What is purpose of service account in Kubernetes?

Kubernetes service accounts let you give an identity to your Pods, which can be used to: Authenticate Pods to the Kubernetes API server, allowing the Pods to read and manipulate Kubernetes API objects (for example, a CI/CD pipeline that deploys applications to your cluster).

What is the purpose of service accounts?

Overview. A service account is a user account that is created explicitly to provide a security context for services running on Windows Server operating systems. The security context determines the service’s ability to access local and network resources.

What is service account in EKS?

This service account can then provide AWS permissions to the containers in any pod that uses that service account. With this feature, you no longer need to provide extended permissions to the Amazon EKS node IAM role so that pods on that node can call AWS APIs.

What service account does Kubectl use?

When you (a human) access the cluster (for example, using kubectl ), you are authenticated by the apiserver as a particular User Account (currently this is usually admin , unless your cluster administrator has customized your cluster).

What is service account token in Kubernetes?

Adding a Service Account Authentication Token to a Kubeconfig File. A service account has an associated service account authentication token, which is stored as a Kubernetes secret. Having created a service account, you bind it to a clusterrolebinding that has cluster administration permissions.

What is the difference between service account and user account?

In that case there is really no difference between a user account and the so called service accounts. Since this service account is simply a domain user, all the task related to managing the domain users apply to it. For example you should keep the password up to date manually.

What is an advantage of the service account type?

The advantage of a managed service account over a user domain account is that MSA accounts cannot be used to log into a machine, have rotating passwords that are managed by the domain, and cannot be locked out. This is the highest privileged built-in account.

How do I create a Kubernetes service account?

1. Step 1: Create service account in a namespace.
2. Step 2: Create a Cluster Role.
3. Step 3: Create a CluserRole Binding.
4. Step 4: Validate Service Account Access Using kubectl.
5. Step 5: Validate Service Account Access Using API call.

How can I get service account token Kubernetes?

Obtaining the service account token by using kubectl

1. Install kubectl in your cluster.
2. Get the service account token by using kubectl.
3. kubectl config set-credentials sa-user –token=$(kubectl get secret -o jsonpath={.data.token} | base64 -d) kubectl config set-context sa-context –user=sa-user.

What is service account name?

A service account is a special type of Google account intended to represent a non-human user that needs to authenticate and be authorized to access data in Google APIs. Typically, service accounts are used in scenarios such as: Running workloads on virtual machines (VMs).

What is service accounting?

Service accounting and product accounting refer to the practices businesses use to record and track the professional services and tangible goods they buy and sell, respectively.

What is the difference between user accounts and service accounts in Kubernetes?

User accounts vs service accounts. Kubernetes distinguishes between the concept of a user account and a service account for a number of reasons: User accounts are for humans. Service accounts are for processes, which run in pods. User accounts are intended to be global.

What is a service in Kubernetes?

A service is a REST object in Kubernetes whose definition can be posted to Kubernetes apiServer on the Kubernetes master to create a new instance.

How do I authenticate a process in a Kubernetes pod?

Processes in containers inside pods can also contact the apiserver. When they do, they are authenticated as a particular Service Account (for example, default ). You need to have a Kubernetes cluster, and the kubectl command-line tool must be configured to communicate with your cluster.

What is serviceaccounttoken in Kubernetes?

A ServiceAccountToken acquired from kube-apiserver via TokenRequest API. It will expire after 1 hour by default or when the pod is deleted. It is bound to the pod and has kube-apiserver as the audience. A ConfigMap containing a CA bundle used for verifying connections to the kube-apiserver.