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The Production Engineer’s Study Guide

A Synthesis on Performance, Data, and Distributed Systems.

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📘 FAIR USE NOTICE

This document is intended for educational and research purposes only. It contains a structured study outline and technical review of foundational systems and infrastructure concepts that are publicly documented and broadly relevant to practitioners in DevOps, SRE, and systems engineering roles.

It does not contain any proprietary information, internal tools, or confidential interview questions or processes from any specific employer. All materials herein are based on publicly available sources, common industry practices, and original synthesis for peer learning.

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#!/bin/zsh
# Example: in $dir git status
(source ~/.zshrc; cd $1; ${@:2})

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const (
	DatabaseConfigFile = "database.json"
	DatabaseDriver     = "mysql"
	DatabaseKey        = "db"
)

type DatabaseConfig struct {
	Driver struct {
		Database string `json:"dbname"`
		Host     string `json:"host"`

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import (
	"encoding/json"
)

// Given an input slice of bytes representing an arbitrary JSON object and a slice of strings containing keys
// which should not exist in the input JSON object, remove these keys from original object.
func removeKeysFromJSONObject(input *map[string]json.RawMessage, keys []string) {
	for _, key := range keys {
		delete(*input, key)
	}

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from itertools import islice, zip_longest

def yield_subgroups(group, subgroup_test):
    subgroup = []

    for i, j in zip_longest(group, islice(group, 1, None)):
        if subgroup_test(i, j):
            yield subgroup
            subgroup = []
        else:

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func! DeleteTrailingWS()
  exe "normal mz"
  %s/\s\+$//ge
  exe "normal `z"
endfunc
for suffix in ["py", "js", "css", "cpp", "c", "h", "hpp", "rs", "groovy", "groovy.j2"]
    execute 'autocmd BufWrite *.'.suffix.' :call DeleteTrailingWS()'
endfor
for prefix in ["Jenkinsfile"]
    execute 'autocmd BufWrite '.prefix.'* :call DeleteTrailingWS()'

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https://intellij-support.jetbrains.com/hc/en-us/community/posts/115000556284/comments/360000146344

Specify the absolute path to `node_modules/@vue/cli-service/webpack.config.js` as a webpack config under `Languages & Frameworks / Javascript / Webpack`.

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#!/bin/bash


SPECTACLE_VERSION="1.2"
RDM_VERSION="2.2"

install_brew=false
install_utils=true
install_dev_tools=true
install_webdev_tools=true

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# vim-grep, open all files containing grepped string
function vim-grep {
    GREP_OPTIONS="-rnw $1 -e $2"

    for var in "${@:3}";
    do
        GREP_OPTIONS+=" --include \"$var\""
    done

    vim $(eval "grep $GREP_OPTIONS" | cut -f1 -d: | uniq | tr "\n" " ")

seanpianka

bind J resize-pane -D 5
bind K resize-pane -U 5
bind H resize-pane -L 5
bind L resize-pane -R 5

bind M-j resize-pane -D
bind M-k resize-pane -U
bind M-h resize-pane -L
bind M-l resize-pane -R