我正在尝试使用新的 KafkaConnector 资源遵循教程 Deploying Debezium。根据教程，我也在使用 minikube，但使用了 docker 驱动程序。基本上只是一步一步地完全按照。
但是，对于“创建连接器”步骤，在创建连接器之后
cat <<EOF | kubectl -n kafka apply -f -
apiVersion: "kafka.strimzi.io/v1alpha1"
kind: "KafkaConnector"
metadata:
name: "inventory-connector"
labels:
strimzi.io/cluster: my-connect-cluster
spec:
class: io.debezium.connector.mysql.MySqlConnector
tasksMax: 1
config:
database.hostname: 192.168.99.1
database.port: "3306"
database.user: "${file:/opt/kafka/external-configuration/connector-config/debezium-mysql-credentials.properties:mysql_username}"
database.password: "${file:/opt/kafka/external-configuration/connector-config/debezium-mysql-credentials.properties:mysql_password}"
database.server.id: "184054"
database.server.name: "dbserver1"
database.whitelist: "inventory"
database.history.kafka.bootstrap.servers: "my-cluster-kafka-bootstrap:9092"
database.history.kafka.topic: "schema-changes.inventory"
include.schema.changes: "true"
EOF
并检查
kubectl -n kafka get kctr inventory-connector -o yaml
我有错误
apiVersion: kafka.strimzi.io/v1alpha1
kind: KafkaConnector
metadata:
annotations:
kubectl.kubernetes.io/last-applied-configuration: |
{"apiVersion":"kafka.strimzi.io/v1alpha1","kind":"KafkaConnector","metadata":{"annotations":{},"labels":{"strimzi.io/cluster":"my-connect-cluster"},"name":"inventory-connector","namespace":"kafka"},"spec":{"class":"io.debezium.connector.mysql.MySqlConnector","config":{"database.history.kafka.bootstrap.servers":"my-cluster-kafka-bootstrap:9092","database.history.kafka.topic":"schema-changes.inventory","database.hostname":"192.168.49.2","database.password":"","database.port":"3306","database.server.id":"184054","database.server.name":"dbserver1","database.user":"","database.whitelist":"inventory","include.schema.changes":"true"},"tasksMax":1}}
creationTimestamp: "2021-09-29T18:20:11Z"
generation: 1
labels:
strimzi.io/cluster: my-connect-cluster
name: inventory-connector
namespace: kafka
resourceVersion: "12777"
uid: 083df9a3-83ce-4170-a9bc-9573dafdb286
spec:
class: io.debezium.connector.mysql.MySqlConnector
config:
database.history.kafka.bootstrap.servers: my-cluster-kafka-bootstrap:9092
database.history.kafka.topic: schema-changes.inventory
database.hostname: 192.168.49.2
database.password: ""
database.port: "3306"
database.server.id: "184054"
database.server.name: dbserver1
database.user: ""
database.whitelist: inventory
include.schema.changes: "true"
tasksMax: 1
status:
conditions:
- lastTransitionTime: "2021-09-29T18:20:11.548Z"
message: |-
PUT /connectors/inventory-connector/config returned 400 (Bad Request): Connector configuration is invalid and contains the following 1 error(s):
A value is required
You can also find the above list of errors at the endpoint `/{connectorType}/config/validate`
reason: ConnectRestException
status: "True"
type: NotReady
observedGeneration: 1
我试图改变
database.user: "${file:/opt/kafka/external-configuration/connector-config/debezium-mysql-credentials.properties:mysql_username}"
database.password: "${file:/opt/kafka/external-configuration/connector-config/debezium-mysql-credentials.properties:mysql_password}"
到
database.user: "debezium"
database.password: "dbz"
根据“保护数据库凭据”步骤中的用户和密码信息，直接重新申请。
另外，根据教程中的描述
我将
database.hostname: 192.168.99.1其用作连接 MySQL 的 IP 地址，因为我将 minikube 与 virtualbox VM 驱动程序一起使用如果您使用不同的 VM 驱动程序，则minikube可能需要不同的 IP 地址。
我实际上对上面的描述有点困惑。演示中的 MySQL 部署在 Docker 中，而 Kafka 等其余部分部署在 minikube 中。为什么描述中database.hostname说 minikube 而不是 Docker？
无论如何，当我跑步时minikube ip，我得到了192.168.49.2。但是，在我更改database.hostname为192.168.49.2, 并运行后kubectl get kctr inventory-connector -o yaml -n kafka，我得到了
apiVersion: kafka.strimzi.io/v1alpha1
kind: KafkaConnector
metadata:
annotations:
kubectl.kubernetes.io/last-applied-configuration: |
{"apiVersion":"kafka.strimzi.io/v1alpha1","kind":"KafkaConnector","metadata":{"annotations":{},"labels":{"strimzi.io/cluster":"my-connect-cluster"},"name":"inventory-connector","namespace":"kafka"},"spec":{"class":"io.debezium.connector.mysql.MySqlConnector","config":{"database.history.kafka.bootstrap.servers":"my-cluster-kafka-bootstrap:9092","database.history.kafka.topic":"schema-changes.inventory","database.hostname":"192.168.49.2","database.password":"","database.port":"3306","database.server.id":"184054","database.server.name":"dbserver1","database.user":"","database.whitelist":"inventory","include.schema.changes":"true"},"tasksMax":1}}
creationTimestamp: "2021-09-29T18:20:11Z"
generation: 1
labels:
strimzi.io/cluster: my-connect-cluster
name: inventory-connector
namespace: kafka
resourceVersion: "12777"
uid: 083df9a3-83ce-4170-a9bc-9573dafdb286
spec:
class: io.debezium.connector.mysql.MySqlConnector
config:
database.history.kafka.bootstrap.servers: my-cluster-kafka-bootstrap:9092
database.history.kafka.topic: schema-changes.inventory
database.hostname: 192.168.49.2
database.password: ""
database.port: "3306"
database.server.id: "184054"
database.server.name: dbserver1
database.user: ""
database.whitelist: inventory
include.schema.changes: "true"
tasksMax: 1
status:
conditions:
- lastTransitionTime: "2021-09-29T18:20:11.548Z"
message: |-
PUT /connectors/inventory-connector/config returned 400 (Bad Request): Connector configuration is invalid and contains the following 1 error(s):
A value is required
You can also find the above list of errors at the endpoint `/{connectorType}/config/validate`
reason: ConnectRestException
status: "True"
type: NotReady
observedGeneration: 1
我可以访问 MySQL，localhost因为它托管在 Docker 中。但是，当我更改database.hostname为localhost.
任何的想法？谢谢！