54 lines
2.8 KiB
Markdown
54 lines
2.8 KiB
Markdown
# Initial Infrastructure Setup
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This document describes the steps needed for the initial infrastructure setup (in case everything needs to be bootstrapped from scratch)
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This would be the sequence the systems need to be set up:
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- lx-boot-xx (boot.psi.ch, boot-dmz.psi.ch)
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- lx-repos-xx (repos.psi.ch, repos-dmz.psi.ch)
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- lx-sysdb-xx (sysdb.psi.ch)
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- lx-puppet-xx (puppet.psi.ch)
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The steps involved to bootstrap the boot server and the repository server are the following:
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1. Create the VM in vcenter (Make sure secure boot is disabled!)
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1. Get the latest RedHat RHEL iso from somewhere (i.e. ETH Red Hat Satellite or directly from [Red Hat](https://access.redhat.com/downloads))
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- There are two ISOs, one ~900MB and one ~11GB (RHEL8). The smaller one is able to boot and start the installation of the system, however it requires a network based repository for the installation (i.e. the content of the unpacked ISO need to be available via http(s))
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With the bigger one the system can be completely installed.
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1. Generate a kickstart file for the system in the https://git.psi.ch/linux-infra/bootstrap repository
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- For the DMZ server the ip of the DNS server needs to be different in DMZ `--nameserver=192.168.70.5`
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1. Create a new iso including the generated kickstart file via the [mkksiso](https://weldr.io/lorax/mkksiso.html) utility:
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```
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mkksiso lx-boot-dmz-01.psi.ch.ks rhel-8.7-x86_64-boot.iso lx-boot-dmz-01-rhel-8.7-x86_64-boot.iso
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```
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Alternatively create a second iso file with just the kickstart file. Place the kickstart file as `ks.cfg` in an directory and run:
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```
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mkisofs -volid OEMDRV -output $TARGET_HOSTNAME-kickstart.iso $DIR_WITH_KICKSTART_FILE
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```
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1. Remote Login (via RDP) to vmsmgt.psi.ch and mount the ISO to the VM
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1. Make the generated iso accessible to the machine vmsmgt.psi.ch
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1. Open vcenter.psi.ch in the browser, search the virtual machine you want to mount the ISO to. Click on __Launch Remote Console__
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1. This will open the VMWare Remote Console program. To mount the ISO do the following (Pay attention that the __"Connect at Boot"__ option is checked):
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1. If you have a separate kickstart iso file, you need two CD drives and connect both iso files.
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1. Start the VM to trigger the install
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```{note}
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For the initial setup of boot and repos server in the DMZ a temporary firewall access rule need to be enabled to the PSI internal server https://repos.psi.ch
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```
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## References
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- https://weldr.io/lorax/mkksiso.html
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- https://access.redhat.com/solutions/60959
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- https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/performing_an_advanced_rhel_8_installation/starting-kickstart-installations_installing-rhel-as-an-experienced-user#doc-wrapper
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