Stark & Wayne

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You can become a superhero of automation and development by learning and practicing. This is our blog from our learnings and practice.

We are consultants and trainers in Cloud Foundry, devops automation and continous delivery. We have the best jobs in the world helping you have the best job in the world.

High Availability (HA) is a common requirement. Unfortunately it is often the case that HA considerations need to be made from the ground up while designing a service. Sometimes a component of your service might…

Posted by:Bill Chapman

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Consul (or etcd) and Docker are fast becoming core primitives for orchestrating production systems. Docker for packaging and containerization of workloads; Consul makes it simple for services to register themselves and to discover other services…

Posted by:Dr Nic Williams

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Consul makes it simple for services to register themselves and to discover other services via a DNS or HTTP interface, provides built-in health checks, and more. It also includes a key-value store similar to Etcd…

Posted by:Dr Nic Williams

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The animated gif* demo below shows: observe a master node failure (consul health checks) promote a slave to become master configure other slaves to the new master configure the original master to become a slave…

Posted by:Dr Nic Williams

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Update: instructions are even simpler thanks to consul v0.3.1+; and releases v5+ of consul-boshrelease. This post documents the old two deployment-step sequence. As of v5 there is now only one deployment required. See…

Posted by:Dr Nic Williams

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This article is a continuation of investigations into service discovery, which started 3 days earlier with The world's quickest demonstration of consul. One side of DNS is the ability for clients to find backend services/…

Posted by:Dr Nic Williams

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Continuing to explore consul for service discovery, I added some health checks to the redis cluster from the previous post (World's quickest demo of consul). As you can see below if a health check is…

Posted by:Dr Nic Williams

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"What is service discovery?" and "Should I investigate consul?" are questions for another day. Today is the day for the world's quickest demonstration* of advertising a master-slave-slave redis cluster across consul.…

Posted by:Dr Nic Williams

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