Docker in Redhat Enterprise Linux 8.10

[root@192 ~]# dnf -y install podman
Updating Subscription Management repositories.
Last metadata expiration check: 0:11:44 ago on Sun 21 Jun 2026 09:44:38 AM EDT.
Package podman-4:4.9.4-30.module+el8.10.0+24081+a04d358a.x86_64 is already installed.
Dependencies resolved.
Nothing to do.
Complete!

 [root@192 ~]# dnf search podman
Updating Subscription Management repositories.
Last metadata expiration check: 0:08:56 ago on Sun 21 Jun 2026 09:44:38 AM EDT.
================================================ Name Exactly Matched: podman 

podman.x86_64 : Manage Pods, Containers and Container Images
=============================================== Name & Summary Matched: podman cockpit-podman.noarch : Cockpit component for Podman containers
pcp-pmda-podman.x86_64 : Performance Co-Pilot (PCP) metrics for podman containers
podman-docker.noarch : Emulate Docker CLI using podman
podman-manpages.noarch : Man pages for the podman commands
podman-plugins.x86_64 : Plugins for podman
podman-remote.x86_64 : A remote CLI for Podman: A Simple management tool for pods, containers and images
podman-tests.x86_64 : Tests for podman
python-podman-api.noarch : Podman API
python3-podman.noarch : RESTful API for Podman
==================================================== Name Matched: podman 
podman-catatonit.x86_64 : A signal-forwarding process manager for containers
podman-gvproxy.x86_64 : Go replacement for libslirp and VPNKit
====================================== Summary Matched: podman
toolbox.x86_64 : Script to launch privileged container with podman
toolbox.noarch : Script to launch privileged container with podman
[root@192 ~]# podman --version                      --> To Check podman version
podman version 4.9.4-rhel

[root@192 ~]# podman ps -a       --->To Check image running or not or, to check running or existed container
CONTAINER ID  IMAGE       COMMAND     CREATED     STATUS      PORTS       NAMES

or, 
[root@192 ~]# podman ps      --> To check running container
CONTAINER ID  IMAGE       COMMAND     CREATED     STATUS      PORTS       NAMES

[root@192 ~]# podman image list  / ls                    -->To check image
REPOSITORY  TAG         IMAGE ID    CREATED     SIZE

[root@192 ~]# podman network ls                    -->To Check/show network list
NETWORK ID    NAME        DRIVER
2f259bab93aa  podman      bridge
[root@192 ~]# podman volume ls                ---> To check/show volumes list

Go to the site,

https://hub.docker.com/    --> Create Account  -->Check Visibility (public/private)

 

In search bar, type nginx

[root@192 ~]# systemctl status nginx     --> To check nginx status
Unit nginx.service could not be found.

if nginx is running

[root@192 ~]# systemctl disable nginx
[root@192 ~]# systemctl stop nginx

To pull image

[root@192 ~]# podman pull nginx

--> podman pull <imagename> eg podman pull mysql      podman pull mariadb

  

Select docker.io/library/nginx:latest 

 

[root@192 ~]# podman image ls                     -->list of image  
REPOSITORY               TAG         IMAGE ID      CREATED     SIZE
docker.io/library/nginx  latest      eaf6f386053e  3 days ago  165 MB

To Run in container

[root@192 ~]# podman run --name test nginx
  

In another terminal, 

 

[root@192 ~]# curl 127.0.0.1
curl: (7) Failed to connect to 127.0.0.1 port 80: Connection refused
 

Need to map port

[root@192 ~]# podman run --name test11 -p 8080:80 nginx 

in another shell, [root@192 ~]# podman ps

In browser
 

 

 

 

 

 

GIT

GIT

GIT Runner

 

Gitlab.comàProjectàLab01àSettingàCI/CD

 

 CI/CD-->Runner à Create Project Manager

Create project runner

 

Tag -- Staging

Runner Description--Running Staging environment 

Click create runner 

  

Platform: Linux

 

[root@localhost ~]# [root@localhost ~]# gitlab-runner register  --url https://gitlab.com  --token glrt-QF42iv26n-J6NGzx1xg1OWM6MQpvOjEKcDoxZGV1ZXoKdDozCnU6bjQ4NGIc.01.1o0ok5mrp
-bash: [root@localhost: command not found

problem: gitlab command is not inserted

Solution:

click on How do I install GitLab Runner?

 

In Server

[root@localhost ~]# sudo chmod +x /usr/local/bin/gitlab-runner
[root@localhost ~]# sudo useradd --comment 'GitLab Runner' --create-home gitlab-runner --shell /bin/bash
[root@localhost ~]# # Install and run as a service
[root@localhost ~]# sudo gitlab-runner install --user=gitlab-runner --working-directory=/home/gitlab-runner

[root@localhost ~]# sudo gitlab-runner start
sudo: gitlab-runner: command not found

Problem:
[root@localhost ~]#  gitlab-runner start
Segmentation fault
[root@localhost ~]# gitlab-runner register  --url https://gitlab.com  --token glrt-QF42iv26n-J6NGzx1xg1OWM6MQpvOjEKcDoxZGV1ZXoKdDozCnU6bjQ4NGIc.01.1o0ok5mrp
Segmentation fault

Solution:

# Remove existing  

rm -f /usr/local/bin/gitlab-runner

# Re-download (replace amd64 with arm64/arm if needed) 

 curl -L --output /usr/local/bin/gitlab-runner \ "https://gitlab-runner-downloads.s3.amazonaws.com/latest/binaries/gitlab-runner-linux-amd64" 

[root@localhost ~]# chmod +x /usr/local/bin/gitlab-runner
[root@localhost ~]# gitlab-runner --version
Version:      19.0.1
Git revision: c2831b75
Git branch:   19-0-stable
GO version:   go1.26.3
Built:        2026-05-29T16:20:59Z
OS/Arch:      linux/amd64
 

Another Solution

[root@localhost ~]# sudo gitlab-runner install --user=gitlab-runner --working-directory=/home/gitlab-runner
sudo: gitlab-runner: command not found
[root@localhost ~]# sudo gitlab-runner start
sudo: gitlab-runner: command not found
[root@localhost ~]# gitlab-runner register  --url https://gitlab.com  --token glrt-td8PAysWFg0BO0zlqpuhW2M6MQpvOjEKcDoxZGV1ZXoKdDozCnU6bjQ4NGIc.01.1o021wx9q
Runtime platform                                    arch=amd64 os=linux pid=29544 revision=c2831b75 version=19.0.1
Running in system-mode.

Enter the GitLab instance URL (for example, https://gitlab.com/):
[https://gitlab.com]:                       <enter only>

Verifying runner... is valid                        correlation_id=a0cb1d59cfd87674-KTM runner=6lD4JwZjY runner_name=localhost.localdomain
Enter a name for the runner. This is stored only in the local config.toml file:
[localhost.localdomain]: staging                         <name of the runner>
Enter an executor: ssh, parallels, virtualbox, shell, docker, docker-windows, docker-autoscaler, docker+machine, custom, instance, kubernetes:
SHELL
ERROR: Invalid executor specified
Enter an executor: ssh, parallels, virtualbox, shell, docker, docker-windows, docker-autoscaler, docker+machine, custom, instance, kubernetes:
[SHELL]: shell     <IN SMALL Letter>
Runner registered successfully. Feel free to start it, but if it's running already the config should be automatically reloaded!
Configuration (with the authentication token) was saved in "/etc/gitlab-runner/config.toml"
 

 [root@localhost ~]# gitlab-runner run

Runtime platform                                    arch=amd64 os=linux pid=12523 revision=c2831b75 version=19.0.1

Starting multi-runner from /etc/gitlab-runner/config.toml...  builds=0 max_builds=0

Running in system-mode.

Usage logger disabled                               builds=0 max_builds=1

Configuration loaded                                builds=0 max_builds=1

WARNING: CONFIGURATION: Long polling issues detected.

Issues found:

  - Request bottleneck: 1 runners have request_concurrency=1, causing job delays during long polling

This can cause job delays matching your GitLab instance's long polling timeout.

Recommended solutions:

  1. Increase 'request_concurrency' to 2-4 for 1 runners currently using request_concurrency=1

Note: The 'FF_USE_ADAPTIVE_REQUEST_CONCURRENCY' feature flag can help automatically adjust request_concurrency based on workload.

This message will be printed each time the configuration is reloaded if the issues persist.

See documentation: https://docs.gitlab.com/runner/configuration/advanced-configuration.html#long-polling-issues  builds=0 max_builds=1

listen_address not defined, metrics & debug endpoints disabled  builds=0 max_builds=1

[session_server].listen_address not defined, session endpoints disabled  builds=0 max_builds=1

Initializing executor providers                     builds=0 max_builds=1

WARNING: Checking for jobs... failed                correlation_id=f71ea12f8336464385dc947cef66e79b runner=74H2SChOP runner_name=gitlab-runner register  --url https://gitlab.com  --token glrt-74H2SChOPxVUWl49xORjfWM6MQpvOjEKcDoxZGxtZGoKdDozCnU6bjQ4NGIc.01.1o0us0d7e status=execute JSON request: execute request: couldn't execute POST against https://gitlab.com/api/v4/jobs/request: Post "https://gitlab.com/api/v4/jobs/request": read tcp 192.168.184.131:37030->172.65.251.78:443: read: connection reset by peer

WARNING: [runWait] received stop signal             builds=0 max_builds=1 stop-signal=interrupt

WARNING: Graceful shutdown not finished properly. To gracefully clean up running plugins please use SIGQUIT (ctrl-\) instead of SIGINT (ctrl-c)  builds=0 error=received stop signal: interrupt max_builds=1

WARNING: Starting forceful shutdown                 StopSignal=interrupt builds=0 max_builds=1 shutdown-timeout=30s

WARNING: Checking for jobs... failed                correlation_id=c690d90e9e7741c59a088c10e19113db runner=74H2SChOP runner_name=gitlab-runner register  --url https://gitlab.com  --token glrt-74H2SChOPxVUWl49xORjfWM6MQpvOjEKcDoxZGxtZGoKdDozCnU6bjQ4NGIc.01.1o0us0d7e status=execute JSON request: execute request: couldn't execute POST against https://gitlab.com/api/v4/jobs/request: Post "https://gitlab.com/api/v4/jobs/request": context canceled

All workers stopped.                                builds=0 max_builds=1

Shutting down executor providers                    builds=0 max_builds=1 shutdown-timeout=30s

Shutting down docker+machine executor provider      executor=docker+machine

No shutdown drain config, skipping machine pool drain  executor=docker+machine

All executor providers shut down.                   builds=0 max_builds=1

Can exit now!                                       builds=0 max_builds=1

Laravel Installation

 https://laravel.com/docs/13.x     For Larave Documentation

Before creating  first Laravel application, make sure that local machine has PHP, Composer, and the Laravel installer installed. In addition, we should install either Node and NPM or Bun so that we can compile our application's frontend assets.

PHP

Download and Install PHP 

 

To check version of PHP

 

For environmental , right click on my computer-->show more options-->properties-->Advanced System Settings-->Click on Environmental Variables-->Insert PHP in PATH.(PHP)

 

 

Looks like this .........added to the PATH 

 

 Install Composer

 

In PowerShell, as administrator         

PS C:\windows\system32> notepad C:\Program Files\php\current\php.ini

( Note remove ; from below command) 

extension=curl

extension=fileinfo

extension=gd

extension=intl

extension=mbstring

extension=mysqli

extension=openssl

extension=pdo_mysql

extension=zip

 

In Browser, gitlab.comà Choose any one repo , for example https://gitlab.com/poudelsantoshsharma/prac1

 

Clone with SSH...copy URL paste it at vscode 

 

 

 Then Clone the URL

 

$ composer create-project laravel/laravel app

 

$ cd app

 

In server, create database

[root@localhost ~]#  dnf -y install mysql-server

[root@localhost ~]# systemctl start mysqld

[root@localhost ~]# systemctl status mysqld

[root@localhost ~]# mysql -u root -p
Enter password:
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 34
Server version: 8.0.45 Source distribution

Copyright (c) 2000, 2026, Oracle and/or its affiliates.

Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

mysql>

mysql>create database laravel_app;

mysql> show databases;
+--------------------+
| Database           |
+--------------------+
| information_schema |
| laravel_app        |
| mysql              |
| performance_schema |
| sys                |
+--------------------+
5 rows in set (0.00 sec)
mysql> create user luser@'%' identified by 'P@ssw0rd';
Query OK, 0 rows affected (0.01 sec)

mysql> grant all privileges on laravel_app.* to luser@'%';
Query OK, 0 rows affected (0.01 sec)

mysql> flush privileges;
flush privileges;

mysql> exit
Bye

[root@localhost ~]# firewall-cmd --permanent --add-port=3306/tcp

[root@localhost ~]# firewall-cmd --reload
success
[root@localhost ~]# firewall-cmd --list-all
public (active)
  target: default
  icmp-block-inversion: no
  interfaces: ens160
  sources:
  services: cockpit dhcpv6-client https ssh
  ports: 80/tcp 443/tcp 3306/tcp

then in .env

DB_CONNECTION=mysql

DB_HOST=127.0.0.1 # ur own IP

DB_PORT=3306

DB_DATABASE=laravel_app

DB_USERNAME=luser

DB_PASSWORD=P@ssw0rd