feat(cubbix): add --no-shell in combination with --run to not drop a shell and exit when the command is done

This commit is contained in:
2025-04-30 09:46:28 -06:00
parent e852fdd1fb
commit 75daccb366
4 changed files with 186 additions and 22 deletions

View File

@@ -147,6 +147,7 @@ class ContainerManager:
networks: Optional[List[str]] = None,
mcp: Optional[List[str]] = None,
run_command: Optional[str] = None,
no_shell: bool = False,
uid: Optional[int] = None,
gid: Optional[int] = None,
model: Optional[str] = None,
@@ -164,10 +165,13 @@ class ContainerManager:
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
no_shell: Whether to close the container after run_command completes (requires run_command)
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
gid: Optional group ID for the container process
model: Optional model to use
provider: Optional provider to use
ssh: Whether to start the SSH server in the container (default: False)
"""
try:
@@ -470,7 +474,15 @@ class ContainerManager:
if run_command:
# Set environment variable for cubbi-init.sh to pick up
env_vars["CUBBI_RUN_COMMAND"] = run_command
# Set the container's command to be the final shell
# If no_shell is true, set CUBBI_NO_SHELL environment variable
if no_shell:
env_vars["CUBBI_NO_SHELL"] = "true"
logger.info(
"Setting CUBBI_NO_SHELL=true, container will exit after run command"
)
# Set the container's command to be the final shell (or exit if no_shell is true)
container_command = [target_shell]
logger.info(
f"Setting CUBBI_RUN_COMMAND and targeting shell {target_shell}"
@@ -818,8 +830,49 @@ class ContainerManager:
if session.id == session_id and session.container_id:
container = self.client.containers.get(session.container_id)
if follow:
for line in container.logs(stream=True, follow=True):
print(line.decode().strip())
# For streamed logs, we'll buffer by line to avoid character-by-character output
import io
from typing import Iterator
def process_log_stream(
stream: Iterator[bytes],
) -> Iterator[str]:
buffer = io.StringIO()
for chunk in stream:
chunk_str = chunk.decode("utf-8", errors="replace")
buffer.write(chunk_str)
# Process complete lines
while True:
line = buffer.getvalue()
newline_pos = line.find("\n")
if newline_pos == -1:
break
# Extract complete line and yield it
complete_line = line[:newline_pos].rstrip()
yield complete_line
# Update buffer to contain only the remaining content
new_buffer = io.StringIO()
new_buffer.write(line[newline_pos + 1 :])
buffer = new_buffer
# Don't forget to yield any remaining content at the end
final_content = buffer.getvalue().strip()
if final_content:
yield final_content
try:
# Process the log stream line by line
for line in process_log_stream(
container.logs(stream=True, follow=True)
):
print(line)
except KeyboardInterrupt:
# Handle Ctrl+C gracefully
print("\nStopped following logs.")
return None
else:
return container.logs().decode()
@@ -862,9 +915,52 @@ class ContainerManager:
f"Following initialization logs for session {session_id}..."
)
print("Press Ctrl+C to stop following")
container.exec_run(
"tail -f /init.log", stream=True, demux=True, tty=True
)
import io
def process_exec_stream(stream):
buffer = io.StringIO()
for chunk_type, chunk_bytes in stream:
if chunk_type != 1: # Skip stderr (type 2)
continue
chunk_str = chunk_bytes.decode(
"utf-8", errors="replace"
)
buffer.write(chunk_str)
# Process complete lines
while True:
line = buffer.getvalue()
newline_pos = line.find("\n")
if newline_pos == -1:
break
# Extract complete line and yield it
complete_line = line[:newline_pos].rstrip()
yield complete_line
# Update buffer to contain only the remaining content
new_buffer = io.StringIO()
new_buffer.write(line[newline_pos + 1 :])
buffer = new_buffer
# Don't forget to yield any remaining content at the end
final_content = buffer.getvalue().strip()
if final_content:
yield final_content
try:
exec_result = container.exec_run(
"tail -f /init.log", stream=True, demux=True
)
# Process the exec stream line by line
for line in process_exec_stream(exec_result[1]):
print(line)
except KeyboardInterrupt:
print("\nStopped following logs.")
return None
else:
exit_code, output = container.exec_run("cat /init.log")