def get_applications():
"""get_applications()
Return a list containing all applications.
"""
applications = []
for app in cache.get_applications():
app = cache.get_application(app['id'])
applications.append(application.appdef_from_app(app))
return applications
def reuse_existing_application(appdef):
"""Try to re-use an existing application."""
candidates = []
pubkey = env.public_key
if appdef.get('blueprint'):
blueprint = cache.get_blueprint(name=appdef['blueprint'])
else:
blueprint = None
project = env.manifest['project']
for app in cache.get_applications():
parts = app['name'].split(':')
if len(parts) != 3:
continue
if parts[0] != project['name'] or parts[1] != appdef['name']:
continue
app = cache.get_application(app['id'])
vms = app.get('vms', [])
if not vms:
continue
state = get_application_state(app)
if state not in vm_reuse_states:
continue
if blueprint and blueprint['name'] != app.get('blueprintName'):
continue
vmsfound = []
for vmdef in appdef['vms']:
for vm in vms:
if vm['name'] == vmdef['name']:
break
if not blueprint:
image = cache.get_image(name=vmdef['image'])
if not image:
continue
if vm['shelfVmId'] != image['id']:
continue
userdata = vm.get('customVmConfigurationData', {})
keypair = userdata.get('keypair')
if keypair.get('id') != pubkey['id']:
continue
vmsfound.append(vmdef['name'])
if len(vmsfound) != len(appdef['vms']):
continue
candidates.append((state, app))
if not candidates:
return
candidates.sort(key=lambda x: vm_reuse_states.index(x[0]))
return candidates[0][1]
def create_new_application(appdef, name_is_template=True):
"""Create a new application based on ``appdef``."""
if name_is_template:
project = env.manifest['project']
template = '{0}:{1}'.format(project['name'], appdef['name'])
name = util.get_unused_name(template, cache.get_applications())
else:
name = appdef['name']
app = { 'name': name }
bpname = appdef.get('blueprint')
if bpname:
blueprint = cache.get_blueprint(name=bpname)
app['blueprintId'] = blueprint['id']
else:
vms = []
for vmdef in appdef.get('vms', []):
vm = create_new_vm(vmdef)
vms.append(vm)
app['vms'] = vms
app = env.api.create_application(app)
app = cache.get_application(app['id']) # update cache
return app
def new_application_name(template):
"""Return a new application name based on *template*."""
name = util.get_unused_name(template, cache.get_applications())
return name