Chapter 3: Configuration

Warning

This documentation is out of date. For more information please check Gateway Documentation at Software part of the Handbook.

• Configuration Basics
• Configuration Hierarchy
• Adding and Modifying Configuration
• Modifying Configuration
• Deleting Configuration
• Run Command
• Discard All Uncommitted Changes
• Saving Configuration
• List of Current Operational Mode Commands

This chapter introduces you to basic configuration concepts, and then walks you through one configuration scenario:

• Basic system configuration tasks

This chapter presents the following topics:

• Configuration Basics
• Scenario: Basic System Configuration

Configuration Basics

This section presents the following topics

• Configuration Hierarchy
• Adding and Modifying Configuration
• Deleting Configuration
• Committing Configuration Changes
• Discarding Configuration Changes
• Saving Configuration

Configuration Hierarchy

From the system’s point of view, a configuration node is different from a simple configuration attribute statement. A configuration attribute statement takes the form of attribute value, as in the following example.

rule 1 action test

A configuration node always has an enclosing pair of braces:

rule 2 {
    description test
}

Adding and Modifying Configuration

Add new configuration by creating a configuration node, using the set command in configuration mode. Modify existing configuration also by using the set command in configuration mode.

Example 3-1 Add configuration

[d0a09d] conf $ set rule-engine rule 1 action test start-electrolyser device <EL_DEVICE_ID>
[d0a09d] conf $

Now use diff command to see the addition.

[d0a09d] conf $ diff
  rule-engine {
    devices {
      electrolyser 8BF3C483286E348B0045E9F15EBCB67EFC268B4A {
        enabled true
      }
    }
+   rule 1 {
+     description test
    }
  }

Note the “+” in front of the new statement. This shows that this statement has been added to the configuration but the change is not yet committed. The change does not take effect until configuration is committed using the commit command.

Modifying Configuration

For the most part, modifying configuration is the same as adding configuration by using the set command. This works for identifiers of nodes containing a single instance.

Deleting Configuration

You can delete configuration statements or complete configuration nodes using the delete command.

[d0a09d] conf $ delete rule-engine rule 2
[d0a09d] conf $ diff
-   rule 2 {
-     description test
-   }

Note that the deleted parts of configuration have "-" in front of the statement.

Run Command

You can execute operational mode commands from configuration mode using run command.

[d0a09d] conf $ run show configuration commands
set rule-engine devices electrolyser <EL_DEVICE_ID> enabled "true"
set rule-engine devices electrolyser <EL_DEVICE_ID> power "2400"  

Note that you can also use bash commands with run command.

Discard All Uncommitted Changes

To discard all uncommitted changes use discard command. It's faster than delete all changes you don't want to have.

Note that show command or diff command won't display any "-" or "+" as diff compares current configuration with committed one.

Saving Configuration

To prevent your configuration from deleting with reboot, you need to save it.

[d0a09d] conf $ save
[d0a09d] conf $

List of Current Operational Mode Commands

Command	Description
run	Run an operational-mode command
exit	Exit configuration mode
commit	Commit the current set of changes
discard	Discard uncommitted changes
edit	Edit node value in editor
cd	Step into node
rollback	Rollback to a prior config revision
save	Save current configuration
diff	Show state diff
show	Show state value
set	Set value
delete	Delete value