Merge branch '188-elasticsearch' into 'master'

elasticsearch credentials

Closes #188

See merge request cyber5k/mistborn!87

scripts/services/elasticsearch/init.sh

@@ -11,6 +11,11 @@ mkdir -p /opt/mistborn_volumes/extra/elasticsearch/init/ >/dev/null 2>&1
 chmod -R +x /opt/mistborn_volumes/extra/elasticsearch/init/
 cp /opt/mistborn/scripts/services/elasticsearch/files/internal_users.yml /opt/mistborn_volumes/extra/elasticsearch/init/
 
-ELASTICSEARCH_MISTBORN_HASHED=$(docker run --rm amazon/opendistro-for-elasticsearch:1.12.0 bash /usr/share/elasticsearch/plugins/opendistro_security/tools/hash.sh -p ${MISTBORN_DEFAULT_PASSWORD} | tr -d '\n')
+ELASTICSEARCH_MISTBORN_HASHED="$(docker run --rm amazon/opendistro-for-elasticsearch:1.12.0 bash /usr/share/elasticsearch/plugins/opendistro_security/tools/hash.sh -p ${MISTBORN_DEFAULT_PASSWORD} | tr -d '\n')"
+
+if [[ -z "${ELASTICSEARCH_MISTBORN_HASHED}" ]]; then 
+    echo "Elasticsearch password hash not generated properly"
+    exit 1;
+fi
 
 sed -i "s|__MISTBORN_HASH__|${ELASTICSEARCH_MISTBORN_HASHED}|" /opt/mistborn_volumes/extra/elasticsearch/init/internal_users.yml