我想运行Cassandra Docker镜像。我希望我的应用程序(在另一个容器中运行(可以连接到 Cassandra 容器。所以我想在两个应用程序中都使用host.docker.internal作为域名。
当我启动卡桑德拉图像时，出现错误
org.apache.cassandra.exceptions.ConfigurationException: Unable to bind to address host.docker.internal/192.168.65.2:7000. Set listen_address in cassandra.yaml to an interface you can bind to, e.g., your private IP address on EC2
为什么host.docker.internal决心192.168.65.2/7000？不应该192.168.1.12，因为这是我在 Windows 10 上的etc/hosts文件中配置的内容。
C:Usersmanuc>ping host.docker.internal
Pinging host.docker.internal [192.168.1.12] with 32 bytes of data:
Reply from 192.168.1.12: bytes=32 time<1ms TTL=128
Reply from 192.168.1.12: bytes=32 time=1ms TTL=128
Reply from 192.168.1.12: bytes=32 time<1ms TTL=128
Reply from 192.168.1.12: bytes=32 time<1ms TTL=128
我还尝试在启动 Cassandra 图像时显式指定192.168.1.12，但我收到类似的错误。
我能够启动容器的唯一方法是运行docker run ca795bbd8fd7但在这种情况下，Cassandra 在地址Starting listening for CQL clients on /0.0.0.0:9042 (unencrypted)..处侦听cqlsh但我的另一个 Docker 应用程序无法连接它(在同一台 Windows 机器上运行(
尝试从容器外部连接到 Cassandra 容器
C:Usersmanuc>cqlsh host.docker.internal 9042
Connection error: ('Unable to connect to any servers', {'192.168.1.12': error(10061, "Tried connecting to [('192.168.1.12', 9042)]. Last error: No connection could be made because the target machine actively refused it")})
C:Usersmanuc>cqlsh 0.0.0.0 9042
Connection error: ('Unable to connect to any servers', {'0.0.0.0': error(10049, "Tried connecting to [('0.0.0.0', 9042)]. Last error: The requested address is not valid in its context")})
尝试连接我的其他容器
[trace] s.d.c.CassandraConnectionManagementService - creating session with uri CassandraConnectionUri(cassandra://host.docker.internal:9042/codingjedi) and cluster name Test Cluster
[trace] s.d.c.CassandraConnectionManagementService - exception in connecting with database com.datastax.driver.core.exceptions.NoHostAvailableException: All host(s) tried for query failed (tried: host.docker.internal/192.168.65.2:9042 (com.datastax.driver.core.exceptions.TransportException: [host.docker.internal/192.168.65.2:9042] Cannot connect))
Oops, cannot start the server.
play.api.libs.json.JsResult$Exception: {"obj":[{"msg":["Unable to connect with database"],"args":[]}]}
(尽管我也注意到对于此容器，docker.internal.hosts映射到与Cassandra容器相同的IP地址(。
附加信息。如果在没有LISTENING_ADDRESS的情况下运行，Cassandra会暴露以下端口
7000-7001/tcp, 7199/tcp, 9042/tcp, 9160/tcp
这个问题非常微不足道。启动cassandracontainer时我没有公开9042端口.这使得事情开箱即用 -docker run -p 9042:9042 image_id