Build RHEL 7 image with salt-cloud

[Gavin Bundt]

I am having a hard time building a complete image of RHEL 7 from a template using salt-cloud.  I have been using RHEL 6 at our company to build them for a while and now we're migrate to RHEL 7.  I can successfully build and image from the template but the network adapter and ip specs aren't being applied.  This prevents the rhel scripts from running and installing salt-minion in the process.  If anyone has an example profile and map files, it would help a lot.  This is what I have

Profile vmware.conf

rhel7:

  provider: vcenter01

  clonefrom: Baseline_RHEL_7.3

  domain: dev.com

  dns_servers:

    - x.x.x.x

  datacenter: DEV

  cluster: DEV-Cluster

  datastore: MainCluster

  folder: DEV

  resourcepool: DEV

  template: False

  power_on: True

  hardware_version: 13

  image: RHEL 7.3 64bit

map file

rhel7:

  - SOADEV-192-rhel7test:

      ## Resource arguments

      num_cpus: 2

      memory: 8GB

      devices:

       network:

        Network adapter 1:

         name: DPortGroup-DEV

         adapter_type: vmxnet3

         switch_type: distributed

         ip: x.x.x.x

         gateway: [x.x.x.x]

         subnet_mask: 255.255.255.0

         domain: dev.com

      script: RHEL7.sh

      deploy: True

      customization: True

      ssh_username: xxxxxxx

      password: xxxxxxxx

      minion:

        master: x.x.x.x

      file_map:

        /srv/salt/dev/files/meis-internal.repo: /etc/yum.repos.d/dev-internal.repo

        /srv/salt/dev/files/rhel7-internal.repo: /etc/yum.repos.d/rhel7-internal.repo

        /srv/salt/dev/files/saltstack.repo: /etc/yum.repos.d/saltstack.repo

        /srv/salt/dev/files/resolv.conf: /etc/resolv.conf

RHEL7.sh script file

#!/bin/bash

# This legacy script pre-dates the salt-bootstrap project. In most cases, the

# bootstrap-salt.sh script is the recommended script for installing salt onto

# a new minion. However, that may not be appropriate for all situations. This

# script remains to help fill those needs, and to provide an example for users

# needing to write their own deploy scripts.

#rpm -Uvh --force http://mirrors.kernel.org/fedora-epel/6/x86_64/epel-release-6-8.noarch.rpm

#yum -y install salt-minion --enablerepo epel-testing

yum -y install salt-minion

mkdir -p /etc/salt/pki

echo '{{ vm['priv_key'] }}' > /etc/salt/pki/minion.pem

echo '{{ vm['pub_key'] }}' > /etc/salt/pki/minion.pub

cat > /etc/salt/minion <<EOF

{{minion}}

EOF

systemctl enable salt-minion.service

systemctl start salt-minion.service

[Sebastien Wains]

We have been deploying RHEL7 for more than a year at work.

I've add issue with custom deploy scripts, while the bootstrap script provided by Salt works perfectly. I've filled a bug report back then https://github.com/saltstack/salt/issues/34547

Have you tried using the bootstrap script?

[Odysseaus]

I am looked into the script file but haven't used it.  Do you have instructions on how you configured network settings with it?  I am able to build a rhel 7 image with salt-cloud but unable to change any network settings.  I am wondering if there is something I need to change in my template.  My rhel 7 template is a minimum baseline install with no network configurations.  Thoughts?

[Odysseaus]

Ok, so I read more on bootstrap and it mainly just focuses on install the salt-minion on the distro of choice.  I actually don't have this problem because I deploy a custom RHEL7.sh script during the salt-cloud profile RHEL7 build.  If my template is pre-configured with an IP address than all works well but I need to be able to build multiple VMs at once and have salt-cloud apply different IP addresses per build.  I have this working fine for my RHEL6 template but RHEL7 doesn't accept the profile network configurations I give it.  My guess is there is something I need to pre-configure in the RHEL 7 template prior to using it to build future VMs.

On Friday, April 28, 2017 at 4:55:17 AM UTC-5, Sebastien Wains wrote:

[Odysseaus]

Found the fix.  Holy cow!!!  A manual install of vmware tools fixed updating the proper network adapter to the RHEL 7 vm.  The issue was with my template build and not salt-cloud configurations.  SOVLED!

[Sebastien Wains]

Ah yeah, all the networking setup is done once VMware tools are up and running.

When running salt-cloud in debug, it clearly shows that it is waiting for VMware tools to be running.