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#!/bin/bash

set -eu

FOLDER=$1
PLAYLIST=$2

rm -f playlist.txt
mkdir -p $FOLDER
yt-dlp --flat-playlist -i --print-to-file url playlist.txt $PLAYLIST

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const { PrometheusExporter } = require('@opentelemetry/exporter-prometheus');
const { MeterProvider }  = require('@opentelemetry/metrics');
const { Resource }  = require('@opentelemetry/resources');


// Add your port and startServer to the Prometheus options
const options = {port: 9464, startServer: true};
const exporter = new PrometheusExporter(options);

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CKAD Exam Scope Statement

13% - Core Concepts

• Understand Kubernetes API primitives
• Create and configure basic Pods

• Learn: http://kubernetesbyexample.com/pods/

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Task: Create a svc from a docker image, expose it, curl it.

Minikube:

# 1) start local k8s
$ minikube start --kubernetes-version=v1.7.5 --vm-driver hyperkit
...
$ kubectl get pods,svc,deployment
NAME             TYPE        CLUSTER-IP   EXTERNAL-IP   PORT(S)   AGE
svc/kubernetes ClusterIP 10.0.0.1  443/TCP 1m

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{
  "main": {
    "name": "express",
    "ecosystem": "npm",
    "repository": "https://github.com/expressjs/express"
  },
  "librariesio": {
    "name": "express",
    "platform": "NPM",
    "description": "Fast, unopinionated, minimalist web framework",

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Getting (back) into JavaScript development

Lately I came back into Javascript development. Although my preferred language is still Go there is the undeniable fact that JavaScript is a tool used by many modern platforms. As per request by Mr. Goern here are my lessons learned. Please comment and fill in.

General setup

I’m on a Mac and use iTerm and VSCode. I’m not going to argue about these choices.

Setup ESLint

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oc login -u system:admin

cat <<-EOF > /Users/mdl/tmp/pv.yaml
apiVersion: v1
kind: PersistentVolume
metadata:
  name: pv0001
spec:
  capacity:
    storage: 1Gi

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Original Docs

https://github.com/openshift/origin/blob/master/docs/cluster_up_down.md

Install

$ brew update
$ brew install --devel openshift-cli

# add 172.30.0.0/16 to the insecure registries
$ docker-machine ssh 

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oc new-project mdl
oc new-build https://github.com/openshift-s2i/s2i-aspnet
oc new-app sabre1041/s2i-aspnet~https://github.com/openshift-s2i/s2i-aspnet-example --context-dir=app --name=aspnet-app
oc expose service aspnet-app

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export OPENSHIFT_DEV_CLUSTER=true
export OPENSHIFT_NUM_MINIONS=1
vagrant up

Bringing machine 'master' up with 'virtualbox' provider...
Bringing machine 'minion-1' up with 'virtualbox' provider...
==> master: Importing base box 'fedora_deps'...
==> master: Matching MAC address for NAT networking...
==> master: Setting the name of the VM: origin_master_1467065804327_11350
==> master: Fixed port collision for 22 => 2222. Now on port 2200.