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Create a High-Availability Kubernetes Cluster on AWS with Kops
In this article we see how to create a High-Availability Kubernetes cluster on AWS with Kops and deploy a Phoenix Chat application.
elixir  kubernetes  amazon  cloud  dns  cluster  helloworld  deployment  bind  nginx  load  balance  5* 
february 2019 by ianweatherhogg
Distributed Phoenix Chat with PubSub PG2 adapter
In this article we see how to cluster Phoenix Chat nodes, using distributed Elixir. We see how pg2 works and inspect how Phoenix efficiently broadcasts the messages in a distributed chat app.
elixir  distributed  node  pubsub  cluster 
february 2019 by ianweatherhogg
96-core ARM supercomputer using the NanoPi-Fire3 |
Building a high performance supercomputer for under £100 (£550 including twelve Fire3s). Parts list, benchmarks and downloadable plans for laser-cutting the acrylic case.
multi  core  cluster  arm  computer 
november 2018 by ianweatherhogg
Service Discovery
When the load balancer queries the endpoint for the instances it gets the IP addressess and ports and can direct traffic accordingly. If there is a surge more Wordpress instances can be easily spun up and found via the service discovery endpoint.
cluster  service  discovery  consul  micro 
november 2018 by ianweatherhogg
Kubernetes services and ingress under X-ray - Container Ops
I haven’t blogged here for over 2 years. It’s not that I had nothing to say, but every time I started writing a new post I never pushed …
kubernetes  cluster  5* 
october 2018 by ianweatherhogg
Blocking ingress traffic to Docker swarm worker machines | OpsTips
Once a Docker Swarm Mode cluster is formed, all nodes participate in the routing mesh and accept ingress traffic. Check out how to block that feature.
docker  cluster  ip  table  topology  5* 
september 2018 by ianweatherhogg
Vert.x - From zero to (micro)-hero
A hand's on lab about building reactive microservice systems with Vert.x
vertx  micro  service  cluster  trading  5*  tutorial  react  stream  java  architecture 
june 2018 by ianweatherhogg
Running akka-cluster on Kubernetes – SoftwareMill Tech Blog
GitHub is where people build software. More than 27 million people use GitHub to discover, fork, and contribute to over 80 million projects.
akka  kubernetes  cluster 
june 2018 by ianweatherhogg
Erlang : Pi2 ARM cluster vs Xeon VM – Medium
A low cost, energy efficient ARM cluster prototype proves it could be a viable alternative to a more traditional platform for a real-world Erlang/OTP server application. What follows the introduction…
erlang  raspberrypi  cluster  metric  4* 
may 2018 by ianweatherhogg
A distributed for loop from scratch in 70 lines of Python | Will Crichton
I walk through the concrete steps of how to parallelize a Python function over a cluster using Docker and Kubernetes assuming knowledge of neither. You will create a distributed, fault-tolerant work queue without too much code.
python  kubernetes  google  cloud  computer  engine  cluster  architecture  queue  processing 
april 2018 by ianweatherhogg
ClusterHAT Review for the Raspberry Pi Zero |
Cluster computing on a £100 budget with 4 Raspberry Pi Zeros and a ClusterHAT, networked together using USB gadget mode and no cables. Includes downloadable plans for a tiny acrylic case for the cluster.
raspberrypi  zero  cluster 
january 2018 by ianweatherhogg
UPDATED: 5 Node Cluster of Raspberry Pi 3s |
Building a Raspberry Pi 3 cluster for only £80 (£250 including five RPi3s). Parts list, build photos and downloadable plans for laser-cutting the acrylic case.
raspberrypi  cluster 
january 2018 by ianweatherhogg
Bargain 5 Node Cluster of PINE A64+ |
Building a 5-node PINE A64+ quadcore cluster for under £75 (£190 including five quadcore A64+s). Parts list, build photos and downloadable plans for laser-cutting the acrylic case.
raspberrypi  cluster  design  inspiration 
january 2018 by ianweatherhogg
Deploying Clustered Akka Applications on Amazon ECS
A detailed walkthrough explaining the deployment of Akka Clusters using Docker on Amazon’s EC2 Container Service platform
amazon  cloud  akka  cluster  docker  4* 
november 2017 by ianweatherhogg
Tech blog for system engineers, enthusiasts and hackers
kubernetes  cluster  5* 
november 2017 by ianweatherhogg
Daniel P. Berrangé » Blog Archive » Installing a 4 node Fedora 18 OpenStack Folsom cluster with PackStack
# virsh net-destroy default
# virsh net-edit default
...changing the following...
  <ip address='' netmask=''>
      <range start='' end='' />
  </ip> this...

  <ip address='' netmask=''>
      <range start='' end='' />
      <host mac='52:54:00:fd:e7:03' name='f18x86_64a' ip='' />
      <host mac='52:54:00:c4:b7:f6' name=...
cluster  network  topology  fedora  open  stack  installation  libvirt  5*  host 
august 2017 by ianweatherhogg
Hazelcast Cluster Manager - Vert.x
Vert.x is a tool-kit for building reactive applications on the JVM.
vertx  hazelcast  cluster  manager 
april 2016 by ianweatherhogg
JGroups Cluster Manager - Vert.x
Vert.x is a tool-kit for building reactive applications on the JVM.
vertx  java  group  cluster  udp  multi  network  interface 
april 2016 by ianweatherhogg
Everything you need to know about the Kubernetes Raspberry Pi cluster — Google Cloud Platform — Developer Advocates — Medium
You may have heard of or seen the Kubernetes Raspberry Pi cluster. In this post I share everything I learned when I buil…
raspberrypi  cluster  kubernetes 
march 2016 by ianweatherhogg
5-Node Cassandra Cluster. 1 Command. - sqldump
[2014-09-16] Update: The command now brings up a 5-node Cassandra cluster in addition to DataStax OpsCenter 5.0.0 and wires it all up together. See …
cassandra  cluster  docker 
march 2016 by ianweatherhogg
Kickstart a Couchbase cluster with Docker - sqldump
A few days ago, I was officially introduced to Couchbase at a Toronto Hadoop User Group meetup. I say “officially” because I’ve …
docker  cluster  couch  base 
march 2016 by ianweatherhogg
Setup a Spark Cluster in 5 minutes - sqldump
Prerequisites Assuming you have 3 nodes: node1, node2, node3, ensure the hosts file contains the following entries on all nodes: 1
3 …
spark  cluster  host  master  slave 
march 2016 by ianweatherhogg
Create a Couchbase Cluster in Less Than a Minute With Ansible - Tug’s Blog
TL;DR: Look at the Couchbase Ansible Playbook on my Github. Introduction When I was looking for a more effective way to create my cluster I asked …
ansible  cloud  base  cluster 
march 2016 by ianweatherhogg
Connecting Docker Containers, Part One
Docker containers are self-contained, isolated environments. However, they’re often only useful if they can talk to each other. There are many ways to connec...
docker  helloworld  cluster  ubuntu  network  bridge  4* 
february 2016 by ianweatherhogg
CoreOS creates and maintains open source projects for Linux Containers.
core  linux  installation  cluster  4*  libvirt 
february 2016 by ianweatherhogg
Clustering CoreOS with Vagrant
CoreOS creates and maintains open source projects for Linux Containers.
vagrant  core  linux  cluster  helloworld 
february 2016 by ianweatherhogg
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