If any configuration values are sensitive use Secret instead ConfigMap. ConfigMap stores data in key, value format. ConfigMapsĬonfigMaps are used to separate container images and their custom configurations so that images are portable and can be run in any environment providing appropriate configuration. mysecret already created) and then mount the secret volume to the container target location that is similar to mounting any other volumes. 9G 1 % /run/secrets/kubernetes.io/serviceaccount tmpfs 994M 0 994M 0 % /proc/acpi tmpfs 994M 0 994M 0 % /proc/scsi tmpfs 994M 0 994M 0 % /sys/firmwareĪdd a volume section with type secret and with secretName(ie. 1G 58 % /etc/hosts shm 64M 0 64M 0 % /dev/shm tmpfs 1. How to verify the secrets kubectl exec -it nginx bash -> login to that particular pod df -h Filesystem Size Used Avail Use% Mounted on overlay 9. Create Secret using YAML manifesto files apiVersion: v1 kind: Secret metadata: name: mysecret type: Opaque data: USER_NAME: YWRtaW4= PASSWORD: MWYyZDFlMmU2N2Rm Create using kubectl create kubectl create -f secret.yamlĭeploy Secrets in Pods kubectl create -f deploy.yaml apiVersion: v1 kind: Pod metadata: name: nginx spec: containers: - name: nginx image: nginx volumeMounts: - name: secret-volume mountPath: /etc/secret readOnly: true volumes: - name: secret-volume secret: secretName: mysecret Pod status controlplane $ kubectl get pod Since Secrets will be created outside of pods and containers, these can be used any number of times. Secrets encoded and stored inside Kubernetes master ETCD data store. Secrets are Kubernetes objects to manage a small amount of sensitive data like passwords, keys, and tokens with less than 1MB in size. If you have not yet checked the previous parts of this series, please go ahead and check this □ Link Kubernetes Secrets After reading this post you will be understanding the high level of Kubernetes Secrets and ConfigMap, its advantages of this, and basic kubectl commands related to Secret and ConfigMap
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