Explain environment variables

README.md

@@ -22,10 +22,77 @@ In addition, a docker-compose file is provided to launch the containers mentione
 * [Wazuh documentation for Docker](https://documentation.wazuh.com/current/docker/index.html)
 * [Docker hub](https://hub.docker.com/u/wazuh)
 
+
 ### Setup SSL certificate and Basic Authentication
 
 Before starting the environment it is required to provide an SSL certificate (or just generate one self-signed) and setup the basic auth.
 
+Documentation on how to provide these two can be found at [nginx_conf/README.md](nginx_conf/README.md).
+
+
+## Environment Variables
+
+Default values are included when available.
+
+### Wazuh
+```
+API_USER="foo"			# Wazuh API username
+API_PASS="bar"			# Wazuh API password
+```
+
+### Nginx
+```
+NGINX_NAME="foo"		# HTTP basic auth username
+NGINX_PWD="bar"			# HTTP basic auth password
+```
+
+### Elasticsearch
+```
+ELASTIC_CLUSTER="false"					#
+CLUSTER_NAME="wazuh"					#
+CLUSTER_NODE_MASTER="false"				#
+CLUSTER_NODE_DATA="true"				#
+CLUSTER_NODE_INGEST="true"				#
+CLUSTER_NODE_NAME="wazuh-elasticsearch"			#
+CLUSTER_MASTER_NODE_NAME="master-node"			#
+CLUSTER_MEMORY_LOCK="true"				#
+CLUSTER_DISCOVERY_SERVICE="wazuh-elasticsearch"		#
+CLUSTER_NUMBER_OF_MASTERS="2"				#
+CLUSTER_MAX_NODES="1"					#
+CLUSTER_DELAYED_TIMEOUT="1m"				#
+CLUSTER_INITIAL_MASTER_NODES="wazuh-elasticsearch"	#
+```
+
+### Kibana
+```
+PATTERN=""			#
+CHECKS_PATTERN=""		#
+CHECKS_TEMPLATE=""		#
+CHECKS_API=""			#
+CHECKS_SETUP=""			#
+EXTENSIONS_PCI=""		#
+EXTENSIONS_GDPR=""		#
+EXTENSIONS_AUDIT=""		#
+EXTENSIONS_OSCAP=""		#
+EXTENSIONS_CISCAT=""		#
+EXTENSIONS_AWS=""		#
+EXTENSIONS_VIRUSTOTAL=""	#
+EXTENSIONS_OSQUERY=""		#
+APP_TIMEOUT=""			#
+WAZUH_SHARDS=""			#
+WAZUH_REPLICAS=""		#
+WAZUH_VERSION_SHARDS=""		#
+WAZUH_VERSION_REPLICAS=""	#
+IP_SELECTOR=""			#
+IP_IGNORE=""			#
+XPACK_RBAC_ENABLED=""		#
+WAZUH_MONITORING_ENABLED=""	#
+WAZUH_MONITORING_FREQUENCY=""	#
+WAZUH_MONITORING_SHARDS=""	#
+WAZUH_MONITORING_REPLICAS=""	#
+ADMIN_PRIVILEGES=""		#
+```
+
 ## Directory structure
 
     wazuh-docker