Modifying a Configuration File

This action aims to modify the specified content in a file by identifying specific identifiers. The following figure shows the configuration page.

**Table 1** Parameters
Parameter	Description
Action Name	Name of an action displayed in the deployment actions area.
Environment	Target environment.
Absolute Path	Absolute path of the configuration file to modify. Modify a single file, for example, /usr/local/server.config. Modify multiple files, for example, /usr/local/server.config;/usr/local/a.txt. The wildcard character () can be used, for example, /usr/local/.config. However, you cannot separate multiple wildcards using semicolons (;), for example, /usr/local/.config;/usr/local/.txt**.
Prefix and Suffix	Parameter reference flag. If no prefix or suffix is matched, the configuration file remains unchanged and no error is reported in logs.
Control Options	Enable this action. Continue the task even if this action fails. Execute this action with the sudo permission.

To change the service port, perform the following steps:

Open the configuration file and view the content.

Figure 1 Viewing the configuration file
Change the prefix label and suffix label. For example, change the prefix to ${ and the suffix to }.
On the Parameters tab, set Name and Default Value.
Save the configuration and deploy the application.
After the deployment is complete, open the configuration file again.

The value of ${port} is changed to 8080.
Figure 2 Viewing the configuration file