Are You on the Cloud Bandwagon?
Are You on the Cloud Bandwagon?
Where are you on your cloud journey? Wherever you are in the process, this article should arm you with the right information.
Join the DZone community and get the full member experience.Join For Free
Learn how to migrate and modernize stateless applications and run them in a Kubernetes cluster.
Organizations big and small are increasingly realizing the value of cloud, more specifically the public clouds led by AWS, Azure and Google Cloud (GCP). The depth of services from these providers with a continued focus on the improved maturity of existing services alongside a steady addition of new services every quarter is breathtaking, to say the least. It is not a question of "If?" or "Why?" anymore, it is more about "When?" The sooner you get there the better, so the tangibles and the intangibles can kick in.
The chart below from Gartner provides the revenue summary for 2016-17 and forecast till 2020 highlighting the pace of cloud adoption.
The obvious question for those new to the public cloud is "Why move to cloud, and what are the benefits?" Some of the key benefits of the public cloud environments are highlighted in the infographic below:
Even though there are a few challenges like data transfer costs, security, and cloud provider lock-in, the benefits far outweigh the challenges.
With the value proposition for the cloud established, the more pertinent question is, "What is your cloud migration strategy, and how do you get there?" There are three prevalent approaches: rehosting, re-platforming, and refactoring.
This is the most popular strategy. This is a lift-and-shift approach where the OS images are moved as-is to the cloud. This is the least complex and fastest path to the cloud. This helps organizations to get off their on-premise CapEx expenses and set them up for scale on the cloud. This also gives them the time required to reevaluate their architecture for re-platforming or refactoring.
This is the second most popular approach. The strategy here can range from minimal changes like adopting some of the cloud-native services while retaining the application components at large, to going full blown with all of the application constructs. The effort and time to completion here are directly proportional to the extent of components re-platformed. Many organizations see considerable cost savings (as much as 80%) and efficiency gains with this approach.
This is the least chosen option as it involves the most effort and time to completion. Organizations are expected to achieve the most value from the cloud with this approach (in most cases). This involves total re-architecting of the applications to make the most of the cloud-native and other third-party services. In some cases, organizations decide to migrate to cloud-native business applications.
Most organizations choose one of the above options or a combination of them depending on their timelines, personnel skill set, business and operational goals.
Cloud Migration Strategy
Next up is the execution of the cloud migration strategy which can be achieved with the following high-level activities:
Choosing the right cloud provider
Preparing and planning
Migrating applications and data
Checking and validating
Organizations embark on the cloud migration with varying degrees of automation, ranging from fully manual to a very high level of automation. Automation of the cloud migration to a large extent will enable the following benefits:
Accelerated time to market.
Reduced migration cost.
Minimal rework/errors during migration.
Cloud providers do offer migration utilities like server migration service, database migration service from AWS and Azure Migrate from Azure, but they require a reasonable effort and have the steepest learning curves of the cloud services.
Cloud migration tools provide a high level of automation, bringing the above benefits to fruition. Organizations save millions of dollars and expedite their cloud migration by 50% or more (6-9 months in most cases) using these automation tools. While some of these tools only offer migration automation, those like Kaiburr enable both migration automation and subsequent operations on the cloud thereby providing more long-term value.
Where are you on your cloud journey? Are you testing the waters or in the middle of a large-scale migration? Are you still standing on the shores waiting for the high seas to calm down? Wherever you are in the process, this article should arm you with the right information.
Good luck in a fruitful cloud venture and a fantastic 2018!!!
Published at DZone with permission of Hariram Ananthasubramanian . See the original article here.
Opinions expressed by DZone contributors are their own.