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Connection refused during running app on docker - Spring Boot & mssql server

I'm start to play with Docker. I'm trying to run Spring Boot application on Docker which connects with mssql-server-linux on docker. I'm configure and run mssql server. My app has set database port and when I run this app in IntelliJ everything is ok. Also when I build app './mvnw install dockerfile:build' command everything is ok. Also adds entity to database during build. When I try run app 'docker run' command I get this exception:

com.microsoft.sqlserver.jdbc.SQLServerException: The TCP/IP connection to the host localhost, port 1433 has failed. Error: "Connection refused. Verify the connection properties. Make sure that an instance of SQL Server is running on the host and accepting TCP/IP connections at the port. Make sure that TCP connections to the port are not blocked by a firewall.".


What's the problem?

My spring boot app properties:

spring.datasource.username=sa
spring.datasource.password=ABCabc123!
spring.datasource.url=jdbc:sqlserver://localhost:1433;databaseName=DockerApp
spring.datasource.driverClassName=com.microsoft.sqlserver.jdbc.SQLServerDriver
spring.jpa.properties.hibernate.show_sql=true
spring.jpa.properties.hibernate.format_sql=true
spring.jpa.hibernate.dialect=org.hibernate.dialect.SQLServer2012Dialect
spring.jpa.hibernate.ddl-auto=update


Dockerfile:

FROM java:8
VOLUME /tmp
ARG JAR_FILE
COPY ${JAR_FILE} docker-app.jar
ENTRYPOINT ["java","-Djava.security.egd=file:/dev/./urandom","-
jar","/docker-app.jar"]
CMD ["-start"]


My build options in pom.xml:

<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>

<plugin>
<groupId>com.spotify</groupId>
<artifactId>dockerfile-maven-plugin</artifactId>
<version>1.3.6</version>
<executions>
<execution>
<id>default</id>
<goals>
<goal>build</goal>
<goal>push</goal>
</goals>
</execution>
</executions>
<configuration>
<repository>my-repo</repository>
<tag>${project.version}</tag>
<pullNewerImage>false</pullNewerImage>
<useMavenSettingsForAuth>true</useMavenSettingsForAuth>
<buildArgs>
<JAR_FILE>target/${project.build.finalName}.jar</JAR_FILE>
</buildArgs>
</configuration>
</plugin>
</plugins>
</build>


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