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one     ping module ansible web -m ping command result ansible web -m ping 192.168.64.135 | SUCCESS => { "ansible_facts": { "discovered_interpreter_python": "/usr/bin/python" }, "changed": false, "ping": "pong" } 192.168.64.140 | SUCCESS => { "ansible_facts": { "discovered_interpreter_pytho ...

Detailed explanation of ansible automatic operation and maintenance tools About the author Author introduction 🍊 Blog home page: Author URI 🍊 Introduction: high quality creators in the field of cloud computing 🏆, The it story of the school's official account Creator 🎓, At school, he participated in many computer related provin ...

Write before I always want to learn K8s, but without environment, K8s is a bit heavy.Before going to school, I rented an ESC from Aliyun, with a single core of 2G and a single machine version of K8s, which can be installed barely. It can't be done with multiple nodes, nor can Demo in the book.Since you need more than one node, because it in ...

Experiment 1 install OpenShift 1.1 preparation [student@workstation ~]$ lab review-install setup 1.2 configuration planning OpenShift cluster has three nodes: master.lab.example.com: the OpenShift master node is a node that cannot be scheduled for pod. node1.lab.example.com : an OpenShift node that can run applications and infrastructure pod s ...

kolla ansibel deploy openstack high availability cluster reference resources: https://docs.openstack.org/kolla-ansible/latest/user/quickstart.html kolla installation node requirements: 2 network interfaces 8GB main memory 40GB disk space For the installation of kolla, the target machine is required ...

An article to play with TiDB disaster recovery 1, Background High availability is another major feature of TiDB. All three components of TiDB/TiKV/PD can tolerate partial instance failure without affecting the availability of the whole cluster. The following describes the availability of these three components, the consequences of a single ...

Detailed explanation of Ansible Roles and practical cases   Host planning   Add user account explain: 1. Login account used by operation and maintenance personnel; 2. All businesses are placed in the "home directory of yun users" under / app / to avoid misplacement of business data; 3. This user is also used by ansible, because alm ...

Ansible Tests Details and Use Cases   Host Planning   Add user account Explain: 1. Login accounts used by operations and maintenance personnel; 2. All businesses are placed under / app / in the "home directory of yun users" to avoid the disorder of business data; 3. This user is also used by ansible because almost all production en ...

ELK schema log processing logic: 1. When Filebeat is installed in the business layer, it will automatically obtain the domain name and environment information of the host running site, add channel and env tags, and take the value of channel as the topic information of kafka 2. Kafka receives the new field and Topic information of Filebeat, and ...

Play Ansible in one step I wrote a column about Ansible. It's very systematic from 0 to 1. It's about 39W words. There are more than 430 pages of pdf, only 39 yuan. Address: https://blog.51cto.com/cloumn/detail/83 Column contents: 1. Learning is not confused: how can Ansible master 2. Entering the Ansible world: usage overview and initial ...