def _base_context(self, project_name='dummy1'):
stackname = '%s--test' % project_name
context = cfngen.build_context(project_name, stackname=stackname)
context_handler.write_context(stackname, context)
template = cfngen.render_template(context)
cfngen.write_template(stackname, template)
return context
def update_salt(stackname):
"updates the Salt version installed on the instances for the given stack"
# start instance if it is stopped
# acquire a lock from Alfred (if possible) so instance isn't shutdown while being updated
cfn._check_want_to_be_running(stackname, autostart=True)
context = context_handler.load_context(stackname)
if not context.get('ec2'):
LOG.info("no ec2 context. skipping: %s", stackname)
return
pdata = core.project_data_for_stackname(stackname)
LOG.info("upgrading salt minion")
context['project']['salt'] = pdata['salt']
LOG.info("updating context")
context_handler.write_context(stackname, context)
LOG.info("updating buildvars")
buildvars.refresh(stackname, context)
LOG.info("updating nodes")
bootstrap.update_ec2_stack(stackname, context, concurrency='serial')
return True
def remaster(stackname, new_master_stackname):
"tell minion who their new master is. deletes any existing master key on minion"
# TODO: turn this into a decorator
import cfn
# start the machine if it's stopped
# you might also want to acquire a lock so alfred doesn't stop things
cfn._check_want_to_be_running(stackname, 1)
master_ip = _cached_master_ip(new_master_stackname)
LOG.info('re-mastering %s to %s', stackname, master_ip)
context = context_handler.load_context(stackname)
# remove if no longer an issue
# if context.get('ec2') == True:
# # TODO: duplicates bad ec2 data wrangling in cfngen.build_context
# # ec2 == True for some reason, which is completely useless
# LOG.warn("bad context for stack: %s", stackname)
# context['ec2'] = {}
# context['project']['aws']['ec2'] = {}
if not context.get('ec2'):
LOG.info("no ec2 context, skipping %s", stackname)
return
if context['ec2'].get('master_ip') == master_ip:
LOG.info("already remastered: %s", stackname)
try:
utils.confirm("Skip?")
return
except KeyboardInterrupt:
LOG.info("not skipping")
LOG.info("upgrading salt client")
pdata = core.project_data_for_stackname(stackname)
context['project']['salt'] = pdata['salt']
LOG.info("setting new master address")
cfngen.set_master_address(pdata, context, master_ip) # mutates context
# update context
LOG.info("updating context")
context_handler.write_context(stackname, context)
# update buildvars
LOG.info("updating buildvars")
buildvars.refresh(stackname, context)
# remove knowledge of old master
def work():
remote_sudo("rm -f /etc/salt/pki/minion/minion_master.pub"
) # destroy the old master key we have
LOG.info("removing old master key from minion")
core.stack_all_ec2_nodes(stackname, work, username=config.BOOTSTRAP_USER)
# update ec2 nodes
LOG.info("updating nodes")
bootstrap.update_ec2_stack(stackname, context, concurrency='serial')
return True
def remaster(stackname, new_master_stackname):
"tell minion who their new master is. deletes any existing master key on minion"
# TODO: turn this into a decorator
import cfn
# start the machine if it's stopped
# you might also want to acquire a lock so alfred doesn't stop things
cfn._check_want_to_be_running(stackname, 1)
master_ip = _cached_master_ip(new_master_stackname)
LOG.info('re-mastering %s to %s', stackname, master_ip)
context = context_handler.load_context(stackname)
# remove if no longer an issue
# if context.get('ec2') == True:
# # TODO: duplicates bad ec2 data wrangling in cfngen.build_context
# # ec2 == True for some reason, which is completely useless
# LOG.warn("bad context for stack: %s", stackname)
# context['ec2'] = {}
# context['project']['aws']['ec2'] = {}
if not context.get('ec2'):
LOG.info("no ec2 context, skipping %s", stackname)
return
if context['ec2'].get('master_ip') == master_ip:
LOG.info("already remastered: %s", stackname)
try:
utils.confirm("Skip?")
return
except KeyboardInterrupt:
LOG.info("not skipping")
LOG.info("upgrading salt client")
pdata = core.project_data_for_stackname(stackname)
context['project']['salt'] = pdata['salt']
LOG.info("setting new master address")
cfngen.set_master_address(pdata, context, master_ip) # mutates context
# update context
LOG.info("updating context")
context_handler.write_context(stackname, context)
# update buildvars
LOG.info("updating buildvars")
buildvars.refresh(stackname, context)
# remove knowledge of old master
def work():
sudo("rm -f /etc/salt/pki/minion/minion_master.pub") # destroy the old master key we have
LOG.info("removing old master key from minion")
core.stack_all_ec2_nodes(stackname, work, username=config.BOOTSTRAP_USER)
# update ec2 nodes
LOG.info("updating nodes")
bootstrap.update_ec2_stack(stackname, context, concurrency='serial')
return True
def _base_context(self, project_name='dummy1', in_memory=False, existing_context=None):
environment_name = base.generate_environment_name()
stackname = '%s--%s' % (project_name, environment_name)
context = cfngen.build_context(project_name, stackname=stackname, existing_context=existing_context if existing_context is not None else {})
if not in_memory:
context_handler.write_context(stackname, context)
template = cloudformation.render_template(context)
cloudformation.write_template(stackname, template)
return context
def _base_context(self, project_name='dummy1', in_memory=False, existing_context=None):
environment_name = base.generate_environment_name()
stackname = '%s--%s' % (project_name, environment_name)
context = cfngen.build_context(project_name, stackname=stackname, existing_context=existing_context if existing_context is not None else {})
if not in_memory:
context_handler.write_context(stackname, context)
template = cloudformation.render_template(context)
cloudformation.write_template(stackname, template)
return context
def update_infrastructure(stackname, skip=None, start=['ec2']):
"""Limited update of the Cloudformation template and/or Terraform template.
Resources can be added, but most of the existing ones are immutable.
Some resources are updatable in place.
Moreover, we never add anything related to EC2 instances as they are
not supported anyway (they will come up as part of the template
but without any software being on it)
Moreover, EC2 instances must be running while this is executed or their
resources like PublicIP will be inaccessible.
Allows to skip EC2, SQS, S3 updates by passing `skip=ec2\\,sqs\\,s3`
By default starts EC2 instances but this can be avoid by passing `start=`"""
skip = skip.split(",") if skip else []
start = start.split(",") if isinstance(start, str) else start or []
(pname, _) = core.parse_stackname(stackname)
more_context = {}
context, delta, current_context = cfngen.regenerate_stack(
stackname, **more_context)
if _are_there_existing_servers(current_context) and 'ec2' in start:
core_lifecycle.start(stackname)
LOG.info("Create: %s", pformat(delta.plus))
LOG.info("Update: %s", pformat(delta.edit))
LOG.info("Delete: %s", pformat(delta.minus))
LOG.info("Terraform delta: %s", delta.terraform)
# see: `buildercore.config.BUILDER_NON_INTERACTIVE` for skipping confirmation prompts
utils.confirm(
'Confirming changes to CloudFormation and Terraform templates?')
context_handler.write_context(stackname, context)
cloudformation.update_template(stackname, delta.cloudformation)
terraform.update_template(stackname)
# TODO: move inside bootstrap.update_stack
# EC2
if _are_there_existing_servers(context) and not 'ec2' in skip:
# the /etc/buildvars.json file may need to be updated
buildvars.refresh(stackname, context)
update(stackname)
# SQS
if context.get('sqs', {}) and not 'sqs' in skip:
bootstrap.update_stack(stackname, service_list=['sqs'])
# S3
if context.get('s3', {}) and not 's3' in skip:
bootstrap.update_stack(stackname, service_list=['s3'])
def test_storing_a_context_on_s3_and_retrieving_it_from_a_new_client(self):
stackname = 'dummy1--prod'
context = cfngen.build_context('dummy1', stackname=stackname)
context_handler.write_context(stackname, context)
expected = context_handler.load_context(stackname)
remove(context_handler.local_context_file(stackname))
downloaded = context_handler.load_context(stackname)
self.assertEqual(expected, downloaded)
def test_storing_a_context_on_s3_and_retrieving_it_from_a_new_client(self):
stackname = 'dummy1--prod'
context = cfngen.build_context('dummy1', stackname=stackname)
context_handler.write_context(stackname, context)
expected = context_handler.load_context(stackname)
remove(context_handler.local_context_file(stackname))
downloaded = context_handler.load_context(stackname)
self.assertEqual(expected, downloaded)
def update_infrastructure(stackname, skip=None, start=['ec2']):
"""Limited update of the Cloudformation template and/or Terraform template.
Resources can be added, but most of the existing ones are immutable.
Some resources are updatable in place.
Moreover, we never add anything related to EC2 instances as they are
not supported anyway (they will come up as part of the template
but without any software being on it)
Moreover, EC2 instances must be running while this is executed or their
resources like PublicIP will be inaccessible.
Allows to skip EC2, SQS, S3 updates by passing `skip=ec2\\,sqs\\,s3`
By default starts EC2 instances but this can be avoid by passing `start=`"""
skip = skip.split(",") if skip else []
start = start.split(",") if isinstance(start, str) else start or []
(pname, _) = core.parse_stackname(stackname)
more_context = {}
context, delta, current_context = cfngen.regenerate_stack(stackname, **more_context)
if _are_there_existing_servers(current_context) and 'ec2' in start:
core_lifecycle.start(stackname)
LOG.info("Create: %s", pformat(delta.plus))
LOG.info("Update: %s", pformat(delta.edit))
LOG.info("Delete: %s", pformat(delta.minus))
LOG.info("Terraform delta: %s", delta.terraform)
utils.confirm('Confirming changes to CloudFormation and Terraform templates?')
context_handler.write_context(stackname, context)
cloudformation.update_template(stackname, delta.cloudformation)
terraform.update_template(stackname)
# TODO: move inside bootstrap.update_stack
# EC2
if _are_there_existing_servers(context) and not 'ec2' in skip:
# the /etc/buildvars.json file may need to be updated
buildvars.refresh(stackname, context)
update(stackname)
# SQS
if context.get('sqs', {}) and not 'sqs' in skip:
bootstrap.update_stack(stackname, service_list=['sqs'])
# S3
if context.get('s3', {}) and not 's3' in skip:
bootstrap.update_stack(stackname, service_list=['s3'])
def remaster(stackname, new_master_stackname="master-server--2018-04-09-2"):
"tell minion who their new master is. deletes any existing master key on minion"
# start instance if it is stopped
# acquire a lock from Alfred (if possible) so instance isn't shutdown while being updated
cfn._check_want_to_be_running(stackname, autostart=True)
master_ip = _cached_master_ip(new_master_stackname)
LOG.info('re-mastering %r to %r', stackname, master_ip)
context = context_handler.load_context(stackname)
if not context.get('ec2'):
LOG.info("no ec2 context, skipping %s", stackname)
return
if context['ec2'].get('master_ip') == master_ip:
LOG.info("already remastered: %s", stackname)
return
pdata = core.project_data_for_stackname(stackname)
LOG.info("setting new master address")
cfngen.set_master_address(pdata, context, master_ip) # mutates context
LOG.info("updating context")
context_handler.write_context(stackname, context)
LOG.info("updating buildvars")
buildvars.refresh(stackname, context)
# remove knowledge of old master by destroying the minion's master pubkey
def workerfn():
remote_sudo("rm -f /etc/salt/pki/minion/minion_master.pub")
LOG.info("removing old master key from minion")
core.stack_all_ec2_nodes(stackname,
workerfn,
username=config.BOOTSTRAP_USER)
LOG.info("updating nodes")
# todo: how to pass in --dry-run to highstate.sh ?
bootstrap.update_ec2_stack(stackname, context, concurrency='serial')
return True
def update_template(stackname):
"""Limited update of the Cloudformation template.
Resources can be added, but most of the existing ones are immutable.
Some resources are updatable in place.
Moreover, we never add anything related to EC2 instances as they are
not supported anyway (they will come up as part of the template
but without any software being on it)
Moreover, EC2 instances must be running while this is executed or their
resources like PublicIP will be inaccessible"""
(pname, _) = core.parse_stackname(stackname)
more_context = cfngen.choose_config(stackname)
context, delta_plus, delta_minus = cfngen.regenerate_stack(
pname, **more_context)
if context['ec2']:
core_lifecycle.start(stackname)
LOG.info("Create/update: %s", pformat(delta_plus))
LOG.info("Delete: %s", pformat(delta_minus))
utils.confirm(
'Confirming changes to the stack template? This will rewrite the context and the CloudFormation template'
)
context_handler.write_context(stackname, context)
if delta_plus['Resources'] or delta_plus['Outputs'] or delta_minus[
'Resources'] or delta_minus['Outputs']:
new_template = cfngen.merge_delta(stackname, delta_plus, delta_minus)
bootstrap.update_template(stackname, new_template)
# the /etc/buildvars.json file may need to be updated
buildvars.refresh(stackname, context)
else:
# attempting to apply an empty change set would result in an error
LOG.info("Nothing to update on CloudFormation")
update(stackname)