fix(cloudflared): use --bind-addr with port for code-server bind fix
Root cause: _ensure_web_bind_address injected --host 0.0.0.0 for code-server,
which only sets the bind host, not the port. code-server then listens on its
default port (8080) instead of the tool type's default_port (8443). Cloudflared
connects to port 8443 and gets connection refused, resulting in a 502.
Changes:
- _ensure_web_bind_address now accepts default_port and builds
--bind-addr 0.0.0.0:{port} for code-server
- Same fix for jupyter-notebook with explicit --port flag
- Existing broken --host commands are now detected and replaced
- New migration fixes tool_types templates and instance compose files on disk
- Test fixture updated to use correct --bind-addr 0.0.0.0:8443
This commit is contained in:
@@ -0,0 +1,148 @@
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"""Fix code-server bind address to include port
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Revision ID: 2026_05_29_fix_code_server_bind_addr_port
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Revises: 2026_05_29_remove_lsio_command_override
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Create Date: 2026-05-29 18:00:00.000000
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"""
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from typing import Sequence, Union
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from alembic import op
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import sqlalchemy as sa
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import yaml
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# revision identifiers, used by Alembic.
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revision: str = "2026_05_29_fix_code_server_bind_addr_port"
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down_revision: Union[str, None] = "2026_05_29_remove_lsio_command_override"
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branch_labels: Union[str, Sequence[str], None] = None
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depends_on: Union[str, Sequence[str], None] = None
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def _fix_tool_type_templates(conn) -> None:
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"""Fix code-server tool type templates with broken --host override."""
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result = conn.execute(
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sa.text("""
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SELECT id, compose_template, default_port
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FROM tool_types
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WHERE name = 'code-server'
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AND compose_template LIKE '%--host%'
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""")
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).fetchall()
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for tool_id, compose_template, default_port in result:
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port = default_port or 8443
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expected = f"--bind-addr 0.0.0.0:{port}"
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# Replace any line containing --host with the correct bind-addr
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lines = compose_template.split("\n")
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new_lines = []
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modified = False
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for line in lines:
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if "command:" in line and "--host" in line:
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indent = line[: len(line) - len(line.lstrip())]
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new_lines.append(f"{indent}command: {expected}")
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modified = True
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else:
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new_lines.append(line)
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if not modified:
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continue
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updated = "\n".join(new_lines)
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conn.execute(
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sa.text("""
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UPDATE tool_types
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SET compose_template = :compose_template
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WHERE id = :id
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"""),
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{"compose_template": updated, "id": tool_id},
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)
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print(f"Fixed code-server template ({tool_id}): replaced --host with {expected}")
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def _fix_instance_compose_files(conn) -> None:
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"""Fix existing instance compose files on disk with broken --host override."""
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from pathlib import Path
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# Use information_schema to check if compose_path column exists
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col_result = conn.execute(
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sa.text("""
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SELECT column_name
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FROM information_schema.columns
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WHERE table_name = 'tool_instances'
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AND column_name = 'compose_path'
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""")
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).fetchone()
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if not col_result:
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print("compose_path column not found, skipping instance file fixes")
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return
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result = conn.execute(
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sa.text("""
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SELECT id, compose_path, tool_type_id
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FROM tool_instances
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WHERE compose_path IS NOT NULL
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""")
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).fetchall()
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for instance_id, compose_path, tool_type_id in result:
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path = Path(compose_path)
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if not path.exists():
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continue
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try:
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content = path.read_text()
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except Exception:
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continue
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if "--host" not in content:
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continue
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# Get default_port from tool_type
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port_result = conn.execute(
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sa.text("""
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SELECT default_port FROM tool_types WHERE id = :id
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"""),
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{"id": tool_type_id},
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).fetchone()
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port = port_result[0] if port_result and port_result[0] else 8443
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expected = f"--bind-addr 0.0.0.0:{port}"
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try:
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data = yaml.safe_load(content)
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except Exception:
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continue
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if not data or "services" not in data:
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continue
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modified = False
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for svc in data["services"].values():
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if "command" in svc:
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cmd = svc["command"]
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if "--host" in cmd:
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svc["command"] = expected
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modified = True
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if not modified:
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continue
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try:
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path.write_text(yaml.dump(data, default_flow_style=False))
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print(
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f"Fixed code-server instance compose ({instance_id}): "
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f"replaced --host with {expected}"
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)
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except Exception as exc:
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print(f"Failed to fix instance {instance_id}: {exc}")
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def upgrade() -> None:
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conn = op.get_bind()
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_fix_tool_type_templates(conn)
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_fix_instance_compose_files(conn)
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def downgrade() -> None:
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pass
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