ksqldb, issue setting schema registry - apache-kafka

Question

I have set in ksqldb-server in /etc/ksqldb/ksql-server.properties file, my schema registry as they say in the documentation :
ksql.schema.registry.url=http://myipaddress:8090
but when I go inside my ksqldb container :
docker exec -it ksqldb-cli ksql http://ksqldb-server:8088
and I try to run :
CREATE STREAM tracking WITH (KAFKA_TOPIC='tracking', VALUE_FORMAT='AVRO');
I get error:
Cannot create topic 'tracking' with format AVRO without configuring 'ksql.schema.registry.url'
I have also tried setting it with the following, even it's not recommended :
SET 'ksql.schema.registry.url'='http://myipaddress:8090';
but still getting same error, not sure what I'm doing wrong.
this is my docker-compose file:
version: "3.3"
services:
# Kafka/Zookeeper container
divolte-kafka:
image: krisgeus/docker-kafka
restart: always
environment:
ADVERTISED_HOST: divolte-kafka
LOG_RETENTION_HOURS: 1
AUTO_CREATE_TOPICS: "false"
KAFKA_CREATE_TOPICS: tracking:4:1
ADVERTISED_LISTENERS: PLAINTEXT://divolte-kafka:9092,INTERNAL://localhost:9093
LISTENERS: PLAINTEXT://0.0.0.0:9092,INTERNAL://0.0.0.0:9093
SECURITY_PROTOCOL_MAP: PLAINTEXT:PLAINTEXT,INTERNAL:PLAINTEXT
INTER_BROKER: INTERNAL
# Schema Registry
schema-registry:
image: confluentinc/cp-schema-registry:5.5.3
restart: always
depends_on:
- divolte-kafka
ports:
- 8090:8081
environment:
SCHEMA_REGISTRY_HOST_NAME: schema-registry
SCHEMA_REGISTRY_KAFKASTORE_CONNECTION_URL: divolte-kafka:2181
# ksql server
ksqldb-server:
image: confluentinc/ksqldb-server:0.20.0
restart: always
hostname: ksqldb-server
container_name: ksqldb-server
depends_on:
- divolte-kafka
ports:
- "8088:8088"
environment:
KSQL_LISTENERS: http://0.0.0.0:8088
KSQL_BOOTSTRAP_SERVERS: divolte-kafka:9092
KSQL_KSQL_LOGGING_PROCESSING_STREAM_AUTO_CREATE: "true"
KSQL_KSQL_LOGGING_PROCESSING_TOPIC_AUTO_CREATE: "true"
# ksql cli
ksqldb-cli:
image: confluentinc/ksqldb-cli:0.20.0
restart: always
container_name: ksqldb-cli
depends_on:
- divolte-kafka
- ksqldb-server
entrypoint: /bin/sh
tty: true

Answer 1

I have set in ksqldb-server in /etc/ksqldb/ksql-server.properties file
Well, you're never using this file inside Docker
You need to add a variable for it
KSQL_KSQL_SCHEMA_REGISTRY_URL: "schema-registry:8081"
Also, you should use Kafka on the registry, not deprecated Zookeeper, with property KSQL_KAFKASTORE_BOOTSTRAP_SERVERS