diff --git a/.current.json b/.current.json
index 0ddad4f..ba1842a 100644
--- a/.current.json
+++ b/.current.json
@@ -1 +1 @@
-{"assignment":"java-advanced-ru/multithreading-spring"}
+{"assignment":"java-advanced-ru/docker"}
diff --git a/java-advanced-ru/docker/.gitignore b/java-advanced-ru/docker/.gitignore
new file mode 100644
index 0000000..67bcc2f
--- /dev/null
+++ b/java-advanced-ru/docker/.gitignore
@@ -0,0 +1,2 @@
+.gradle/
+build/
diff --git a/java-advanced-ru/docker/.idea/.gitignore b/java-advanced-ru/docker/.idea/.gitignore
new file mode 100644
index 0000000..26d3352
--- /dev/null
+++ b/java-advanced-ru/docker/.idea/.gitignore
@@ -0,0 +1,3 @@
+# Default ignored files
+/shelf/
+/workspace.xml
diff --git a/java-advanced-ru/docker/.idea/compiler.xml b/java-advanced-ru/docker/.idea/compiler.xml
new file mode 100644
index 0000000..b86273d
--- /dev/null
+++ b/java-advanced-ru/docker/.idea/compiler.xml
@@ -0,0 +1,6 @@
+
+
+
+
+
+
\ No newline at end of file
diff --git a/java-advanced-ru/docker/.idea/gradle.xml b/java-advanced-ru/docker/.idea/gradle.xml
new file mode 100644
index 0000000..f9163b4
--- /dev/null
+++ b/java-advanced-ru/docker/.idea/gradle.xml
@@ -0,0 +1,15 @@
+
+
+
+
+
+
\ No newline at end of file
diff --git a/java-advanced-ru/docker/.idea/misc.xml b/java-advanced-ru/docker/.idea/misc.xml
new file mode 100644
index 0000000..94c67d7
--- /dev/null
+++ b/java-advanced-ru/docker/.idea/misc.xml
@@ -0,0 +1,5 @@
+
+
+
+
+
\ No newline at end of file
diff --git a/java-advanced-ru/docker/.idea/vcs.xml b/java-advanced-ru/docker/.idea/vcs.xml
new file mode 100644
index 0000000..b2bdec2
--- /dev/null
+++ b/java-advanced-ru/docker/.idea/vcs.xml
@@ -0,0 +1,6 @@
+
+
+
+
+
+
\ No newline at end of file
diff --git a/java-advanced-ru/docker/Dockerfile b/java-advanced-ru/docker/Dockerfile
new file mode 100644
index 0000000..184a9bc
--- /dev/null
+++ b/java-advanced-ru/docker/Dockerfile
@@ -0,0 +1,22 @@
+FROM eclipse-temurin:20-jdk
+
+WORKDIR ./app
+
+COPY ./app .
+
+# Gradle setup
+ARG GRADLE_VERSION=8.7
+
+RUN apt-get update && apt-get install -yq make unzip
+RUN wget -q https://services.gradle.org/distributions/gradle-${GRADLE_VERSION}-bin.zip \
+ && unzip gradle-${GRADLE_VERSION}-bin.zip \
+ && rm gradle-${GRADLE_VERSION}-bin.zip
+
+ENV GRADLE_HOME=/opt/gradle
+RUN mv gradle-${GRADLE_VERSION} ${GRADLE_HOME}
+
+ENV PATH=$PATH:$GRADLE_HOME/bin
+
+CMD ["gradle", "run"]
+
+EXPOSE 8080
\ No newline at end of file
diff --git a/java-advanced-ru/docker/Makefile b/java-advanced-ru/docker/Makefile
new file mode 100644
index 0000000..30d4e35
--- /dev/null
+++ b/java-advanced-ru/docker/Makefile
@@ -0,0 +1,2 @@
+test:
+ gradle test
diff --git a/java-advanced-ru/docker/README.html b/java-advanced-ru/docker/README.html
new file mode 100644
index 0000000..276b759
--- /dev/null
+++ b/java-advanced-ru/docker/README.html
@@ -0,0 +1,104 @@
+
+
+
+
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/java-advanced-ru/docker/README.md b/java-advanced-ru/docker/README.md
new file mode 100644
index 0000000..540ff25
--- /dev/null
+++ b/java-advanced-ru/docker/README.md
@@ -0,0 +1,85 @@
+# Docker
+
+Docker — это программное обеспечение для автоматизации развёртывания и управления приложениями в средах с поддержкой контейнеризации. В этом домашнем задании мы познакомимся с Docker и упакуем простое приложение на Spring boot в контейнер.
+
+## Ссылки
+
+* [Установка Docker](https://docs.docker.com/engine/install/)
+* [Как и для чего использовать Docker](https://guides.hexlet.io/ru/docker/)
+* [Введение в Docker](https://www.youtube.com/watch?v=dfXuTTV6TVo)
+
+## Установка
+
+Для выполнения этого задания вам понадобится установленный Docker
+
+## Задачи
+
+* Установите Docker, следуя инструкции для своей операционной системы
+
+## app
+
+В директории *app* находится очень простое Spring boot приложение. Все, что оно делает – это выводит приветствие при запросе к корневой странице. Приложение стартует на порту 8080
+
+## Задачи
+
+* Изучите код этого приложения, его мы будем упаковывать в контейнер.
+
+## Dockerfile
+
+* Запишите в *Dockerfile* команды для упаковки приложения в образ.
+
+ При создании своего образа унаследуйтесть от образа `eclipse-temurin:20-jdk`. Внутри уже есть установленные jdk20, но нет Gradle. Так как для сборки приложения мы используем Gradle, нужно будет его установить вручную. Как это делается, можно посмотреть в [документации](https://gradle.org/install/#manually). Или просто добавьте код из примера ниже:
+
+ ```dockerfile
+ ARG GRADLE_VERSION=8.2
+
+ RUN apt-get update && apt-get install -yq make unzip
+
+ RUN wget -q https://services.gradle.org/distributions/gradle-${GRADLE_VERSION}-bin.zip \
+ && unzip gradle-${GRADLE_VERSION}-bin.zip \
+ && rm gradle-${GRADLE_VERSION}-bin.zip
+
+ ENV GRADLE_HOME=/opt/gradle
+
+ RUN mv gradle-${GRADLE_VERSION} ${GRADLE_HOME}
+
+ ENV PATH=$PATH:$GRADLE_HOME/bin
+ ```
+
+ При старте контейнера должно запускаться приложение. Приложение должно быть доступно снаружи контейнера на порту 3000.
+
+* Соберите образ при помощи команды:
+
+ ```bash
+ docker build -t .
+ ```
+
+ С помощью флага -t передается имя образа, включая имя аккаунта и тег.
+
+* После сборки образа вы сможете увидеть его в списке образов. Выполните команду `docker images` и найдите там свой образ.
+
+* Запустите контейнер при помощи команды:
+
+ ```bash
+ docker run -it -p 3000:8080
+ ```
+
+ Так как приложение внутри контейнера запускается на порту 8080, а снаружи контейнера оно должно быть доступно на порту 3000, нам нужно сопоставить порт 8080 внутри контейнера с портом 3000 на вашем компьютере. Это делается при помощи флага `-p`
+
+* Откройте браузер и загрузите страницу *http://localhost:3000*. Убедитесь, что все работает. Если все сделано верно, вы увидите приветствие.
+
+* Остановите образ при помощи комбинации клавиш Ctrl + C. После этого приложение станет недоступно.
+
+* Мы также можем запустить образ и подключиться к нему при помощи команды:
+
+ ```bash
+ docker run -it -p 3000:8080 bash
+ ```
+
+ Запустится bash сессия внутри контейнера. Изучите файловую систему внутри контейнера. Протестируйте наше приложение, запустите тесты при помощи команды `gradle test`. Выйти из контейнера можно при помощи комбинации клавиш Ctrl + D
+
+## Подсказки
+
+* Изучите файлы с примерами в директории *Examples*
+
+* Не забывайте, что внутри контейнера теперь доступен gradle, который поможет вам собрать и запустить приложение
diff --git a/java-advanced-ru/docker/app/build.gradle b/java-advanced-ru/docker/app/build.gradle
new file mode 100644
index 0000000..9b001b8
--- /dev/null
+++ b/java-advanced-ru/docker/app/build.gradle
@@ -0,0 +1,26 @@
+plugins {
+ id 'org.springframework.boot' version '3.0.6'
+ id 'io.spring.dependency-management' version '1.1.0'
+ id 'application'
+}
+
+repositories {
+ mavenCentral()
+}
+
+compileJava {
+ options.release = 20
+}
+
+dependencies {
+ implementation 'org.springframework.boot:spring-boot-starter-web'
+ testImplementation 'org.springframework.boot:spring-boot-starter-test'
+}
+
+test {
+ useJUnitPlatform()
+}
+
+application {
+ mainClass = 'exercise.App'
+}
diff --git a/java-advanced-ru/docker/app/settings.gradle b/java-advanced-ru/docker/app/settings.gradle
new file mode 100644
index 0000000..d2389a6
--- /dev/null
+++ b/java-advanced-ru/docker/app/settings.gradle
@@ -0,0 +1 @@
+rootProject.name = 'simple-application'
diff --git a/java-advanced-ru/docker/app/src/main/java/exercise/App.java b/java-advanced-ru/docker/app/src/main/java/exercise/App.java
new file mode 100644
index 0000000..77bf648
--- /dev/null
+++ b/java-advanced-ru/docker/app/src/main/java/exercise/App.java
@@ -0,0 +1,12 @@
+package exercise;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+public class App {
+
+ public static void main(String[] args) {
+ SpringApplication.run(App.class, args);
+ }
+}
diff --git a/java-advanced-ru/docker/app/src/main/java/exercise/WelcomeController.java b/java-advanced-ru/docker/app/src/main/java/exercise/WelcomeController.java
new file mode 100644
index 0000000..e0fb05b
--- /dev/null
+++ b/java-advanced-ru/docker/app/src/main/java/exercise/WelcomeController.java
@@ -0,0 +1,13 @@
+package exercise;
+
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+@RestController
+public class WelcomeController {
+
+ @GetMapping("/")
+ public String root() {
+ return "Great! We start Spring Boot application in Docker";
+ }
+}
diff --git a/java-advanced-ru/docker/app/src/test/java/exercise/AppTest.java b/java-advanced-ru/docker/app/src/test/java/exercise/AppTest.java
new file mode 100644
index 0000000..f2e0096
--- /dev/null
+++ b/java-advanced-ru/docker/app/src/test/java/exercise/AppTest.java
@@ -0,0 +1,29 @@
+package exercise;
+
+import org.junit.jupiter.api.Test;
+import static org.assertj.core.api.Assertions.assertThat;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.boot.test.context.SpringBootTest.WebEnvironment;
+import org.springframework.boot.test.web.client.TestRestTemplate;
+import org.springframework.boot.web.server.LocalServerPort;
+
+@SpringBootTest(webEnvironment = WebEnvironment.RANDOM_PORT)
+public class AppTest {
+
+ @LocalServerPort
+ private int port;
+
+ @Autowired
+ private TestRestTemplate restTemplate;
+
+ @Test
+ public void testRootPage() throws Exception {
+ String body = this.restTemplate.getForObject(
+ "http://localhost:" + port + "/",
+ String.class
+ );
+ assertThat(body).contains("Great! We start Spring Boot application in Docker");
+ }
+}
diff --git a/java-advanced-ru/docker/build.gradle b/java-advanced-ru/docker/build.gradle
new file mode 100644
index 0000000..cd71792
--- /dev/null
+++ b/java-advanced-ru/docker/build.gradle
@@ -0,0 +1,17 @@
+plugins {
+ id 'java'
+}
+
+task checkSolution {
+ File file = file('./Dockerfile')
+
+ doLast {
+ if (file.length() <= 1) {
+ throw new Error("You need to add solution to Dockerfile")
+ }
+ }
+}
+
+test {
+ dependsOn checkSolution
+}
diff --git a/java-advanced-ru/docker/examples/Dockerfile b/java-advanced-ru/docker/examples/Dockerfile
new file mode 100644
index 0000000..19df63e
--- /dev/null
+++ b/java-advanced-ru/docker/examples/Dockerfile
@@ -0,0 +1,16 @@
+# Указываем образ, от которого наследуемся
+FROM php:7.4-cli
+
+# Устанавливаем рабочую директорию
+WORKDIR /project
+
+# Копируем директорию из основной файловой системы внутрь образа
+COPY ./project .
+
+# Определяет действие, которое будет выполнено при старте контейнера (docker run)
+# Используется только в случае, если контейнер был запущен без указания команды
+# [команда, аргумент]
+CMD ["echo", "Hello Hexlet!"]
+
+# Сообщаем, что контейнер использует 8000 порт
+EXPOSE 8000
diff --git a/java-advanced-ru/docker/examples/commands.sh b/java-advanced-ru/docker/examples/commands.sh
new file mode 100644
index 0000000..babdd42
--- /dev/null
+++ b/java-advanced-ru/docker/examples/commands.sh
@@ -0,0 +1,12 @@
+# Используется для сборки образа
+# Флаг -t позволяет указать имя образа
+docker build . -t my_account_name/awesome-image
+# Показывает все собранные образы
+docker images
+# Запускает контейнер
+# Флаг -p используется для проброса портов: <порт внутри контейнера>:<порт доступный снаружи>
+docker run -it -p 80:8080 my_account_name/awesome-image
+# Отправляет образ на dockerhub
+docker push my_account_name/awesome-image
+# А так мы можем запустить образ и подключиться к нему с помощью bash
+docker run -it -p 80:8080 my_account_name/awesome-image bash
diff --git a/java-advanced-ru/docker/gradle/wrapper/gradle-wrapper.jar b/java-advanced-ru/docker/gradle/wrapper/gradle-wrapper.jar
new file mode 100644
index 0000000..d64cd49
Binary files /dev/null and b/java-advanced-ru/docker/gradle/wrapper/gradle-wrapper.jar differ
diff --git a/java-advanced-ru/docker/gradle/wrapper/gradle-wrapper.properties b/java-advanced-ru/docker/gradle/wrapper/gradle-wrapper.properties
new file mode 100644
index 0000000..1af9e09
--- /dev/null
+++ b/java-advanced-ru/docker/gradle/wrapper/gradle-wrapper.properties
@@ -0,0 +1,7 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.5-bin.zip
+networkTimeout=10000
+validateDistributionUrl=true
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
diff --git a/java-advanced-ru/docker/gradlew b/java-advanced-ru/docker/gradlew
new file mode 100755
index 0000000..1aa94a4
--- /dev/null
+++ b/java-advanced-ru/docker/gradlew
@@ -0,0 +1,249 @@
+#!/bin/sh
+
+#
+# Copyright © 2015-2021 the original authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+##############################################################################
+#
+# Gradle start up script for POSIX generated by Gradle.
+#
+# Important for running:
+#
+# (1) You need a POSIX-compliant shell to run this script. If your /bin/sh is
+# noncompliant, but you have some other compliant shell such as ksh or
+# bash, then to run this script, type that shell name before the whole
+# command line, like:
+#
+# ksh Gradle
+#
+# Busybox and similar reduced shells will NOT work, because this script
+# requires all of these POSIX shell features:
+# * functions;
+# * expansions «$var», «${var}», «${var:-default}», «${var+SET}»,
+# «${var#prefix}», «${var%suffix}», and «$( cmd )»;
+# * compound commands having a testable exit status, especially «case»;
+# * various built-in commands including «command», «set», and «ulimit».
+#
+# Important for patching:
+#
+# (2) This script targets any POSIX shell, so it avoids extensions provided
+# by Bash, Ksh, etc; in particular arrays are avoided.
+#
+# The "traditional" practice of packing multiple parameters into a
+# space-separated string is a well documented source of bugs and security
+# problems, so this is (mostly) avoided, by progressively accumulating
+# options in "$@", and eventually passing that to Java.
+#
+# Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS,
+# and GRADLE_OPTS) rely on word-splitting, this is performed explicitly;
+# see the in-line comments for details.
+#
+# There are tweaks for specific operating systems such as AIX, CygWin,
+# Darwin, MinGW, and NonStop.
+#
+# (3) This script is generated from the Groovy template
+# https://github.com/gradle/gradle/blob/HEAD/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
+# within the Gradle project.
+#
+# You can find Gradle at https://github.com/gradle/gradle/.
+#
+##############################################################################
+
+# Attempt to set APP_HOME
+
+# Resolve links: $0 may be a link
+app_path=$0
+
+# Need this for daisy-chained symlinks.
+while
+ APP_HOME=${app_path%"${app_path##*/}"} # leaves a trailing /; empty if no leading path
+ [ -h "$app_path" ]
+do
+ ls=$( ls -ld "$app_path" )
+ link=${ls#*' -> '}
+ case $link in #(
+ /*) app_path=$link ;; #(
+ *) app_path=$APP_HOME$link ;;
+ esac
+done
+
+# This is normally unused
+# shellcheck disable=SC2034
+APP_BASE_NAME=${0##*/}
+# Discard cd standard output in case $CDPATH is set (https://github.com/gradle/gradle/issues/25036)
+APP_HOME=$( cd "${APP_HOME:-./}" > /dev/null && pwd -P ) || exit
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD=maximum
+
+warn () {
+ echo "$*"
+} >&2
+
+die () {
+ echo
+ echo "$*"
+ echo
+ exit 1
+} >&2
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "$( uname )" in #(
+ CYGWIN* ) cygwin=true ;; #(
+ Darwin* ) darwin=true ;; #(
+ MSYS* | MINGW* ) msys=true ;; #(
+ NONSTOP* ) nonstop=true ;;
+esac
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+ if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+ # IBM's JDK on AIX uses strange locations for the executables
+ JAVACMD=$JAVA_HOME/jre/sh/java
+ else
+ JAVACMD=$JAVA_HOME/bin/java
+ fi
+ if [ ! -x "$JAVACMD" ] ; then
+ die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+ fi
+else
+ JAVACMD=java
+ if ! command -v java >/dev/null 2>&1
+ then
+ die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+ fi
+fi
+
+# Increase the maximum file descriptors if we can.
+if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
+ case $MAX_FD in #(
+ max*)
+ # In POSIX sh, ulimit -H is undefined. That's why the result is checked to see if it worked.
+ # shellcheck disable=SC2039,SC3045
+ MAX_FD=$( ulimit -H -n ) ||
+ warn "Could not query maximum file descriptor limit"
+ esac
+ case $MAX_FD in #(
+ '' | soft) :;; #(
+ *)
+ # In POSIX sh, ulimit -n is undefined. That's why the result is checked to see if it worked.
+ # shellcheck disable=SC2039,SC3045
+ ulimit -n "$MAX_FD" ||
+ warn "Could not set maximum file descriptor limit to $MAX_FD"
+ esac
+fi
+
+# Collect all arguments for the java command, stacking in reverse order:
+# * args from the command line
+# * the main class name
+# * -classpath
+# * -D...appname settings
+# * --module-path (only if needed)
+# * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables.
+
+# For Cygwin or MSYS, switch paths to Windows format before running java
+if "$cygwin" || "$msys" ; then
+ APP_HOME=$( cygpath --path --mixed "$APP_HOME" )
+ CLASSPATH=$( cygpath --path --mixed "$CLASSPATH" )
+
+ JAVACMD=$( cygpath --unix "$JAVACMD" )
+
+ # Now convert the arguments - kludge to limit ourselves to /bin/sh
+ for arg do
+ if
+ case $arg in #(
+ -*) false ;; # don't mess with options #(
+ /?*) t=${arg#/} t=/${t%%/*} # looks like a POSIX filepath
+ [ -e "$t" ] ;; #(
+ *) false ;;
+ esac
+ then
+ arg=$( cygpath --path --ignore --mixed "$arg" )
+ fi
+ # Roll the args list around exactly as many times as the number of
+ # args, so each arg winds up back in the position where it started, but
+ # possibly modified.
+ #
+ # NB: a `for` loop captures its iteration list before it begins, so
+ # changing the positional parameters here affects neither the number of
+ # iterations, nor the values presented in `arg`.
+ shift # remove old arg
+ set -- "$@" "$arg" # push replacement arg
+ done
+fi
+
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+
+# Collect all arguments for the java command:
+# * DEFAULT_JVM_OPTS, JAVA_OPTS, JAVA_OPTS, and optsEnvironmentVar are not allowed to contain shell fragments,
+# and any embedded shellness will be escaped.
+# * For example: A user cannot expect ${Hostname} to be expanded, as it is an environment variable and will be
+# treated as '${Hostname}' itself on the command line.
+
+set -- \
+ "-Dorg.gradle.appname=$APP_BASE_NAME" \
+ -classpath "$CLASSPATH" \
+ org.gradle.wrapper.GradleWrapperMain \
+ "$@"
+
+# Stop when "xargs" is not available.
+if ! command -v xargs >/dev/null 2>&1
+then
+ die "xargs is not available"
+fi
+
+# Use "xargs" to parse quoted args.
+#
+# With -n1 it outputs one arg per line, with the quotes and backslashes removed.
+#
+# In Bash we could simply go:
+#
+# readarray ARGS < <( xargs -n1 <<<"$var" ) &&
+# set -- "${ARGS[@]}" "$@"
+#
+# but POSIX shell has neither arrays nor command substitution, so instead we
+# post-process each arg (as a line of input to sed) to backslash-escape any
+# character that might be a shell metacharacter, then use eval to reverse
+# that process (while maintaining the separation between arguments), and wrap
+# the whole thing up as a single "set" statement.
+#
+# This will of course break if any of these variables contains a newline or
+# an unmatched quote.
+#
+
+eval "set -- $(
+ printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" |
+ xargs -n1 |
+ sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' |
+ tr '\n' ' '
+ )" '"$@"'
+
+exec "$JAVACMD" "$@"
diff --git a/java-advanced-ru/docker/gradlew.bat b/java-advanced-ru/docker/gradlew.bat
new file mode 100644
index 0000000..6689b85
--- /dev/null
+++ b/java-advanced-ru/docker/gradlew.bat
@@ -0,0 +1,92 @@
+@rem
+@rem Copyright 2015 the original author or authors.
+@rem
+@rem Licensed under the Apache License, Version 2.0 (the "License");
+@rem you may not use this file except in compliance with the License.
+@rem You may obtain a copy of the License at
+@rem
+@rem https://www.apache.org/licenses/LICENSE-2.0
+@rem
+@rem Unless required by applicable law or agreed to in writing, software
+@rem distributed under the License is distributed on an "AS IS" BASIS,
+@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+@rem See the License for the specific language governing permissions and
+@rem limitations under the License.
+@rem
+
+@if "%DEBUG%"=="" @echo off
+@rem ##########################################################################
+@rem
+@rem Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%"=="" set DIRNAME=.
+@rem This is normally unused
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Resolve any "." and ".." in APP_HOME to make it shorter.
+for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if %ERRORLEVEL% equ 0 goto execute
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto execute
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %*
+
+:end
+@rem End local scope for the variables with windows NT shell
+if %ERRORLEVEL% equ 0 goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+set EXIT_CODE=%ERRORLEVEL%
+if %EXIT_CODE% equ 0 set EXIT_CODE=1
+if not ""=="%GRADLE_EXIT_CONSOLE%" exit %EXIT_CODE%
+exit /b %EXIT_CODE%
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega
diff --git a/java-advanced-ru/docker/presentation.pdf b/java-advanced-ru/docker/presentation.pdf
new file mode 100644
index 0000000..85ac636
Binary files /dev/null and b/java-advanced-ru/docker/presentation.pdf differ
diff --git a/java-advanced-ru/docker/settings.gradle b/java-advanced-ru/docker/settings.gradle
new file mode 100644
index 0000000..173ffa4
--- /dev/null
+++ b/java-advanced-ru/docker/settings.gradle
@@ -0,0 +1 @@
+rootProject.name = 'docker'