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To play with Nomad ecosystem tools: levant, nomad-helper, envoy-consul-sds , gomplate, openebs

License: GNU Affero General Public License v3.0

Go 15.14% Shell 66.26% Makefile 18.60%

nomad hashicorp lxd traefik distributed-systems

nomadbox-lxd's Introduction

NomadBox using LXD + Hashicorp Nomad

Description: Port of nomad-box project to use LXD + Nomad instead of Azure + Nomad.

Objective: Simulate a AWS Datacenter (SG) with 3 Availability Zones (AZ) running a 3-server Nomad + Consul cluster with worker nodes.

Presentation @Geekcamp.MY 2018 demo-ing nomadbox-lxd

Pre-reqs

Vagrant
make

Setup Instructions

Step #1: Run Vagrant

Step #2: Setup tooling inside Vagrant

Step #3: Run LXD containers

Step #4: Run workload inside LXD containers from Vagrant

Step #5: Clean up

nomadbox-lxd's People

Contributors

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nomadbox-lxd's Issues

Fix systemd-resolver in Vagrant host

systemd-resolved is buggy; takes up CPU; loads the dnsmasq and randomly causes kernel panic in the network driver, making it not possible to ssh into the vagrant box. Current setup to delegate to dnsmasq for domains ending with .consul; otherwise to use standard 1.1.1.1, 8.8.8.8 upstream resolver.

Short term fix: Disable systemd-resolved; point direct to dnsmasq (10.1.1.1) + 1.1.1.1. Proven to fix, no need for more hacks like increasing nf_conntrack limit or to disable iptables. It is

If have time; look at the more modern options; and possibly use sysdig/ebpf to trace the flaw in systemd-resolved

Add .Net Core Demo App

Port: https://github.com/g0t4/aspnetcore-generator-api/tree/course

Multi-datacenter

See https://github.com/g0t4/consul-getting-started

Port Fault Injection

See: https://istio.io/docs/guides/intelligent-routing/

Basic routing
Fault Injection
Traffic Shifting

Port Istio BookInfo App

See: https://istio.io/docs/guides/bookinfo/
Example: https://github.com/istio/istio/tree/master/samples/bookinfo/src

Port traffic shaping leveraging Consul Connect

See: https://istio.io/blog/2018/egress-monitoring-access-control/

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