How to Install Glances using Snap on AlmaLinux 9

Glances is a cross-platform curses-based system monitoring tool written in Python. Glances provide information regarding memory, CPU, Disk IO, file system, Uptime, processes, interfaces, alerts & many other system information.

Update System

dnf update

Install EPEL Repo

Install EPEL Repo by running the following command.

dnf install epel-release

Install Snap Package

dnf install snapd

Output:

[root@server ~]# dnf install snapd
Last metadata expiration check: 1:22:19 ago on Wed May 25 15:05:23 2022.
Dependencies resolved.
================================================================================
 Package                  Architecture Version               Repository    Size
================================================================================
Installing:
 snapd                    x86_64       2.55.3-1.el9          epel          15 M
Installing dependencies:
 bash-completion          noarch       1:2.11-4.el9          baseos       291 k
 libpkgconf               x86_64       1.7.3-9.el9           baseos        35 k
 pkgconf                  x86_64       1.7.3-9.el9           baseos        40 k
 pkgconf-m4               noarch       1.7.3-9.el9           baseos        14 k
 pkgconf-pkg-config       x86_64       1.7.3-9.el9           baseos       9.8 k
 snap-confine             x86_64       2.55.3-1.el9          epel         2.5 M
 snapd-selinux            noarch       2.55.3-1.el9          epel         234 k

Transaction Summary

Run the below commands to start and enable the Snap upon boot. 

systemctl start snapd.socket

systemctl enable snapd.socket

To check status

systemctl status snapd.socket

Output:

[root@server ~]# systemctl start snapd.socket
[root@server ~]# systemctl enable snapd.socket
Created symlink /etc/systemd/system/sockets.target.wants/snapd.socket → /usr/lib                         /systemd/system/snapd.socket.
[root@server ~]# systemctl status snapd.socket
● snapd.socket - Socket activation for snappy daemon
     Loaded: loaded (/usr/lib/systemd/system/snapd.socket; enabled; vendor pres>
     Active: active (listening) since Wed 2022-05-25 16:31:32 CEST; 21s ago
      Until: Wed 2022-05-25 16:31:32 CEST; 21s ago
   Triggers: ● snapd.service
     Listen: /run/snapd.socket (Stream)
             /run/snapd-snap.socket (Stream)
      Tasks: 0 (limit: 5912)
     Memory: 0B
        CPU: 490us
     CGroup: /system.slice/snapd.socket

Enable the classic snap support by creating a symbolic link from /var/lib/snapd/snap to /snap with the command below:

ln -s /var/lib/snapd/snap /snap

To check the version of snap run the command:

snap --version

Output:

[root@server ~]# snap version
snap       2.55.3-1.el9
snapd      2.55.3-1.el9
series     16
almalinux  9.0
kernel     5.14.0-70.5.1.el9_0.x86_64

Install Glances via Snap

snap install glances

Firewall Configuration

Glances listen on port 61208 by default and enable ports in the firewall to use glances from the browser.

firewall-cmd --zone=public --add-port=61208/tcp --permanent
firewall-cmd --reload

Once successfully installed, we can use it for real-time Linux monitoring by opening the terminal & running the following command below:

glances
glances -w

Output:

[root@server ~]# glances -w
Glances Web User Interface started on http://0.0.0.0:61208/

Now, open your web browser and access your website using the URL http://your-server-ip-address:61208/.