What is the secret limit in k8s?
The limit for secrets is 1MB. I think 1MB is on the small side for what some people might want, and suggest we consider up to 5MB. The main questions are what the upper limit on a single piece of config data is and what granularity we want to quota total storage on.A Secret is an object that contains a small amount of sensitive data such as a password, a token, or a key. Such information might otherwise be put in a Pod specification or in a container image. Using a Secret means that you don't need to include confidential data in your application code.More specifically, Kubernetes is designed to accommodate configurations that meet all of the following criteria: No more than 110 pods per node. No more than 5,000 nodes.

How secure are k8s secrets : Kubernetes Secrets stores usernames and passwords as base-64 encoded strings. Although obscured from casual browsing, text encoding isn't secure. Further, stored secrets are only visible within the cluster where the secrets are kept.

What are the default limits in k8s

Kubernetes doesn't provide default resource limits out-of-the-box. This means that unless you explicitly define limits, your containers can consume unlimited CPU and memory. Pods deployed after this LimitRange, without their own CPU or memory limit, will have these limits applied to them automatically.

What is limit range in Kubernetes : A LimitRange is a policy to constrain the resource allocations (limits and requests) that you can specify for each applicable object kind (such as Pod or PersistentVolumeClaim) in a namespace.

In Kubernetes, a Secret is an object that stores sensitive information, such as passwords, OAuth tokens, and SSH keys. Secrets give you more control over how sensitive information is used and reduces the risk of accidental exposure.

When you create a Secret with kubectl create -f secret. yaml , Kubernetes stores it in etcd. The Secrets are stored in clear in etcd unless you define an encryption provider. When you define the provider, before the Secret is stored in etcd and after the values are submitted to the API, the Secrets are encrypted.

What is the default limit of k8s

Kubernetes doesn't provide default resource limits out-of-the-box. This means that unless you explicitly define limits, your containers can consume unlimited CPU and memory.Inadequate Access Controls. One of the primary security challenges with Secrets is the misconfiguration of access controls. If not properly configured, unauthorized users or pods could gain access to sensitive information and lead to a potential data breach, compromising the entire system.Better Alternatives Exist:

Services like HashiCorp Vault or AWS Secrets Manager are purpose-built for secure secret management. These services provide robust features like encryption at rest, access controls, and audit logs, ensuring a higher level of security compared to raw Kubernetes secrets.

If it is set to 0 , it means no resource limit for the container. In particular, if you set limits without specifying requests , Kubernetes considers the value of requests is the same as that of limits by default.

Should I set limits on Kubernetes : To maximize the efficient utilization of your Kubernetes cluster, it is critical to set resource limits and requests correctly. Setting your limits too low on an application will cause problems. For example, if your memory limits are too low, Kubernetes is bound to kill your application for violating its limits.

What is the size limit of cluster in Kubernetes : Clusters can have up to 512 nodes. A single worker node can have up to 110 pods. All worker nodes for a cluster are provisioned in the same datacenter region. Network throughput is capped at 10 Gbps for CPU-Optimized worker nodes with Premium CPUs.

How many types of secrets are there in Kubernetes

The Secret resource contains two distinct maps: data : used to store arbitrary data, encoded using base64. stringData : allows you to provide Secret data as unencoded strings.

What is the difference between ConfigMaps and Secrets in Kubernetes ConfigMaps are used to store non-sensitive configuration data, such as environment variables or configuration files. Secrets, on the other hand, are designed for storing sensitive information like passwords, API keys, or TLS certificates.AWS Secrets Manager is a popular external secret management service supported by Kubernetes that can provide enhanced secrets protection. Secrets Manager provides a robust and enterprise-grade secret storage solution compared to native Kubernetes Secrets.

What is the limit of pod storage in k8s : To limit ephemeral storage usage per Pod in Kubernetes, you can set resource requests and limits for each container in the Pod's definition. This can be done using the ephemeral-storage resource type within the resources section of a container definition.