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coreos_pxe_install.md

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#coreos pxe install

root@PXE:/srv/tftp# tree 
.
├── coreos-installer
│   ├── coreos_production_pxe_image.cpio.gz
│   ├── coreos_production_pxe_image.cpio.gz.sig
│   ├── coreos_production_pxe.vmlinuz
│   └── coreos_production_pxe.vmlinuz.sig
├── pxelinux.0
└-─ pxelinux.cfg
    └── default

* pxelinux.0 can be downloaded from debian boot install's file.
  • pxelinux.cfg/default
default coreos
prompt 1
timeout 15

display boot.msg

label coreos
  menu default
  kernel coreos-installer/coreos_production_pxe.vmlinuz
  append initrd=coreos-installer/coreos_production_pxe_image.cpio.gz cloud-config-url=http://192.168.0.1/pxe-cloud-config.yml console=tty1 coreos.autologin=tty1 sshkey="ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQCzSMv2Zv9l.... [email protected]"
  • pxe-cloud-config.yml
coreos:
  units:
    - name: etcd.service
      command: start
    - name: fleet.service
      command: start
    - name: 00-eth0.network
      runtime: true
      content: |
        [Match]
        Name=en*

        [Network]
        Address=192.168.0.15/24
        Gateway=192.168.0.1
ssh_authorized_keys:
  - ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQCzSMv2Zv9lZtsd+YQCAdqr2zcCJCNP31tnxKvFquVokoVPljR5...
  • /etc/dhcp/dhcpd.conf
default-lease-time 600;
max-lease-time 7200;

allow booting;
allow bootp;

subnet 192.168.0.0 netmask 255.255.255.0 {
    range dynamic-bootp 192.168.0.3 192.168.0.253;
    filename "pxelinux.0";
    option domain-name "yourdomain.com";
    option domain-name-servers 114.114.114.114;
    option routers 192.168.0.1;
}
  • write to hard disk
sudo coreos-install -d /dev/sda -b 'http://10.10.16.218:8077'

Download

Script to download

function getListResult(filter){
	var aList= document.getElementsByTagName("a");
	var result= '';
	for(var i= 1; i<aList.length; i++){
		link = aList[i].href;
		if(link.indexOf(filter)!= -1){
		   var fileArr= link.split('/')
		   var fileName= fileArr[fileArr.length-1]
		   var line= 'wget '+ link+ ' -O '+ fileName;
			result += line + '\n';
		}
	}
	return result;
}

console.log(getListResult('pxe'))
console.log(getListResult('production_image'))
  • Example



wget http://stable.release.core-os.net/amd64-usr/current/coreos_production_image.bin.bz2 -O coreos_production_image.bin.bz2
wget http://stable.release.core-os.net/amd64-usr/current/coreos_production_image.bin.bz2.DIGESTS -O coreos_production_image.bin.bz2.DIGESTS
wget http://stable.release.core-os.net/amd64-usr/current/coreos_production_image.bin.bz2.DIGESTS.asc -O coreos_production_image.bin.bz2.DIGESTS.asc
wget http://stable.release.core-os.net/amd64-usr/current/coreos_production_image.bin.bz2.DIGESTS.sig -O coreos_production_image.bin.bz2.DIGESTS.sig
wget http://stable.release.core-os.net/amd64-usr/current/coreos_production_image.bin.bz2.sig -O coreos_production_image.bin.bz2.sig
wget http://stable.release.core-os.net/amd64-usr/current/coreos_production_image_contents.txt -O coreos_production_image_contents.txt
wget http://stable.release.core-os.net/amd64-usr/current/coreos_production_image_contents.txt.sig -O coreos_production_image_contents.txt.sig
wget http://stable.release.core-os.net/amd64-usr/current/coreos_production_image_packages.txt -O coreos_production_image_packages.txt
wget http://stable.release.core-os.net/amd64-usr/current/coreos_production_image_packages.txt.sig -O coreos_production_image_packages.txt.sig



wget http://stable.release.core-os.net/amd64-usr/current/coreos_production_pxe.DIGESTS -O coreos_production_pxe.DIGESTS
wget http://stable.release.core-os.net/amd64-usr/current/coreos_production_pxe.DIGESTS.asc -O coreos_production_pxe.DIGESTS.asc
wget http://stable.release.core-os.net/amd64-usr/current/coreos_production_pxe.DIGESTS.sig -O coreos_production_pxe.DIGESTS.sig
wget http://stable.release.core-os.net/amd64-usr/current/coreos_production_pxe.README -O coreos_production_pxe.README
wget http://stable.release.core-os.net/amd64-usr/current/coreos_production_pxe.README.sig -O coreos_production_pxe.README.sig
wget http://stable.release.core-os.net/amd64-usr/current/coreos_production_pxe.sh -O coreos_production_pxe.sh
wget http://stable.release.core-os.net/amd64-usr/current/coreos_production_pxe.sh.sig -O coreos_production_pxe.sh.sig
wget http://stable.release.core-os.net/amd64-usr/current/coreos_production_pxe.vmlinuz -O coreos_production_pxe.vmlinuz
wget http://stable.release.core-os.net/amd64-usr/current/coreos_production_pxe.vmlinuz.sig -O coreos_production_pxe.vmlinuz.sig
wget http://stable.release.core-os.net/amd64-usr/current/coreos_production_pxe_image.cpio.gz -O coreos_production_pxe_image.cpio.gz
wget http://stable.release.core-os.net/amd64-usr/current/coreos_production_pxe_image.cpio.gz.DIGESTS -O coreos_production_pxe_image.cpio.gz.DIGESTS
wget http://stable.release.core-os.net/amd64-usr/current/coreos_production_pxe_image.cpio.gz.DIGESTS.asc -O coreos_production_pxe_image.cpio.gz.DIGESTS.asc
wget http://stable.release.core-os.net/amd64-usr/current/coreos_production_pxe_image.cpio.gz.sig -O coreos_production_pxe_image.cpio.gz.sig