[debian-lan-devel] [debian-lan] 01/01: Improve the setup of the chroots for FAI and diskless machines.

[Andreas B. Mundt]

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andi pushed a commit to branch wheezy
in repository debian-lan.

commit f27b882abdb23e685221640c730dcbbf6adfd55d
Author: Andreas B. Mundt <andi at debian.org>
Date:   Sat Jun 14 14:39:23 2014 +0200

    Improve the setup of the chroots for FAI and diskless machines.
    
    Add the possibility to update the chroots.
    
    (cherry picked (modified) from commit 56bc27de5e7f5d8591b561e87f0a52980186cf96)
---
 fai/config/files/etc/rc.local/FAISERVER | 66 +++++++++++++++++----------------
 1 file changed, 34 insertions(+), 32 deletions(-)

diff --git a/fai/config/files/etc/rc.local/FAISERVER b/fai/config/files/etc/rc.local/FAISERVER
index 51d7f4d..8a51dd0 100755
--- a/fai/config/files/etc/rc.local/FAISERVER
+++ b/fai/config/files/etc/rc.local/FAISERVER
@@ -28,7 +28,12 @@ check_network () {
 setup_nfsroot () {
     echo "Creating the nfsroot for FAI."
     trap "rc=$?; rm -rf $NFSROOT; exit $rc" ERR SIGHUP SIGINT SIGTERM
-    fai-setup -e -v -l
+    if [ ! -d $NFSROOT ] ; then
+        fai-setup -e -v -l
+    else
+        ## Update nfsroot:
+        fai-make-nfsroot -v -l -k
+    fi
     trap - ERR SIGHUP SIGINT SIGTERM
     ## Create pxelinux boot configuration for workstationXX.
     ## The seq range is sed from the corresponding variable
@@ -55,16 +60,22 @@ setup_nfsroot () {
 setup_diskless () {
     export LC_ALL=C
     trap "rc=$?; rm -rf $DLROOT; exit $rc" ERR SIGHUP SIGINT SIGTERM
-    fai -vNu diskless dirinstall $DLROOT/filesystem.dir/
+    if [ ! -d $DLROOT ] ; then
+        fai -vNu diskless dirinstall $DLROOT/filesystem.dir/
+    else
+        chroot $DLROOT/filesystem.dir/ fai -vNu diskless softupdate
+    fi
     trap - ERR SIGHUP SIGINT SIGTERM
 
-    TEMPLATE=$TFTPROOT/pxelinux.cfg/diskless.tmpl
-    if [ ! -e $TEMPLATE ]; then
-        KERNEL=`basename $(ls $TFTPROOT/vmlinuz*)`
-        INITRD=`basename $(ls $TFTPROOT/initrd.img*)`
+    DL_TEMPLATE=$TFTPROOT/pxelinux.cfg/diskless.tmpl
+    if [ -e $DL_TEMPLATE ]; then
+        cp -v $DL_TEMPLATE ${DL_TEMPLATE}_$(date +%Y%m%d%H%M)
+    fi
+    KERNEL=`basename $(ls $TFTPROOT/vmlinuz*)`
+    INITRD=`basename $(ls $TFTPROOT/initrd.img*)`
 
-        echo "Creating template with $KERNEL and $INITRD."
-        cat > $TEMPLATE <<EOF
+    echo "Creating template with $KERNEL and $INITRD."
+    cat > $DL_TEMPLATE <<EOF
 # template for diskless
 default Debian-LAN/FAI Live System
 
@@ -72,9 +83,6 @@ label Debian-LAN/FAI Live System
 kernel $KERNEL
 append initrd=$INITRD ip=dhcp root=/dev/nfs nfsroot=/opt boot=live
 EOF
-    else
-        echo "The template $TEMPLATE exists already!"
-    fi
 
     ## Create pxelinux boot configuration for disklessXX.
     ## The seq range is sed from the corresponding variable
@@ -140,47 +148,41 @@ EOF
 ## Add missing plugins to munin, the line will be commented afterwards:
 munin-node-configure --shell 2>/dev/null | sh && sed -i "s%\(^munin-node-configure\)%\#\1%" $0
 
-## Setup nfsroot for FAI:
-if [ ! -d $NFSROOT ] ; then
-    cat <<EOF
+## Setup/update nfsroot for FAI:
+cat <<EOF
 ================================================================================
-The nfsroot for FAI may be created by executing $0.
+The nfsroot for FAI may be created/updated by executing $0.
 This can be done now, later or manually.
 Internet access is needed to download packages.
 If unanswered, this script will exit after $TIMEOUT seconds.
 
 EOF
-    read -e -t $TIMEOUT -n 1 -p "Install the nfsroot for FAI now? [y|N]: " inp
-    if [ "$inp" = "y" ] ; then
-        check_network
-        setup_nfsroot
-        setup_PXEinstaller
-    else
-        exit 0
-    fi
+read -e -t $TIMEOUT -n 1 -p "Install/update the nfsroot for FAI now? [y|N]: " inp
+if [ "$inp" = "y" ] ; then
+    check_network
+    setup_nfsroot
+    setup_PXEinstaller
 fi
 
 ## The following code is activated if diskless machines
 ## are to be served.  Do not change the following line:
 exit 0  ##DISKLESS_SERVER##
 
-## Setup chroot for diskless machines:
-if [ ! -d $DLROOT ] ; then
+if [ -d $NFSROOT ] ; then
+    ## Setup/update chroot for diskless machines:
     cat <<EOF
 ================================================================================
-To install the chroot for diskless clients execute:
-    export LC_ALL=C
-    fai -vNu diskless dirinstall $DLROOT/filesystem.dir/
-This can be done right now or manually.
+The chroot for diskless clients may be installed/updated.
+This can be done right now, later or manually by executing $0.
 If unanswered, this script will exit after $TIMEOUT seconds.
 
 EOF
-    read -e -t $TIMEOUT -n 1 -p "Install the chroot for diskless clients now? [y|N]: " inp
+    read -e -t $TIMEOUT -n 1 -p "Install/update the chroot for diskless clients now? [y|N]: " inp
     if [ "$inp" = "y" ] ; then
         check_network
         setup_diskless
         setup_PXEinstaller
-    else
-        exit 0
     fi
 fi
+
+exit 0

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