RHEL

tags:

administration
installation
vm
RHEL
CentOS

This is a step-by-step guide for installation and uninstallation of Gluu Flex on Red Hat Enterprise Linux.

#Prerequisites

Ensure that the OS platform is one of the supported versions
VM should meet VM system requirements
Make sure that if SELinux is installed then it is put into permissive mode
If the server firewall is running, make sure you allow https, which is needed for OpenID and FIDO.

sudo firewall-cmd --permanent --zone=public --add-service=https

sudo firewall-cmd --reload;

Install EPEL and mod-auth-openidc as dependencies

sudo yum -y install https://dl.fedoraproject.org/pub/epel/epel-release-latest-$(rpm -E %rhel).noarch.rpm

 sudo yum -y install mod_auth_openidc;

Please obtain an SSA to trial Flex, after which you are issued a JWT that you can use during installation. SSA should be stored in a text file on an accessible path.

#Install the Package

#Download and Verify the Release Package

Download the release package from the Github Flex Releases

wget https://github.com/GluuFederation/flex/releases/download/v6.4.0/flex-6.4.0-stable.el9.x86_64.rpm -P /tmp

Go to /tmp directory:
```
cd /tmp
```

Verify the cryptographic signature using cosign (primary verification):

Download the cosign bundle from the Releases page:

wget https://github.com/GluuFederation/flex/releases/download/v6.4.0/flex-el9-6.4.0-stable.bundle -P /tmp

Verify the signature:

cosign verify-blob \
  --bundle flex-el9-6.4.0-stable.bundle \
  --certificate-identity-regexp "https://github.com/GluuFederation/flex" \
  --certificate-oidc-issuer https://token.actions.githubusercontent.com \
  flex-6.4.0-stable.el9.x86_64.rpm

Output similar to below confirms the package was signed by the Janssen CI pipeline:

Verified OK

Optionally, verify integrity using the published checksum file (secondary check):

   echo 'paste-release-sha256sum flex-6.4.0-stable.el9.x86_64.rpm' | sed 's/^sha256://' >flex-6.4.0-stable.el9.x86_64.rpm.sha256sum && sha256sum -c flex-6.4.0-stable.el9.x86_64.rpm.sha256sum

Output similar to below should confirm the integrity of the downloaded package.

flex-6.4.0-stable.el9.x86_64.rpm: OK

#Install the Release Package

sudo yum install ./flex-6.4.0-stable.el9.x86_64.rpm

#Run the setup script

Execute the setup script with command below:

sudo python3 /opt/jans/jans-setup/flex/flex-linux-setup/flex_setup.py

Install Admin UI [Y/n]: y

#Verify and Access the Installation

Verify that installation has been successful and all installed components are accessible using the steps below

/opt/jans/jans-cli/jans_cli_tui.py

Full TUI documentation can be found here

Log into Admin-UI using URI below

https://FQDN/admin

After successful installation of the Admin-UI component, we need to upload the required SSA input as a file path. This should be the SSA or file that was acquired as part of prerequisite step.

When troubleshooting issues with Admin UI access, it's advisable to check the logs, refer to the FAQ, and review service dependencies for potential solutions.

Access Casa using URI below

https://FQDN/jans-casa

#Enabling HTTPS

To enable communication with Janssen Server over TLS (https) in a production environment, Janssen Server needs details about CA certificate. Update the HTTPS cofiguration file https_jans.conf as shown below:

Open https_jans.conf

sudo vi /etc/httpd/conf.d/https_jans.conf

Update SSLCertificateFile and SSLCertificateKeyFile parameters values

SSLCertificateFile location_of_fullchain.pem
SSLCertificateKeyFile location_of_privkey.pem

Restart httpd service for changes to take effect
```
sudo service httpd restart
```

#Uninstallation

Removing Flex is a two step process:

Uninstall Gluu Flex
Uninstall Janssen Packages

If you have not run the setup script, you can skip step 1 and just remove the package.

#Uninstall Gluu Flex

Use the command below to uninstall the Gluu Flex server

sudo python3 /opt/jans/jans-setup/flex/flex-linux-setup/flex_setup.py --remove-flex

Output:

[ec2-user@manojs1978-lenient-drum ~]$ sudo python3 /opt/jans/jans-setup/flex/flex-linux-setup/flex_setup.py --remove-flex

This process is irreversible.
Gluu Flex Components will be removed

 
Are you sure to uninstall Gluu Flex? [yes/N] yes

Profile was detected as jans.

Log Files:

/opt/jans/jans-setup/logs/flex-setup.log
/opt/jans/jans-setup/logs/flex-setup-error.log

/opt/jans/jans-setup/setup_app/pylib/jwt/utils.py:7: CryptographyDeprecationWarning: Python 3.6 is no longer supported by the Python core team. Therefore, support for it is deprecated in cryptography and will be removed in a future release.
  from cryptography.hazmat.primitives.asymmetric.ec import EllipticCurve
Please wait while collecting properties...
Uninstalling Gluu Casa
  - Deleting /etc/default/casa
  - Deleting /etc/systemd/system/casa.service
  - Removing casa directives from apache configuration
  - Deleting /opt/jans/jetty/jans-auth/custom/libs/casa-config.jar
  - Removing plugin /opt/jans/jetty/jans-auth/custom/libs/casa-config.jar from Jans Auth Configuration
  - Deleting /opt/jans/python/libs/Casa.py
  - Deleting /opt/jans/python/libs/casa-external_fido2.py
  - Deleting /opt/jans/python/libs/casa-external_otp.py
  - Deleting /opt/jans/python/libs/casa-external_super_gluu.py
  - Deleting /opt/jans/python/libs/casa-external_twilio_sms.py
  - Deleting casa client from db backend
  - Deleting casa client scopes from db backend
  - Deleting casa configuration from db backend
  - Deleting script 3000-F75A from db backend
  - Deleting /opt/jans/jetty/casa
Uninstalling Gluu Admin-UI
  - Deleting Gluu Flex Admin UI Client  2001.931e814d-01e2-4983-898f-91bf93670f7b
  - Removing Admin UI directives from apache configuration
  - Deleting /opt/jans/jetty/jans-config-api/custom/libs/gluu-flex-admin-ui-plugin.jar
  - Removing plugin /opt/jans/jetty/jans-config-api/custom/libs/gluu-flex-admin-ui-plugin.jar from Jans Config API Configuration
  - Deleting /opt/jans/jetty/jans-config-api/custom/config/log4j2-adminui.xml
  - Deleting /opt/jans/jetty/jans-config-api/custom/config/log4j2.xml
  - Rewriting Jans CLI init file for plugins
  - Deleting /var/www/html/admin
Disabling script A51E-76DA
Restarting Apache
Restarting Jans Auth
Restarting Janssen Config Api

#Uninstall Janssen Packages

The command below removes and uninstall the jans package

sudo python3 /opt/jans/jans-setup/install.py -uninstall

Output:

[ec2-user@manojs1978-lenient-drum ~]$ sudo python3 /opt/jans/jans-setup/install.py -uninstall

This process is irreversible.
You will lose all data related to Janssen Server.

 
Are you sure to uninstall Janssen Server? [yes/N] yes

Uninstalling Jannsen Server...
Removing /etc/default/jans-config-api
Stopping jans-config-api
Removing /etc/default/jans-auth
Stopping jans-auth
Removing /etc/default/jans-fido2
Stopping jans-fido2
Removing /etc/default/jans-scim
Stopping jans-scim
Removing /etc/default/jans-cache-refresh
Stopping jans-cache-refresh
Executing rm -r -f /etc/certs
Executing rm -r -f /etc/jans
Executing rm -r -f /opt/jans
Executing rm -r -f /opt/amazon-corretto*
Executing rm -r -f /opt/jre
Executing rm -r -f /opt/node*
Executing rm -r -f /opt/jetty*
Executing rm -r -f /opt/jython*
Executing rm -r -f /opt/dist
Removing /etc/httpd/conf.d/https_jans.conf

#Remove Gluu Flex Packages:

List existing Gluu packages with:

sudo yum list installed | grep flex

Remove packages:

sudo yum remove <package-name>

#Uninstalling Admin UI

To uninstall the Admin UI from your Flex installation, execute this command:

sudo python3 /opt/jans/jans-setup/flex/flex-linux-setup/flex_setup.py --remove-flex

#Updating Admin UI

To update the Admin UI in an existing Flex installation, execute this command:

sudo python3 /opt/jans/jans-setup/flex/flex-linux-setup/flex_setup.py --update-admin-ui