rasberry pi 4 cluster setup

How to setup SMB/CIFS on PIs to access my NAS

install smb client on all pis in your cluster:
$ sudo apt install samba samba-common-bin smbclient cifs-utils

create credentials file for your NAS access locally on all of your pis
$ vi /home/pi/.smbcredentials
  username=yourusername
  password=yourpassword

create local directory on pis where you will mount your remote NAS mounts
$ sudo mkdir /media/Movies/
$ sudo mkdir /media/Cartoons/
$ sudo mkdir /media/Music/
$ sudo mkdir /media/Pictures/
$ sudo mkdir /media/Storage/
$ sudo mkdir /media/TVshows/

Edit your /etc/fstab file and add NAS remove mounts. Notice \040 in the "TV Shows" which is for <space> character to work.
$ sudo vi /etc/fstab
//NAS.IP/Movies /media/Movies/ cifs credentials=/home/pi/.smbcredentials 0 0
//NAS.IP/Cartoons /media/Cartoons/ cifs credentials=/home/pi/.smbcredentials 0 0
//NAS.IP/Music /media/Music/ cifs credentials=/home/pi/.smbcredentials 0 0
//NAS.IP/Pictures /media/Pictures/ cifs credentials=/home/pi/.smbcredentials 0 0
//NAS.IP/Storage /media/Storage/ cifs credentials=/home/pi/.smbcredentials 0 0
//NAS.IP/TV\040Shows /media/TVshows/ cifs credentials=/home/pi/.smbcredentials 0 0

Now mount all mountpoints in your fstab by running this command:
$ sudo mount -a

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How to setup ntpdate on all pis to ensure time is synced:
$ for host in node1-pi node2-pi node3-pi node4-pi; do ssh pi@$host sudo apt install ntpdate -y; done

How to change tocken expiration for kubernetes-dashboard deployment:
edit kubernetes-dashboard Deployment file in terminal (kubectl edit deployment kubernetes-dashboard -n kubernetes-dashboard) or in UI and add the following args to your Container:
- --token-ttl=43200
Above setting will change your Dashboard timeout for 12 hours

How to list your PODs and access them in the terminal:
$ kubectl get pods -n <your namespace>
NAME        READY   STATUS   RESTARTS   AGE
apple-app   1/1     Running    0          56s
$ kubectl -n <your namespace> exec -it apple-app -- /bin/bash
how to access if you have multiple containers within one pod:
$ kubectl -n <your namespace> exec -it apple-app -c <container name> -- /bin/bash