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Zero Downtime Deployments
technical kubernetes deployment iaas paasAnd Example of Zero Downtime Deployment Overview Kubernetes based platforms like OpenShift support zero downtime deployments using advanced deployment strategies like: Blue-Green Deployment A/B Deployment Proxy shard / Traffic Splitter Most of these patterns require that your application supports [N-1 Compatibility]1 An Example Step 1. Login using CLI oc login...
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Evolution of PaaS
technical kubernetes policy iaas paasEvolution of Platform as a Service Overview Three well known cloud service models are: IaaS: Infrastructure as a Service PaaS: Platform as a Service SaaS: Software as a Service IaaS and SaaS are well understood models. Though as linux containers go mainstream, the PaaS model is ever evolving. PaaS provides...
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Policy Management in Cloud Native Environment
technical kubernetes openshift programming opa policyPolicy Management in Cloud Native Environments Overview In very simplistic terms, there are three (3) things involved in policy mananagement. Policy is a set of rules that governs the behaviour of the service. Data is the available information to evaluate the policy against. Service is seeking clarification if we should...
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Maintaing State on Kubernetes
technical kubernetes hyperledger openshift programming caching infinispan jboss datagridMaintaining State when deploying Application on Kubernetes Overview Linux containers should be disposable (or emepheral is a more technical term). Meaning that a container should be treated as an immutable software asset which includes the base operating system, software libraries (required dependencies), configuration, folders, and the application itself. This immutable...
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Security Essentials in a Digital World
technical security opinionSecurity Essentials in a Digital World What does being Digital mean Companies are either being disrupted or transforming themselves to be digital businesses. The core purpose of this transformation is to develop the capability to innovate at speed to compete and win. And the changes this transformation introduces are more...