dekokun dekokun

## dekokun.md

      
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                dekokun
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              June 29, 2021 13:40
            
              
                これがdekokun(ISUCONメンバー自己紹介)
              
          
    ISUCON歴


2013年から毎年参加
2013, 2014は本選出場したがその後は一度も本選に行けず…レベル上がったなぁ…
去年は社内でメンバー集めてRustで出て予選敗退

ISUCON に Rust で参加して予選敗退 - でこてっくろぐ ねお


初対面のメンバーでチーム組むのは今回が初めて

所属


## jenkins_plugin_install.sh
#!/bin/bash

# PLUGINS=で始まってる行をコメントアウトしたり追加したりして、
# 好きなプラグインをインストールできるよ。
# まぁ、普通は、JenkinsのWeb UIから「プラグインの管理」でインストールすればいいと思う。
# 同じ環境を何個も作りたい場合はこのスクリプトをどうぞ。

PLUGINS=()

# Jenkin Build Pipeline Plugin

## test.go
package main

import (
	"fmt"
	"github.com/marcw/cachecontrol"
	"strings"
)

func main() {
	ccs := []string{"public", "max-age=315360000"}

## pcurl.sh
#!/bin/bash

# [nabeken/mikoi: mikoi is a HAProxy's proxy protocol enabler for command line tools.](https://github.com/nabeken/mikoi) のインストールが必要なので注意
# usage: curlの代わりにpcurlを使うだけで動くはずです

last_option=${@:$#}

# 最後のオプションを:で分割して最後のものからpathを取り除いたものがportっぽい
portlike=$(echo $last_option | awk -F":" '{print $NF }' | awk -F"/" '{print $1 }')
# 最後のオプションを:で分割して最初のものがschemeっぽい

## Bool.sh
is_first=true
if $is_first; then
  # do something
  is_first=false
fi

## LICENSE
Copyright (c) 2017 dekokun

MIT License

Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to

## README.md

      
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                dekokun
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              September 2, 2016 06:41
            
              
                Varnishのテストとかに使えるいい感じにオウム返しするサーバ
              
          
proxy的な働きをするサーバが後段に対してどのようなヘッダでリクエストを行うかを知りたい
後段のサーバからどのようなヘッダが返った際にproxy的な働きをするサーバはどのような動きをするかを知りたい

という調査が簡単になるために作った。
機能


リクエストのクエリストリングがHTTPヘッダになる

後段のサーバに任意のHTTPヘッダを返させてproxyの挙動を見ることができる


リクエストのHTTPヘッダはjsonになる


## client
[pid    62] 11:58:47.197343 rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 <0.000003>
[pid    62] 11:58:47.197384 mmap(NULL, 262144, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2f700c2000 <0.000005>
[pid    62] 11:58:47.197487 rt_sigprocmask(SIG_SETMASK, ~[RTMIN RT_1], [], 8) = 0 <0.000010>
[pid    62] 11:58:47.197868 mmap(NULL, 8392704, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f2f6e971000 <0.000008>
[pid    62] 11:58:47.197930 mprotect(0x7f2f6e971000, 4096, PROT_NONE) = 0 <0.000007>
[pid    62] 11:58:47.197973 clone(child_stack=0x7f2f6f170fb0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tidptr=0x7f2f6f1719d0, tls=0x7f2f6f171700, child_tidptr=0x7f2f6f1719d0) = 64 <0.000020>
[pid    62] 11:58:47.198337 rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 <0.000004>
[pid    62] 11:58:47.198376 futex(0x680688, FUTEX_WAIT, 0, NULLProcess 64 attached
 <unfinished ...>
[pid    64] 11:

## client
[pid    64] 11:51:55.425444 epoll_wait(4, {{EPOLLIN|EPOLLOUT|EPOLLERR|EPOLLHUP|EPOLLRDHUP, {u32=992570104, u64=139634674330360}}, {EPOLLIN|EPOLLOUT|EPOLLRDHUP, {u32=992569912, u64=139634674330168}}}, 128, 0) = 2 <0.000026>
[pid    64] 11:51:55.426580 getsockopt(18, SOL_SOCKET, SO_ERROR, [0], [4]) = 0 <0.000135>
[pid    64] 11:51:55.427115 getsockname(18, {sa_family=AF_INET, sin_port=htons(37902), sin_addr=inet_addr("127.0.0.1")}, [16]) = 0 <0.000006>
[pid    64] 11:51:55.427175 getpeername(18, {sa_family=AF_INET, sin_port=htons(8001), sin_addr=inet_addr("127.0.0.1")}, [16]) = 0 <0.000003>
[pid    64] 11:51:55.428044 setsockopt(18, SOL_TCP, TCP_NODELAY, [1], 4) = 0 <0.000092>
[pid    64] 11:51:55.428570 write(18, "HEAD / HTTP/1.0\r\n\r\n", 19) = 19 <0.000042>
[pid    64] 11:51:55.429533 read(18, "2016-06-15 11:51:55.420574555 +0"..., 512) = 48 <0.000008>
[pid    64] 11:51:55.430129 read(18, "", 1488) = 0 <0.000005>
[pid    64] 11:51:55.430187 write(2, "2016/06/15 11:51:55 main.go:66: "..., 812016/06/15 11:51:5

## goroutine
 <unfinished ...>
[pid    27] <... epoll_wait resumed> {{EPOLLIN, {u32=555602640, u64=140299957293776}}}, 128, -1) = 1
[pid    27] futex(0x661e50, FUTEX_WAKE, 1 <unfinished ...>
[pid    28] <... futex resumed> )       = 0
[pid    27] <... futex resumed> )       = 1
[pid    28] sched_yield( <unfinished ...>
[pid    27] accept4(3, {sa_family=AF_INET6, sin6_port=htons(49356), inet_pton(AF_INET6, "::ffff:127.0.0.1", &sin6_addr), sin6_flowinfo=0, sin6_scope_id=0}, [28], SOCK_CLOEXEC|SOCK_NONBLOCK) = 5
[pid    28] <... sched_yield resumed> ) = 0
[pid    27] epoll_ctl(4, EPOLL_CTL_ADD, 5, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=555602448, u64=140299957293584}} <unfinished ...>
[pid    28] futex(0x661d90, FUTEX_WAKE, 1 <unfinished ...>
	#!/bin/bash

	# PLUGINS=で始まってる行をコメントアウトしたり追加したりして、
	# 好きなプラグインをインストールできるよ。
	# まぁ、普通は、JenkinsのWeb UIから「プラグインの管理」でインストールすればいいと思う。
	# 同じ環境を何個も作りたい場合はこのスクリプトをどうぞ。

	PLUGINS=()

	# Jenkin Build Pipeline Plugin
	package main

	import (
	"fmt"
	"github.com/marcw/cachecontrol"
	"strings"
	)

	func main() {
	ccs := []string{"public", "max-age=315360000"}
	#!/bin/bash

	# [nabeken/mikoi: mikoi is a HAProxy's proxy protocol enabler for command line tools.](https://github.com/nabeken/mikoi) のインストールが必要なので注意
	# usage: curlの代わりにpcurlを使うだけで動くはずです

	last_option=${@:$#}

	# 最後のオプションを:で分割して最後のものからpathを取り除いたものがportっぽい
	portlike=$(echo $last_option \| awk -F":" '{print $NF }' \| awk -F"/" '{print $1 }')
	# 最後のオプションを:で分割して最初のものがschemeっぽい
	is_first=true
	if $is_first; then
	# do something
	is_first=false
	fi
	Copyright (c) 2017 dekokun

	MIT License

	Permission is hereby granted, free of charge, to any person obtaining
	a copy of this software and associated documentation files (the
	"Software"), to deal in the Software without restriction, including
	without limitation the rights to use, copy, modify, merge, publish,
	distribute, sublicense, and/or sell copies of the Software, and to
	permit persons to whom the Software is furnished to do so, subject to
	[pid 62] 11:58:47.197343 rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 <0.000003>
	[pid 62] 11:58:47.197384 mmap(NULL, 262144, PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, -1, 0) = 0x7f2f700c2000 <0.000005>
	[pid 62] 11:58:47.197487 rt_sigprocmask(SIG_SETMASK, ~[RTMIN RT_1], [], 8) = 0 <0.000010>
	[pid 62] 11:58:47.197868 mmap(NULL, 8392704, PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS\|MAP_STACK, -1, 0) = 0x7f2f6e971000 <0.000008>
	[pid 62] 11:58:47.197930 mprotect(0x7f2f6e971000, 4096, PROT_NONE) = 0 <0.000007>
	[pid 62] 11:58:47.197973 clone(child_stack=0x7f2f6f170fb0, flags=CLONE_VM\|CLONE_FS\|CLONE_FILES\|CLONE_SIGHAND\|CLONE_THREAD\|CLONE_SYSVSEM\|CLONE_SETTLS\|CLONE_PARENT_SETTID\|CLONE_CHILD_CLEARTID, parent_tidptr=0x7f2f6f1719d0, tls=0x7f2f6f171700, child_tidptr=0x7f2f6f1719d0) = 64 <0.000020>
	[pid 62] 11:58:47.198337 rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 <0.000004>
	[pid 62] 11:58:47.198376 futex(0x680688, FUTEX_WAIT, 0, NULLProcess 64 attached
	<unfinished ...>
	[pid 64] 11:
	[pid 64] 11:51:55.425444 epoll_wait(4, {{EPOLLIN\|EPOLLOUT\|EPOLLERR\|EPOLLHUP\|EPOLLRDHUP, {u32=992570104, u64=139634674330360}}, {EPOLLIN\|EPOLLOUT\|EPOLLRDHUP, {u32=992569912, u64=139634674330168}}}, 128, 0) = 2 <0.000026>
	[pid 64] 11:51:55.426580 getsockopt(18, SOL_SOCKET, SO_ERROR, [0], [4]) = 0 <0.000135>
	[pid 64] 11:51:55.427115 getsockname(18, {sa_family=AF_INET, sin_port=htons(37902), sin_addr=inet_addr("127.0.0.1")}, [16]) = 0 <0.000006>
	[pid 64] 11:51:55.427175 getpeername(18, {sa_family=AF_INET, sin_port=htons(8001), sin_addr=inet_addr("127.0.0.1")}, [16]) = 0 <0.000003>
	[pid 64] 11:51:55.428044 setsockopt(18, SOL_TCP, TCP_NODELAY, [1], 4) = 0 <0.000092>
	[pid 64] 11:51:55.428570 write(18, "HEAD / HTTP/1.0\r\n\r\n", 19) = 19 <0.000042>
	[pid 64] 11:51:55.429533 read(18, "2016-06-15 11:51:55.420574555 +0"..., 512) = 48 <0.000008>
	[pid 64] 11:51:55.430129 read(18, "", 1488) = 0 <0.000005>
	[pid 64] 11:51:55.430187 write(2, "2016/06/15 11:51:55 main.go:66: "..., 812016/06/15 11:51:5
	<unfinished ...>
	[pid 27] <... epoll_wait resumed> {{EPOLLIN, {u32=555602640, u64=140299957293776}}}, 128, -1) = 1
	[pid 27] futex(0x661e50, FUTEX_WAKE, 1 <unfinished ...>
	[pid 28] <... futex resumed> ) = 0
	[pid 27] <... futex resumed> ) = 1
	[pid 28] sched_yield( <unfinished ...>
	[pid 27] accept4(3, {sa_family=AF_INET6, sin6_port=htons(49356), inet_pton(AF_INET6, "::ffff:127.0.0.1", &sin6_addr), sin6_flowinfo=0, sin6_scope_id=0}, [28], SOCK_CLOEXEC\|SOCK_NONBLOCK) = 5
	[pid 28] <... sched_yield resumed> ) = 0
	[pid 27] epoll_ctl(4, EPOLL_CTL_ADD, 5, {EPOLLIN\|EPOLLOUT\|EPOLLRDHUP\|EPOLLET, {u32=555602448, u64=140299957293584}} <unfinished ...>
	[pid 28] futex(0x661d90, FUTEX_WAKE, 1 <unfinished ...>