Merge branch '311-migrate-to-opensearch' into 'dev'

.env.unix.example

README.md

dbrepo-container-service/Dockerfile

dbrepo-container-service/pom.xml

...in/java/at/tuwien/DbrepoContainerManagingApplication.java

...ice/rest-service/src/main/resources/application-local.yml

...r-service/rest-service/src/main/resources/application.yml

...st/java/at/tuwien/endpoint/ContainerEndpointUnitTest.java

...java/at/tuwien/endpoint/ImageEndpointIntegrationTest.java

...c/test/java/at/tuwien/endpoint/ImageEndpointUnitTest.java

...va/at/tuwien/service/ContainerServiceIntegrationTest.java

...t/java/at/tuwien/service/ImageServiceIntegrationTest.java

...src/test/java/at/tuwien/service/ImageServiceUnitTest.java

...st/java/at/tuwien/service/PersistenceIntegrationTest.java

...st/java/at/tuwien/service/UserServiceIntegrationTest.java

...ices/src/main/java/at/tuwien/config/OpenSearchConfig.java

...c/main/java/at/tuwien/repository/jpa/RealmRepository.java

...in/java/at/tuwien/repository/mdb/ContainerRepository.java

...ain/java/at/tuwien/repository/mdb/DatabaseRepository.java

...n/java/at/tuwien/repository/mdb/IdentifierRepository.java