fix hostname of cobald slurm node

made cobald be able to run slurm jobs, previously failing with
permission denied.

roles/cobald/tasks/main.yml

@@ -118,9 +118,6 @@
     networks:
     - name: "{{cobald_docker_network}}"
     networks_cli_compatible: True
-#    env:
-#      slurmuser: "{{slurm_user}}"
-#    privileged: "{{ container_privileged | bool }}"
     state: started
     detach: True
     cleanup: True

roles/cobald/vars/cobald-slurm.yml

@@ -1,5 +1,5 @@
 cobald_image_tag: slurm
-cobald_docker_base_image: "slurm:slurmd"
+cobald_docker_base_image: "{{slurm.base_image}}"
 cobald_docker_default_command: False
 cobald_docker_network: "{{slurm.network}}"
 cobald_domainname: "{{slurm.domain}}"