Author: jonas

While I’d normally use “hostnamectl set-hostname ” to modify the hostname of a Linux box, that doesn’t work for Ubuntu 18.04. The hostname will remain unchanged. Instead, modify as follows.

In /etc/cloud/cloud.cfg, modify “preserve_hostname” from “false” to “true”:

vi /etc/cloud/cloud.cfg

Modify hostname to the value you want in /etc/hostname:

vi /etc/hostname

Reboot

The recently released version 1.1 adds streaming Server Configuration File (SCP) support, enhanced RAID creation and many other goodies! See the release notes here for details: Dell EMC Ansible modules version 1.1

Below are some installation instructions (in particular for those who have been using the original Ansible modules).

System used:
CentOS 7.5

Get the new Ansible modules for iDRAC off Github:

git clone https://github.com/dell/Dell-EMC-Ansible-Modules-for-iDRAC.git

Get the Dell EMC OpenManage Python SDK off Github:

git clone https://github.com/dell/omsdk.git

Remove some packages or we will run into errors during the SDK install:
NOTE: This will uninstall Ansible. Backup your /etc/ansible/hosts file prior to Ansible removal!

[jonas@centossysmgmt01 omsdk]$ sudo yum remove python2-enum34.noarch python-enum34.noarch PyYAM

Install the Dell EMC OpenManage Python SDK prerequisites:

[jonas@centossysmgmt01 Redfish]$ cd omsdk/
[jonas@centossysmgmt01 omsdk]$ sudo -H pip install -r requirements-python2x.txt

Reinstall Ansible:

 [jonas@centossysmgmt01 omsdk]$ sudo yum install ansible -y

Install wheel:

 [jonas@centossysmgmt01 omsdk]$ sudo -H pip install wheel

Build .whl file:

 [jonas@centossysmgmt01 omsdk]$ sh ./build.sh 1.2 345

Install the newly built module:

[jonas@centossysmgmt01 omsdk]$ cd dist/
[jonas@centossysmgmt01 dist]$ sudo pip install omsdk-1.2.345_-py2.py3-none-any.whl

Install the new Dell EMC Ansible modules for iDRAC:

[jonas@centossysmgmt01 dist]$ cd ../../Dell-EMC-Ansible-Modules-for-iDRAC/
[jonas@centossysmgmt01 Dell-EMC-Ansible-Modules-for-iDRAC]$
[jonas@centossysmgmt01 Dell-EMC-Ansible-Modules-for-iDRAC]$ sudo python ./install.py
Dell EMC OpenManage Ansible Modules installation has started.
Checking prerequisites...

OpenManage Software Development Kit is installed.
Installing Dell EMC OpenManage Ansible Modules specific folders and files...
SUCCESS: Dell EMC OpenManage Ansible Modules is installed successfully.

All done! The new Ansible modules are installed.

Modifying /etc/ansible/hosts:
The previous version of the Dell EMC Ansible modules for iDRAC required the following format:

[myhosts]
# hostname OOB controller IP/NAME
r730xd baseuri=192.168.1.1
r620 baseuri=192.168.1.2

The new modules require some different variables:

[hosts]
# hostname     OOB controller IP/NAME
r730xd         idrac_ip=192.168.1.1 idrac_user=root idrac_pwd=calvin
r620           idrac_ip=192.168.1.2 idrac_user=root idrac_pwd=calvin
fm120_1a       idrac_ip=192.168.1.11 idrac_user=root idrac_pwd=calvin
fm120_1c       idrac_ip=192.168.1.13 idrac_user=root idrac_pwd=calvin
fm120_1d       idrac_ip=192.168.1.14 idrac_user=root idrac_pwd=calvin
#fm120_2b       idrac_ip=192.168.1.16 idrac_user=root idrac_pwd=calvin
fm120_2c       idrac_ip=192.168.1.17 idrac_user=root idrac_pwd=calvin
#fm120_2d       idrac_ip=192.168.1.18 idrac_user=root idrac_pwd=calvin
fc620           idrac_ip=192.168.1.19 idrac_user=root idrac_pwd=calvin

Trying it out:

Working perfectly 🙂

Using an Arduino UNO and 8 strips of Neopixel ws2812 strips (60 LED/m) I was able to recreate the awesome LED sign created by Josh here: https://youtu.be/k-SYMPO8-f8

Needed some text to test it and picked the cf push haiku by Onsi Fakhouri:

“cf push haiku here is my source code run it on the cloud for me i do not care how”

By default, if the new installer is utilized when deploying Ubuntu server 18.04, the /etc/apt/sources.list will contain only two entries. This doesn’t cover much, so to expand it to be a bit more useful we replace it with:

deb http://jp.archive.ubuntu.com/ubuntu/ bionic main restricted
deb http://jp.archive.ubuntu.com/ubuntu/ bionic-updates main restricted
deb http://jp.archive.ubuntu.com/ubuntu/ bionic universe
deb http://jp.archive.ubuntu.com/ubuntu/ bionic-updates universe
deb http://jp.archive.ubuntu.com/ubuntu/ bionic multiverse
deb http://jp.archive.ubuntu.com/ubuntu/ bionic-updates multiverse
deb http://jp.archive.ubuntu.com/ubuntu/ bionic-backports main restricted universe multiverse
deb http://security.ubuntu.com/ubuntu bionic-security main restricted
deb http://security.ubuntu.com/ubuntu bionic-security universe
deb http://security.ubuntu.com/ubuntu bionic-security multiverse

Note that this is for Japan (“jp”). Change this to “us” or similar to match your region if not in Japan.

If your system is using netplan for network configuration, change settings in “/etc/netplan/50-cloud-init.yaml”:

DHCP:

jonas@kube-c1-n3:~$ cat /etc/netplan/50-cloud-init.yaml
network:
    ethernets:
        enp0s3:
            addresses: []
            dhcp4: true
    version: 2
jonas@kube-c1-n3:~$ sudo netplan apply

jonas@kube-c1-n3:~$ cat /etc/netplan/50-cloud-init.yaml
network:
    ethernets:
        enp0s3:
            addresses: [192.168.10.103/24]
            gateway4: 192.168.10.1
            dhcp4: no
    version: 2
jonas@kube-c1-n3:~$ sudo netplan apply