tuxfight3r

#####################################
# Namespace: Spinnaker
#####################################
resource "kubernetes_namespace" "spinnaker" {
  metadata {
    name = "spinnaker"
  }
}

#####################################

tuxfight3r

My Openshift Cheatsheet

Examine the cluster quota defined for the environment:

$ oc describe AppliedClusterResourceQuota

Install pkgs using yum in a Dockerfile

tuxfight3r

#!/bin/bash

PUBLIC_IP4_IFACE=eth2
LISTEN_IFACE=${PUBLIC_IP4_IFACE}

listen_address=$(ip -f inet addr show dev ${LISTEN_IFACE} | grep -Po 'inet \K[\d.]+')
listen_port=${1}
target_host=${2}
target_port=${3}

tuxfight3r

README

Services declared as oneshot are expected to take some action and exit immediatelly (thus, they are not really services, no running processes remain). A common pattern for these type of service is to be defined by a setup and a teardown action.

Let's create a example foo service that when started creates a file, and when stopped it deletes it.

Define setup/teardown actions

Create executable file /opt/foo/setup-foo.sh:

tuxfight3r

'use strict';
exports.handler = (event, context, callback) => {

    // Get request and request headers
    const request = event.Records[0].cf.request;
    const headers = request.headers;

    // Configure authentication
    const authUser = 'user';
    const authPass = 'pass';

tuxfight3r

#!/bin/bash

# Basic EKS client Setup and management
# Doc: https://docs.aws.amazon.com/eks/latest/userguide/getting-started.html

OS_NAME=linux
OS_ARCH=amd64
OS_DIST=$(cat /etc/os-release |grep ^NAME |awk -F'=' '{print$2}')

KUBECTL_URL=https://amazon-eks.s3-us-west-2.amazonaws.com/1.10.3/2018-07-26/bin/${OS_NAME}/${OS_ARCH}/kubectl

tuxfight3r

Kubectl output options

Let's look at some basic kubectl output options.

Our intention is to list nodes (with their AWS InstanceId) and Pods (sorted by node).

We can start with:

kubectl get no

tuxfight3r

Understanding the Memory Layout of Linux Executables

Required tools for playing around with memory:

• hexdump
• objdump
• readelf
• xxd
• gcore

tuxfight3r

# IMPORTANT!
# This gist has been transformed into a github repo 
# You can find the most recent version there:
# https://github.com/Neo23x0/auditd

#      ___             ___ __      __
#     /   | __  ______/ (_) /_____/ /
#    / /| |/ / / / __  / / __/ __  / 
#   / ___ / /_/ / /_/ / / /_/ /_/ /  
#  /_/  |_\__,_/\__,_/_/\__/\__,_/   

tuxfight3r

---
- name: Create Instance in AWS
  hosts: localhost
  connection: local
  gather_facts: false

  vars:
    aws_access_key: "xxxxxx"
    aws_secret_key: "xxxxxx"
    security_token: "xxxxxx"