Install OpenResty on CentOS and install OpenStack on CentOS

php editor Baicao brings you detailed tutorials on installing OpenResty on CentOS and installing OpenStack on CentOS. CentOS is a popular Linux distribution, while OpenResty and OpenStack are commonly used tools in server-side application development. Through this tutorial, you will learn how to install and configure OpenResty and OpenStack on CentOS to provide stable and efficient support for your server-side application development. Whether you are a beginner or an experienced developer, this tutorial will provide you with simple and clear steps and guidance to help you quickly get started and successfully install these two tools.

Before installing any software, first ensure that the system is up to date, open the terminal and enter the following command:

```

sudo yum update

This will update the system and install the latest packages.

To install OpenResty, you need to add the official repository of OpenResty first and execute the following command in the terminal:

sudo yum install yum-utils

sudo yum-config-manager - -add-repo

After adding the warehouse, you can use the following command to install OpenResty:

sudo yum install openresty

After the installation is complete, you can use the following command to verify whether the installation is successful Success:

openresty -v

If the installation is successful, the version information of OpenResty will be displayed.

Similarly, before installing OpenStack, make sure the system is up to date. Open the terminal and enter the following command:

To install OpenStack, you need to add the official OpenStack repository first and execute it in the terminal. The following command:

sudo yum install centos-release-openstack-train

After adding the warehouse, you can use the following command to install OpenStack:

sudo yum install openstack-packstack

The installation process may take some time, depending on the system configuration and network speed.

After the installation is complete, you can use the following command to configure OpenStack:

sudo packstack --allinone

This command will automatically configure OpenStack and install all components in on a host.

In Linux, there is a very useful command called "grep", which is used to search for a specified pattern in a file. To find all lines containing the keyword "hello", you can use the following command:

grep "hello" file.txt

This will output all lines in the file "file.txt" that contain the keyword "hello". The grep command also supports regular expressions and other advanced search functions. , ideal for tasks such as log analysis and text processing.

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