124 lines
4.7 KiB
Python
124 lines
4.7 KiB
Python
# Copyright ©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 click
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import os
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from pathlib import Path
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from urllib.parse import urlparse
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from tempfile import NamedTemporaryFile
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from stack_orchestrator.util import error_exit, global_options2
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from stack_orchestrator.deploy.deployment_create import init_operation, create_operation
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from stack_orchestrator.deploy.deploy import create_deploy_context
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from stack_orchestrator.deploy.deploy_types import DeployCommandContext
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def _fixup_container_tag(deployment_dir: str, image: str):
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deployment_dir_path = Path(deployment_dir)
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compose_file = deployment_dir_path.joinpath("compose", "docker-compose-webapp-template.yml")
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# replace "cerc/webapp-container:local" in the file with our image tag
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with open(compose_file) as rfile:
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contents = rfile.read()
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contents = contents.replace("cerc/webapp-container:local", image)
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with open(compose_file, "w") as wfile:
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wfile.write(contents)
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def _fixup_url_spec(spec_file_name: str, url: str):
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# url is like: https://example.com/path
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parsed_url = urlparse(url)
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http_proxy_spec = f'''
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http-proxy:
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- host-name: {parsed_url.hostname}
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routes:
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- path: '{parsed_url.path if parsed_url.path else "/"}'
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proxy-to: webapp:3000
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'''
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spec_file_path = Path(spec_file_name)
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with open(spec_file_path) as rfile:
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contents = rfile.read()
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contents = contents + http_proxy_spec
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with open(spec_file_path, "w") as wfile:
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wfile.write(contents)
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def create_deployment(ctx, deployment_dir, image, url, kube_config, image_registry, env_file):
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# Do the equivalent of:
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# 1. laconic-so --stack webapp-template deploy --deploy-to k8s init --output webapp-spec.yml
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# --config (eqivalent of the contents of my-config.env)
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# 2. laconic-so --stack webapp-template deploy --deploy-to k8s create --deployment-dir test-deployment
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# --spec-file webapp-spec.yml
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# 3. Replace the container image tag with the specified image
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deployment_dir_path = Path(deployment_dir)
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# Check the deployment dir does not exist
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if deployment_dir_path.exists():
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error_exit(f"Deployment dir {deployment_dir} already exists")
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# Generate a temporary file name for the spec file
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tf = NamedTemporaryFile(prefix="webapp-", suffix=".yml", delete=False)
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spec_file_name = tf.name
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# Specify the webapp template stack
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stack = "webapp-template"
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# TODO: support env file
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deploy_command_context: DeployCommandContext = create_deploy_context(
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global_options2(ctx), None, stack, None, None, None, env_file, "k8s"
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)
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init_operation(
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deploy_command_context,
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stack,
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"k8s",
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None,
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env_file,
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kube_config,
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image_registry,
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spec_file_name,
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None
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)
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# Add the TLS and DNS spec
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_fixup_url_spec(spec_file_name, url)
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create_operation(
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deploy_command_context,
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spec_file_name,
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deployment_dir,
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None,
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None
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)
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# Fix up the container tag inside the deployment compose file
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_fixup_container_tag(deployment_dir, image)
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os.remove(spec_file_name)
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@click.group()
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@click.pass_context
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def command(ctx):
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'''manage a webapp deployment'''
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# Check that --stack wasn't supplied
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if ctx.parent.obj.stack:
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error_exit("--stack can't be supplied with the deploy-webapp command")
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@command.command()
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@click.option("--kube-config", help="Provide a config file for a k8s deployment")
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@click.option("--image-registry", help="Provide a container image registry url for this k8s cluster")
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@click.option("--deployment-dir", help="Create deployment files in this directory", required=True)
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@click.option("--image", help="image to deploy", required=True)
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@click.option("--url", help="url to serve", required=True)
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@click.option("--env-file", help="environment file for webapp")
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@click.pass_context
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def create(ctx, deployment_dir, image, url, kube_config, image_registry, env_file):
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'''create a deployment for the specified webapp container'''
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return create_deployment(ctx, deployment_dir, image, url, kube_config, image_registry, env_file)
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