291 lines
11 KiB
ReStructuredText
291 lines
11 KiB
ReStructuredText
Variable with multiple values
|
|
================================
|
|
|
|
.. objectives:: Objectives
|
|
|
|
After creating another variable for the needs of our use case, we will introduce the concept of multiple type variable.
|
|
It is more or less some kind of a container variable.
|
|
|
|
.. prerequisites:: Prerequisites
|
|
|
|
- We assume that Rougail's library is :ref:`installed <installation>` on your computer.
|
|
|
|
- It is possible to retrieve the current state of the various Rougail files manipulated in this tutorial step
|
|
by checking out the corresponding tag of the `rougail-tutorials` git repository.
|
|
Each tag corresponds to a stage of progress in the tutorial.
|
|
Of course, you can also decide to copy/paste or download the tutorial files contents while following the tutorial steps.
|
|
|
|
If you want to follow this tutorial with the help of the corresponding :tutorial:`rougail-tutorials git repository <src/branch/v1.1>`,
|
|
this workshop page corresponds to the tags :tutorial:`v1.1_100 <src/tag/v1.1_100/README.md>` to :tutorial:`v1.1_111 <src/tag/v1.1_111/README.md>`
|
|
in the repository.
|
|
|
|
::
|
|
|
|
git clone https://forge.cloud.silique.fr/stove/rougail-tutorials.git
|
|
git switch --detach v1.1_100
|
|
|
|
.. type-along:: A web_address variable
|
|
|
|
A conditional disabled variable with type web_address
|
|
-------------------------------------------------------------
|
|
|
|
First we need to add a variable as part of our use case with a type we haven't used yet, the `web_address` type.
|
|
It is related to the automatic proxy configuration :term:`situation <configuration>`.
|
|
Let's put it in the new :file:`firefox/30-auto.yml` :term:`structure file`.
|
|
Note that this variable has a :term:`disabled` property defined:
|
|
|
|
.. extinclude:: https://forge.cloud.silique.fr/stove/rougail-tutorials/raw/commit/v1.1_100/firefox/30-auto.yml
|
|
:language: yaml
|
|
:caption: The :file:`firefox/30-auto.yml` structure definition file with the `auto` variable
|
|
|
|
..
|
|
%YAML 1.2
|
|
---
|
|
version: 1.1
|
|
|
|
auto:
|
|
description: Automatic proxy configuration URL
|
|
type: web_address
|
|
disabled:
|
|
variable: _.proxy_mode
|
|
when_not: Automatic proxy configuration URL
|
|
...
|
|
|
|
If the `proxy_mode` variable has the `"Automatic proxy configuration URL"` value, the `auto` variable is enabled.
|
|
It is :term:`disabled` otherwise.
|
|
|
|
Let's launch the Rougail CLI on this :term:`user data file <user data>`:
|
|
|
|
.. extinclude:: https://forge.cloud.silique.fr/stove/rougail-tutorials/raw/commit/v1.1_100/config/03/config.yml
|
|
:language: yaml
|
|
:caption: The :file:`config/03/config.yml` user data file
|
|
|
|
..
|
|
---
|
|
proxy_mode: Automatic proxy configuration URL
|
|
auto: https://auto.proxy.net/wpad.dat
|
|
|
|
we have this output:
|
|
|
|
.. raw:: html
|
|
:url: https://forge.cloud.silique.fr/stove/rougail-tutorials/raw/commit/v1.1_100/config/03/output_ro.html
|
|
:class: output
|
|
|
|
..
|
|
╭────────────── Caption ───────────────╮
|
|
│ Variable Modified value │
|
|
│ (⏳ Original default value) │
|
|
╰──────────────────────────────────────╯
|
|
Variables:
|
|
┣━━ 📓 Configure Proxy Access to the Internet: Automatic proxy configuration URL ◀ loaded from the YAML file "config/03/config.yml" (⏳ No proxy)
|
|
┗━━ 📓 Automatic proxy configuration URL: https://auto.proxy.net/wpad.dat ◀ loaded from the YAML file "config/03/config.yml"
|
|
|
|
We can see that the `auto` variable has been activated here in this :term:`situation <configuration>`.
|
|
|
|
A conditional disabled non mandatory variable with type domainname and parameters
|
|
--------------------------------------------------------------------------------------
|
|
|
|
.. type-along:: For those who follow the tutorial with the help of the git repository
|
|
|
|
Now you need to checkout the :tutorial:`v1.1_110 <src/tag/v1.1_110/README.md>` version::
|
|
|
|
git switch --detach v1.1_110
|
|
|
|
|
|
In order to fit with our use case, we need a variable that takes as its value the domain names that are allowed to pass through the proxy, if it is enabled. We already used before in this tutorial the `domainname` type, which perfectly matches our needs here.
|
|
We will just need to add certain parameters associated to this `domainname` type, as we will see.
|
|
We're gonna put it in another :term:`structure file` named :file:`firefox/40-no_proxy.yml`.
|
|
|
|
.. extinclude:: https://forge.cloud.silique.fr/stove/rougail-tutorials/raw/commit/v1.1_110/firefox/40-no_proxy.yml
|
|
:language: yaml
|
|
:caption: The :file:`firefox/40-no_proxy.yml` structure file with the domains that are allowed to pass through the proxy
|
|
|
|
..
|
|
%YAML 1.2
|
|
---
|
|
version: 1.1
|
|
|
|
no_proxy:
|
|
description: Address for which proxy will be desactivated
|
|
type: domainname
|
|
params:
|
|
allow_ip: true
|
|
allow_cidr_network: true
|
|
allow_without_dot: true
|
|
allow_startswith_dot: true
|
|
mandatory: false
|
|
disabled:
|
|
variable: _.proxy_mode
|
|
when: No proxy
|
|
...
|
|
|
|
This `no_proxy` variable is a `domainname` with some additional parameters, we authorize
|
|
values like:
|
|
|
|
- IP
|
|
- CIDR networks
|
|
- machine names (without `'.'`)
|
|
- sub-domaines like `.example`
|
|
|
|
To clarify things, let's launch the Rougail CLI
|
|
|
|
.. raw:: html
|
|
:url: https://forge.cloud.silique.fr/stove/rougail-tutorials/raw/commit/v1.1_110/config/02/cmd_ro.txt
|
|
:class: terminal
|
|
|
|
..
|
|
rougail -m firefox/ --types types/proxy -u yaml -yf config/02/config.yml
|
|
|
|
On this :term:`user data`:
|
|
|
|
.. extinclude:: https://forge.cloud.silique.fr/stove/rougail-tutorials/raw/commit/v1.1_110/config/02/config.yml
|
|
:language: yaml
|
|
:caption: Automatic proxy configuration :file:`config/02/config.yml` user data file with a pass through domain name
|
|
|
|
..
|
|
---
|
|
proxy_mode: Automatic proxy configuration URL
|
|
auto: https://auto.proxy.net/wpad.dat
|
|
no_proxy: 192.168.1.0/24
|
|
|
|
We then have this output:
|
|
|
|
.. raw:: html
|
|
:url: https://forge.cloud.silique.fr/stove/rougail-tutorials/raw/commit/v1.1_110/config/02/output_ro.html
|
|
:class: output
|
|
|
|
..
|
|
╭────────────── Caption ───────────────╮
|
|
│ Variable Modified value │
|
|
│ (⏳ Original default value) │
|
|
╰──────────────────────────────────────╯
|
|
Variables:
|
|
┣━━ 📓 Configure Proxy Access to the Internet: Automatic proxy configuration URL ◀ loaded from the YAML file "config/02/config.yml" (⏳ No proxy)
|
|
┣━━ 📓 Automatic proxy configuration URL: https://auto.proxy.net/wpad.dat ◀ loaded from the YAML file "config/02/config.yml"
|
|
┗━━ 📓 Address for which proxy will be desactivated: 192.168.1.0/24 ◀ loaded from the YAML file "config/02/config.yml"
|
|
|
|
We can see the address for which proxy will be desactivated in the output.
|
|
|
|
A variable with multiple values
|
|
-----------------------------------
|
|
|
|
.. type-along:: For those who follow the tutorial with the help of the git repository
|
|
|
|
Now you need to checkout the :tutorial:`v1.1_111 <src/tag/v1.1_111/README.md>` version::
|
|
|
|
git switch --detach v1.1_111
|
|
|
|
It's easy to find out what the next step is: we would now need some kind of a container type,
|
|
which would allow us to set not only one domain name but a list of domain names for which the proxy will be disabled.
|
|
|
|
Making this change requires adding one line, just one, to our variable,
|
|
have a look at the `multi: true` parameter:
|
|
|
|
.. extinclude:: https://forge.cloud.silique.fr/stove/rougail-tutorials/raw/commit/v1.1_111/firefox/40-no_proxy.yml
|
|
:language: yaml
|
|
:caption: The :file:`firefox/40-no_proxy.yml` structure file with the pass through domains set to `multi`
|
|
|
|
..
|
|
%YAML 1.2
|
|
---
|
|
version: 1.1
|
|
|
|
no_proxy:
|
|
description: Address for which proxy will be desactivated
|
|
type: domainname
|
|
params:
|
|
allow_ip: true
|
|
allow_cidr_network: true
|
|
allow_without_dot: true
|
|
allow_startswith_dot: true
|
|
multi: true
|
|
mandatory: false
|
|
disabled:
|
|
variable: _.proxy_mode
|
|
when: No proxy
|
|
...
|
|
|
|
|
|
.. questions:: Question
|
|
|
|
|
|
What difference does it make?
|
|
|
|
Fist, note that the `no_proxy` variable is still a `domainname` type.
|
|
The type hasn't changed.
|
|
|
|
|
|
Now let's launch the Rougail CLI with the `no_proxy` variable containing a list:
|
|
|
|
.. extinclude:: https://forge.cloud.silique.fr/stove/rougail-tutorials/raw/commit/v1.1_111/config/02/config.yml
|
|
:language: yaml
|
|
:caption: Automatic proxy configuration :file:`config/02/config.yml` user data file with a pass through domain name
|
|
|
|
..
|
|
%YAML 1.2
|
|
---
|
|
version: 1.1
|
|
|
|
no_proxy:
|
|
description: Address for which proxy will be desactivated
|
|
type: domainname
|
|
params:
|
|
allow_ip: true
|
|
allow_cidr_network: true
|
|
allow_without_dot: true
|
|
allow_startswith_dot: true
|
|
multi: true
|
|
mandatory: false
|
|
disabled:
|
|
variable: _.proxy_mode
|
|
when: No proxy
|
|
...
|
|
|
|
.. raw:: html
|
|
:url: https://forge.cloud.silique.fr/stove/rougail-tutorials/raw/commit/v1.1_111/config/02/cmd_ro.txt
|
|
:class: terminal
|
|
|
|
..
|
|
rougail -m firefox/ --types types/proxy -u yaml -yf config/02/config.yml
|
|
|
|
Now we have this output:
|
|
|
|
.. raw:: html
|
|
:url: https://forge.cloud.silique.fr/stove/rougail-tutorials/raw/commit/v1.1_110/config/02/output_ro.html
|
|
:class: output
|
|
|
|
..
|
|
╭────────────── Caption ───────────────╮
|
|
│ Variable Modified value │
|
|
│ (⏳ Original default value) │
|
|
╰──────────────────────────────────────╯
|
|
Variables:
|
|
┣━━ 📓 Configure Proxy Access to the Internet: Automatic proxy configuration URL ◀ loaded from the YAML file "config/02/config.yml" (⏳ No proxy)
|
|
┣━━ 📓 Automatic proxy configuration URL: https://auto.proxy.net/wpad.dat ◀ loaded from the YAML file "config/02/config.yml"
|
|
┗━━ 📓 Address for which proxy will be desactivated:
|
|
┣━━ example.net ◀ loaded from the YAML file "config/02/config.yml"
|
|
┗━━ 192.168.1.0/24 ◀ loaded from the YAML file "config/02/config.yml"
|
|
|
|
.. questions:: Answer to the question
|
|
|
|
So, the difference it makes is: yes, we have a list now.
|
|
|
|
We call this a :term:`multiple <multi>` variable.
|
|
|
|
.. glossary::
|
|
|
|
multi
|
|
|
|
A multiple variable, in short, a multi, is a variable that has a list of values.
|
|
|
|
Note that we have more than just a simple container here.
|
|
The real challenge is maintaining the consistency of the :term:`configuration`
|
|
exactly the same way as if we only had one value to manage.
|
|
|
|
A multi is a multiple variable, that is a variable that can have multiple values.
|
|
|
|
.. keypoints:: Key points
|
|
|
|
We have now some kind of a container facility named `multi`, that can be applied
|
|
to a variable simply by setting the `multi: true` parameter.
|
|
|