warewulf_CentOS7_Master - alex-aleyan/linux_wiki GitHub Wiki

systemctl isolate graphical.target

export ntp_server=$(hostname)
export server_ww_nic="enp0s8"
export ${server_ww_nic_ip}="192.168.1.10"
export ${server_ww_nic_mask}="255.255.255.0"

Setup the repos:

install_centos7_repos.sh

Disable firewall (interferes with warewulf)

• chkconfig firewalld off
  chkconfig firewalld status
  chkconfig firewalld --list
  

• systemctl stop firewalld
  systemctl disable firewalld
  systemctl status firewalld
  

• perl -pi -e "s/SELINUX=enforcing/SELINUX=disabled/" /etc/selinux/config

install warewulf:

• yum -y install ohpc-base
• yum -y install ohpc-warewulf

Configure ntpd utility:

• systemctl enable ntpd.service
• echo "server ${${server_ww_nic_ip}}" >> /etc/ntp.conf
• systemctl restart ntpd

Configure nics, database, http and dhcp services:

• perl -pi -e "s/device = eth1/device = ${server_ww_nic}/" /etc/warewulf/provision.conf
• perl -pi -e "s/^\s+disable\s+= yes/ disable = no/" /etc/xinetd.d/tftp
• ifconfig ${server_ww_nic} ${${server_ww_nic_ip}} netmask ${server_ww_nic_mask} up
  • vim /etc/sysconfig/network-scripts/ifcfg-${server_ww_nic}

    TYPE=Ethernet
    BOOTPROTO=static
    NAME=${server_ww_nic}
    IPADDR=${server_ww_nic_ip}
    NETMASK=${server_ww_nic_mask}
    NM_CONTROLLED=no
    DEVICE=${server_ww_nic}
    ONBOOT=yes
    

• echo "DHCPDARGS="${server_ww_nic}";" >> /etc/dhcp/dhcpd.conf
• systemctl restart xinetd
• systemctl enable mariadb.service
• systemctl restart mariadb
• systemctl enable httpd.service
• systemctl restart httpd
• systemctl enable dhcpd.service

Build BOS (Base OS) image (other OS')

• echo 'export CHROOT=/opt/ohpc/admin/images/centos7' >> /etc/bashrc
• mkdir -p $CHROOT
• wwmkchroot centos-7 $CHROOT

Import Files:

• wwsh file import /etc/passwd
• wwsh file import /etc/group
• wwsh file import /etc/shadow

Assemble bootstrap image:

• export WW_CONF=/etc/warewulf/bootstrap.conf
• echo "drivers += updates/kernel/" >> $WW_CONF
• echo "drivers += overlay" >> $WW_CONF
• wwbootstrap $(uname -r)
• wwvnfs --chroot $CHROOT

Adding a node

• echo "GATEWAYDEV=${server_ww_nic}" > /etc/sysconfig/network
• wwsh -y file import /etc/sysconfig/network
• wwsh node new node01 --ipaddr=192.168.1.11 --hwaddr=<YOU_MAC_HERE> -D eth0
• add this file to provision
  • Create this file

    DEVICE=eth0
    BOOTPROTO=static
    IPADDR=%{NETDEVS::ETH0::IPADDR}
    NETMASK=%{NETDEVS::ETH0::NETMASK}
    GATEWAY=%{NETDEVS::ETH0::GATEWAY}
    MTU=%{NETDEVS::ETH0::MTU}
    ONBOOT=yes
    

  • wwsh file import /path/to/that/file/ifcfg-eth0 --path=/etc/sysconfig/network-scripts/ifcfg-eth0
  • wwsh provision set --fileadd=ifcfg-eth0 node01

• wwsh -y provision set node01" --vnfs=centos7 --bootstrap=$(uname -r) \
  --files=dynamic_hosts,passwd,group,shadow,network
  

• systemctl restart dhcpd
• wwsh pxe update