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curl の無い container (alpine) 内から POST リクエストを送る方法 / Fire POST request without curl

Posted at 2021-04-15

https://www.reddit.com/r/bash/comments/2vt3p1/make_a_post_request_without_curl/coksadc/ ここにあった。

netcat (nc) を使えば良い？

（他のやり方もありそうとはいえ）

以下は GET の場合だが。

% docker run -it alpine:3.9.4 sh -c 'echo -e "GET / HTTP/1.0\nHost: example.com\n\n" | nc example.com 80'

HTTP/1.0 200 OK
Accept-Ranges: bytes
Age: 556620
Cache-Control: max-age=604800
Content-Type: text/html; charset=UTF-8
Date: Thu, 15 Apr 2021 00:23:33 GMT
Etag: "3147526947"
Expires: Thu, 22 Apr 2021 00:23:33 GMT
Last-Modified: Thu, 17 Oct 2019 07:18:26 GMT
Server: ECS (sjc/4E76)
Vary: Accept-Encoding
X-Cache: HIT
Content-Length: 1256
Connection: close

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