Manage Alibaba Cloud Simple Application Server (SWAS OpenAPI 2020-06-01) resources end-to-end. Use for querying instances, starting/stopping/rebooting, executing commands (cloud assistant), managing disks/snapshots/images, firewall rules/templates, key pairs, tags, monitoring, and lightweight database operations.
Scanned 9/7/2026
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---
name: alicloud-compute-swas-open
description: Manage Alibaba Cloud Simple Application Server (SWAS OpenAPI 2020-06-01) resources end-to-end. Use for querying instances, starting/stopping/rebooting, executing commands (cloud assistant), managing disks/snapshots/images, firewall rules/templates, key pairs, tags, monitoring, and lightweight database operations.
---
Category: service
# 轻量应用服务器(SWAS-OPEN 2020-06-01)
使用 SWAS-OPEN OpenAPI 管控轻量应用服务器的全量资源:实例、磁盘、快照、镜像、密钥对、防火墙、命令助手、监控、标签、轻量数据库等。
## 前置要求
- 准备 AccessKey(建议 RAM 用户/角色最小权限)。
- 选择正确 Region 并使用对应接入点(公网/VPC)。`ALICLOUD_REGION_ID` 可作为默认 Region;未设置时可选择最合理 Region,无法判断则询问用户。
- 该产品 OpenAPI 为 RPC 签名风格,优先使用 Python SDK 或 OpenAPI Explorer,避免手写签名。
## SDK 优先级
1) Python SDK(优先)
2) OpenAPI Explorer
3) 其他 SDK
### Python SDK 快速查询(实例 ID / IP / 规格)
推荐使用虚拟环境(避免 PEP 668 的系统安装限制)。
```bash
python3 -m venv .venv
. .venv/bin/activate
python -m pip install alibabacloud_swas_open20200601 alibabacloud_tea_openapi alibabacloud_credentials
```
```python
import os
from alibabacloud_swas_open20200601.client import Client as SwasClient
from alibabacloud_swas_open20200601 import models as swas_models
from alibabacloud_tea_openapi import models as open_api_models
def create_client(region_id: str) -> SwasClient:
config = open_api_models.Config(
region_id=region_id,
endpoint=f"swas.{region_id}.aliyuncs.com",
)
ak = os.getenv("ALICLOUD_ACCESS_KEY_ID") or os.getenv("ALIBABA_CLOUD_ACCESS_KEY_ID")
sk = os.getenv("ALICLOUD_ACCESS_KEY_SECRET") or os.getenv("ALIBABA_CLOUD_ACCESS_KEY_SECRET")
if ak and sk:
config.access_key_id = ak
config.access_key_secret = sk
return SwasClient(config)
def list_regions():
client = create_client("cn-hangzhou")
resp = client.list_regions(swas_models.ListRegionsRequest())
return [r.region_id for r in resp.body.regions]
def list_instances(region_id: str):
client = create_client(region_id)
resp = client.list_instances(swas_models.ListInstancesRequest(region_id=region_id))
return resp.body.instances
def main():
for region_id in list_regions():
for inst in list_instances(region_id):
ip = getattr(inst, "public_ip_address", None) or getattr(inst, "inner_ip_address", None)
spec = getattr(inst, "plan_name", None) or getattr(inst, "plan_id", None)
print(inst.instance_id, ip or "-", spec or "-", region_id)
if __name__ == "__main__":
main()
```
### Python SDK scripts(推荐用于清单与统计)
- 全地域实例清单(TSV/JSON):`scripts/list_instances_all_regions.py`
- 按套餐统计实例数:`scripts/summary_instances_by_plan.py`
- 按状态统计实例数:`scripts/summary_instances_by_status.py`
- 修复 SSH 免密(支持自定义端口):`scripts/fix_ssh_access.py`
- 获取实例当前 SSH 端口:`scripts/get_ssh_port.py`
## CLI 注意事项
- `aliyun` CLI 可能没有 `swas-open` 作为产品名;优先使用 Python SDK。
如必须用 CLI,请先通过 OpenAPI Explorer 生成调用示例,再迁移到 CLI。
## 工作流
1) 明确资源类型与 Region(实例/磁盘/快照/镜像/防火墙/命令/数据库/标签)。
2) 在 `references/api_overview.md` 中确定 API 组与具体接口。
3) 选择调用方式(Python SDK / OpenAPI Explorer / 其他 SDK)。
4) 执行变更后,用查询接口校验状态或结果。
## 常见操作映射
- 实例查询/启动/停止/重启:`ListInstances`、`StartInstance(s)`、`StopInstance(s)`、`RebootInstance(s)`
- 执行命令:`RunCommand` 或 `CreateCommand` + `InvokeCommand`,结果用 `DescribeInvocations`/`DescribeInvocationResult`
- 防火墙:`ListFirewallRules`/`CreateFirewallRule(s)`/`ModifyFirewallRule`/`EnableFirewallRule`/`DisableFirewallRule`
- 快照/磁盘/镜像:`CreateSnapshot`、`ResetDisk`、`CreateCustomImage` 等
## 命令助手执行提示
- 目标实例必须为运行中(Running)。
- 需要安装云助手 Agent(可通过 `InstallCloudAssistant` 安装)。
- PowerShell 命令需确保 Windows 实例已配置 PowerShell 模块。
- 执行后用 `DescribeInvocations` 或 `DescribeInvocationResult` 取回结果与状态。
详见 `references/command-assistant.md`。
## 选择问题(不确定时提问)
1. 目标 Region 是什么?是否需要 VPC 接入点?
2. 目标实例 ID 列表是什么?实例当前状态是否为 Running?
3. 要执行的命令内容/脚本类型/超时时间?Linux 还是 Windows?
4. 是否需要批量操作或定时执行?
## Output Policy
若需保存结果或响应,写入:
`output/compute-swas-open/`
## References
- API 总览与接口分组:`references/api_overview.md`
- 接入点与集成方式:`references/endpoints.md`
- 命令助手要点:`references/command-assistant.md`
- 官方文档来源清单:`references/sources.md`
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