Scale docker compose is causing Port Conflicts

[srirammageswaran]

Hi ,

Scaling docker container in docker compose having a port mapping is causing a port already in use error.

Error below docker-compose.exe scale mywildfly=2
The "mywildfly" service specifies a port on the host. If multiple containers for this service are created on a single host, the port will clash.
Creating and starting 2 ... error

ERROR: for 2 failed to create endpoint dockerfiles_mywildfly_2 on network dockerfiles_default: Bind for 0.0.0.0:8080 failed: port is already allocated

docker-compose.yml is

version: '2'
services:
mycouchbase:
container_name: "db"
image: arungupta/couchbase
ports:
- 8091:8091
- 8092:8092
- 8093:8093
- 11210:11210
mywildfly:
image: arungupta/wildfly-couchbase-javaee7
environment:
- COUCHBASE_URI=db
ports:
- 8080:8080

and the command to scale is : docker-compose.exe scale mywildfly=2.

@kirsid

[arun-gupta]

scale has not been tested and included in the instructions yet.