create-box.sh

#!/bin/bash

function sshcommand () {
    if [ ! -e vagrant ]; then curl -s -L -O https://raw.githubusercontent.com/hashicorp/vagrant/master/keys/vagrant && chmod 600 vagrant; fi
    while ssh -i vagrant -o ConnectTimeout=2 -o "StrictHostKeyChecking no" -p 2222 vagrant@localhost "$1"
        #255 is timout
        if [ $? -lt 255 ]; then break; fi
        do sleep 5
    done
}

rm -f seed.iso > /dev/null 2>&1
if [[ "$OSTYPE" == "linux-gnu" ]]; then
    pushd seedconfig/
    genisoimage -output ../seed.iso -volid cidata -joliet -rock user-data meta-data
    popd
    networkInterface=$(route | grep '^default' | grep -o '[^ ]*$')
elif [[ "$OSTYPE" == "darwin"* ]]; then
    hdiutil makehybrid -o seed.iso -hfs -joliet -iso -default-volume-name cidata seedconfig/
    networkInterface=$(route -n get default | grep 'interface:' | grep -o '[^ ]*$')
else
    echo "Unknown OS"
    exit 1
fi

#Get Virtualbox AWS VM
latestImageLocation='https://cdn.amazonlinux.com/os-images/latest/virtualbox/'
awsSigningKey='https://cdn.amazonlinux.com/_assets/11CF1F95C87F5B1A.asc'
baseUrl=$(curl -I ${latestImageLocation} | grep location | awk '{print $2}' | tr -d '\r')
path=$(curl -sL ${latestImageLocation} | grep vdi | grep -o -E 'href="([^"#]+)"' | cut -d'"' -f2 | tr -d '\r')
shaFile=$(curl -sL ${latestImageLocation} | grep SHA256SUMS.gpg | grep -o -E 'href="([^"#]+)"' | cut -d'"' -f2)
curl -s -L -O "${baseUrl}${shaFile}"
decryptedShaSumsFile='SHA256SUMS'
echo "Checking GPG signature of ${shaFile} and extracting ${decryptedShaSumsFile}"
tempPubRing=$(mktemp)
tempSecRing=$(mktemp)
curl -s ${awsSigningKey} | gpg --no-options --no-default-keyring --keyring ${tempPubRing} --secret-keyring ${tempSecRing} --import -
rm -f ${decryptedShaSumsFile} > /dev/null 2>&1
gpg -d --keyring ${tempPubRing} --secret-keyring ${tempSecRing} --output ${decryptedShaSumsFile} ${shaFile}
if ! [ "$?" = "0" ]; then
    echo "ERROR: Failed to verify GPG signature"
    #exit 1
fi
echo "Checking for existing VM Image..."
shasum -c -a 256 ${decryptedShaSumsFile} #Check for existing download
if ! [ "$?" = "0" ]; then
    echo "Downloading Amazon Linux 2 VM Image: ${baseUrl}${path}"
    #curl --progress-bar -L -O -C - "${baseUrl}${path}"
    wget -c --show-progress "${baseUrl}${path}"
    shasum -c -a 256 ${decryptedShaSumsFile} # Check download against pre checked GPG signed SHA256SUMS
    if ! [ "$?" = "0" ]; then
        echo "ERROR: SHA256 Sum of ${path} downloaded doesn't match from decrypted GPG ${shaFile}"
        #exit 1
    else
        echo "${path} matches SHA256 from decrypted GPG ${shaFile}"
    fi
else
    echo "Existing ${path} matches SHA256 from decrypted GPG ${shaFile}"
fi

#Spin up VM with seed.iso
echo "Creating VM..."
VM="amazonlinux2"
VBoxManage createvm --name $VM --ostype "Linux_64" --register
VBoxManage storagectl $VM --name "SATA Controller" --add sata --controller IntelAHCI
VBoxManage storageattach $VM --storagectl "SATA Controller" --port 0 --device 0 --type hdd --medium ${path}
VBoxManage storagectl $VM --name "IDE Controller" --add ide
VBoxManage storageattach $VM --storagectl "IDE Controller" --port 0 --device 1 --type dvddrive --medium ./seed.iso
VBoxManage modifyvm $VM --ioapic on
VBoxManage modifyvm $VM --boot1 dvd --boot2 disk --boot3 none --boot4 none
VBoxManage modifyvm $VM --memory 1024 --vram 128
VBoxManage modifyvm $VM --nic1 nat
VBoxManage modifyvm $VM --natpf1 "guestssh,tcp,,2222,,22" #Vagrant SSH
VBoxManage startvm $VM --type headless
until [[ $(sshcommand "cloud-init status") == *"done"* ]]
do
    echo "Waiting for cloud-init to finish..."
    sleep 1
done
VBoxManage controlvm $VM acpipowerbutton
until [[ ! $(vboxmanage list runningvms) == *$VM* ]]
do
    echo "Waiting for $VM to poweroff..."
    sleep 1
done
#Guest additions
VBoxManage storageattach $VM --storagectl "IDE Controller" --port 0 --device 1 --type dvddrive --medium emptydrive
vBoxVersion=$(VBoxManage --version | sed 's/r.*//')
echo "Downloading virtualbox guest extensions..."
wget -c --show-progress "http://download.virtualbox.org/virtualbox/${vBoxVersion}/VBoxGuestAdditions_${vBoxVersion}.iso"
VBoxManage storageattach $VM --storagectl "IDE Controller" --port 0 --device 1 --type dvddrive --medium "./VBoxGuestAdditions_${vBoxVersion}.iso"
VBoxManage startvm $VM --type headless
sshcommand "sudo yum install -y gcc build-essential kernel-headers kernel-devel"
sshcommand "sudo mount /dev/cdrom /mnt"
sshcommand "sudo /mnt/VBoxLinuxAdditions.run"
sshcommand "sudo modinfo vboxguest"
sshcommand "sudo umount /dev/cdrom"

# Prep for vagrant & shutdown & package
sshcommand "sudo bash -c 'echo \"UseDNS no\" >> /etc/ssh/sshd_config'"
sshcommand "sudo bash -s" < ./vagrant-prep.sh
VBoxManage controlvm $VM acpipowerbutton
until [[ ! $(vboxmanage list runningvms) == *$VM* ]]
do
    echo "Waiting for $VM to poweroff..."
    sleep 1
done
vagrant package --base $VM --output ${VM}.box