Passing Host's Hostname to Docker Container

May 13, 2016

There are two simple ways to pass hostname of the machine running docker daemon to the docker container using Ansible.

  1. Using Environmental Variable
- name: Start application container
  docker:
    name: my_application
    image: my_username/my_application
    env:
        HOST_HOSTNAME: "{{ "{{ ansible_hostname " }} }}"
  1. Setting the hostname of the docker container the same as of the host running it.
- name: Start application container
  docker:
    name: my_application
    image: my_username/my_application
    hostname: "{{ "{{ ansible_hostname " }} }}"
Ganessh Kumar R P © 2020 • All rights reserved.