MohamedAlaa

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname

shamil

How to mount a qcow2 disk image

This is a quick guide to mounting a qcow2 disk images on your host server. This is useful to reset passwords, edit files, or recover something without the virtual machine running.

Step 1 - Enable NBD on the Host

modprobe nbd max_part=8

bradrydzewski

#!/bin/bash
#
# Generates client and server certificates used to enable HTTPS
# remote authentication to a Docker daemon.
#
#     See http://docs.docker.com/articles/https/
#
# To start the Docker Daemon:
#
#     sudo docker -d                 \

michaelkirk

#!/bin/sh

#
# Too many crusty old git branches? Run this to find likely candidates for deletion
# It lists all the remote branches and sorts them by age.
# 
# Folks at pivotal shared this with me
#  
#$ . show-remote-branch-info.sh 
# 2012-05-04 09:42:29 -0700 4 minutes ago Ted & Bill \torigin/hey_Bill

acolyer

A collection of The Morning Paper posts relating to containers, operating systems etc.

In order of first appearance in The Morning Paper.

• On the duality of operating system structures
• Why threads are a bad idea
• Why events are a bad idea
• Unikernels: library operating systems for the cloud
• The scalable commutativity rule: designing scalable software for multicore processors
• Jitsu: just-in time summoning of unikernels

davewongillies

General OpenSSL Commands

These commands allow you to generate CSRs, Certificates, Private Keys and do other miscellaneous tasks.

Generate a new private key and Certificate Signing Request

openssl req -out CSR.csr -new -newkey rsa:2048 -nodes -keyout privateKey.key

BretFisher

Docker Cli Tips and Tricks

• bret@bretfisher.com
• https://twitter.com/BretFisher
• http://bretfisher.com

My favorite command line options and best practices

• Bash/zsh completion
• use Tab to populate command line, narrows down options as you go, fills in container names, ID's, images, volumes. Huge time saver.

golonzovsky

nexus-data:
  container_name: nexus-data
  image: sonatype/nexus:oss
  command: echo "data-only container for Nexus"

nexus:
  container_name: nexus
  image: sonatype/nexus:oss
  environment:
   - CONTEXT_PATH=/nexus

lxhunter

#!/bin/bash

export SEMVER_LAST_TAG=$(git describe --abbrev=0 --tags 2>/dev/null)
export SEMVER_RELEASE_LEVEL=$(git log --oneline -1 --pretty=%B | cat | tr -d '\n' | cut -d "[" -f2 | cut -d "]" -f1)

#curl -o /tmp/hub.tgz https://github.com/github/hub/releases/download/v2.2.9/hub-linux-arm64-2.2.9.tgz
#tar -xvzf /tmp/hub.tgz -C /tmp

if [ -z $SEMVER_LAST_TAG ]; then
    >&2 echo "No tags defined"

lucperkins

# Install doctl (DigitalOcean CLI tool)
brew install doctl

# Install kubectl
brew install kubernetes-cli

# Log into DigitalOcean
export DO_ACCESS_TOKEN=...
doctl auth login init --access-token ${DO_ACCESS_TOKEN}