es6-cheatsheet - ES6 cheatsheet containing tips, tricks, best practices and code snippets

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Deployments and Rollbacks

By default OpenShift applications prepare, distribute, and activate deployments on every git push. Alternatively, a user may choose to disable automatic deployments and use the 'rhc deployment' set of commands to fully control the deployment lifecycle. Use these commands to deploy manually from a git reference or from a binary file, list and display deployments and also activate existing deployments.

The instanceof operator tests whether an object has in its prototype chain the prototype property of a constructor.

This article covers several Linux-native apps that benchmark I/O devices such as HDDs, SSDs, USB thumb drives, etc. There is also a "database" section specific to SSDs meant to capture user-entered benchmark results.

Develop, Host, and Scale Your Apps in the Cloud

OpenShift is Red Hat's Platform-as-a-Service (PaaS) that allows developers to quickly develop, host, and scale applications in a cloud environment. With OpenShift you have a choice of offerings, including online, on premise, and open source project options.

Quickly build, launch and host applications in the public cloud, operated and supported by Red Hat.

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Great news fellow developers, OpenShift now supports deployment history complete with the ability to rollback to a previous version of your application. Why is this important? I will be the first to admit to having pushed things to production only to find a new bug that is critical in nature and has to be fixed immediately. The most obvious way to handle this is to rollback the application code to the last known working state while developers can work to resolve the defect in the software. Throughout my years in development and managing system administrators, I have seen various methods to solve this problem including versioning RPMS and keeping them in a repository to backing up the gold build of the .war or .ear file in Javaland. During this blog post, I will introduce you to deployment and rollback strategy we have implement for all users of the OpenShift PaaS.