Jay Singh

IT professional with a strong emphasis on Jamf and macOS management, dedicated to enhancing operational efficiency and problem-solving. Passionate about leveraging cloud technologies in projects and committed to continuous learning for career development and growth.

1 minute read

Jamf Composer is a powerful tool that simplifies the process of creating custom packages for macOS devices managed by Jamf Pro. In this article, we’ll walk you through the steps to create Jamf packages using Jamf Composer, and we’ll also cover signing the package via Keychain.

Step 1: Launch Jamf Composer

To begin, open the Jamf Composer application on your macOS device.

Step 2: Choose a Package Type

Jamf Composer offers two package types: DMG and PKG. Select the package type that best fits your needs.

Step 3: Add Items to the Package

Drag and drop items from Finder to the package in Jamf Composer. You can include files, folders, and applications.

Step 4: Configure Package Settings

Click the ‘Settings’ tab to configure the package’s identifier, version number, and other metadata.

Step 5: Save the Package

Choose ‘File’ > ‘Save As’ to save the package to your desired location.

Step 6: Build the Package

Click the ‘Build’ button in the toolbar or choose ‘File’ > ‘Build’ to build the package.

Step 7: Sign the Package (Optional)

To sign the package with a signing certificate from Jamf Pro’s built-in certificate authority (CA):

  1. Log in to your Jamf Pro instance.
  2. Navigate to ‘Settings’ > ‘Global Management’ > ‘PKI Certificates’.
  3. Click ‘New’ to create a new certificate.
  4. Choose the ‘Create a certificate signed by the Jamf Pro built-in CA’ option.
  5. Fill in the required information, such as certificate name, common name, organization, and organizational unit.
  6. Select ‘Developer ID Installer’ as the certificate type.
  7. Click ‘Save’ to generate the certificate.

After creating the certificate in Jamf Pro, follow these steps to sign the package using the certificate:

  1. Download the certificate from Jamf Pro and import it into the ‘Keychain Access’ application on your macOS device.
  2. In Jamf Composer, click the ‘Settings’ tab.
  3. In the ‘Signing’ section, select the ‘Sign package’ checkbox.
  4. Choose your Developer ID Installer certificate from the dropdown menu.

By signing the package, you ensure that it is trusted by macOS and can be installed without security warnings.

Step 8: Test the Package

Deploy the package to a test device to ensure that it works as intended.

By following these steps, you can create custom Jamf packages with Jamf Composer and sign them with a Developer ID Installer certificate from your keychain. This process simplifies package creation for macOS devices managed by Jamf Pro, allowing for seamless deployment and management.

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