如何从内部检测AWS EC2架构？

Question

假设我们正在运行实例，我们可以在该实例上运行什么来检测它是否x86_64是基于引力子的/ARM？

我想了想，curl -s http://169.254.169.254/latest/meta-data/...但发现在这种情况下没有什么用处。另外，可以使用实例类型（例如t4g.*vs t3.*）进行检测，但我希望有更直接的方法。

有没有？

Answer 1

快速简单的检查：uname -m

英特尔/AMD：

t3a.large:~ $ uname -m
x86_64

引力子/ARM：

t4g.large:~ $ uname -m
aarch64

显示更多详细信息：lscpu

以 AMD CPU 为例：

t3a.large:~ $ lscpu
Architecture:                    x86_64
CPU op-mode(s):                  32-bit, 64-bit
Byte Order:                      Little Endian
Address sizes:                   48 bits physical, 48 bits virtual
CPU(s):                          2
On-line CPU(s) list:             0,1
Thread(s) per core:              2
Core(s) per socket:              1
Socket(s):                       1
NUMA node(s):                    1
Vendor ID:                       AuthenticAMD
CPU family:                      23
Model name:                      AMD EPYC 7571
CPU MHz:                         2199.880
BogoMIPS:                        4399.76
Hypervisor vendor:               KVM
Virtualization type:             full
L1d cache:                       32 KiB
L1i cache:                       64 KiB
L2 cache:                        512 KiB
L3 cache:                        8 MiB
NUMA node0 CPU(s):               0,1
...

您还可以以 JSON 格式显示输出，以便于在脚本中使用（此处适用于 Graviton）：

t4g.large:~ $ lscpu -J
{
   "lscpu": [
      {"field":"Architecture:", "data":"aarch64"},
      {"field":"CPU op-mode(s):", "data":"32-bit, 64-bit"},
      {"field":"Byte Order:", "data":"Little Endian"},
      {"field":"CPU(s):", "data":"2"},
      {"field":"On-line CPU(s) list:", "data":"0,1"},
      {"field":"Thread(s) per core:", "data":"1"},
      {"field":"Core(s) per socket:", "data":"2"},
      {"field":"Vendor ID:", "data":"ARM"},
      {"field":"Model name:", "data":"Neoverse-N1"},
      ...
   ]
}

希望有帮助:)