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Using Moodle to Build an Online Learning System

Updated on 2025-02-14 GMT+08:00

Application Scenario

Moodle is an open-source online education system for global users and can be used for online learning. The Moodle application image uses the Ubuntu 22.04 and is deployed using Docker. The Moodle application and the required operating environment have been preconfigured. This section describes how to install and deploy a Moodle application.

Resource Planning and Costs

Resource

Configuration

Description

Cloud server

  • vCPUs: 2
  • Memory: 2 GiB

Select appropriate instance specifications based on your service requirements.

Image

Moodle

Select the Moodle application image.

Security group

Inbound rule:

  • Protocol/Application: TCP
  • Port: 80, 443, 9001, 9000
  • Source: 0.0.0.0/0
  • 80: Specifies the internal forwarding port of an application.
  • 443: Allows HTTPS traffic to FlexusL instances.
  • 9001: Allows external access to the application dashboard.
  • 9000: Allows external access to the application O&M page.

Process

Procedure

Description

Step 1: Purchase FlexusL Instances

Purchase a FlexusL instance and select the Moodle application image.

Step 2: Configure Security Groups

Add inbound security group rules to allow traffic from ports 80, 443, 9000, and 9001 to access the application.

Step 3: Reset a Password

A FlexusL instance does not have an initial password. After creating a FlexusL instance, set a password for the FlexusL instance.

Step 4: Initialize Moodle.

The image application dashboard needs to be initialized only when you log in for the first time.

Step 5: Deploy an Application

Deploy an application on the visualization application management page.

Step 1: Purchase FlexusL Instances

  1. Log in to the FlexusLconsole and click Buy FlexusL.
  2. Specify required parameters for the FlexusL instance.

    Parameter

    Example

    Description

    Region

    CN-Hong Kong

    For low network latency and quick resource access, select the region nearest to your target users. After a FlexusL instance is created, the region cannot be changed. Exercise caution when selecting a region.

    Application Image

    Moodle

    Select the Moodle application image.

    Instance Specifications

    2 vCPUs | 2 GiB | System disk 60 GiB

    Select instance specifications as needed.

    Instance Name

    Moodle-Example

    Customize an instance name that is easy to identify, for example, Moodle-Example.

    (Optional) Associated Service

    • Data Disk: 10 GiB
    • Host Security
    • Cloud Backup Vault: 70 GiB

    You can bundle any of EVS, HSS (basic edition), and CBR to your FlexusL instances as needed and set specifications as needed.

    Required Duration

    1 month

    The minimum duration of a purchase is one month and the maximum duration is three years.

    Auto-renew is enabled by default, which means the purchased FlexusL instances will be automatically renewed before they expire. If you do not enable auto-renew during the purchase process, you can still enable it later after the instances are created. For more information about auto-renewal rules, see Auto-Renewal Rules.

    Quantity

    1

    Set the number of FlexusL instances to be purchased.

  3. Click Buy Now and complete the payment as prompted.
  4. Go back to the FlexusL console and view the purchased FlexusL instance.

Step 2: Configure Security Groups

Add inbound security group rules to allow traffic from ports 80, 443, 9000, and 9001 to access the application.

  1. Log in to the FlexusL console and click a resource card to go to the instance details page.
  2. In the navigation pane on the left, choose Cloud Servers. Locate the server and click its name.

  3. On the Security Groups tab, click Add Rule. In the displayed dialog box, add rules displayed in the following figure and click OK.

    The following figure only displays common rules. You can add more rules as needed.

    Table 1 Security group rules

    Priority

    Action

    Type

    Protocol & Port

    Source

    Description

    1

    Allow

    IPv4

    TCP: 80

    0.0.0.0/0

    Specifies the internal forwarding port of an application.

    1

    Allow

    IPv4

    TCP: 443

    0.0.0.0/0

    Allows HTTPS traffic to FlexusL instances.

    1

    Allow

    IPv4

    TCP: 9000

    0.0.0.0/0

    Allows external access to the application O&M page.

    1

    Allow

    IPv4

    TCP: 9001

    0.0.0.0/0

    Allows external access to the application dashboard.

Step 3: Reset a Password

A FlexusL instance does not have an initial password. After creating a FlexusL instance, set a password for it. The password of the FlexusL instance is also used for logging in to the O&M page of the application.

  1. In the Image area on the Overview page of the FlexusL console, click Access to go to the application dashboard and check whether the application has been up and running. If yes, go to the next step.
    NOTICE:

    Wait for several minutes until the image with the pre-installed application is up and running. Then, you can perform operations such as restarting or stopping the instance, or resetting the password. Otherwise, the initial password may become invalid and you cannot log in to the application dashboard.

    Figure 1 Entry to the application dashboard

    After the application is started, the initialization wizard page of the dashboard is displayed, as shown in Figure 2.

    Figure 2 Initialization wizard page of the Moodle dashboard
    NOTE:

    If the dashboard is not properly displayed, check the following causes:

    • The port for accessing the dashboard is not allowed. Check whether the port is allowed based on Step 2: Configure Security Groups.
    • The dashboard is being started. Try again later.
  2. Locate the resource card and choose > Reset Password to reset the password.

    For details, see Resetting the Password for a FlexusL Instance.

    Figure 3 Resetting a password
    NOTE:

    The password for logging in to the FlexusL instance is also the password for logging in to the O&M page of the application.

Step 4: Initialize Moodle.

Application images use code-based Ubuntu. They provide graphical user interfaces to make your operations easier. You need to initialize the application dashboard upon the first login. Then you can directly log in to the dashboard from the FlexusL console afterwards.

  1. In the address bar of a local browser, enter http://<Server-EIP>:9000 to log in to the application O&M page.

    The initial username and password for logging in to the application dashboard are stored on the O&M page of the application. You need to log in to the O&M page first to obtain the username and password. The username for logging in to the O&M page is root, and the login password is the one reset in 2.

    NOTE:

    For details about the FlexusL instances, O&M page, and dashboard, see What Is the Relationship Among FlexusL Instances, the Dashboard, and the O&M Page?

  2. On the My Apps page, click the application icon, choose Access, and click Initial Account to view the username and password for logging in to the application management page.

    The initial password is a randomly generated strong password. After the application is initialized, change the password on the dashboard for easy management. If the password is changed, the initial password will be invalid. Remember the new password.

  3. In the Image area on the Overview page of the FlexusL console, click Access to go to the application dashboard.
    Figure 4 Entry to the application dashboard
    NOTE:

    If the dashboard is not properly displayed, check the following causes:

    • The port for accessing the dashboard is not allowed. Check whether the port is allowed based on Step 2: Configure Security Groups.
    • The dashboard is being started. Try again later.
  4. Click Log in in the upper right corner.
    Figure 5 Initialization wizard page of the Moodle dashboard
  5. Enter the initial username and password obtained in 2 and click Log in.

    NOTE:

    If a message is displayed indicating that the username or password you entered is invalid when you attempt to log in to the application dashboard, refer to Why Can't I Access the Dashboard of the Application Pre-installed in the Application Image After Entering the Initial Username and Password?

After the Moodle application is initialized, you can deploy your applications on the dashboard.

Step 5: Deploy an Application

For details about how to deploy a Moodle application, see Moodle Service Support.

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