tutor/tutor/commands/compose.py

482 lines
16 KiB
Python

from __future__ import annotations
import os
import typing as t
import click
from tutor import bindmount
from tutor import config as tutor_config
from tutor import env as tutor_env
from tutor import fmt, hooks
from tutor import interactive as interactive_config
from tutor import utils
from tutor.commands import images, jobs
from tutor.commands.config import save as config_save_command
from tutor.commands.context import BaseTaskContext
from tutor.commands.upgrade import OPENEDX_RELEASE_NAMES
from tutor.commands.upgrade.compose import upgrade_from
from tutor.core.hooks import Filter # pylint: disable=unused-import
from tutor.exceptions import TutorError
from tutor.tasks import BaseComposeTaskRunner
from tutor.types import Config
class ComposeTaskRunner(BaseComposeTaskRunner):
def __init__(self, root: str, config: Config):
super().__init__(root, config)
self.project_name = ""
self.docker_compose_files: list[str] = []
self.docker_compose_job_files: list[str] = []
def docker_compose(self, *command: str) -> int:
"""
Run docker-compose with the right yml files.
"""
if "start" in command or "up" in command or "restart" in command:
# Note that we don't trigger the action on "run". That's because we
# don't want to trigger the action for every initialization script.
hooks.Actions.COMPOSE_PROJECT_STARTED.do(
self.root, self.config, self.project_name
)
args = []
for docker_compose_path in self.docker_compose_files:
if os.path.exists(docker_compose_path):
args += ["-f", docker_compose_path]
return utils.docker_compose(
*args, "--project-name", self.project_name, *command
)
def run_task(self, service: str, command: str) -> int:
"""
Run the "{{ service }}-job" service from local/docker-compose.jobs.yml with the
specified command.
"""
run_command = []
for docker_compose_path in self.docker_compose_job_files:
path = tutor_env.pathjoin(self.root, docker_compose_path)
if os.path.exists(path):
run_command += ["-f", path]
run_command += ["run", "--rm"]
if not utils.is_a_tty():
run_command += ["-T"]
job_service_name = f"{service}-job"
return self.docker_compose(
*run_command,
job_service_name,
"sh",
"-e",
"-c",
command,
)
class BaseComposeContext(BaseTaskContext):
NAME: t.Literal["local", "dev"]
def job_runner(self, config: Config) -> ComposeTaskRunner:
raise NotImplementedError
@click.command(help="Configure and run Open edX from scratch")
@click.option("-I", "--non-interactive", is_flag=True, help="Run non-interactively")
@click.option("-p", "--pullimages", is_flag=True, help="Update docker images")
@click.option("--skip-build", is_flag=True, help="Skip building Docker images")
@click.pass_context
def launch(
context: click.Context,
non_interactive: bool,
pullimages: bool,
skip_build: bool,
) -> None:
context_name = context.obj.NAME
run_for_prod = False if context_name == "dev" else None
utils.warn_macos_docker_memory()
# Upgrade has to run before configuration
interactive_upgrade(context, not non_interactive, run_for_prod=run_for_prod)
interactive_configuration(context, not non_interactive, run_for_prod=run_for_prod)
config = tutor_config.load(context.obj.root)
if not skip_build:
click.echo(fmt.title("Building Docker images"))
images_to_build = hooks.Filters.IMAGES_BUILD_REQUIRED.apply([], context_name)
if not images_to_build:
fmt.echo_info("No image to build")
context.invoke(images.build, image_names=images_to_build)
click.echo(fmt.title("Stopping any existing platform"))
context.invoke(stop)
if pullimages:
click.echo(fmt.title("Docker image updates"))
context.invoke(dc_command, command="pull")
click.echo(fmt.title("Starting the platform in detached mode"))
context.invoke(start, detach=True)
click.echo(fmt.title("Database creation and migrations"))
context.invoke(do.commands["init"])
# Print the urls of the user-facing apps
public_app_hosts = ""
for host in hooks.Filters.APP_PUBLIC_HOSTS.iterate(context_name):
public_app_host = tutor_env.render_str(
config, "{% if ENABLE_HTTPS %}https{% else %}http{% endif %}://" + host
)
public_app_hosts += f" {public_app_host}\n"
if public_app_hosts:
fmt.echo_info(
f"""The platform is now running and can be accessed at the following urls:
{public_app_hosts}"""
)
def interactive_upgrade(
context: click.Context, interactive: bool, run_for_prod: t.Optional[bool]
) -> None:
"""
Piece of code that is only used in launch.
"""
run_upgrade_from_release = tutor_env.should_upgrade_from_release(context.obj.root)
if run_upgrade_from_release is not None:
click.echo(fmt.title("Upgrading from an older release"))
if interactive:
to_release = tutor_env.get_current_open_edx_release_name()
question = f"""You are about to upgrade your Open edX platform from {run_upgrade_from_release.capitalize()} to {to_release.capitalize()}
It is strongly recommended to make a backup before upgrading. To do so, run:
tutor local stop # or 'tutor dev stop' in development
sudo rsync -avr "$(tutor config printroot)"/ /tmp/tutor-backup/
In case of problem, to restore your backup you will then have to run: sudo rsync -avr /tmp/tutor-backup/ "$(tutor config printroot)"/
Are you sure you want to continue?"""
click.confirm(
fmt.question(question), default=True, abort=True, prompt_suffix=" "
)
context.invoke(
upgrade,
from_release=run_upgrade_from_release,
)
# Update env and configuration
# Don't run in interactive mode, otherwise users gets prompted twice.
interactive_configuration(context, False, run_for_prod)
# Post upgrade
if interactive:
question = f"""Your platform is being upgraded from {run_upgrade_from_release.capitalize()}.
If you run custom Docker images, you must rebuild them now by running the following command in a different shell:
tutor images build all # list your custom images here
See the documentation for more information:
https://docs.tutor.edly.io/install.html#upgrading-to-a-new-open-edx-release
Press enter when you are ready to continue"""
click.confirm(
fmt.question(question), default=True, abort=True, prompt_suffix=" "
)
def interactive_configuration(
context: click.Context, interactive: bool, run_for_prod: t.Optional[bool] = None
) -> None:
click.echo(fmt.title("Interactive platform configuration"))
config = tutor_config.load_minimal(context.obj.root)
if interactive:
interactive_config.ask_questions(config, run_for_prod=run_for_prod)
tutor_config.save_config_file(context.obj.root, config)
config = tutor_config.load_full(context.obj.root)
tutor_env.save(context.obj.root, config)
@click.command(
short_help="Perform release-specific upgrade tasks",
help="Perform release-specific upgrade tasks. To perform a full upgrade remember to run `launch`.",
)
@click.option(
"--from",
"from_release",
type=click.Choice(OPENEDX_RELEASE_NAMES),
)
@click.pass_context
def upgrade(context: click.Context, from_release: t.Optional[str]) -> None:
fmt.echo_alert(
"This command only performs a partial upgrade of your Open edX platform. "
"To perform a full upgrade, you should run `tutor local launch` (or `tutor dev launch` "
"in development)."
)
if from_release is None:
from_release = tutor_env.get_env_release(context.obj.root)
if from_release is None:
fmt.echo_info("Your environment is already up-to-date")
else:
upgrade_from(context, from_release)
# We update the environment to update the version
context.invoke(config_save_command)
@click.command(
short_help="Run all or a selection of services.",
help="Run all or a selection of services. Docker images will be rebuilt where necessary.",
)
@click.option("--build", is_flag=True, help="Build images on start")
@click.option("-d", "--detach", is_flag=True, help="Start in daemon mode")
@click.argument("services", metavar="service", nargs=-1)
@click.pass_obj
def start(
context: BaseComposeContext,
build: bool,
detach: bool,
services: list[str],
) -> None:
command = ["up", "--remove-orphans"]
if build:
command.append("--build")
if detach:
command.append("-d")
# Start services
config = tutor_config.load(context.root)
context.job_runner(config).docker_compose(*command, *services)
@click.command(help="Stop a running platform")
@click.argument("services", metavar="service", nargs=-1)
@click.pass_obj
def stop(context: BaseComposeContext, services: list[str]) -> None:
config = tutor_config.load(context.root)
context.job_runner(config).docker_compose("stop", *services)
@click.command(
short_help="Reboot an existing platform",
help="This is more than just a restart: with reboot, the platform is fully stopped before being restarted again",
)
@click.option("-d", "--detach", is_flag=True, help="Start in daemon mode")
@click.argument("services", metavar="service", nargs=-1)
@click.pass_context
def reboot(context: click.Context, detach: bool, services: list[str]) -> None:
context.invoke(stop, services=services)
context.invoke(start, detach=detach, services=services)
@click.command(
short_help="Restart some components from a running platform.",
help="""Specify 'openedx' to restart the lms, cms and workers, or 'all' to
restart all services. Note that this performs a 'docker compose restart', so new images
may not be taken into account. It is useful for reloading settings, for instance. To
fully stop the platform, use the 'reboot' command.""",
)
@click.argument("services", metavar="service", nargs=-1)
@click.pass_obj
def restart(context: BaseComposeContext, services: list[str]) -> None:
config = tutor_config.load(context.root)
command = ["restart"]
if "all" in services:
pass
else:
for service in services:
if service == "openedx":
command += ["lms", "lms-worker", "cms", "cms-worker"]
else:
command.append(service)
context.job_runner(config).docker_compose(*command)
@jobs.do_group
def do() -> None:
"""
Run a custom job in the right container(s).
"""
@click.command(
short_help="Run a command in a new container",
help=(
"Run a command in a new container. This is a wrapper around `docker compose run`. Any option or argument passed"
" to this command will be forwarded to docker compose. Thus, you may use `-v` or `-p` to mount volumes and"
" expose ports."
),
context_settings={"ignore_unknown_options": True},
)
@click.argument("args", nargs=-1, required=True)
@click.pass_context
def run(
context: click.Context,
args: list[str],
) -> None:
extra_args = ["--rm"]
if not utils.is_a_tty():
extra_args.append("-T")
context.invoke(dc_command, command="run", args=[*extra_args, *args])
@click.command(
name="copyfrom",
help="Copy files/folders from a container directory to the local filesystem.",
)
@click.argument("service")
@click.argument("container_path")
@click.argument(
"host_path",
type=click.Path(dir_okay=True, file_okay=False, resolve_path=True),
)
@click.pass_obj
def copyfrom(
context: BaseComposeContext, service: str, container_path: str, host_path: str
) -> None:
# Path management
container_root_path = "/tmp/mount"
container_dst_path = container_root_path
if not os.path.exists(host_path):
# Emulate cp semantics, where if the destination path does not exist
# then we copy to its parent and rename to the destination folder
container_dst_path += "/" + os.path.basename(host_path)
host_path = os.path.dirname(host_path)
if not os.path.exists(host_path):
raise TutorError(
f"Cannot create directory {host_path}. No such file or directory."
)
# cp/mv commands
command = f"cp --recursive --preserve {container_path} {container_dst_path}"
config = tutor_config.load(context.root)
runner = context.job_runner(config)
runner.docker_compose(
"run",
"--rm",
"--no-deps",
"--user=0",
f"--volume={host_path}:{container_root_path}",
service,
"sh",
"-e",
"-c",
command,
)
@click.command(
short_help="Run a command in a running container",
help=(
"Run a command in a running container. This is a wrapper around `docker compose exec`. Any option or argument"
" passed to this command will be forwarded to docker-compose. Thus, you may use `-e` to manually define"
" environment variables."
),
context_settings={"ignore_unknown_options": True},
name="exec",
)
@click.argument("args", nargs=-1, required=True)
@click.pass_context
def execute(context: click.Context, args: list[str]) -> None:
context.invoke(dc_command, command="exec", args=args)
@click.command(
short_help="View output from containers",
help="View output from containers. This is a wrapper around `docker compose logs`.",
)
@click.option("-f", "--follow", is_flag=True, help="Follow log output")
@click.option("--tail", type=int, help="Number of lines to show from each container")
@click.argument("service", nargs=-1)
@click.pass_context
def logs(context: click.Context, follow: bool, tail: bool, service: str) -> None:
args = []
if follow:
args.append("--follow")
if tail is not None:
args += ["--tail", str(tail)]
args += service
context.invoke(dc_command, command="logs", args=args)
@click.command(help="Print status information for containers")
@click.pass_context
def status(context: click.Context) -> None:
context.invoke(dc_command, command="ps")
@click.command(
short_help="Direct interface to docker compose.",
help=(
"Direct interface to docker compose. This is a wrapper around `docker compose`. Most commands, options and"
" arguments passed to this command will be forwarded as-is to docker compose."
),
context_settings={"ignore_unknown_options": True},
name="dc",
)
@click.argument("command")
@click.argument("args", nargs=-1)
@click.pass_obj
def dc_command(
context: BaseComposeContext,
command: str,
args: list[str],
) -> None:
config = tutor_config.load(context.root)
context.job_runner(config).docker_compose(command, *args)
@hooks.Filters.COMPOSE_MOUNTS.add()
def _mount_edx_platform(
volumes: list[tuple[str, str]], name: str
) -> list[tuple[str, str]]:
"""
When mounting edx-platform with `tutor mounts add /path/to/edx-platform`,
bind-mount the host repo in the lms/cms containers.
"""
if name == "edx-platform":
path = "/openedx/edx-platform"
volumes += [
("lms", path),
("cms", path),
("lms-worker", path),
("cms-worker", path),
("lms-job", path),
("cms-job", path),
]
return volumes
@hooks.Filters.APP_PUBLIC_HOSTS.add()
def _edx_platform_public_hosts(
hosts: list[str], context_name: t.Literal["local", "dev"]
) -> list[str]:
if context_name == "dev":
hosts += ["{{ LMS_HOST }}:8000", "{{ CMS_HOST }}:8001"]
else:
hosts += ["{{ LMS_HOST }}", "{{ CMS_HOST }}"]
return hosts
hooks.Filters.ENV_TEMPLATE_VARIABLES.add_item(("iter_mounts", bindmount.iter_mounts))
def add_commands(command_group: click.Group) -> None:
command_group.add_command(launch)
command_group.add_command(upgrade)
command_group.add_command(start)
command_group.add_command(stop)
command_group.add_command(restart)
command_group.add_command(reboot)
command_group.add_command(dc_command)
command_group.add_command(run)
command_group.add_command(copyfrom)
command_group.add_command(execute)
command_group.add_command(logs)
command_group.add_command(status)
@hooks.Actions.PLUGINS_LOADED.add()
def _add_do_commands() -> None:
jobs.add_job_commands(do)
command_group.add_command(do)