nblagoev

openssl req -x509 -newkey rsa:4096 -sha256 -days 3650 -nodes \
  -keyout example.key -out example.crt -subj "/CN=example.com" \
  -addext "subjectAltName=DNS:example.com,DNS:www.example.net,IP:10.0.0.1"

openssl req -x509 -newkey rsa:4096 -sha256 -days 1825 -nodes \
  -keyout example.key -out example.crt -extensions san -config \
  <(echo "[req]";
    echo distinguished_name=req;
    echo "[san]";
    echo subjectAltName=DNS:example.com,DNS:www.example.net,IP:10.0.0.1

nblagoev

Every so often I have to restore my gpg keys and I'm never sure how best to do it. So, I've spent some time playing around with the various ways to export/import (backup/restore) keys.

Method 1

Backup the public and secret keyrings and trust database

cp ~/.gnupg/pubring.gpg /path/to/backups/
cp ~/.gnupg/secring.gpg /path/to/backups/
cp ~/.gnupg/trustdb.gpg /path/to/backups/

or, instead of backing up trustdb...

nblagoev

Build local maven repo of local jars

1. Create a new folder, let’s say local-maven-repo at the root of your Maven project. Just add a local repo inside your of your pom.xml:

<repositories>
    <repository>
        <id>local-maven-repo</id>
        <url>file:///${maven.multiModuleProjectDirectory or project.basedir}/local-maven-repo</url>
    </repository>

nblagoev

The OpenFaaS documentation for faas-netes gives a clear explanation of how to install with Helm, but Pivotal Container Service (PKS) has 2 caveats since provisoned Kubernetes clusters are non-RBAC but are token backed and LoadBalancer inclusion with NSX-T. This is going to be a quick streamline of the documentation that adds out of the box support for PKS.

$ curl https://raw.githubusercontent.com/kubernetes/helm/master/scripts/get | bash
$ kubectl -n kube-system create sa tiller && kubectl create clusterrolebinding tiller --clusterrole cluster-admin --serviceaccount=kube-system:tiller
$ helm init --skip-refresh --upgrade --service-account tiller
$ kubectl apply -f https://raw.githubusercontent.com/openfaas/faas-netes/master/namespaces.yml
$ helm repo add openfaas https://openfaas.github.io/faas-netes/
$ helm repo update && helm upgrade openfaa

nblagoev

#!/bin/bash
# Author: Jay Dansand, Technology Services, Lawrence University
# Date: 10/17/2014

# OpenSSL requires a port specification; default to 443.
SERVER="$1:443"
SERVER_HOST=$(echo "$SERVER" | cut -d ":" -f 1)
SERVER_PORT=$(echo "$SERVER" | cut -d ":" -f 2)
if [[ -z "$SERVER_HOST" || -z "$SERVER_PORT" ]]; then
  echo "Usage: $0 host[:port] [ciphers [delay in ms]]"

nblagoev

import org.reactivestreams.Subscription;

import java.time.LocalTime;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;
import java.util.function.Consumer;

import reactor.core.publisher.BaseSubscriber;
import reactor.core.publisher.Flux;
import reactor.core.publisher.Mono;

nblagoev

Sessions

New Session

• tmux new [-s name] [cmd] (:new) - new session

Switch Session

• tmux ls (:ls) - list sessions
• tmux switch [-t name] (:switch) - switches to an existing session

nblagoev

// String utils
//
// resources:
//  -- mout, https://github.com/mout/mout/tree/master/src/string

/**
 * "Safer" String.toLowerCase()
 */
function lowerCase(str){
  return str.toLowerCase();

nblagoev

type Shape =
    { kind: "circle", radius: number } |
    { kind: "rectangle", w: number, h: number } |
    { kind: "square", size: number };

function assertNever(obj: never) {
    throw new Error("Unexpected object");
}

function getArea(shape: Shape) {

nblagoev

==========================================          ==========================================
             TMUX COMMAND                                        WINDOW (TAB)
==========================================          ==========================================

List    tmux ls                                     List         ^b w
New          -s <session>                           Create       ^b c
Attach       att -t <session>                       Rename       ^b , <name>
Rename       rename-session -t <old> <new>          Last         ^b l               (lower-L)
Kill         kill-session -t <session>              Close        ^b &