Closes #19327: Remove CentOS installation instructions (#19328)

docs/installation/1-postgresql.md

@@ -7,32 +7,10 @@ This section entails the installation and configuration of a local PostgreSQL da
 
 ## Installation
 
-=== "Ubuntu"
+```no-highlight
-
+sudo apt update
-    ```no-highlight
+sudo apt install -y postgresql
-    sudo apt update
+```
-    sudo apt install -y postgresql
-    ```
-
-=== "CentOS"
-
-    ```no-highlight
-    sudo yum install -y postgresql-server
-    sudo postgresql-setup --initdb
-    ```
-
-    CentOS configures ident host-based authentication for PostgreSQL by default. Because NetBox will need to authenticate using a username and password, modify `/var/lib/pgsql/data/pg_hba.conf` to support MD5 authentication by changing `ident` to `md5` for the lines below:
-
-    ```no-highlight
-    host    all             all             127.0.0.1/32            md5
-    host    all             all             ::1/128                 md5
-    ```
-
-    Once PostgreSQL has been installed, start the service and enable it to run at boot:
-
-    ```no-highlight
-    sudo systemctl enable --now postgresql
-    ```
 
 Before continuing, verify that you have installed PostgreSQL 14 or later:
 

docs/installation/2-redis.md

@@ -4,18 +4,9 @@
 
 [Redis](https://redis.io/) is an in-memory key-value store which NetBox employs for caching and queuing. This section entails the installation and configuration of a local Redis instance. If you already have a Redis service in place, skip to [the next section](3-netbox.md).
 
-=== "Ubuntu"
+```no-highlight
-
+sudo apt install -y redis-server
-    ```no-highlight
+```
-    sudo apt install -y redis-server
-    ```
-
-=== "CentOS"
-
-    ```no-highlight
-    sudo yum install -y redis
-    sudo systemctl enable --now redis
-    ```
 
 Before continuing, verify that your installed version of Redis is at least v4.0:
 

docs/installation/3-netbox.md

@@ -9,17 +9,11 @@ Begin by installing all system packages required by NetBox and its dependencies.
 !!! warning "Python 3.10 or later required"
     NetBox supports Python 3.10, 3.11, and 3.12.
 
-=== "Ubuntu"
+```no-highlight
-
+sudo apt install -y python3 python3-pip python3-venv python3-dev \
-    ```no-highlight
+build-essential libxml2-dev libxslt1-dev libffi-dev libpq-dev \
-    sudo apt install -y python3 python3-pip python3-venv python3-dev build-essential libxml2-dev libxslt1-dev libffi-dev libpq-dev libssl-dev zlib1g-dev
+libssl-dev zlib1g-dev
-    ```
+```
-
-=== "CentOS"
-
-    ```no-highlight
-    sudo yum install -y gcc libxml2-devel libxslt-devel libffi-devel libpq-devel openssl-devel redhat-rpm-config
-    ```
 
 Before continuing, check that your installed Python version is at least 3.10:
 
@@ -55,17 +49,9 @@ cd /opt/netbox/
 
 If `git` is not already installed, install it:
 
-=== "Ubuntu"
+```no-highlight
-
+sudo apt install -y git
-    ```no-highlight
+```
-    sudo apt install -y git
-    ```
-
-=== "CentOS"
-
-    ```no-highlight
-    sudo yum install -y git
-    ```
 
 Next, clone the git repository:
 
@@ -97,24 +83,12 @@ Using this installation method enables easy upgrades in the future by simply che
 
 Create a system user account named `netbox`. We'll configure the WSGI and HTTP services to run under this account. We'll also assign this user ownership of the media directory. This ensures that NetBox will be able to save uploaded files.
 
-=== "Ubuntu"
+```
-
+sudo adduser --system --group netbox
-    ```
+sudo chown --recursive netbox /opt/netbox/netbox/media/
-    sudo adduser --system --group netbox
+sudo chown --recursive netbox /opt/netbox/netbox/reports/
-    sudo chown --recursive netbox /opt/netbox/netbox/media/
+sudo chown --recursive netbox /opt/netbox/netbox/scripts/
-    sudo chown --recursive netbox /opt/netbox/netbox/reports/
+```
-    sudo chown --recursive netbox /opt/netbox/netbox/scripts/
-    ```
-
-=== "CentOS"
-
-    ```
-    sudo groupadd --system netbox
-    sudo adduser --system -g netbox netbox
-    sudo chown --recursive netbox /opt/netbox/netbox/media/
-    sudo chown --recursive netbox /opt/netbox/netbox/reports/
-    sudo chown --recursive netbox /opt/netbox/netbox/scripts/
-    ```
 
 ## Configuration
 

docs/installation/6-ldap.md

@@ -6,18 +6,10 @@ This guide explains how to implement LDAP authentication using an external serve
 
 ### Install System Packages
 
-On Ubuntu:
-
 ```no-highlight
 sudo apt install -y libldap2-dev libsasl2-dev libssl-dev
 ```
 
-On CentOS:
-
-```no-highlight
-sudo yum install -y openldap-devel python3-devel
-```
-
 ### Install django-auth-ldap
 
 Activate the Python virtual environment and install the `django-auth-ldap` package using pip:

docs/installation/index.md

@@ -3,7 +3,7 @@
 !!! info "NetBox Cloud"
     The instructions below are for installing NetBox as a standalone, self-hosted application. For a Cloud-delivered solution, check out [NetBox Cloud](https://netboxlabs.com/netbox-cloud/) by NetBox Labs.
 
-The installation instructions provided here have been tested to work on Ubuntu 22.04 and CentOS 8.3. The particular commands needed to install dependencies on other distributions may vary significantly. Unfortunately, this is outside the control of the NetBox maintainers. Please consult your distribution's documentation for assistance with any errors.
+The installation instructions provided here have been tested to work on Ubuntu 22.04. The particular commands needed to install dependencies on other distributions may vary significantly. Unfortunately, this is outside the control of the NetBox maintainers. Please consult your distribution's documentation for assistance with any errors.
 
 The following sections detail how to set up a new instance of NetBox: