stack-orchestrator/app/deploy-system.py

# Deploys the system components using docker-compose

import os
import argparse
from decouple import config
from python_on_whales import DockerClient

def include_exclude_check(s, args):
    if args.include == None and args.exclude == None:
        return True
    if args.include != None:
        include_list = args.include.split(",")
        return s in include_list
    if args.exclude != None:
        exclude_list = args.exclude.split(",")
        return s not in exclude_list

parser = argparse.ArgumentParser(
    description="deploy the complete stack"
    )
parser.add_argument("command", type=str, nargs=1, choices=['up', 'down', 'ps'], help="command: up|down|ps")
parser.add_argument("--verbose", action="store_true", help="increase output verbosity")
parser.add_argument("--quiet", action="store_true", help="don\'t print informational output")
parser.add_argument("--check-only", action="store_true", help="looks at what\'s already there and checks if it looks good")
parser.add_argument("--dry-run", action="store_true", help="don\'t do anything, just print the commands that would be executed")
group = parser.add_mutually_exclusive_group()
group.add_argument("--exclude", type=str, help="don\'t start these components")
group.add_argument("--include", type=str, help="only start these components")

args = parser.parse_args()

verbose = args.verbose
quiet = args.quiet

print(args)

with open("cluster-list.txt") as cluster_list_file:
    clusters = cluster_list_file.read().splitlines()

if verbose:
    print(f'Cluster components: {clusters}')

# Construct a docker compose command suitable for our purpose

compose_files = []
for cluster in clusters:
    if include_exclude_check(cluster, args):
        compose_file_name = os.path.join("compose", f"docker-compose-{cluster}.yml")
        compose_files.append(compose_file_name)
    else:
        if not quiet:
            print(f"Excluding: {cluster}")

if verbose:
    print(f"files: {compose_files}")

# See: https://gabrieldemarmiesse.github.io/python-on-whales/sub-commands/compose/
docker = DockerClient(compose_files=compose_files)

command = args.command[0]
if not args.dry_run:
    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()