♻️ docker compose reads compose spec file from stdin

services/dynamic-sidecar/src/simcore_service_dynamic_sidecar/core/docker_compose_utils.py

@@ -6,7 +6,7 @@
 
 """
 import logging
-from copy import deepcopy
+from typing import Final
 
 from fastapi import FastAPI
 from models_library.rabbitmq_messages import ProgressType
@@ -17,9 +17,18 @@
 from .docker_utils import get_docker_service_images, pull_images
 from .rabbitmq import post_progress_message, post_sidecar_log_message
 from .settings import ApplicationSettings
-from .utils import CommandResult, async_command, write_to_tmp_file
+from .utils import CommandResult, async_command
 
-logger = logging.getLogger(__name__)
+_logger = logging.getLogger(__name__)
+
+
+_DOCKER_COMPOSE_CLI_ENV: Final[dict[str, str]] = {
+    # NOTE: TIMEOUT adjusted because of:
+    #   https://github.com/docker/compose/issues/3927
+    #   https://github.com/AzuraCast/AzuraCast/issues/3258
+    "DOCKER_CLIENT_TIMEOUT": "120",
+    "COMPOSE_HTTP_TIMEOUT": "120",
+}
 
 
 def _docker_compose_options_from_settings(settings: ApplicationSettings) -> str:
@@ -37,36 +46,32 @@ def _increase_timeout(docker_command_timeout: int | None) -> int | None:
 
 
 @run_sequentially_in_context()
-async def _write_file_and_spawn_process(
-    yaml_content: str,
-    *,
-    command: str,
-    process_termination_timeout: int | None,
+async def _compose_cli_command(
+    yaml_content: str, *, command: str, process_termination_timeout: int | None
 ) -> CommandResult:
-    """The command which accepts {file_path} as an argument for string formatting
+    """
+    This calls is intentionally verbose at DEBUG level
+    """
 
-    ALL docker_compose run sequentially
+    env_vars = _DOCKER_COMPOSE_CLI_ENV
 
-    This calls is intentionally verbose at INFO level
-    """
-    async with write_to_tmp_file(yaml_content) as file_path:
-        cmd = command.format(file_path=file_path)
+    _logger.debug("Runs '%s' with ENV=%s...\n%s", command, env_vars, yaml_content)
 
-        logger.debug("Runs %s ...\n%s", cmd, yaml_content)
+    result = await async_command(
+        command=command,
+        timeout=process_termination_timeout,
+        pipe_as_input=yaml_content,
+        env_vars=env_vars,
+    )
 
-        result = await async_command(
-            command=cmd,
-            timeout=process_termination_timeout,
-        )
-        debug_message = deepcopy(result._asdict())
-        logger.debug(
-            "Finished executing docker compose command '%s' finished_ok='%s' elapsed='%s'\n%s",
-            debug_message["command"],
-            debug_message["success"],
-            debug_message["elapsed"],
-            debug_message["message"],
-        )
-        return result
+    _logger.debug(
+        "Finished executing docker compose command '%s' finished_ok='%s' elapsed='%s'\n%s",
+        result.command,
+        result.success,
+        result.elapsed,
+        result.message,
+    )
+    return result
 
 
 async def docker_compose_config(
@@ -81,10 +86,9 @@ async def docker_compose_config(
     [SEE docker-compose](https://docs.docker.com/engine/reference/commandline/compose_convert/)
     [SEE compose-file](https://docs.docker.com/compose/compose-file/)
     """
-    # NOTE: TIMEOUT adjusted because of https://github.com/docker/compose/issues/3927, https://github.com/AzuraCast/AzuraCast/issues/3258
-    result: CommandResult = await _write_file_and_spawn_process(
+    result: CommandResult = await _compose_cli_command(
         compose_spec_yaml,
-        command='export DOCKER_CLIENT_TIMEOUT=120 && export COMPOSE_HTTP_TIMEOUT=120 && docker compose --file "{file_path}" config',
+        command="docker compose --file - config",
         process_termination_timeout=timeout,
     )
     return result
@@ -121,12 +125,13 @@ async def docker_compose_create(
 
     [SEE docker-compose](https://docs.docker.com/engine/reference/commandline/compose_up/)
     """
-    # NOTE: TIMEOUT adjusted because of https://github.com/docker/compose/issues/3927, https://github.com/AzuraCast/AzuraCast/issues/3258
-    # building is a security risk hence is disabled via "--no-build" parameter
-    result: CommandResult = await _write_file_and_spawn_process(
+    result: CommandResult = await _compose_cli_command(
         compose_spec_yaml,
-        command=f'export DOCKER_CLIENT_TIMEOUT=120 && export COMPOSE_HTTP_TIMEOUT=120 && docker compose {_docker_compose_options_from_settings(settings)} --project-name {settings.DYNAMIC_SIDECAR_COMPOSE_NAMESPACE} --file "{{file_path}}" up'
-        " --no-build --no-start",
+        command=(
+            f"docker compose {_docker_compose_options_from_settings(settings)} "
+            f"--project-name {settings.DYNAMIC_SIDECAR_COMPOSE_NAMESPACE} --file - "
+            "up --no-start --no-build"  # building is a security risk hence is disabled via "--no-build" parameter
+        ),
         process_termination_timeout=None,
     )
     return result
@@ -140,10 +145,13 @@ async def docker_compose_start(
 
     [SEE docker-compose](https://docs.docker.com/engine/reference/commandline/compose_start/)
     """
-    # NOTE: TIMEOUT adjusted because of https://github.com/docker/compose/issues/3927, https://github.com/AzuraCast/AzuraCast/issues/3258
-    result: CommandResult = await _write_file_and_spawn_process(
+    result: CommandResult = await _compose_cli_command(
         compose_spec_yaml,
-        command=f'export DOCKER_CLIENT_TIMEOUT=120 && export COMPOSE_HTTP_TIMEOUT=120 && docker compose {_docker_compose_options_from_settings(settings)} --project-name {settings.DYNAMIC_SIDECAR_COMPOSE_NAMESPACE} --file "{{file_path}}" start',
+        command=(
+            f"docker compose {_docker_compose_options_from_settings(settings)} "
+            f"--project-name {settings.DYNAMIC_SIDECAR_COMPOSE_NAMESPACE} --file - "
+            "start"
+        ),
         process_termination_timeout=None,
     )
     return result
@@ -158,12 +166,12 @@ async def docker_compose_restart(
     [SEE docker-compose](https://docs.docker.com/engine/reference/commandline/compose_restart/)
     """
     default_compose_restart_timeout = 10
-    # NOTE: TIMEOUT adjusted because of https://github.com/docker/compose/issues/3927, https://github.com/AzuraCast/AzuraCast/issues/3258
-    result: CommandResult = await _write_file_and_spawn_process(
+    result: CommandResult = await _compose_cli_command(
         compose_spec_yaml,
         command=(
-            f'export DOCKER_CLIENT_TIMEOUT=120 && export COMPOSE_HTTP_TIMEOUT=120 && docker compose {_docker_compose_options_from_settings(settings)} --project-name {settings.DYNAMIC_SIDECAR_COMPOSE_NAMESPACE} --file "{{file_path}}" restart'
-            f" --timeout {default_compose_restart_timeout}"
+            f"docker compose {_docker_compose_options_from_settings(settings)} "
+            f"--project-name {settings.DYNAMIC_SIDECAR_COMPOSE_NAMESPACE} --file - "
+            f"restart --timeout {default_compose_restart_timeout}"
         ),
         process_termination_timeout=_increase_timeout(default_compose_restart_timeout),
     )
@@ -183,12 +191,12 @@ async def docker_compose_down(
     [SEE docker-compose](https://docs.docker.com/engine/reference/commandline/compose_down/)
     """
     default_compose_down_timeout = 10
-    # NOTE: TIMEOUT adjusted because of https://github.com/docker/compose/issues/3927, https://github.com/AzuraCast/AzuraCast/issues/3258
-    result: CommandResult = await _write_file_and_spawn_process(
+    result: CommandResult = await _compose_cli_command(
         compose_spec_yaml,
         command=(
-            f'export DOCKER_CLIENT_TIMEOUT=120 && export COMPOSE_HTTP_TIMEOUT=120 && docker compose {_docker_compose_options_from_settings(settings)} --project-name {settings.DYNAMIC_SIDECAR_COMPOSE_NAMESPACE} --file "{{file_path}}" down'
-            f" --volumes --remove-orphans --timeout {default_compose_down_timeout}"
+            f"docker compose {_docker_compose_options_from_settings(settings)} "
+            f" --project-name {settings.DYNAMIC_SIDECAR_COMPOSE_NAMESPACE} --file - "
+            f"down --volumes --remove-orphans --timeout {default_compose_down_timeout}"
         ),
         process_termination_timeout=_increase_timeout(default_compose_down_timeout),
     )
@@ -206,12 +214,12 @@ async def docker_compose_rm(
 
     [SEE docker-compose](https://docs.docker.com/engine/reference/commandline/compose_rm)
     """
-    # NOTE: TIMEOUT adjusted because of https://github.com/docker/compose/issues/3927, https://github.com/AzuraCast/AzuraCast/issues/3258
-    result: CommandResult = await _write_file_and_spawn_process(
+    result: CommandResult = await _compose_cli_command(
         compose_spec_yaml,
         command=(
-            f'export DOCKER_CLIENT_TIMEOUT=120 && export COMPOSE_HTTP_TIMEOUT=120 && docker compose {_docker_compose_options_from_settings(settings)} --project-name {settings.DYNAMIC_SIDECAR_COMPOSE_NAMESPACE} --file "{{file_path}}" rm'
-            " --force -v"
+            f"docker compose {_docker_compose_options_from_settings(settings)}"
+            f" --project-name {settings.DYNAMIC_SIDECAR_COMPOSE_NAMESPACE} --file - "
+            "rm --force -v"
         ),
         process_termination_timeout=None,
     )

services/dynamic-sidecar/src/simcore_service_dynamic_sidecar/core/utils.py

@@ -4,18 +4,13 @@
 import logging
 import os
 import signal
-import tempfile
 import time
 from asyncio.subprocess import Process
-from collections.abc import AsyncIterator
-from contextlib import asynccontextmanager
 from pathlib import Path
 from typing import NamedTuple
 
-import aiofiles
 import httpx
 import psutil
-from aiofiles import os as aiofiles_os
 from servicelib.error_codes import create_error_code
 from settings_library.docker_registry import RegistrySettings
 from starlette import status
@@ -100,18 +95,6 @@ def create_docker_config_file(registry_settings: RegistrySettings) -> None:
         )
 
 
-@asynccontextmanager
-async def write_to_tmp_file(file_contents: str) -> AsyncIterator[Path]:
-    """Disposes of file on exit"""
-    file_path = Path(tempfile.mkdtemp()) / "file"
-    async with aiofiles.open(file_path, mode="w") as tmp_file:
-        await tmp_file.write(file_contents)
-    try:
-        yield file_path
-    finally:
-        await aiofiles_os.remove(file_path)
-
-
 def _close_transport(proc: Process):
     # Closes transport (initialized during 'await proc.communicate(...)' ) and avoids error:
     #
@@ -129,16 +112,28 @@ def _close_transport(proc: Process):
                 t.close()
 
 
-async def async_command(command: str, timeout: float | None = None) -> CommandResult:
+async def async_command(
+    command: str,
+    timeout: float | None = None,
+    pipe_as_input: str | None = None,
+    env_vars: dict[str, str] | None = None,
+) -> CommandResult:
     """
     Does not raise Exception
     """
     proc = await asyncio.create_subprocess_shell(
         command,
+        stdin=asyncio.subprocess.PIPE,
         stdout=asyncio.subprocess.PIPE,
         stderr=asyncio.subprocess.STDOUT,
-        # NOTE that stdout/stderr together. Might want to separate them?
+        env=env_vars,
     )
+
+    if pipe_as_input:
+        assert proc.stdin  # nosec
+        proc.stdin.write(pipe_as_input.encode())
+        proc.stdin.close()
+
     start = time.time()
 
     try: