Node Red on PFC200-8204 SD card

[RBSI]

Hello Everyone,

I am trying to get node red installed on Wago-PFC200 8204 but i am getting an error while executing “docker pull nodered/node-red/” command about having no space on my device.

is there any way i can pull the docker image into my sd-card (or basically change the directory where it is extracting the image)?

info on devicer:
Filesystem Size Used Available Use% Mounted on
/dev/root 14.5G 353.1M 13.4G 3% /
devtmpfs 119.0M 56.0K 119.0M 0% /dev
none 119.5M 72.0K 119.5M 0% /tmp
none 119.5M 164.0K 119.4M 0% /media
none 4.0M 188.0K 3.8M 5% /var/log
none 119.5M 148.0K 119.4M 0% /var/run
none 119.5M 0 119.5M 0% /var/lock
none 119.5M 0 119.5M 0% /var/tmp
none 119.5M 0 119.5M 0% /sys/fs/cgroup
tmpfs 119.5M 68.0K 119.5M 0% /run
/dev/mmcblk0p1 16.0M 2.2M 13.8M 14% /boot/loader
none 119.5M 148.0K 119.4M 0% /var/run/netns
none 119.5M 164.0K 119.4M 0% /media/docker

I am using SD card as mass storage device and a bootable device as well. I successfully installed docker via using the CODESYS web page however i am not sure whether the docker is installed on the internal memory or not.

Goal is to get node-red installed on the Sd-card.

Please let me know if you have any idea to solve this. Thank you very much

[WagoKurt]

Hello, when you created the SD image, did you select to use the full card size?

Please refer to the PFC100 SD Card boot how-to for more details.

How To: Using Docker on the PFC100 SD Card

[WagoGrim]

I did not test it but please also look at default storage path “data-root” in /etc/docker/deamon.json.
It could be pointed to the SD card.

[RBSI]

Hello thank you very much for your response. I am pretty sure i did selected the full card size for the image, because before that i was unable to even get the docker installed on the PFC via CODESYS as the Wago PFC has very low flash memory. Here is some information about my installed docker.

[quenorha]

Never try this from a bootable SD card but have you tried changing the Docker root dir as suggests @WagoGrim ?
You should try creating a docker folder in /dev/root, then use it in the daemon.json file.
Restart the docker daemon

/etc/init.d/dockerd restart

Check if this ok :

docker system info --format '{{.DockerRootDir}}'

Then you will have to download again your images and so on.

[RBSI]

Hello i did change my daemon.json file and pointing towards my SD card however i am still stuck at the same error. Here is details of my daemon.json file.

[RBSI]

Hello, somehow by making change on the Daemon.json file, i was able to install node-red but however when i am launching wago PFC ip:1880 on web browser, it still does not connect.

I tried to run docker ps command and yes this is the information i have

root@PFC200-41E863:~ docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
6d4c710bd721 nodered/node-red “npm --no-update-not…” 5 minutes ago Up 3 minutes (unhealthy) 0.0.0.0:1880->1880/tcp mynodered2
142963f0be57 nodered/node-red “npm --no-update-not…” 42 minutes ago Up 12 minutes (unhealthy) node-red

still not able to open node-red on the web-browser.

[WagoKurt]

Hello, it appears you have two NodeRED containers running. I would stop them both using these commands;

docker rm -f 6d
docker rm -f 14
docker volume prune

then create a new container with the command;
docker run --restart unless-stopped -d --name node-red --network=host -v node_red_user_data:/data nodered/node-red

[RBSI]

Thank you very much, i can access the node-red on 1880 port now. I still have a question that the in the command you mentioned above “–restart unless-stopped”, will it start nodered automatically on the system startup or i have to manually enable the container it is in via ssh root@IP ?

Thanks

[WagoKurt]

Great to hear! --restart unless-stopped will allow you to stop the container manually if you choose but will otherwise automatically start on power up. To manually stop this container, use the command:
docker stop node-red
and then to start it again use
docker start node-red