From f70f2a1e44621e4f6bf307b2065b84075060b15a Mon Sep 17 00:00:00 2001
From: Alexey Pustovalov <alexey.pustovalov@zabbix.com>
Date: Thu, 18 Feb 2021 08:22:15 -0500
Subject: [PATCH 1/3] Added ListenIP for Proxy and Server

---
 proxy-mysql/alpine/docker-entrypoint.sh   | 1 +
 proxy-mysql/centos/docker-entrypoint.sh   | 1 +
 proxy-mysql/ubuntu/docker-entrypoint.sh   | 1 +
 proxy-sqlite3/alpine/docker-entrypoint.sh | 1 +
 proxy-sqlite3/centos/docker-entrypoint.sh | 1 +
 proxy-sqlite3/ubuntu/docker-entrypoint.sh | 1 +
 server-mysql/alpine/docker-entrypoint.sh  | 1 +
 server-mysql/centos/docker-entrypoint.sh  | 1 +
 server-mysql/ubuntu/docker-entrypoint.sh  | 1 +
 server-pgsql/alpine/docker-entrypoint.sh  | 1 +
 server-pgsql/centos/docker-entrypoint.sh  | 1 +
 server-pgsql/ubuntu/docker-entrypoint.sh  | 1 +
 12 files changed, 12 insertions(+)

diff --git a/proxy-mysql/alpine/docker-entrypoint.sh b/proxy-mysql/alpine/docker-entrypoint.sh
index b63fed074..458b5283f 100755
--- a/proxy-mysql/alpine/docker-entrypoint.sh
+++ b/proxy-mysql/alpine/docker-entrypoint.sh
@@ -286,6 +286,7 @@ update_zbx_config() {
         update_config_var $ZBX_CONFIG "HostnameItem" "${ZBX_HOSTNAMEITEM}"
     fi
 
+    update_config_var $ZBX_CONFIG "ListenIP" "${ZBX_LISTENIP}"
     update_config_var $ZBX_CONFIG "ListenPort" "${ZBX_LISTENPORT}"
 
     update_config_var $ZBX_CONFIG "SourceIP" "${ZBX_SOURCEIP}"
diff --git a/proxy-mysql/centos/docker-entrypoint.sh b/proxy-mysql/centos/docker-entrypoint.sh
index 2df57fdd5..5b234b394 100755
--- a/proxy-mysql/centos/docker-entrypoint.sh
+++ b/proxy-mysql/centos/docker-entrypoint.sh
@@ -286,6 +286,7 @@ update_zbx_config() {
         update_config_var $ZBX_CONFIG "HostnameItem" "${ZBX_HOSTNAMEITEM}"
     fi
 
+    update_config_var $ZBX_CONFIG "ListenIP" "${ZBX_LISTENIP}"
     update_config_var $ZBX_CONFIG "ListenPort" "${ZBX_LISTENPORT}"
 
     update_config_var $ZBX_CONFIG "SourceIP" "${ZBX_SOURCEIP}"
diff --git a/proxy-mysql/ubuntu/docker-entrypoint.sh b/proxy-mysql/ubuntu/docker-entrypoint.sh
index 4c48053e0..7f28723cc 100755
--- a/proxy-mysql/ubuntu/docker-entrypoint.sh
+++ b/proxy-mysql/ubuntu/docker-entrypoint.sh
@@ -286,6 +286,7 @@ update_zbx_config() {
         update_config_var $ZBX_CONFIG "HostnameItem" "${ZBX_HOSTNAMEITEM}"
     fi
 
+    update_config_var $ZBX_CONFIG "ListenIP" "${ZBX_LISTENIP}"
     update_config_var $ZBX_CONFIG "ListenPort" "${ZBX_LISTENPORT}"
 
     update_config_var $ZBX_CONFIG "SourceIP" "${ZBX_SOURCEIP}"
diff --git a/proxy-sqlite3/alpine/docker-entrypoint.sh b/proxy-sqlite3/alpine/docker-entrypoint.sh
index bfd031b34..2173886fb 100755
--- a/proxy-sqlite3/alpine/docker-entrypoint.sh
+++ b/proxy-sqlite3/alpine/docker-entrypoint.sh
@@ -124,6 +124,7 @@ update_zbx_config() {
         update_config_var $ZBX_CONFIG "HostnameItem" "${ZBX_HOSTNAMEITEM}"
     fi
 
+    update_config_var $ZBX_CONFIG "ListenIP" "${ZBX_LISTENIP}"
     update_config_var $ZBX_CONFIG "ListenPort" "${ZBX_LISTENPORT}"
 
     update_config_var $ZBX_CONFIG "SourceIP" "${ZBX_SOURCEIP}"
diff --git a/proxy-sqlite3/centos/docker-entrypoint.sh b/proxy-sqlite3/centos/docker-entrypoint.sh
index bfd031b34..2173886fb 100755
--- a/proxy-sqlite3/centos/docker-entrypoint.sh
+++ b/proxy-sqlite3/centos/docker-entrypoint.sh
@@ -124,6 +124,7 @@ update_zbx_config() {
         update_config_var $ZBX_CONFIG "HostnameItem" "${ZBX_HOSTNAMEITEM}"
     fi
 
+    update_config_var $ZBX_CONFIG "ListenIP" "${ZBX_LISTENIP}"
     update_config_var $ZBX_CONFIG "ListenPort" "${ZBX_LISTENPORT}"
 
     update_config_var $ZBX_CONFIG "SourceIP" "${ZBX_SOURCEIP}"
diff --git a/proxy-sqlite3/ubuntu/docker-entrypoint.sh b/proxy-sqlite3/ubuntu/docker-entrypoint.sh
index 9dc4e291e..f42a19189 100755
--- a/proxy-sqlite3/ubuntu/docker-entrypoint.sh
+++ b/proxy-sqlite3/ubuntu/docker-entrypoint.sh
@@ -124,6 +124,7 @@ update_zbx_config() {
         update_config_var $ZBX_CONFIG "HostnameItem" "${ZBX_HOSTNAMEITEM}"
     fi
 
+    update_config_var $ZBX_CONFIG "ListenIP" "${ZBX_LISTENIP}"
     update_config_var $ZBX_CONFIG "ListenPort" "${ZBX_LISTENPORT}"
 
     update_config_var $ZBX_CONFIG "SourceIP" "${ZBX_SOURCEIP}"
diff --git a/server-mysql/alpine/docker-entrypoint.sh b/server-mysql/alpine/docker-entrypoint.sh
index 77ed8206d..446b37b89 100755
--- a/server-mysql/alpine/docker-entrypoint.sh
+++ b/server-mysql/alpine/docker-entrypoint.sh
@@ -270,6 +270,7 @@ update_zbx_config() {
 
     ZBX_CONFIG=$ZABBIX_ETC_DIR/zabbix_server.conf
 
+    update_config_var $ZBX_CONFIG "ListenIP" "${ZBX_LISTENIP}"
     update_config_var $ZBX_CONFIG "ListenPort" "${ZBX_LISTENPORT}"
 
     update_config_var $ZBX_CONFIG "SourceIP" "${ZBX_SOURCEIP}"
diff --git a/server-mysql/centos/docker-entrypoint.sh b/server-mysql/centos/docker-entrypoint.sh
index 77ed8206d..446b37b89 100755
--- a/server-mysql/centos/docker-entrypoint.sh
+++ b/server-mysql/centos/docker-entrypoint.sh
@@ -270,6 +270,7 @@ update_zbx_config() {
 
     ZBX_CONFIG=$ZABBIX_ETC_DIR/zabbix_server.conf
 
+    update_config_var $ZBX_CONFIG "ListenIP" "${ZBX_LISTENIP}"
     update_config_var $ZBX_CONFIG "ListenPort" "${ZBX_LISTENPORT}"
 
     update_config_var $ZBX_CONFIG "SourceIP" "${ZBX_SOURCEIP}"
diff --git a/server-mysql/ubuntu/docker-entrypoint.sh b/server-mysql/ubuntu/docker-entrypoint.sh
index 15d5eebea..1595dd37b 100755
--- a/server-mysql/ubuntu/docker-entrypoint.sh
+++ b/server-mysql/ubuntu/docker-entrypoint.sh
@@ -270,6 +270,7 @@ update_zbx_config() {
 
     ZBX_CONFIG=$ZABBIX_ETC_DIR/zabbix_server.conf
 
+    update_config_var $ZBX_CONFIG "ListenIP" "${ZBX_LISTENIP}"
     update_config_var $ZBX_CONFIG "ListenPort" "${ZBX_LISTENPORT}"
 
     update_config_var $ZBX_CONFIG "SourceIP" "${ZBX_SOURCEIP}"
diff --git a/server-pgsql/alpine/docker-entrypoint.sh b/server-pgsql/alpine/docker-entrypoint.sh
index 9877ff0a3..eb075cd05 100755
--- a/server-pgsql/alpine/docker-entrypoint.sh
+++ b/server-pgsql/alpine/docker-entrypoint.sh
@@ -278,6 +278,7 @@ update_zbx_config() {
 
     ZBX_CONFIG=$ZABBIX_ETC_DIR/zabbix_server.conf
 
+    update_config_var $ZBX_CONFIG "ListenIP" "${ZBX_LISTENIP}"
     update_config_var $ZBX_CONFIG "ListenPort" "${ZBX_LISTENPORT}"
 
     update_config_var $ZBX_CONFIG "SourceIP" "${ZBX_SOURCEIP}"
diff --git a/server-pgsql/centos/docker-entrypoint.sh b/server-pgsql/centos/docker-entrypoint.sh
index 9877ff0a3..eb075cd05 100755
--- a/server-pgsql/centos/docker-entrypoint.sh
+++ b/server-pgsql/centos/docker-entrypoint.sh
@@ -278,6 +278,7 @@ update_zbx_config() {
 
     ZBX_CONFIG=$ZABBIX_ETC_DIR/zabbix_server.conf
 
+    update_config_var $ZBX_CONFIG "ListenIP" "${ZBX_LISTENIP}"
     update_config_var $ZBX_CONFIG "ListenPort" "${ZBX_LISTENPORT}"
 
     update_config_var $ZBX_CONFIG "SourceIP" "${ZBX_SOURCEIP}"
diff --git a/server-pgsql/ubuntu/docker-entrypoint.sh b/server-pgsql/ubuntu/docker-entrypoint.sh
index b8e0d885d..4305bd2c9 100755
--- a/server-pgsql/ubuntu/docker-entrypoint.sh
+++ b/server-pgsql/ubuntu/docker-entrypoint.sh
@@ -278,6 +278,7 @@ update_zbx_config() {
 
     ZBX_CONFIG=$ZABBIX_ETC_DIR/zabbix_server.conf
 
+    update_config_var $ZBX_CONFIG "ListenIP" "${ZBX_LISTENIP}"
     update_config_var $ZBX_CONFIG "ListenPort" "${ZBX_LISTENPORT}"
 
     update_config_var $ZBX_CONFIG "SourceIP" "${ZBX_SOURCEIP}"

From 07418f614f72f4eddf360db89e885e426319cde5 Mon Sep 17 00:00:00 2001
From: Alexey Pustovalov <alexey.pustovalov@zabbix.com>
Date: Thu, 18 Feb 2021 08:26:58 -0500
Subject: [PATCH 2/3] Review Java Gateway startup script

---
 .../alpine/conf/usr/sbin/zabbix_java_gateway  | 23 +++++++++++--------
 .../centos/conf/usr/sbin/zabbix_java_gateway  | 23 +++++++++++--------
 .../ubuntu/conf/usr/sbin/zabbix_java_gateway  | 23 +++++++++++--------
 3 files changed, 42 insertions(+), 27 deletions(-)

diff --git a/java-gateway/alpine/conf/usr/sbin/zabbix_java_gateway b/java-gateway/alpine/conf/usr/sbin/zabbix_java_gateway
index 2da696885..13c5c18cc 100755
--- a/java-gateway/alpine/conf/usr/sbin/zabbix_java_gateway
+++ b/java-gateway/alpine/conf/usr/sbin/zabbix_java_gateway
@@ -1,26 +1,31 @@
+
 JAVA=${JAVA:-"/usr/bin/java"}
-DAEMON=${DAEMON:-"/usr/sbin/zabbix_java"}
 
 JAVA_OPTIONS="-server $JAVA_OPTIONS"
 JAVA_OPTIONS="$JAVA_OPTIONS -Dlogback.configurationFile=/etc/zabbix/zabbix_java_gateway_logback.xml"
 
-cd $DAEMON
+cd /usr/sbin/zabbix_java
 
-CLASSPATH="$DAEMON/lib"
-for jar in `find lib bin -name "*.jar"`; do
-    if [ $jar != *junit* ]; then
-        CLASSPATH="$CLASSPATH:$DAEMON/$jar"
-    fi
+CLASSPATH="lib"
+for jar in `find lib bin ext_lib -name "*.jar"`; do
+    CLASSPATH="$CLASSPATH:$jar"
 done
 
-ZABBIX_OPTIONS=""
+if [ -n "$ZBX_LISTEN_IP" ]; then
+    ZABBIX_OPTIONS="$ZABBIX_OPTIONS -Dzabbix.listenIP=$ZBX_LISTEN_IP"
+fi
+if [ -n "$ZBX_LISTEN_PORT" ]; then
+    ZABBIX_OPTIONS="$ZABBIX_OPTIONS -Dzabbix.listenPort=$ZBX_LISTEN_PORT"
+fi
 if [ -n "$ZBX_START_POLLERS" ]; then
     ZABBIX_OPTIONS="$ZABBIX_OPTIONS -Dzabbix.startPollers=$ZBX_START_POLLERS"
 fi
 if [ -n "$ZBX_TIMEOUT" ]; then
-    ZABBIX_OPTIONS="$ZABBIX_OPTIONS -Dzabbix.timeout=$ZBX_TIMEOUT -Dsun.rmi.transport.tcp.responseTimeout=${ZBX_TIMEOUT}000"
+    ZABBIX_OPTIONS="$ZABBIX_OPTIONS -Dzabbix.timeout=$ZBX_TIMEOUT"
 fi
 
+tcp_timeout=${ZBX_TIMEOUT:=3}000
+ZABBIX_OPTIONS="$ZABBIX_OPTIONS -Dsun.rmi.transport.tcp.responseTimeout=$tcp_timeout"
 
 COMMAND_LINE="$JAVA $JAVA_OPTIONS -classpath $CLASSPATH $ZABBIX_OPTIONS com.zabbix.gateway.JavaGateway"
 
diff --git a/java-gateway/centos/conf/usr/sbin/zabbix_java_gateway b/java-gateway/centos/conf/usr/sbin/zabbix_java_gateway
index 2da696885..13c5c18cc 100755
--- a/java-gateway/centos/conf/usr/sbin/zabbix_java_gateway
+++ b/java-gateway/centos/conf/usr/sbin/zabbix_java_gateway
@@ -1,26 +1,31 @@
+
 JAVA=${JAVA:-"/usr/bin/java"}
-DAEMON=${DAEMON:-"/usr/sbin/zabbix_java"}
 
 JAVA_OPTIONS="-server $JAVA_OPTIONS"
 JAVA_OPTIONS="$JAVA_OPTIONS -Dlogback.configurationFile=/etc/zabbix/zabbix_java_gateway_logback.xml"
 
-cd $DAEMON
+cd /usr/sbin/zabbix_java
 
-CLASSPATH="$DAEMON/lib"
-for jar in `find lib bin -name "*.jar"`; do
-    if [ $jar != *junit* ]; then
-        CLASSPATH="$CLASSPATH:$DAEMON/$jar"
-    fi
+CLASSPATH="lib"
+for jar in `find lib bin ext_lib -name "*.jar"`; do
+    CLASSPATH="$CLASSPATH:$jar"
 done
 
-ZABBIX_OPTIONS=""
+if [ -n "$ZBX_LISTEN_IP" ]; then
+    ZABBIX_OPTIONS="$ZABBIX_OPTIONS -Dzabbix.listenIP=$ZBX_LISTEN_IP"
+fi
+if [ -n "$ZBX_LISTEN_PORT" ]; then
+    ZABBIX_OPTIONS="$ZABBIX_OPTIONS -Dzabbix.listenPort=$ZBX_LISTEN_PORT"
+fi
 if [ -n "$ZBX_START_POLLERS" ]; then
     ZABBIX_OPTIONS="$ZABBIX_OPTIONS -Dzabbix.startPollers=$ZBX_START_POLLERS"
 fi
 if [ -n "$ZBX_TIMEOUT" ]; then
-    ZABBIX_OPTIONS="$ZABBIX_OPTIONS -Dzabbix.timeout=$ZBX_TIMEOUT -Dsun.rmi.transport.tcp.responseTimeout=${ZBX_TIMEOUT}000"
+    ZABBIX_OPTIONS="$ZABBIX_OPTIONS -Dzabbix.timeout=$ZBX_TIMEOUT"
 fi
 
+tcp_timeout=${ZBX_TIMEOUT:=3}000
+ZABBIX_OPTIONS="$ZABBIX_OPTIONS -Dsun.rmi.transport.tcp.responseTimeout=$tcp_timeout"
 
 COMMAND_LINE="$JAVA $JAVA_OPTIONS -classpath $CLASSPATH $ZABBIX_OPTIONS com.zabbix.gateway.JavaGateway"
 
diff --git a/java-gateway/ubuntu/conf/usr/sbin/zabbix_java_gateway b/java-gateway/ubuntu/conf/usr/sbin/zabbix_java_gateway
index 2da696885..13c5c18cc 100755
--- a/java-gateway/ubuntu/conf/usr/sbin/zabbix_java_gateway
+++ b/java-gateway/ubuntu/conf/usr/sbin/zabbix_java_gateway
@@ -1,26 +1,31 @@
+
 JAVA=${JAVA:-"/usr/bin/java"}
-DAEMON=${DAEMON:-"/usr/sbin/zabbix_java"}
 
 JAVA_OPTIONS="-server $JAVA_OPTIONS"
 JAVA_OPTIONS="$JAVA_OPTIONS -Dlogback.configurationFile=/etc/zabbix/zabbix_java_gateway_logback.xml"
 
-cd $DAEMON
+cd /usr/sbin/zabbix_java
 
-CLASSPATH="$DAEMON/lib"
-for jar in `find lib bin -name "*.jar"`; do
-    if [ $jar != *junit* ]; then
-        CLASSPATH="$CLASSPATH:$DAEMON/$jar"
-    fi
+CLASSPATH="lib"
+for jar in `find lib bin ext_lib -name "*.jar"`; do
+    CLASSPATH="$CLASSPATH:$jar"
 done
 
-ZABBIX_OPTIONS=""
+if [ -n "$ZBX_LISTEN_IP" ]; then
+    ZABBIX_OPTIONS="$ZABBIX_OPTIONS -Dzabbix.listenIP=$ZBX_LISTEN_IP"
+fi
+if [ -n "$ZBX_LISTEN_PORT" ]; then
+    ZABBIX_OPTIONS="$ZABBIX_OPTIONS -Dzabbix.listenPort=$ZBX_LISTEN_PORT"
+fi
 if [ -n "$ZBX_START_POLLERS" ]; then
     ZABBIX_OPTIONS="$ZABBIX_OPTIONS -Dzabbix.startPollers=$ZBX_START_POLLERS"
 fi
 if [ -n "$ZBX_TIMEOUT" ]; then
-    ZABBIX_OPTIONS="$ZABBIX_OPTIONS -Dzabbix.timeout=$ZBX_TIMEOUT -Dsun.rmi.transport.tcp.responseTimeout=${ZBX_TIMEOUT}000"
+    ZABBIX_OPTIONS="$ZABBIX_OPTIONS -Dzabbix.timeout=$ZBX_TIMEOUT"
 fi
 
+tcp_timeout=${ZBX_TIMEOUT:=3}000
+ZABBIX_OPTIONS="$ZABBIX_OPTIONS -Dsun.rmi.transport.tcp.responseTimeout=$tcp_timeout"
 
 COMMAND_LINE="$JAVA $JAVA_OPTIONS -classpath $CLASSPATH $ZABBIX_OPTIONS com.zabbix.gateway.JavaGateway"
 

From 788be933e1fa3dadf88f73cf7d336227e041bb69 Mon Sep 17 00:00:00 2001
From: Alexey Pustovalov <alexey.pustovalov@zabbix.com>
Date: Thu, 18 Feb 2021 08:43:23 -0500
Subject: [PATCH 3/3] Review Java Gateway startup script

---
 java-gateway/alpine/README.md | 16 +++++++++++++++-
 java-gateway/centos/README.md | 16 +++++++++++++++-
 java-gateway/ubuntu/README.md | 16 +++++++++++++++-
 3 files changed, 45 insertions(+), 3 deletions(-)

diff --git a/java-gateway/alpine/README.md b/java-gateway/alpine/README.md
index be1d954a0..c4c803dde 100644
--- a/java-gateway/alpine/README.md
+++ b/java-gateway/alpine/README.md
@@ -80,6 +80,20 @@ This variable is used to specify timeout for outgoing connections. By default, v
 
 This variable is used to specify log level. By default, value is `info`. The variable allows next values: ``trace``, ``debug``, ``info``, ``want``, ``error``, ``all``, ``off``
 
+### `ZBX_PROPERTIES_FILE`
+
+Name of properties file. Can be used to set additional properties using a key-value format in such a way that they are not visible on a command line or to overwrite existing ones. Available since 5.2.3.
+
+### `ZABBIX_OPTIONS`
+
+Additional arguments for Zabbix Java Gateway. Useful to enable additional libraries and features.
+
+## Allowed volumes for the Zabbix Java Gateway container
+
+### ``/usr/sbin/zabbix_java/ext_lib``
+
+The volume allows include additional JAR files to extend allowed protocols for Zabbix Java Gateway.
+
 # The image variants
 
 The `zabbix-java-gateway` images come in many flavors, each designed for a specific use case.
@@ -108,7 +122,7 @@ Please see [the Docker installation documentation](https://docs.docker.com/insta
 
 ## Documentation
 
-Documentation for this image is stored in the [`java-gateway/` directory](https://github.com/zabbix/zabbix-docker/tree/3.0/java-gateway) of the [`zabbix/zabbix-docker` GitHub repo](https://github.com/zabbix/zabbix-docker/). Be sure to familiarize yourself with the [repository's `README.md` file](https://github.com/zabbix/zabbix-docker/blob/master/README.md) before attempting a pull request.
+Documentation for this image is stored in the [`java-gateway/` directory](https://github.com/zabbix/zabbix-docker/tree/current/java-gateway) of the [`zabbix/zabbix-docker` GitHub repo](https://github.com/zabbix/zabbix-docker/). Be sure to familiarize yourself with the [repository's `README.md` file](https://github.com/zabbix/zabbix-docker/blob/master/README.md) before attempting a pull request.
 
 ## Issues
 
diff --git a/java-gateway/centos/README.md b/java-gateway/centos/README.md
index be1d954a0..c4c803dde 100644
--- a/java-gateway/centos/README.md
+++ b/java-gateway/centos/README.md
@@ -80,6 +80,20 @@ This variable is used to specify timeout for outgoing connections. By default, v
 
 This variable is used to specify log level. By default, value is `info`. The variable allows next values: ``trace``, ``debug``, ``info``, ``want``, ``error``, ``all``, ``off``
 
+### `ZBX_PROPERTIES_FILE`
+
+Name of properties file. Can be used to set additional properties using a key-value format in such a way that they are not visible on a command line or to overwrite existing ones. Available since 5.2.3.
+
+### `ZABBIX_OPTIONS`
+
+Additional arguments for Zabbix Java Gateway. Useful to enable additional libraries and features.
+
+## Allowed volumes for the Zabbix Java Gateway container
+
+### ``/usr/sbin/zabbix_java/ext_lib``
+
+The volume allows include additional JAR files to extend allowed protocols for Zabbix Java Gateway.
+
 # The image variants
 
 The `zabbix-java-gateway` images come in many flavors, each designed for a specific use case.
@@ -108,7 +122,7 @@ Please see [the Docker installation documentation](https://docs.docker.com/insta
 
 ## Documentation
 
-Documentation for this image is stored in the [`java-gateway/` directory](https://github.com/zabbix/zabbix-docker/tree/3.0/java-gateway) of the [`zabbix/zabbix-docker` GitHub repo](https://github.com/zabbix/zabbix-docker/). Be sure to familiarize yourself with the [repository's `README.md` file](https://github.com/zabbix/zabbix-docker/blob/master/README.md) before attempting a pull request.
+Documentation for this image is stored in the [`java-gateway/` directory](https://github.com/zabbix/zabbix-docker/tree/current/java-gateway) of the [`zabbix/zabbix-docker` GitHub repo](https://github.com/zabbix/zabbix-docker/). Be sure to familiarize yourself with the [repository's `README.md` file](https://github.com/zabbix/zabbix-docker/blob/master/README.md) before attempting a pull request.
 
 ## Issues
 
diff --git a/java-gateway/ubuntu/README.md b/java-gateway/ubuntu/README.md
index be1d954a0..c4c803dde 100644
--- a/java-gateway/ubuntu/README.md
+++ b/java-gateway/ubuntu/README.md
@@ -80,6 +80,20 @@ This variable is used to specify timeout for outgoing connections. By default, v
 
 This variable is used to specify log level. By default, value is `info`. The variable allows next values: ``trace``, ``debug``, ``info``, ``want``, ``error``, ``all``, ``off``
 
+### `ZBX_PROPERTIES_FILE`
+
+Name of properties file. Can be used to set additional properties using a key-value format in such a way that they are not visible on a command line or to overwrite existing ones. Available since 5.2.3.
+
+### `ZABBIX_OPTIONS`
+
+Additional arguments for Zabbix Java Gateway. Useful to enable additional libraries and features.
+
+## Allowed volumes for the Zabbix Java Gateway container
+
+### ``/usr/sbin/zabbix_java/ext_lib``
+
+The volume allows include additional JAR files to extend allowed protocols for Zabbix Java Gateway.
+
 # The image variants
 
 The `zabbix-java-gateway` images come in many flavors, each designed for a specific use case.
@@ -108,7 +122,7 @@ Please see [the Docker installation documentation](https://docs.docker.com/insta
 
 ## Documentation
 
-Documentation for this image is stored in the [`java-gateway/` directory](https://github.com/zabbix/zabbix-docker/tree/3.0/java-gateway) of the [`zabbix/zabbix-docker` GitHub repo](https://github.com/zabbix/zabbix-docker/). Be sure to familiarize yourself with the [repository's `README.md` file](https://github.com/zabbix/zabbix-docker/blob/master/README.md) before attempting a pull request.
+Documentation for this image is stored in the [`java-gateway/` directory](https://github.com/zabbix/zabbix-docker/tree/current/java-gateway) of the [`zabbix/zabbix-docker` GitHub repo](https://github.com/zabbix/zabbix-docker/). Be sure to familiarize yourself with the [repository's `README.md` file](https://github.com/zabbix/zabbix-docker/blob/master/README.md) before attempting a pull request.
 
 ## Issues