Disable basic-auth via init-container when deploying elasticsearch via the cloud-on-k8s operator

disable-auth.sh

#!/usr/bin/env bash

set -x
set -euo pipefail

# download yq-binary and only start as soon as the binary is present
until curl \
        -L -o yq \
        https://github.com/mikefarah/yq/releases/download/3.1.2/yq_linux_amd64 \
    ; do sleep 1 ; done

chmod +x yq

mv /usr/share/elasticsearch/config/elasticsearch.yml /usr/share/elasticsearch/config/elasticsearch.yml.orig

# replace true to false in elasticsearch config: xpack.security.enabled
./yq w --tag '!!str' /usr/share/elasticsearch/config/elasticsearch.yml.orig 'xpack.security.enabled' false > /usr/share/elasticsearch/config/elasticsearch.yml