Roy Crihfield
36d4969b2d
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Fixes - stack path resolution for `build` - external stack path resolution for deployments - "extra" config detection - `deployment ports` command - `version` command in dist or source install (without build_tag.txt) - `setup-repos`, so it won't die when an existing repo is not at a branch or exact tag Used in cerc-io/fixturenet-eth-stacks#14 Reviewed-on: #851 Reviewed-by: David Boreham <dboreham@noreply.git.vdb.to>
463 lines
19 KiB
Python
463 lines
19 KiB
Python
# 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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# Deploys the system components using a deployer (either docker-compose or k8s)
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import hashlib
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import copy
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import os
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import sys
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from dataclasses import dataclass
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from importlib import resources
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import subprocess
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import click
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from pathlib import Path
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from stack_orchestrator import constants
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from stack_orchestrator.opts import opts
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from stack_orchestrator.util import (
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get_stack_path,
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include_exclude_check,
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get_parsed_stack_config,
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global_options2,
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get_dev_root_path,
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stack_is_in_deployment,
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resolve_compose_file,
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)
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from stack_orchestrator.deploy.deployer import Deployer, DeployerException
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from stack_orchestrator.deploy.deployer_factory import getDeployer
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from stack_orchestrator.deploy.deploy_types import ClusterContext, DeployCommandContext
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from stack_orchestrator.deploy.deployment_context import DeploymentContext
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from stack_orchestrator.deploy.deployment_create import create as deployment_create
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from stack_orchestrator.deploy.deployment_create import init as deployment_init
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from stack_orchestrator.deploy.deployment_create import setup as deployment_setup
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@click.group()
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@click.option("--include", help="only start these components")
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@click.option("--exclude", help="don\'t start these components")
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@click.option("--env-file", help="env file to be used")
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@click.option("--cluster", help="specify a non-default cluster name")
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@click.option("--deploy-to", help="cluster system to deploy to (compose or k8s or k8s-kind)")
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@click.pass_context
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def command(ctx, include, exclude, env_file, cluster, deploy_to):
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'''deploy a stack'''
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# Although in theory for some subcommands (e.g. deploy create) the stack can be inferred,
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# Click doesn't allow us to know that here, so we make providing the stack mandatory
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stack = global_options2(ctx).stack
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if not stack:
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print("Error: --stack option is required")
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sys.exit(1)
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if ctx.parent.obj.debug:
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print(f"ctx.parent.obj: {ctx.parent.obj}")
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if deploy_to is None:
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deploy_to = "compose"
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stack = get_stack_path(stack)
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ctx.obj = create_deploy_context(global_options2(ctx), None, stack, include, exclude, cluster, env_file, deploy_to)
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# Subcommand is executed now, by the magic of click
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def create_deploy_context(
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global_context,
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deployment_context: DeploymentContext,
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stack,
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include,
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exclude,
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cluster,
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env_file,
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deploy_to) -> DeployCommandContext:
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# Extract the cluster name from the deployment, if we have one
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if deployment_context and cluster is None:
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cluster = deployment_context.get_cluster_id()
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cluster_context = _make_cluster_context(global_context, stack, include, exclude, cluster, env_file)
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deployer = getDeployer(deploy_to, deployment_context, compose_files=cluster_context.compose_files,
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compose_project_name=cluster_context.cluster,
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compose_env_file=cluster_context.env_file)
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return DeployCommandContext(stack, cluster_context, deployer)
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def up_operation(ctx, services_list, stay_attached=False):
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global_context = ctx.parent.parent.obj
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deploy_context = ctx.obj
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cluster_context = deploy_context.cluster_context
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container_exec_env = _make_runtime_env(global_context)
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for attr, value in container_exec_env.items():
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os.environ[attr] = value
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if global_context.verbose:
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print(f"Running compose up with container_exec_env: {container_exec_env}, extra_args: {services_list}")
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for pre_start_command in cluster_context.pre_start_commands:
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_run_command(global_context, cluster_context.cluster, pre_start_command)
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deploy_context.deployer.up(detach=not stay_attached, services=services_list)
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for post_start_command in cluster_context.post_start_commands:
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_run_command(global_context, cluster_context.cluster, post_start_command)
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_orchestrate_cluster_config(global_context, cluster_context.config, deploy_context.deployer, container_exec_env)
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def down_operation(ctx, delete_volumes, extra_args_list):
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timeout_arg = None
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if extra_args_list:
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timeout_arg = extra_args_list[0]
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# Specify shutdown timeout (default 10s) to give services enough time to shutdown gracefully
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ctx.obj.deployer.down(timeout=timeout_arg, volumes=delete_volumes)
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def status_operation(ctx):
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ctx.obj.deployer.status()
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def update_operation(ctx):
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ctx.obj.deployer.update()
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def ps_operation(ctx):
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global_context = ctx.parent.parent.obj
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if not global_context.dry_run:
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container_list = ctx.obj.deployer.ps()
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if len(container_list) > 0:
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print("Running containers:")
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for container in container_list:
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print(f"id: {container.id}, name: {container.name}, ports: ", end="")
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ports = container.network_settings.ports
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comma = ""
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for port_mapping in ports.keys():
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mapping = ports[port_mapping]
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print(comma, end="")
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if mapping is None:
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print(f"{port_mapping}", end="")
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else:
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print(f"{mapping[0]['HostIp']}:{mapping[0]['HostPort']}->{port_mapping}", end="")
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comma = ", "
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print()
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else:
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print("No containers running")
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def port_operation(ctx, extra_args):
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global_context = ctx.parent.parent.obj
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extra_args_list = list(extra_args) or None
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if not global_context.dry_run:
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if extra_args_list is None or len(extra_args_list) < 2:
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print("Usage: port <service> <exposed-port>")
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sys.exit(1)
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service_name = extra_args_list[0]
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exposed_port = extra_args_list[1]
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if global_context.verbose:
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print(f"Running compose port {service_name} {exposed_port}")
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mapped_port_data = ctx.obj.deployer.port(service_name, exposed_port)
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print(f"{mapped_port_data[0]}:{mapped_port_data[1]}")
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def exec_operation(ctx, extra_args):
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global_context = ctx.parent.parent.obj
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extra_args_list = list(extra_args) or None
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if not global_context.dry_run:
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if extra_args_list is None or len(extra_args_list) < 2:
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print("Usage: exec <service> <cmd>")
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sys.exit(1)
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service_name = extra_args_list[0]
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command_to_exec = ["sh", "-c"] + extra_args_list[1:]
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container_exec_env = _make_runtime_env(global_context)
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if global_context.verbose:
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print(f"Running compose exec {service_name} {command_to_exec}")
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try:
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ctx.obj.deployer.execute(service_name, command_to_exec, envs=container_exec_env, tty=True)
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except DeployerException:
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print("container command returned error exit status")
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def logs_operation(ctx, tail: int, follow: bool, extra_args: str):
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extra_args_list = list(extra_args) or None
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services_list = extra_args_list if extra_args_list is not None else []
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logs_stream = ctx.obj.deployer.logs(services=services_list, tail=tail, follow=follow, stream=True)
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for stream_type, stream_content in logs_stream:
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print(stream_content.decode("utf-8"), end="")
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@command.command()
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@click.argument('extra_args', nargs=-1) # help: command: up <service1> <service2>
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@click.pass_context
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def up(ctx, extra_args):
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extra_args_list = list(extra_args) or None
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up_operation(ctx, extra_args_list)
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@command.command()
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@click.option("--delete-volumes/--preserve-volumes", default=False, help="delete data volumes")
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@click.argument('extra_args', nargs=-1) # help: command: down<service1> <service2>
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@click.pass_context
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def down(ctx, delete_volumes, extra_args):
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extra_args_list = list(extra_args) or None
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down_operation(ctx, delete_volumes, extra_args_list)
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@command.command()
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@click.pass_context
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def ps(ctx):
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ps_operation(ctx)
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@command.command()
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@click.argument('extra_args', nargs=-1) # help: command: port <service1> <service2>
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@click.pass_context
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def port(ctx, extra_args):
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port_operation(ctx, extra_args)
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@command.command()
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@click.argument('extra_args', nargs=-1) # help: command: exec <service> <command>
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@click.pass_context
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def exec(ctx, extra_args):
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exec_operation(ctx, extra_args)
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@command.command()
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@click.option("--tail", "-n", default=None, help="number of lines to display")
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@click.option("--follow", "-f", is_flag=True, default=False, help="follow log output")
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@click.argument('extra_args', nargs=-1) # help: command: logs <service1> <service2>
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@click.pass_context
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def logs(ctx, tail, follow, extra_args):
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logs_operation(ctx, tail, follow, extra_args)
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def get_stack_status(ctx, stack):
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ctx_copy = copy.copy(ctx)
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ctx_copy.stack = stack
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cluster_context = _make_cluster_context(ctx_copy, stack, None, None, None, None)
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deployer = Deployer(compose_files=cluster_context.compose_files, compose_project_name=cluster_context.cluster)
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# TODO: refactor to avoid duplicating this code above
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if ctx.verbose:
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print("Running compose ps")
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container_list = deployer.ps()
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if len(container_list) > 0:
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if ctx.debug:
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print(f"Container list from compose ps: {container_list}")
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return True
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else:
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if ctx.debug:
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print("No containers found from compose ps")
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False
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def _make_runtime_env(ctx):
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container_exec_env = {
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"CERC_HOST_UID": f"{os.getuid()}",
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"CERC_HOST_GID": f"{os.getgid()}"
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}
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container_exec_env.update({"CERC_SCRIPT_DEBUG": "true"} if ctx.debug else {})
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return container_exec_env
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def _make_default_cluster_name(deployment, compose_dir, stack, include, exclude):
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# Create default unique, stable cluster name from confile file path and stack name if provided
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if deployment:
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path = os.path.realpath(os.path.abspath(compose_dir))
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else:
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path = "internal"
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unique_cluster_descriptor = f"{path},{stack},{include},{exclude}"
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if opts.o.debug:
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print(f"pre-hash descriptor: {unique_cluster_descriptor}")
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hash = hashlib.md5(unique_cluster_descriptor.encode()).hexdigest()[:16]
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cluster = f"{constants.cluster_name_prefix}{hash}"
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if opts.o.debug:
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print(f"Using cluster name: {cluster}")
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return cluster
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# stack has to be either PathLike pointing to a stack yml file, or a string with the name of a known stack
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def _make_cluster_context(ctx, stack, include, exclude, cluster, env_file):
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dev_root_path = get_dev_root_path(ctx)
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# TODO: hack, this should be encapsulated by the deployment context.
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deployment = stack_is_in_deployment(stack)
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if deployment:
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compose_dir = stack.joinpath("compose")
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else:
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# See: https://stackoverflow.com/questions/25389095/python-get-path-of-root-project-structure
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compose_dir = Path(__file__).absolute().parent.parent.joinpath("data", "compose")
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if cluster is None:
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cluster = _make_default_cluster_name(deployment, compose_dir, stack, include, exclude)
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else:
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_make_default_cluster_name(deployment, compose_dir, stack, include, exclude)
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# See: https://stackoverflow.com/a/20885799/1701505
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from stack_orchestrator import data
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with resources.open_text(data, "pod-list.txt") as pod_list_file:
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all_pods = pod_list_file.read().splitlines()
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pods_in_scope = []
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if stack:
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stack_config = get_parsed_stack_config(stack)
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# TODO: syntax check the input here
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pods_in_scope = stack_config['pods']
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cluster_config = stack_config['config'] if 'config' in stack_config else None
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else:
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pods_in_scope = all_pods
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cluster_config = None
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# Convert all pod definitions to v1.1 format
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pods_in_scope = _convert_to_new_format(pods_in_scope)
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if ctx.verbose:
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print(f"Pods: {pods_in_scope}")
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# Construct a docker compose command suitable for our purpose
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compose_files = []
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pre_start_commands = []
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post_start_commands = []
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for pod in pods_in_scope:
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pod_name = pod["name"]
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pod_repository = pod["repository"]
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pod_path = pod["path"]
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if include_exclude_check(pod_name, include, exclude):
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if pod_repository is None or pod_repository == "internal":
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if deployment:
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compose_file_name = os.path.join(compose_dir, f"docker-compose-{pod_path}.yml")
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else:
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compose_file_name = resolve_compose_file(stack, pod_name)
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else:
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if deployment:
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compose_file_name = os.path.join(compose_dir, f"docker-compose-{pod_name}.yml")
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pod_pre_start_command = pod.get("pre_start_command")
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pod_post_start_command = pod.get("post_start_command")
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script_dir = compose_dir.parent.joinpath("pods", pod_name, "scripts")
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if pod_pre_start_command is not None:
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pre_start_commands.append(os.path.join(script_dir, pod_pre_start_command))
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if pod_post_start_command is not None:
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post_start_commands.append(os.path.join(script_dir, pod_post_start_command))
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else:
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# TODO: fix this code for external stack with scripts
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pod_root_dir = os.path.join(dev_root_path, pod_repository.split("/")[-1], pod["path"])
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compose_file_name = os.path.join(pod_root_dir, f"docker-compose-{pod_name}.yml")
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pod_pre_start_command = pod.get("pre_start_command")
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pod_post_start_command = pod.get("post_start_command")
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if pod_pre_start_command is not None:
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pre_start_commands.append(os.path.join(pod_root_dir, pod_pre_start_command))
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if pod_post_start_command is not None:
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post_start_commands.append(os.path.join(pod_root_dir, pod_post_start_command))
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compose_files.append(compose_file_name)
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else:
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if ctx.verbose:
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print(f"Excluding: {pod_name}")
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if ctx.verbose:
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print(f"files: {compose_files}")
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return ClusterContext(ctx, cluster, compose_files, pre_start_commands, post_start_commands, cluster_config, env_file)
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def _convert_to_new_format(old_pod_array):
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new_pod_array = []
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for old_pod in old_pod_array:
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if isinstance(old_pod, dict):
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new_pod_array.append(old_pod)
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else:
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new_pod = {
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"name": old_pod,
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"repository": "internal",
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"path": old_pod
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}
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new_pod_array.append(new_pod)
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return new_pod_array
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def _run_command(ctx, cluster_name, command):
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if ctx.verbose:
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print(f"Running command: {command}")
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command_dir = os.path.dirname(command)
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command_file = os.path.join(".", os.path.basename(command))
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command_env = os.environ.copy()
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command_env["CERC_SO_COMPOSE_PROJECT"] = cluster_name
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if ctx.debug:
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command_env["CERC_SCRIPT_DEBUG"] = "true"
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command_result = subprocess.run(command_file, shell=True, env=command_env, cwd=command_dir)
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if command_result.returncode != 0:
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print(f"FATAL Error running command: {command}")
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sys.exit(1)
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def _orchestrate_cluster_config(ctx, cluster_config, deployer, container_exec_env):
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@dataclass
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class ConfigDirective:
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source_container: str
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source_variable: str
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destination_container: str
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destination_variable: str
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if cluster_config is not None:
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for container in cluster_config:
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container_config = cluster_config[container]
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if ctx.verbose:
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print(f"{container} config: {container_config}")
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for directive in container_config:
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pd = ConfigDirective(
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container_config[directive].split(".")[0],
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container_config[directive].split(".")[1],
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container,
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directive
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)
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if ctx.verbose:
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print(f"Setting {pd.destination_container}.{pd.destination_variable}"
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f" = {pd.source_container}.{pd.source_variable}")
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# TODO: add a timeout
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waiting_for_data = True
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destination_output = "*** no output received yet ***"
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while waiting_for_data:
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# TODO: fix the script paths so they're consistent between containers
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source_value = None
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try:
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source_value = deployer.execute(pd.source_container,
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["sh", "-c",
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"sh /docker-entrypoint-scripts.d/export-"
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f"{pd.source_variable}.sh"],
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tty=False,
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envs=container_exec_env)
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except DeployerException as error:
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if ctx.debug:
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print(f"Docker exception reading config source: {error}")
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# If the script executed failed for some reason, we get:
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# "It returned with code 1"
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if "It returned with code 1" in str(error):
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if ctx.verbose:
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print("Config export script returned an error, re-trying")
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# If the script failed to execute (e.g. the file is not there) then we get:
|
|
# "It returned with code 2"
|
|
if "It returned with code 2" in str(error):
|
|
print(f"Fatal error reading config source: {error}")
|
|
if source_value:
|
|
if ctx.debug:
|
|
print(f"fetched source value: {source_value}")
|
|
destination_output = deployer.execute(pd.destination_container,
|
|
["sh", "-c",
|
|
f"sh /scripts/import-{pd.destination_variable}.sh"
|
|
f" {source_value}"],
|
|
tty=False,
|
|
envs=container_exec_env)
|
|
waiting_for_data = False
|
|
if ctx.debug and not waiting_for_data:
|
|
print(f"destination output: {destination_output}")
|
|
|
|
|
|
command.add_command(deployment_init)
|
|
command.add_command(deployment_create)
|
|
command.add_command(deployment_setup)
|