EXCAVATIONIST OR GEODIST HOW TO
EXCAVATIONIST OR GEODIST GENERATOR
EXCAVATIONIST OR GEODIST SOFTWARE

The Pavlovo hydroelectric power plant was the first large-scale (lomestic hydroelectric power plant built underĬ()mplex geologic conditions on highly karstic limestone rock.

Conway’s law is kinda important when thinking about distributed systems But there’s far more important law to think about Murphy’s Law Things When your running multiple instances and at multiple different locations at the same time, likelihood of things breaking gets higher And when things break, they break in more than one place Personal experience: And things usually break during bank holidays.~gdrotechnical Construction, Vol.

(container) scheduler needs to understand your infra locations To some level Scheduler should be able to spread app instances into different “zones” Scheduler should be able to pin services in a certain location Placement-pref spread in Swarm.

Sleeve user space routing User space encryption, if not disabled UDP “custom” tunneling Fastdp Weave configures OVS module in kernel Kernel level routing VXLAN headers used Some NICs offer VXLAN acceleration, packet transformations on hardware Fastdp w/ IPSec ESP protocol used AES w/ GCM for encryption.

Bunch of other alternatives too Kubernetes Docker Swarm Rancher Networking Calico Kuryr Weave Flannel.

Containers abstract the provider out Overlay networking as an enabler Abstract provider networking details out Transparent security at low level networking.

Why is everyone talking about containers? You can run multiple apps on one single host with ease Any host with container engine can run any app As long as they are using the standard image format Java reference Deploying an app is basically two step process, pull image and run it.

EXCAVATIONIST OR GEODIST GENERATOR

After a few weeks/months system looks like this, a perfectly working system You have every feature that you need, and still some duck tape for the future What if that generator dies? Fun to build these kinds of things, but maybe not best use for your time (and company money).

Script your way out VPNs for inter-cloud connectivity Anyone setup VPN knows it’s a bit of a pain Not all cloud provider provide private networking Containers help to solve some of the issues Ready made cross-cloud platform, are there any?.

App developers should not have to worry about DC/cloud provider details Apps can connect to other apps “natively”, no need to worry about any network level details Network level security should be taken care of by the “platform”.

EXCAVATIONIST OR GEODIST HOW TO

Configuration management is a pain How do you deploy your app into multiple clouds Networking is different in all providers How to enable connectivity between clouds Securely How will your services find each others between clouds Some services are internal, microservices.Single cloud region halt does not halt your app Natural disasters Mis config, AWS example Data has to be within EU for example Do not tie yourself into one provider Hybrid solutions Access to in-house private assets Oracle running in the basement.Why would one want to run apps across clouds / datacenters.

Nodes in the overlay network can be thought ofĪs being connected by virtual or logical links, each of whichĬorresponds to a path, perhaps through many physical links, in the

EXCAVATIONIST OR GEODIST SOFTWARE

Software components of systems and services in theĭifferent regions and localities of the 2017Īn overlay network is a computer network that is built on top ofĪnother network. “the natural arrangement and apportionment of the variousįorms of animals and plants in the different regions and Previous Tecnotree, Digia, Tieto, Nokia, …īio All-around handyman on technical topics.

Container Camp 2017 - Geographically distributed microservices with containers

Excavationist or geodist