Removed version: from docker-compose examples

Author: dazoulay-simplicite

docs/documentation/devops/code-quality.md

@@ -17,8 +17,6 @@ The easiest way to start a Sonarqube® server is to use the [official Sonarqu
 For instance you can use the following Docker compose file:
 
 ```yaml
-version: "3"
-
 services:
   sonarqube:
     image: sonarqube:community
@@ -34,7 +32,6 @@ services:
       - sonarqube_data:/opt/sonarqube/data
       - sonarqube_extensions:/opt/sonarqube/extensions
       - sonarqube_bundled-plugins:/opt/sonarqube/lib/bundled-plugins
-
   db:
     image: postgres:latest
     restart: always
@@ -44,7 +41,6 @@ services:
       POSTGRES_DB: sonar
     volumes:
       - postgresql_data:/var/lib/postgresql/data
-
 volumes:
   sonarqube_conf:
   sonarqube_data:

docs/documentation/operation/auto-setup.md

@@ -6,9 +6,9 @@ title: Auto Setup
 Automated setup
 ================
 
-The most classic way of installing an app on an instance is to deploy an empty instance and import modules as the designer user, usually through the UI, the I/O endpoint or using Git pushes/pulls. 
+The most classic way of installing an app on an instance is to deploy an empty instance and import modules as the designer user, usually through the UI, the I/O endpoint or using Git pushes/pulls.
 
-However, there are many contexts that call for mechanisms to install or update a fully-functionning app without ever having to connect to it. 
+However, there are many contexts that call for mechanisms to install or update a fully-functionning app without ever having to connect to it.
 
 This document presents two features that aim at accomplishing just that:
 - licence packaging
@@ -28,7 +28,7 @@ Alternatively you can pass the content of the license key (in either XML, JSON o
 As of version 5.1.6 it is possible to add business modules' ZIP files in the `webapps/ROOT/WEB-INF/modules` folder.
 These ZIP files will be imported **if required** at startup following an import specification JSON/YAML file located at the same place.
 
-The import procedure decides whether importing the specified module is required based on the specified version: 
+The import procedure decides whether importing the specified module is required based on the specified version:
 if the module already exists in the database in a version which is higher or equals to the specified version, then no import is done.
 
 The import specification file must be names `<any thing>-importspec.<json|yaml>` and its format is like:
@@ -135,7 +135,6 @@ E.g. 1: Passing `MODULES_IMPORT_SPEC` to a `docker` CLI command line: `-e MODULE
 E.g. 2: Setting `MODULES_IMPORT_SPEC` in a `docker-compose.yml` file:
 
 ```yaml
-version: "3"
 services:
   simplicite:
     image: registry.simplicite.io/platform:<tag>

docs/documentation/operation/docker.md

@@ -69,7 +69,7 @@ sudo systemctl enable docker
 sudo systemctl start docker
 ```
 
-> **Note**: by default Docker is allowed to change the firewall rules to open exposed ports. 
+> **Note**: by default Docker is allowed to change the firewall rules to open exposed ports.
 > To disable this behavior you need to edit `/usr/lib/systemd/system/docker.service` cartridge file
 > and add `--iptables=false` to the `ExecStart` command.
 
@@ -587,7 +587,7 @@ and thus the container's `8443` port (exposed here using `-p 8443:8443`) is the
 
 #### Add a custom certificate <span id="addcertificate"></span>
 
-If you need to add a custom certificate (e.g. a CA certificate or a database certificate) to the image you must build a derived image from 
+If you need to add a custom certificate (e.g. a CA certificate or a database certificate) to the image you must build a derived image from
 one of our image using a `Dockerfile` like:
 
 For **CentOS** based-images:
@@ -717,7 +717,6 @@ sudo docker login
 Create the following `docker-compose.yml` file:
 
 ```yaml
-version: "3"
 services:
   web:
     image: registry.simplicite.io/platform:<tag>
@@ -748,7 +747,6 @@ sudo docker-compose up [-d]
 > **Note**: if you want to enable SSL you need to add items in the service's ports, environment and volumes sections:
 >
 > ```yaml
-> version: "3"
 > services:
 >   web:
 >     image: registry.simplicite.io/platform:<tag>

docs/documentation/operation/kubernetes.md

@@ -58,7 +58,6 @@ For this basic example we will be using the [Kompose tool](https:installation.md
 Provided the following Docker compose file `docker-compose.yml`:
 
 ```yaml
-version: "3"
 services:
   simplicite:
     image: registry.simplicite.io/platform:latest