I’m unsure why my docker-compose file is throwing this error, i’ve got four services being spun up the control centre, schema-registery, zookeeper and a broker. The only one that threw up an error was the zookeeper.
which was
request returned Internal Server Error for API route and version http://%2F%2F.%2Fpipe%2FdockerDesktopLinuxEngine/v1.46/images/confluentinc/cp-zookeeper:7.4.0/json, check if the server supports the requested API version
the zookeeper definition that i’ve done is:
zookeeper:
image: confluentinc/cp-zookeeper:7.4.0
hostname: zookeeper
container_name: zookeeper
ports:
- "2181:2181"
environment:
ZOOKEEPER_CLIENT_PORT: 2181
ZOOKEEPER_TICK_TIME: 2000
healthcheck:
test: ['CMD', 'bash', '-c', "echo 'ruok' | nc localhost 2181"]
interval: 10s
timeout: 5s
retries: 5
networks:
- confluent
my full docker compose file is:
version: '3'
services:
zookeeper:
image: confluentinc/cp-zookeeper:7.4.0
hostname: zookeeper
container_name: zookeeper
ports:
- "2181:2181"
environment:
ZOOKEEPER_CLIENT_PORT: 2181
ZOOKEEPER_TICK_TIME: 2000
healthcheck:
test: ['CMD', 'bash', '-c', "echo 'ruok' | nc localhost 2181"]
interval: 10s
timeout: 5s
retries: 5
networks:
- confluent
broker:
image: confluentinc/cp-server:7.4.0
hostname: broker
container_name: broker
depends_on:
zookeeper:
condition: service_healthy
ports:
- "9092:9092"
- "9101:9101"
environment:
KAFKA_BROKER_ID: 1
KAFKA_ZOOKEEPER_CONNECT: 'zookeeper:2181'
KAFKA_LISTENER_SECURITY_PROTOCOL_MAP: PLAINTEXT:PLAINTEXT,PLAINTEXT_HOST:PLAINTEXT
KAFKA_ADVERTISED_LISTENERS: PLAINTEXT://broker:29092,PLAINTEXT_HOST://localhost:9092
KAFKA_METRIC_REPORTERS: io.confluent.metrics.reporter.ConfluentMetricsReporter
KAFKA_OFFSETS_TOPIC_REPLICATION_FACTOR: 1
KAFKA_GROUP_INITIAL_REBALANCE_DELAY_MS: 0
KAFKA_CONFLUENT_LICENSE_TOPIC_REPLICATION_FACTOR: 1
KAFKA_CONFLUENT_BALANCER_TOPIC_REPLICATION_FACTOR: 1
KAFKA_TRANSACTION_STATE_LOG_MIN_ISR: 1
KAFKA_TRANSACTION_STATE_LOG_REPLICATION_FACTOR: 1
KAFKA_JMX_PORT: 9101
KAFKA_JMX_HOSTNAME: localhost
KAFKA_CONFLUENT_SCHEMA_REGISTRY_URL: http://schema-registry:8081
CONFLUENT_METRICS_REPORTER_BOOTSTRAP_SERVERS: broker:29092
CONFLUENT_METRICS_REPORTER_TOPIC_REPLICAS: 1
CONFLUENT_METRICS_ENABLE: 'false'
CONFLUENT_SUPPORT_CUSTOMER_ID: 'anonymous'
networks:
- confluent
healthcheck:
test: [ "CMD", "bash", "-c", 'nc -z localhost 9092' ]
interval: 10s
timeout: 5s
retries: 5
schema-registry:
image: confluentinc/cp-schema-registry:7.4.0
hostname: schema-registry
container_name: schema-registry
depends_on:
broker:
condition: service_healthy
ports:
- "8081:8081"
environment:
SCHEMA_REGISTRY_HOST_NAME: schema-registry
SCHEMA_REGISTRY_KAFKASTORE_BOOTSTRAP_SERVERS: 'broker:29092'
SCHEMA_REGISTRY_LISTENERS: http://0.0.0.0:8081
networks:
- confluent
healthcheck:
test: [ "CMD", "curl", "-f", "http://localhost:8081/" ]
interval: 30s
timeout: 10s
retries: 5
control-center:
image: confluentinc/cp-enterprise-control-center:7.4.0
hostname: control-center
container_name: control-center
depends_on:
broker:
condition: service_healthy
schema-registry:
condition: service_healthy
ports:
- "9021:9021"
environment:
CONTROL_CENTER_BOOTSTRAP_SERVERS: 'broker:29092'
CONTROL_CENTER_SCHEMA_REGISTRY_URL: "http://schema-registry:8081"
CONTROL_CENTER_REPLICATION_FACTOR: 1
CONTROL_CENTER_INTERNAL_TOPICS_PARTITIONS: 1
CONTROL_CENTER_MONITORING_INTERCEPTOR_TOPIC_PARTITIONS: 1
CONFLUENT_METRICS_TOPIC_REPLICATION: 1
CONFLIENT_METRICS_ENABLE: 'false'
PORT: 9021
networks:
- confluent
healthcheck:
test: [ "CMD", "curl", "-f", "http://localhost:9021/health" ]
interval: 30s
timeout: 10s
retries: 5
networks: confluent
What my understanding is that maybe there is not zookeeper 7.4.0 available as a dockerimage on confluent network, am i correct in thinking of those lines or is there something simpler?
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