Secrets allow applications to not hardcode usernames, passwords or additional information such as hostnames, IP addresses or other protected/sensitive information.
Create a Secret in Kubernetes
It’s simple to create a secret in Kubernetes
. It can either be done --from-file or --from-literal.
Option 1: From a File
echo -n 'adminuser' > ./username.txt
echo -n 'jf392hf782hf932h' > ./password.txt
kubectl create secret generic admin-user-pass \
--from-file=./username.txt \
--from-file=./password.txt
The result will be something like:
secret/admin-user-pass created
By default, the key name is the filename, but we could also be explicit about this:
kubectl create secret generic admin-user-pass \
--from-file=username=./username.txt \
--from-file=password=./password.txt
Option 2: From a Literal
We don’t have to create a file to create a secret, we can also create one on the fly:
kubectl create secret generic admin-user-pass \
--from-literal=username=adminuser \
--from-literal=password='jf392hf782hf932h'
The result will be something like:
secret/admin-user-pass created
