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Here are some instructions on how to build a RHEL VM using Nutanix and customizing the install with cloud-init
DEPLOY RHEL using cloud-int to customize some common settings
Here are some example cloud-init files that have worked for me
#cloud-config
keyboard:
layout: us
manage_etc_hosts: true
hostname: nginx-rhel-tst01
chpasswd:
list: |
root:Pa55w0rD!
expire: false
runcmd:
- nmcli con modify "System eth0" ipv4.method manual ipv4.address 10.11.12.13 gw4 10.11.12.1 ipv4.dns "8.8.8.8 8.8.4.4"
- nmcli con down "System eth0"
- nmcli con up "System eth0"
- subscription-manager register --org="MWG" --activationkey="RHEL_8"Another cloud-init file with a bit more for reference for your cloud-init file
networkData: |
version: 2
config:
- type: physical
name: enp1s0
subnets:
- type: static
address: 10.11.12.13/27
gateway: 10.11.12.1
- type: physical
name: enp2s0
subnets:
- type: static
address: 10.11.12.43/27
gateway: 10.11.12.33
- type: nameserver
address:
- 8.8.8.8
- 8.8.4.4
- 9.9.9.9
userData: | -
#cloud-config
user: cloud-user
password: 730a-xb5w-issv
chpasswd: { expire: False }
write_files:
- path: /etc/vpm/user_data
content: |
token: eyJhbGciOiJIUzI1NiIsInR5cC
owner: root
permissions: '0644'
- path: /etc/vpm/config.yaml
permissions: '0644'
owner: root
encoding: base64
content: |
S3ViZXJuZXRlczoKICBFdGNkVXNlVExTOiB0cnVlCiAgU2VydmVyOiB2aXAKVnBtOgogIENsdXN0ZXJOYW1lOiBDSEFOR0UtTUUKICBMYXRpdHVkZTogMjkuNDY2NjEwCiAgTG9uZ2l0dWRlOiAtOTguNjg4MTkwCiAgTnRwU2VydmVyczoKICAtIG50cDEubXl3aXNlZ3V5cy5jb20KICAtIG50cDIubXl3aXNlZ3V5cy5jb20=YUM/DNF Update
When you first bootup you need to update your repos and here are the commands I first run that seem to work for me
First check your repolist by running sudo yum -v repolist
sudo yum -v repolist Loaded plugins: builddep, changelog, config-manager, copr, debug, debuginfo-install, download, generate_completion_cache, groups-manager, needs-restarting, notify-packagekit, playground, product-id, repoclosure, repodiff, repograph, repomanage, reposync, subscription-manager, system-upgrade, uploadprofile Not root, Subscription Management repositories not updated YUM version: 4.14.0 cachedir: /var/tmp/dnf-https://eventguyz.com/wp-content/uploads/2024/05/hosang-i-t-python-02.png-lcfs6afa Red Hat Enterprise Linux 9 for x86_64 - BaseOS (RPMs) 27 MB/s | 32 MB 00:01 Red Hat Enterprise Linux 9 for x86_64 - AppStream (RPMs) 28 MB/s | 41 MB 00:01 infratools_ansible 291 kB/s | 155 kB 00:00 Last metadata expiration check: 0:00:01 ago on Thu Oct 17 05:20:52 2024. Repo-id : MYWISEGUYS_infrtools_ansible_infratools_ansible Repo-name : infratools_ansible Repo-revision : 1680861588 Repo-updated : Fri Apr 7 05:59:48 2023 Repo-pkgs : 3 Repo-available-pkgs: 3 Repo-size : 34 M Repo-baseurl : https://capsule-us-east-2.9395.aws.mywiseguys.com/pulp/content/MYWISEGUYS/Library/RHEL_9_CCV/custom/infrtools_ansible/infratools_ansible Repo-expire : 1 second(s) (last: Thu Oct 17 05:20:52 2024) Repo-filename : /etc/yum.repos.d/redhat.repo Repo-id : rhel-9-for-x86_64-appstream-rpms Repo-name : Red Hat Enterprise Linux 9 for x86_64 - AppStream (RPMs) Repo-revision : 1727703639 Repo-updated : Mon Sep 30 09:40:38 2024 Repo-pkgs : 19501 Repo-available-pkgs: 18789 Repo-size : 67 G Repo-baseurl : https://capsule-us-east-2.9395.aws.mywiseguys.com/pulp/content/MYWISEGUYS/Library/RHEL_9_CCV/content/dist/rhel9/9/x86_64/appstream/os Repo-expire : 1 second(s) (last: Thu Oct 17 05:20:45 2024) Repo-filename : /etc/yum.repos.d/redhat.repo Repo-id : rhel-9-for-x86_64-baseos-rpms Repo-name : Red Hat Enterprise Linux 9 for x86_64 - BaseOS (RPMs) Repo-revision : 1727703439 Repo-updated : Mon Sep 30 09:37:18 2024 Repo-pkgs : 7061 Repo-available-pkgs: 7061 Repo-size : 17 G Repo-baseurl : https://capsule-us-east-2.9395.aws.mywiseguys.com/pulp/content/MYWISEGUYS/Library/RHEL_9_CCV/content/dist/rhel9/9/x86_64/baseos/os Repo-expire : 1 second(s) (last: Thu Oct 17 05:20:40 2024) Repo-filename : /etc/yum.repos.d/redhat.repo Total packages: 26565
show what repos are enabled
sudo yum repolist enabled
sudo yum update -y
NTP Setup
timedatectl status shows if System clock in synchronized and here it says No and the time is about 4 hours behind the actual time
timedatectl status
Local time: Thu 2024-10-17 05:32:07 EDT
Universal time: Thu 2024-10-17 09:32:07 UTC
RTC time: Thu 2024-10-17 09:32:06
Time zone: America/New_York (EDT, -0400)
System clock synchronized: no
NTP service: active
RTC in local TZ: no
First we need to make sure we have chrony installed and how I do that is just see if it will install. I run sudo dnf install chrony and you see it says its already installed
sudo dnf install chrony Updating Subscription Management repositories. Red Hat Enterprise Linux 9 for x86_64 - BaseOS (RPMs) 22 kB/s | 4.1 kB 00:00 Red Hat Enterprise Linux 9 for x86_64 - AppStream (RPMs) 26 kB/s | 4.5 kB 00:00 infratools_ansible 12 kB/s | 2.0 kB 00:00 Package chrony-4.5-1.el9.x86_64 is already installed. Dependencies resolved. Nothing to do. Complete!
Next step is to make sure that chrony is pointing to the ntp servers you want chrony pointing to so edit /etc/chrony.conf
sudo vi /etc/chrony.conf # Use public servers from the pool.ntp.org project. # Please consider joining the pool (https://www.pool.ntp.org/join.html). pool 2.rhel.pool.ntp.org iburst server ntp2.mywiseguys.corp server ntp1.mywiseguys.corp
Now lets restart chronyd and make sure chronyd starts up everytime the VM reboots
sudo systemctl restart chronyd sudo systemctl enable chronyd
You can check to see if chronyd is connecting to the sources you provided by running sudo chronyc sources
sudo chronyc sources MS Name/IP address Stratum Poll Reach LastRx Last sample =============================================================================== ^? 99-119-214-210.lightspee> 0 7 0 - +0ns[ +0ns] +/- 0ns ^? t1.time.bf1.yahoo.com 0 7 0 - +0ns[ +0ns] +/- 0ns ^? time.ecansol.net 0 7 0 - +0ns[ +0ns] +/- 0ns ^? ovh.maxhost.io 0 7 0 - +0ns[ +0ns] +/- 0ns ^? fnt1lvmap1500.mywiseguys.corp 2 6 1 63 -14400s[-14400s] +/- 33ms ^? ntp1.mywiseguys.corp 2 6 1 63 -14400s[-14400s] +/- 26ms
Here we see the last two are connected to Stratum 2 servers so we should have accurate time now sync’d from NTP servers. Let’s check with timedatectl status
timedatectl status
Local time: Thu 2024-10-17 09:35:13 EDT
Universal time: Thu 2024-10-17 13:35:13 UTC
RTC time: Thu 2024-10-17 13:35:13
Time zone: America/New_York (EDT, -0400)
System clock synchronized: yes
NTP service: active
RTC in local TZ: no
Here we have the accurate time and System clock synchronized says yes so NTP is good to go
