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How to import and indicate empty request or reply messages:

import "google/protobuf/empty.proto";

service SomeService {
    rpc SomeOperation (google.protobuf.Empty) returns (google.protobuf.Empty) {}
}

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Consul Deployment Guide

This deployment guide covers the steps required to install and configure a single HashiCorp Consul cluster as defined in the Consul Reference Architecture.

Below are instructions for installing and configuring Consul on Linux hosts running the systemd system and service manager.

Reference Material

This deployment guide is designed to work in combination with the Consul Reference Architecture. Although not a strict requirement to follow the Consul Reference Architecture, please ensure you are familiar with the overall architecture design; for example installing Consul on multiple physical or virtual (with correct anti-affinity) hosts for high-availability.

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Vault Deployment Guide

This deployment guide covers the steps required to install and configure a single HashiCorp Vault cluster as defined in the Vault Reference Architecture.

Below are instructions for installing and configuring Vault on Linux hosts running the systemd system and service manager.

Reference Material

This deployment guide is designed to work in combination with the Vault Reference Architecture and Consul Deployment Guide. Although not a strict requirement to follow the Vault Reference Architecture, please ensure you are familiar with the overall architecture design; for example installing Vault on multiple physical or virtual (with correct anti-affinity) hosts for high-availability and using Consul for the HA and storage backend.

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How to create an HTTPS certificate for localhost domains

This focuses on generating the certificates for loading local virtual hosts hosted on your computer, for development only.

Do not use self-signed certificates in production ! For online certificates, use Let's Encrypt instead (tutorial).

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# Pass the env-vars to MYCOMMAND
eval $(egrep -v '^#' .env | xargs) MYCOMMAND
# … or ...
# Export the vars in .env into your shell:
export $(egrep -v '^#' .env | xargs)

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const compose = (...fns) => x => fns.reduceRight((g, f) => f(g), x)
const pipe = (...fns) => compose.apply(null, fns.reverse())

const composeAsync = (...fns) => x => fns.reduceRight((f, g) => f.then(g), Promise.resolve(x))
const pipeAsync = (...fns) => x => composeAsync.apply(null, fns.reverse())

const curry = (f, ...a) =>
    a.length === f.length
        ? f(...a)
        : curry.bind(null, f, ...a)

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#!/bin/bash
set -e

update_version(){
       if [[ "$DONT_BUMP_VERSION" -ne "1" ]]
       then
            echo " Bumping version.. "
       else
            echo "Version will not be bumped since variable DONT_BUMP_VERSION is set."
            exit 0

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git config --global core.autocrlf false
git config core.eol lf
git config core.autocrlf input

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sudo sysctl net.ipv4.conf.all.forwarding=1
sudo sysctl net.bridge.bridge-nf-call-iptables=1
sudo sysctl net.bridge.bridge-nf-call-ip6tables=1

//or

/sbin/sysctl -w net.ipv4.conf.all.forwarding=1
/sbin/sysctl -w net.bridge.bridge-nf-call-ip6tables=1
/sbin/sysctl -w net.bridge.bridge-nf-call-iptables=1

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Vagrant.configure("2") do |config|
	config.vm.box = "maier/alpine-3.3.1-x86_64"
	config.vm.network "public_network", ip: "192.168.1.31", auto_config: true
	config.vm.synced_folder ".", "/vagrant", disabled: true
	config.vm.provider "virtualbox" do |vb|
	  vb.name = 'Alpine1'
	  vb.cpus = 1
	  vb.memory = 1024
	  #vb.customize ["modifyvm", :id, "--natdnshostresolver1", "on"]
	  # Display the VirtualBox GUI when booting the machine