Create configmaps from files recursively

Unfortunately, reflecting directory structure in configmap is not supported currently. Workaround is to express directory hierarchy like this:

apiVersion: v1kind: ConfigMapmetadata:   name: testconfigdata:  file1: |    This is file1  file2: |    This is file2 in subdir directory---apiVersion: v1kind: Podmetadata:  name: testpodspec:  restartPolicy: Never  containers:    - name: test-container      image: gcr.io/google_containers/busybox      command: [ "/bin/sh","-c", "sleep 1000" ]      volumeMounts:      - name: config-volume        mountPath: /etc/config  volumes:    - name: config-volume      configMap:        name: testconfig        items:        - key: file2          path: subdir/file2        - key: file1          path: file1

An automatable workaround: tar your files, map the tar configmap volume file in /tmp, and untar it at the start of the container.

Create the tar:

tar -cvf conf-d.tar ./conf.dkubectl create configmap conf-d --from-file=conf-d.tarrm conf-d.tar

and in your pod.yml, add the tar -xf before your command, or before your default image command:

    command: [ "/bin/sh","-c", "tar -xf /tmp/conf-d.tar -C /etc/ && sleep 1000" ]    volumeMounts:      - mountPath: /tmp/conf-d.tar        name: nginx-config-volume        subPath: conf-d.tar