# Chapter 3: Configuration
Warning
This documentation is out of date. For more information please check Gateway Documentation at Software part of the Handbook.
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 |