我试图运行confluent的docker映像来初始化带有debezium mysql连接器的连接服务，但在运行docker后未能获取加载的类。
docker命令

docker run -d \
    --name=kafka-connect \
    --net=host \
    -e CONNECT_BOOTSTRAP_SERVERS="b-2.<bootstrap_server>.us-east-1.amazonaws.com:9092,b-3.<bootstrap_server>.us-east-1.amazonaws.com:9092,b-1.<bootstrap_server>.us-east-1.amazonaws.com:9092" \
    -e CONNECT_REST_PORT=8083 \
    -e CONNECT_PLUGIN_PATH="/usr/share/java,/tmp/connectors" \
    -e CONNECT_GROUP_ID="quickstart" \
    -e CONNECT_CONFIG_STORAGE_TOPIC="quick-config" \
    -e CONNECT_OFFSET_STORAGE_TOPIC="quick-offsets" \
    -e CONNECT_STATUS_STORAGE_TOPIC="quick-status" \
    -e CONNECT_KEY_CONVERTER="org.apache.kafka.connect.json.JsonConverter" \
    -e CONNECT_VALUE_CONVERTER="org.apache.kafka.connect.json.JsonConverter" \
    -e CONNECT_INTERNAL_KEY_CONVERTER="org.apache.kafka.connect.json.JsonConverter" \
    -e CONNECT_INTERNAL_VALUE_CONVERTER="org.apache.kafka.connect.json.JsonConverter" \
    -e CONNECT_REST_ADVERTISED_HOST_NAME="ec2-<public_ip>.compute-1.amazonaws.com" \
    -v /opt/connectors:/tmp/connectors \
    confluentinc/cp-kafka-connect:3.1.2

卷（-v）中使用的我的示例目录文件如下：

ubuntu@ip-<hostname>:/opt/connectors$ ls
debezium-connect-jdbc

下面的命令测试debeziummysql驱动类是否加载

curl -s http://ec2-<public_ip>.compute-1.amazonaws.com:8083/connector-plugins | jq .

在运行上述命令之后，我没有看到下面提到的debeziummysql连接器类

io.debezium.connector.mysql.MySqlConnector