In this topic JDBC Connection to DataHub I established a JDBC connection to dremio. For this I downloaded a jdbc driver. Now my microservice is ready to get deplyed. When I do this I get error messages that say it could not load the JDBC driver Could not load JDBC driver class [com.dremio.jdbc.Dri…

So I change my Dockerfile to this FROM openjdk:17-jdk-slim COPY etc/ /etc/service-request-mgmt/ ADD resources/* /data/ COPY entrypoint.sh /entrypoint.sh RUN chmod +x /entrypoint.sh ENV JAVA_OPTS="--add-opens java.base/java.nio=ALL-UNNAMED --add-opens java.base/jdk.internal.misc=ALL-UNNAMED" ENTRYPO…

You should add a proper dependency to your project: Using Dremio JDBC drivers with Maven Question: What dependencies do I need, to include Dremio JDBC jars in my Maven project? Dremio Legacy JDBC Driver To include the jars for the legacy JDBC driver, add the following to the relevant…

Ok thanks. I put now <repository> <id>dremio-free</id> <url>https://maven.dremio.com/free/</url> </repository> ... <dependency> <groupId>com.dremio.distribution</groupId> <artifactId>dremio-jdbc-driver</artifactId> <version>25.0.0-202404051521110861-ed9515a8</version> </depen…

In your pom.xml using the microservice-package-maven-plugin you can add a configuration: <jvmArgs> --add-opens .... or you can use your own dockerfile to build the microservice adding the properties you need. Here is an example: Cumulocity-IoT/cumulocity-microservice-templates/blob/main/b…

I edit my pom.xml: <plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> <version>${spring-boot-dependencies.version}</version> <configuration> <mainClass>com.....microservices.workpiece.WorkpieceApplicationKt</mainClass> …

Looks fine but the configuration Property is wrong. Try <jvmArgs> instead of <jvmArguments>

Ok, now I changed it to . My IDE complains about jvmArgs [grafik] but build went through. But I still go the same errors. Here complete stacktrace: java.sql.SQLException: Failure in connecting to Dremio: cdjd.com.dremio.exec.rpc.ConnectionFailedException: CONNECTION : SSL negotiation failed at …

Hm, I used it a long time ago. Maybe it’s not working anymore like that. Can you try the custom docker file?

For better understanding what exectly I have to do for this. I skip the package process <configuration> <name>templates-basic</name> <image>templates-basic</image> <encoding>UTF-8</encoding> <skip>${c8y.docker.skip}</skip> </configuration> I build with the same command lile before mvn clean…

It’s much easier: Add a dockerfile in src/main/docker folder Just build the microservice using the maven plugin e.g. mvn clean package Deploy the zip in the target folder The docker skip option is only there to avoid building the docker image all the time.

Ok, I add this dockerfile into src/main/docker FROM alpine:3 as base RUN apk add --no-cache openjdk@package.java-version@ RUN jlink \ --module-path /opt/java/jmods \ --compress=2 \ --add-modules java.se,jdk.unsupported,jdk.crypto.ec \ --no-header-files \ --no-man-pages \ --output /opt/jdk-mini FRO…

Add JDBC driver to image build

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Stefan_Witschel July 26, 2024, 11:47am 16

Not to my knowledge but I will make sure it is addressed in our Best Practices article series in the Architecture & General Best Practices article.

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Add JDBC driver to image build

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