Programmer Group

1. Environmental information:Three CentOS 7.6 virtual machines are built by using VMware Workstation in this environmentNode architecture: 1 controller node, 1 compute node, 1 cinder block storage node.The hardware configuration information is as follows: Node name ----------- CPU ----- memory ----- operating system ----- disk controller node ...

Article Directory Preface First: The theoretical basis of CEPH 1.1: Overview 1.2: Related concepts 1.3: No central architecture at all 2: Deploy CEPH cluster 2.1: Deploying a CEPH environment 2.2: CEPH cluster building 2.3: CEPH Cluster Management Page Installation 3: docking between CEPH and ope ...

1. Create keystone database and authorize [root@controller ~]# mysql -uroot CREATE DATABASE keystone; GRANT ALL PRIVILEGES ON keystone.* TO 'keystone'@'localhost' IDENTIFIED BY 'KEYSTONE_DBPASS'; GRANT ALL PRIVILEGES ON keystone.* TO 'keystone'@'%' IDENTIFIED BY 'KEYSTONE_DBPASS'; 2. Install ke ...

1: rbd introduction A block is a sequence of bytes (for example, a 512 byte block of data). Block based storage interface is the most commonly used method to store data using rotating media (such as hard disk, CD, floppy disk or even traditional 9-track tape). The ubiquitous block device interface makes the virtual block device an ideal candi ...

Operation and maintenance development is based on the blue whale of Iaas, using python as the development language, combining angularJS+django framework, mysql as the database. Step 1: get the framework template (system get from Blue whale smart cloud Enterprise Edition -->Developer Center > template acquisition) Step 2 ...

       1. View openstack version nova-manage version 2. View nodes nova host-list 3. View calculation nodes nova hypervisor-list 4. View the virtual machines on the computing node nova hypervisor-servers compute1 5. View the list of virtual machines nova list 6. View the image list nova image-list 7. View volume list nova volume-list 8. View ...

Wrong information ClientException: Unknown Error (HTTP 503) (Request-ID: req-c9ec29c6-cca5-4edc-9828-cd6494d2d36b) ERROR (ClientException): Unknown Error (HTTP 503) (Request-ID: req-c9ec29c6-cca5-4edc-9828-cd6494d2d36b) Use debug to view the error message: nova --debug list DEBUG (extension:157) found extension EntryPoint.parse('v2token = keys ...

This blog will introduce the UI operation of the stack in openstack First, put the required files on the http service [root@controller xiandian]# pwd /etc/xiandian [root@controller xiandian]# ls lb-server.yaml nginx_flat.yaml nginx.yaml openrc.sh [root@controller xiandian]# cp nginx* /var/www/html/ [root@controller xiandian]# ...

Author: hula mesh team, keen on kubernetes, devops, apollo, istio, linker, openstack, calico and other technologies. Linker2 introduction Linkerd consists of control plane and data plane: The control plane is a set of services running in the Kubernetes namespace (linker default). These services can complete the aggregation of telemetry data ...

Summary: In this section, we discuss the openstack cinder volume rbd-driven backup/restore operation. Backup is a backup of volume s elsewhere (backup devices) that can be restore d in the future. Backup VS Snapshot Both Backup and snapshot can save the current state of the volume for later recover ...