Added a commented example of a centos8 build
This commit is contained in:
daniel
Daniel Koschützki
parent
ed54475a60
commit
5533ec97a5
127
docs/builders/Commented-Example.md
Normal file
127
docs/builders/Commented-Example.md
Normal file
@ -0,0 +1,127 @@
|
||||
---
|
||||
layout: "docs"
|
||||
page_title: "XenServer-iso Commented Example"
|
||||
description: |-
|
||||
This is a Commented example for how to use the xenserver-iso Packer Builder.
|
||||
This Example is written in hcl
|
||||
---
|
||||
|
||||
# What's this
|
||||
This Example builds a vanilla Centos 8 Template. No Provisioning or Post-Processing will be done.
|
||||
|
||||
If you want to run this example, you have to replace the following variables with your own values.
|
||||
```hcl
|
||||
remote_host = "xenserver.example.org"
|
||||
remote_username = "root"
|
||||
remote_password = "very-secret-password"
|
||||
sr_iso_name = "Local-ISO"
|
||||
sr_name = "Local-SR"
|
||||
tools_iso_name = "guest-tools.iso"
|
||||
```
|
||||
|
||||
## Parts of this example
|
||||
This examples composes the following files from the examples folder
|
||||
|
||||
* [centos8-example.pkr.hcl](../../examples/http/centos/centos8-example.pkr.hcl)
|
||||
* [ks-centos8-example.cfg](../../examples/http/centos/ks-centos8-example.cfg)
|
||||
|
||||
|
||||
## Explanation of centos8-example.pkr.hcl
|
||||
|
||||
* `source "xenserver-iso" "example" { } ` directs packer to configure an Artifact named example using the `xenserver-iso` builder
|
||||
|
||||
* `iso_url = "http://mirrors.ocf.berkeley.edu/centos/8.3.2011/isos/x86_64/CentOS-8.3.2011-x86_64-dvd1.iso" ` use the iso obtainable from this url
|
||||
* `iso_checksum_type = "sha1"` the checksum is of type sha1
|
||||
* `iso_checksum = "aaf9d4b3071c16dbbda01dfe06085e5d0fdac76df323e3bbe87cce4318052247"` The checksum for the ISO.
|
||||
|
||||
* `sr_name = "Local-SR"` store the vmdisk used during install on the SR named `Local-SR`
|
||||
* `sr_iso_name = "Local-ISO"` store the iso used during install on the ISO-SR named `Local-ISO`
|
||||
* `tools_iso_name = "guest-tools.iso"` mount the guest-tools iso with the name `guest-tools.iso`
|
||||
|
||||
* `remote_host = "xenserver.example.org"` the ipadress or fqdn of the xenserver. This should be the pool primary
|
||||
* `remote_username = "root"` the user with witch to connect.
|
||||
* `remote_password = "very-secret-password"` the password for the user.
|
||||
|
||||
* `vm_name = "packer-centos8-example"` How packer will name the vm.
|
||||
* `vm_description = "This is an example."` The description field of the vm
|
||||
* `vm_memory = 4096` the Amount of RAM, in MB
|
||||
* `disk_size = 4096` the Size of the Primary Disk in MB
|
||||
|
||||
* `http_directory = "examples/http/centos8'` Packer will spin up a http-server for serving files to the installing vm. the kickstart file `ks-centos8-examples.cfg` is in this directory
|
||||
* `boot_wait = "10s'` Wait for 10s after starting the VM before typeing the `boot_command`
|
||||
* `boot_command = ["<tab> text ks=http://{{ .HTTPIP }}:{{ .HTTPPort }}/ks-centos8-examples.cfg<enter><wait>"'`
|
||||
* The command to type into the installing vm.
|
||||
* `<tab>` a tab Character `\t`
|
||||
* `text ks=http://` character literals
|
||||
* `{{ .HTTPIP }}` will be replaced by the local ip-address.
|
||||
* `:` character literal
|
||||
* `{{ .HTTPPort }}` will be replaced by the local port. Will be randomly selectet between 8000 and 9000
|
||||
* `/ks-centos8-examples.cfg` character literals
|
||||
* `<enter>` an enter character
|
||||
* `<wait>` wait for 1s
|
||||
|
||||
* `ssh_username = "root"` The ssh user packer uses to connect to the VM
|
||||
* `ssh_password = "centos"` The ssh password packer uses to connect to the VM
|
||||
* `ssh_wait_timeout = "10m"` consider install failed if unable to connect via ssh 10m into the build
|
||||
* `shutdown_command = "/sbin/shutdown"` After connection via ssh issue this command to shut down the vm
|
||||
* `output_directory = "packer-centos8-local"` Store the resulting xva file in this directory
|
||||
* `keep_vm = "on_success"` Create a template with the vm after a successfull build
|
||||
|
||||
* `build { }` Tell packer what to do while builing
|
||||
* `sources = ["xenserver-iso.example"]` Build the `xenserver.example` without changing any configuration.
|
||||
|
||||
## Explanation of ks-centos8-examples.cfg
|
||||
```
|
||||
eula --agreed
|
||||
# agree to the eula of centos
|
||||
|
||||
lang en-US.UTF-8
|
||||
# set the system-locale to en-US.UTF-8
|
||||
|
||||
timezone Europe/Berlin
|
||||
# set the timezone to Europe/Berlin
|
||||
|
||||
url --url="http://mirror.centos.org/centos/8.3.2011/BaseOS/x86_64/os/"
|
||||
# Primary installation mirror
|
||||
|
||||
text
|
||||
skipx
|
||||
# Install in textmode, do not configure X11
|
||||
|
||||
firstboot --disable
|
||||
# Dont do any configuration on first boot
|
||||
|
||||
rootpw --plaintext centos
|
||||
# set the reboot to "centos"
|
||||
|
||||
firewall --enabled --ssh
|
||||
# enable the firewall, allow ssh
|
||||
|
||||
selinux --enforcing
|
||||
# ensure selinux is in enforcing mode
|
||||
|
||||
logging --level=info
|
||||
# Installation logging level
|
||||
|
||||
network --bootproto=dhcp --device=eth0 --onboot=on
|
||||
# configure the network with dhcp on install
|
||||
|
||||
clearpart --all
|
||||
zerombr
|
||||
bootloader --location=mbr
|
||||
# Clear all partitioning on all disk
|
||||
# Zero the MBR section
|
||||
# Install the bootloader into the MBR
|
||||
|
||||
part / --asprimary --fstype="ext4" --size=1024 --grow
|
||||
# / shall the a primary partition with ext4
|
||||
# with a mimimul size of 1024 MB, but growing to the actual size of the disk
|
||||
|
||||
%packages
|
||||
@base
|
||||
%end
|
||||
# install all packages of the core group
|
||||
|
||||
reboot --eject
|
||||
# After finishing eject all CD-Disk and reboot
|
||||
```
|
||||
Loading…
Reference in New Issue
Block a user