diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index 30c3f52..37410c2 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -1,6 +1,17 @@
 Changelog
 =========
 
+2016-06-02
+----------
+Zach Marano:
+  * Fix expand-root script to work with newer version of growpart (in jessie-backports and beyond).
+  * Overhaul Google Compute Engine image build.
+    * Add support for Google Cloud repositories.
+    * Google Cloud SDK install uses a deb package from a Google Cloud repository.
+    * Google Compute Engine guest software is installed from a Google Cloud repository.
+    * Google Compute Engine guest software for Debian 8 is updated to new refactor.
+    * Google Compute Engine wheezy and wheezy-backports manifests are deprecated.
+
 2016-03-03
 ----------
 Anders Ingemann:
diff --git a/bootstrapvz/common/assets/init.d/expand-root b/bootstrapvz/common/assets/init.d/expand-root
index 01cab4d..ba093f7 100644
--- a/bootstrapvz/common/assets/init.d/expand-root
+++ b/bootstrapvz/common/assets/init.d/expand-root
@@ -23,9 +23,9 @@ hash $growpart 2> /dev/null || {
 root_device_path="/dev/xvda"
 root_index="0"
 
+# Growpart can fail if the partition is already resized.
 $growpart $root_device_path $root_index || {
 	$logger "growpart failed. Unable to expand size."
-	exit 1
 }
 
 device_path="${root_device_path}${root_index}"
diff --git a/bootstrapvz/plugins/google_cloud_repo/README.rst b/bootstrapvz/plugins/google_cloud_repo/README.rst
new file mode 100644
index 0000000..44249b5
--- /dev/null
+++ b/bootstrapvz/plugins/google_cloud_repo/README.rst
@@ -0,0 +1,10 @@
+Google Cloud Repo
+-----------------
+
+This plugin adds support to use Google Cloud apt repositories for Debian. It adds the public repo key and optionally will add an apt source list file and install a package containing the key in order to maintain the key over time.
+
+Settings
+--------
+
+-  ``cleanup_bootstrap_key``: Deletes the bootstrap key by removing /etc/apt/trusted.gpg in favor of the package maintained version. This is only to avoid having multiple keys around in the apt-key list. This should only be used with enable_keyring_repo.
+-  ``enable_keyring_repo``: Add a repository and package to maintain the repo public key over time.
diff --git a/bootstrapvz/plugins/google_cloud_repo/__init__.py b/bootstrapvz/plugins/google_cloud_repo/__init__.py
new file mode 100644
index 0000000..74c78cb
--- /dev/null
+++ b/bootstrapvz/plugins/google_cloud_repo/__init__.py
@@ -0,0 +1,16 @@
+import tasks
+import os.path
+
+
+def validate_manifest(data, validator, error):
+	schema_path = os.path.normpath(os.path.join(os.path.dirname(__file__), 'manifest-schema.yml'))
+	validator(data, schema_path)
+
+
+def resolve_tasks(taskset, manifest):
+	taskset.add(tasks.AddGoogleCloudRepoKey)
+	if manifest.plugins['google_cloud_repo'].get('enable_keyring_repo', False):
+		taskset.add(tasks.AddGoogleCloudRepoKeyringRepo)
+		taskset.add(tasks.InstallGoogleCloudRepoKeyringPackage)
+		if manifest.plugins['google_cloud_repo'].get('cleanup_bootstrap_key', False):
+			taskset.add(tasks.CleanupBootstrapRepoKey)
diff --git a/bootstrapvz/plugins/google_cloud_repo/manifest-schema.yml b/bootstrapvz/plugins/google_cloud_repo/manifest-schema.yml
new file mode 100644
index 0000000..129cc54
--- /dev/null
+++ b/bootstrapvz/plugins/google_cloud_repo/manifest-schema.yml
@@ -0,0 +1,14 @@
+---
+$schema: http://json-schema.org/draft-04/schema#
+title: Google Cloud repository plugin manifest
+type: object
+properties:
+  plugins:
+    type: object
+    properties:
+      google_cloud_repo:
+        type: object
+        properties:
+          cleanup_bootstrap_key: {type: boolean}
+          enable_keyring_repo: {type: boolean}
+        additionalProperties: false
diff --git a/bootstrapvz/plugins/google_cloud_repo/tasks.py b/bootstrapvz/plugins/google_cloud_repo/tasks.py
new file mode 100644
index 0000000..2306e1d
--- /dev/null
+++ b/bootstrapvz/plugins/google_cloud_repo/tasks.py
@@ -0,0 +1,49 @@
+from bootstrapvz.base import Task
+from bootstrapvz.common import phases
+from bootstrapvz.common.tasks import apt
+from bootstrapvz.common.tasks import packages
+from bootstrapvz.common.tools import log_check_call
+import os
+
+
+class AddGoogleCloudRepoKey(Task):
+	description = 'Adding Google Cloud Repo key.'
+	phase = phases.package_installation
+	predecessors = [apt.InstallTrustedKeys]
+	successors = [apt.WriteSources]
+
+	@classmethod
+	def run(cls, info):
+		key_file = os.path.join(info.root, 'google.gpg.key')
+		log_check_call(['wget', 'https://packages.cloud.google.com/apt/doc/apt-key.gpg', '-O', key_file])
+		log_check_call(['chroot', info.root, 'apt-key', 'add', 'google.gpg.key'])
+		os.remove(key_file)
+
+
+class AddGoogleCloudRepoKeyringRepo(Task):
+	description = 'Adding Google Cloud keyring repository.'
+	phase = phases.preparation
+	predecessors = [apt.AddManifestSources]
+
+	@classmethod
+	def run(cls, info):
+		info.source_lists.add('google-cloud', 'deb http://packages.cloud.google.com/apt google-cloud-packages-archive-keyring-{system.release} main')
+
+
+class InstallGoogleCloudRepoKeyringPackage(Task):
+	description = 'Installing Google Cloud key package.'
+	phase = phases.preparation
+	successors = [packages.AddManifestPackages]
+
+	@classmethod
+	def run(cls, info):
+		info.packages.add('google-cloud-packages-archive-keyring')
+
+
+class CleanupBootstrapRepoKey(Task):
+	description = 'Cleaning up bootstrap repo key.'
+	phase = phases.system_cleaning
+
+	@classmethod
+	def run(cls, info):
+		os.remove(os.path.join(info.root, 'etc', 'apt', 'trusted.gpg'))
diff --git a/bootstrapvz/plugins/google_cloud_sdk/__init__.py b/bootstrapvz/plugins/google_cloud_sdk/__init__.py
deleted file mode 100644
index 7a7ba47..0000000
--- a/bootstrapvz/plugins/google_cloud_sdk/__init__.py
+++ /dev/null
@@ -1,6 +0,0 @@
-import tasks
-
-
-def resolve_tasks(taskset, manifest):
-	taskset.add(tasks.InstallCloudSDK)
-	taskset.add(tasks.RemoveCloudSDKTarball)
diff --git a/bootstrapvz/plugins/google_cloud_sdk/tasks.py b/bootstrapvz/plugins/google_cloud_sdk/tasks.py
deleted file mode 100644
index 33c21a2..0000000
--- a/bootstrapvz/plugins/google_cloud_sdk/tasks.py
+++ /dev/null
@@ -1,71 +0,0 @@
-from bootstrapvz.base import Task
-from bootstrapvz.common import phases
-from bootstrapvz.common.tools import log_check_call
-import os
-
-
-class InstallCloudSDK(Task):
-	description = 'Install Cloud SDK, not yet packaged'
-	phase = phases.system_modification
-
-	@classmethod
-	def run(cls, info):
-		import contextlib
-		import re
-		import urllib
-		import urlparse
-
-		# The current download URL needs to be determined dynamically via a sha1sum file. Here's the
-		# necessary logic.
-
-		cloudsdk_download_site = 'https://dl.google.com/dl/cloudsdk/release/'
-		cloudsdk_filelist_url = urlparse.urljoin(cloudsdk_download_site, 'sha1.txt')
-		cloudsdk_pathname_regexp = r'^packages/google-cloud-sdk-coretools-linux-[0-9]+\.tar\.gz$'
-		cloudsdk_filename = ''  # This is set in the 'with' block below.
-
-		with contextlib.closing(urllib.urlopen(cloudsdk_filelist_url)) as cloudsdk_filelist:
-			# cloudsdk_filelist is in sha1sum format, so <hash><whitespace><pathname>
-			# pathname is a suffix relative to cloudsdk_download_site
-			#
-			# Retrieve the pathname which matches cloudsdk_pathname_regexp. It's currently safe to
-			# assume that only one pathname will match.
-			for cloudsdk_filelist_line in cloudsdk_filelist:
-				_, pathname = cloudsdk_filelist_line.split()
-				if re.match(cloudsdk_pathname_regexp, pathname):
-					# Don't use os.path.basename since we're actually parsing a URL
-					# suffix, not a path. Same probable result, but wrong semantics.
-					#
-					# The format of pathname is already known to match
-					# cloudsdk_pathname_regexp, so this is safe.
-					_, cloudsdk_filename = pathname.rsplit('/', 1)
-					break
-
-		cloudsdk_download_dest = os.path.join(info.workspace, cloudsdk_filename)
-
-		cloudsdk_url = urlparse.urljoin(cloudsdk_download_site, pathname)
-
-		urllib.urlretrieve(cloudsdk_url, cloudsdk_download_dest)
-
-		# Make a "mental note" of which file to remove in the system cleaning phase.
-		info._google_cloud_sdk['tarball_pathname'] = cloudsdk_download_dest
-
-		cloudsdk_directory = os.path.join(info.root, 'usr/local/share/google')
-		os.makedirs(cloudsdk_directory)
-		log_check_call(['tar', 'xaf', cloudsdk_download_dest, '-C', cloudsdk_directory])
-
-		# We need to symlink certain programs from the Cloud SDK bin directory into /usr/local/bin.
-		# Keep a list and do it in a unified way. Naturally this will go away with proper packaging.
-		gcloud_programs = ['bq', 'gsutil', 'gcutil', 'gcloud', 'git-credential-gcloud.sh']
-		for prog in gcloud_programs:
-			src = os.path.join('..', 'share', 'google', 'google-cloud-sdk', 'bin', prog)
-			dest = os.path.join(info.root, 'usr', 'local', 'bin', prog)
-			os.symlink(src, dest)
-
-
-class RemoveCloudSDKTarball(Task):
-	description = 'Remove tarball for Cloud SDK'
-	phase = phases.system_cleaning
-
-	@classmethod
-	def run(cls, info):
-		os.remove(info._google_cloud_sdk['tarball_pathname'])
diff --git a/bootstrapvz/providers/gce/__init__.py b/bootstrapvz/providers/gce/__init__.py
index 1a7ece6..d775452 100644
--- a/bootstrapvz/providers/gce/__init__.py
+++ b/bootstrapvz/providers/gce/__init__.py
@@ -1,5 +1,4 @@
 from bootstrapvz.common import task_groups
-import tasks.apt
 import tasks.boot
 import tasks.configuration
 import tasks.image
@@ -11,7 +10,6 @@ from bootstrapvz.common.tasks import boot
 from bootstrapvz.common.tasks import image
 from bootstrapvz.common.tasks import loopback
 from bootstrapvz.common.tasks import initd
-from bootstrapvz.common.tasks import kernel
 from bootstrapvz.common.tasks import ssh
 from bootstrapvz.common.tasks import volume
 
@@ -28,18 +26,12 @@ def resolve_tasks(taskset, manifest):
 	taskset.update([apt.AddBackports,
 	                loopback.AddRequiredCommands,
 	                loopback.Create,
-	                tasks.apt.SetPackageRepositories,
-	                tasks.apt.ImportGoogleKey,
 	                tasks.packages.DefaultPackages,
-	                tasks.packages.ReleasePackages,
-	                tasks.packages.GooglePackages,
-
 	                tasks.configuration.GatherReleaseInformation,
-
 	                tasks.host.DisableIPv6,
-	                tasks.host.InstallHostnameHook,
 	                tasks.boot.ConfigureGrub,
 	                initd.AddExpandRoot,
+	                initd.AdjustExpandRootScript,
 	                tasks.initd.AdjustExpandRootDev,
 	                initd.InstallInitScripts,
 	                boot.BlackListModules,
@@ -47,20 +39,11 @@ def resolve_tasks(taskset, manifest):
 	                ssh.AddSSHKeyGeneration,
 	                ssh.DisableSSHPasswordAuthentication,
 	                ssh.DisableRootLogin,
-	                tasks.apt.CleanGoogleRepositoriesAndKeys,
-
 	                image.MoveImage,
 	                tasks.image.CreateTarball,
 	                volume.Delete,
 	                ])
 
-	if manifest.volume['partitions']['type'] != 'none':
-		taskset.add(initd.AdjustExpandRootScript)
-
-	if manifest.volume['partitions']['type'] != 'mbr':
-		taskset.update([tasks.initd.AddGrowRootDisable,
-		                kernel.UpdateInitramfs])
-
 	if 'gcs_destination' in manifest.provider:
 		taskset.add(tasks.image.UploadImage)
 		if 'gce_project' in manifest.provider:
diff --git a/bootstrapvz/providers/gce/assets/initramfs-tools/scripts/local-premount/gce-disable-growroot b/bootstrapvz/providers/gce/assets/initramfs-tools/scripts/local-premount/gce-disable-growroot
deleted file mode 100755
index a23ce19..0000000
--- a/bootstrapvz/providers/gce/assets/initramfs-tools/scripts/local-premount/gce-disable-growroot
+++ /dev/null
@@ -1,77 +0,0 @@
-# Selectively disable growroot               -*- shell-script -*-
-set -e
-PREREQ=""
-prereqs()
-{
-  echo "$PREREQ"
-}
-
-case $1 in
-prereqs)
-  prereqs
-  exit 0
-  ;;
-esac
-
-message() { echo "DISABLE-GROWROOT:" "$@" ; }
-error_exit() { message "$@"; exit 1; }
-
-. /scripts/functions
-
-# initramfs-tools exports the following variables, used below:
-# $ROOT - Generally "/dev/disk/by-uuid/<id>" which is a link to /dev/sda1
-# $ROOTFLAGS - Generally empty
-# $ROOTFSTYPE - Generally empty
-# $rootmnt - Set to "/root"
-
-# According to the initramfs documentation, it's supposed to wait until
-# the disks have been attached and verified before the local-premount scripts
-# run. This does not happen, however, and failures can happen below if $ROOT
-# is referenced before the disk that it points to is attached. This allows for
-# up to 4 seconds for that to happen. In practice, it generally takes less
-# than half a second.
-for i in $(seq 1 20); do
-  if [ -e "${ROOT}" ]; then
-    break
-  fi
-  sleep 0.2
-done
-
-# Follow link to get real root location
-if [ ! -L "${ROOT}" ]; then
-  real_root=${ROOT}
-else
-  real_root=$(readlink -f "${ROOT}")
-fi
-
-# Remove partition number to get disk
-disk=$(echo ${real_root} | sed 's/[0-9]*$//')
-
-# Determine number of 512-byte sectors in 2TB
-two_tb=$((2*(1024**4)))
-max_sectors=$((${two_tb}/512))
-
-# Determine number of sectors on disk
-geometry=$(sfdisk ${disk} --show-pt-geometry)
-cyl=$(echo $geometry | cut -d " " -f 2)
-heads=$(echo $geometry | cut -d " " -f 4)
-secs=$(echo $geometry | cut -d " " -f 6)
-sectors=$((${cyl}*${heads}*${secs}))
-
-# If disk is >2TB, disable growroot
-if [ "$sectors" -gt "$max_sectors" ]; then
-  message "Disk size >2TB - Not expanding root partition"
-  # Temporarily mount filesystem
-  if [ -z "${ROOTFSTYPE}" ]; then
-    fstype=$(get_fstype "${ROOT}")
-  else
-    fstype=${ROOTFSTYPE}
-  fi
-  mount -w ${fstype:+-t ${fstype} }${ROOTFLAGS} ${ROOT} ${rootmnt} ||
-      error_exit "failed to mount ${ROOT}."
-  # Disable growroot
-  touch "${rootmnt}/etc/growroot-disabled"
-  # Unmount filesystem
-  umount "${rootmnt}" || error_exit "failed to umount ${rootmnt}";
-fi
-
diff --git a/bootstrapvz/providers/gce/tasks/__init__.py b/bootstrapvz/providers/gce/tasks/__init__.py
index 494ec79..e69de29 100644
--- a/bootstrapvz/providers/gce/tasks/__init__.py
+++ b/bootstrapvz/providers/gce/tasks/__init__.py
@@ -1,3 +0,0 @@
-import os.path
-
-assets = os.path.normpath(os.path.join(os.path.dirname(__file__), '../assets'))
diff --git a/bootstrapvz/providers/gce/tasks/apt.py b/bootstrapvz/providers/gce/tasks/apt.py
deleted file mode 100644
index 905e175..0000000
--- a/bootstrapvz/providers/gce/tasks/apt.py
+++ /dev/null
@@ -1,58 +0,0 @@
-from bootstrapvz.base import Task
-from bootstrapvz.common import phases
-from bootstrapvz.common.tasks import apt
-from bootstrapvz.common.tasks import network
-from bootstrapvz.common.tools import log_check_call
-import os
-
-
-class SetPackageRepositories(Task):
-	description = 'Adding apt sources'
-	phase = phases.preparation
-	predecessors = [apt.AddManifestSources, apt.AddBackports]
-
-	@classmethod
-	def run(cls, info):
-		components = 'main'
-		if 'components' in info.manifest.system:
-			components = ' '.join(info.manifest.system['components'])
-		info.source_lists.add('main', 'deb     http://http.debian.net/debian {system.release} ' + components)
-		info.source_lists.add('main', 'deb-src http://http.debian.net/debian {system.release} ' + components)
-		info.source_lists.add('backports', 'deb     http://http.debian.net/debian {system.release}-backports ' + components)
-		info.source_lists.add('backports', 'deb-src http://http.debian.net/debian {system.release}-backports ' + components)
-		info.source_lists.add('google', 'deb http://packages.cloud.google.com/apt google-cloud-compute-legacy-{system.release} main')
-
-
-class ImportGoogleKey(Task):
-	description = 'Adding Google key'
-	phase = phases.package_installation
-	predecessors = [apt.InstallTrustedKeys]
-	successors = [apt.WriteSources]
-
-	@classmethod
-	def run(cls, info):
-		key_file = os.path.join(info.root, 'google.gpg.key')
-		log_check_call(['wget', 'https://packages.cloud.google.com/apt/doc/apt-key.gpg', '-O', key_file])
-		log_check_call(['chroot', info.root, 'apt-key', 'add', 'google.gpg.key'])
-		os.remove(key_file)
-
-
-class CleanGoogleRepositoriesAndKeys(Task):
-	description = 'Removing Google key and apt source files'
-	phase = phases.system_cleaning
-	predecessors = [apt.AptClean]
-	successors = [network.RemoveDNSInfo]
-
-	@classmethod
-	def run(cls, info):
-		keys = log_check_call(['chroot', info.root, 'apt-key',
-		                       'adv', '--with-colons', '--list-keys'])
-		# protect against first lines with debug information,
-		# not apt-key output
-		key_id = [key.split(':')[4] for key in keys
-		          if len(key.split(':')) == 13 and
-		          key.split(':')[9].find('@google.com') > 0]
-		log_check_call(['chroot', info.root, 'apt-key', 'del', key_id[0]])
-		apt_file = os.path.join(info.root, 'etc/apt/sources.list.d/google.list')
-		os.remove(apt_file)
-		log_check_call(['chroot', info.root, 'apt-get', 'update'])
diff --git a/bootstrapvz/providers/gce/tasks/host.py b/bootstrapvz/providers/gce/tasks/host.py
index 3810d81..55b8387 100644
--- a/bootstrapvz/providers/gce/tasks/host.py
+++ b/bootstrapvz/providers/gce/tasks/host.py
@@ -1,7 +1,6 @@
 from bootstrapvz.base import Task
 from bootstrapvz.common import phases
 from bootstrapvz.common.tasks import network
-from bootstrapvz.common.tools import log_check_call
 import os.path
 
 
@@ -16,27 +15,3 @@ class DisableIPv6(Task):
 		with open(network_configuration_path, 'w') as config_file:
 			print >>config_file, "net.ipv6.conf.all.disable_ipv6 = 1"
 			print >>config_file, "net.ipv6.conf.lo.disable_ipv6 = 0"
-
-
-class InstallHostnameHook(Task):
-	description = "Installing hostname hook"
-	phase = phases.system_modification
-
-	@classmethod
-	def run(cls, info):
-		# There's a surprising amount of software out there which doesn't react well to the system
-		# hostname being set to a potentially long the fully qualified domain name, including Java 7
-		# and lower, quite relevant to a lot of cloud use cases such as Hadoop. Since Google Compute
-		# Engine's out-of-the-box domain names are long but predictable based on project name, we
-		# install this hook to set the hostname to the short hostname but add a suitable /etc/hosts
-		# entry.
-		#
-		# Since not all operating systems which Google supports on Compute Engine work with the
-		# /etc/dhcp/dhclient-exit-hooks.d directory, Google's internally-built packaging uses the
-		# consistent install path of /usr/share/google/set-hostname, and OS-specific build steps are
-		# used to activate the DHCP hook. In any future Debian-maintained distro-specific packaging,
-		# the updated deb could handle installing the below symlink or the script itself into
-		# /etc/dhcp/dhclient-exit-hooks.d.
-		log_check_call(['chroot', info.root, 'ln', '-s',
-		                '/usr/share/google/set-hostname',
-		                '/etc/dhcp/dhclient-exit-hooks.d/set-hostname'])
diff --git a/bootstrapvz/providers/gce/tasks/initd.py b/bootstrapvz/providers/gce/tasks/initd.py
index af7c9e8..1f3ed7c 100644
--- a/bootstrapvz/providers/gce/tasks/initd.py
+++ b/bootstrapvz/providers/gce/tasks/initd.py
@@ -1,31 +1,9 @@
 from bootstrapvz.base import Task
 from bootstrapvz.common import phases
-from bootstrapvz.common.tasks import kernel
 from bootstrapvz.common.tasks import initd
-from . import assets
 import os.path
 
 
-class AddGrowRootDisable(Task):
-	description = 'Add script to selectively disable growroot'
-	phase = phases.system_modification
-	successors = [kernel.UpdateInitramfs]
-
-	@classmethod
-	def run(cls, info):
-		import stat
-		rwxr_xr_x = (stat.S_IRUSR | stat.S_IWUSR | stat.S_IXUSR |
-		             stat.S_IRGRP                | stat.S_IXGRP |
-		             stat.S_IROTH                | stat.S_IXOTH)
-		from shutil import copy
-		script_src = os.path.join(assets,
-                            'initramfs-tools/scripts/local-premount/gce-disable-growroot')
-		script_dst = os.path.join(info.root,
-                            'etc/initramfs-tools/scripts/local-premount/gce-disable-growroot')
-		copy(script_src, script_dst)
-		os.chmod(script_dst, rwxr_xr_x)
-
-
 class AdjustExpandRootDev(Task):
 	description = 'Adjusting the expand-root device'
 	phase = phases.system_modification
diff --git a/bootstrapvz/providers/gce/tasks/packages.py b/bootstrapvz/providers/gce/tasks/packages.py
index 13f6ab4..4326c86 100644
--- a/bootstrapvz/providers/gce/tasks/packages.py
+++ b/bootstrapvz/providers/gce/tasks/packages.py
@@ -1,9 +1,7 @@
 from bootstrapvz.base import Task
 from bootstrapvz.common import phases
-from bootstrapvz.common.tasks import apt
 from bootstrapvz.common.tasks import packages
 from bootstrapvz.common.tools import config_get
-import logging
 import os
 
 
@@ -35,34 +33,3 @@ class DefaultPackages(Task):
 		kernel_package = config_get(kernel_packages_path, [info.manifest.release.codename,
 		                                                   info.manifest.system['architecture']])
 		info.packages.add(kernel_package)
-
-
-class ReleasePackages(Task):
-	description = 'Adding release-specific packages required for GCE'
-	phase = phases.preparation
-	predecessors = [apt.AddBackports, DefaultPackages]
-	successors = [packages.AddManifestPackages]
-
-	@classmethod
-	def run(cls, info):
-		# Add release-specific packages, if available.
-		if (info.source_lists.target_exists('wheezy-backports') or
-		        info.source_lists.target_exists('jessie') or
-		        info.source_lists.target_exists('jessie-backports')):
-			info.packages.add('cloud-initramfs-growroot')
-		else:
-			msg = ('No release-specific packages found for {system.release}').format(**info.manifest_vars)
-			logging.getLogger(__name__).warning(msg)
-
-
-class GooglePackages(Task):
-	description = 'Adding image packages required for GCE from Google repositories'
-	phase = phases.preparation
-	predecessors = [DefaultPackages]
-	successors = [packages.AddManifestPackages]
-
-	@classmethod
-	def run(cls, info):
-		info.packages.add('google-compute-daemon')
-		info.packages.add('google-startup-scripts')
-		info.packages.add('python-gcimagebundle')
diff --git a/manifests/official/gce/README.rst b/manifests/official/gce/README.rst
index 67dc601..c44657b 100644
--- a/manifests/official/gce/README.rst
+++ b/manifests/official/gce/README.rst
@@ -1,2 +1,20 @@
 Official GCE manifests
 ======================
+
+These are the official manifests used to build [Google Compute Engine (GCE) Debian images](https://cloud.google.com/compute/docs/images).
+
+The included packages and configuration changes are necessary for Debian to run on GCE as a first class citizen of the platform.
+Included GCE software is published on github: [Google Compute Engine guest environment](https://github.com/GoogleCloudPlatform/compute-image-packages)
+
+Debian 8 Jessie Package Notes:
+* python-crcmod is pulled in from backports as it provides a compiled crcmod required for the Google Cloud Storage CLI (gsutil).
+* cloud-utils and cloud-guest-utils are pulled in from backports as they provide a fixed version of growpart to safely grow the root partition on disks >2TB.
+* google-cloud-sdk is pulled from a Google Cloud repository.
+* google-compute-engine is pulled from a Google Cloud repository.
+* google-config is pulled from a Google Cloud repository.
+
+jessie-minimal Notes:
+The only additions are the necessary google-compute-engine and google-config packages. This image is not published on GCE however the manifest is provided here for those wishing a minimal GCE Debian image.
+
+Note: Debian 7 Wheezy and Backports Debian 7 Wheezy are deprecated images on GCE and are no longer supported.
+These manifests are provided here for historic purposes.
diff --git a/manifests/official/gce/wheezy-backports.yml b/manifests/official/gce/deprecated/wheezy-backports.yml
similarity index 59%
rename from manifests/official/gce/wheezy-backports.yml
rename to manifests/official/gce/deprecated/wheezy-backports.yml
index b938234..9c99034 100644
--- a/manifests/official/gce/wheezy-backports.yml
+++ b/manifests/official/gce/deprecated/wheezy-backports.yml
@@ -20,7 +20,15 @@ volume:
       filesystem: ext4
       size: 10GiB
 packages:
+  sources:
+    google-cloud:
+      - deb http://packages.cloud.google.com/apt cloud-sdk-{system.release} main
+      - deb http://packages.cloud.google.com/apt google-cloud-compute-legacy-{system.release} main
   install:
+    - google-cloud-sdk
+    - google-compute-daemon
+    - google-startup-scripts
+    - python-gcimagebundle
     - rsync
     - screen
     - vim
@@ -33,8 +41,14 @@ packages:
     - package: init-system-helpers openssh-sftp-server openssh-client openssh-server
       pin: release n=wheezy-backports
       pin-priority: 500
+    backport-growroot:
+    - package: cloud-initramfs-growroot
+      pin: release n=wheezy-backports
+      pin-priority: 500
 plugins:
-  google_cloud_sdk: {}
+  google_cloud_repo:
+    cleanup_bootstrap_key: True
+    enable_keyring_repo: True
   ntp:
     servers:
     - metadata.google.internal
diff --git a/manifests/official/gce/deprecated/wheezy.yml b/manifests/official/gce/deprecated/wheezy.yml
new file mode 100644
index 0000000..7270133
--- /dev/null
+++ b/manifests/official/gce/deprecated/wheezy.yml
@@ -0,0 +1,41 @@
+---
+name: disk
+provider:
+  name: gce
+  description: Debian {system.release} {system.architecture}
+bootstrapper:
+  workspace: /target
+system:
+  release: wheezy
+  architecture: amd64
+  bootloader: grub
+  charmap: UTF-8
+  locale: en_US
+  timezone: UTC
+volume:
+  backing: raw
+  partitions:
+    type: msdos
+    root:
+      filesystem: ext4
+      size: 10GiB
+packages:
+  sources:
+    google-cloud:
+      - deb http://packages.cloud.google.com/apt cloud-sdk-{system.release} main
+      - deb http://packages.cloud.google.com/apt google-cloud-compute-legacy-{system.release} main
+  install:
+    - google-cloud-sdk
+    - google-compute-daemon
+    - google-startup-scripts
+    - python-gcimagebundle
+    - rsync
+    - screen
+    - vim
+plugins:
+  google_cloud_repo:
+    cleanup_bootstrap_key: True
+    enable_keyring_repo: True
+  ntp:
+    servers:
+    - metadata.google.internal
diff --git a/manifests/official/gce/wheezy.yml b/manifests/official/gce/jessie-minimal.yml
similarity index 57%
rename from manifests/official/gce/wheezy.yml
rename to manifests/official/gce/jessie-minimal.yml
index cc3e593..85640bf 100644
--- a/manifests/official/gce/wheezy.yml
+++ b/manifests/official/gce/jessie-minimal.yml
@@ -6,7 +6,7 @@ provider:
 bootstrapper:
   workspace: /target
 system:
-  release: wheezy
+  release: jessie
   architecture: amd64
   bootloader: grub
   charmap: UTF-8
@@ -20,12 +20,16 @@ volume:
       filesystem: ext4
       size: 10GiB
 packages:
+  sources:
+    google-cloud:
+      - deb http://packages.cloud.google.com/apt google-cloud-compute-{system.release} main
   install:
-    - rsync
-    - screen
-    - vim
+    - google-compute-engine-{system.release}
+    - google-config-{system.release}
 plugins:
-  google_cloud_sdk: {}
+  google_cloud_repo:
+    cleanup_bootstrap_key: true
+    enable_keyring_repo: true
   ntp:
     servers:
     - metadata.google.internal
diff --git a/manifests/official/gce/jessie.yml b/manifests/official/gce/jessie.yml
index a10b167..bcdf4fa 100644
--- a/manifests/official/gce/jessie.yml
+++ b/manifests/official/gce/jessie.yml
@@ -20,12 +20,38 @@ volume:
       filesystem: ext4
       size: 10GiB
 packages:
+  sources:
+    google-cloud:
+      - deb http://packages.cloud.google.com/apt cloud-sdk-{system.release} main
+      - deb http://packages.cloud.google.com/apt google-cloud-compute-{system.release} main
   install:
-    - rsync
+    - cloud-initramfs-growroot
+    - cloud-utils
+    - google-cloud-sdk
+    - google-compute-engine-{system.release}
+    - google-config-{system.release}
+    - python-crcmod
     - screen
     - vim
+  preferences:
+    # python-crcmod in backports has a compiled version needed for Google Cloud Storage.
+    backport-python-crcmod:
+    - package: python-crcmod
+      pin: release n=jessie-backports
+      pin-priority: 500
+    # cloud-utils in backports has a fixed version of growpart to allow root disk expansion on disks > 2TB.
+    backport-cloud-utils:
+    - package: cloud-utils
+      pin: release n=jessie-backports
+      pin-priority: 500
 plugins:
-  google_cloud_sdk: {}
+  google_cloud_repo:
+    cleanup_bootstrap_key: true
+    enable_keyring_repo: true
   ntp:
     servers:
     - metadata.google.internal
+  unattended_upgrades:
+    download_interval: 1
+    update_interval: 1
+    upgrade_interval: 1