Programmer Group

Ansible can use the command line to manage automatically. Command management tools are supported by a series of modules and parameters. The basic grammar is as follows: ansible  <host-pattern>  [ –m  module_name ]  [ –a  args] <host-pattern> : Which hosts are valid [ –m  module_name ]  :Specify the module to be used [-a args ]  :M ...

Batch distribution and execution of script keys Label (Space Separation): Linux Service Architecture - Chen Siqi This teaching note is a summary of my study and work career, which is the first draft (there are many imperfections), the original work, allowed to be reproduced, when reproduced, please be sure to indicate the original source of the ...

Environment: vmware virtualizationRequirements: Business departments need dozens or even hundreds of virtual machines at a time In the past, no matter this area, temporary needs have to be met due to the reduction of personnel. Use ansible vmware_guest to create virtual machines, avoiding manual one-by-one creation of pure manual workDon't tal ...

Deploying docker-based CEPH cluster using ceph-ansible Install ansible Download ceph-ansible Configure ceph-ansible Start deployment Destroying Clusters (Caution) Install ansible For installing ansible and configuring secret-free login between nodes, this is not covered here. Please refer to Official Documents. Downlo ...

Overview of Automation Operation and Maintenance: Nowadays, with the rapid development of the Internet, the efficiency of traditional operation and maintenance methods is too low. Deployment of automated operation and maintenance can safely and efficiently complete the maintenance work, which has become the main mode of operation and maintena ...

Introduction to YAML: * YAML is a format used to express data sequences. YAML is the abbreviation of YAML Ain't Markup Lanaguage, that is, YAML is not XML. * characteristics: 1. It has good continuity and is easy to implement. 2. Strong expressive ability and good expansibility; 3. Good interaction with scripting language; 4. H ...

roles in ansible Roles can automatically load variable files, tasks and handlers according to hierarchical structure. Simply put, roles include variables, files, tasks, modules and processors in separate directories, and can be easily included. roles are generally used in host-based service building scenarios, but can also be used to build dae ...

Introduction to Jinja2 Jinja2 is a python-based template engine with functions similar to smarty in PHP, Freemarker and velocity in J2ee. It can fully support unicode, and has an integrated sandbox execution environment, which is widely used. Jinja2 uses BSD authorization The syntax of Jinja2 is composed of variables and stat ...