Test Ergo Node on Different Java versions with Docker

1. Compile your Ergo node (install JRE and SBT first if you have not):

    git clone https://github.com/ergoplatform/ergo
    cd ergo
    sbt sbt reload clean assembly
   

2. Then, copy your Ergo jar and application.conf to some location, for example /tmp/ergo:

    cp `find . -name ergo-assembly*.jar` /tmp/ergo/ergo.jar
    cp ./src/main/resources/application.conf /tmp/ergo/application.conf
   

3. Adjust your node settings: nano /tmp/ergo/application.conf

4. Test your node`s .jar file in different environments:

    sudo docker run --rm -p 9002:9002 -p 9052:9052 \
      -v /tmp/ergo/ergo.jar:/ergo.jar:ro \
      -v /tmp/ergo/application.conf:/application.conf \
      openjdk:8-jre-alpine /usr/bin/java -jar /ergo.jar /application.conf
   

   Command above will run your locally compiled Ergo node in docker container. All logs and errors would be printed directly to stdout, you can press Ctrl+C to stop it. When you stop the node, all the blockchain data would be cleaned up automatically (--rm flag).

   Then, replace tag 8-jre-alpine with tags you like. For example, try:

   • 8-jre-alpine
   • 8-jre-slim
   • 9-jre-slim
   • 10-jre-slim
   • 11-jre-slim