Installing Integreatly

Table of Contents

• Overview
  • Prerequisites
  • Installation Steps
  • 1. Clone installation GIT repository locally
  • 2. Create the inventory hosts file
  • 3. Check the connection with the OpenShift cluster
  • 4. Log into OpenShift
  • 5. Install all products from a single playbook
    • 5.1. Create GitHub OAuth to enable GitHub authorization for Launcher
    • 5.2. Run the playbook
    • 5.3. Add the generated Authorization callback URL to GitHub OAuth
  • 6. Install each product individually
    • 6.1. Run Single Sign On install playbook
    • 6.2. Run EnMasse install playbook
    • 6.3. Run Che install playbook
    • 6.4. Run Launcher install playbook
    • 6.5. Run 3Scale install playbook
    • 6.6. Run Webapp install playbook
  • 7. Check the installation
  • Uninstalling Integreatly
  • Troubleshooting
    • Self Signed Certs with Che

Overview

The purpose of this repository is to provide a set of Ansible playbooks that can be used to install a range of Red Hat middleware products on Openshift.

These products include:

• Single Sign On

• Managed Services Broker

• EnMasse

• Eclipse Che

• Launcher

• 3Scale

Prerequisites

Table 1. Prerequisites

Requirement	Version
Ansible	>= v2.6
Openshift Container Platform	>= v3.10
Openshift CLI (OC)	>= v3.10

⚠️	SSH Access to Openshift master(s) Cluster administrator permissions The ssh user defined in the inventory, ansible_user, needs have sudo permission

Installation Steps

The following section demonstrates how to install each of the products listed above on an existing Openshift cluster.

1. Clone installation GIT repository locally

git clone https://github.com/integr8ly/installation.git

2. Create the inventory hosts file

1. Create the host file based on the template(../evals/inventories/hosts.default). Following the an example.

   $ cp evals/inventories/hosts.template evals/inventories/hosts

2. Update the host file to connect in your OpenShift cluster

   Prior to running the playbooks the master hostname and associated SSH username must be set in the inventory host file to match the target cluster configuration. The following example sets the SSH username to evals and the master hostname to master.evals.example.com:

   ~/installation/evals/inventories/hosts
   
   [local:vars]
   ansible_connection=local
   
   [local]
   127.0.0.1
   
   [OSEv3:children]
   master
   
   [OSEv3:vars]
   ansible_user=evals
   
   [master]
   master.evals.example.com

   ℹ️	It is possible to add the variable ansible_ssh_private_key_file for the master host when the ssh connection requires a public key.(E.g`ansible_ssh_private_key_file=~/.ssh/ocp-workshop.pem`)

3. Check the connection with the OpenShift cluster

Run the following command in order to check the connection with the OpenShift cluster from the /installation/evals.

$ ansible -m ping all

Following an example of the expected output.

$ ansible -m ping all
127.0.0.1 | SUCCESS => {
    "changed": false,
    "ping": "pong"
}
master.example.openshiftworkshop.com | SUCCESS => {
    "changed": false,
    "ping": "pong"
}

4. Log into OpenShift

Before run the scripts it is required login via oc client tool to the master/OCP. Following an example.

oc login master.example.openshiftworkshop.com -u <user> -p <password>

You can install Integreatly using either of the following options:

1. Install all products from a single playbook

2. Install each product individually

5. Install all products from a single playbook

All products can be installed using the install.yml playbook located in the evals/playbooks/ directory.

Before running the installer, please consider the following variables:

Table 2. Install playbook variables

Variable	Description
eval_self_signed_certs	Whether the OpenShift cluster uses self-signed certs or not. Defaults to true
eval_threescale_enable_wildcard_route	Whether 3Scale enables wildcard routing. Defaults to false
github_client_id	GitHub OAuth client ID to enable GitHub authorization for Launcher. If not defined, GitHub authorization for Launcher will be disabled
github_client_secret	GitHub OAuth client secret to enable GitHub authorization for Launcher. If not defined, GitHub authorization for Launcher will be disabled
prerequisites_install	Boolean var that skips the installation of system wide tools/packages that are required by the installer if set to false (needs to be set to false when running the installer in a linux container) - defaults to true.

5.1. Create GitHub OAuth to enable GitHub authorization for Launcher

1. Login into GitHub

2. Go to Settings >> Developer Settings >> New OAuth App. Following an image as example to ilustrate this area.

   

3. Add the following fields values

   Table 3. Fields values descriptions

   Field	Value
   Application Name	Any value
   Home Page URL	http://localhost
   Authorization callback URL	http://localhost

   ❗	The callback URL is a placeholder for now and will be changed after the installation playbook is finished.

4. Click on Register Application

5. The values found in GitHub OAuth App, Client ID and Client Secret, will be required in the next step to install Integreatly enabling GitHub authorization for Launcher. Following an example of this screen.

   

5.2. Run the playbook

$ oc login https://<openshift-master-url> -u <user> -p <password>
$ cd evals/
$ $ ansible-playbook -i inventories/hosts playbooks/install.yml -e github_client_id=<your_client-id> -e github_client_secret=<your_client_secret>

💡	The following command installs Integreatly without GitHub authorization for Launcher. $ ansible-playbook -i inventories/hosts playbooks/install.yml

5.3. Add the generated Authorization callback URL to GitHub OAuth

Following and example of the output made at the end of the playbook with this URL.

TASK [debug] *************************************************************************************************************************************************************************************************
ok: [127.0.0.1] => {
    "msg": "All services have been provisioned successfully. Please add 'https://launcher-sso-launcher.apps.example.openshiftworkshop.com/auth/realms/launcher_realm/broker/github/endpoint' as the Authorization callback URL of your GitHub OAuth Application."
}

The http://localhost placeholder added in the GitHub OAuth App should be replaced with this value. Following an example.

6. Install each product individually

Each product has an associated install playbook available from the evals/playbooks/ directory.

6.1. Run Single Sign On install playbook

$ oc login https://<openshift-master-url>
$ cd evals/
$ ansible-playbook -i inventories/hosts playbooks/rhsso.yml

Upon completion, a new identity provider named rh_sso should be presented on the Openshift master console login screen.

⚠️	The default login credentials are [email protected] / Password1

To configure custom account credentials, simply override the rhsso role environment variables by specifying user parameters as part of the install command:

$ ansible-playbook -i inventories/hosts playbooks/rhsso.yml -e rhsso_evals_username=<username> -e rhsso_evals_password=<password>

6.2. Run EnMasse install playbook

$ oc login https://<openshift-master-url>
$ cd evals/
$ ansible-playbook -i inventories/hosts playbooks/enmasse.yml

Once the playbook has completed a service named EnMasse (standard) will be available in the Service Catalog. This can be provisioned into your namespace to use EnMasse.

6.3. Run Che install playbook

Set the following variables:

Table 4. Che installer playbook variables

Variable	Description
che_route_suffix	The router suffix of the OpenShift cluster
che_keycloak_host	The route to the previously created SSO, without protocol
che_keycloak_user	Username to authenticate as, this would be the admin user by defaul
che_keycloak_password	Password of the user
che_namespace	The namesapce to provision che into
che_infra_namespace	This can usually be the same as che_namespace

$ oc login https://<openshift-master-url>
$ cd evals/
$ ansible-playbook -i inventories/hosts playbooks/che-install.yml

6.4. Run Launcher install playbook

The Launcher playbook also requires information about the existing SSO that was provisioned previously. It needs to know the route of the SSO. This can be retrieved using:

$ oc get route sso -o jsonpath='{.spec.host}' -n rhsso

It also needs to know the realm to interact with. By default this would be openshift. Finally it needs the credentials of a user to login as, by default this would be the admin user created by the SSO playbook.

Specify the following variables in the inventory files or as --extra-vars when running the playbook.

Table 5. Launcher installer playbook variables

Variable	Description
launcher_openshift_sso_route	The route to the previously created SSO, without protocol
launcher_openshift_sso_realm	The realm to create resources in the SSO, this would be openshift by default
launcher_openshift_sso_username	Username to authenticate as, this would be the admin user by default
launcher_openshift_sso_password	Password of the user

If using self signed certs set launcher_sso_validate_certs to no/false. Without this, an error will be thrown similar to this:

fatal: [127.0.0.1]: FAILED! => {"msg": "The conditional check 'launcher_sso_auth_response.status == 200' failed. The error was: error while evaluating conditional (launcher_sso_auth_response.status == 200): 'dict object' has no attribute 'status'"}

Next, run the playbook.

$ oc login https://<openshift-master-url>
$ cd evals
$ ansible-playbook -i inventories/hosts playbooks/launcher.yml

Once the playbook has completed it will print a debug message saying to update the Authorization callback URL of the GitHub OAuth Application. Once this is done the launcher setup has finished.

6.5. Run 3Scale install playbook

⚠️	3Scale requires access to ReadWriteMany PVs. As such, it will only work on Openshift clusters that have RWX PVs available.

$ oc login https://<openshift-master-url>
$ cd evals/
$ ansible-playbook -i inventories/hosts playbooks/3scale.yml -e threescale_route_suffix=<openshift-router-suffix> -e enable_wildcard_route=<true/false>

6.6. Run Webapp install playbook

$ oc login https://<openshift-master-url>
$ cd evals/
$ ansible-playbook -i inventories/hosts playbooks/webapp.yml

7. Check the installation

❗	Once the installation has finished you will no longer be able to login via the Openshift console or oc cli as the admin if there is an sso redirect in place. The new admin user is [email protected] password is Password1

The URL for the Integraly view is https://tutorial-web-app-webapp.apps.<domain>/ For example, if the master url is https://master.example.openshiftworkshop.com/, the web app is available at https://tutorial-web-app-webapp.apps.example.openshiftworkshop.com/.

💡	The project Webapp is responsible for the Integraly interface. You can find the URL looking for the router created for this project. As the following example.

Also, with the evals users created by the installer is possible to check the services in the OpenShift catalog.

❗	The default login credentials are [email protected] / Password1

Following an image of this console as example.

Uninstalling Integreatly

Run the uninstall.yml playbook from inside the evals directory:

$ cd evals/
$ ansible-playbook -i inventories/hosts playbooks/uninstall.yml

By default this will delete all user-created namespaces as well, if you wish to keep these namespaces then add the following flag:

-e keep_namespaces=true

Troubleshooting

Message "You need to install \"jmespath\" prior to running json_query filter" is shown when the installation fails

The issue means that python version used by Ansible has not this required module. In order to fix it is required to install the missing module. Following the command to install it via pip.

$ pip install jmespath

ℹ️	The module need to be installed in the same version of python used by Ansible. Use the command $ ansible --version to check this path.

Message "jsonpointer module is not available" is shown when the installation fails

The issue means that python version used by Ansible has not this required module. In order to fix it is required to install the missing module. Following the command to install it via pip.

$ pip install jsonpointer

Also, you might need to use the varible ansible_python_interpreter in the host file to fix it, for example:

[local:vars]
ansible_connection=local
ansible_python_interpreter=python

💡	The module need to be installed in the same version of python used by Ansible. Use the command $ ansible --version to check this path.

Self Signed Certs with Che

If your cluster is using a self signed (non CA) certificate, there are a couple of things that needs to be noted.

• Che will only allow the creation of one workspace when self signed certificates are used.

• When a workspace is created, the following errors may appear on the workspace:

Connection failed with terminal
Some error happened with terminal WebSocket connection

Failed to import project

• In order to solve these issues, you will need to accept the certs for all the routes that was created for that workspace. These routes are listed in the workspace deployment within the Che namespace.