Master of Devops

Prometheus is an open source monitoring system and time series database. It addresses many aspects of monitoring such as the generation and collection of metrics, graphing the resulting data on dashboards, and alerting on anomalies. The main features of Prometheus is that its a multi-dimensional...

Service Discovery In The Swarm ClusterThe old (standalone) Swarm required a service registry so that all its managers can have the same view of the cluster state. When instantiating the old Swarm nodes, we had to specify the address of a service registry. However, if you take a look...

Docker couldn’t make this default setting much stricter because there are so many types of containers, and between them they use pretty much all of the remaining system calls.The other significant novelty here is the ability to set Seccomp profiles individually for containers. This...

The Domain Name System (DNS) is a standard technology for managing public names of Web sites and other Internet domains. DNS technology allows you to type names into your Web browser like compnetworking.about.com and your computer to automatically find that address on the Internet. A key element of the DNS is a worldwide collection of DNS servers.How DNS WorksThe DNS is a distributed...

Kubernetes is a technology which is some what difficult to understand.But if you have proper understanding then you will feel very easy to implement.Some times we are facing problem in understanding replicationcontroller in kubernetes.Today we'll drill down to one step for understanding kubernetes replication controller.Sample replication controller file:apiVersion: v1kind: ReplicationControllermetadata: ...

Problems: I am new in kuberenetes, docker ,vagrant ,sonarqube, jenkins. so if you want to explore in your localvm about kubernetes then you have to setup that kubernetes cluster in your local vm.I am providing here basic steps to setup kubernetes cluster in your local.Assumptios: i'll setup master and node in one VM.same node will works as master and node both.Below are the basic...