OpenShift

vs

Terraform

Kubernetes is an open-source system for automating deployment, scaling, and management of containerized applications.. It groups containers that make up an application into logical units for easy management and discovery. Kubernetes builds upon 15 years of experience of running production workloads at Google, combined with best-of-breed ideas and practices from the community.

A Platform-as-a-Service (PaaS) for cloud computing provided by Google. All applications hosted with Google App Engine is housed and managed in the same data centers that Google use for their product line. Google App Engine sandbox each individual instance and run them across multiple servers to achieve maximum uptime and fault tolerance.

Heroku is a platform as a service (PaaS) built especially for applications developers. When Heroku first launched in 2007 it was a platform dedicated to deploy and host Ruby applications. Today the offering has broadened and allows developers to launch applications for most languages, frameworks and technologies in a matter of minutes with the help of Heroku Buildpacks. There are currently over 5,400 Heroku Buildpacks in the Heroku Elements Marketplace, that can be used by developers to speed up deployment and saftley host their applications online.

Rancher enables organizations to easily run containers in production. It is a complete free and open-source software stack for teams adopting containers. With Rancher, you no longer have to build a container services platform from scratch by combining various open source technologies. Rancher addresses the operational and security challenges of managing multiple Kubernetes clusters, while providing DevOps teams with integrated tools for running containerized workloads.

Ansible is an open-source software provisioning, configuration management, and application-deployment tool. With Ansible you can streamline your deployment process, allowing you to roll out enterprise scale applications with the bush of a button or a command via the terminal. Ansible itself is written in Python and has a minimal learning curve, allowing you to build simple setup procedures that can manage all of your CI/CD needs.

Rundeck is an open source automation service with a web console, command line tools and a WebAPI. With Rundeck you easily run automation tasks across a set of nodes. Rundeck is avalible as two versions, Rundeck Community and Rundeck Enterprise, where the first mentiond is built for small teams. It addresses the technical complexity of Runbook Automation for solving non-production self-service. The later is aimed at teams and organizations at scale. It addresses the organizational complexity of teams and multiple clusters with self-service, incident response, and compliance and auditing features.