Question

1

Netplan file order

rated 0 times [ 1] [ 0] / answers: 1 / hits: 391 / 2 Years ago, sun, may 29, 2022, 11:53:48

I need help understanding the order in which the netplan config files are applied and, if possible, how to set a fallback config.

Scenario:

Let's say I have two config files, A and B.

Config files A and B both set the same ethernet interfaces in
different ways. (different auth methods...)

Config A file name is : 01-config.yaml

Config B file name is : 99-config.yaml

Question:

Which config file will be applied?

Would config B work as a fallback if config A didn't work? Or the other way around? Or neither?

I want to set a fallback config file in case the existing one(A) fails. Is that possible?

Thanks ?

Answers

Only authorized users can answer the question. Please sign in first, or register a free account.

mugustered

Add To Favorites

Follow

Total Points: 193

Total Questions: 123

Total Answers: 108

Location: Bermuda

Member since Wed, Mar 22, 2023

1 Year ago

mugustered questions

1 What is the need of multiple users in linux?

Sat, Nov 19, 22, 07:03, 1 Year ago

1 How to split / combine 3 HDMI audios to front-left, front-cetner, front-right?

Tue, Feb 7, 23, 04:32, 1 Year ago

1 Issues the spotify widget for Conky

Fri, Dec 23, 22, 15:02, 1 Year ago

1 How can I move a Ubuntu installation to a new drive if it has other partitions?

Fri, Jan 21, 22, 18:23, 2 Years ago

1 root cron job doesn't work (18.04 LTS SERVER)

Sun, Mar 5, 23, 02:51, 1 Year ago

View All

answered 2 Years ago vigorousom · Accepted Answer

A and B are not "separate" configs -- they are the building blocks of a single config.

They are cumulative. Example:

01-File:           02-File:

XYZ                XYZ

  Foo: True          Bar: [1,2,3]



Final config:

XYZ

  Foo: True

  Bar: [1,2,3]

The order of the files (01-99) is important when you have conflicting settings. Earlier settings are overwritten by later. This offers you the opportunity to override settings by placing a new file instead of editing the current files (much better for automated changes). Example:

01-File:           02-File:             03-File:

XYZ                XYZ                  XYZ

  Foo: True          Bar: [1,2,3]         Baz: Blue

  Baz: Green         Foo: False



Final config:

XYZ

  Foo: False

  Bar: [1,2,3]

  Baz: Blue