feat: phase 1

Dockerfile

@@ -1,3 +1,15 @@
+FROM --platform=$BUILDPLATFORM golang:1.26.1 AS guestd-builder
+
+ARG TARGETOS
+ARG TARGETARCH
+
+WORKDIR /src
+
+COPY go.mod go.sum ./
+COPY packages/guestd ./packages/guestd
+
+RUN CGO_ENABLED=0 GOOS=${TARGETOS:-linux} GOARCH=${TARGETARCH:-amd64} go build -o /out/microagent-guestd ./packages/guestd/cmd/guestd
+
 FROM public.ecr.aws/docker/library/ubuntu:24.04
 
 SHELL ["/bin/bash", "-o", "pipefail", "-c"]
@@ -133,6 +145,7 @@ COPY microagent-init.sh /usr/local/bin/microagent-init
 COPY microagent-desktop-session.sh /usr/local/bin/microagent-desktop-session
 COPY microagent-network-up.sh /usr/local/bin/microagent-network-up
 COPY microagent-ready-agent.py /usr/local/bin/microagent-ready-agent
+COPY --from=guestd-builder /out/microagent-guestd /usr/local/bin/microagent-guestd
 COPY defaults/.zshrc /home/node/.zshrc
 COPY defaults/.bashrc /home/node/.bashrc
 COPY defaults/.profile /home/node/.profile
@@ -141,7 +154,7 @@ COPY defaults/AGENTS.md /home/node/AGENTS.md
 COPY terminfo/xterm-ghostty.terminfo /tmp/xterm-ghostty.terminfo
 COPY terminfo/xterm-kitty.terminfo /tmp/xterm-kitty.terminfo
 
-RUN chmod 755 /usr/local/bin/microagent-init /usr/local/bin/microagent-desktop-session /usr/local/bin/microagent-network-up /usr/local/bin/microagent-ready-agent \
+RUN chmod 755 /usr/local/bin/microagent-init /usr/local/bin/microagent-desktop-session /usr/local/bin/microagent-network-up /usr/local/bin/microagent-ready-agent /usr/local/bin/microagent-guestd \
   && chmod 755 /opt/desktop/scripts/apply-desktop-profile.sh \
   && chown node:node /home/node/.zshrc /home/node/.bashrc /home/node/.profile /home/node/AGENTS.md \
   && ln -sf /home/node/AGENTS.md /home/node/CLAUDE.md \

microagent-init.sh

@@ -38,6 +38,7 @@ cleanup() {
   [ -n "${ready_agent_pid:-}" ] && kill "$ready_agent_pid" >/dev/null 2>&1 || true
   [ -n "${sshd_pid:-}" ] && kill "$sshd_pid" >/dev/null 2>&1 || true
   [ -n "${desktop_pid:-}" ] && kill "$desktop_pid" >/dev/null 2>&1 || true
+  [ -n "${guestd_pid:-}" ] && kill "$guestd_pid" >/dev/null 2>&1 || true
   wait >/dev/null 2>&1 || true
   exit 0
 }
@@ -75,6 +76,13 @@ start_desktop() {
   desktop_pid=$!
 }
 
+start_guestd() {
+  reap_if_needed "${guestd_pid:-}"
+  log "starting guestd on 49983"
+  /usr/local/bin/microagent-guestd >>/var/log/guestd.log 2>&1 &
+  guestd_pid=$!
+}
+
 trap cleanup INT TERM
 
 log "bringing up guest network"
@@ -125,6 +133,7 @@ fi
 start_ready_agent
 start_sshd
 start_desktop
+start_guestd
 
 while true; do
   if ! pid_running "${ready_agent_pid:-}"; then
@@ -139,5 +148,9 @@ while true; do
     log "desktop session exited; restarting"
     start_desktop
   fi
+  if ! pid_running "${guestd_pid:-}"; then
+    log "guestd exited; restarting"
+    start_guestd
+  fi
   sleep 1
 done