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tmux dtach

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Harivansh Rathi 2026-04-03 02:11:28 +00:00
parent 588d8b8d6a
commit 00be038cf3
1 changed files with 10 additions and 11 deletions
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21
hosts/netty/pi-agent.nix
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@ -11,19 +11,17 @@ let
piBin = "/home/${username}/.local/share/npm/bin/pi"; piBin = "/home/${username}/.local/share/npm/bin/pi";
# Wrapper that exec's pi inside tmux's foreground process so systemd # Wrapper that runs pi inside dtach so it gets a PTY (systemd services
# tracks the actual PID. When pi dies, tmux exits, systemd sees it # don't have a terminal) and can be attached to later for debugging:
# and triggers Restart=on-failure. # dtach -a /run/pi-agent/pi-agent.sock
piAgentStart = pkgs.writeShellScript "start-pi-agent" '' piAgentStart = pkgs.writeShellScript "start-pi-agent" ''
if [ ! -x "${piBin}" ]; then if [ ! -x "${piBin}" ]; then
echo "pi binary not found at ${piBin}" >&2 echo "pi binary not found at ${piBin}" >&2
exit 1 exit 1
fi fi
# tmux runs in the foreground (-D) so systemd tracks this process. exec ${pkgs.dtach}/bin/dtach -N /run/pi-agent/pi-agent.sock \
# The inner shell exec's pi so the tmux pane PID *is* the pi PID. ${piBin} --chat-bridge
exec ${pkgs.tmux}/bin/tmux new-session -D -s pi-agent \
"exec ${piBin} --chat-bridge"
''; '';
in in
{ {
@ -31,9 +29,10 @@ in
systemd.tmpfiles.rules = [ systemd.tmpfiles.rules = [
"d /var/lib/pi-agent 0750 ${username} users -" "d /var/lib/pi-agent 0750 ${username} users -"
"z ${piAgentEnvFile} 0600 ${username} users -" "z ${piAgentEnvFile} 0600 ${username} users -"
"d /run/pi-agent 0750 ${username} users -"
]; ];
# Pi agent running 24/7 in a foreground tmux session. # Pi agent running 24/7 inside dtach.
# Extensions (pi-channels, pi-schedule-prompt, pi-subagents) load # Extensions (pi-channels, pi-schedule-prompt, pi-subagents) load
# inside Pi's process and handle Telegram bridging, scheduled tasks, # inside Pi's process and handle Telegram bridging, scheduled tasks,
# and background subagent delegation. # and background subagent delegation.
@ -42,8 +41,8 @@ in
# Telegram bot token lives in ~/.pi/agent/settings.json (see pi-channels docs). # Telegram bot token lives in ~/.pi/agent/settings.json (see pi-channels docs).
# ANTHROPIC_API_KEY comes from the env file. # ANTHROPIC_API_KEY comes from the env file.
# #
# tmux session name: pi-agent # Attach for debugging: dtach -a /run/pi-agent/pi-agent.sock
# Attach for debugging: tmux attach -t pi-agent # Detach with: Ctrl+\
systemd.services.pi-agent = { systemd.services.pi-agent = {
description = "Pi Coding Agent (24/7)"; description = "Pi Coding Agent (24/7)";
after = [ "network-online.target" ]; after = [ "network-online.target" ];
@ -52,7 +51,7 @@ in
path = [ path = [
pkgs.nodejs_22 pkgs.nodejs_22
pkgs.git pkgs.git
pkgs.tmux pkgs.dtach
pkgs.coreutils pkgs.coreutils
]; ];
environment = { environment = {