Placeholders are really useful to variabilize settings that need to be distributed
across all your Talend Runtime container(s). They are defined via the syntax
in the resources and configuration files.
To create a new placeholder, complete the following:
On the upper half of the Provisioning page, click the Placeholders tab.
From the toolbar on the Placeholders tab, click Add to show the configuration panel to the right.
Enter the following information as necessary.
Type in a category of the placeholder. (The category of the placeholder should be the same as the one of the profile to be used with that palceholder.)
Type in a name for the placeholder to be created in the Talend Runtime container.
Type in the value corresponding to the placeholder.
Click Save to save your changes or Cancel to cancel it.
Once the placeholder created, release it. For more information about releasing a placeholder, see Releasing a placeholder.