def delete(self, clusternames=None, force=False, all=False):
"""Delete clusters that have these names.
If not specified, delete the active cluster.
If there is no active cluster, delete the first cluster.
:param list clusternames: list of cluster names to delete
"""
if all:
clusters = db.select(Cluster)
else:
clusternames = clusternames or [Default.cluster]
clusters = [db.select(Cluster, name=name).one()
for name in clusternames]
for cluster in clusters:
Console.ok('Deleting cluster {}'.format(cluster.name))
cluster.delete(force=force)
Console.ok('Deleted cluster {}: {} nodes'
.format(cluster.name, cluster.count))
remaining_clusters = db.select(Cluster).all()
if remaining_clusters:
name = remaining_clusters[-1].name
else:
name = None
Default.set_cluster(name)
Console.ok('Active cluster: {}'.format(name))
def delete(self, clusternames=None, force=False, all=False):
"""Delete clusters that have these names.
If not specified, delete the active cluster.
If there is no active cluster, delete the first cluster.
:param list clusternames: list of cluster names to delete
"""
if all:
clusters = db.select(Cluster)
else:
clusternames = clusternames or [Default.cluster]
clusters = [
db.select(Cluster, name=name).one() for name in clusternames
]
for cluster in clusters:
Console.ok('Deleting cluster {}'.format(cluster.name))
cluster.delete(force=force)
Console.ok('Deleted cluster {}: {} nodes'.format(
cluster.name, cluster.count))
remaining_clusters = db.select(Cluster).all()
if remaining_clusters:
name = remaining_clusters[-1].name
else:
name = None
Default.set_cluster(name)
Console.ok('Active cluster: {}'.format(name))
def allocate(self, clustername=None):
specname = clustername or Default.active_specification
try:
spec = db.select(SPECIFICATION, name=specname)[0]
except IndexError:
Console.error(
'No specification with name={} found'.format(specname))
return 1
defns = spec.get()
try:
cluster = db.select(Cluster, name=spec.name, specId=spec.cm_id)[0]
except IndexError:
cluster = Cluster(name=spec.name, specId=spec.cm_id, **defns)
Default.set_cluster(cluster.name)
Console.ok('Cluster {} is now active'.format(cluster.name))
cluster.create()
Console.ok('Cluster {} created'.format(cluster.name))
return cluster
def use(self, specname):
"""Activate the given specification
:param specname: namne of the specification
"""
spec = db.select(SPECIFICATION, type='cluster', name=specname)[0]
Default.set_specification(spec.name)
Default.set_cluster(spec.name)
def use(self, specname):
"""Activate the given specification
:param specname: namne of the specification
"""
spec = db.select(SPECIFICATION, type='cluster', name=specname)[0]
Default.set_specification(spec.name)
Default.set_cluster(spec.name)
def allocate(self, clustername=None):
specname = clustername or Default.active_specification
try:
spec = db.select(SPECIFICATION, name=specname)[0]
except IndexError:
Console.error('No specification with name={} found'.format(specname))
return 1
defns = spec.get()
try:
cluster = db.select(Cluster, name=spec.name, specId=spec.cm_id)[0]
except IndexError:
cluster = Cluster(name=spec.name, specId=spec.cm_id, **defns)
Default.set_cluster(cluster.name)
Console.ok('Cluster {} is now active'.format(cluster.name))
cluster.create()
Console.ok('Cluster {} created'.format(cluster.name))
return cluster
def create(self,
clustername=None,
cloud=None,
count=1,
username=None,
image=None,
flavor=None,
key=None,
secgroup=None,
assignFloatingIP=True,
activate=True):
"""Create a cluster.
If values are `None`, they are automatically determined via
defaults.
:param str clustername: name of this cluster (generated if None)
:param str cloud: cloud name
:param int count: number of instances in the cluster
:param str user: cloudmesh user
:param str username: cloud image username
:param str image: image name
:param str flavor: instance flavor
:param str key: key name
:param str secgroup: security group name
:param bool activate: activate this cluster after creation
:returns: a cluster
:rtype: :class:`Cluster`
"""
clustername = clustername or Default.generate_name(
Names.CLUSTER_COUNTER)
cloud = cloud or Default.cloud
username = username or Image.guess_username(image)
image = image or Default.image
flavor = flavor or Default.flavor
key = key or Default.key
secgroup = secgroup or Default.secgroup
try:
cluster = Cluster(
name=clustername,
count=count,
cloud=cloud,
username=username,
image=image,
flavor=flavor,
key=key,
secgroup=secgroup,
assignFloatingIP=assignFloatingIP,
)
except ClusterNameClashException as e:
Console.error(str(e))
raise UnrecoverableErrorException(str(e))
cluster.create()
Console.ok('Cluster {} created'.format(clustername))
if activate:
Default.set_cluster(clustername)
Console.ok('Cluster {} is now active'.format(clustername))
return cluster
