Kubernetes secret types

1. What are secrets in Kubernetes?
2. What is an opaque secret?
3. How do you encode secrets in Kubernetes?
4. Is k8s secret is secure?
5. What is the difference between ConfigMap and secret?
6. Where are Kubernetes secrets stored?
7. Does Kubernetes encrypt secrets at rest?
8. Do Kubernetes secrets need to be base64 encoded?
9. What is secret yaml?
10. What is Yaml in Kubernetes?
11. What is Kubernetes ingress?
12. What is the difference between NodePort and LoadBalancer Kubernetes?

What are secrets in Kubernetes?

Secrets can be defined as Kubernetes objects used to store sensitive data such as user name and passwords with encryption. There are multiple ways of creating secrets in Kubernetes. Creating from txt files. Creating from yaml file.

What is an opaque secret?

type: Opaque means that from kubernetes's point of view the contents of this Secret is unstructured, it can contain arbitrary key-value pairs. In contrast, there is the Secret storing ServiceAccount credentials, or the ones used as ImagePullSecret .

How do you encode secrets in Kubernetes?

When using definition files, you can add the data in a base64 encoded format or plain text form. Kubernetes encodes the Secret data in base64 format. When you need to reveal a Secret text, you must base64-decode it. To enable containers to access Secrets, you have the option to mount the Secret as a volume.

Is k8s secret is secure?

To this end, Kubernetes provides an object called Secret, which you can use to store sensitive data. ... Placing sensitive info into a secret object does not automatically make it secure. By default, data in Kubernetes secrets is stored in Base64 encoding, which is practically the same as plaintext.

What is the difference between ConfigMap and secret?

The major difference is, Secrets store data in base64 format meanwhile ConfigMaps store data in a plain text. If you have some critical data like, keys, passwords, service accounts credentials, db connection string, etc then you should always go for Secrets rather than Configs.

Where are Kubernetes secrets stored?

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.

Does Kubernetes encrypt secrets at rest?

By default, the secret data is stored in plaintext in etcd. Kubernetes does support encryption at rest for the data in etcd, but the key for that encryption is stored in plaintext in the config file on the master nodes.

Do Kubernetes secrets need to be base64 encoded?

Kubernetes stores secrets as base64 encoded strings and encrypts the data on disk. In order to save a secret in Kubernetes it must be converted to a base64 string.

What is secret yaml?

The configuration. yaml file is a plain-text file, thus it is readable by anyone who has access to the file. The file contains passwords and API tokens which need to be redacted if you want to share your configuration. secret you can remove any private information from your configuration files. ...

What is Yaml in Kubernetes?

If you've been doing software development for a while, particularly with Kubernetes or containers, you've probably run into a YAML file. YAML — or, “Yet Another Markup Language” — is a text format used to specify data related to configuration. ... You explore an example YAML file that's used in Kubernetes.

What is Kubernetes ingress?

Kubernetes Ingress is an API object that provides routing rules to manage external users' access to the services in a Kubernetes cluster, typically via HTTPS/HTTP. With Ingress, you can easily set up rules for routing traffic without creating a bunch of Load Balancers or exposing each service on the node.

What is the difference between NodePort and LoadBalancer Kubernetes?

NodePort wins on simplicity, but you need to open firewall rules to allow access to ports 30,000 to 32,767, and know the IPs of the individual worker nodes. LoadBalancer when on a public cloud, or supported by MetalLB, works great with the service being able to control the exact port it wants to use.