thezawzaw

Automating TLS/SSL Cert Management with Cert-Manager on Kubernetes

This page describes how to setup Cert-manager and generate TLS/SSL certificates automatically using Cert-manager on Kubernetes.

Prerequisites

• Kubernetes
• Helm Package Manager Tool

Installation

alonsoir

---
- name: Ejecutar Proceso con VAULT_TOKEN
  hosts: localhost  # Puedes ajustar los hosts según tu entorno
  gather_facts: false  # Desactivar recopilación de hechos

  vars:
    vault_address: "http://direccion-de-tu-vault:8200"  # Ajusta la dirección de tu Vault Server

  tasks:
    - name: Establecer VAULT_TOKEN como variable de entorno

adamw

// TestMacro.scala

import scala.quoted.*

object TestMacro {
  inline def name[E](e: E): String = ${ nameImpl[E]('e) }

  def nameImpl[E: Type](e: Expr[E])(using Quotes): Expr[String] = {
    import quotes.reflect.*

royki

➜ ~ sudo fdisk /dev/sda

Welcome to fdisk (util-linux 2.34).
Changes will remain in memory only, until you decide to write them.
Be careful before using the write command.


Command (m for help): p
Disk /dev/sda: 24.42 GiB, 26214400000 bytes, 51200000 sectors

royki

# Send prefix
set-option -g prefix C-a
unbind-key C-a
bind-key C-a send-prefix

# Use Alt-arrow keys to switch panes
bind -n M-Left select-pane -L
bind -n M-Right select-pane -R
bind -n M-Up select-pane -U
bind -n M-Down select-pane -D

royki

• gitlab omnibus
• gitlab backup
• gitlab create backup
• gitlab restor
• gitlab-raketask
• gitlab-rake ldap
• gitlab-rake maintenance
• gitlab-rake check
• omnibus - maintenance
• Results of GitLab environment info

royki

Button Layout

===================

• Gnome/Unity/gdm
  • Left -> gsettings set org.gnome.desktop.wm.preferences button-layout 'close,maximize,minimize:'
  • Right -> gsettings set org.gnome.desktop.wm.preferences button-layout ':close,maximize,minimize'
  • gsettings set org.gnome.desktop.wm.preferences button-layout ':minimize,maximize,close'

Minimize OnClick Settings

==============================

• gsettings set org.gnome.shell.extensions.dash-to-dock click-action 'minimize'

royki

To copy using scp and no password

• create a folder of own user and become the owner of that folder by chown: folder_name

copy over ssh using scp

• scp gitlabhq_stag.backup [email protected]:/gitlab-data/dump

Copy a Local File to a Remote System with the scp Command

• scp file.txt [email protected]:/remote/directory
• If SSH on the remote host is listening on a port other than the default 22 then you can specify the port using the -P argument:
  • scp -P 2322 file.txt [email protected]:/remote/directory

royki

Add user to group and make sudoer/nopassword-access

Ubuntu

• adduser username
• usermod -aG groupname username or gpasswd -a user_name group_name
  • usermod -aG sudo username
• visudo
  • username ALL=(ALL) NOPASSWD:ALL
• Remove a user from a group

royki

object Solution {
    def solution(N: Int): Int = {
      if (N < 1) sys.error(s"Invalid input: $N")

      @scala.annotation.tailrec
      def foo(i: Int, total: Int): (Int, Int) = {
        if ((i * i) >= N) (total, i)
        else if (N % i == 0) foo(i + 1, total + 2)
        else foo(i + 1, total)
      }