Fixing the unreliable DNS name resolution thanks to http://stackoverf…

…low.com/a/43041298/4964553 and docker/for-win#500

README.md

@@ -191,7 +191,7 @@ This will fire up multiple containers running Spring Boot Apps inside Docker Win
 ![spring-cloud-example-running-docker-windows-containers](https://github.com/jonashackt/ansible-windows-docker-springboot/blob/master/spring-cloud-example-running-docker-windows-containers.png)
 
 
-## How to scale multiple Spring Boot Apps inside a Docker Windows Containers with Ansible, docker-compose and Spring Cloud Netflix ([step3-multiple-spring-boot-apps](https://github.com/jonashackt/ansible-windows-docker-springboot/tree/master/step4-multiple-spring-boot-apps-docker-compose))
+## How to scale multiple Spring Boot Apps inside a Docker Windows Containers with Ansible, docker-compose and Spring Cloud Netflix ([step4-multiple-spring-boot-apps-docker-compose](https://github.com/jonashackt/ansible-windows-docker-springboot/tree/master/step4-multiple-spring-boot-apps-docker-compose))
 
 
 Everything needed here is inside [step4-multiple-spring-boot-apps-docker-compose](https://github.com/jonashackt/ansible-windows-docker-springboot/tree/master/step4-multiple-spring-boot-apps-docker-compose). Be sure to have cloned and (Maven-) build the complete Spring Cloud example apps [spring-cloud-netflix-docker](https://github.com/jonashackt/spring-cloud-netflix-docker).  Let´s cd into `step4-multiple-spring-boot-apps-docker-compose` and run the playbook:

step1-prepare-docker-windows/templates/Dockerfile-SpringBoot-OracleJRE-Nanoserver.j2

@@ -14,3 +14,9 @@ RUN setx /M PATH %PATH%;%JAVA_HOME%\bin
 # Create logging default path for Spring Boot
 VOLUME C:\\tmp
 
+# A 'Temporary workaround for Windows DNS client weirdness' randomly found at https://github.com/docker/labs/blob/master/windows/windows-containers/MultiContainerApp.md
+# Without this, DNS
+SHELL ["powershell", "-Command", "$ErrorActionPreference = 'Stop';"]
+RUN set-itemproperty -path 'HKLM:\SYSTEM\CurrentControlSet\Services\Dnscache\Parameters' -Name ServerPriorityTimeLimit -Value 0 -Type DWord
+
+