cover the majority of
# GEO clusters. In case your setup has more than two sites, then
# provide a function named get_site_name which should print the
# appropriate site name (as specified in booth.conf too) to
# stdout.
#
DEFAULT_BOOTH_CONF="/etc/booth/booth.conf"
: ${OCF_RESKEY_booth_config:=$DEFAULT_BOOTH_CONF}
geo_attr_meta_data() {
cat <<END
<parameter name="booth_ticket">
<longdesc lang="en">
Booth ticket. Need to define this to activate GEO attribute
updating. See also the booth_config and geo_attribute parameters.
</longdesc>
<shortdesc lang="en">Booth ticket</shortdesc>
<content type="string" default="" />
</parameter>
<parameter name="booth_config">
<longdesc lang="en">
Booth configuration name (or configuration filename) to use.
</longdesc>
<shortdesc lang="en">BOOTH configuration file</shortdesc>
<content type="string" default="$DEFAULT_BOOTH_CONF" />
</parameter>
<parameter name="geo_attribute">
<longdesc lang="en">
Attribute name. If not specified, we'll get the name from the
first "attr-prereq" definition for the given ticket. This
normally needs to be used only in case there are multiple
"attr-prereq" directives for the ticket.
</longdesc>
<shortdesc lang="en">GEO attribute</shortdesc>
<content type="string" default="" />
</parameter>
END
}
geo_attr_get_attr() {
local tkt cnf attr
tkt=$OCF_RESKEY_booth_ticket
cnf=$OCF_RESKEY_booth_config
attr=$OCF_RESKEY_geo_attribute
awk -v attr="$attr" '
n && /^[[:space:]]*attr-prereq = auto .* eq / {
if (attr == "" || attr == $4) {
print $4,$6; exit
}
}
n && (/^$/ || /^ticket.*/) {exit}
/^ticket.*'$tkt'/ {n=1}
' $cnf
}
# arguments:
# $1: 0 reset the attribute
# != 0 set the attribute
#
geo_attr_geo_attr() {
local val site
val=$1
set -- `geo_attr_get_attr`
if test z"`command -v get_site_name`" = z"get_site_name"; then
site=`get_site_name`
else
site="other"
fi
if [ "$val" = "0" ]; then
geostore delete -s $site $1 >/dev/null 2>&1
else
geostore set -s $site $1 $2
fi
}
geo_attr_read_attr() {
local site
set -- `geo_attr_get_attr`
if test z"`command -v get_site_name`" = z"get_site_name"; then
site=`get_site_name`
else
site="other"
fi
geostore get -s $site $1
}
# test the environment for geo_attr
#
geo_attr_validate_all() {
if [ -z "$OCF_RESKEY_booth_ticket" ]; then
return 0
fi
if ! test -f "$OCF_RESKEY_booth_config"; then
ocf_log err "booth configuration $OCF_RESKEY_booth_config doesn't exist"
return 1
fi
if ! grep -qs "^ticket[[:space:]]*=[[:space:]]*\"$OCF_RESKEY_booth_ticket\"" $OCF_RESKEY_booth_config; then
ocf_log err "ticket $OCF_RESKEY_booth_ticket not found in $OCF_RESKEY_booth_config"
return 1
fi
set -- `geo_attr_get_attr`
if [ $# -eq 0 ]; then
ocf_log err "no attr-prereq defined in $OCF_RESKEY_booth_ticket"
return 1
fi
return 0
}

File Metadata

Mime Type
text/plain
Expires
Sat, Jan 25, 5:38 AM (14 h, 16 s)
Storage Engine
blob
Storage Format
Raw Data
Storage Handle
1223313
Default Alt Text
geo_attr.sh (5 KB)

Event Timeline