Why do we need deployment in Kubernetes?
Table of Contents
Why do we need deployment in Kubernetes?
A Kubernetes Deployment is used to tell Kubernetes how to create or modify instances of the pods that hold a containerized application. Deployments can scale the number of replica pods, enable rollout of updated code in a controlled manner, or roll back to an earlier deployment version if necessary.
What is purpose of deployment Yaml?
It allows users to declare the desired state in the manifest (YAML) file, and the controller will change the current state to the declared state.
What is Kubernetes deployment?
A Kubernetes deployment is a resource object in Kubernetes that provides declarative updates to applications. A deployment allows you to describe an application’s life cycle, such as which images to use for the app, the number of pods there should be, and the way in which they should be updated.
Is Kubernetes necessary?
Kubernetes is useful if you are dealing with many containers and require some automation of the steps when starting them. So, unless you have a large microservice environment, Kubernetes is unlikely to bring much added value. Probably, it is not needed or suited for your case and you should not invest in it.
Why do we need container orchestration?
Container orchestration can be used in any environment where you use containers. It can help you to deploy the same application across different environments without needing to redesign it. And microservices in containers make it easier to orchestrate services, including storage, networking, and security.
How do you deploy a container in Kubernetes?
Objectives
- Package a sample web application into a Docker image.
- Upload the Docker image to Artifact Registry.
- Create a GKE cluster.
- Deploy the sample app to the cluster.
- Manage autoscaling for the deployment.
- Expose the sample app to the internet.
- Deploy a new version of the sample app.
What is the purpose of the deployment object?
The deployment object allows you to control the range of available and excess pods through maxSurge and maxUnavailable fields. With a rolling update strategy there is no downtime during the update process, however the application must be architected to ensure that it can tolerate the pod destroy and create operations.
Do I need Docker for Kubernetes?
Docker is like an aeroplane and Kubernetes is like an airport. You wouldn’t ask “Which one should I use to travel?” So it goes without saying that you need both Docker and Kubernetes. In this blog post, I will give an overview of how does Kubernetes work with Docker.
What is Kubernetes and how does it relate to Docker?
Kubernetes is intended to simplify the operation of containerised workloads across large fleets of machines. Back in those early days, Kubernetes was inextricably linked to Docker. It used Docker directly to interact with containers, even though it only needed a subset of functionality – the parts responsible for actually running containers.
How do companies use Kubernetes?
Tinder’s move to Kubernetes. Due to high traffic volume,Tinder’s engineering team faced challenges of scale and stability.
What Kubernetes can do for container orchestration?
Kubernetes is a container orchestration platform used for automating deployment, scaling, and management of application containers , and while it works with a range of container tools, it is often paired with Docker due to its many benefits.