OpenShift 3.6 Basic Guest Template: Difference between revisions
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===NetworkManager=== | |||
OpenShift requires [[NetworkManager]] to be operational on all nodes (see https://docs.openshift.com/container-platform/3.5/install_config/install/prerequisites.html#prereq-networkmanager). Verify it works: | |||
nmcli g | |||
Revision as of 00:22, 8 November 2017
Internal
Overview
This is the simplest possible guest template, which will be used as a base for various other types of guests or more complex templates.
Procedure
KVM Virtual Machine Template Creation
Make sure the required storage pools have been configured as described in the Virtualization Host Preparation page.
The template creation procedure is described in detail in the virt-install page. Drive the installation from the procedure described there, as it contains critical details.
The actual command is:
virt-install --name ocp36.basic-template --memory 1024 --vcpus 2 --os-variant=rhel7.4 --location /iso-images/rhel-server-7.4-x86_64-dvd.iso --extra-args="console=tty0 console=ttyS0,115200n8" --disk=/iso-images/rhel-server-7.4-x86_64-dvd.iso,device=cdrom --disk=/main-storage-pool/ocp36.basic-template.qcow2,size=7 --network default --graphics none
The command will enter in text interactive mode.
VMware Fusion Virtual Machine
VirtualBox Virtual Machine
First-Boot Configuration
- English/American
- Network
- Host name: basic-template.ocp36.local
- eth0: 192.168.122.21/255.255.255.0/192.168.1.1, IPV6 ignore, nameservers: 8.8.8.8, connect automatically after reboot, apply configuration in installer.
- Timezone 3 82, NTP server 129.6.15.28
- Software selection: minimal install
- Installation destination: vda, use all space, Standard partition.
- Disable kdump
- root password
More details about RHEL Minimal installation:
Post-Boot Configuration and Validation
IP Address
ip addr
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
link/ether 52:54:00:03:c4:35 brd ff:ff:ff:ff:ff:ff
inet 192.168.122.21/24 brd 192.168.122.255 scope global eth0
valid_lft forever preferred_lft forever
...
NetworkManager
OpenShift requires NetworkManager to be operational on all nodes (see https://docs.openshift.com/container-platform/3.5/install_config/install/prerequisites.html#prereq-networkmanager). Verify it works:
nmcli g