build.sh

   1 #!/bin/bash
   2
   3 set -e
   4
   5 # where the boot cd build config files are stored (and certificats/keys)
   6 CONFIGURATIONS_DIR=configurations/
   7
   8 # where built files are stored
   9 BUILD_DIR=build/
  10
  11 BOOTCD_VERSION="3.0-beta0.4"
  12 FULL_VERSION_STRING="PlanetLab BootCD"
  13 OUTPUT_IMAGE_NAME='PlanetLab-BootCD'
  14
  15 SYSLINUX_SRC=sources/syslinux-2.11.tar.bz2
  16
  17 BOOTCD_YUM_GROUP=BootCD
  18
  19 CDRECORD_FLAGS="-v -dao"
  20
  21 CONF_FILES_DIR=conf_files/
  22
  23 # size of the ram disk in MB
  24 RAMDISK_SIZE=64
  25
  26 # the bytes per inode ratio (the -i value in mkfs.ext2) for the ramdisk
  27 INITRD_BYTES_PER_INODE=1024
  28
  29
  30 function usage()
  31 {
  32     echo "Usage: build.sh <action> [<configuration>]"
  33     echo "Action: build burn clean"
  34     echo
  35     echo "If configuration is missing, 'default' is loaded"
  36     exit
  37 }
  38
  39
  40 function build_cdroot()
  41 {
  42     if [ -f $CD_ROOT/.built ]; then
  43         echo "cd root already built, skipping"
  44         return
  45     fi
  46
  47     clean
  48
  49     mkdir -p $CD_ROOT/dev/pts
  50     mkdir -p $CD_ROOT/proc
  51     mkdir -p $CD_ROOT/etc
  52
  53     echo "copy fstab and mtab"
  54     cp -f $CONF_FILES_DIR/fstab $CD_ROOT/etc/
  55     cp -f $CONF_FILES_DIR/mtab $CD_ROOT/etc/
  56
  57     echo "setup rpm to install only en_US locale and no docs"
  58     mkdir -p $CD_ROOT/etc/rpm
  59     cp -f $CONF_FILES_DIR/macros $CD_ROOT/etc/rpm
  60
  61     echo "initialize rpm db"
  62     mkdir -p $CD_ROOT/var/lib/rpm
  63     rpm --root $CD_ROOT --initdb
  64
  65     echo "install boot cd base rpms"
  66     yum -c yum.conf --installroot=$CD_ROOT -y groupinstall $BOOTCD_YUM_GROUP
  67
  68     echo "checking to make sure rpms were installed"
  69     packages=`cat yumgroups.xml | grep packagereq | sed 's#<[^<]*>##g'`
  70     set +e
  71     for package in $packages; do
  72         echo "checking for package $package"
  73         chroot $CD_ROOT /bin/rpm -qi $package > /dev/null
  74         if [[ "$?" -ne 0 ]]; then
  75             echo "package $package was not installed in the cd root."
  76             echo "make sure it exists in the yum repository."
  77             exit 1
  78         fi
  79     done
  80     set -e
  81
  82     echo "removing unneccessary build files"
  83     (cd $CD_ROOT/lib/modules && \
  84         find ./ -type d -name build -maxdepth 2 -exec rm -rf {} \;)
  85
  86     echo "setting up non-ssh authentication"
  87     mkdir -p $CD_ROOT/etc/samba
  88     chroot $CD_ROOT /usr/sbin/authconfig --nostart --kickstart \
  89         --enablemd5 --enableshadow
  90
  91     echo "setting root password"
  92     sed -i "s#root::#root:$ROOT_PASSWORD:#g" $CD_ROOT/etc/shadow
  93
  94     echo "relocate some large directories out of the root system"
  95     # get /var/lib/rpm out, its 12mb. create in its place a
  96     # symbolic link to /usr/relocated/var/lib/rpm
  97     mkdir -p $CD_ROOT/usr/relocated/var/lib/
  98     mv $CD_ROOT/var/lib/rpm $CD_ROOT/usr/relocated/var/lib/
  99     (cd $CD_ROOT/var/lib && ln -s ../../usr/relocated/var/lib/rpm rpm)
 100
 101     # get /lib/tls out
 102     mkdir -p $CD_ROOT/usr/relocated/lib
 103     mv $CD_ROOT/lib/tls $CD_ROOT/usr/relocated/lib/
 104     (cd $CD_ROOT/lib && ln -s ../usr/relocated/lib/tls tls)
 105
 106     echo "extracting syslinux, copying isolinux files to cd"
 107     mkdir -p $CD_ROOT/usr/isolinux/
 108     mkdir -p $BUILD_DIR/syslinux
 109     tar -C $BUILD_DIR/syslinux -xjvf $SYSLINUX_SRC
 110     find $BUILD_DIR/syslinux -name isolinux.bin \
 111         -exec cp -f {} $CD_ROOT/usr/isolinux/ \;
 112
 113     echo "moving kernel to isolinux directory"
 114     KERNEL=$CD_ROOT/boot/vmlinuz-*
 115     mv -f $KERNEL $CD_ROOT/usr/isolinux/kernel
 116
 117     echo "creating version files"
 118     echo "$FULL_VERSION_STRING" > $CD_ROOT/usr/isolinux/pl_version
 119     echo "$FULL_VERSION_STRING" > $CD_ROOT/pl_version
 120
 121     touch $CD_ROOT/.built
 122 }
 123
 124 function build_initrd()
 125 {
 126     echo "building initrd"
 127     rm -f $INITRD
 128     rm -f $INITRD.gz
 129
 130     echo "copy fstab and mtab"
 131     cp -f $CONF_FILES_DIR/fstab $CD_ROOT/etc/
 132     cp -f $CONF_FILES_DIR/mtab $CD_ROOT/etc/
 133
 134     echo "installing generic modprobe.conf"
 135     cp -f $CONF_FILES_DIR/modprobe.conf $CD_ROOT/etc/
 136
 137     echo "installing our own inittab and init scripts"
 138     cp -f $CONF_FILES_DIR/inittab $CD_ROOT/etc
 139     init_scripts="pl_sysinit pl_hwinit pl_netinit pl_validateconf pl_boot"
 140     for script in $init_scripts; do
 141         cp -f $CONF_FILES_DIR/$script $CD_ROOT/etc/init.d/
 142         chmod +x $CD_ROOT/etc/init.d/$script
 143     done
 144
 145     echo "setup basic networking files"
 146     cp -f $CONF_FILES_DIR/hosts $CD_ROOT/etc/
 147
 148     echo "copying sysctl.conf (fix tcp window scaling and broken routers)"
 149     cp -f $CONF_FILES_DIR/sysctl.conf $CD_ROOT/etc/
 150
 151     echo "setup default network conf file"
 152     mkdir -p $CD_ROOT/usr/boot
 153     cp -f $CONF_FILES_DIR/default-net.cnf $CD_ROOT/usr/boot/
 154
 155     echo "setup boot server configuration"
 156     cp -f $CURRENT_CONFIG_DIR/$PRIMARY_SERVER_CERT $CD_ROOT/usr/boot/cacert.pem
 157     cp -f $CURRENT_CONFIG_DIR/$PRIMARY_SERVER_GPG $CD_ROOT/usr/boot/pubring.gpg
 158     echo "$PRIMARY_SERVER" > $CD_ROOT/usr/boot/boot_server
 159     echo "$PRIMARY_SERVER_PORT" > $CD_ROOT/usr/boot/boot_server_port
 160     echo "$PRIMARY_SERVER_PATH" > $CD_ROOT/usr/boot/boot_server_path
 161
 162     echo "setup backup boot server configuration"
 163     mkdir -p $CD_ROOT/usr/boot/backup
 164     cp -f $CURRENT_CONFIG_DIR/$BACKUP_SERVER_CERT \
 165         $CD_ROOT/usr/boot/backup/cacert.pem
 166     cp -f $CURRENT_CONFIG_DIR/$BACKUP_SERVER_GPG \
 167         $CD_ROOT/usr/boot/backup/pubring.gpg
 168     echo "$BACKUP_SERVER" > $CD_ROOT/usr/boot/backup/boot_server
 169     echo "$BACKUP_SERVER_PORT" > $CD_ROOT/usr/boot/backup/boot_server_port
 170     echo "$BACKUP_SERVER_PATH" > $CD_ROOT/usr/boot/backup/boot_server_path
 171
 172     echo "copying old boot cd directory bootme (TEMPORARY)"
 173     cp -r bootme_old $CD_ROOT/usr/bootme
 174     echo "$FULL_VERSION_STRING" > $CD_ROOT/usr/bootme/ID
 175     echo "$PRIMARY_SERVER" > $CD_ROOT/usr/bootme/BOOTSERVER
 176     echo "$PRIMARY_SERVER" > $CD_ROOT/usr/bootme/BOOTSERVER_IP
 177     echo "$PRIMARY_SERVER_PORT" > $CD_ROOT/usr/bootme/BOOTPORT
 178
 179     echo "forcing lvm to make lvm1 partitions (TEMPORARY)"
 180     cp -f $CONF_FILES_DIR/lvm.conf $CD_ROOT/etc/lvm/
 181
 182     echo "copying isolinux configuration files"
 183     cp -f $CONF_FILES_DIR/isolinux.cfg $CD_ROOT/usr/isolinux/
 184     echo "$FULL_VERSION_STRING" > $CD_ROOT/usr/isolinux/message.txt
 185
 186     echo "writing /etc/issue"
 187     echo "$FULL_VERSION_STRING" > $CD_ROOT/etc/issue
 188     echo "Kernel \r on an \m" >> $CD_ROOT/etc/issue
 189     echo "" >> $CD_ROOT/etc/issue
 190     echo "" >> $CD_ROOT/etc/issue
 191
 192     if [[ ! -z "$NODE_CONFIGURATION_FILE" ]]; then
 193         echo "Copying node configuration file to cd"
 194         cp -f $CURRENT_CONFIG_DIR/$NODE_CONFIGURATION_FILE \
 195             $CD_ROOT/usr/boot/plnode.txt
 196     fi
 197
 198     echo "making the isolinux initrd kernel command line match rd size"
 199     let INITRD_SIZE_KB=$(($RAMDISK_SIZE * 1024))
 200     sed -i "s#ramdisk_size=0#ramdisk_size=$INITRD_SIZE_KB#g" \
 201         $CD_ROOT/usr/isolinux/isolinux.cfg
 202
 203     echo "building pcitable for hardware detection"
 204     pci_map_file=`find $CD_ROOT/lib/modules/ -name modules.pcimap | head -1`
 205     module_dep_file=`find $CD_ROOT/lib/modules/ -name modules.dep | head -1`
 206     pci_table=$CD_ROOT/usr/share/hwdata/pcitable
 207     ./scripts/rewrite-pcitable.py $module_dep_file $pci_map_file $pci_table \
 208         $CD_ROOT/etc/pl_pcitable
 209
 210     dd if=/dev/zero of=$INITRD bs=1M count=$RAMDISK_SIZE
 211     mkfs.ext2 -F -m 0 -i $INITRD_BYTES_PER_INODE $INITRD
 212     mkdir -p $INITRD_MOUNT
 213     mount -o loop,rw $INITRD $INITRD_MOUNT
 214
 215     echo "copy all files except usr to ramdisk"
 216     pushd .
 217     cd $CD_ROOT
 218     find . -path ./usr -prune -o -print | cpio -p -d -u $INITRD_MOUNT
 219     popd
 220
 221     umount $INITRD_MOUNT
 222     rmdir $INITRD_MOUNT
 223
 224     echo "compressing ramdisk"
 225     gzip $INITRD
 226 }
 227
 228 function build()
 229 {
 230     # build base image via yum
 231     build_cdroot
 232
 233     # always build/rebuild initrd
 234     build_initrd
 235
 236     rm -f $ISO
 237     mkisofs -o $ISO -R -allow-leading-dots -J -r -b isolinux/isolinux.bin \
 238         -c isolinux/boot.cat -no-emul-boot -boot-load-size 4 -boot-info-table \
 239         $CD_ROOT/usr
 240 }
 241
 242 function burn()
 243 {
 244     cdrecord $CDRECORD_FLAGS -data $ISO
 245 }
 246
 247 function clean()
 248 {
 249     rm -rf $CD_ROOT
 250     rm -rf $BUILD_DIR/syslinux
 251     rm -rf $BUILD_DIR/$INITRD_MOUNT
 252     rm -rf $BUILD_DIR
 253     rm -f $ISO
 254     rmdir --ignore-fail-on-non-empty build
 255 }
 256
 257 if [[ "$1" == "clean" || "$1" == "burn" || "$1" == "build" ]]; then
 258     action=$1
 259     configuration=$2
 260
 261     if [[ -z "$configuration" ]]; then
 262         configuration=default
 263     fi
 264
 265     echo "Loading configuration $configuration"
 266     CURRENT_CONFIG_DIR=$CONFIGURATIONS_DIR/$configuration
 267     . $CURRENT_CONFIG_DIR/configuration
 268
 269     # setup vars for this configuration
 270
 271     # version string for this build
 272     if [[ ! -z "$EXTRA_VERSION" ]]; then
 273         FULL_VERSION_STRING="$FULL_VERSION_STRING $EXTRA_VERSION"
 274     fi
 275     FULL_VERSION_STRING="$FULL_VERSION_STRING $BOOTCD_VERSION"
 276
 277     # destination image
 278     if [[ ! -z "$EXTRA_VERSION" ]]; then
 279         OUTPUT_IMAGE_NAME="$OUTPUT_IMAGE_NAME-$EXTRA_VERSION"
 280     fi
 281     OUTPUT_IMAGE_NAME="$OUTPUT_IMAGE_NAME-$BOOTCD_VERSION"
 282
 283     # setup build directories
 284     BUILD_DIR=build/$configuration
 285     mkdir -p $BUILD_DIR
 286     ISO=$BUILD_DIR/`echo $OUTPUT_IMAGE_NAME | sed -e "s/%version/$BOOTCD_VERSION/"`.iso
 287
 288     CD_ROOT=`pwd`/$BUILD_DIR/cdroot
 289     mkdir -p $CD_ROOT
 290
 291     # location of the uncompressed ramdisk image
 292     INITRD=$CD_ROOT/usr/isolinux/initrd
 293
 294     # temporary mount point for rd
 295     INITRD_MOUNT=`pwd`/$BUILD_DIR/rd
 296
 297
 298     case $action in
 299         build )
 300             echo "Proceeding with building $DESCRIPTION"
 301             build;;
 302
 303         clean )
 304             echo "Removing built files for $DESCRIPTION"
 305             clean;;
 306
 307         burn )
 308             echo "Burning $DESCRIPTION"
 309             burn;;
 310     esac
 311 else
 312     usage
 313 fi
 314