1 # ============LICENSE_START=======================================================
3 # ================================================================================
4 # Copyright (c) 2017 AT&T Intellectual Property. All rights reserved.
5 # ================================================================================
6 # Licensed under the Apache License, Version 2.0 (the "License");
7 # you may not use this file except in compliance with the License.
8 # You may obtain a copy of the License at
10 # http://www.apache.org/licenses/LICENSE-2.0
12 # Unless required by applicable law or agreed to in writing, software
13 # distributed under the License is distributed on an "AS IS" BASIS,
14 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15 # See the License for the specific language governing permissions and
16 # limitations under the License.
17 # ============LICENSE_END=========================================================
19 # ECOMP is a trademark and service mark of AT&T Intellectual Property.
21 # -*- coding: utf-8 -*-
23 Provides utilities for running components
27 from functools import partial
29 from dcae_cli.util import docker_util as du
30 from dcae_cli.util import dmaap
31 from dcae_cli.util.cdap_util import run_component as run_cdap_component
32 from dcae_cli.util.exc import DcaeException
33 from dcae_cli.util import discovery as dis
34 from dcae_cli.util.discovery import get_user_instances, config_context, \
36 import dcae_cli.util.profiles as profiles
37 from dcae_cli.util.logger import get_logger
38 from dcae_cli.catalog.mock.catalog import build_config_keys_map, \
39 get_data_router_subscriber_route
40 # This seems to be an abstraction leak
41 from dcae_cli.catalog.mock.schema import apply_defaults_docker_config
44 log = get_logger('Run')
47 def _get_instances(user, additional_user=None):
48 instance_map = get_user_instances(user)
51 # Merge current user with another user's instance map to be available to
53 instance_map_additional = get_user_instances(additional_user)
54 log.info("#Components for {0}: {1}".format(additional_user,
55 len(instance_map_additional)))
56 instance_map.update(instance_map_additional)
58 # REVIEW: Getting instances always returns back component names with dots
59 # even though the component name could originally have dots or dashes.
60 # To put this dot vs dash headache to rest, we have to understand what the
61 # discovery abstraction should be. Should the discovery be aware of this type
62 # of naming magic? If so then the discovery abstraction may need to be
63 # enhanced to be catalog aware to do name verfication queries. If not then
64 # the dot-to-dash transformation might not belong inside of the discovery
65 # abstraction and the higher level should do that.
67 # Another possible fix is to map the dots to something that's less likely to
68 # be used multiple dashes. This would help disambiguate between a forced
69 # mapping vs component name with dashes.
71 # In the meantime, here is a fix to address the issue where a downstream component
72 # can't be matched when the downstream component uses dashes. This affects
73 # the subsequent calls:
75 # - catalog.get_discovery* query
78 # The instance map will contain entries where the names will be with dots and
79 # with dashes. There should be no harm because only one set should match. The
80 # assumption is that people won't have the same name as dots and as dashes.
81 instance_map_dashes = { (replace_dots(k[0]), k[1]): v
82 for k, v in six.iteritems(instance_map) }
83 instance_map.update(instance_map_dashes)
88 def _update_delivery_urls(spec, target_host, dmaap_map):
89 """Updates the delivery urls for data router subscribers"""
90 # Try to stick in the more appropriate delivery url which is not realized
91 # until after deployment because you need the ip, port.
92 # Realized that this is not actually needed by the component but kept it because
93 # it might be useful for component developers to **see** this info.
94 get_route_func = partial(get_data_router_subscriber_route, spec)
95 target_base_url = "http://{0}".format(target_host)
96 return dmaap.update_delivery_urls(get_route_func, target_base_url,
100 def _verify_component(name, max_wait, consul_host):
101 """Verify that the component is healthy
105 max_wait (integer): limit to how may attempts to make which translates to
106 seconds because each sleep is one second. 0 means infinite.
110 True if component is healthy else returns False
115 if dis.is_healthy(consul_host, name):
120 if max_wait > 0 and max_wait < num_attempts:
126 def run_component(user, cname, cver, catalog, additional_user, attached, force,
127 dmaap_map, external_ip=None):
128 '''Runs a component based on the component type
133 Continue to run even when there are no valid downstream components when
134 this flag is set to True.
135 dmaap_map: (dict) config_key to message router or data router connections.
136 Used as a manual way to make available this information for the component.
138 cname, cver = catalog.verify_component(cname, cver)
139 ctype = catalog.get_component_type(cname, cver)
140 profile = profiles.get_profile()
142 instance_map = _get_instances(user, additional_user)
143 neighbors = six.iterkeys(instance_map)
146 dmaap_config_keys = catalog.get_discovery_for_dmaap(cname, cver)
148 if not dmaap.validate_dmaap_map_entries(dmaap_map, *dmaap_config_keys):
151 if ctype == 'docker':
152 params, interface_map = catalog.get_discovery_for_docker(cname, cver, neighbors)
153 should_wait = attached
155 spec = catalog.get_component_spec(cname, cver)
156 config_key_map = build_config_keys_map(spec)
158 dmaap_map = _update_delivery_urls(spec, profile.docker_host.split(":")[0],
161 with config_context(user, cname, cver, params, interface_map,
162 instance_map, config_key_map, dmaap_map=dmaap_map,
163 always_cleanup=should_wait, force_config=force) as (instance_name, _):
164 image = catalog.get_docker_image(cname, cver)
165 docker_config = catalog.get_docker_config(cname, cver)
168 du.deploy_component(profile, image, instance_name, docker_config,
171 result = du.deploy_component(profile, image, instance_name, docker_config)
175 log.info("Deployed {0}. Verifying..".format(instance_name))
179 if _verify_component(instance_name, max_wait, dis.consul_host):
180 log.info("Container is up and healthy")
182 # This block of code is used to construct the delivery
183 # urls for data router subscribers and to display it for
184 # users to help with manually provisioning feeds.
185 results = dis.lookup_instance(dis.consul_host, instance_name)
186 target_host = dis.parse_instance_lookup(results)
188 dmaap_map = _update_delivery_urls(spec, target_host, dmaap_map)
189 delivery_urls = dmaap.list_delivery_urls(dmaap_map)
192 msg = "\n".join(["\t{k}: {url}".format(k=k, url=url)
193 for k, url in delivery_urls])
194 msg = "\n\n{0}\n".format(msg)
195 log.warn("Your component is a data router subscriber. Here are the delivery urls: {0}".format(msg))
197 log.warn("Container never became healthy")
199 raise DcaeException("Failed to deploy docker component")
202 (jar, config, spec) = catalog.get_cdap(cname, cver)
203 config_key_map = build_config_keys_map(spec)
204 params, interface_map = catalog.get_discovery_for_cdap(cname, cver, neighbors)
206 with config_context(user, cname, cver, params, interface_map, instance_map,
207 config_key_map, dmaap_map=dmaap_map, always_cleanup=False,
208 force_config=force) as (instance_name, templated_conf):
209 run_cdap_component(catalog, params, instance_name, profile, jar, config, spec, templated_conf)
211 raise DcaeException("Unsupported component type for run")
214 def dev_component(user, catalog, specification, additional_user, force, dmaap_map):
215 '''Sets up the discovery layer for in development component
217 The passed-in component specification is
219 * Generates the corresponding application config
220 * Pushes the application config and rels key into Consul
222 This allows developers to play with their spec and the resulting configuration
223 outside of being in the catalog and in a container.
227 user: (string) user name
228 catalog: (object) instance of MockCatalog
229 specification: (dict) experimental component specification
230 additional_user: (string) another user name used to source additional
233 Continue to run even when there are no valid downstream components when
234 this flag is set to True.
235 dmaap_map: (dict) config_key to message router connections. Used as a
236 manual way to make available this information for the component.
238 instance_map = _get_instances(user, additional_user)
239 neighbors = six.iterkeys(instance_map)
241 params, interface_map, dmaap_config_keys = catalog.get_discovery_from_spec(
242 user, specification, neighbors)
244 if not dmaap.validate_dmaap_map_entries(dmaap_map, *dmaap_config_keys):
247 cname = specification["self"]["name"]
248 cver = specification["self"]["version"]
249 config_key_map = build_config_keys_map(specification)
251 dmaap_map = _update_delivery_urls(specification, "localhost", dmaap_map)
253 with config_context(user, cname, cver, params, interface_map, instance_map,
254 config_key_map, dmaap_map, always_cleanup=True, force_config=force) \
255 as (instance_name, templated_conf):
257 click.echo("Ready for component development")
259 if specification["self"]["component_type"] == "docker":
260 # The env building is only for docker right now
261 docker_config = apply_defaults_docker_config(specification["auxilary"])
262 envs = du.build_envs(profiles.get_profile(), docker_config, instance_name)
263 envs_message = "\n".join(["export {0}={1}".format(k, v) for k,v in envs.items()])
264 envs_filename = "env_{0}".format(profiles.get_active_name())
266 with open(envs_filename, "w") as f:
267 f.write(envs_message)
270 click.echo("Setup these environment varibles. Run \"source {0}\":".format(envs_filename))
272 click.echo(envs_message)
275 click.echo("Set the following as your HOSTNAME:\n {0}".format(instance_name))
277 input("Press any key to stop and to clean up")