Management Virtual Machine of OpenStack (7)

The three components (four nodes) of OpenStack have been safely built. This blog article brings you basic management and makes platform management more convenient and effective.

I. Mirror Management

1. Mount / upload the mirror to the control node

Mkdir / abc

Mount.cifs / / 192.168.37.1/rhel7/KVM/CentOS-7-x86_64-DVD-1708.iso / abc

2. Convert native ISO image format to qcow2

Openstack image create-disk-format qcow2-container-format bare-public-file / abc/rhel7/KVM/CentOS-7-x86_64-DVD-1708.iso CentOS-7-x86_64

3. View the image information created.

Openstack image list

Second, create a virtual machine process

1. Create a network provider

Source ~ / admin-openrcopenstack network create-- share-- external-- provider-physical-network provider--provider-network-type flat provider parameter:-- share allows all projects to use virtual networks-- external defines external virtual networks if you need to create an external network, use-- internal--provider-physical-network provider & &-- provider-network-type flat to connect to the flat virtual network.

2. Create a subnet

Openstack subnet create-- network provider-- allocation-pool start=192.168.37.50,end=192.168.37.100-- dns-nameserver 114.114.114.114-- gateway 192.168.37.254-- subnet-range 192.168.37.0 subnet-range 24 provider

3. Create a CVM specification flavor

Openstack flavor create-- id 1-- vcpus 4-- ram 128-- disk 1 m2.nano

4. The control node generates a secret key pair. Before starting the instance, you need to add the public key to the Compute service.

Source ~ / demo-openrc

Ssh-keygen-Q-N ""

Openstack keypair create-public-key ~ / .ssh/id_rsa.pub zhangkey

5. Add security groups to allow ICMP (ping) and security shell (SSH)

Openstack security group rule create-proto icmp default

6. Allow secure shell (SSH) access

Openstack security group rule create-proto tcp-dst-port 22 default

7. List flavor

Openstack flavor list

8. List available images

Openstack image list

9. List the network

Openstack network list

10. List security groups

Openstack security group list

Create a virtual machine

Openstack server create-flavor m2.nano-image cirros-nic net-id=c636f502-f93f-4e48-8e1e-53402ea3ba4e-security-group default-key-name chenkey provider-instance

12. View the status of the real column

Openstack server list

13. Test: view the instance