Openshift intro nad installation

 Openshift comes in 2 flavours:

1.OKD(Openshift Community Distribution)(Communiy Edition)

2.OCP(Openshift Container Platform)(Enterprise Edition)

    within ocp we had 2 classifications:

   1.Managed Openshift(Azure,AWS,IBM cloud managed by RedHat)

   2.Unmanaged Openshift(All public clouds including gcp and onprem as well, managed by end user)

     within Unmanaged Openshift we have 2 classifications:

           1. UPI(User Provisioned Infrastructure)

           2. IPI(Installer Provisioned Infrastructure)


Install cluster on single node: blog and video and blog





OpenShift Container Platform[edit]

OpenShift Container Platform (formerly known as OpenShift Enterprise[15]) is Red Hat's on-premises private platform as a service product, built around application containers powered by Docker, with orchestration and management provided by Kubernetes, on Red Hat Enterprise Linux and Container Linux (formerly known as CoreOS or RHCOS).[16]

OKD[edit]

OKD,[17] known until August 2018 as OpenShift Origin[18] (Origin Community Distribution) is the upstream community project used in OpenShift Online, OpenShift Dedicated, and OpenShift Container Platform. Built around a core of Docker container packaging and Kubernetes container cluster management, OKD is augmented by application lifecycle management functionality and DevOps tooling. OKD provides an open source application container platform. All source code for the OKD project is available under the Apache License (Version 2.0) on GitHub.[19]

Red Hat OpenShift Online[edit]

Red Hat OpenShift Online (RHOO) is Red Hat's public cloud application development and hosting service which runs on AWS and IBM Cloud.[20]

Online offered version 2[when?] of the OKD project source code, which is also available under the Apache License Version 2.0.[21] This version supported a variety of languages, frameworks, and databases via pre-built "cartridges" running under resource-quota "gears". Developers could add other languages, databases, or components via the OpenShift Cartridge application programming interface.[22] This was deprecated in favour of OpenShift 3[23] and was withdrawn on 30 September 2017 for non-paying customers and 31 December 2017 for paying customers.[24]

OpenShift 3 is built around Kubernetes. It can run any Docker-based container, but Openshift Online is limited to running containers that do not require root.[23]

Red Hat OpenShift 4 for IBM Z and IBM LinuxONE supports on-premise, cloud, and hybrid environments.[25][26]

OpenShift Dedicated[edit]

OpenShift Dedicated (OSD) is Red Hat's managed private cluster offering, built around a core of application containers powered by Docker, with orchestration and management provided by Kubernetes, on a foundation of Red Hat Enterprise Linux. It is available on the Amazon Web Services (AWS), IBM Cloud, Google Cloud Platform (GCP) and Microsoft Azure marketplaces since December 2016.[27][28]

Comments

Post a Comment

Popular posts from this blog

Docker Imp points

  1. docker run -it <image> <any command like ls>  - It will start the container execute the command and stop the container.The status of the stopped container can be seen using docker ps -a 2. docker run -it --rm <image> <any command like ls> - It will do the same the same hing, but after stopping it will also kills the container 3. If we run an docker image without specifying -d(detached mode),then we will enter into container directly and if we exit the container will be stopped 4.If we run container in detached mode by specifying -d,as shown below image will run in background,we can connect to it using exec. Eg:$docker run -itd <image> 5. About user in docker file: - If we specify any user in dockerfile, all the commands will be executed by that user and in  the image that user is retained, i.e if you make a container out of it,we will get same user. - If we want to switch user,you can do so using another user instruction in docker file a...
Read more

Docker volumes backup and restore & Docker networks

 Backup and restore docker volumes Official link Youtube Best aricle for volumes backup and restoration Docker neworks: Network drivers: Network driver summary : Bridge network Official link : The default network used by docker if we do not specify any option is bridge network We can create our own bridge network, Containers on the default bridge network can only access each other by IP addresses, unless you use the --link option , which is considered legacy. On a user-defined bridge network, containers can resolve each other by name or alias. We can create bridge network as shown below      $docker network create <network name>   If we don't specify any network driver then by default it is bridge and we can define subnet and default gateways by using different flagsf we can add container to user defined network 2 ways While creating docker container from image using --network or --net flag        $docker run --it --net=<network na...
Read more