guru-connect/session-logs/2025-12-29-session.md

GuruConnect Session Log - 2025-12-29

Session Summary

What Was Accomplished

1. Cleaned up stale persistent sessions - Deleted 12 offline machines from PostgreSQL database
2. Added machine deletion API with uninstall support - Implemented full machine management endpoints
3. Added AdminCommand protobuf message - For server-to-agent commands (uninstall, restart, update)
4. Implemented machine history export - Sessions and events can be exported before deletion

Key Decisions

• Machine deletion has two modes:
  • Delete Only (DELETE /api/machines/:agent_id) - Removes from DB, allows re-registration
  • Delete with Uninstall (DELETE /api/machines/:agent_id?uninstall=true) - Sends uninstall command to agent if online
• History export available via ?export=true query param or separate endpoint
• AdminCommand message types: ADMIN_UNINSTALL, ADMIN_RESTART, ADMIN_UPDATE

Problems Encountered

• Server endpoint returning 404 - new binary may not have been properly deployed
• Cross-compilation issues with ring crate for Windows MSVC on Linux

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Credentials

GuruConnect Database (PostgreSQL)

• Host: 172.16.3.30 (localhost from server)
• Database: guruconnect
• User: guruconnect
• Password: gc_a7f82d1e4b9c3f60
• DATABASE_URL: postgres://guruconnect:gc_a7f82d1e4b9c3f60@localhost:5432/guruconnect

Build Server SSH

• Host: 172.16.3.30
• User: guru
• Password: Gptf*77ttb123!@#-rmm
• Sudo Password: Gptf*77ttb123!@#-rmm

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Infrastructure

GuruConnect Server

• Host: 172.16.3.30
• Port: 3002
• Binary: /home/guru/guru-connect/target/release/guruconnect-server
• Service: guruconnect.service (systemd)
• Log: ~/gc-server.log

API Endpoints (NEW)

GET  /api/machines                    - List all persistent machines
GET  /api/machines/:agent_id          - Get machine info
GET  /api/machines/:agent_id/history  - Get full session/event history
DELETE /api/machines/:agent_id        - Delete machine
  Query params:
    ?uninstall=true  - Send uninstall command to agent
    ?export=true     - Include history in response

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Files Modified

Protobuf Schema

• proto/guruconnect.proto - Added AdminCommand message and AdminCommandType enum

Server Changes

• server/src/main.rs - Added machine API routes and handlers
• server/src/api/mod.rs - Added MachineInfo, MachineHistory, DeleteMachineParams types
• server/src/db/machines.rs - Existing delete_machine function used
• server/src/db/sessions.rs - Added get_sessions_for_machine()
• server/src/db/events.rs - Added get_events_for_machine()
• server/src/session/mod.rs - Added send_admin_command() and remove_agent() methods

Agent Changes

• agent/src/session/mod.rs - Added AdminCommand message handler
• agent/src/main.rs - Added ADMIN_UNINSTALL and ADMIN_RESTART error handlers

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Important Commands

Query/Delete Machines from PostgreSQL

# Query all machines
ssh guru@172.16.3.30 'PGPASSWORD=gc_a7f82d1e4b9c3f60 psql -h localhost -U guruconnect -d guruconnect -c "SELECT agent_id, hostname, status FROM connect_machines;"'

# Delete all offline machines
ssh guru@172.16.3.30 'PGPASSWORD=gc_a7f82d1e4b9c3f60 psql -h localhost -U guruconnect -d guruconnect -c "DELETE FROM connect_machines WHERE status = '\''offline'\'';"'

Build Server

# Build for Linux
ssh guru@172.16.3.30 'cd ~/guru-connect && source ~/.cargo/env && cargo build -p guruconnect-server --release --target x86_64-unknown-linux-gnu'

# Restart server
ssh guru@172.16.3.30 'pkill -f guruconnect-server; cd ~/guru-connect/server && DATABASE_URL="postgres://guruconnect:gc_a7f82d1e4b9c3f60@localhost:5432/guruconnect" nohup ~/guru-connect/target/release/guruconnect-server > ~/gc-server.log 2>&1 &'

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Pending Tasks

1. Debug 404 on /api/machines endpoint - The new routes aren't being recognized

   • May need to verify the correct binary is being executed
   • Check if old process is still running on port 3002

2. Test machine deletion flow end-to-end

   • Connect an agent
   • Delete with uninstall flag
   • Verify agent receives command and uninstalls

3. Build Windows agent binary - Cross-compilation needs MSVC tools or use Windows build

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Git Status

Committed and pushed:

commit dc7b742: Add machine deletion API with uninstall command support
- 8 files changed, 380 insertions(+), 6 deletions(-)

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Next Steps for Future Sessions

1. Investigate why /api/machines returns 404 - likely old binary running
2. Use systemd properly for server management (need root access)
3. Build and test Windows agent with uninstall command handling
4. Add dashboard UI for machine management (list, delete with options)