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sudo su

yum --enablerepo=extras install epel-release
yum -y install patch dkms kernel-devel perl
yum update

reboot

sudo su

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To Decrypt Jenkins Passwords

1. Go to the "Configure System" screen.
2. Right click on a password field, Inspect element, then change to "text" instead of "password".
3. Copy that field and then go to the Script Console. Paste the below into the field, replace with your encrypted password, and then hit "run".

encrypted_pw = '{your_encrypted_password_with_brackets_around_it}'
passwd = hudson.util.Secret.decrypt(encrypted_pw)
println(passwd)

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

###

# list & map
resource "aws_instance" "example" {

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jenkins.model.Jenkins.getInstance().getUpdateCenter().getSites().each { site ->
  site.updateDirectlyNow(hudson.model.DownloadService.signatureCheck)
}

hudson.model.DownloadService.Downloadable.all().each { downloadable ->
  downloadable.updateNow();
}

def plugins = jenkins.model.Jenkins.instance.pluginManager.activePlugins.findAll {
  it -> it.hasUpdate()

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packer build packer.json 2>&1 | sudo tee output.txt
tail -2 output.txt | head -2 | awk 'match($0, /ami-.*/) { print substr($0, RSTART, RLENGTH) }' > sudo ami.txt

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#!/bin/bash
# virtualenv-auto-activate.sh
# 
# Installation:
#   Add this line to your .bashrc or .bash-profile:
#
#       source /path/to/virtualenv-auto-activate.sh
#
#   Go to your project folder, run "virtualenv .venv", so your project folder
#   has a .venv folder at the top level, next to your version control directory.

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def parse_arn(arn):
    # http://docs.aws.amazon.com/general/latest/gr/aws-arns-and-namespaces.html
    elements = arn.split(':')
    result = {'arn': elements[0],
            'partition': elements[1],
            'service': elements[2],
            'region': elements[3],
            'account': elements[4]
           }
    if len(elements) == 7:

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A common and reliable pattern in service unit files is thus:

NoNewPrivileges=yes
PrivateTmp=yes
PrivateDevices=yes
DevicePolicy=closed
ProtectSystem=strict
ProtectHome=read-only
ProtectControlGroups=yes
ProtectKernelModules=yes

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#!/bin/bash

# Clone the Firing Range Repository
git clone https://github.com/google/firing-range.git

# Change to 'firing-range' directory
cd firing-range

# Download the AppEngine SDK
wget https://storage.googleapis.com/appengine-sdks/featured/appengine-java-sdk-1.9.23.zip

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#!/usr/bin/python3

# ldbdump - dumps LevelDB keys/values
#
# a LevelDB is a dir with files such a these:
# 000050.ldb  000100.log  CURRENT  LOCK  LOG  MANIFEST-000099
#
# sources: https://github.com/tos-kamiya/levelobjdb dump()

import os