Merge branch 'feature-237' of https://github.com/cybnity/foundation i…

…nto feature-237

implementations-line/systems/modules/dev-env/README.md

@@ -26,7 +26,6 @@ Several types of clusters can be build over command lines executions:
 |:--|:--|:--|:--|
 |RKE2 cluster|RKE2|- RAM: 8GB+<br>- CPU: 4+ cores|RKE2 Kubernetes platform.<br>Supported [Linux distributions](https://www.suse.com/suse-rke2/support-matrix/all-supported-versions/rke2-v1-30/)|
 |Linux|Ubuntu LTS Linux server| |Operating System of single-node|
-|Physical server| | |[CYDEL01-CYBDEV01 documentation](../../technical-infrastructure/CYDEL01-cybdev01.md)|
 
 ### CYDEL02
 |System / Solution|Software Layer|Hardware Layer|Documentations|
@@ -55,15 +54,9 @@ One sub-directory is defined per CYBNITY application deployable as a Kubernetes
 Current support environment is built over a set of physical resources.
 
 ## CYDEL01
-See [CYDEL01-CYBDEV01 documentation](../../technical-infrastructure/CYDEL01-cybdev01.md).
-
-### Hardware resources sizing
-| | NEED | CURRENT | SIZING STATUS |
-|:--|:--:|:--:|:--:|
-| CPU CORES | 16 | 28 | :white_check_mark: |
-| RAM | 128GB | 128GB | :white_check_mark: |
-| STORAGE SIZE | 500GB | 3.5TB | :white_check_mark: |
-| NETWORK SPEED| 10Gpbs |1Gbps + 10Gbps + 10Gbps| :white_check_mark: |
-
+Infrastructure implemented resources:
+- DEV Cluster:
+  - [CYDEL01-CYBDEV01 documentation](../../technical-infrastructure/CYDEL01-cybdev01.md)
+  - [CYDEL01-CYBDEV02 documentation](../../technical-infrastructure/CYDEL01-cybdev02.md)
 #
 [Back To Home](../README.md)

implementations-line/systems/technical-infrastructure/CYDEL01-cybdev01.md

@@ -29,7 +29,7 @@ Current prepared server configuration is:
 - hostname: __cybdev01__
 
 # VIRTUALIZATION LAYER
-RKE2 virtualization system is implemented as Kubernetes layer hosting the CYBNTY staging versions deployed into a __Dev cluster__.
+RKE2 virtualization system is implemented as Kubernetes layer hosting the CYBNITY staging versions deployed into a __Dev cluster__.
 
 ## Helm
 - Install Helm stable version via command:

implementations-line/systems/technical-infrastructure/CYDEL01-cybsup01.md

@@ -27,7 +27,7 @@ Current prepared server configuration is:
 - hostname: __cybsup01__
 
 # VIRTUALIZATION LAYER
-RKE2 virtualization system is implemented as Kubernetes layer hosting the CYBNTY support applications deployed into a __Support cluster__.
+RKE2 virtualization system is implemented as Kubernetes layer hosting the CYBNITY support applications deployed into a __Support cluster__.
 
 ## Helm
 - Install Helm stable version via command:
@@ -55,7 +55,7 @@ RKE2 virtualization system is implemented as Kubernetes layer hosting the CYBNTY
 ```
 
 ### Private Certificates
-Get new CYBNITY domain certificates bundles (including CA Root, intermediates crt and key files) usable for SUPPORT cluster (sup.cybnity.tech as Subject Alternative Name).
+Get new CYBNITY domain certificates bundle (including CA Root, intermediates crt and key files) usable for SUPPORT cluster (sup.cybnity.tech as Subject Alternative Name).
 
 ### Root CA
 From a wilcard signed certificate (e.g including cybnity.tech, and *.cybnity.tech sub-domains as Subject Alternative Name extensions):
@@ -80,11 +80,11 @@ If previous RKE2 version need to be uninstalled before defining the CA root, exe
 See [RKE2 security certificates](https://docs.rke2.io/security/certificates) documentation for help.
 - Create `/var/lib/rancher/rke2/server/tls` folder and copy into:
   - custom domain certificate (e.g STAR_cybnity_tech.crt defining the SSL certificate for domain and/or sub-domains) as `root-ca.pem` renamed file
-  - private key of the custom domain (e.g private.key file of custom domain SSL certificate) as `root-ca.key` renamed file
+  - private key of the custom domain (e.g private.key file of custom domain SSL certificate) as `root-ca.key` renamed file.
 - Generate custom CA certs and keys via command `curl -sL https://github.com/k3s-io/k3s/raw/master/contrib/util/generate-custom-ca-certs.sh | PRODUCT=rke2 bash -` and check text shown regarding the database updates applied with success (e.g new entries made) about CA certificate generation completed.
-  - As recommended by command result, store in a secure area the root and intermediate certificate files (.pem, .crt, .key) and remove them from __/var/lib/rancher/rke2/server/tls__ folder
+  - As recommended by command result, store in a secure area the root and intermediate certificate files (.pem, .crt, .key) and remove them from __/var/lib/rancher/rke2/server/tls__ folder.
 - Create folder `mkdir -p /opt/rke2/server/tls`
-  - Copy current service-account signing key considerated like current via `cp /var/lib/rancher/rke2/server/tls/service.key /opt/rke2/server/tls`, to avoid token lost during future custom CA certificate rotation
+  - Copy current service-account signing key considerated like current via `cp /var/lib/rancher/rke2/server/tls/service.key /opt/rke2/server/tls`, to avoid token lost during future custom CA certificate rotation.
 
 ### RKE2 Installation
 - As root user, set environment variable to use during RKE2 script installation execution via command:

implementations-line/systems/technical-infrastructure/CYDEL01-ubuntu-installation.md

@@ -75,16 +75,18 @@ After installation, storage layout and filesystem layout shall be shown (via `ls
   - reload the changes via command `sudo sysctl --system`
 
 - Server hostname change
-  - change default server's hostname defined during the standard SUSE installation by another one according to the server role (e.g "cybsup01" about CYBNITY Support's server 1) via command line `sudo hostnamectl set-hostname cybsup01`
+  - change default server's hostname defined during the standard Ubuntu installation by another one according to the server role (e.g "cybsup01" about CYBNITY Support's server 1) via command line `sudo hostnamectl set-hostname cybsup01`
 
   - to make change without closing the terminal via command `exec bash`
 
-- Update of /etc/hosts file check (e.g DHCP mode from network system) or static ip address
+- Update of /etc/hosts file check (e.g DHCP mode from network system) or static ip address.
   Ensure your system can resolve its hostname by updating the /etc/hosts file with the IP address and the new hostname via command:
 ```
   sudo vi /etc/hosts
 
   # Add a line: server-desired-hostname
+  # Local K8s application extended hostnames
+  192.168.30.12 cybdev02.cybnity.tech
 ```
 
 - Ubuntu version update and upgrade via command line:
@@ -110,8 +112,7 @@ After installation, storage layout and filesystem layout shall be shown (via `ls
   - show configuration of detected ethernet controllers via command `sudo hwinfo --netcard`
 
 ### Intel 10-Gigabit X540-AT2 card drivers
-When NIC not detected or usable, install when network card were not detected/configured during the origin Linux installation.
-
+When NIC not detected, usable or not configured during the origin Linux installation, install drivers:
 - Download of drivers files via command lines:
 ```
    curl -O https://downloadmirror.intel.com/832293/ixgbe-5.21.5.tar.gz
@@ -158,7 +159,7 @@ None configuration is existing about the additional network card (e.g Intel 10-G
           send-hostname: false
           hostname: cybsup01_mgt
 
-      # set 100Gbps NIC cards in DHCP mode as operation server endpoints
+      # set 10Gbps NIC cards in DHCP mode as operation server endpoints
       enp11s0f0:
         dhcp4: true
         optional: true