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stack-orchestrator/app/deploy_system.py

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# Copyright © 2022 Cerc
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Affero General Public License for more details.
# You should have received a copy of the GNU Affero General Public License
# along with this program. If not, see <http:#www.gnu.org/licenses/>.
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# Deploys the system components using docker-compose
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import hashlib
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import os
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import sys
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from python_on_whales import DockerClient
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import click
from .util import include_exclude_check
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@click.command()
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@click.option("--include", help="only start these components")
@click.option("--exclude", help="don\'t start these components")
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@click.option("--cluster", help="specify a non-default cluster name")
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@click.argument('command') # help: command: up|down|ps
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@click.pass_context
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def command(ctx, include, exclude, cluster, command):
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'''deploy a stack'''
# TODO: implement option exclusion and command value constraint lost with the move from argparse to click
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quiet = ctx.obj.quiet
verbose = ctx.obj.verbose
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dry_run = ctx.obj.dry_run
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if cluster is None:
# Create default unique, stable cluster name from confile file path
# TODO: change this to the config file path
path = os.path.realpath(sys.argv[0])
hash = hashlib.md5(path.encode()).hexdigest()
cluster = f"laconic-{hash}"
if verbose:
print(f"Using cluster name: {cluster}")
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with open("pod-list.txt") as pod_list_file:
pods = pod_list_file.read().splitlines()
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if verbose:
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print(f'Pods: {pods}')
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# Construct a docker compose command suitable for our purpose
compose_files = []
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for pod in pods:
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if include_exclude_check(pod, include, exclude):
compose_file_name = os.path.join("compose", f"docker-compose-{pod}.yml")
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compose_files.append(compose_file_name)
else:
if not quiet:
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print(f"Excluding: {pod}")
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if verbose:
print(f"files: {compose_files}")
# See: https://gabrieldemarmiesse.github.io/python-on-whales/sub-commands/compose/
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docker = DockerClient(compose_files=compose_files, compose_project_name=cluster)
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if not dry_run:
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if command == "up":
if verbose:
print("Running compose up")
docker.compose.up(detach=True)
elif command == "down":
if verbose:
print("Running compose down")
docker.compose.down()
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elif command == "ps":
if verbose:
print("Running compose ps")
docker.compose.ps()
elif command == "logs":
if verbose:
print("Running compose logs")
docker.compose.logs()