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Install Python 3.10 from source on Centos 7

yum groupinstall "Development Tools" -y
yum install gcc open-ssl-devel bzip2-devel libffi-devel -y
mkdir downloads
cd downloads
wget https://www.python.org/ftp/python/3.10.4/Python-3.10.4.tgz
https://www.python.org/ftp/python/3.14.0/Python-3.14.0a7.tgz
tar -xzf Python-3.10.4.tgz 
cd Python-3.10.4
./configure --prefix=/usr/local --enable-optimizations
make altinstall
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Create a new git repo

echo "# myclubProj" >> README.md
git init
git add README.md
git commit -m "first commit"
git branch -M main
git remote add origin https://github.com/username/myProj.git
git push -u origin main

…or push an existing repository from the command line

git remote add origin https://github.com/username/myProj.git
git branch -M main
git push -u origin main
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CEPH–zap disk

yum install gdisk
lvscan
lvremove /dev/ceph....
sgdisk --zap-all /dev/sdb

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Reverse proxy with nginx and Prometheus on Centos 7

After installing ngxinx using yum install, create a prometheus config

touch /etc/nginx/conf.d/prometheus.conf
emacs /etc/nginx/conf.d/prometheus.conf

Add the following to prometheus.conf

server {
       listen 80;
       listen [::]:80;
       server_name      prometheus.local;

       location / {
                proxy_pass      http://localhost:9090/;
       }
}

Restart nginx, now you should be able to access http://prometheus.local

Add HTTPS support

The cert was done with mkcert and the files moved to a directory in /etc/nginx/mkcerts. Change the port to 9090 to load the prometheus site, port 3000 points to grafana.

server {
       listen 80;
       listen 443 ssl;

       ssl_certificate /etc/nginx/mkcerts/prometheus2.local.pem;
       ssl_certificate_key /etc/nginx/mkcerts/prometheus2.local-key.pem;

       server_name      prometheus2.local;
       location / {
                proxy_pass      http://localhost:3000/;
       }

}

Add Basic Authentication to prometheus

First install

yum install httpd-tools

Now create the password

htpasswd -c /etc/nginx/.htpasswd username

Now modify /etc/nginx/conf.d/prometheus.conf

server {
       listen 80;
       listen 443 ssl;

       ssl_certificate /etc/nginx/mkcerts/prometheus2.local.pem;
       ssl_certificate_key /etc/nginx/mkcerts/prometheus2.local-key.pem;

       auth_basic  "Protected Area";
       auth_basic_user_file /etc/nginx/.htpasswd;

       server_name      prometheus2.local;
       location / {
                proxy_pass      http://localhost:9090/;
       }

}

Restart prometheus