Setup elasticsearch built-in users via Kubernetes job

apiVersion: batch/v1
kind: Job
metadata:
  name: {{ stack_name }}-security-setup-users
spec:
  template:
    spec:
      containers:
      - name: update-credentials
        image: radial/busyboxplus
        command: ["/bin/sh", "-c"]
        args:
        {% for user in global.security.users %}
        {%- if user.to_setup -%}
        - "curl -s -u ${ELASTIC_USERNAME}:${ELASTIC_PASSWORD} -H 'Content-Type: application/json' ${ELASTICSEARCH_URL}/_security/user/{{ user.name }}/_password --data \"{\\\"password\\\" : \\\"{{ user.password }}\\\"}\""
        {%- endif -%}
        {%- endfor %}
        env:
        - name: ELASTICSEARCH_URL
          value: "http://{{ elasticsearch.clusterName }}-{{ elasticsearch.clientNodeGroup }}:9200"
        {% for user in global.security.users %}
        - name: {{ user.name | upper }}_USERNAME
          valueFrom:
            secretKeyRef:
              name: {{ stack_name }}-{{ user.name }}-credentials
              key: username
        - name: {{ user.name | upper }}_PASSWORD
          valueFrom:
            secretKeyRef:
              name: {{ stack_name }}-{{ user.name }}-credentials
              key: password
          {% endfor %}
      restartPolicy: Never
  backoffLimit: 4