A Practical Guide to Kubernetes/

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Injecting Configurations from Multiple Files

Injecting Configurations from Multiple Files

Learn how to inject configurations from multiple files and directories.

We'll cover the following...

Creating a ConfigMap from multiple files

Let's see what happens when we execute the following commands:

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kubectl create cm my-config \
    --from-file=cm/prometheus-conf.yml \
    --from-file=cm/prometheus.yml
kubectl create -f cm/alpine.yml
#Run the following command separately
kubectl exec -it alpine -- \
    ls /etc/config

We create a ConfigMap with two files and the same Pod based on the alpine.yml definition. Finally, we output the list of files from the /etc/config directory inside the Pod’s only container. The output of the latter command is as follows:

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prometheus-conf.yml  prometheus.yml

We can ...