chore: find builder ip workflow

.gitea/workflows/find-builder-ip.yml

@@ -0,0 +1,55 @@
+name: Find Builder IP & Check Gitea Logs
+
+on:
+  workflow_dispatch:
+
+jobs:
+  find-and-check:
+    runs-on: saas
+    steps:
+      - name: Find builder IP and check Gitea
+        shell: sh
+        run: |
+          set -eu
+
+          # 写入SSH密钥
+          mkdir -p ~/.ssh
+          cat > ~/.ssh/id_ed25519 << 'KEYEOF'
+-----BEGIN OPENSSH PRIVATE KEY-----
+b3BlbnNzaC1rZXktdjEAAAAABG5vbmUAAAAEbm9uZQAAAAAAAAABAAAAMwAAAAtzc2gtZW
+QyNTUxOQAAACD6GquAk5vBEfbtaJCTSfnQEhjzC8e5GF60hSbPP0BJbAAAAJiQxGNokMRj
+aAAAAAtzc2gtZWQyNTUxOQAAACD6GquAk5vBEfbtaJCTSfnQEhjzC8e5GF60hSbPP0BJbA
+AAAED2muzuU4BAiCqbg0ayGxgiDvfS/xI1SFvb32oLzTnn8/oaq4CTm8ER9u1okJNJ+dAS
+GPMLx7kYXrSFJs8/QElsAAAAFHJ1bm5lci1hZG1pbkB4aWFveGlhAQ==
+-----END OPENSSH PRIVATE KEY-----
+KEYEOF
+          chmod 600 ~/.ssh/id_ed25519
+          cat > ~/.ssh/config << 'CFGEOF'
+          Host *
+            StrictHostKeyChecking no
+            UserKnownHostsFile /dev/null
+          CFGEOF
+          chmod 600 ~/.ssh/config
+
+          echo "=== 1. 查看当前Runner所在服务器 ==="
+          hostname
+          ip addr show | grep inet | head -10
+
+          echo ""
+          echo "=== 2. 查找Gitea服务器内网IP ==="
+          # 从Gitea URL解析
+          nslookup git.xiaoxiajianji.com 2>/dev/null || dig git.xiaoxiajianji.com 2>/dev/null || echo "dns tools not available"
+          
+          # 试试常见的内网IP
+          for ip in 172.30.18.1 172.30.18.10 172.30.18.100 172.30.18.178 172.30.18.200; do
+            echo -n "  测试 $ip: "
+            timeout 2 bash -c "echo > /dev/tcp/$ip/22" 2>/dev/null && echo "22端口通" || echo "不通"
+          done
+
+          echo ""
+          echo "=== 3. 查看路由表 ==="
+          ip route 2>/dev/null || route -n 2>/dev/null || echo "no route command"
+          
+          echo ""
+          echo "=== 4. 查看ARP表 ==="
+          arp -an 2>/dev/null | head -10 || ip neigh 2>/dev/null | head -10 || echo "no arp"