how to BASH SSH and SUDO

bash_ssh_sudo.sh

ssh ${SERVER} <<ENDSSH

        cd ${REPO}
        sudo -s -- <<SUDO
            unset HISTFILE
            [[ ! -d /root/.docker ]] && mkdir /root/.docker
            [[ ! -e /root/.docker/config.json ]] && echo '{"credsStore": "registrycreds"}' > /root/.docker/config.json
            [[ ! -d /root/bin ]] && mkdir /root/bin
            echo > /root/bin/docker-credential-registrycreds <<<RRR
#!/bin/bash
cat <<JSON
{
  "ServerURL": "${REGISTRYSERVER}",
  "Username": "${DOCKER_USER}",
  "Secret": "${DOCKER_PASS}"
}
JSON
RRR
            chmod u+x /root/bin/docker-credential-registrycreds
            export PATH=$PATH:/root/bin
            export DOCKER_USER="${DOCKERUSER}"
            export DOCKER_PASS="${DOCKERPASS}"
            docker pull ${REGISTRYSERVER}/${REPO}:${VER}
            docker-compose up --build -d ${REPO}
SUDO
ENDSSH