def command_template_init(*args):
'''
admin template init prefix template_name package
Instantiate this template into a set of services with a common
prefix. For example, if the template has services 'space' and
'oh', a prefix of 'myworld' will result in two services,
'myworld-space' and 'myworld-oh'.
'''
if len(args) < 3:
print "Must specify at least template name and service prefix"
return 1
prefix = args[0]
template = args[1]
package = args[2]
if not validate_template_config(template):
return 1
# First sanity check that we don't have any services in the way
top_servpath = service.service_path(prefix)
if os.path.exists(top_servpath):
print "Top-level service directory", top_servpath, "already exists."
return 1
svcs = templateconfig.services
for s in svcs:
servpath = service.service_path(prefix, s.name)
if os.path.exists(servpath):
print "Service directory", os.path.join(prefix, s.name), "already exists."
return 1
return command_template_reinit(*args, notre=True)
def command_template_reinit(*args, **kwargs):
'''
admin template reinit prefix template_name package
Reinstantiate a template over an existing instantiation. It
performs the same steps as template init but leaves existing data
in place.
'''
if len(args) < 3:
print "Must specify at least template name and service prefix"
return 1
prefix = args[0]
template = args[1]
package = args[2]
if not validate_template_config(template):
return 1
# Then instantiate each of them
svcs = templateconfig.services
for s in svcs:
servname = os.path.join(prefix, s.name)
if 'notre' in kwargs and kwargs['notre']:
service.command_service_init(*[servname, package, os.path.join(template, s.source)])
else:
service.command_service_reinit(*[servname, package, os.path.join(template, s.source)])
# Copy the template configuration in so we can make sure we keep the same setup
shutil.copy(template_path(template, 'template.py'), service.service_path(prefix))
def command_template_destroy(*args):
'''
admin template start template_name prefix
Destroy this template instantiated with the given prefix
'''
if len(args) < 1:
print "Must specify at least template instance prefix"
return 1
prefix = args[0]
if not validate_instance_config(prefix):
return 1
# Then instantiate each of them
svcs = templateconfig.services
for s in svcs:
servname = os.path.join(prefix, s.name)
service.command_service_destroy(*[servname])
# Make sure we get rid of the parent directory since each
# individual service only deletes its own directory
shutil.rmtree( service.service_path(prefix) )
def template_load_instance_config(prefix):
"""
Load the configuration for an instance with the given prefix
"""
return templateconfig.load_config(service.service_path(prefix, 'template.py'))
