extras/hook-scripts: Set of changes for new samba share method.
New method of creating a share of gluster volume through samba eliminates the requirement of fuse mount and changes in fstab. glusterfs vfs plugin has to be specified as required vfs object. Path now is relative to the root of gluster volume. / signifies complete volume. Change-Id: I3d80452cd58513ef59d6a816c1ab62ebc3b76a62 BUG: 953694 Signed-off-by: Raghavendra Talur <rtalur@redhat.com> Reviewed-on: http://review.gluster.org/5247 Reviewed-by: José Rivera <jrivera@redhat.com> Tested-by: José Rivera <jrivera@redhat.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
This commit is contained in:
Raghavendra Talur
Vijay Bellur
parent
e216e2e6fc
commit
ac62c953e4
@ -1 +1 @@
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EXTRA_DIST = S29CTDBsetup.sh S30samba-start.sh S30samba-stop.sh
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EXTRA_DIST = S29CTDBsetup.sh S30samba-start.sh S30samba-stop.sh S30samba-set.sh
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107
extras/hook-scripts/S30samba-set.sh
Executable file
107
extras/hook-scripts/S30samba-set.sh
Executable file
@ -0,0 +1,107 @@
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#!/bin/bash
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#Need to be copied to hooks/<HOOKS_VER>/set/post/
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#TODO: All gluster and samba paths are assumed for fedora like systems.
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#Some efforts are required to make it work on other distros.
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#The preferred way of creating a smb share of a gluster volume has changed.
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#The old method was to create a fuse mount of the volume and share the mount
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#point through samba.
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#
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#New method eliminates the requirement of fuse mount and changes in fstab.
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#glusterfs_vfs plugin for samba makes call to libgfapi to access the volume.
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#
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#This hook script enables user to enable or disable smb share by volume set
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#option. Keys "user.cifs" and "user.smb" both are valid, but user.smb is
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#preferred.
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PROGNAME="Ssamba-set"
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OPTSPEC="volname:"
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VOL=
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enable_smb=""
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function parse_args () {
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ARGS=$(getopt -l $OPTSPEC -o "o" -name $PROGNAME $@)
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eval set -- "$ARGS"
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while true; do
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case $1 in
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--volname)
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shift
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VOL=$1
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;;
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*)
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shift
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for pair in $@; do
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read key value < <(echo "$pair" | tr "=" " ")
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case "$key" in
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"user.cifs")
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enable_smb=$value
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;;
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"user.smb")
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enable_smb=$value
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;;
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*)
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;;
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esac
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done
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shift
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break
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;;
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esac
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shift
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done
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}
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function add_samba_share () {
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volname=$1
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STRING="\n[gluster-$volname]\n"
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STRING+="comment = For samba share of volume $volname\n"
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STRING+="vfs objects = glusterfs\n"
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STRING+="glusterfs:volume = $volname\n"
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STRING+="path = /\n"
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STRING+="read only = no\n"
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STRING+="guest ok = yes\n"
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printf "$STRING" >> /etc/samba/smb.conf
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}
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function sighup_samba () {
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pid=`cat /var/run/smbd.pid`
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if [ "$pid" != "" ]
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then
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kill -HUP "$pid";
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else
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/etc/init.d/smb start
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fi
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}
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function del_samba_share () {
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volname=$1
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cp /etc/samba/smb.conf /tmp/smb.conf
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sed -i "/gluster-$volname/,/^$/d" /tmp/smb.conf &&\
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cp /tmp/smb.conf /etc/samba/smb.conf
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}
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function is_volume_started () {
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volname=$1
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echo "$(grep status /var/lib/glusterd/vols/"$volname"/info |\
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cut -d"=" -f2)"
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}
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parse_args $@
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if [ "0" = $(is_volume_started "$VOL") ]; then
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exit 0
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fi
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if [ "$enable_smb" = "enable" ]; then
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add_samba_share $VOL
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sighup_samba
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elif [ "$enable_smb" = "disable" ]; then
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del_samba_share $VOL
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sighup_samba
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fi
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@ -1,12 +1,28 @@
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#!/bin/bash
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#Need to be copied to hooks/<HOOKS_VER>/start/post
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#TODO: All gluster and samba paths are assumed for fedora like systems.
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#Some efforts are required to make it work on other distros.
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#The preferred way of creating a smb share of a gluster volume has changed.
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#The old method was to create a fuse mount of the volume and share the mount
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#point through samba.
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#
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#New method eliminates the requirement of fuse mount and changes in fstab.
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#glusterfs_vfs plugin for samba makes call to libgfapi to access the volume.
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#
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#This hook script automagically creates shares for volume on every volume start
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#event by adding the entries in smb.conf file and sending SIGHUP to samba.
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#
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#In smb.conf:
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#glusterfs vfs plugin has to be specified as required vfs object.
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#Path value is relative to the root of gluster volume;"/" signifies complete
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#volume.
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PROGNAME="Ssamba-start"
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OPTSPEC="volname:,mnt:"
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OPTSPEC="volname:"
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VOL=
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#FIXME: glusterd hook interface will eventually provide mntpt prefix as
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# command line arg
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MNT_PRE="/mnt/samba"
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function parse_args () {
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ARGS=$(getopt -l $OPTSPEC -name $PROGNAME $@)
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@ -18,10 +34,6 @@ function parse_args () {
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shift
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VOL=$1
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;;
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--mnt)
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shift
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MNT_PRE=$1
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;;
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*)
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shift
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break
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@ -31,32 +43,47 @@ function parse_args () {
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done
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}
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function add_samba_export () {
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function add_samba_share () {
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volname=$1
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mnt_pre=$2
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mkdir -p $mnt_pre/$volname && \
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printf "\n[gluster-$volname]\ncomment=For samba export of volume $volname\npath=$mnt_pre/$volname\nread only=no\nguest ok=yes\n" >> /etc/samba/smb.conf
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}
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function mount_volume () {
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volname=$1
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mnt_pre=$2
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#Mount shouldn't block on glusterd to fetch volfile, hence the 'bg'
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mount -t glusterfs `hostname`:$volname $mnt_pre/$volname &
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STRING="\n[gluster-$volname]\n"
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STRING+="comment = For samba share of volume $volname\n"
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STRING+="vfs objects = glusterfs\n"
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STRING+="glusterfs:volume = $volname\n"
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STRING+="path = /\n"
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STRING+="read only = no\n"
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STRING+="guest ok = yes\n"
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printf "$STRING" >> /etc/samba/smb.conf
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}
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function sighup_samba () {
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pid=`cat /var/run/smbd.pid`
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if [ $pid != "" ]
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if [ "$pid" != "" ]
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then
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kill -HUP $pid;
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kill -HUP "$pid";
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else
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/etc/init.d/smb condrestart
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fi
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}
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function get_smb () {
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volname=$1
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uservalue=
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usercifsvalue=$(grep user.cifs /var/lib/glusterd/vols/"$volname"/info |\
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cut -d"=" -f2)
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usersmbvalue=$(grep user.smb /var/lib/glusterd/vols/"$volname"/info |\
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cut -d"=" -f2)
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if [[ $usercifsvalue = "disable" || $usersmbvalue = "disable" ]]; then
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uservalue="disable"
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fi
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echo "$uservalue"
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}
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parse_args $@
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add_samba_export $VOL $MNT_PRE
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mount_volume $VOL $MNT_PRE
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if [ $(get_smb "$VOL") = "disable" ]; then
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exit 0
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fi
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add_samba_share $VOL
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sighup_samba
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@ -1,11 +1,23 @@
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#! /bin/bash
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#Need to be copied to hooks/<HOOKS_VER>/stop/post
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#Need to be copied to hooks/<HOOKS_VER>/stop/pre
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#TODO: All gluster and samba paths are assumed for fedora like systems.
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#Some efforts are required to make it work on other distros.
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#The preferred way of creating a smb share of a gluster volume has changed.
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#The old method was to create a fuse mount of the volume and share the mount
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#point through samba.
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#
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#New method eliminates the requirement of fuse mount and changes in fstab.
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#glusterfs_vfs plugin for samba makes call to libgfapi to access the volume.
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#
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#This hook script automagically removes shares for volume on every volume stop
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#event by removing the volume related entries(if any) in smb.conf file.
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PROGNAME="Ssamba-stop"
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OPTSPEC="volname:,mnt:"
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OPTSPEC="volname:"
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VOL=
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#FIXME: gluster will eventually pass mnt prefix as command line argument
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MNT_PRE="/mnt/samba"
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function parse_args () {
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ARGS=$(getopt -l $OPTSPEC -name $PROGNAME $@)
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@ -17,11 +29,6 @@ function parse_args () {
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shift
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VOL=$1
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;;
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--mnt)
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shift
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MNT_PRE=$1
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echo $1
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;;
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*)
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shift
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break
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@ -31,19 +38,13 @@ function parse_args () {
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done
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}
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function del_samba_export () {
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function del_samba_share () {
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volname=$1
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cp /etc/samba/smb.conf /tmp/smb.conf
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sed -i "/gluster-$volname/,/^$/d" /tmp/smb.conf &&\
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cp /tmp/smb.conf /etc/samba/smb.conf
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}
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function umount_volume () {
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volname=$1
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mnt_pre=$2
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umount -l $mnt_pre/$volname
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}
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function sighup_samba () {
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pid=`cat /var/run/smbd.pid`
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if [ $pid != "" ]
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@ -55,6 +56,5 @@ function sighup_samba () {
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}
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parse_args $@
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del_samba_export $VOL
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umount_volume $VOL $MNT_PRE
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del_samba_share $VOL
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sighup_samba
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