dmikusa

package main

import (
	"bytes"
	"fmt"
	"os"
	"path/filepath"
	"strings"

	"github.com/BurntSushi/toml"

dmikusa

Programming Challenges

• Pick something and implement it
• The topics are open-ended
• Pairing is suggested
• Want to try some new tech, this is a great time
• You may use any tools that you like, including code generators and AI, but make sure you can roughly explain what your code is going at the end
• Towards the end, we'll ask people to show off their work. A demo or quick code walk through. Nothing crazy, just a couple minutes.
• You must decide what you implement. Consider time, what you can deliver, what you can reasonably demo, and wow factor.

dmikusa

#!/bin/bash
set -eio pipefail

IMAGE="$1"
TAG="$2"

TOKEN=$(curl -s "https://auth.docker.io/token?scope=repository:$IMAGE:pull&service=registry.docker.io" | jq -r .token)

MANIFEST=$(curl -s -L -H "Accept: application/vnd.docker.distribution.manifest.v2+json" -H "Authorization: Bearer $TOKEN" https://registry-1.docker.io/v2/$IMAGE/manifests/$TAG)

dmikusa

package com.example.demo;

import org.cloudfoundry.client.CloudFoundryClient;
import org.cloudfoundry.client.v2.securitygroups.ListSecurityGroupsRequest;
import org.cloudfoundry.client.v2.securitygroups.ListSecurityGroupsResponse;
import org.cloudfoundry.client.v2.securitygroups.SecurityGroupResource;
import org.cloudfoundry.reactor.ConnectionContext;
import org.cloudfoundry.reactor.DefaultConnectionContext;
import org.cloudfoundry.reactor.TokenProvider;
import org.cloudfoundry.reactor.client.ReactorCloudFoundryClient;

dmikusa

Notes for Cloud Natvie Buildpacks Talk

https://gist.github.com/dmikusa-pivotal/67eb684ea3d3606cee6db5995ba4c4e3

Running internal Registry

To start:

docker run -d -p 5000:5000 --restart=always -e REGISTRY_STORAGE_DELETE_ENABLED=true -v registry-volume:/var/lib/registry --name registry registry:2

dmikusa

#!/bin/bash
set -e

# requires `jq`
function load_all_pages {
    URL="$1"
    DATA=""
    until [ "$URL" == "null" ]; do
        RESP=$(cf curl "$URL")
        DATA+=$(echo "$RESP" | jq .resources)

dmikusa

#!/bin/bash
#
# See https://mikusa.blogspot.com/2019/07/php-cloud-native-buildpacks.html
#

# create private bridge network
docker network create -d bridge test-app-bridge

# create db
docker run --name test-db --network test-app-bridge -e MYSQL_ROOT_PASSWORD=hacKm3 -d percona

dmikusa

#!/bin/bash
#
# Find an app with an exact name, app must be visible to the logged in user
#
set -e

function load_all_pages {
    URL="$1"
    DATA=""
    until [ "$URL" == "null" ]; do

dmikusa

#!/usr/bin/env ruby
require 'yaml'
require 'openssl'

def confirm
  print "    Enter (y/n)... "
  begin
    while input = STDIN.gets.downcase.strip
      case input
      when "y"

dmikusa

To test this:

1. Run npm install or yarn install
2. Run node index.js && ssh -p 2222 cf:$(cf app app-name --guid)/0@ssh.system.domain.com, where app-name is your app name and ssh.system.domain.com is the DNS name of your SSH end point.
3. When prompted for a password, enter the code listed after Access Code is.

You should now be SSH'd into the given application & instance id.

NOTE: better error handling should be done, but has been omitted to keep this example brief.