def install_cloud_sdk(g: guestfs.GuestFS, ubuntu_release: str) -> None:
""" Installs Google Cloud SDK, supporting apt and snap.
Args:
g: A mounted GuestFS instance.
ubuntu_release: The release nickname (eg: trusty).
"""
try:
g.sh('gcloud --version')
logging.info(
'Found gcloud. Skipping installation of Google Cloud SDK.')
return
except RuntimeError:
logging.info('Did not find previous install of gcloud.')
if g.gcp_image_major >= '18':
# Starting at 18.04, the ubuntu-os-cloud images install the sdk
# using snap. Running `snap install` directly is not an option
# here since it requires the snapd daemon to be running on the guest.
g.write('/etc/cloud/cloud.cfg.d/91-google-cloud-sdk.cfg',
cloud_init_cloud_sdk)
logging.info(
'Google Cloud SDK will be installed using snap with cloud-init.')
else:
g.write('/etc/apt/sources.list.d/partner.list',
apt_cloud_sdk.format(ubuntu_release=ubuntu_release))
utils.update_apt(g)
utils.install_apt_packages(g, 'google-cloud-sdk')
logging.info('Installed Google Cloud SDK with apt.')
def DistroSpecific(g):
install_gce = utils.GetMetadataAttribute('install_gce_packages')
deb_release = utils.GetMetadataAttribute('debian_release')
if install_gce == 'true':
logging.info('Installing GCE packages.')
utils.update_apt(g)
utils.install_apt_packages(g, 'gnupg')
g.command(
['wget', 'https://packages.cloud.google.com/apt/doc/apt-key.gpg',
'-O', '/tmp/gce_key'])
g.command(['apt-key', 'add', '/tmp/gce_key'])
g.rm('/tmp/gce_key')
g.write(
'/etc/apt/sources.list.d/google-cloud.list',
google_cloud.format(deb_release=deb_release))
# Remove Azure agent.
try:
g.command(['apt-get', 'remove', '-y', '-f', 'waagent', 'walinuxagent'])
except Exception as e:
logging.debug(str(e))
logging.warn('Could not uninstall Azure agent. Continuing anyway.')
utils.update_apt(g)
pkgs = ['google-cloud-packages-archive-keyring', 'google-compute-engine']
# Debian 8 differences:
# 1. No NGE
# 2. No Cloud SDK, since it requires Python 3.5+.
# 3. No OS config agent.
if deb_release == 'jessie':
# Debian 8 doesn't support the new guest agent, so we need to install
# the legacy Python version.
pkgs += ['python-google-compute-engine',
'python3-google-compute-engine']
logging.info('Skipping installation of OS Config agent. '
'Requires Debian 9 or newer.')
else:
pkgs += ['google-cloud-sdk', 'google-osconfig-agent']
utils.install_apt_packages(g, *pkgs)
# Update grub config to log to console.
g.command(
['sed', '-i""',
r'/GRUB_CMDLINE_LINUX/s#"$# console=ttyS0,38400n8"#',
'/etc/default/grub'])
# Disable predictive network interface naming in Stretch.
if deb_release == 'stretch':
g.command(
['sed', '-i',
r's#^\(GRUB_CMDLINE_LINUX=".*\)"$#\1 net.ifnames=0 biosdevname=0"#',
'/etc/default/grub'])
g.command(['update-grub2'])
# Reset network for DHCP.
logging.info('Resetting network to DHCP for eth0.')
g.write('/etc/network/interfaces', interfaces)
def install_cloud_sdk(g: guestfs.GuestFS, ubuntu_release: str) -> None:
""" Installs Google Cloud SDK, supporting apt and snap.
Args:
g: A mounted GuestFS instance.
ubuntu_release: The release nickname (eg: trusty).
"""
try:
run(g, 'gcloud --version')
logging.info(
'Found gcloud. Skipping installation of Google Cloud SDK.')
return
except RuntimeError:
logging.info('Did not find previous install of gcloud.')
if g.gcp_image_major < '18':
g.write('/etc/apt/sources.list.d/partner.list',
apt_cloud_sdk.format(ubuntu_release=ubuntu_release))
utils.update_apt(g)
utils.install_apt_packages(g, 'google-cloud-sdk')
logging.info('Installed Google Cloud SDK with apt.')
return
# Starting at 18.04, Canonical installs the sdk using snap.
# Running `snap install` directly is not an option here since it
# requires the snapd daemon to be running on the guest.
g.write('/etc/cloud/cloud.cfg.d/91-google-cloud-sdk.cfg',
cloud_init_cloud_sdk)
logging.info(
'Google Cloud SDK will be installed using snap with cloud-init.')
# Include /snap/bin in the PATH for startup and shutdown scripts.
# This was present in the old guest agent, but lost in the new guest
# agent.
for p in [
'/lib/systemd/system/google-shutdown-scripts.service',
'/lib/systemd/system/google-startup-scripts.service'
]:
logging.debug('[%s] Checking whether /bin/snap is on PATH.', p)
if not g.exists(p):
logging.debug('[%s] Skipping: Unit not found.', p)
continue
original_unit = g.cat(p)
# Check whether the PATH is already set; if so, skip patching to avoid
# overwriting existing directive.
match = re.search('Environment=[\'"]?PATH.*',
original_unit,
flags=re.IGNORECASE)
if match:
logging.debug(
'[%s] Skipping: PATH already defined in unit file: %s.', p,
match.group())
continue
# Add Environment directive to unit file, and show diff in debug log.
patched_unit = original_unit.replace('[Service]', snap_env_directive)
g.write(p, patched_unit)
diff = '\n'.join(Differ().compare(original_unit.splitlines(),
patched_unit.splitlines()))
logging.debug('[%s] PATH not defined. Added:\n%s', p, diff)
def DistroSpecific(g):
ubuntu_release = utils.GetMetadataAttribute('ubuntu_release')
install_gce = utils.GetMetadataAttribute('install_gce_packages')
# If present, remove any hard coded DNS settings in resolvconf.
# This is a common workaround to include permanent changes:
# https://askubuntu.com/questions/157154
if g.exists('/etc/resolvconf/resolv.conf.d/base'):
logging.info('Resetting resolvconf base.')
run(g, 'echo "" > /etc/resolvconf/resolv.conf.d/base')
# Reset the network to DHCP.
if ubuntu_release == 'trusty':
g.write('/etc/network/interfaces', network_trusty)
elif ubuntu_release == 'xenial':
g.write('/etc/network/interfaces', network_xenial)
elif g.is_dir('/etc/netplan'):
run(g, 'rm -f /etc/netplan/*.yaml')
g.write('/etc/netplan/config.yaml', network_netplan)
run(g, 'netplan apply')
if install_gce == 'true':
utils.update_apt(g)
logging.info('Installing cloud-init.')
utils.install_apt_packages(g, 'cloud-init')
# Ubuntu 14.04's version of cloud-init doesn't have `clean`.
if g.gcp_image_major > '14':
run(g, 'cloud-init clean')
# Remove cloud-init configs that may conflict with GCE's.
#
# - subiquity disables automatic network configuration
# https://bugs.launchpad.net/ubuntu/+source/cloud-init/+bug/1871975
for cfg in [
'azure', 'curtin', 'waagent', 'walinuxagent', 'aws', 'amazon',
'subiquity'
]:
run(g, 'rm -f /etc/cloud/cloud.cfg.d/*%s*' % cfg)
remove_azure_agents(g)
g.write('/etc/cloud/cloud.cfg.d/91-gce-system.cfg', cloud_init_repos)
if g.gcp_image_major > '14':
install_osconfig_agent(g)
utils.install_apt_packages(g, 'gce-compute-image-packages')
install_cloud_sdk(g, ubuntu_release)
# Update grub config to log to console.
run(g, [
'sed', '-i',
r's#^\(GRUB_CMDLINE_LINUX=".*\)"$#\1 console=ttyS0,38400n8"#',
'/etc/default/grub'
])
run(g, ['update-grub2'])
def DistroSpecific(g):
install_gce = utils.GetMetadataAttribute('install_gce_packages')
deb_release = utils.GetMetadataAttribute('debian_release')
if install_gce == 'true':
logging.info('Installing GCE packages.')
utils.update_apt(g)
utils.install_apt_package(g, 'gnupg')
g.command([
'wget', 'https://packages.cloud.google.com/apt/doc/apt-key.gpg',
'-O', '/tmp/gce_key'
])
g.command(['apt-key', 'add', '/tmp/gce_key'])
g.rm('/tmp/gce_key')
g.write('/etc/apt/sources.list.d/google-cloud.list',
google_cloud.format(deb_release=deb_release))
# Remove Azure agent.
try:
g.command(
['apt-get', 'remove', '-y', '-f', 'waagent', 'walinuxagent'])
except Exception as e:
logging.debug(str(e))
logging.warn('Could not uninstall Azure agent. Continuing anyway.')
utils.update_apt(g)
utils.install_apt_package(g, 'google-cloud-packages-archive-keyring')
utils.install_apt_package(g, 'google-cloud-sdk')
utils.install_apt_package(g, 'google-compute-engine')
utils.install_apt_package(g, 'python-google-compute-engine')
utils.install_apt_package(g, 'python3-google-compute-engine')
# Update grub config to log to console.
g.command([
'sed', '-i""', r'/GRUB_CMDLINE_LINUX/s#"$# console=ttyS0,38400n8"#',
'/etc/default/grub'
])
# Disable predictive network interface naming in Stretch.
if deb_release == 'stretch':
g.command([
'sed', '-i',
r's#^\(GRUB_CMDLINE_LINUX=".*\)"$#\1 net.ifnames=0 biosdevname=0"#',
'/etc/default/grub'
])
g.command(['update-grub2'])
# Reset network for DHCP.
logging.info('Resetting network to DHCP for eth0.')
g.write('/etc/network/interfaces', interfaces)
def DistroSpecific(g):
ubuntu_release = utils.GetMetadataAttribute('ubuntu_release')
install_gce = utils.GetMetadataAttribute('install_gce_packages')
# If present, remove any hard coded DNS settings in resolvconf.
# This is a common workaround to include permanent changes:
# https://askubuntu.com/questions/157154
if g.exists('/etc/resolvconf/resolv.conf.d/base'):
logging.info('Resetting resolvconf base.')
run(g, 'echo "" > /etc/resolvconf/resolv.conf.d/base')
# Reset the network to DHCP.
if ubuntu_release == 'trusty':
g.write('/etc/network/interfaces', network_trusty)
elif ubuntu_release == 'xenial':
g.write('/etc/network/interfaces', network_xenial)
elif g.is_dir('/etc/netplan'):
run(g, 'rm -f /etc/netplan/*.yaml')
g.write('/etc/netplan/config.yaml', network_netplan)
run(g, 'netplan apply')
if install_gce == 'true':
utils.update_apt(g)
setup_cloud_init(g)
remove_azure_agents(g)
if g.gcp_image_major > '14':
install_osconfig_agent(g)
utils.install_apt_packages(g, 'gce-compute-image-packages')
install_cloud_sdk(g, ubuntu_release)
# Update grub config to log to console.
run(g, [
'sed', '-i',
r's#^\(GRUB_CMDLINE_LINUX=".*\)"$#\1 console=ttyS0,38400n8"#',
'/etc/default/grub'
])
run(g, ['update-grub2'])
def DistroSpecific(g):
ubu_release = utils.GetMetadataAttribute('ubuntu_release')
install_gce = utils.GetMetadataAttribute('install_gce_packages')
# Remove any hard coded DNS settings in resolvconf.
if ubu_release != 'bionic':
logging.info('Resetting resolvconf base.')
g.sh('echo "" > /etc/resolvconf/resolv.conf.d/base')
# Try to reset the network to DHCP.
if ubu_release == 'trusty':
g.write('/etc/network/interfaces', trusty_network)
elif ubu_release == 'xenial':
g.write('/etc/network/interfaces', xenial_network)
if install_gce == 'true':
utils.update_apt(g)
logging.info('Installing cloud-init.')
utils.install_apt_package(g, 'cloud-init')
# Try to remove azure or aws configs so cloud-init has a chance.
g.sh('rm -f /etc/cloud/cloud.cfg.d/*azure*')
g.sh('rm -f /etc/cloud/cloud.cfg.d/*curtin*')
g.sh('rm -f /etc/cloud/cloud.cfg.d/*waagent*')
g.sh('rm -f /etc/cloud/cloud.cfg.d/*walinuxagent*')
g.sh('rm -f /etc/cloud/cloud.cfg.d/*aws*')
g.sh('rm -f /etc/cloud/cloud.cfg.d/*amazon*')
if ubu_release == 'bionic':
g.sh('rm -f /etc/netplan/*')
logging.debug(g.sh('cloud-init clean'))
remove_azure_agents(g)
g.write('/etc/apt/sources.list.d/partner.list',
partner_list.format(ubu_release=ubu_release))
g.write('/etc/cloud/cloud.cfg.d/91-gce-system.cfg', gce_system)
# Use host machine as http proxy so cloud-init can access GCE API
with open('/etc/tinyproxy/tinyproxy.conf', 'w') as cfg:
cfg.write(tinyproxy_cfg)
utils.Execute(['/etc/init.d/tinyproxy', 'restart'])
default_gw = g.sh("ip route | awk '/default/ { printf $3 }'")
try:
logging.debug(
g.sh('http_proxy="http://%s:8888" cloud-init -d init' %
default_gw))
except Exception as e:
logging.debug('Failed to run cloud-init. Details: {}.'.format(e))
raise RuntimeError(
'Failed to run cloud-init. Connect to a shell in the original VM '
'and ensure that the following command executes successfully: '
'apt-get install -y --no-install-recommends cloud-init '
'&& cloud-init -d init')
logging.info('Installing GCE packages.')
utils.update_apt(g)
utils.install_apt_package(g, 'gce-compute-image-packages')
utils.install_apt_package(g, 'google-cloud-sdk')
# Update grub config to log to console.
g.command([
'sed', '-i',
r's#^\(GRUB_CMDLINE_LINUX=".*\)"$#\1 console=ttyS0,38400n8"#',
'/etc/default/grub'
])
g.command(['update-grub2'])
