feat(run): add --run command

This commit is contained in:
2025-04-01 09:48:55 -06:00
parent a51115a45d
commit 33d90d0531
4 changed files with 106 additions and 28 deletions

View File

@@ -143,6 +143,11 @@ def create_session(
[], "--network", "-N", help="Connect to additional Docker networks"
),
name: Optional[str] = typer.Option(None, "--name", "-n", help="Session name"),
run_command: Optional[str] = typer.Option(
None,
"--run",
help="Command to execute inside the container before starting the shell",
),
no_connect: bool = typer.Option(
False, "--no-connect", help="Don't automatically connect to the session"
),
@@ -259,6 +264,7 @@ def create_session(
volumes=volume_mounts,
networks=all_networks,
mcp=all_mcps,
run_command=run_command,
uid=target_uid,
gid=target_gid,
)
@@ -275,12 +281,22 @@ def create_session(
# Auto-connect based on user config, unless overridden by --no-connect flag
auto_connect = user_config.get("defaults.connect", True)
if not no_connect and auto_connect:
# Connect if auto_connect is enabled and --no-connect wasn't used.
# The --run command no longer prevents connection.
should_connect = not no_connect and auto_connect
if should_connect:
container_manager.connect_session(session.id)
else:
console.print(
f"\nConnect to the session with:\n mc session connect {session.id}"
)
# Explain why connection was skipped
if no_connect:
console.print("\nConnection skipped due to --no-connect.")
console.print(
f"Connect manually with:\n mc session connect {session.id}"
)
elif not auto_connect:
console.print(
f"\nAuto-connect disabled. Connect with:\n mc session connect {session.id}"
)
else:
console.print("[red]Failed to create session[/red]")

View File

@@ -145,6 +145,7 @@ class ContainerManager:
volumes: Optional[Dict[str, Dict[str, str]]] = None,
networks: Optional[List[str]] = None,
mcp: Optional[List[str]] = None,
run_command: Optional[str] = None,
uid: Optional[int] = None,
gid: Optional[int] = None,
) -> Optional[Session]:
@@ -157,6 +158,7 @@ class ContainerManager:
session_name: Optional session name
mount_local: Whether to mount the specified local directory to /app (ignored if project is None)
volumes: Optional additional volumes to mount (dict of {host_path: {"bind": container_path, "mode": mode}})
run_command: Optional command to execute before starting the shell
networks: Optional list of additional Docker networks to connect to
mcp: Optional list of MCP server names to attach to the session
uid: Optional user ID for the container process
@@ -412,12 +414,51 @@ class ContainerManager:
env_vars["MCP_NAMES"] = json.dumps(mcp_names)
# Add user-specified networks
# Default MC network
default_network = self.config_manager.config.docker.get(
"network", "mc-network"
)
# Get network list, ensuring default is first and no duplicates
network_list_set = {default_network}
if networks:
network_list_set.update(networks)
network_list = (
[default_network] + [n for n in networks if n != default_network]
if networks
else [default_network]
)
if networks:
for network in networks:
if network not in network_list:
# This check is slightly redundant now but harmless
network_list.append(network)
print(f"Adding network {network} to session")
# Determine container command and entrypoint
container_command = None
entrypoint = None # Keep this initially None to mean "use Dockerfile default unless overridden"
target_shell = "/bin/bash" # Default final shell
if run_command:
# Set environment variable for mc-init.sh to pick up
env_vars["MC_RUN_COMMAND"] = run_command
# Set the container's command to be the final shell
container_command = [target_shell]
logger.info(
f"Setting MC_RUN_COMMAND and targeting shell {target_shell}"
)
else:
# Use default behavior (often defined by image's ENTRYPOINT/CMD)
# Set the container's command to be the final shell if none specified by Dockerfile CMD
# Note: Dockerfile CMD is ["tail", "-f", "/dev/null"], so this might need adjustment
# if we want interactive shell by default without --run. Let's default to bash for now.
container_command = [target_shell]
logger.info(
"Using default container entrypoint/command for interactive shell."
)
# Create container
container = self.client.containers.create(
image=driver.image,
@@ -437,6 +478,8 @@ class ContainerManager:
"mc.mcps": ",".join(mcp_names) if mcp_names else "",
},
network=network_list[0], # Connect to the first network initially
command=container_command, # Set the command
entrypoint=entrypoint, # Set the entrypoint (might be None)
ports={f"{port}/tcp": None for port in driver.ports},
)
@@ -544,16 +587,15 @@ class ContainerManager:
created_at=container.attrs["Created"],
ports=ports,
mcps=mcp_names,
# Assuming Session model has uid and gid fields
run_command=run_command, # Store the command
uid=uid,
gid=gid,
)
# Save session to the session manager as JSON-compatible dict
# Save session to the session manager
# Assuming Session model has uid and gid fields added to its definition
session_data_to_save = session.model_dump(mode="json")
session_data_to_save["uid"] = uid
session_data_to_save["gid"] = gid
# uid and gid are already part of the model dump now
self.session_manager.add_session(session_id, session_data_to_save)
return session
@@ -591,10 +633,8 @@ class ContainerManager:
print(f"Session '{session_id}' not found via Docker either.")
return False
container_id = session_obj.container_id
# Cannot determine user if session data is missing
user_spec = None
print(
f"[yellow]Warning: Session data missing for {session_id}. Connecting as default container user.[/yellow]"
f"[yellow]Warning: Session data missing for {session_id}. Attaching as default container user.[/yellow]"
)
else:
container_id = session_data.get("container_id")
@@ -619,23 +659,18 @@ class ContainerManager:
print(f"Error checking container status for session {session_id}: {e}")
return False
# Determine user spec from stored session data
uid = session_data.get("uid")
gid = session_data.get("gid")
user_spec = f"{uid}:{gid}" if uid is not None and gid is not None else None
try:
# Execute interactive shell in container
cmd = ["docker", "exec", "-it"]
if user_spec:
cmd.extend(["--user", user_spec])
print(f"Connecting as user {user_spec}...")
else:
print("Connecting as default container user...")
# Attach to the container's main process TTY
# This allows seeing the output of --run command followed by the shell
# The user context (UID/GID) is determined when the container is created,
# attach respects that context.
print(
f"Attaching to session {session_id} (container: {container_id[:12]})..."
)
print("Type 'exit' or Ctrl+P, Ctrl+Q (by default) to detach.")
cmd = ["docker", "attach", container_id]
cmd.extend([container_id, "/bin/bash"])
# Use execvp to replace the current process with docker exec
# Use execvp to replace the current process with docker attach
# This provides a more seamless shell experience
os.execvp("docker", cmd)
# execvp does not return if successful

View File

@@ -118,5 +118,29 @@ echo "MC driver initialization complete"
echo "=== MC Initialization completed at $(date) ==="
echo "INIT_COMPLETE=true" > /init.status
# Switch to the non-root user and execute the container's CMD
exec gosu mcuser "$@"
# Run the user command first, if set, as mcuser
if [ -n "$MC_RUN_COMMAND" ]; then
echo '--- Executing initial command: $MC_RUN_COMMAND ---';
gosu mcuser sh -c "$MC_RUN_COMMAND"; # Run user command as mcuser
COMMAND_EXIT_CODE=$?;
echo "--- Initial command finished (exit code: $COMMAND_EXIT_CODE) ---";
fi;
# Determine the final command (the interactive shell)
FINAL_CMD=("$@")
if [ ${#FINAL_CMD[@]} -eq 0 ]; then
# Default to /bin/bash if CMD wasn't passed or was empty
FINAL_CMD=("/bin/bash")
fi
# If the final command is bash, ensure it runs interactively
# Check if the first argument is /bin/bash and -i is not already present
if [ "${FINAL_CMD[0]}" = "/bin/bash" ] && [[ ! " ${FINAL_CMD[@]} " =~ " -i " ]]; then
# Add the -i flag to the command array
FINAL_CMD+=("-i")
fi
echo "--- Starting interactive shell (${FINAL_CMD[*]}) ---";
# Now exec gosu directly into the final command, replacing this script process
# "${FINAL_CMD[@]}" ensures arguments are passed correctly (e.g., /bin/bash -i)
exec gosu mcuser "${FINAL_CMD[@]}"

View File

@@ -105,6 +105,9 @@ class Session(BaseModel):
created_at: str
ports: Dict[int, int] = Field(default_factory=dict)
mcps: List[str] = Field(default_factory=list) # List of MCP server names
run_command: Optional[str] = None # Command executed on start
uid: Optional[int] = None # Store UID used
gid: Optional[int] = None # Store GID used
class Config(BaseModel):