-e UPDATE_HOSTNAME=true causes error /work/start_server.sh: line 15: hostname: command not found

[covener]

Saw this error scroll by

/work/start_server.sh: line 15: hostname: command not found

... while using

docker run --name twasv9 -h twasv9 -v $(pwd)/PASSWORD:/tmp/PASSWORD -p 9043:9043 -p 9443:9443 -e UPDATE_HOSTNAME=true -d ibmcom/websphere-traditional:latest

It seems to be harmless but while waiting for ISC to come up I was afraid it was an issue.

I am using:

ibmcom/websphere-traditional   latest     sha256:76d87075809ed63e764aa47964a87f57af6278063542e088c7b066de40cc1784   6752978e5b0c   5 days ago   1.88GB

It seems like the dockerhub doc no longer has -e UPDATE_HOSTNAME=true in examples, but I stashed it away in a cheatsheet ages ago. I guess it maybe broke under UBI-min or something like that.

[anborg]

I wanted to bind to a host name so I can use nginx for reverse proxy. Same error 'hostname' not found.

Would be great if you could test with a docker compose like below

version: '3'
services:
  ibm-was:
    image: ibmcom/websphere-traditional:latest
    container_name: ibmwas
    environment:
      UPDATE_HOSTNAME: "true"
      SERVER_NAME: "ibmwas.pkml01.local" #Put the FQDN here.

    volumes: 
      - ./PASSWORD:/tmp/PASSWORD
#    ports:
#      - 9043:9043 # use nginx-proxy-mgr, no need to expose
#      - 9443:9443
    networks:
      - my-org-network

networks:
  my-org-network:
    name: my-org-network

[covener]

https://github.com/WASdev/ci.docker.websphere-traditional#how-to-run-this-image still has this variable, latest images still report the hostname problem

[sakerl]

I've just had the same problem while attempting to set up a SIBLink between two containers
I'm guessing the problem is in the start_server.sh script in the line:

wsadmin.sh -lang jython -conntype NONE -f /work/updateHostName.py ${NODE_NAME:-"DefaultNode01"} $(hostname)

Hacking this to be ${HOST_NAME} seems to fix things for me, but I don't know whether there's anything else being done with 'hostname' elsewhere in the scripts.