kamal2222ahmed

How to Install VNC on an AWS EC2 Centos 7.2 AMI
Reference: http://devopscube.com/how-to-setup-gui-for-amazon-ec2-rhel-7-instance/

1. Update the server using the following command.

sudo yum -y update

2. Install the gnome GUI components using the following command.

sudo yum groupinstall -y "Server with GUI"

kamal2222ahmed

export CLUSTER_DNS=[...]

export CLUSTER_IP=[...]

ssh -i workshop.pem docker@$CLUSTER_IP

docker container run -d --name jenkins -p 8080:8080 jenkins:alpine

docker container ls # Wait until it is up and running

kamal2222ahmed

1. How to see if a Docker container is running or not ?
   docker inspect -f {{.State.Running}} <container-id>

2. What is a Docker Typical Workflow ( build image --> Run container ) etc

3. How do i transfer docker container from one host to another

4. How do i use docker-compose ? 

5. Can i run multiple containers which are located on local disk via docker-compose ?

kamal2222ahmed

import groovyx.net.http.*;
import static groovyx.net.http.ContentType.*;
import static groovyx.net.http.Method.*;

class NexusArtifactCleanup {

	/**
	 *  Settings in which to run script.
	 */

kamal2222ahmed

#!/usr/bin/env python3

from requests import get
import sys
from json import dumps
from os import listdir,remove,rmdir
from shutil import rmtree

REGISTRY_URL = "http://127.0.0.1:5000/v2/"
REGISTRY_DATA_PATH = "/data/registry/"

kamal2222ahmed

#!/bin/bash

REPO_URL="https://repository.xxx.net/repository/"
USER="admin"
PASSWORD="datpassword"

BUCKET="portal-docker"
KEEP_IMAGES=10

IMAGES=$(curl --silent -X GET -H 'Accept: application/vnd.docker.distribution.manifest.v2+json' -u ${USER}:${PASSWORD} "${REPO_URL}${BUCKET}/v2/_catalog" | jq .repositories | jq -r '.[]' )

kamal2222ahmed

# If you work with git, you've probably had that nagging sensation of not knowing what branch you are on. Worry no longer!

export PS1="\\w:\$(git branch 2>/dev/null | grep '^*' | colrm 1 2)\$ "

# This will change your prompt to display not only your working directory but also your current git branch, if you have one. Pretty nifty!

# ~/code/web:beta_directory$ git checkout master
# Switched to branch "master"
# ~/code/web:master$ git checkout beta_directory
# Switched to branch "beta_directory"

kamal2222ahmed

Each of these commands will run an ad hoc http static server in your current (or specified) directory, available at http://localhost:8000. Use this power wisely.

Discussion on reddit.

Python 2.x

$ python -m SimpleHTTPServer 8000

kamal2222ahmed

### print to stdout all the versions of packages that are installed, as well as their dependencies, in a tree-structure.
$npm ls promzard

$npm -g list

test.js:

function npmls(cb) {
  require('child_process').exec('npm ls --json', function(err, stdout, stderr) {
    if (err) return cb(err)

kamal2222ahmed

Pre-requisite: go to http://www.chiark.greenend.org.uk/~sgtatham/putty/download.html download http://the.earth.li/~sgtatham/putty/latest/x86/putty.exe and http://the.earth.li/~sgtatham/putty/latest/x86/puttygen.exe

Run puttygen and generate the key

1. Click 'Generate' move the mouse around as instructed and wait