def __globusonline_remove(self, inst, eps):
go_helper = GlobusOnlineHelper.from_instance(inst)
try:
for ep in eps:
go_helper.connect(ep.user)
try:
go_helper.endpoint_remove(ep)
except:
pass
go_helper.disconnect()
except GlobusOnlineException, goe:
log.warning("Unable to remove GO endpoint/s: %s" % goe)
def instance_stop(self, inst_id):
(success, message, inst) = self.__get_instance(inst_id)
if not success:
return (API.STATUS_FAIL, message)
log.set_logging_instance(inst)
try:
if inst.topology.state != Topology.STATE_RUNNING:
message = "Cannot start an instance that is in state '%s'" % (Topology.state_str[inst.topology.state])
return (API.STATUS_FAIL, message)
deployer_class = self.__get_deployer_class(inst)
deployer = deployer_class()
try:
deployer.set_instance(inst)
except DeploymentException, de:
message = "Deployer failed to initialize. %s " % de
return (API.STATUS_FAIL, message)
inst.topology.state = Topology.STATE_STOPPING
inst.topology.save()
nodes = inst.topology.get_nodes()
(success, message) = self.__stop_vms(deployer, nodes)
if not success:
inst.topology.state = Topology.STATE_FAILED
inst.topology.save()
return (API.STATUS_FAIL, message)
inst.topology.state = Topology.STATE_STOPPED
inst.topology.save()
log.info("Stopping Globus Online endpoints")
try:
eps = inst.topology.get_go_endpoints()
self.__globusonline_stop(inst, eps)
inst.topology.save()
except GlobusOnlineException, goe:
log.warning("Unable to stop GO endpoint/s: %s" % goe)
def instance_start(self, inst_id, extra_files, run_cmds):
(success, message, inst) = self.__get_instance(inst_id)
if not success:
return (API.STATUS_FAIL, message)
log.set_logging_instance(inst)
try:
deployer_class = self.__get_deployer_class(inst)
deployer = deployer_class(extra_files, run_cmds)
try:
deployer.set_instance(inst)
except DeploymentException, de:
message = "Deployer failed to initialize. %s " % de
return (API.STATUS_FAIL, message)
if inst.topology.state == Topology.STATE_NEW:
resuming = False
elif inst.topology.state == Topology.STATE_STOPPED:
resuming = True
else:
message = "Cannot start an instance that is in state '%s'" % (Topology.state_str[inst.topology.state])
return (API.STATUS_FAIL, message)
if not resuming:
inst.topology.state = Topology.STATE_STARTING
else:
inst.topology.state = Topology.STATE_RESUMING
inst.topology.save()
if not resuming:
try:
eps = inst.topology.get_go_endpoints()
self.__globusonline_pre_start(inst, eps)
except GlobusOnlineException, goe:
log.warning("Unable to create GO endpoint/s: %s" % goe)
def configure(self, ssh):
domain = self.domain
node = self.node
instance_dir = self.deployer.instance.instance_dir
if self.basic:
# Make backup copies of hostname and /etc/hosts
if node.state in (Node.STATE_CONFIGURING, Node.STATE_RESUMED_RECONFIGURING):
ssh.run("sudo cp /etc/hosts /etc/hosts.gp-bak", expectnooutput=True)
ssh.run("sudo cp /etc/hostname /etc/hostname.gp-bak", expectnooutput=True)
# Upload host file and update hostname
log.debug("Uploading host file and updating hostname", node)
ssh.scp("%s/hosts" % instance_dir,
"/chef/cookbooks/provision/files/default/hosts")
ssh.run("sudo cp /chef/cookbooks/provision/files/default/hosts /etc/hosts", expectnooutput=True)
ssh.run("sudo bash -c \"echo %s > /etc/hostname\"" % node.hostname, expectnooutput=True)
ssh.run("sudo /etc/init.d/hostname.sh || sudo /etc/init.d/hostname restart", expectnooutput=True)
self.check_continue()
if self.chef:
# Upload topology file
log.debug("Uploading topology file", node)
ssh.scp("%s/topology.rb" % instance_dir,
"/chef/cookbooks/provision/attributes/topology.rb")
# Copy certificates
log.debug("Copying certificates", node)
ssh.scp_dir("%s/certs" % instance_dir,
"/chef/cookbooks/provision/files/default/")
# Upload extra files
log.debug("Copying extra files", node)
for src, dst in self.deployer.extra_files:
ssh.scp(src, dst)
self.check_continue()
# Run chef
log.debug("Running chef", node)
ssh.run("echo -e \"cookbook_path \\\"/chef/cookbooks\\\"\\nrole_path \\\"/chef/roles\\\"\" > /tmp/chef.conf", expectnooutput=True)
ssh.run("echo '{ \"run_list\": [ %s ], \"scratch_dir\": \"%s\", \"domain_id\": \"%s\", \"node_id\": \"%s\" }' > /tmp/chef.json" % (",".join("\"%s\"" % r for r in node.run_list), self.config.get("scratch-dir"), domain.id, node.id), expectnooutput=True)
# Sometimes, Chef will fail because a service didn't start or restart
# properly (NFS-related services seem to do this occasionally).
# In most cases, the problem just "goes away" if you try to restart the
# service again. So, if Chef fails, we don't give up and try again
# (since the recipes are idempotent, there's no harm to running them
# multiple times)
chef_tries = 3
while chef_tries > 0:
rc = ssh.run("sudo -i chef-solo -c /tmp/chef.conf -j /tmp/chef.json", exception_on_error = False)
if rc != 0:
chef_tries -= 1
log.debug("chef-solo failed. %i attempts left" % chef_tries, node)
else:
break
if chef_tries == 0:
raise DeploymentException, "Failed to configure node %s" % node.id
self.check_continue()
for cmd in self.deployer.run_cmds:
rc = ssh.run(cmd, exception_on_error = False)
if rc != 0:
log.warning("Extra command failed with status %i: %s" % (rc, cmd), node)
log.info("Configuration done.", node)
def instance_update(self, inst_id, topology_json, extra_files, run_cmds):
try:
(success, message, inst) = self.__get_instance(inst_id)
if not success:
return (API.STATUS_FAIL, message)
log.set_logging_instance(inst)
if inst.topology.state == Topology.STATE_NEW:
# If the topology is still in a New state, we simply
# validate that the update is valid, and replace
# the old topology. We don't need to deploy or
# configure any hosts..
if topology_json != None:
(success, message, topology_changes) = inst.update_topology(topology_json)
if not success:
message = "Error in topology file: %s" % message
return (API.STATUS_FAIL, message)
return (API.STATUS_SUCCESS, "Success")
elif inst.topology.state not in (Topology.STATE_RUNNING, Topology.STATE_FAILED):
message = "Cannot update the topology of an instance that is in state '%s'" % (Topology.state_str[inst.topology.state])
return (API.STATUS_FAIL, message)
deployer_class = self.__get_deployer_class(inst)
deployer = deployer_class(extra_files, run_cmds)
try:
deployer.set_instance(inst)
except DeploymentException, de:
message = "Deployer failed to initialize. %s " % de
return (API.STATUS_FAIL, message)
if topology_json != None:
old_topology = inst.topology
try:
(success, message, topology_changes) = inst.update_topology(topology_json)
if not success:
return (API.STATUS_FAIL, message)
except ObjectValidationException, ove:
message = "Error in topology file: %s" % ove
return (API.STATUS_FAIL, message)
create_hosts = []
destroy_hosts = []
create_endpoints = []
remove_endpoints = []
if topology_changes.changes.has_key("domains"):
for domain in topology_changes.changes["domains"].add:
d = inst.topology.domains[domain]
create_hosts += [n.id for n in d.nodes.values()]
for domain in topology_changes.changes["domains"].remove:
d = inst.topology.domains[domain].keys()
destroy_hosts += [n.id for n in d.nodes.values()]
for domain in topology_changes.changes["domains"].edit:
if topology_changes.changes["domains"].edit[domain].changes.has_key("nodes"):
nodes_changes = topology_changes.changes["domains"].edit[domain].changes["nodes"]
create_hosts += nodes_changes.add
destroy_hosts += nodes_changes.remove
if topology_changes.changes["domains"].edit[domain].changes.has_key("go_endpoints"):
ep_changes = topology_changes.changes["domains"].edit[domain].changes["go_endpoints"]
if ep_changes.change_type == PropertyChange.ADD:
create_endpoints += inst.topology.domains[domain].go_endpoints
elif ep_changes.change_type == PropertyChange.REMOVE:
remove_endpoints += old_topology.domains[domain].go_endpoints
elif ep_changes.change_type == PropertyChange.EDIT:
create_endpoints += ep_changes.add
remove_endpoints += ep_changes.remove
nodes = inst.topology.get_nodes()
if len(destroy_hosts) > 0:
old_nodes = old_topology.get_nodes()
log.info("Terminating hosts %s" % destroy_hosts)
old_nodes = [n for n in old_nodes if n.id in destroy_hosts]
(success, message) = self.__terminate_vms(deployer, old_nodes)
if not success:
inst.topology.state = Topology.STATE_FAILED
inst.topology.save()
return (API.STATUS_FAIL, message)
inst.topology.save()
if len(create_endpoints) > 0:
try:
self.__globusonline_pre_start(inst, create_endpoints)
except GlobusOnlineException, goe:
log.warning("Unable to create GO endpoint/s: %s" % goe)
(success, message) = self.__configure_vms(deployer, node_vm)
if not success:
inst.topology.state = Topology.STATE_FAILED
inst.topology.save()
return (API.STATUS_FAIL, message)
inst.topology.state = Topology.STATE_RUNNING
inst.topology.save()
log.info("Creating Globus Online endpoints")
eps = inst.topology.get_go_endpoints()
if not resuming:
try:
self.__globusonline_post_start(inst, eps)
except GlobusOnlineException, goe:
log.warning("Unable to create GO endpoint/s: %s" % goe)
else:
try:
self.__globusonline_resume(inst, eps)
except GlobusOnlineException, goe:
log.warning("Unable to resume GO endpoint/s: %s" % goe)
inst.topology.save()
return (API.STATUS_SUCCESS, "Success")
except:
message = self.__unexpected_exception_to_text(what = "starting the instance.")
try:
if inst != None:
inst.topology.state = Topology.STATE_FAILED
inst.topology.save()
