CloudStack 脚本封装分析

cloud.keystore是这样生成的

String dname = "cn="" + cn + "",ou="" + ou + "",o="" + o + "",c="" + c + """;
        Script script = new Script(true, "keytool", 5000, null);
        script.add("-genkey");
        script.add("-keystore", keystorePath);
        script.add("-storepass", "vmops.com");
        script.add("-keypass", "vmops.com");
        script.add("-keyalg", "RSA");
        script.add("-validity", "3650");
        script.add("-dname", dname);
        String result = script.execute();
        if (result != null) {
            throw new IOException("Fail to generate certificate!: " + result);
        }

手动生成该文件

sudo keytool -genkey -keystore "/etc/cloudstack/management/cloud.keystore" -storepass "vmops.com" -keypass "vmops.com" -keyalg "RSA" -validity 3650 -dname "CN=cloud.com,OU=sjcloud CA,O=sjcloud Inc,L=sjcloud,S=sjcloud,C=SE"

injectkeys.sh 脚本

# Copies keys that enable SSH communication with system vms
# $1 = new public key
# $2 = new private key

#set -x
source /etc/bashrc
source /etc/profile
TMP=/tmp

clean_up() {
  sudo umount $MOUNTPATH
}

inject_into_iso() {
  local isofile=${systemvmpath}
  local newpubkey=$2
  local backup=${isofile}.bak
  local tmpiso=${TMP}/$1
  mkdir -p $MOUNTPATH
  [ ! -f $isofile ] && echo "$(basename $0): Could not find systemvm iso patch file $isofile" && return 1
  sudo mount -o loop $isofile $MOUNTPATH
  [ $? -ne 0 ] && echo "$(basename $0): Failed to mount original iso $isofile" && clean_up && return 1
  diff -q $MOUNTPATH/authorized_keys $newpubkey &> /dev/null && clean_up && return 0
  sudo cp -b $isofile $backup
  [ $? -ne 0 ] && echo "$(basename $0): Failed to backup original iso $isofile" && clean_up && return 1
  sudo rm -rf $TMPDIR
  sudo mkdir -p $TMPDIR
  [ ! -d $TMPDIR  ] && echo "$(basename $0): Could not find/create temporary dir $TMPDIR" && clean_up && return 1
  sudo cp -fr $MOUNTPATH/* $TMPDIR/
  [ $? -ne 0 ] && echo "$(basename $0): Failed to copy from original iso $isofile" && clean_up && return 1
  sudo cp $newpubkey $TMPDIR/authorized_keys
  sudo umount $MOUNTPATH
  [ $? -ne 0 ] && echo "$(basename $0): Failed to unmount old iso from $MOUNTPATH" && return 1
  sudo cp -f $tmpiso $isofile
  [ $? -ne 0 ] && echo "$(basename $0): Failed to overwrite old iso $isofile with $tmpiso" && return 1
  sudo rm -rf $TMPDIR
}

copy_priv_key() {
  local newprivkey=$1
  diff -q $newprivkey $(dirname $0)/id_rsa.cloud && return 0
  sudo cp -f $newprivkey $(dirname $0)/id_rsa.cloud
  sudo chmod 644 $(dirname $0)/id_rsa.cloud
  return $?
}

sudo mkdir -p $MOUNTPATH

[ $# -ne 3 ] && echo "Usage: $(basename $0)  <new public key file> <new private key file> <systemvm iso path>" && exit 3
newpubkey=$1
newprivkey=$2
systemvmpath=$3
[ ! -f $newpubkey ] && echo "$(basename $0): Could not open $newpubkey" && exit 3
[ ! -f $newprivkey ] && echo "$(basename $0): Could not open $newprivkey" && exit 3

command -v mkisofs > /dev/null   || (echo "$(basename $0): mkisofs not found, please install or ensure PATH is accurate" ; exit 4)

inject_into_iso systemvm.iso $newpubkey

[ $? -ne 0 ] && exit 5

copy_priv_key $newprivkey

exit $?

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