How do you ensure 0 downtime deployments for your applications?
Table of Contents
How do you ensure 0 downtime deployments for your applications?
Zero downtime deployment
- deploy version 1 of your service.
- migrate your database to a new version.
- deploy version 2 of your service in parallel to the version 1.
- once you see that version 2 works like a charm just bring down version 1.
- you’re done!
How do you ensure zero downtime?
Zero Downtime Deployment
- Deployment Architecture. Deployment architecture plays a vital role to ensure there is no downtime for software deployments.
- Stateless. All HTTP requests must be stateless to achieve a zero downtime deployment.
- Backward Compatibility.
- Incremental Deployment.
- A/B Deployments.
How do you get zero downtime deployment in Microservices?
1 Answer
- maintain two copies of your production environment (“blue” and “green”)
- route all traffic to the the blue environment by mapping production URLs to it;
- deploy and test any changes to the application in the green environment;
- “flip the switch” by mapping URLs onto green and unmapping them from blue.
What deployment strategies do you know and have used before How can a company deploy with no downtime?
The aim is to make the change without downtime in a way that the user barely notices the improvements. The most common strategy is to use a blue-green deployment. The new version (the blue version) is brought up for testing and evaluation, while the users still use the stable version (the green version).
How do I deploy a website without downtime?
You can achieve zero downtime deployment on a single server by utilizing Application Request Routing in IIS as a software load balancer between two local IIS sites on different ports. This is known as a blue green deployment strategy where only one of the two sites is available in the load balancer at any given time.
Why is zero downtime deployed?
Zero-downtime deployments ensure updates can be made available to users, without degrading their experience while the update happens. This in turn enables smaller, more frequent updates. The cost of implementing zero-downtime deployments, however, is quite high due to the need for a load balancer and multiple servers.
What is zero downtime architecture in cloud computing?
Zero Downtime describes a site without service interruption. To achieve such lofty goals, redundancy becomes a critical requirement at every level of your infrastructure. The solution is to pull the trigger on sections of your infrastructure, and prove that it fails over quickly without noticeable outage.
What are deployment techniques?
A deployment strategy is a way to change or upgrade an application. The aim is to make the change without downtime in a way that the user barely notices the improvements. It can also be used to verify proper operation in a production context where problems impact a limited number of users.