Monday, September 19, 2022

GIT operations in day to day life

 GIT operations

To configure your name and email in your local settings:


# git config --global user.name "Name"

# git config --global user.email "Email"

git config -l


To Clone the git repo:


git clone https://git-url/project.git


To play around the branches :


git branch

git branch -r

git switch <branch-name> 


To push from local repo to git repo:


# git add .

git commit -m "First commit"

git push -u origin <branch-name> 

Wednesday, September 14, 2022

How to upgrade Prometheus from 2.22 to 2.38 on Ubuntu

 How to upgrade Prometheus from 2.22 to 2.38 on Ubuntu

OS : Ubuntu 16.04 LTS

Prometheus version : 2.22

# /usr/local/bin/prometheus --version

prometheus, version 2.22.0 (branch: HEAD, revision: 0a7fdd3b76960808c3a91d92267c3d815c1bc354)


Confirm that prometheus datas are in # ll /var/lib/prometheus

Take a backup of this data to a safe location


Confirm the path of prometheus and promtool # /usr/local/bin/

Take a backup of this data to a safe location


Stop prometheus and grafana services


# systemctl stop prometheus

# systemctl stop grafana-server


Download the latest prometheus. In my case its 2.38 and I downloaded to /mnt folder.


# cd /mnt

wget https://github.com/prometheus/prometheus/releases/download/v2.38.0/prometheus-2.38.0.linux-amd64.tar.gz

# tar -xvf prometheus-2.38.0.linux-amd64.tar.gz

# cd prometheus-2.38.0.linux-amd64

# cp prometheus /usr/local/bin/

# cp promtool /usr/local/bin/

# chown prometheus:prometheus /usr/local/bin/prometheus

# chown prometheus:prometheus /usr/local/bin/promtool

# cp -r consoles /etc/prometheus/

# cp -r console_libraries /etc/prometheus/

# chown -R prometheus:prometheus /etc/prometheus


Start prometheus and grafana services


# systemctl start prometheus

# systemctl start grafana-server


Check the prometheus version

# /usr/local/bin/prometheus --version

prometheus, version 2.38.0 (branch: HEAD, revision: 818d6e60888b2a3ea363aee8a9828c7bafd73699)