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Helm introduction guide

Kubernetes package manager

Chart

➜ Render manifest of chart

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GNU Privacy Guard

GPG keychain

master key and subkeys

Key identities

key id vs key fingerprint why key is identified by last 8 digits of its finger print (and not first for instance?)

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This is a summary of actions that I use during development.

I aim two things

• navigate codebase with speed
• be agnostic in terms of progamming language and IDE

Environment

I use IntelliJ based IDEs with vim-plugin installed.

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Tools

• kafkacat
• kt
• kafka-client-sdk

Config

kafkacat

echo "bootstrap.servers=127.0.0.1:9092" > ~/.config/kafkacat.conf

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Install protobuf compiler

brew install protobuf

protoc compiler is responsible to generate language-specific stubs based on the protobuf schema.

Stubs are necessary to encode and decode data. Therefore, encoding always requires language runtime environment and protobuf schema. Stubs implement the Protobuf API to read messages and write messages.

To use the Protobuf API you need the language-specific library. For Python, this is protobuf library.

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Task

A task represents atomic piece of work.

Take away

build.gradle.kts is known as build script.

Lifecycle tasks

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Windows

MOD Ctrl-w

" move current window to far right
L
" move current window to far left
H
" move current window to very bottom

J

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My favorite GNU coreutils/bash commands

ls

• follow symlinks (file or directory)
  ls -L winhome/

tr

• translate, delete or squeeze characters
  tr [char1] [char2]

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ANSI Escape Sequences

Standard escape codes are prefixed with Escape:

• Ctrl-Key: ^[
• Octal: \033
• Unicode: \u001b
• Hexadecimal: \x1b
• Decimal: 27

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Complex workflows in git

Undoing git rm

$ git status
Changes to be committed:     
deleted:    file

Unstage file
$ git reset -- file