def rsync_mountpoints(src_inst, src_vol, src_mnt, dst_inst, dst_vol, dst_mnt,
encr=False):
"""Run `rsync` against mountpoints, copy disk label.
:param src_inst: source instance;
:param src_vol: source volume with label that will be copied to
dst_vol;
:param src_mnt: root or directory hierarchy to replicate;
:param dst_inst: destination instance;
:param dst_vol: destination volume, that will be marked with label
from src_vol;
:param dst_mnt: destination point where source hierarchy to place;
:param encr: True if volume is encrypted;
:type encr: bool."""
src_key_filename = config.get(src_inst.region.name, 'KEY_FILENAME')
dst_key_filename = config.get(dst_inst.region.name, 'KEY_FILENAME')
with config_temp_ssh(dst_inst.connection) as key_file:
with settings(host_string=dst_inst.public_dns_name,
key_filename=dst_key_filename):
wait_for_sudo('cp /root/.ssh/authorized_keys '
'/root/.ssh/authorized_keys.bak')
pub_key = local('ssh-keygen -y -f {0}'.format(key_file), True)
append('/root/.ssh/authorized_keys', pub_key, use_sudo=True)
if encr:
sudo('screen -d -m sh -c "nc -l 60000 | gzip -dfc | '
'sudo dd of={0} bs=16M"'
.format(get_vol_dev(dst_vol)), pty=False) # dirty magick
dst_ip = sudo(
'curl http://169.254.169.254/latest/meta-data/public-ipv4')
with settings(host_string=src_inst.public_dns_name,
key_filename=src_key_filename):
put(key_file, '.ssh/', mirror_local_mode=True)
dst_key_filename = os.path.split(key_file)[1]
if encr:
sudo('(dd if={0} bs=16M | gzip -cf --fast | nc -v {1} 60000)'
.format(get_vol_dev(src_vol), dst_ip))
else:
cmd = (
'rsync -e "ssh -i .ssh/{key_file} -o '
'StrictHostKeyChecking=no" -cahHAX --delete --inplace '
'--exclude /root/.bash_history '
'--exclude /home/*/.bash_history '
'--exclude /etc/ssh/moduli --exclude /etc/ssh/ssh_host_* '
'--exclude /etc/udev/rules.d/*persistent-net.rules '
'--exclude /var/lib/ec2/* --exclude=/mnt/* '
'--exclude=/proc/* --exclude=/tmp/* '
'{src_mnt}/ root@{rhost}:{dst_mnt}')
wait_for_sudo(cmd.format(
rhost=dst_inst.public_dns_name, dst_mnt=dst_mnt,
key_file=dst_key_filename, src_mnt=src_mnt))
label = sudo('e2label {0}'.format(get_vol_dev(src_vol)))
with settings(host_string=dst_inst.public_dns_name,
key_filename=dst_key_filename):
if not encr:
sudo('e2label {0} {1}'.format(get_vol_dev(dst_vol), label))
wait_for_sudo('mv /root/.ssh/authorized_keys.bak '
'/root/.ssh/authorized_keys')
wait_for_sudo('sync', shell=False)
wait_for_sudo('for i in {1..20}; do sync; sleep 1; done &')
def modify_kernel(region, instance_id):
"""
Modify old kernel for stopped instance (needed for make pv-grub working)
.. note:: install grub-legacy-ec2 and upgrades before run this.
region
specify instance region;
instance_id
specify instance id for kernel change
Kernels list:
ap-southeast-1 x86_64 aki-11d5aa43
ap-southeast-1 i386 aki-13d5aa41
eu-west-1 x86_64 aki-4feec43b
eu-west-1 i386 aki-4deec439
us-east-1 x86_64 aki-427d952b
us-east-1 i386 aki-407d9529
us-west-1 x86_64 aki-9ba0f1de
us-west-1 i386 aki-99a0f1dc"""
key_filename = config.get(region, 'KEY_FILENAME')
conn = get_region_conn(region)
instance = get_inst_by_id(conn.region.name, instance_id)
env.update({
'host_string': instance.public_dns_name,
'key_filename': key_filename,
})
sudo('env DEBIAN_FRONTEND=noninteractive apt-get update && '
'env DEBIAN_FRONTEND=noninteractive apt-get dist-upgrade && '
'env DEBIAN_FRONTEND=noninteractive apt-get install grub-legacy-ec2')
kernel = config.get(conn.region.name,
'KERNEL' + instance.architecture.upper())
instance.stop()
wait_for(instance, 'stopped')
instance.modify_attribute('kernel', kernel)
instance.start()
def modify_kernel(region, instance_id):
"""
Modify old kernel for stopped instance (needed for make pv-grub working)
.. note:: install grub-legacy-ec2 and upgrades before run this.
region
specify instance region;
instance_id
specify instance id for kernel change
Kernels list:
ap-southeast-1 x86_64 aki-11d5aa43
ap-southeast-1 i386 aki-13d5aa41
eu-west-1 x86_64 aki-4feec43b
eu-west-1 i386 aki-4deec439
us-east-1 x86_64 aki-427d952b
us-east-1 i386 aki-407d9529
us-west-1 x86_64 aki-9ba0f1de
us-west-1 i386 aki-99a0f1dc"""
key_filename = config.get(region, 'KEY_FILENAME')
conn = get_region_conn(region)
instance = get_inst_by_id(conn.region.name, instance_id)
env.update({
'host_string': instance.public_dns_name,
'key_filename': key_filename,
})
sudo('env DEBIAN_FRONTEND=noninteractive apt-get update && '
'env DEBIAN_FRONTEND=noninteractive apt-get dist-upgrade && '
'env DEBIAN_FRONTEND=noninteractive apt-get install grub-legacy-ec2')
kernel = config.get(conn.region.name,
'KERNEL' + instance.architecture.upper())
instance.stop()
wait_for(instance, 'stopped')
instance.modify_attribute('kernel', kernel)
instance.start()
def rsync_mountpoints(src_inst, src_vol, src_mnt, dst_inst, dst_vol, dst_mnt,
encr=False):
"""Run `rsync` against mountpoints, copy disk label.
:param src_inst: source instance;
:param src_vol: source volume with label that will be copied to
dst_vol;
:param src_mnt: root or directory hierarchy to replicate;
:param dst_inst: destination instance;
:param dst_vol: destination volume, that will be marked with label
from src_vol;
:param dst_mnt: destination point where source hierarchy to place;
:param encr: True if volume is encrypted;
:type encr: bool."""
src_key_filename = config.get(src_inst.region.name, 'KEY_FILENAME')
dst_key_filename = config.get(dst_inst.region.name, 'KEY_FILENAME')
with config_temp_ssh(dst_inst.connection) as key_file:
with settings(host_string=dst_inst.public_dns_name,
key_filename=dst_key_filename):
wait_for_sudo('cp /root/.ssh/authorized_keys '
'/root/.ssh/authorized_keys.bak')
pub_key = local('ssh-keygen -y -f {0}'.format(key_file), True)
append('/root/.ssh/authorized_keys', pub_key, use_sudo=True)
if encr:
sudo('screen -d -m sh -c "nc -l 60000 | gzip -dfc | '
'sudo dd of={0} bs=16M"'
.format(get_vol_dev(dst_vol)), pty=False) # dirty magick
dst_ip = sudo(
'curl http://169.254.169.254/latest/meta-data/public-ipv4')
with settings(host_string=src_inst.public_dns_name,
key_filename=src_key_filename):
put(key_file, '.ssh/', mirror_local_mode=True)
dst_key_filename = os.path.split(key_file)[1]
if encr:
sudo('(dd if={0} bs=16M | gzip -cf --fast | nc -v {1} 60000)'
.format(get_vol_dev(src_vol), dst_ip))
else:
cmd = (
'rsync -e "ssh -i .ssh/{key_file} -o '
'StrictHostKeyChecking=no" -cahHAX --delete --inplace '
'--exclude /root/.bash_history '
'--exclude /home/*/.bash_history '
'--exclude /etc/ssh/moduli --exclude /etc/ssh/ssh_host_* '
'--exclude /etc/udev/rules.d/*persistent-net.rules '
'--exclude /var/lib/ec2/* --exclude=/mnt/* '
'--exclude=/proc/* --exclude=/tmp/* '
'{src_mnt}/ root@{rhost}:{dst_mnt}')
wait_for_sudo(cmd.format(
rhost=dst_inst.public_dns_name, dst_mnt=dst_mnt,
key_file=dst_key_filename, src_mnt=src_mnt))
label = sudo('e2label {0}'.format(get_vol_dev(src_vol)))
with settings(host_string=dst_inst.public_dns_name,
key_filename=dst_key_filename):
if not encr:
sudo('e2label {0} {1}'.format(get_vol_dev(dst_vol), label))
wait_for_sudo('mv /root/.ssh/authorized_keys.bak '
'/root/.ssh/authorized_keys')
run('sync', shell=False)
run('for i in {1..20}; do sync; sleep 1; done &')
def freeze_volume():
key_filename = config.get(inst.region.name, 'KEY_FILENAME')
try:
_user = config.get('SYNC', 'USERNAME')
except:
_user = USERNAME
with settings(host_string=inst.public_dns_name,
key_filename=key_filename, user=_user):
run('sync', shell=False)
run('for i in {1..20}; do sync; sleep 1; done &')
def freeze_volume():
key_filename = config.get(inst.region.name, 'KEY_FILENAME')
try:
_user = config.get('SYNC', 'USERNAME')
except:
_user = USERNAME
with settings(host_string=inst.public_dns_name,
key_filename=key_filename, user=_user):
wait_for_sudo('sync', shell=False)
run('for i in {1..20}; do sudo sync; sleep 1; done &')
def launch_instance_from_ami(region_name,
ami_id,
inst_type=None,
security_groups='',
key_pair=None,
zone_name=None,
user_data=None):
"""Create instance from specified AMI.
region_name
location of the AMI and new instance;
ami_id
"ami-..."
inst_type
by default will be fetched from AMI description or used
't1.micro' if not mentioned in the description;
security_groups
list of AWS Security Groups names formatted as string separated
with semicolon ';'
key_pair
name of key_pair to be granted access. Will be fetched from
config by default, may be configured per region;
zone_name
in string format;
user_data
string with OS configuration commands."""
conn = get_region_conn(region_name)
image = conn.get_all_images([ami_id])[0]
inst_type = inst_type or get_descr_attr(image, 'Type') or 't1.micro'
security_groups = filter(None, security_groups.strip(';').split(';'))
security_groups.append(new_security_group(conn.region))
logger.info('Launching new instance in {reg} using {image}'.format(
reg=conn.region, image=image))
inst = image.run(key_name=key_pair
or config.get(conn.region.name, 'KEY_PAIR'),
security_groups=security_groups,
instance_type=inst_type,
user_data=user_data
or config.get('user_data', 'USER_DATA'),
placement=zone_name).instances[0]
wait_for(inst, 'running', limit=10 * 60)
groups = [grp.name for grp in inst.groups]
inst.add_tag('Security Groups', dumps(groups, separators=(',', ':')))
add_tags(inst, image.tags)
modify_instance_termination(conn.region.name, inst.id)
logger.info('{inst} created in {inst.placement}'.format(inst=inst))
info = ('\nYou may now SSH into the {inst} server, using:'
'\n ssh -i {key} {user}@{inst.public_dns_name}')
key_file = config.get(conn.region.name, 'KEY_FILENAME')
logger.info(info.format(inst=inst, user=env.user, key=key_file))
return inst
def adduser(username,
region=None,
instance_ids=None,
passwordless=None,
sudo=None):
"""
creates new <username> with public SSH key on "host1;host2" list in
<region>. If you want to create passwordless account - set any value to
<passwrdless> variable, if you want sudo rights - set any value to <sudo>.
File with public key must be in same directory.
If region and instance_ids not set - script takes hosts amd key values
from command line (-H and -i).
Usage:
1. WIthout aws api keys and config present:
:<username>,<passwordless=1>,<sudo=1> - in this case you have to specify
hosts list in -H and your own account in -u fabric parameters.
2. With aws api keys and config entries:
:<username>,<region>,"instance1;instance2",<passwordless>,<sudo>
Extracts IP's from instance description.
"""
if instance_ids and region:
instances_ids = list(unicode(instance_ids).split(';'))
for inst in instances_ids:
if inst:
_instance = get_inst_by_id(region, inst)
if not env.key_filename:
key_filename = config.get(_instance.region.name,
'KEY_FILENAME')
env.update({'key_filename': key_filename})
env.update({'host_string': _instance.public_dns_name})
_create_account(username, region, instance_ids, passwordless,
sudo)
else:
_create_account(username, region, instance_ids, passwordless, sudo)
def adduser(username, region=None, instance_ids=None,
passwordless=None, sudo=None):
"""
creates new <username> with public SSH key on "host1;host2" list in
<region>. If you want to create passwordless account - set any value to
<passwrdless> variable, if you want sudo rights - set any value to <sudo>.
File with public key must be in same directory.
If region and instance_ids not set - script takes hosts amd key values
from command line (-H and -i).
Usage:
1. WIthout aws api keys and config present:
:<username>,<passwordless=1>,<sudo=1> - in this case you have to specify
hosts list in -H and your own account in -u fabric parameters.
2. With aws api keys and config entries:
:<username>,<region>,"instance1;instance2",<passwordless>,<sudo>
Extracts IP's from instance description.
"""
if instance_ids and region:
instances_ids = list(unicode(instance_ids).split(';'))
for inst in instances_ids:
if inst:
_instance = get_inst_by_id(region, inst)
if not env.key_filename:
key_filename = config.get(_instance.region.name,
'KEY_FILENAME')
env.update({'key_filename': key_filename})
env.update({'host_string': _instance.public_dns_name})
_create_account(username, region, instance_ids, passwordless,
sudo)
else:
_create_account(username, region, instance_ids, passwordless, sudo)
def cleanup_security_groups(delete=False):
"""
Delete unused AWS Security Groups.
:type delete: boolean
:param delete: notify only (i.e. False) by default.
If security group with the same name is used at least in one region,
it is treated as used.
"""
groups = defaultdict(lambda: {})
used_groups = set(
['default', config.get('DEFAULT', 'HTTPS_SECURITY_GROUP')])
regions = get_region_conn().get_all_regions()
for reg in regions:
for s_g in get_region_conn(reg.name).get_all_security_groups():
groups[s_g.name][reg] = s_g
if s_g.instances(): # Security Group is used by instance.
used_groups.add(s_g.name)
for rule in s_g.rules:
for grant in rule.grants:
if grant.name and grant.owner_id == s_g.owner_id:
used_groups.add(grant.name) # SG is used by group.
for grp in used_groups:
del groups[grp]
for grp in sorted(groups):
if delete:
for reg in groups[grp]:
s_g = groups[grp][reg]
logger.info('Deleting {0} in {1}'.format(s_g, reg))
s_g.delete()
else:
msg = '"SecurityGroup:{grp}" should be removed from {regs}'
logger.info(msg.format(grp=grp, regs=groups[grp].keys()))
def cleanup_security_groups(delete=False):
"""
Delete unused AWS Security Groups.
:type delete: boolean
:param delete: notify only (i.e. False) by default.
If security group with the same name is used at least in one region,
it is treated as used.
"""
groups = defaultdict(lambda: {})
used_groups = set(["default", config.get("DEFAULT", "HTTPS_SECURITY_GROUP")])
regions = get_region_conn().get_all_regions()
for reg in regions:
for s_g in get_region_conn(reg.name).get_all_security_groups():
groups[s_g.name][reg] = s_g
if s_g.instances(): # Security Group is used by instance.
used_groups.add(s_g.name)
for rule in s_g.rules:
for grant in rule.grants:
if grant.name and grant.owner_id == s_g.owner_id:
used_groups.add(grant.name) # SG is used by group.
for grp in used_groups:
del groups[grp]
for grp in sorted(groups):
if delete:
for reg in groups[grp]:
s_g = groups[grp][reg]
logger.info("Deleting {0} in {1}".format(s_g, reg))
s_g.delete()
else:
msg = '"SecurityGroup:{grp}" should be removed from {regs}'
logger.info(msg.format(grp=grp, regs=groups[grp].keys()))
def attach_snap_to_inst(inst, snap):
"""Cleanup volume(s)."""
wait_for(inst, 'running')
try:
vol, volumes = force_snap_attach(inst, snap)
if encr:
mnt = None
else:
mnt = mount_volume(vol)
yield vol, mnt
except BaseException as err:
logger.exception(str(err))
raise
finally:
key_filename = config.get(inst.region.name, 'KEY_FILENAME')
with settings(host_string=inst.public_dns_name,
key_filename=key_filename):
if not encr:
try:
wait_for_sudo('umount {0}'.format(mnt))
except:
pass
for vol in volumes:
if vol.status != 'available':
vol.detach(force=True)
wait_for(vol, 'available', limit=DETACH_TIME)
logger.info('Deleting {vol} in {vol.region}.'.format(vol=vol))
vol.delete()
def deluser(name, region=None, instance_ids=None):
"""
Removes user <name> with deluser from "host1;host2" list in <region>
If region and instance_ids not set - script takes hosts amd key values
from command line (-H and -i).
"""
if instance_ids and region:
instances_ids = list(unicode(instance_ids).split(';'))
for inst in instances_ids:
if inst:
_instance = get_inst_by_id(region, inst)
if not env.key_filename:
key_filename = config.get(_instance.region.name,
'KEY_FILENAME')
env.update({
'key_filename': key_filename,
'warn_only': True
})
env.update({'host_string': _instance.public_dns_name})
env.username = name
_sudo('deluser %(username)s' % env)
else:
env.update({'warn_only': True})
env.username = name
_sudo('deluser %(username)s' % env)
def modify_instance_termination(region, instance_id):
"""Mark production instnaces as uneligible for termination.
region
name of region where instance is located;
instance_id
instance to be updated;
You must change value of preconfigured tag_name and run this command
before terminating production instance via API."""
conn = get_region_conn(region)
inst = get_inst_by_id(conn.region.name, instance_id)
prod_tag = config.get('DEFAULT', 'TAG_NAME')
prod_val = config.get('DEFAULT', 'TAG_VALUE')
inst_tag_val = inst.tags.get(prod_tag)
inst.modify_attribute('disableApiTermination', inst_tag_val == prod_val)
def modify_instance_termination(region, instance_id):
"""Mark production instnaces as uneligible for termination.
region
name of region where instance is located;
instance_id
instance to be updated;
You must change value of preconfigured tag_name and run this command
before terminating production instance via API."""
conn = get_region_conn(region)
inst = get_inst_by_id(conn.region.name, instance_id)
prod_tag = config.get('DEFAULT', 'TAG_NAME')
prod_val = config.get('DEFAULT', 'TAG_VALUE')
inst_tag_val = inst.tags.get(prod_tag)
inst.modify_attribute('disableApiTermination', inst_tag_val == prod_val)
def attach_snap_to_inst(inst, snap):
"""Cleanup volume(s)."""
wait_for(inst, 'running')
try:
vol, volumes = force_snap_attach(inst, snap)
if encr:
mnt = None
else:
mnt = mount_volume(vol)
yield vol, mnt
except BaseException as err:
logger.exception(str(err))
raise
finally:
key_filename = config.get(inst.region.name, 'KEY_FILENAME')
with settings(host_string=inst.public_dns_name,
key_filename=key_filename):
if not encr:
try:
wait_for_sudo('umount {0}'.format(mnt))
except:
pass
for vol in volumes:
if vol.status != 'available':
vol.detach(force=True)
wait_for(vol, 'available', limit=DETACH_TIME)
logger.info('Deleting {vol} in {vol.region}.'.format(vol=vol))
vol.delete()
def mount_snapshot(region_name, snap_id, inst_id=None):
"""Mount snapshot to temporary created instance or inst_id.
region_name, snap_id
specify snapshot.
inst_id
attach to existing instance. Will be created temporary if
None."""
conn = get_region_conn(region_name)
inst = get_inst_by_id(conn.region.name, inst_id) if inst_id else None
snap = conn.get_all_snapshots(snapshot_ids=[snap_id, ])[0]
info = ('\nYou may now SSH into the {inst} server, using:'
'\n ssh -i {key} {user}@{inst.public_dns_name}')
with attach_snapshot(snap, inst=inst) as (vol, mountpoint):
if mountpoint:
info += ('\nand browse snapshot, mounted at {mountpoint}.')
else:
info += ('\nand mount {device}. NOTE: device name may be '
'altered by system.')
key_file = config.get(conn.region.name, 'KEY_FILENAME')
inst = get_inst_by_id(conn.region.name, vol.attach_data.instance_id)
assert inst
logger.info(info.format(inst=inst, user=env.user, key=key_file,
device=vol.attach_data.device, mountpoint=mountpoint))
info = ('\nEnter FINISHED if you are finished looking at the '
'backup and would like to cleanup: ')
while raw_input(info).strip() != 'FINISHED':
pass
def create_inst_in_zone(zone, key_pair, sec_grps):
inst = create_instance(zone.region.name,
zone.name,
key_pair=key_pair,
security_groups=sec_grps)
inst.add_tag(config.get('DEFAULT', 'TAG_NAME'), 'temporary')
return inst
def launch_instance_from_ami(
region_name, ami_id, inst_type=None, security_groups='', key_pair=None,
zone_name=None, user_data=None):
"""Create instance from specified AMI.
region_name
location of the AMI and new instance;
ami_id
"ami-..."
inst_type
by default will be fetched from AMI description or used
't1.micro' if not mentioned in the description;
security_groups
list of AWS Security Groups names formatted as string separated
with semicolon ';'
key_pair
name of key_pair to be granted access. Will be fetched from
config by default, may be configured per region;
zone_name
in string format;
user_data
string with OS configuration commands."""
conn = get_region_conn(region_name)
image = conn.get_all_images([ami_id])[0]
inst_type = inst_type or get_descr_attr(image, 'Type') or 't1.micro'
security_groups = filter(None, security_groups.strip(';').split(';'))
security_groups.append(new_security_group(conn.region))
logger.info('Launching new instance in {reg} using {image}'
.format(reg=conn.region, image=image))
inst = image.run(
key_name=key_pair or config.get(conn.region.name, 'KEY_PAIR'),
security_groups=security_groups,
instance_type=inst_type,
user_data=user_data or config.get('user_data', 'USER_DATA'),
placement=zone_name).instances[0]
wait_for(inst, 'running', limit=10 * 60)
groups = [grp.name for grp in inst.groups]
inst.add_tag('Security Groups', dumps(groups, separators=(',', ':')))
add_tags(inst, image.tags)
modify_instance_termination(conn.region.name, inst.id)
logger.info('{inst} created in {inst.placement}'.format(inst=inst))
info = ('\nYou may now SSH into the {inst} server, using:'
'\n ssh -i {key} {user}@{inst.public_dns_name}')
key_file = config.get(conn.region.name, 'KEY_FILENAME')
logger.info(info.format(inst=inst, user=env.user, key=key_file))
return inst
def create_instance(
region_name='us-east-1', zone_name=None, key_pair=None,
security_groups='', architecture=None, user_data=None, inst_type=None):
"""
Create AWS EC2 instance.
Return created instance.
region_name
by default will be created in the us-east-1 region;
zone_name
string-formatted name, may be omitted;
key_pair
name of key_pair to be granted access. Will be fetched from
config by default, may be configured per region;
security_groups
list of AWS Security Groups names formatted as string separated
with semicolon ';';
architecture
"i386" or "x86_64";
inst_type
by default will be fetched from AMI description or used
't1.micro' if not mentioned in the description.
"""
conn = get_region_conn(region_name)
ami_ptrn = config.get(conn.region.name, 'AMI_PTRN')
architecture = architecture or config.get('DEFAULT', 'ARCHITECTURE')
ubuntu_aws_account = config.get('DEFAULT', 'UBUNTU_AWS_ACCOUNT')
filters = {'owner_id': ubuntu_aws_account, 'architecture': architecture,
'name': ami_ptrn, 'image_type': 'machine',
'root_device_type': 'ebs'}
images = conn.get_all_images(filters=filters)
# Filter AMI by latest version.
ptrn = re.compile(config.get(conn.region.name, 'AMI_REGEXP'))
versions = set([ptrn.search(img.name).group('version') for img in images])
def complement(year_month):
return '0' + year_month if len(year_month) == 4 else year_month
latest_version = sorted(set(filter(complement, versions)))[-1] # XXX Y3K.
ami_ptrn_with_version = config.get(
conn.region.name, 'AMI_PTRN_WITH_VERSION')
name_with_version = ami_ptrn_with_version.format(version=latest_version)
filters.update({'name': name_with_version})
images = conn.get_all_images(filters=filters)
# Filter AMI by latest release date.
dates = set([ptrn.search(img.name).group('released_at') for img in images])
latest_date = sorted(set(dates))[-1]
ami_ptrn_with_release_date = config.get(
conn.region.name, 'AMI_PTRN_WITH_RELEASE_DATE')
name_with_version_and_release = ami_ptrn_with_release_date.format(
version=latest_version, released_at=latest_date)
filters.update({'name': name_with_version_and_release})
image = conn.get_all_images(filters=filters)[0]
return launch_instance_from_ami(
region_name, image.id, security_groups=security_groups,
key_pair=key_pair, zone_name=zone_name, user_data=user_data,
inst_type=inst_type)
def create_tmp_volume(region, size):
"""Format new filesystem."""
with create_temp_inst(region) as inst:
earmarking_tag = config.get(region.name, 'TAG_NAME')
try:
vol = get_region_conn(region.name).create_volume(size,
inst.placement)
vol.add_tag(earmarking_tag, 'temporary')
vol.attach(inst.id, get_avail_dev(inst))
yield vol, mount_volume(vol, mkfs=True)
finally:
vol.detach(force=True)
wait_for(vol, 'available', limit=DETACH_TIME)
vol.delete()
def create_tmp_volume(region, size):
"""Format new filesystem."""
with create_temp_inst(region) as inst:
earmarking_tag = config.get(region.name, 'TAG_NAME')
try:
vol = get_region_conn(region.name).create_volume(size,
inst.placement)
vol.add_tag(earmarking_tag, 'temporary')
vol.attach(inst.id, get_avail_dev(inst))
yield vol, mount_volume(vol, mkfs=True)
finally:
vol.detach(force=True)
wait_for(vol, 'available', limit=DETACH_TIME)
vol.delete()
def get_vol_dev(vol):
"""Return OS-specific volume representation as attached device."""
assert vol.attach_data.instance_id
inst = get_inst_by_id(vol.region.name, vol.attach_data.instance_id)
assert inst.public_dns_name, 'Instance is down'
key_filename = config.get(vol.region.name, 'KEY_FILENAME')
attached_dev = vol.attach_data.device
natty_dev = attached_dev.replace('sd', 'xvd')
representations = [attached_dev, natty_dev]
with settings(host_string=inst.public_dns_name, key_filename=key_filename):
logger.debug(env, output)
for dev in representations:
if wait_for_exists(dev):
return dev
raise NoDevFoundError(
'Nothing from {variants} was located at {host.state} {host} for '
'{vol} with {vol.attach_data.__dict__}'.format(
host=inst, vol=vol, variants=representations))
def get_vol_dev(vol):
"""Return OS-specific volume representation as attached device."""
assert vol.attach_data.instance_id
inst = get_inst_by_id(vol.region.name, vol.attach_data.instance_id)
assert inst.public_dns_name, 'Instance is down'
key_filename = config.get(vol.region.name, 'KEY_FILENAME')
attached_dev = vol.attach_data.device
natty_dev = attached_dev.replace('sd', 'xvd')
representations = [attached_dev, natty_dev]
with settings(host_string=inst.public_dns_name, key_filename=key_filename):
logger.debug(env, output)
for dev in representations:
if wait_for_exists(dev):
return dev
raise NoDevFoundError(
'Nothing from {variants} was located at {host.state} {host} for '
'{vol} with {vol.attach_data.__dict__}'.format(
host=inst, vol=vol, variants=representations))
def force_snap_attach(inst, snap):
"""Iterate over devices until successful attachment."""
volumes_to_delete = []
while get_avail_dev(inst):
vol = inst.connection.create_volume(snap.volume_size,
inst.placement, snap)
add_tags(vol, snap.tags)
vol.add_tag(config.get('DEFAULT', 'TAG_NAME'), 'temporary')
volumes_to_delete.append(vol)
dev_name = get_avail_dev(inst)
logger.debug('Got avail {0} from {1}'.format(dev_name, inst))
vol.attach(inst.id, dev_name)
try:
wait_for(vol, 'attached', ['attach_data', 'status'])
except StateNotChangedError:
logger.error('Attempt to attach as next device')
else:
break
return vol, volumes_to_delete
def force_snap_attach(inst, snap):
"""Iterate over devices until successful attachment."""
volumes_to_delete = []
while get_avail_dev(inst):
vol = inst.connection.create_volume(snap.volume_size,
inst.placement, snap)
add_tags(vol, snap.tags)
vol.add_tag(config.get('DEFAULT', 'TAG_NAME'), 'temporary')
volumes_to_delete.append(vol)
dev_name = get_avail_dev(inst)
logger.debug('Got avail {0} from {1}'.format(dev_name, inst))
vol.attach(inst.id, dev_name)
try:
wait_for(vol, 'attached', ['attach_data', 'status'])
except StateNotChangedError:
logger.error('Attempt to attach as next device')
else:
break
return vol, volumes_to_delete
def mount_volume(vol, mkfs=False):
"""Mount the device by SSH. Return mountpoint on success.
vol
volume to be mounted on the instance it is attached to."""
wait_for(vol, 'attached', ['attach_data', 'status'])
inst = get_inst_by_id(vol.region.name, vol.attach_data.instance_id)
key_filename = config.get(vol.region.name, 'KEY_FILENAME')
with settings(host_string=inst.public_dns_name, key_filename=key_filename):
dev = get_vol_dev(vol)
mountpoint = dev.replace('/dev/', '/media/')
wait_for_sudo('mkdir -p {0}'.format(mountpoint))
if mkfs:
sudo('mkfs.ext3 {dev}'.format(dev=dev))
sudo('mount {dev} {mnt}'.format(dev=dev, mnt=mountpoint))
if mkfs:
sudo('chown -R {user}:{user} {mnt}'.format(user=env.user,
mnt=mountpoint))
logger.debug('Mounted {0} to {1} at {2}'.format(vol, inst, mountpoint))
return mountpoint
def mount_volume(vol, mkfs=False):
"""Mount the device by SSH. Return mountpoint on success.
vol
volume to be mounted on the instance it is attached to."""
wait_for(vol, 'attached', ['attach_data', 'status'])
inst = get_inst_by_id(vol.region.name, vol.attach_data.instance_id)
key_filename = config.get(vol.region.name, 'KEY_FILENAME')
with settings(host_string=inst.public_dns_name, key_filename=key_filename):
dev = get_vol_dev(vol)
mountpoint = dev.replace('/dev/', '/media/')
wait_for_sudo('mkdir -p {0}'.format(mountpoint))
if mkfs:
sudo('mkfs.ext3 {dev}'.format(dev=dev))
sudo('mount {dev} {mnt}'.format(dev=dev, mnt=mountpoint))
if mkfs:
sudo('chown -R {user}:{user} {mnt}'.format(user=env.user,
mnt=mountpoint))
logger.debug('Mounted {0} to {1} at {2}'.format(vol, inst, mountpoint))
return mountpoint
def deluser(name, region=None, instance_ids=None):
"""
Removes user <name> with deluser from "host1;host2" list in <region>
If region and instance_ids not set - script takes hosts amd key values
from command line (-H and -i).
"""
if instance_ids and region:
instances_ids = list(unicode(instance_ids).split(';'))
for inst in instances_ids:
if inst:
_instance = get_inst_by_id(region, inst)
if not env.key_filename:
key_filename = config.get(_instance.region.name,
'KEY_FILENAME')
env.update({'key_filename': key_filename,
'warn_only': True})
env.update({'host_string': _instance.public_dns_name})
env.username = name
_sudo('deluser %(username)s' % env)
else:
env.update({'warn_only': True})
env.username = name
_sudo('deluser %(username)s' % env)
def mount_snapshot(region_name, snap_id, inst_id=None):
"""Mount snapshot to temporary created instance or inst_id.
region_name, snap_id
specify snapshot.
inst_id
attach to existing instance. Will be created temporary if
None."""
conn = get_region_conn(region_name)
inst = get_inst_by_id(conn.region.name, inst_id) if inst_id else None
snap = conn.get_all_snapshots(snapshot_ids=[
snap_id,
])[0]
info = ('\nYou may now SSH into the {inst} server, using:'
'\n ssh -i {key} {user}@{inst.public_dns_name}')
with attach_snapshot(snap, inst=inst) as (vol, mountpoint):
if mountpoint:
info += ('\nand browse snapshot, mounted at {mountpoint}.')
else:
info += ('\nand mount {device}. NOTE: device name may be '
'altered by system.')
key_file = config.get(conn.region.name, 'KEY_FILENAME')
inst = get_inst_by_id(conn.region.name, vol.attach_data.instance_id)
assert inst
logger.info(
info.format(inst=inst,
user=env.user,
key=key_file,
device=vol.attach_data.device,
mountpoint=mountpoint))
info = ('\nEnter FINISHED if you are finished looking at the '
'backup and would like to cleanup: ')
while raw_input(info).strip() != 'FINISHED':
pass
from boto.ec2.blockdevicemapping import BlockDeviceMapping, EBSBlockDeviceType, BlockDeviceType
from boto.exception import BotoServerError
from fabric.api import env, output, prompt, put, settings, sudo, task
from fabric.context_managers import hide
from pkg_resources import resource_stream
from django_fabfile import __name__ as pkg_name
from django_fabfile.security_groups import new_security_group
from django_fabfile.utils import (StateNotChangedError, add_tags, config,
config_temp_ssh, get_descr_attr,
get_inst_by_id, get_region_conn,
get_snap_device, get_snap_instance,
get_snap_time, timestamp, wait_for,
wait_for_exists, wait_for_sudo)
USERNAME = config.get('DEFAULT', 'USERNAME')
env.update({'user': USERNAME, 'disable_known_hosts': True})
logger = logging.getLogger(__name__)
DETACH_TIME = config.getint('DEFAULT', 'MINUTES_FOR_DETACH') * 60
SNAP_TIME = config.getint('DEFAULT', 'MINUTES_FOR_SNAP') * 60
@task
def create_instance(region_name='us-east-1',
zone_name=None,
key_pair=None,
security_groups='',
architecture=None,
user_data=None,
def create_instance(region_name='us-east-1',
zone_name=None,
key_pair=None,
security_groups='',
architecture=None,
user_data=None,
inst_type=None):
"""
Create AWS EC2 instance.
Return created instance.
region_name
by default will be created in the us-east-1 region;
zone_name
string-formatted name, may be omitted;
key_pair
name of key_pair to be granted access. Will be fetched from
config by default, may be configured per region;
security_groups
list of AWS Security Groups names formatted as string separated
with semicolon ';';
architecture
"i386" or "x86_64";
inst_type
by default will be fetched from AMI description or used
't1.micro' if not mentioned in the description.
"""
conn = get_region_conn(region_name)
ami_ptrn = config.get(conn.region.name, 'AMI_PTRN')
architecture = architecture or config.get('DEFAULT', 'ARCHITECTURE')
ubuntu_aws_account = config.get('DEFAULT', 'UBUNTU_AWS_ACCOUNT')
filters = {
'owner_id': ubuntu_aws_account,
'architecture': architecture,
'name': ami_ptrn,
'image_type': 'machine',
'root_device_type': 'ebs'
}
images = conn.get_all_images(filters=filters)
# Filter AMI by latest version.
ptrn = re.compile(config.get(conn.region.name, 'AMI_REGEXP'))
versions = set([ptrn.search(img.name).group('version') for img in images])
def complement(year_month):
return '0' + year_month if len(year_month) == 4 else year_month
latest_version = sorted(set(filter(complement, versions)))[-1] # XXX Y3K.
ami_ptrn_with_version = config.get(conn.region.name,
'AMI_PTRN_WITH_VERSION')
name_with_version = ami_ptrn_with_version.format(version=latest_version)
filters.update({'name': name_with_version})
images = conn.get_all_images(filters=filters)
# Filter AMI by latest release date.
dates = set([ptrn.search(img.name).group('released_at') for img in images])
latest_date = sorted(set(dates))[-1]
ami_ptrn_with_release_date = config.get(conn.region.name,
'AMI_PTRN_WITH_RELEASE_DATE')
name_with_version_and_release = ami_ptrn_with_release_date.format(
version=latest_version, released_at=latest_date)
filters.update({'name': name_with_version_and_release})
image = conn.get_all_images(filters=filters)[0]
return launch_instance_from_ami(region_name,
image.id,
security_groups=security_groups,
key_pair=key_pair,
zone_name=zone_name,
user_data=user_data,
inst_type=inst_type)
def create_ami(region,
snap_id,
force=None,
root_dev='/dev/sda1',
zone_name=None,
default_arch=None,
default_type='t1.micro',
security_groups=''):
"""
Creates AMI image from given snapshot.
Force option removes prompt request and creates new instance from
created ami image.
region, snap_id
specify snapshot to be processed. Snapshot description in json
format will be used to restore instance with same parameters.
Will automaticaly process snapshots for same instance with near
time (10 minutes or shorter), but for other devices (/dev/sdb,
/dev/sdc, etc);
force
Run instance from ami after creation without confirmation. To
enable set value to "RUN";
default_arch
architecture to use if not mentioned in snapshot description;
default_type
instance type to use if not mentioned in snapshot description.
Used only if ``force`` is "RUN";
security_groups
list of AWS Security Groups names formatted as string separated
with semicolon ';'. Used only if ``force`` is "RUN".
"""
conn = get_region_conn(region)
snap = conn.get_all_snapshots(snapshot_ids=[
snap_id,
])[0]
instance_id = get_snap_instance(snap)
_device = get_snap_device(snap)
snaps = conn.get_all_snapshots(owner='self')
snapshots = [
snp for snp in snaps if get_snap_instance(snp) == instance_id
and get_snap_device(snp) != _device and
abs(get_snap_time(snap) - get_snap_time(snp)) <= timedelta(minutes=10)
]
snapshot = sorted(snapshots, key=get_snap_time,
reverse=True) if snapshots else None
# setup for building an EBS boot snapshot
default_arch = default_arch or config.get('DEFAULT', 'ARCHITECTURE')
arch = get_descr_attr(snap, 'Arch') or default_arch
kernel = config.get(conn.region.name, 'KERNEL' + arch.upper())
dev = re.match(r'^/dev/sda$', _device) # if our instance encrypted
if dev:
kernel = config.get(conn.region.name, 'KERNEL_ENCR_' + arch.upper())
ebs = EBSBlockDeviceType()
ebs.snapshot_id = snap_id
ebs.delete_on_termination = True
block_map = BlockDeviceMapping()
block_map[_device] = ebs
sdb = BlockDeviceType()
sdb.ephemeral_name = 'ephemeral0'
block_map['/dev/sdb'] = sdb
if snapshot:
for s in snapshot:
s_dev = get_snap_device(s)
s_ebs = EBSBlockDeviceType()
s_ebs.delete_on_termination = True
s_ebs.snapshot_id = s.id
block_map[s_dev] = s_ebs
name = 'Created {0} using access key {1}'.format(timestamp(),
conn.access_key)
name = name.replace(":", ".").replace(" ", "_")
# create the new AMI all options from snap JSON description:
wait_for(snap, '100%', limit=SNAP_TIME)
result = conn.register_image(
name=name,
description=snap.description,
architecture=get_descr_attr(snap, 'Arch') or default_arch,
root_device_name=get_descr_attr(snap, 'Root_dev_name') or root_dev,
block_device_map=block_map,
kernel_id=kernel)
sleep(2)
image = conn.get_all_images(image_ids=[
result,
])[0]
wait_for(image, 'available', limit=10 * 60)
add_tags(image, snap.tags)
logger.info('The new AMI ID = {0}'.format(result))
info = ('\nEnter RUN if you want to launch instance using '
'just created {0}: '.format(image))
new_instance = None
if force == 'RUN' or raw_input(info).strip() == 'RUN':
instance_type = get_descr_attr(snap, 'Type') or default_type
new_instance = launch_instance_from_ami(
region,
image.id,
inst_type=instance_type,
security_groups=security_groups,
zone_name=zone_name)
return image, new_instance
from boto.exception import EC2ResponseError
from dateutil.parser import parse
from dateutil.relativedelta import relativedelta
from dateutil.tz import tzutc
from fabric.api import env, local, put, settings, sudo, task, run
from fabric.contrib.files import append
from django_fabfile.instances import (attach_snapshot, create_temp_inst,
get_avail_dev, get_vol_dev, mount_volume)
from django_fabfile.utils import (
StateNotChangedError, add_tags, config, config_temp_ssh,
get_descr_attr, get_inst_by_id, get_region_conn, get_snap_device,
get_snap_time, get_snap_vol, timestamp, wait_for, wait_for_sudo)
USERNAME = config.get('DEFAULT', 'USERNAME')
env.update({'user': USERNAME, 'disable_known_hosts': True})
logger = logging.getLogger(__name__)
DEFAULT_TAG_NAME = config.get('DEFAULT', 'TAG_NAME')
DEFAULT_TAG_VALUE = config.get('DEFAULT', 'TAG_VALUE')
DESCRIPTION_TAG = 'Description'
SNAP_STATUSES = ['pending', 'completed'] # All but "error".
VOL_STATUSES = ['creating', 'available', 'in-use']
DETACH_TIME = config.getint('DEFAULT', 'MINUTES_FOR_DETACH') * 60
SNAP_TIME = config.getint('DEFAULT', 'MINUTES_FOR_SNAP') * 60
REPLICATION_SPEED = config.getfloat('DEFAULT', 'REPLICATION_SPEED')
def create_inst_in_zone(zone, key_pair, sec_grps):
inst = create_instance(zone.region.name, zone.name, key_pair=key_pair,
security_groups=sec_grps)
inst.add_tag(config.get('DEFAULT', 'TAG_NAME'), 'temporary')
return inst
from boto.ec2.blockdevicemapping import BlockDeviceMapping, EBSBlockDeviceType, BlockDeviceType
from boto.exception import BotoServerError
from fabric.api import env, output, prompt, put, settings, sudo, task
from fabric.context_managers import hide
from pkg_resources import resource_stream
from django_fabfile import __name__ as pkg_name
from django_fabfile.security_groups import new_security_group
from django_fabfile.utils import (
StateNotChangedError, add_tags, config, config_temp_ssh, get_descr_attr,
get_inst_by_id, get_region_conn, get_snap_device, get_snap_instance,
get_snap_time, timestamp, wait_for, wait_for_exists, wait_for_sudo,
copy_ami_to_regions)
USERNAME = config.get('DEFAULT', 'USERNAME')
env.update({'user': USERNAME, 'disable_known_hosts': True})
logger = logging.getLogger(__name__)
DETACH_TIME = config.getint('DEFAULT', 'MINUTES_FOR_DETACH') * 60
SNAP_TIME = config.getint('DEFAULT', 'MINUTES_FOR_SNAP') * 60
@task
def create_instance(
region_name='us-east-1', zone_name=None, key_pair=None,
security_groups='', architecture=None, user_data=None, inst_type=None):
"""
Create AWS EC2 instance.
def create_encrypted_instance(region_name,
release='lucid',
volume_size='8',
architecture=None,
type='t1.micro',
name='encr_root',
pw1=None,
pw2=None,
security_groups=''):
"""
Creates ubuntu instance with luks-encryted root volume.
region_name
Region where you want to create instance;
release
Ubuntu release name (lucid or natty). "lucid" by default;
volume_size
Size of volume in Gb (always remember, that script creates boot volume
with size 1Gb, so minimal size of whole volume is 3Gb (1Gb for /boot
2Gb for /)). 8 by default;
architecture
"i386" or "x86_64".
type
Type of instance. 't1.micro' by default;
name
Name of luks encrypted volume. 'encr_root' by default;
pw1, pw2
You can specify passwords in parameters to suppress password prompt;
security_groups
List of AWS Security Groups names formatted as string separated
with semicolon ';'.
To unlock go to https://ip_address_of_instance (only after reboot
or shutdown).
You can set up to 8 passwords. Defaut boot.key and boot.crt created
for .amazonaws.com so must work for all instances. Process of
creation is about 20 minutes long."""
assert volume_size >= 3, '1 GiB for /boot and 2 GiB for /'
conn = get_region_conn(region_name)
with config_temp_ssh(conn) as key_filename:
key_pair = os.path.splitext(os.path.split(key_filename)[1])[0]
zn = conn.get_all_zones()[-1]
with create_temp_inst(zone=zn, key_pair=key_pair) as inst:
vol = conn.create_volume(size=volume_size, zone=zn)
dev = get_avail_dev_encr(inst)
vol.attach(inst.id, dev)
arch = architecture or config.get('DEFAULT', 'ARCHITECTURE')
ubuntu_arch = 'amd64' if arch == 'x86_64' else arch
make_encrypted_ubuntu(inst.public_dns_name, key_filename, 'ubuntu',
ubuntu_arch, dev, name, release, pw1, pw2)
description = dumps({
'Volume': vol.id,
'Region': vol.region.name,
'Device': '/dev/sda',
'Type': type,
'Arch': arch,
'Root_dev_name': '/dev/sda1',
'Time': timestamp(),
})
snap = vol.create_snapshot(description)
wait_for(snap, '100%', limit=SNAP_TIME)
vol.detach(force=True)
wait_for(vol, 'available', limit=DETACH_TIME)
vol.delete()
HTTPS_SG = config.get('DEFAULT', 'HTTPS_SECURITY_GROUP')
security_groups = ';'.join([security_groups, HTTPS_SG])
img, new_instance = create_ami(region_name,
snap.id,
'RUN',
security_groups=security_groups)
logger.info('\nTo unlock go to:\n https://{0}\n'.format(
new_instance.public_dns_name))
img.deregister()
snap.delete()
from boto.exception import EC2ResponseError
from dateutil.parser import parse
from dateutil.relativedelta import relativedelta
from dateutil.tz import tzutc
from fabric.api import env, local, put, settings, sudo, task, run
from fabric.contrib.files import append
from django_fabfile.instances import (attach_snapshot, create_temp_inst,
get_avail_dev, get_vol_dev, mount_volume)
from django_fabfile.utils import (
StateNotChangedError, add_tags, config, config_temp_ssh,
get_descr_attr, get_inst_by_id, get_region_conn, get_snap_device,
get_snap_time, get_snap_vol, timestamp, wait_for, wait_for_sudo)
USERNAME = config.get('DEFAULT', 'USERNAME')
env.update({'user': USERNAME, 'disable_known_hosts': True})
logger = logging.getLogger(__name__)
DEFAULT_TAG_NAME = config.get('DEFAULT', 'TAG_NAME')
DEFAULT_TAG_VALUE = config.get('DEFAULT', 'TAG_VALUE')
DESCRIPTION_TAG = 'Description'
SNAP_STATUSES = ['pending', 'completed'] # All but "error".
VOL_STATUSES = ['creating', 'available', 'in-use']
DETACH_TIME = config.getint('DEFAULT', 'MINUTES_FOR_DETACH') * 60
SNAP_TIME = config.getint('DEFAULT', 'MINUTES_FOR_SNAP') * 60
REPLICATION_SPEED = config.getfloat('DEFAULT', 'REPLICATION_SPEED')
def create_ami(region, snap_id, force=None, root_dev='/dev/sda1', zone_name=None,
default_arch=None, default_type='t1.micro', security_groups=''):
"""
Creates AMI image from given snapshot.
Force option removes prompt request and creates new instance from
created ami image.
region, snap_id
specify snapshot to be processed. Snapshot description in json
format will be used to restore instance with same parameters.
Will automaticaly process snapshots for same instance with near
time (10 minutes or shorter), but for other devices (/dev/sdb,
/dev/sdc, etc);
force
Run instance from ami after creation without confirmation. To
enable set value to "RUN";
default_arch
architecture to use if not mentioned in snapshot description;
default_type
instance type to use if not mentioned in snapshot description.
Used only if ``force`` is "RUN";
security_groups
list of AWS Security Groups names formatted as string separated
with semicolon ';'. Used only if ``force`` is "RUN".
"""
conn = get_region_conn(region)
snap = conn.get_all_snapshots(snapshot_ids=[snap_id, ])[0]
instance_id = get_snap_instance(snap)
_device = get_snap_device(snap)
snaps = conn.get_all_snapshots(owner='self')
snapshots = [snp for snp in snaps if
get_snap_instance(snp) == instance_id and
get_snap_device(snp) != _device and
abs(get_snap_time(snap) - get_snap_time(snp)) <= timedelta(minutes=10)]
snapshot = sorted(snapshots, key=get_snap_time,
reverse=True) if snapshots else None
# setup for building an EBS boot snapshot
default_arch = default_arch or config.get('DEFAULT', 'ARCHITECTURE')
arch = get_descr_attr(snap, 'Arch') or default_arch
kernel = config.get(conn.region.name, 'KERNEL' + arch.upper())
dev = re.match(r'^/dev/sda$', _device) # if our instance encrypted
if dev:
kernel = config.get(conn.region.name, 'KERNEL_ENCR_' + arch.upper())
ebs = EBSBlockDeviceType()
ebs.snapshot_id = snap_id
ebs.delete_on_termination = True
block_map = BlockDeviceMapping()
block_map[_device] = ebs
sdb = BlockDeviceType()
sdb.ephemeral_name = 'ephemeral0'
block_map['/dev/sdb'] = sdb
if snapshot:
for s in snapshot:
s_dev = get_snap_device(s)
s_ebs = EBSBlockDeviceType()
s_ebs.delete_on_termination = True
s_ebs.snapshot_id = s.id
block_map[s_dev] = s_ebs
name = 'Created {0} using access key {1}'.format(timestamp(),
conn.access_key)
name = name.replace(":", ".").replace(" ", "_")
# create the new AMI all options from snap JSON description:
wait_for(snap, '100%', limit=SNAP_TIME)
result = conn.register_image(
name=name,
description=snap.description,
architecture=get_descr_attr(snap, 'Arch') or default_arch,
root_device_name=get_descr_attr(snap, 'Root_dev_name') or root_dev,
block_device_map=block_map, kernel_id=kernel)
sleep(2)
image = conn.get_all_images(image_ids=[result, ])[0]
wait_for(image, 'available', limit=10 * 60)
add_tags(image, snap.tags)
logger.info('The new AMI ID = {0}'.format(result))
new_instance = None
if force == 'RUN':
instance_type = get_descr_attr(snap, 'Type') or default_type
new_instance = launch_instance_from_ami(
region, image.id, inst_type=instance_type,
security_groups=security_groups, zone_name=zone_name)
return image, new_instance
def create_encrypted_instance(
region_name, release='lucid', volume_size='8', architecture=None,
type='t1.micro', name='encr_root', pw1=None, pw2=None, security_groups=''):
"""
Creates ubuntu instance with luks-encryted root volume.
region_name
Region where you want to create instance;
release
Ubuntu release name (lucid or natty). "lucid" by default;
volume_size
Size of volume in Gb (always remember, that script creates boot volume
with size 1Gb, so minimal size of whole volume is 3Gb (1Gb for /boot
2Gb for /)). 8 by default;
architecture
"i386" or "x86_64".
type
Type of instance. 't1.micro' by default;
name
Name of luks encrypted volume. 'encr_root' by default;
pw1, pw2
You can specify passwords in parameters to suppress password prompt;
security_groups
List of AWS Security Groups names formatted as string separated
with semicolon ';'.
To unlock go to https://ip_address_of_instance (only after reboot
or shutdown).
You can set up to 8 passwords. Defaut boot.key and boot.crt created
for .amazonaws.com so must work for all instances. Process of
creation is about 20 minutes long."""
assert volume_size >= 3, '1 GiB for /boot and 2 GiB for /'
conn = get_region_conn(region_name)
with config_temp_ssh(conn) as key_filename:
key_pair = os.path.splitext(os.path.split(key_filename)[1])[0]
zn = conn.get_all_zones()[-1]
with create_temp_inst(zone=zn, key_pair=key_pair) as inst:
vol = conn.create_volume(size=volume_size, zone=zn)
dev = get_avail_dev_encr(inst)
vol.attach(inst.id, dev)
arch = architecture or config.get('DEFAULT', 'ARCHITECTURE')
ubuntu_arch = 'amd64' if arch == 'x86_64' else arch
make_encrypted_ubuntu(inst.public_dns_name, key_filename, 'ubuntu',
ubuntu_arch, dev, name, release, pw1, pw2)
description = dumps({
'Volume': vol.id,
'Region': vol.region.name,
'Device': '/dev/sda',
'Type': type,
'Arch': arch,
'Root_dev_name': '/dev/sda1',
'Time': timestamp(),
})
snap = vol.create_snapshot(description)
wait_for(snap, '100%', limit=SNAP_TIME)
vol.detach(force=True)
wait_for(vol, 'available', limit=DETACH_TIME)
vol.delete()
HTTPS_SG = config.get('DEFAULT', 'HTTPS_SECURITY_GROUP')
security_groups = ';'.join([security_groups, HTTPS_SG])
img, new_instance = create_ami(region_name, snap.id, 'RUN',
security_groups=security_groups)
logger.info('\nTo unlock go to:\n https://{0}\n'
.format(new_instance.public_dns_name))
img.deregister()
snap.delete()
'All rights reserved.').format(date.today().year)
# Set up a specific logger with desired output level
LOG_FORMAT = '%(asctime)-15s %(levelname)s:%(message)s'
LOG_DATEFORMAT = '%Y-%m-%d %H:%M:%S %Z'
logger = logging.getLogger()
debug = config.getboolean('DEFAULT', 'DEBUG')
if debug:
logger.setLevel(logging.DEBUG)
output['debug'] = True
else:
logger.setLevel(logging.INFO)
logging_folder = config.get('DEFAULT', 'LOGGING_FOLDER')
if logging_folder:
LOG_FILENAME = os.path.join(logging_folder, __name__ + '.log')
handler = logging.handlers.TimedRotatingFileHandler(LOG_FILENAME,
'midnight',
backupCount=30)
class StreamLogger():
def __init__(self, level=logging.INFO):
self.logger = logging.getLogger(__name__)
self.level = level
def write(self, row):
row = row.strip()
if row:
self.logger.log(self.level, row)
from fabric.api import env, settings, sudo, abort, put, task
from os.path import isfile as _isfile
from django_fabfile.utils import config, get_inst_by_id
try:
preconfigured_user = config.get('DEFAULT', 'USERNAME')
except:
pass # Expecting user to be provided as `-u` option.
else:
FABRIC_DEFAULT_USER = '******' # XXX `-u user` will be overridden.
if env['user'] == FABRIC_DEFAULT_USER: # Not provided as `-u` option.
env.update({'user': preconfigured_user})
env.update({'disable_known_hosts': True})
def _sudo(cmd):
""" Shows output of cmd and allows interaction """
sudo(cmd, shell=False, pty=True)
def _create_account(username, region, instance_ids, passwordless, sudo):
if not _isfile(username + '.pub'):
abort("%s.pub does not exist" % username)
env.ssh_key = username + '.pub'
env.username = username # Own attribute for string formatting.
if passwordless:
_sudo('adduser --disabled-password %(username)s' % env)
if sudo:
_sudo('sed -i "s/# %sudo ALL=NOPASSWD: ALL/'
'All rights reserved.').format(date.today().year)
# Set up a specific logger with desired output level
LOG_FORMAT = '%(asctime)-15s %(levelname)s:%(message)s'
LOG_DATEFORMAT = '%Y-%m-%d %H:%M:%S %Z'
logger = logging.getLogger()
debug = config.getboolean('DEFAULT', 'DEBUG')
if debug:
logger.setLevel(logging.DEBUG)
output['debug'] = True
else:
logger.setLevel(logging.INFO)
logging_folder = config.get('DEFAULT', 'LOGGING_FOLDER')
if logging_folder:
LOG_FILENAME = os.path.join(logging_folder, __name__ + '.log')
handler = logging.handlers.TimedRotatingFileHandler(
LOG_FILENAME, 'midnight', backupCount=30)
class StreamLogger():
def __init__(self, level=logging.INFO):
self.logger = logging.getLogger(__name__)
self.level = level
def write(self, row):
row = row.strip()
if row:
self.logger.log(self.level, row)
from fabric.api import env, settings, sudo, abort, put, task
from os.path import isfile as _isfile
from django_fabfile.utils import config, get_inst_by_id
try:
preconfigured_user = config.get('DEFAULT', 'USERNAME')
except:
pass # Expecting user to be provided as `-u` option.
else:
FABRIC_DEFAULT_USER = '******' # XXX `-u user` will be overridden.
if env['user'] == FABRIC_DEFAULT_USER: # Not provided as `-u` option.
env.update({'user': preconfigured_user})
env.update({'disable_known_hosts': True})
def _sudo(cmd):
""" Shows output of cmd and allows interaction """
sudo(cmd, shell=False, pty=True)
def _create_account(username, region, instance_ids, passwordless, sudo):
if not _isfile(username + '.pub'):
abort("%s.pub does not exist" % username)
env.ssh_key = username + '.pub'
env.username = username # Own attribute for string formatting.
if passwordless:
_sudo('adduser --disabled-password %(username)s' % env)
if sudo:
from fabric.api import env, sudo, settings, task
from fabric.state import output
from django_fabfile.utils import config
master = config.get("RDBMS", "MASTER")
backup = config.get("RDBMS", "BACKUP")
username = config.get("DEFAULT", "USERNAME")
pcp_password = config.get("RDBMS", "PCP_PASSWORD")
env.update({"disable_known_hosts": True, "user": username, "warn_only": True})
output.update({"running": False})
def return_(master, backup, node_id):
with settings(host_string=master):
sudo(
'su postgres -c "pcp_attach_node 60 127.0.0.1 9898 postgres'
' {pcp_password} {node_id}"'.format(node_id=node_id, pcp_password=pcp_password)
)
with settings(host_string=backup):
sudo(
'su postgres -c "pcp_attach_node 60 127.0.0.1 9898 postgres'
' {pcp_password} {node_id}"'.format(node_id=node_id, pcp_password=pcp_password)
)
def failover(new_primary_host, old_primary_host, failed_node_id, master_node_id):
trigger = "/var/log/pgpool/trigger/trigger_file1"
with settings(host_string=new_primary_host):
from fabric.api import env, sudo, settings, task
from fabric.state import output
from django_fabfile.utils import config
master = config.get('RDBMS', 'MASTER')
backup = config.get('RDBMS', 'BACKUP')
username = config.get('DEFAULT', 'USERNAME')
pcp_password = config.get('RDBMS', 'PCP_PASSWORD')
env.update({'disable_known_hosts': True, 'user': username, 'warn_only': True})
output.update({'running': False})
def return_(master, backup, node_id):
with settings(host_string=master):
sudo('su postgres -c "pcp_attach_node 60 127.0.0.1 9898 postgres'
' {pcp_password} {node_id}"'.format(node_id=node_id,
pcp_password=pcp_password))
with settings(host_string=backup):
sudo('su postgres -c "pcp_attach_node 60 127.0.0.1 9898 postgres'
' {pcp_password} {node_id}"'.format(node_id=node_id,
pcp_password=pcp_password))
def failover(new_primary_host, old_primary_host, failed_node_id,
master_node_id):
trigger = '/var/log/pgpool/trigger/trigger_file1'
with settings(host_string=new_primary_host):
sudo('su postgres -c "touch {trigger}"'.format(trigger=trigger))
sudo('su postgres -c "/usr/local/etc/dnsmadeeasy-update.sh'