diff options
Diffstat (limited to 'ms/command-executor/src/main')
3 files changed, 163 insertions, 2 deletions
diff --git a/ms/command-executor/src/main/python/command_executor_handler.py b/ms/command-executor/src/main/python/command_executor_handler.py new file mode 100644 index 000000000..3027859b3 --- /dev/null +++ b/ms/command-executor/src/main/python/command_executor_handler.py @@ -0,0 +1,100 @@ +# +# Copyright (C) 2019 Bell Canada. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +# + +import os +import subprocess +import virtualenv +import venv +from builtins import Exception, open, dict +from subprocess import CalledProcessError, PIPE + +import utils + + +class CommandExecutorHandler: + + def __init__(self, request): + self.blueprint_id = utils.get_blueprint_id(request) + self.venv_home = '/opt/app/onap/blueprints/deploy/' + self.blueprint_id + + def prepare_env(self, request, results): + self.create_venv() + if not self.activate_venv(): + return False + + for package in request.packages: + if not self.install(package, results): + return False + + # deactivate_venv(blueprint_id) + return True + + def execute_command(self, request, results): + if not self.activate_venv(): + return False + + try: + results.append(os.popen(request.command).read()) + except Exception as e: + print("{} - Failed to execute command. Error: {}".format(self.blueprint_id, e)) + results.append(e) + return False + + # deactivate_venv(blueprint_id) + return True + + def install(self, package, results): + print("{} - Install package({}) in Python Virtual Environment".format(self.blueprint_id, package)) + command = ["pip", "install", package] + + env = dict(os.environ) + # env['https_proxy'] = "https://fastweb.int.bell.ca:8083" + + try: + results.append(subprocess.run(command, check=True, stdout=PIPE, stderr=PIPE, env=env).stdout.decode()) + return True + except CalledProcessError as e: + results.append(e.stderr.decode()) + return False + + def create_venv(self): + print("{} - Create Python Virtual Environment".format(self.blueprint_id)) + try: + bin_dir = self.venv_home + "/bin" + # venv doesn't populate the activate_this.py script, hence we use from virtualenv + venv.create(self.venv_home, with_pip=True, system_site_packages=True) + virtualenv.writefile(os.path.join(bin_dir, "activate_this.py"), virtualenv.ACTIVATE_THIS) + except Exception as err: + print("{} - Failed to provision Python Virtual Environment. Error: {}".format(self.blueprint_id, err)) + + def activate_venv(self): + print("{} - Activate Python Virtual Environment".format(self.blueprint_id)) + + path = "%s/bin/activate_this.py" % self.venv_home + try: + exec (open(path).read(), {'__file__': path}) + return True + except Exception as err: + print("{} - Failed to activate Python Virtual Environment. Error: {}".format(self.blueprint_id, err)) + return False + + def deactivate_venv(self): + print("{} - Deactivate Python Virtual Environment".format(self.blueprint_id)) + command = ["deactivate"] + try: + subprocess.run(command, check=True) + except Exception as err: + print("{} - Failed to deactivate Python Virtual Environment. Error: {}".format(self.blueprint_id, err)) diff --git a/ms/command-executor/src/main/python/command_executor_server.py b/ms/command-executor/src/main/python/command_executor_server.py index 35eed8e57..b62f15011 100644 --- a/ms/command-executor/src/main/python/command_executor_server.py +++ b/ms/command-executor/src/main/python/command_executor_server.py @@ -25,6 +25,8 @@ import grpc import proto.CommandExecutor_pb2_grpc as CommandExecutor_pb2_grpc from request_header_validator_interceptor import RequestHeaderValidatorInterceptor +from command_executor_handler import CommandExecutorHandler +import utils _ONE_DAY_IN_SECONDS = 60 * 60 * 24 @@ -32,10 +34,30 @@ _ONE_DAY_IN_SECONDS = 60 * 60 * 24 class CommandExecutorServer(CommandExecutor_pb2_grpc.CommandExecutorServiceServicer): def prepareEnv(self, request, context): - return + blueprint_id = utils.get_blueprint_id(request) + print("{} - Received prepareEnv request".format(blueprint_id)) + print (request) + + results = [] + handler = CommandExecutorHandler(request) + if not handler.prepare_env(request, results): + print("{} - Failed to prepare python environment. {}".format(blueprint_id, results)) + return utils.build_response(request, results, False) + print("{} - Package installation logs {}".format(blueprint_id, results)) + return utils.build_response(request, results) def executeCommand(self, request, context): - return + blueprint_id = utils.get_blueprint_id(request) + print("{} - Received executeCommand request".format(blueprint_id)) + print(request) + + results = [] + handler = CommandExecutorHandler(request) + if not handler.execute_command(request, results): + print("{} - Failed to executeCommand. {}".format(blueprint_id, results)) + return utils.build_response(request, results, False) + print("{} - Execute command logs: {}".format(blueprint_id, results)) + return utils.build_response(request, results) def serve(): diff --git a/ms/command-executor/src/main/python/utils.py b/ms/command-executor/src/main/python/utils.py new file mode 100644 index 000000000..b0013b996 --- /dev/null +++ b/ms/command-executor/src/main/python/utils.py @@ -0,0 +1,39 @@ +# +# Copyright (C) 2019 Bell Canada. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +# +from builtins import map, bytes + +from google.protobuf.timestamp_pb2 import Timestamp + +import proto.CommandExecutor_pb2 as CommandExecutor_pb2 + + +def get_blueprint_id(request): + blueprint_name = request.identifiers.blueprintName + blueprint_version = request.identifiers.blueprintVersion + return blueprint_name + '/' + blueprint_version + + +def build_response(request, results, is_success=True): + if is_success: + status = CommandExecutor_pb2.SUCCESS + else: + status = CommandExecutor_pb2.FAILURE + + timestamp = Timestamp() + timestamp.GetCurrentTime() + + return CommandExecutor_pb2.ExecutionOutput(requestId=request.requestId, response="".join(results), status=status, + timestamp=timestamp) |