Roy Crihfield
b1a489ef1b
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For custom deploy commands
88 lines
3.2 KiB
Python
88 lines
3.2 KiB
Python
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# Copyright © 2022, 2023 Vulcanize
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Affero General Public License for more details.
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# You should have received a copy of the GNU Affero General Public License
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# along with this program. If not, see <http:#www.gnu.org/licenses/>.
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import hashlib
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import os
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from pathlib import Path
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from stack_orchestrator import constants
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from stack_orchestrator.util import get_yaml
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from stack_orchestrator.deploy.stack import Stack
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from stack_orchestrator.deploy.spec import Spec
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class DeploymentContext:
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deployment_dir: Path
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id: str
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spec: Spec
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stack: Stack
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def get_stack_file(self):
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return self.deployment_dir.joinpath(constants.stack_file_name)
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def get_spec_file(self):
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return self.deployment_dir.joinpath(constants.spec_file_name)
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def get_env_file(self):
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return self.deployment_dir.joinpath(constants.config_file_name)
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def get_deployment_file(self):
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return self.deployment_dir.joinpath(constants.deployment_file_name)
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def get_compose_dir(self):
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return self.deployment_dir.joinpath(constants.compose_dir_name)
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def get_compose_file(self, name: str):
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return self.get_compose_dir() / f"docker-compose-{name}.yml"
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def get_cluster_id(self):
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return self.id
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def init(self, dir: Path):
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self.deployment_dir = dir.absolute()
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self.spec = Spec()
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self.spec.init_from_file(self.get_spec_file())
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self.stack = Stack(self.spec.obj["stack"])
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self.stack.init_from_file(self.get_stack_file())
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deployment_file_path = self.get_deployment_file()
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if deployment_file_path.exists():
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obj = get_yaml().load(open(deployment_file_path, "r"))
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self.id = obj[constants.cluster_id_key]
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# Handle the case of a legacy deployment with no file
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# Code below is intended to match the output from _make_default_cluster_name()
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# TODO: remove when we no longer need to support legacy deployments
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else:
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path = os.path.realpath(os.path.abspath(self.get_compose_dir()))
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unique_cluster_descriptor = f"{path},{self.get_stack_file()},None,None"
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hash = hashlib.md5(unique_cluster_descriptor.encode()).hexdigest()[:16]
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self.id = f"{constants.cluster_name_prefix}{hash}"
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def modify_yaml(self, file_path: Path, modifier_func):
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"""
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Load a YAML from the deployment, apply a modification function, and write it back.
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"""
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if not file_path.absolute().is_relative_to(self.deployment_dir):
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raise ValueError(f"File is not inside deployment directory: {file_path}")
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yaml = get_yaml()
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with open(file_path, 'r') as f:
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yaml_data = yaml.load(f)
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modifier_func(yaml_data)
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with open(file_path, 'w') as f:
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yaml.dump(yaml_data, f)
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