Commit c8b91bc

@@ -4,13 +4,17 @@ import (
 	"dnsense/dns"
 	"dnsense/handlers"
 	"log"
+	"os"
 )
 
 func main() {
-	server := dns.NewServer("0.0.0.0:8053", func(req *dns.Message) *dns.Message {
+	port := os.Getenv("DNS_PORT")
+	if port == "" {
+		port = "8053"
+	}
+	server := dns.NewServer("0.0.0.0:"+port, func(req *dns.Message) *dns.Message {
 		return handlers.Route(req)
 	})
 
-	log.Println("dns running on :8053")
 	log.Fatal(server.Start())
 }

@@ -0,0 +1,88 @@
+#!/bin/bash
+set -e
+
+# ── setup ────────────────────────────────────────────────────
+RED='\033[0;31m'
+GREEN='\033[0;32m'
+YELLOW='\033[1;33m'
+BLUE='\033[0;34m'
+NC='\033[0m'
+
+cleanline() { printf '\033[1A\033[2K\r'; }
+ok()   { echo -e "${GREEN}✓${NC} $1"; }
+info() { echo -e "${BLUE}→${NC} $1"; sleep 0.5 ; cleanline; }
+warn() { echo -e "${YELLOW}⚠${NC} $1"; }
+fail() { echo -e "${RED}✗${NC} $1"; exit 1; }
+
+echo ""
+echo -e "${GREEN}initiating dnsense..."
+echo ""
+# ──────────────────────────────────────────────────────
+
+info "checking go..."
+if ! command -v go &> /dev/null; then
+    fail "go not found. install from https://go.dev/dl"
+fi
+GO_VERSION=$(go version | awk '{print $3}' | sed 's/go//')
+REQUIRED="1.25"
+if [ "$(printf '%s\n' "$REQUIRED" "$GO_VERSION" | sort -V | head -n1)" != "$REQUIRED" ]; then
+    fail "go $REQUIRED+ required, found $GO_VERSION"
+fi 
+
+ok "go $GO_VERSION"
+
+info "checking ollama..."
+if ! command -v ollama &> /dev/null; then
+    warn "ollama not found. installing..."
+    curl -fsSL https://ollama.com/install.sh | sh
+    ok "ollama installed"
+fi
+
+if ! curl -sf http://localhost:11434/api/tags > /dev/null 2>&1; then
+    warn "ollama not running."
+		info "starting ollama service..."
+    ollama serve > /tmp/ollama.log 2>&1 &
+    OLLAMA_PID=$!
+    echo $OLLAMA_PID > /tmp/ollama.pid
+
+    ATTEMPTS=0
+    until curl -sf http://localhost:11434/api/tags > /dev/null 2>&1; do
+        sleep 1
+        ATTEMPTS=$((ATTEMPTS + 1))
+        if [ $ATTEMPTS -ge 30 ]; then
+            fail "ollama failed to start. check /tmp/ollama.log"
+        fi
+    done
+    ok "ollama started (pid $OLLAMA_PID)"
+else
+    ok "ollama already running"
+fi
+
+MODEL="llama3-chatqa:8b"
+info "checking model $MODEL..."
+if ! ollama list 2>/dev/null | grep -q "llama3-chatqa"; then
+    warn "model not found. pulling $MODEL (~5GB, once only)..."
+    ollama pull $MODEL
+    ok "model $MODEL ready"
+else
+    ok "model $MODEL is present"
+fi
+
+info "building dnsense..."
+if ! go build -ldflags="-s -w" -trimpath -o dnsense .; then
+    fail "build failed"
+fi
+ok "dnsense build successful ($(du -sh dnsense | cut -f1) binary)"
+
+PORT=${DNS_PORT:-8053}
+info "checking port $PORT..."
+if lsof -i UDP:$PORT > /dev/null 2>&1; then
+    fail "port $PORT already in use. set DNS_PORT=<other> to override"
+fi
+ok "port $PORT is free"
+
+echo ""
+echo -e "${GREEN}checks passed. launching dnsense${NC}"
+echo ""
+
+DNS_PORT=$PORT exec ./dnsense