Podman Guide
Parangkat lunak
Buku pituduh
Creating a Node-RED container
This guide covers the installation of a Node-RED container on Pixsys WebPanel “WP” and TouchController “TC” series.
Displaying the Node-RED dashboard on the screen is possible only on WP – WebPanel devices and on TC – TouchController panels with the “WebVisu” license only. On TouchController – TC panels with a “TargetVisu” or “TargetVisu + WebVisu” license, it is not possible to display the Node-RED dashboard.
Lebet
Access the device in configuration mode by holding down the STOP button that appears at startup.
Access the configuration console by entering the following credentials:
Ngaran pamaké: pamaké
Sandi: 123456
If the device IP is known, it is also possible, and recommended, to access the configuration console from a browser on the user’s PC by accessing the address: https://device-IP-.9443/ and using the above credentials.
Creating the folder for Node-RED
The container that is going to be activated requires a space to store user data.
For this purpose, in the devices, there is a folder /data/user.
Using WinScp or another sFTP access software, create a folder node-red within the path /data/user, following the steps below:
- Open WinSCP, connect to the device using the IP and credentials already used to access the configuration console, and choose /data/user
- From the Menu “New” select the option “Directory…”.
- Create the folder node-red, enabling all “R/W/X” permits:
The same process is also possible by SSH access and using the following prompts:
mkdir -p /data/user/node-red
chmod a+rwx /data/user/node-red
Download of the container
Access “Podman containers” on the Menu bar:
Select the option“Download new image” in the menu to the right with the three-dot icon
Select the search area “docker.io“
Type “node-red” in “Milarian pikeun”
Select official image “docker.io/nodered/node-red”:
Then press “Download” and the download of the image will start.
This is a several hundred Mb file; depending on the internet connection, it may take several minutes.
When the download is complete, it will be possible to view the image on the device:
Container creation
In the “Containers” Tab, press the “Create container” button. A menu will open to configure the container you want to create.
Fill in the “Name” field with a name of your choice, replacing the automatically generated random one.
Tab Details:
From the “Image” box, choose the downloaded image as described in the previous chapter:
Configure “Memory limit” to 128 or 256 MB.
“Restart Policy” set to “Always” sets the container to start automatically and be restarted even in the event of a user-commanded shutdown.
Tab Integration:
Configure port mapping to expose port 1880 in both TCP and UDP, and map the Container Path /data, visible from node-red, in Host Path /data/user/node-red
Tab Health check:
This Tab defines the control checks on the correct operation of the container and how it will behave in case of an error.
The image below shows the default parameters:
Dina ieu stage, press “Create and run” and wait for the creation of the container.
Testing the container
When the container creation procedure is finished, the “Containers” list will display the new running container (State: Running):
Open a browser on PC and go to the page: http://device-IP.1880
Creating a dashboard
Dashboard allows Node-RED to present/publish a dynamic web kaca.
Install “node-red-dashboard”, opening the Menu Manage palette:
Milarian pikeun node-red-dashboard within the tab Install
Wait for the installation to be completed, and then log in to the console and import the Flow entered at the end of the guide from the menu Import:
**This is example code with no real purpose.
NB for the use of Node-RED and the Dashboard, please refer to the documentation available online.
Once the code is imported, this will provide a project like the following one:
Pencét 
to compile and start the project.
Opening page http://device-IP.1880/ui, the result will look like the following:
Configuring the panel to display the dashboard
At this point, for panels that allow it, access the menu WP Settings, then Main application settings, and enter URL http://localhost.1880/ui
Use the term localhost or IP 127.0.0.1 to make the browser access the device itself, regardless of its actual IP.
Upon reboot, the device will show the full-screen Node-RED Dashboard.
Exampaliran le
The following code is the text to be imported as a Flow in Node-RED:
[{
“id”: “1e6b97b5.687fd8”,
“type”: “tab”,
“label”: “Dashboard”,
“disabled”: false,
“info”: “”
},
{
“id”: “ 7c8 f 99d9.196b98”,
“type”: “ui_text”,
“z”: “1e6b97b5.687fd8”,
“group”: “dd4567b9.6a4c18”,
“order”: 1,
“width”: “12”,
“height”: “1”,
“name”: “Title”,
“label”: “Dashboard – Random Data Display”,
“format”: “{{msg.payload}}”,
“layout”: “col-center”,
“x”: 330,
“y”: 120,
“wires”: [] },
{
“id”: “2e4a56f8.cfa23a”,
“type”: “ui_gauge”,
“z”: “1e6b97b5.687fd8”,
“name”: “Random Gauge”,
“group”: “dd4567b9.6a4c18”,
“order”: 2,
“width”: “6”,
“height”: “6”,
“gtype”: “gage”,
“title”: “Random Value”,
“label”: “ %”,
“format”: “{{value}}”,
"min": "0",
"max": "100",
“colors”: [“#00b500”,”#e6e600”,”#ca3838”],
“seg1”: “30”,
“seg2”: “70”,
“x”: 320,
“y”: 240,
“wires”: [] },
{
“id”: “3b9ddefd.32b9d”,
“type”: “ui_chart”,
“z”: “1e6b97b5.687fd8”,
“name”: “Time-based Chart”,
“group”: “dd4567b9.6a4c18”,
“order”: 3,
“width”: “6”,
“height”: “6”,
“label”: “Random Time Chart”,
“char tType”: “line”,
“legend”: “false”,
“xformat”: “HH:mm: ss”,
“interpolate”: “linear”,
“nodata”: “”,
“ymin”: “0”,
“ymax”: “100”,
“removeOlder”: 1,
“removeOlderPoints”: “”,
“removeOlderUnit”: “3600”,
“cutout”: 0,
“useOneColor”: false,
“colors”: [“#00b500”,”#e6e600”,”#ca3838”],
“outputs”: 1,
“useDifferentColor”: false,
“x”: 600,
“y”: 240,
“wires”: [] },
{
“id”: “ 74b1ae f 8.e7e0d8”,
“type”: “function”,
“z”: “1e6b97b5.687fd8”,
“name”: “Generate Random Data”,
“func”: “msg.payload = Math.floor(Math.random() * 100);\nreturn msg;”,
“outputs”: 1,
“noerr”: 0,
“initialize”: “”,
“finalize”: “”,
“libs”: [],
“x”: 130,
“y”: 240,
“wires”: [
[
“2e4a56f8.cfa23a”,
“3b9ddefd.32b9d”
] ] },
{
“id”: “e0e9bd3c.a8ae2”,
“type”: “inject”,
“z”: “1e6b97b5.687fd8”,
“name”: “”,
“props”: [
{
“p”: “payload”
}
],
“repeat”: “1”,
“crontab”: “”,
“once”: true,
“onceDelay”: 0.1,
“topic”: “”,
“payloadType”: “date”,
“x”: 130,
“y”: 160,
“wires”: [
[
“74b1ae f 8.e7e0d8”
] ] },
{
“id”: “dd4567b9.6a4c18”,
“type”: “ui_group”,
“z”: “”,
“name”: “Random Data”,
“tab”: “fe9b4293.8df8e”,
“order”: 1,
“disp”: true,
“width”: “12”,
“collapse”: false
},
{
“id”: “fe9b4293.8df8e”,
“type”: “ui_tab”,
“z”: “”,
“name”: “Main Dashboard”,
“icon”: “dashboard”,
“order”: 1,
“disabled”: false,
“hidden”: false
}
]
Catetan / Apdet
PIXSYS srl
www.pixsys.net
sales@pixsys.net – support@pixsys.net
online assistance: http://forum.pixsys.net
via Po, 16 I-30030
Mellaredo di Pianiga, VENEZIA (IT)
Telepon +39 041 5190518
200525
Dokumén / Sumberdaya
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