1

#!/bin/bash

     2

     3

### Initialize 

     4

set -u

     5

set -e

     6

     7

TESTING=

     8

     9

DO_SHOWSPEC=y

    10

DO_VIRTINSTALL=

    11

    12

scripts=$(dirname $0)/scripts

    13

. $scripts/lib.sh

    14

    15

### Command-line input

    16

## Command-line options

    17

function _help () {

    18

    cat <<END

    19

Usage: $1 [options] <name> [param=value [...]]

    20

    21

Options:

    22

    -h      Show this help text

    23

    24

    -D      Debug

    25

    -v      Verbose

    26

    -q      Quiet

    27

    28

    -N      Mock command execution

    29

    -P      Skip command prompts

    30

    31

    -I      Do a virt-install

    32

    33

    -T      Just testing..

    34

    35

Parameters are given as:

    36

    37

    name=value-{FOO}

    38

    39

END

    40

}

    41

    42

while getopts "hDvqNPTI" opt; do

    43

    case "$opt" in

    44

        h)

    45

            _help $0

    46

    47

            exit 0

    48

            ;;

    49

    50

        D)

    51

            LOG_DEBUG=y

    52

            LOG_CMD=y

    53

    54

            ;;

    55

    56

        v)

    57

            LOG_CMD=y

    58

    59

            log_debug "log: Commands"

    60

            ;;

    61

    62

        q)

    63

            LOG_CMD=

    64

            LOG_INFO=

    65

            DO_SHOWSPEC=

    66

    67

            log_debug "log: Quiet"

    68

            ;;

    69

    70

        N)

    71

            log_info "Mock-executing commands (this will break functionality..)"

    72

    73

            CMD_MOCK=y

    74

            ;;

    75

    76

        P)

    77

            log_info "Skipping command confirmations"

    78

    79

            CMD_PROMPT=

    80

            ;;

    81

    82

        T)

    83

            log_info "Just testing.."

    84

    85

            TESTING=y

    86

            ;;

    87

    88

        I)

    89

            log_info "Do virt-install"

    90

    91

            DO_VIRTINSTALL=y

    92

            ;;

    93

        ?)

    94

            _help $0

    95

    96

            exit 1

    97

            ;;

    98

    esac

    99

done

   100

   101

   102

# forget them

   103

[ $OPTIND -gt 1 ] && shift $(( $OPTIND - 1 ))

   104

   105

## Command-line arguments

   106

# Name

   107

[ -z $1 ] && die "Machine name must be given as first argument"

   108

   109

opt_name="$1"; shift

   110

   111

# Defaults

   112

function define_opt () {

   113

    local name=$1

   114

    local value=${2:-}

   115

   116

    log_debugf "%-20s = %s" $name "$value"

   117

    eval "opt_${name}=${value}"

   118

}

   119

   120

function resolve_name () {

   121

    local name=$1

   122

    local out=$(dig +short $name)

   123

   124

    [ -z "$out" ] && die "Hostname lookup failed: $name"

   125

   126

    echo $out

   127

}

   128

   129

define_opt  ram         1G

   130

define_opt  cpus        2

   131

define_opt  os          debiansqueeze

   132

define_opt  disk_size   10G

   133

define_opt  disk_vg     pvl

   134

define_opt  disk_lv     $opt_name

   135

define_opt  disk_bus    virtio

   136

define_opt  guest_disk  /dev/vda

   137

define_opt  hostname    $opt_name

   138

define_opt  bridge      br-lan

   139

define_opt  dns_domain  paivola.fi

   140

define_opt  ip          

   141

define_opt  puppet      

   142

define_opt  puppet_master   puppet

   144

   145

log_info "Processing ${#@} parameters:"

   146

for param in "$@"; do

   147

    name=${param%=*}

   148

    value=${param##*=}

   149

   150

    # evaluate

   151

    value=$(expand_line "$value")

   152

   153

    define_opt ${name} "${value}"

   154

done

   155

   156

# resolve defaults

   157

if [ -z $opt_ip ]; then

   158

    define_opt  ip          $(resolve_name ${opt_name}.${opt_dns_domain})

   159

fi

   160

   161

### Virtual machine config

   162

## libvirt guest info

   163

# Name

   164

GUEST_NAME=$opt_name

   165

   166

# Basic params

   167

GUEST_RAM=$opt_ram

   168

GUEST_VCPUS=$opt_cpus

   169

   170

# OS variant (for virt-install)

   171

GUEST_OS_VARIANT=$opt_os

   172

   173

## Disk

   174

# Size of LV to create

   175

DISK_SIZE=$opt_disk_size

   176

   177

# LVM vg to use

   178

DISK_VG=$opt_disk_vg

   179

   180

# LVM lv to use

   181

DISK_NAME=$opt_disk_lv

   182

   183

# Path to disk block device

   184

DISK_PATH=/dev/mapper/${DISK_VG}-${DISK_NAME}

   185

GUEST_DISK_BUS=$opt_disk_bus

   186

   196

### Preseed content

   197

GUEST_DISK=$opt_guest_disk

   198

   199

## Network

   200

# Network configuration, for /etc/network/interfaces

   201

NET_DOMAIN=paivola.fi

   202

NET_HOSTNAME=$opt_hostname

   203

NET_BRIDGE=$opt_bridge

   204

NET_IPADDR=$opt_ip

   205

NET_NETMASK=255.255.255.0

   206

NET_GATEWAY=194.197.235.1

   207

NET_NAMESERVERS=( 194.197.235.210 194.197.235.252 )

   208

   209

## Clock/time

   210

TIME_ZONE='Europe/Helsinki'

   211

   212

# only used during install, not stored in target

   213

TIME_NTP_SERVER=ntp.paivola.fi                      # XXX: harcoded

   214

   215

## User account

   216

function getent_user_attr () {

   217

    local user=$1

   218

    local db=$2

   219

    local attr=$3

   220

   221

    line=$(getent $db $user) || die "Unable to read $db database for $user"

   222

   223

    echo "$line" | cut -d ':' -f $attr

   224

}

   225

function user_fullname () {

   226

    local user=$1

   227

   228

    getent_user_attr $user passwd 5

   229

}

   230

function user_shadow () {

   231

    local user=$1

   232

   233

    if [ $UID -eq 0 ]; then

   234

        log_debug "Get user password from shadow: $user"

   235

        getent_user_attr $user shadow 2

   236

    else

   237

        echo -n "Install target login ($USER_NAME) " >&2

   238

        mkpasswd -m sha-512

   239

    fi

   240

}

   241

   242

# XXX: hardcoded

   243

USER_CREATE='true'

   244

USER_NAME=$USER

   245

USER_FULLNAME=$(user_fullname $USER)

   246

USER_SHADOW=$(user_shadow $USER)

   247

USER_GROUPS=( cdrom sudo adm )

   248

   249

## Misc

   250

PACKAGE_INCLUDES=( sudo screen vim )

   251

PRESEED_LATE_COMMANDS=( )

   253

PRESEED_INCLUDES=( 'passwords.cfg' 'host.cfg' )

   254

   264

   265

### Extra

   266

## Puppet

   267

if [ $opt_puppet ]; then

   268

    log_info "Puppetizing preseed"

   269

   270

    PUPPET_PACKAGES=( puppet )

   271

    PUPPET_COMMANDS=( \

   272

#        "in-target sed -i 's/START=no/START=yes/' /etc/default/puppet"  \

   273

#        "echo '[agent]\nserver = ${opt_puppet_master}\n' >> /etc/puppet/puppet.conf" \

   274

    )

   275

   276

    # XXX: we use files in preseed/files/..., should modularize those

   277

   278

    PUPPET_MASTER="${opt_puppet_master}"

   279

   280

    PACKAGE_INCLUDES=( ${PACKAGE_INCLUDES[@]} ${PUPPET_PACKAGES[@]} )

   283

fi

   284

   308

### Installer setup

   309

## Installation image

   310

# Original Debian Installer image (iso)

   311

INSTALLER_NAME="debian-6.0.3-amd64"

   312

INSTALLER_ISO="iso-in/${INSTALLER_NAME}-netinst.iso"

   313

INSTALLER_TREE="iso-in/$INSTALLER_NAME"

   314

INSTALLER_FLAG="${INSTALLER_TREE}.unpacked"

   315

   316

# Customized preseed image name

   317

INSTALL_NAME="debian-6.0.3-amd64_${GUEST_NAME}"

   318

   319

# Customized image content

   320

INSTALL_TREE="images/${INSTALL_NAME}"

   321

INSTALL_ISO="iso-out/${INSTALL_NAME}.iso"

   322

   323

## Preseed files

   324

# Preseed output file in install tree

   325

PRESEED_NAME="preseed.cfg"

   326

   327

# Directory containing our source templates

   328

PRESEED_SOURCE_DIR="preseed"

   329

   330

# Mount path of preseed target in installer

   331

PRESEED_MOUNT="/cdrom"

   332

   333

# Prefix for target files in install tree

   334

# XXX: not implemented

   335

#PRESEED_TARGET_PREFIX=""

   336

   337

# Main preseed source template

   338

PRESEED_TEMPLATE="${PRESEED_SOURCE_DIR}/${PRESEED_NAME}"

   339

   340

# Target path for preseed in install tree

   341

PRESEED_FILE="${INSTALL_TREE}/${PRESEED_NAME}"

   342

   343

# Checksum of target preseed.cfg

   344

PRESEED_CHECKSUM= # set later

   345

   346

## Configs

   349

CONF_FILES_SOURCE='preseed/files'

   352

CONF_FILES_TARGET_NAME='preseed-files'

   353

CONF_FILES_TARGET="${INSTALL_TREE}/${CONF_FILES_TARGET_NAME}"

   356

CONF_FILES_CP_SRC="${PRESEED_MOUNT}/${CONF_FILES_TARGET_NAME}"

   357

CONF_FILES_CP_DST='/target'

   358

   361

   362

# Additional files to copy

   363

PRESEED_INCLUDE_FILES=( $(for preseed in ${PRESEED_INCLUDES[@]}; do echo "${PRESEED_SOURCE_DIR}/${preseed}"; done) )

   364

#PRESEED_INCLUDE_FILES=("preseed/passwords.cfg" "preseed/host.cfg")

   365

   366

# preseed.cfg 'includes' line

   367

PRESEED_INCLUDE=${PRESEED_INCLUDES[@]}

   368

   369

# preseed command execution

   371

   372

   373

## Isolinux

   374

# Source for install tree isolinux file

   375

PRESEED_ISOLINUX="${PRESEED_SOURCE_DIR}/isolinux.cfg"

   376

   378

#      virt-install assumes we have an X $DISPLAY if given --vnc

   379

#      but we also want to enable the serial console...

   380

#      d-i automagically configures the serial boot/login console, but only if the installer is run under serial...

   381

#      we want to have both :(

   383

    INSTALL_BOOT_CONSOLE=""

   384

else

   385

    INSTALL_BOOT_CONSOLE="console=ttyS0"

   386

fi

   387

   390

   391

### External progs

   392

## Bootable .iso for Debian isolinux-based installer CDs

   393

GENISOIMAGE=/usr/bin/genisoimage

   394

GENISOIMAGE_OPTS="-r -J -no-emul-boot -boot-load-size 4 -boot-info-table -b isolinux/isolinux.bin -c isolinux/boot.cat"

   395

   396

## LVM

   397

LVM=/sbin/lvm

   398

   399

## Libvirt 

   400

# --connect URL

   401

LIBVIRT=qemu:///system

   402

VIRSH=/usr/bin/virsh

   403

   404

function virsh () {

   405

    $VIRSH --connect $LIBVIRT "$@"

   406

}

   407

   408

# type of guest to create

   409

LIBVIRT_TYPE=kvm

   410

   411

## virt-install

   412

VIRT_INSTALL="/usr/bin/virt-install"

   413

   414

## SELinux?

   415

#SEMANAGE=/usr/sbin/semanage

   416

#RESTORECON=/sbin/restorecon

   417

   418

   419

   420

### Prepare

   421

if [ $DO_SHOWSPEC ]; then

   422

    cat <<END

   423

Guest:

   424

    Name:       $GUEST_NAME

   425

    CPUs:       $GUEST_VCPUS

   426

    RAM:        $GUEST_RAM

   427

    OS:         $GUEST_OS_VARIANT

   428

   429

    Disk:       $GUEST_DISK

   430

   436

Disk:

   437

    Method:     LVM

   438

    Size:       $DISK_SIZE

   439

    LVM:

   440

        VG:     $DISK_VG

   441

        LV:     $DISK_NAME

   442

   443

    Path:       $DISK_PATH

   444

    Bus:        $GUEST_DISK_BUS

   445

   446

Net:

   447

    Hostname:   $NET_HOSTNAME

   448

    Method:     Bridge

   449

    IP:         $NET_IPADDR

   450

   451

    Bridge:

   452

        Name:   $NET_BRIDGE

   453

   454

User:

   455

    username:   $USER_NAME

   456

    fullname:   $USER_FULLNAME

   457

    shadow:     $USER_SHADOW

   458

   459

Installer:

   460

    Name:       $INSTALLER_NAME

   461

    ISO:        $INSTALLER_ISO

   462

    Tree:       $INSTALLER_TREE

   463

   464

Install:

   465

    Name:       $INSTALL_NAME

   466

    Tree:       $INSTALL_TREE

   467

    ISO:        $INSTALL_ISO

   468

   469

Preseed:

   470

    Name:       $PRESEED_NAME

   471

    Template:   $PRESEED_TEMPLATE

   472

    Target:     $PRESEED_FILE

   473

    Isolinux:   $PRESEED_ISOLINUX

   474

    Includes:   $PRESEED_INCLUDES

   475

   476

END

   477

fi

   478

   479

[ $TESTING ] && exit 0

   480

   481

### Check

   482

# Parameters given?

   483

[ -z $NET_IPADDR ] && die "net: No IP-address given: ip"

   484

   485

# Installer exists?

   486

if cmd test ! -f ${INSTALLER_ISO}; then

   487

    die "Installer not found: ${INSTALLER_ISO}"

   488

fi

   489