Cloud/Shahed/AB

SSH

ssh -qt shahed@shahed_ab.local bash

cat <<'EXE' | sudo bash
free -th && echo && systemd-analyze && echo
df -h    && echo && lsblk && echo
swapon --show
EXE

WOL

cat <<'EXE'| sudo bash
apt-get update;echo
apt list -a --upgradable;echo
apt-get install -y wakeonlan;echo
EXE

WOL » MAC » Find

WOL_HOST='shahed-an.local'
ping -q -c5 "${WOL_HOST}" >/dev/null
WOL_IPV4="$(getent hosts "${WOL_HOST}"|awk '{print $1}')"
WOL_MACA="$(arp -n "${WOL_IPV4}"|awk 'NR==2 {print $3}')"
printf '\n%s » %s » %s\n' "${WOL_HOST}" "${WOL_IPV4}" "${WOL_MACA}"

WOL » Shahed » AE

wakeonlan 8c:c6:81:94:70:91

WOL » Shahed » AN

wakeonlan 84:47:09:3c:3e:0a
wakeonlan 84:47:09:3c:3e:09

Cloudflare » VIRT

cat << INI | sudo tee /etc/systemd/system/warp0.service >/dev/null
[Unit]
Description=Cloudflared WARP Routing Virtual Interface
After=network.target
[Service]
Type=oneshot
ExecStart=/usr/sbin/ip link add warp0 type dummy
ExecStartPost=/usr/sbin/ip addr add 10.20.40.2/32 dev warp0
ExecStartPost=/usr/sbin/ip link set warp0 up
ExecStop=/usr/sbin/ip link delete warp0
RemainAfterExit=yes
[Install]
WantedBy=multi-user.target
INI

---

cat << EXE | sudo bash
systemctl daemon-reload
systemctl enable --now warp0.service
systemctl status       warp0.service
EXE

ip a

Cloudflare » Argo » Tunnel

wget -cq https://github.com/cloudflare/cloudflared/releases/latest/download/cloudflared-linux-amd64.deb -P ${HOME}/Downloads
sudo dpkg -i ${HOME}/Downloads/cloudflared-linux-amd64.deb; sudo apt install -f
      rm -rf ${HOME}/Downloads/cloudflared-linux-amd64.deb

---

cat <<'SYS' | sudo tee -a /etc/sysctl.conf >/dev/null

###################################################################
# Cloudflared Tunnel Private Network Config
# This config added by Chorke Academia, Inc
# ICMP Group ID Range 0 to 10,000 Users
net.ipv4.ping_group_range = 0 10000

# 208 KiB Default RX Buffer
net.core.rmem_default=212992

# 208 KiB Default TX Buffer
net.core.wmem_default=212992

# 8 MB Maximum RX Buffer
net.core.rmem_max=8388608

# 8 MB Maximum TX Buffer
net.core.wmem_max=8388608

SYS

sudo sysctl -p

---

Skipped » Find More » 👈

LB » HAProxy » Install & Configure

Skipped » Find More » 👈

---

sudo ufw status numbered
sudo iptables -S

cat << EXE | sudo bash
ufw       allow 80/tcp
ufw       allow 443/tcp
ufw       allow OpenSSH
ufw       allow 8443/tcp
ufw       allow in  on lxdbr0
ufw route allow in  on lxdbr0
ufw route allow out on lxdbr0
EXE

sudo ufw status numbered
sudo iptables -S

LB » HAProxy » Frontend » HTTP Config

cat <<'CFG'| sudo tee /etc/haproxy/proxy-configs/shahed.biz-http-all.cfg >/dev/null

# ##############################################################################
# http frontend config for *.chorke.org, *.chorke.com, *.shahed.biz
# this config added by chorke academia, inc

frontend           fnt_shahed_biz
   bind            *:80
   mode            http

   acl             host-is-k8s-ab-shahed-shahed-biz     hdr(host) -i k8s.ab.shahed.shahed.biz

   use_backend     bck_shahed_biz_shahed_ab_k8s         if host-is-k8s-ab-shahed-shahed-biz
   default_backend bck_shahed_biz_shahed_ab_k8s

backend            bck_shahed_biz_shahed_ab_k8s
   server          shahed_ab_k8s 192.168.49.2:80
   mode            http
CFG
sudo ln -s /etc/haproxy/proxy-configs/shahed.biz-http-all.cfg /etc/haproxy/proxy-enabled/

LB » HAProxy » Frontend » Kube API Config

cat <<'CFG'| sudo tee /etc/haproxy/proxy-configs/shahed.biz-tcp-kube.cfg >/dev/null

# ##############################################################################
# tcp frontend config for 10.20.40.2:8443
# this config added by chorke academia, inc

frontend           fnt_shahed_biz_shahed_ab
   bind            *:8443
   mode            tcp
   option          tcplog
   option          dontlognull
   default_backend bck_shahed_biz_shahed_ab

backend            bck_shahed_biz_shahed_ab
   server          shahed_ab_k8s 192.168.49.2:8443
   mode            tcp
CFG
sudo ln -s /etc/haproxy/proxy-configs/shahed.biz-tcp-kube.cfg /etc/haproxy/proxy-enabled/

---

vim /etc/haproxy/proxy-scripts/reconfig
    /etc/haproxy/proxy-scripts/reconfig

---

systemctl disable --now minikube.service
vim /etc/systemd/system/minikube.service
# append --apiserver-ips=10.20.40.1 with ExecStart
systemctl enable --now minikube.service

---

ssh -qt shahed@shahed_ab.local bash
sudo -i -u minikube

---

# run this script on the minikube host. copy the generated output and
# execute it on your local machine's terminal to enable monitoring of
# the minikube cluster.

cat << LOG
$(cat <<'YML'| tee ~/.kube/shahed-ab-kubeconfig.yaml >/dev/null
apiVersion: v1
kind: Config
clusters:
- name: minikube
  cluster:
    server: https://10.20.40.2:8443
    certificate-authority: /home/system/minikube/.minikube/ca.crt

contexts:
- name: shahed-ab
  context:
    cluster: minikube
    namespace: default
    user: minikube

users:
- name: minikube
  user:
    client-certificate: /home/system/minikube/.minikube/profiles/minikube/client.crt
    client-key: /home/system/minikube/.minikube/profiles/minikube/client.key

current-context: shahed-ab
YML
)

cat <<'YML'| tee ~/.kube/shahed-ab-kubeconfig.yaml >/dev/null
$(export KUBECONFIG=${HOME}/.kube/shahed-ab-kubeconfig.yaml;\
kubectl config view --flatten;\
rm ${KUBECONFIG};\
)
YML

chmod 600 ~/.kube/shahed-ab-kubeconfig.yaml
  ls -alh ~/.kube/

export KUBECONFIG=~/.kube/shahed-ab-kubeconfig.yaml
kubectl config get-contexts
kubectl get    namespace
$(echo -n)
LOG

References

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