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>
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)
[opc@dbdemo ~]$ sudo yum install iptables-services
Loaded plugins: versionlock
There are no enabled repos.
Run "yum repolist all" to see the repos you have.
To enable custom repositories:
yum-config-manager --enable <repo>
[opc@dbdemo ~]$
The above is the error getting while issue yum command. My OS is Oracle Linux 7.9
Solution to fix the error:
Login to the server as root
# wget https://yum.oracle.com/RPM-GPG-KEY-oracle-ol7 -O /etc/pki/rpm-gpg/RPM-GPG-KEY-oracle
# gpg --quiet --with-fingerprint /etc/pki/rpm-gpg/RPM-GPG-KEY-oracle
# vi /etc/yum.repos.d/ol7-temp.repo
[ol7_latest]
name=Oracle Linux $releasever Latest ($basearch)
baseurl=https://yum.oracle.com/repo/OracleLinux/OL7/latest/$basearch/
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-oracle
gpgcheck=1
enabled=1
# yum install oraclelinux-release-el7
# mv /etc/yum.repos.d/ol7-temp.repo /etc/yum.repos.d/ol7-temp.repo.disabled
# yum update -y
Now yum install iptables-services works without any error
References :
https://yum.oracle.com/faq.html#a10
https://yum.oracle.com/getting-started.html#installing-from-oracle-linux-yum-server
OS is Amazon Linux and trying to install Mysql 5.7, I am getting the below error
The GPG keys listed for the "MySQL 5.7 Community Server" repository are already installed but they are not correct for this package. Check that the correct key URLs are configured for this repository.
Fix :
rpm --import https://repo.mysql.com/RPM-GPG-KEY-mysql-2022
Now run, yum install mysql-community-server
It will work for me.