Kubernetes and Secrets

This is going to be a small post since it has to deal with kubernetes and secrets. Yet it is a very useful once since adding secrets is so common yet so easy to forget (guilty as charged).

So we will cover username and password, key/values, file uploading, secrets.

Upload username and password using command line.

kubectl create secret generic accountpassword --from-literal=username=yourusername --from-literal=password=yourpassword

Upload just a key

kubectl create secret generic application-key --from-literal=key=yourusername

Upload username and password through files

printf "yourusername" > username.txt
printf "yourpassword" > password.txt
kubectl create secret generic accountpassword --from-file=./username.txt --from-file=./password.txt

Then let’s upload a secret. Be aware that this secret can be used with your secret rules.

kubectl create secret tls your-server-tls --key ./privkey.pem --cert ./fullchain.pem

Another step is to upload a file. This file can then be used by being mounted on your container.

kubectl create secret generic secretfile --from-file=key.json=./secret_json.yaml

Then you can mount it to the pod

      - name: secret-json
          secretName: secretfile
      - name: containername
        - name: secret-json
          mountPath: /var/secrets/json

That’s all! The full docs can be found here.

Published on System Code Geeks with permission by Emmanouil Gkatziouras, partner at our SCG program. See the original article here: Kubernetes and Secrets

Opinions expressed by System Code Geeks contributors are their own.

Emmanouil Gkatziouras

I am a versatile software engineer with experience in a wide variety of applications/services. I am enthusiastic about new projects, embracing new technologies, and getting to know people in the field of software.
Notify of

This site uses Akismet to reduce spam. Learn how your comment data is processed.

Inline Feedbacks
View all comments
Back to top button