Docker Compose¶

The Docker Compose configuration is located at config/docker-compose.yml and defines two IBM MQ container services with REST API access.

Services¶

QM1¶

Property	Value
Image	`icr.io/ibm-messaging/mq:latest`
Hostname	`qm1`
MQ listener port	`1414` (host: `1414`)
REST API port	`9443` (host: `9443`)
Queue manager name	`QM1`

QM2¶

Property	Value
Image	`icr.io/ibm-messaging/mq:latest`
Hostname	`qm2`
MQ listener port	`1414` (host: `1415`)
REST API port	`9443` (host: `9444`)
Queue manager name	`QM2`

Environment variables¶

Both services accept the same environment variables for port overrides:

Variable	Default	Description
`MQ_IMAGE`	`icr.io/ibm-messaging/mq:latest`	Container image
`QM1_MQ_PORT`	`1414`	Host port for QM1 MQ listener
`QM1_REST_PORT`	`9443`	Host port for QM1 REST API
`QM2_MQ_PORT`	`1415`	Host port for QM2 MQ listener
`QM2_REST_PORT`	`9444`	Host port for QM2 REST API

Volumes¶

Each queue manager has a dedicated named volume for persistent data:

qm1data — mounted at /var/mqm in the QM1 container
qm2data — mounted at /var/mqm in the QM2 container

The mqwebuser.xml configuration file is bind-mounted read-only into both containers at the Liberty web server configuration path.

Health checks¶

Both containers use the dspmq command as a health check:

healthcheck:
  test: ["CMD", "dspmq", "-m", "QM1"]  # or QM2
  interval: 10s
  timeout: 5s
  retries: 12

The mq_start.sh script waits for both containers to report healthy before returning.

Network¶

Both services share the mq-dev-net Docker network, which allows the containers to communicate using their hostnames (qm1, qm2). This is required for the cross-QM sender/receiver channels.