in vars.yml if sas_install_java is false, it looks to sasenv_java_home for java 8. if no path is listed it looks to the environment variable $JAVA_HOME, if that isn't found the deployment will stop. (This basic text is provided in vars.ym). Try creating JAVA_HOME= pointing to java 8 and keeping the ES_JAVA_HOME for ElasticSearch or let the playbook install java (sas_install_java: true).
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