--- - name: Set the hostname hostname: name={{ hostname }} when: hostname is defined tags: [ 'bootstrap', 'set_hostname' ] - name: Add the hostname to /etc/hosts shell: grep -v {{ ansible_default_ipv4.address }} /etc/hosts > /etc/hosts.tmp ; echo "{{ ansible_default_ipv4.address }} {{ hostname }} {{ ansible_hostname }}" >> /etc/hosts.tmp ; /bin/mv /etc/hosts.tmp /etc/hosts when: hostname is defined tags: [ 'bootstrap', 'set_hostname' ]