tuannvm

#### first class expresssion
variable "ami" {}
resource "aws_instance" "example" {
  ami           = var.ami
}

#### list & map
resource "aws_instance" "example" {
  vpc_security_group_ids = var.security_group_id != "" ? [var.security_group_id] : []
}

troyfontaine

Methods of Signing Git Commits on MacOS

Last updated March 13, 2024

This Gist explains how to sign commits using gpg in a step-by-step fashion. Previously, krypt.co was heavily mentioned, but I've only recently learned they were acquired by Akamai and no longer update their previous free products. Those mentions have been removed.

Additionally, 1Password now supports signing Git commits with SSH keys and makes it pretty easy-plus you can easily configure Git Tower to use it for both signing and ssh.

For using a GUI-based GIT tool such as Tower or Github Desktop, follow the steps here for signing your commits with GPG.

kgmoore431

#!/bin/bash

user_name="$1"

echo "Removing user: ${user_name}"

echo "Deleting Access Keys:"
keys=("$(aws iam list-access-keys --user-name "${user_name}" | jq -r '.AccessKeyMetadata[] | .AccessKeyId')")
if [[ "${#keys}" -gt "0" ]]; then
    # shellcheck disable=SC2068

razielgn

# Original: http://blog.thelinuxkid.com/2013/06/automatically-start-tmux-on-ssh.html
# Saving for our children.

# This should always be run last either in .bashrc or as a script in .bashrc.d
if [[ -z "$TMUX" ]]; then
    tmux has-session &> /dev/null
    if [ $? -eq 1 ]; then
      exec tmux new
      exit
    else

phrfpeixoto

# Recently I had to send a password to someone over Skype. Since that's obviously not a good idea, I asked for 
# the person's public SSH RSA key, and used it to encrypt the password itself.


# Convert the public key into PEM format
ssh-keygen -f path/to/id_rsa.pub -e -m pem > ~/id_rsa.pub.pem

# Using the public pem file to encrypt a string
echo "sometext" | openssl rsautl -encrypt -pubin -inkey ~/id_rsa.pub.pem > ~/encrypted.txt

w0rd-driven

PASSWORD1                       # Replace literal string 'PASSWORD1' with '***REMOVED***' (default)
PASSWORD2==>examplePass         # replace with 'examplePass' instead
PASSWORD3==>                    # replace with the empty string
regex:password=\w+==>password=  # Replace, using a regex
regex:\r(\n)==>$1               # Replace Windows newlines with Unix newlines

rkuzsma

How to configure Bash Completion on Mac for Docker and Docker-Compose

Copied from the official Docker-for-mac documentation (thanks Brett for the updated doc pointer):

Install shell completion

Docker Desktop for Mac comes with scripts to enable completion for the docker, docker-machine, and docker-compose commands. The completion scripts may be found inside Docker.app, in the Contents/Resources/etc/ directory and can be installed both in Bash and Zsh.

Bash

Bash has built-in support for completion To activate completion for Docker commands, these files need to be copied or symlinked to your bash_completion.d/ directory. For example, if you installed bash via Homebrew:

sansumbrella

# find out how big the sparse-band-size is in a mounted volume
hdiutil info -verbose | grep band-size
# default Time Machine sparsbundle virtual-band-size = 16384 (8MB)
# create-sparsebundle's virtual-band-size = 262144 (128MB)

anpieber

<?xml version="1.0" encoding="UTF-8"?>
<!--

    Licensed to the Austrian Association for Software Tool Integration (AASTI)
    under one or more contributor license agreements. See the NOTICE file
    distributed with this work for additional information regarding copyright
    ownership. The AASTI licenses this file to you under the Apache License,
    Version 2.0 (the "License"); you may not use this file except in compliance
    with the License. You may obtain a copy of the License at

BrockA

/*--- waitForKeyElements():  A utility function, for Greasemonkey scripts,
    that detects and handles AJAXed content.

    Usage example:

        waitForKeyElements (
            "div.comments"
            , commentCallbackFunction
        );