Update to olgV7 Docker image and bump ISO version to v0.0.8

- Update container image to mjhnetexp/ucentral-client:olgV6-test
  (references SDK PR #6 with VyOS integration)
- Document VyOS minimal configuration requirements for Cloud SDK mode
- Add REST API endpoint setup with explanation of uCentral /config-file usage

CHANGELOG.md

@@ -3,12 +3,6 @@ All notable changes to this project will be documented in this file.
 
 NOTE: the project follows [Semantic Versioning](http://semver.org/).
 
-## v0.0.3 - March 11th, 2026
-
-- Updated ucentral-client Docker image to olgV8
-- Includes updated ucentral-schema from ra_proposal branch (SDK commit 6491570)
-- VyOS integration improvements and schema enhancements
-
 ## v0.0.2 - February 12th, 2026
 
 - Add Ucentral support and documentation

README.md

@@ -38,7 +38,34 @@ At this time you can either load a default configuration and use VyOS in a "stan
 
 ### OpenWifi Cloud SDK mode
 
-### Setup of Ucentral-Client Container
+#### VyOS Minimal Configuration
+
+Before setting up the uCentral client, configure VyOS with minimal settings required for cloud management:
+
+```
+configure
+
+# Enable DHCP on WAN interface (br0)
+set interfaces bridge br0 address dhcp
+
+# Enable HTTPS API service
+set service https
+
+# Enable REST API endpoint (required for uCentral configuration management)
+# The REST endpoint allows the uCentral client to push configurations via API
+set service https api rest
+
+# Set API key (use a secure key in production)
+set service https api keys id ucentral key 'MY-HTTPS-API-PLAINTEXT-KEY'
+
+commit
+save
+exit
+```
+
+**Note on REST API**: The `rest` endpoint is required because uCentral uses the `/config-file` API to push complete configurations in a single transaction. Without REST enabled, the API will reject configuration requests. The API key set here must match the `key` value in `/etc/ucentral/vyos-info.json` inside the ucentral-olg container.
+
+#### Setup of Ucentral-Client Container
 
 - SSH to the OLG Ubuntu host
 - Run `sudo /opt/staging_scripts/ucentral-setup.sh setup` to setup the ucentral-client container

grub.cfg

@@ -4,7 +4,7 @@ insmod png
 loadfont unicode
 gfxpayload text
 
-ISO_VERSION="v0.0.3"
+ISO_VERSION="v0.0.8"
 
 menuentry "Install Open LAN Gateway (ISO $ISO_VERSION)" {
 	linux	/casper/vmlinuz autoinstall fsck.mode=skip   ds=nocloud\;s=/cdrom/nocloud/ ipv6.disable=1 console=ttyS0,115200n8 console=tty0 network-config=disabled ---

iso-files/ucentral-setup.sh

@@ -5,7 +5,7 @@ ACTION="$1"
 
 # ================= CONFIG =================
 CONTAINER="ucentral-olg"
-IMAGE="mjhnetexp/ucentral-client:olgV8"
+IMAGE="mjhnetexp/ucentral-client:olgV7"
 
 BRIDGE="br-wan"