def render(self, session, logger, cluster, keepbindings, **arguments):
dbcluster = Cluster.get_unique(session, cluster, compel=True)
if not dbcluster.personality.archetype.is_compileable:
raise ArgumentError(
"{0} is not a compilable archetype " "({1!s}).".format(dbcluster, dbcluster.personality.archetype)
)
chooser = Chooser(dbcluster, logger=logger, required_only=not keepbindings)
chooser.set_required()
chooser.flush_changes()
td = TemplateDomain(dbcluster.branch, dbcluster.sandbox_author, logger=logger)
# Force a domain lock as pan might overwrite any of the profiles...
with chooser.get_key():
try:
chooser.write_plenary_templates(locked=True)
td.compile(session, only=chooser.plenaries.object_templates, locked=True)
except:
chooser.restore_stash()
# Okay, cleaned up templates, make sure the caller knows
# we've aborted so that DB can be appropriately rollback'd.
raise
return
def compile(self, session, dbhost, logger, keepbindings):
chooser = Chooser(dbhost, logger=logger,
required_only=not(keepbindings))
chooser.set_required()
chooser.flush_changes()
hosts = chooser.changed_server_fqdns()
hosts.add(dbhost.fqdn)
# Force a host lock as pan might overwrite the profile...
key = chooser.get_write_key()
for fqdn in hosts:
key = CompileKey.merge([key, CompileKey(domain=dbhost.branch.name,
profile=fqdn,
logger=logger)])
try:
lock_queue.acquire(key)
chooser.write_plenary_templates(locked=True)
td = TemplateDomain(dbhost.branch, dbhost.sandbox_author,
logger=logger)
td.compile(session, only=hosts, locked=True)
except:
if chooser:
chooser.restore_stash()
# Okay, cleaned up templates, make sure the caller knows
# we've aborted so that DB can be appropriately rollback'd.
raise
finally:
lock_queue.release(key)
return
def render(self, session, logger, cluster, keepbindings, **arguments):
dbcluster = Cluster.get_unique(session, cluster, compel=True)
if not dbcluster.personality.archetype.is_compileable:
raise ArgumentError("{0} is not a compilable archetype "
"({1!s}).".format(
dbcluster,
dbcluster.personality.archetype))
chooser = Chooser(dbcluster,
logger=logger,
required_only=not (keepbindings))
chooser.set_required()
chooser.flush_changes()
# Force a domain lock as pan might overwrite any of the profiles...
key = CompileKey.merge([
chooser.get_write_key(),
CompileKey(domain=dbcluster.branch.name, logger=logger)
])
try:
lock_queue.acquire(key)
chooser.write_plenary_templates(locked=True)
profile_list = add_cluster_data(dbcluster)
profile_list.extend(chooser.changed_server_fqdns())
td = TemplateDomain(dbcluster.branch,
dbcluster.sandbox_author,
logger=logger)
td.compile(session, only=profile_list, locked=True)
except:
chooser.restore_stash()
# Okay, cleaned up templates, make sure the caller knows
# we've aborted so that DB can be appropriately rollback'd.
raise
finally:
lock_queue.release(key)
return
def compile(self, session, dbhost, logger, keepbindings):
chooser = Chooser(dbhost,
logger=logger,
required_only=not (keepbindings))
chooser.set_required()
chooser.flush_changes()
hosts = chooser.changed_server_fqdns()
hosts.add(dbhost.fqdn)
# Force a host lock as pan might overwrite the profile...
key = chooser.get_write_key()
for fqdn in hosts:
key = CompileKey.merge([
key,
CompileKey(domain=dbhost.branch.name,
profile=fqdn,
logger=logger)
])
try:
lock_queue.acquire(key)
chooser.write_plenary_templates(locked=True)
td = TemplateDomain(dbhost.branch,
dbhost.sandbox_author,
logger=logger)
td.compile(session, only=hosts, locked=True)
except:
if chooser:
chooser.restore_stash()
# Okay, cleaned up templates, make sure the caller knows
# we've aborted so that DB can be appropriately rollback'd.
raise
finally:
lock_queue.release(key)
return
def compile(self, session, dbhost, logger, keepbindings):
chooser = Chooser(dbhost, logger=logger,
required_only=not keepbindings)
chooser.set_required()
chooser.flush_changes()
td = TemplateDomain(dbhost.branch, dbhost.sandbox_author, logger=logger)
with chooser.get_key():
try:
chooser.write_plenary_templates(locked=True)
td.compile(session, only=chooser.plenaries.object_templates,
locked=True)
except:
chooser.restore_stash()
# Okay, cleaned up templates, make sure the caller knows
# we've aborted so that DB can be appropriately rollback'd.
raise
return
def render(self, session, logger, cluster, keepbindings, **arguments):
dbcluster = Cluster.get_unique(session, cluster, compel=True)
if not dbcluster.personality.archetype.is_compileable:
raise ArgumentError("{0} is not a compilable archetype "
"({1!s}).".format(dbcluster,
dbcluster.personality.archetype))
chooser = Chooser(dbcluster, logger=logger,
required_only=not(keepbindings))
chooser.set_required()
chooser.flush_changes()
# Force a domain lock as pan might overwrite any of the profiles...
key = CompileKey.merge([chooser.get_write_key(),
CompileKey(domain=dbcluster.branch.name,
logger=logger)])
try:
lock_queue.acquire(key)
chooser.write_plenary_templates(locked=True)
profile_list = add_cluster_data(dbcluster)
profile_list.extend(chooser.changed_server_fqdns())
td = TemplateDomain(dbcluster.branch, dbcluster.sandbox_author,
logger=logger)
td.compile(session, only=profile_list, locked=True)
except:
chooser.restore_stash()
# Okay, cleaned up templates, make sure the caller knows
# we've aborted so that DB can be appropriately rollback'd.
raise
finally:
lock_queue.release(key)
return
def render(self, session, logger, hostname, cluster,
personality, **arguments):
dbhost = hostname_to_host(session, hostname)
dbcluster = Cluster.get_unique(session, cluster, compel=True)
if dbcluster.status.name == 'decommissioned':
raise ArgumentError("Cannot add hosts to decommissioned clusters.")
# We only support changing personality within the same
# archetype. The archetype decides things like which OS, how
# it builds (dhcp, etc), whether it's compilable, and
# switching all of that by side-effect seems wrong
# somehow. And besides, it would make the user-interface and
# implementation for this command ugly in order to support
# changing all of those options.
personality_change = False
if personality is not None:
dbpersonality = Personality.get_unique(session,
name=personality,
archetype=dbhost.archetype,
compel=True)
if dbhost.personality != dbpersonality:
dbhost.personality = dbpersonality
personality_change = True
# Allow for non-restricted clusters (the default?)
if (len(dbcluster.allowed_personalities) > 0 and
dbhost.personality not in dbcluster.allowed_personalities):
raise ArgumentError("The personality %s for %s is not allowed "
"by the cluster. Specify --personality "
"and provide one of %s" %
(dbhost.personality, dbhost.fqdn,
", ".join([x.name for x in
dbcluster.allowed_personalities])))
# Now that we've changed the personality, we can check
# if this is a valid membership change
dbcluster.validate_membership(dbhost)
plenaries = PlenaryCollection(logger=logger)
plenaries.append(Plenary.get_plenary(dbcluster))
if dbhost.cluster and dbhost.cluster != dbcluster:
logger.client_info("Removing {0:l} from {1:l}.".format(dbhost,
dbhost.cluster))
old_cluster = dbhost.cluster
old_cluster.hosts.remove(dbhost)
remove_service_addresses(old_cluster, dbhost)
old_cluster.validate()
session.expire(dbhost, ['_cluster'])
plenaries.append(Plenary.get_plenary(old_cluster))
# Apply the service addresses to the new member
for res in walk_resources(dbcluster):
if not isinstance(res, ServiceAddress):
continue
apply_service_address(dbhost, res.interfaces, res, logger)
if dbhost.cluster:
if personality_change:
raise ArgumentError("{0:l} already in {1:l}, use "
"aq reconfigure to change personality."
.format(dbhost, dbhost.cluster))
# the cluster has not changed, therefore there's nothing
# to do here.
return
# Calculate the node index: build a map of all possible values, remove
# the used ones, and pick the smallest remaining one
node_index_map = set(xrange(len(dbcluster._hosts) + 1))
for link in dbcluster._hosts:
# The cluster may have been bigger in the past, so node indexes may
# be larger than the current cluster size
try:
node_index_map.remove(link.node_index)
except KeyError:
pass
dbcluster.hosts.append((dbhost, min(node_index_map)))
dbcluster.validate()
# demote a host when switching clusters
# promote a host when switching clusters
if dbhost.status.name == 'ready':
if dbcluster.status.name != 'ready':
dbalmost = HostAlmostready.get_instance(session)
dbhost.status.transition(dbhost, dbalmost)
plenaries.append(Plenary.get_plenary(dbhost))
elif dbhost.status.name == 'almostready':
if dbcluster.status.name == 'ready':
dbready = HostReady.get_instance(session)
dbhost.status.transition(dbhost, dbready)
plenaries.append(Plenary.get_plenary(dbhost))
session.flush()
# Enforce that service instances are set correctly for the
# new cluster association.
chooser = Chooser(dbhost, logger=logger)
chooser.set_required()
chooser.flush_changes()
# the chooser will include the host plenary
with CompileKey.merge([chooser.get_key(), plenaries.get_key()]):
plenaries.stash()
try:
chooser.write_plenary_templates(locked=True)
plenaries.write(locked=True)
except:
chooser.restore_stash()
plenaries.restore_stash()
raise
return
def render(self, session, logger, hostname, cluster, personality,
**arguments):
dbhost = hostname_to_host(session, hostname)
dbcluster = Cluster.get_unique(session, cluster, compel=True)
if dbcluster.status.name == 'decommissioned':
raise ArgumentError("Cannot add hosts to decommissioned clusters.")
# We only support changing personality within the same
# archetype. The archetype decides things like which OS, how
# it builds (dhcp, etc), whether it's compilable, and
# switching all of that by side-effect seems wrong
# somehow. And besides, it would make the user-interface and
# implementation for this command ugly in order to support
# changing all of those options.
personality_change = False
if personality is not None:
dbpersonality = Personality.get_unique(session,
name=personality,
archetype=dbhost.archetype,
compel=True)
if dbhost.personality != dbpersonality:
dbhost.personality = dbpersonality
personality_change = True
# Allow for non-restricted clusters (the default?)
if (len(dbcluster.allowed_personalities) > 0
and dbhost.personality not in dbcluster.allowed_personalities):
raise ArgumentError(
"The personality %s for %s is not allowed "
"by the cluster. Specify --personality "
"and provide one of %s" %
(dbhost.personality, dbhost.fqdn, ", ".join(
[x.name for x in dbcluster.allowed_personalities])))
# Now that we've changed the personality, we can check
# if this is a valid membership change
dbcluster.validate_membership(dbhost)
plenaries = PlenaryCollection(logger=logger)
plenaries.append(Plenary.get_plenary(dbcluster))
if dbhost.cluster and dbhost.cluster != dbcluster:
logger.client_info("Removing {0:l} from {1:l}.".format(
dbhost, dbhost.cluster))
old_cluster = dbhost.cluster
old_cluster.hosts.remove(dbhost)
remove_service_addresses(old_cluster, dbhost)
old_cluster.validate()
session.expire(dbhost, ['_cluster'])
plenaries.append(Plenary.get_plenary(old_cluster))
# Apply the service addresses to the new member
for res in walk_resources(dbcluster):
if not isinstance(res, ServiceAddress):
continue
apply_service_address(dbhost, res.interfaces, res)
if dbhost.cluster:
if personality_change:
raise ArgumentError(
"{0:l} already in {1:l}, use "
"aq reconfigure to change personality.".format(
dbhost, dbhost.cluster))
# the cluster has not changed, therefore there's nothing
# to do here.
return
# Calculate the node index: build a map of all possible values, remove
# the used ones, and pick the smallest remaining one
node_index_map = set(xrange(len(dbcluster._hosts) + 1))
for link in dbcluster._hosts:
# The cluster may have been bigger in the past, so node indexes may
# be larger than the current cluster size
try:
node_index_map.remove(link.node_index)
except KeyError:
pass
dbcluster.hosts.append((dbhost, min(node_index_map)))
dbcluster.validate()
# demote a host when switching clusters
# promote a host when switching clusters
if dbhost.status.name == 'ready':
if dbcluster.status.name != 'ready':
dbalmost = HostLifecycle.get_unique(session,
'almostready',
compel=True)
dbhost.status.transition(dbhost, dbalmost)
plenaries.append(Plenary.get_plenary(dbhost))
elif dbhost.status.name == 'almostready':
if dbcluster.status.name == 'ready':
dbready = HostLifecycle.get_unique(session,
'ready',
compel=True)
dbhost.status.transition(dbhost, dbready)
plenaries.append(Plenary.get_plenary(dbhost))
session.flush()
# Enforce that service instances are set correctly for the
# new cluster association.
chooser = Chooser(dbhost, logger=logger)
chooser.set_required()
chooser.flush_changes()
# the chooser will include the host plenary
key = CompileKey.merge(
[chooser.get_write_key(),
plenaries.get_write_key()])
try:
lock_queue.acquire(key)
chooser.write_plenary_templates(locked=True)
plenaries.write(locked=True)
except:
chooser.restore_stash()
plenaries.restore_stash()
raise
finally:
lock_queue.release(key)
return
def reconfigure_list(self, session, logger, dbhosts, archetype,
personality, buildstatus, osname, osversion,
**arguments):
failed = []
# Check all the parameters up front.
# Some of these could be more intelligent about defaults
# (either by checking for unique entries or relying on the list)
# - starting simple.
if archetype:
dbarchetype = Archetype.get_unique(session, archetype, compel=True)
if dbarchetype.cluster_type is not None:
raise ArgumentError("Archetype %s is a cluster archetype" %
dbarchetype.name)
# TODO: Once OS is a first class object this block needs
# to check that either OS is also being reset or that the
# OS is valid for the new archetype.
else:
dbarchetype = None
if personality:
dbpersonality = Personality.get_unique(session, name=personality,
archetype=dbarchetype,
compel=True)
if osname and not osversion:
raise ArgumentError("Please specify --osversion for OS %s." %
osname)
if osversion:
if not osname:
raise ArgumentError("Please specify --osname to use with "
"OS version %s." % osversion)
# Linux model names are the same under aurora and aquilon, so
# allowing to omit --archetype would not be useful
if not archetype:
raise ArgumentError("Please specify --archetype for OS "
"%s, version %s." % (osname, osversion))
dbos = OperatingSystem.get_unique(session, name=osname,
version=osversion,
archetype=dbarchetype,
compel=True)
else:
dbos = None
if buildstatus:
dbstatus = HostLifecycle.get_unique(session, buildstatus,
compel=True)
# Take a shortcut if there's nothing to do, but only after all the other
# parameters have been checked
if not dbhosts:
return
personalities = {}
branches = {}
authors = {}
# Do any final cross-list or dependency checks before entering
# the Chooser loop.
for dbhost in dbhosts:
if dbhost.branch in branches:
branches[dbhost.branch].append(dbhost)
else:
branches[dbhost.branch] = [dbhost]
if dbhost.sandbox_author in authors:
authors[dbhost.sandbox_author].append(dbhost)
else:
authors[dbhost.sandbox_author] = [dbhost]
if dbos and not dbarchetype and dbhost.archetype != dbos.archetype:
failed.append("{0}: Cannot change operating system because it "
"needs {1:l} instead of "
"{2:l}.".format(dbhost.fqdn, dbhost.archetype,
dbos.archetype))
if dbarchetype and not dbos and \
dbhost.operating_system.archetype != dbarchetype:
failed.append("{0}: Cannot change archetype because {1:l} needs "
"{2:l}.".format(dbhost.fqdn, dbhost.operating_system,
dbhost.operating_system.archetype))
if (personality and dbhost.cluster and
len(dbhost.cluster.allowed_personalities) > 0 and
dbpersonality not in dbhost.cluster.allowed_personalities):
allowed = ["%s/%s" % (p.archetype.name, p.name) for p in
dbhost.cluster.allowed_personalities]
failed.append("{0}: The {1:l} is not allowed by {2}. "
"Specify one of {3}.".format(
dbhost.fqdn, dbpersonality,
dbhost.cluster, allowed))
if personality:
personalities[dbhost.fqdn] = dbpersonality
elif archetype:
personalities[dbhost.fqdn] = Personality.get_unique(session,
name=dbhost.personality.name, archetype=dbarchetype)
if not personalities[dbhost.fqdn]:
failed.append("%s: No personality %s found for archetype "
"%s." %
(dbhost.fqdn, dbhost.personality.name,
dbarchetype.name))
if failed:
raise ArgumentError("Cannot modify the following hosts:\n%s" %
"\n".join(failed))
if len(branches) > 1:
keys = branches.keys()
branch_sort = lambda x, y: cmp(len(branches[x]), len(branches[y]))
keys.sort(cmp=branch_sort)
stats = ["{0:d} hosts in {1:l}".format(len(branches[branch]), branch)
for branch in keys]
raise ArgumentError("All hosts must be in the same domain or "
"sandbox:\n%s" % "\n".join(stats))
dbbranch = branches.keys()[0]
if len(authors) > 1:
keys = authors.keys()
author_sort = lambda x, y: cmp(len(authors[x]), len(authors[y]))
keys.sort(cmp=author_sort)
stats = ["%s hosts with sandbox author %s" %
(len(authors[author]), author.name) for author in keys]
raise ArgumentError("All hosts must be managed by the same "
"sandbox author:\n%s" % "\n".join(stats))
dbauthor = authors.keys()[0]
failed = []
choosers = []
for dbhost in dbhosts:
if dbhost.fqdn in personalities:
dbhost.personality = personalities[dbhost.fqdn]
session.add(dbhost)
if osversion:
dbhost.operating_system = dbos
session.add(dbhost)
if buildstatus:
dbhost.status.transition(dbhost, dbstatus)
session.add(dbhost)
session.flush()
logger.client_info("Verifying service bindings.")
for dbhost in dbhosts:
if dbhost.archetype.is_compileable:
if arguments.get("keepbindings", None):
chooser = Chooser(dbhost, logger=logger,
required_only=False)
else:
chooser = Chooser(dbhost, logger=logger,
required_only=True)
choosers.append(chooser)
try:
chooser.set_required()
except ArgumentError, e:
failed.append(str(e))