chore(installer): harden install.sh for Podman macOS & ARM64

- auto-start Podman machine VM on macOS if not already running
- fix host‐gateway handling to avoid empty host-gateway errors
- add explicit platform overrides for ARM64 hosts
- switch health checks to in-container `exec` calls
- formatting nits

install.sh

@@ -26,12 +26,39 @@ else
   die "Docker or Podman is required. Install Docker: https://docs.docker.com/get-docker/ or Podman: https://podman.io/getting-started/installation"
 fi
 
+# Explicitly set the platform for the host architecture
+HOST_ARCH="$(uname -m)"
+if [ "$HOST_ARCH" = "arm64" ]; then
+  if [ "$ENGINE" = "docker" ]; then
+    PLATFORM_OPTS=( --platform linux/amd64 )
+  else
+    PLATFORM_OPTS=( --os linux --arch amd64 )
+  fi
+else
+  PLATFORM_OPTS=()
+fi
+
+# macOS + Podman: ensure VM is running before we try to launch containers
+if [ "$ENGINE" = "podman" ] && [ "$(uname -s)" = "Darwin" ]; then
+  if ! podman info &>/dev/null; then
+    log "⌛️ Initializing Podman VM…"
+    podman machine init -q &>/dev/null || true
+    podman machine start -q &>/dev/null || true
+
+    log "⌛️  Waiting for Podman API…"
+    until podman info &>/dev/null; do
+      sleep 1
+    done
+    log "✅  Podman VM is up"
+  fi
+fi
+
 # Clean up any leftovers from earlier runs
 for name in ollama-server llama-stack; do
   ids=$($ENGINE ps -aq --filter "name=^${name}$")
   if [ -n "$ids" ]; then
-    log "⚠️   Found existing container(s) for '${name}', removing..."
-    $ENGINE rm -f "$ids"
+    log "⚠️   Found existing container(s) for '${name}', removing…"
+    $ENGINE rm -f "$ids" > /dev/null 2>&1
   fi
 done
 
@@ -39,7 +66,8 @@ done
 # 1. Ollama
 ###############################################################################
 log "🦙  Starting Ollama…"
-$ENGINE run -d --name ollama-server \
+
+$ENGINE run -d "${PLATFORM_OPTS[@]}" --name ollama-server \
   -p "${OLLAMA_PORT}:11434" \
   ollama/ollama > /dev/null 2>&1
 
@@ -51,24 +79,29 @@ if ! timeout "$WAIT_TIMEOUT" bash -c \
   die "Ollama startup failed"
 fi
 
-log "📦  Ensuring model is pulled: ${MODEL_ALIAS}..."
+log "📦  Ensuring model is pulled: ${MODEL_ALIAS}…"
 $ENGINE exec ollama-server ollama pull "${MODEL_ALIAS}" > /dev/null 2>&1
 
 ###############################################################################
 # 2. Llama‑Stack
 ###############################################################################
+if [ "$ENGINE" = "docker" ]; then
+  NET_OPTS=( -p "${PORT}:${PORT}" --add-host="${HOST_DNS}:host-gateway" )
+elif [ "$ENGINE" = "podman" ]; then
+  NET_OPTS=( --network host )
+fi
+
+cmd=( run -d "${PLATFORM_OPTS[@]}" --name llama-stack "${NET_OPTS[@]}" \
+      "${SERVER_IMAGE}" --port "${PORT}" \
+      --env INFERENCE_MODEL="${MODEL_ALIAS}" \
+      --env OLLAMA_URL="http://${HOST_DNS}:${OLLAMA_PORT}" )
+
 log "🦙📦  Starting Llama‑Stack…"
-$ENGINE run -d --name llama-stack \
-  -p "${PORT}:${PORT}" \
-  --add-host="${HOST_DNS}:host-gateway" \
-  "${SERVER_IMAGE}" \
-  --port "${PORT}" \
-  --env INFERENCE_MODEL="${MODEL_ALIAS}" \
-  --env OLLAMA_URL="http://${HOST_DNS}:${OLLAMA_PORT}" > /dev/null 2>&1
+$ENGINE "${cmd[@]}" > /dev/null 2>&1
 
 log "⏳  Waiting for Llama-Stack API…"
 if ! timeout "$WAIT_TIMEOUT" bash -c \
-  "until curl -fsS http://localhost:${PORT}/v1/health 2>/dev/null | grep -q 'OK'; do sleep 1; done"; then
+  "until $ENGINE exec llama-stack curl -fsS http://127.0.0.1:${PORT}/v1/health 2>/dev/null | grep -q 'OK'; do printf '.'; sleep 1; done"; then
   log "❌  Llama-Stack did not become ready in ${WAIT_TIMEOUT}s; dumping container logs:"
   $ENGINE logs llama-stack --tail=200
   die "Llama-Stack startup failed"