I want to setup scyllaDb on docker in my local environment and then i want to connect it to the node i tried but connection is not established

ScyllaDB
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2

Where did you try to connect to the node from?

Note, that by default, scylla will bind to the localhost address, which is not accessible from outside the docker container. The most convenient way to achieve this is to just add --network=host to your docker run command. This is fine in development setups.
A more complete solution is to specify in scylla.yaml ip addresses for listen_address and rpc_address, such that they are accessible from the client’s network and the network the other scylla nodes are in respectively (the two can be the same). See Administration Guide | ScyllaDB Docs for more details.

3

I was able to do just that with running 3-node Scylla cluster in local docker. I also have JAVA application running in the container in the same docker that connects to Scylla. Here is how I set it up:

docker-compose.yml

version: '3'

services:
  scylla-docker1:
    image: scylladb/scylla
    container_name: scylla-docker1
    environment:
      - CLUSTER_NAME=scylla-docker
    command:
      - --alternator-port 8000
      - --alternator-write-isolation unsafe
      - --smp 1
    networks:
      - test-net

  scylla-docker2:
    image: scylladb/scylla
    container_name: scylla-docker2
    environment:
      - CLUSTER_NAME=scylla-docker
    command:
      - --seeds="scylla-docker1"
      - --alternator-port 8000
      - --alternator-write-isolation unsafe
      - --smp 1
    networks:
      - test-net

  scylla-docker3:
    image: scylladb/scylla
    container_name: scylla-docker3
    environment:
      - CLUSTER_NAME=scylla-docker
    command:
      - --seeds="scylla-docker1"
      - --alternator-port 8000
      - --alternator-write-isolation unsafe
      - --smp 1
    networks:
      - test-net

networks:
  test-net:
    name: test-net
    external: true

startup-script.sh

docker rmi $(docker images -f "dangling=true" -q)
docker network inspect test-net >/dev/null 2>&1 || docker network create -d bridge test-net
docker network ls
docker container ls
docker-compose up -d
docker run --network test-net --env-file ${PWD}/.env test-java-scylla:0.0.2
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