add notes for microk8s and helm for Galoy

k8s/install.microk8s.sh

@@ -0,0 +1,99 @@
+#!/bin/bash
+
+# install microk8s and helm on Debian 11 - RaspiBlitz
+
+if [ "$1" = on ]; then
+  sudo adduser --disabled-password --gecos "" k8s
+  echo '/usr/share/doc/fzf/examples/key-bindings.bash' >> ~/.bashrc
+  echo '/usr/share/doc/fzf/examples/completion.bash' >> ~/.bashrc
+
+  sudo usermod -a -G sudo,bitcoin,debian-tor k8s
+
+  sudo su - k8s
+
+  # https://www.server-world.info/en/note?os=Debian_11&p=microk8s&f=1
+
+  sudo apt update
+
+  SSDmount="/mnt/ext"
+  sudo mkdir -p /var/snap
+  sudo mv -f /var/snap ${SSDmount}/
+  sudo ln -s ${SSDmount}/snap /var/snap
+
+  sudo apt install -y snapd
+  sudo snap install microk8s --classic
+
+  echo 'export PATH=/snap/bin:$PATH' >> ~/.bashrc
+  source ~/.bashrc
+
+  sudo usermod -a -G microk8s k8s
+  sudo chown -f -R k8s ~/.kube
+  newgrp microk8s
+
+  # microk8s.inspect
+  # troubleshooting steps on Debian
+  # https://microk8s.io/docs/troubleshooting
+  sudo iptables -P FORWARD ACCEPT
+  sudo apt-get install -y iptables-persistent
+  echo '{
+      "insecure-registries" : ["localhost:32000"]
+  }
+  ' | sudo tee -a /etc/docker/daemon.json
+
+  sudo ufw allow in on vxlan.calico && sudo ufw allow out on vxlan.calico
+  sudo ufw allow in on cali+ && sudo ufw allow out on cali+
+  sudo ufw allow 16443 comment "microk8s"
+  sudo ufw allow 10443 comment "kubernetes-dashboard"
+
+  SSDmount="/mnt/ext"
+  ## part of the docker install script
+  # echo "### 3) Symlink the working directory to the SSD"
+  sudo systemctl stop docker
+  sudo systemctl stop docker.socket
+  sudo mkdir -p /var/lib/docker
+  sudo mv -f /var/lib/docker ${SSDmount}/
+  sudo ln -s ${SSDmount}/docker /var/lib/docker
+  sudo systemctl start docker
+  sudo systemctl start docker.socket
+
+  microk8s stop
+
+  ## symlink the microk8s containerd and default-storage to the SSD
+  SSDmount="/mnt/ext"
+
+  sudo mkdir -p ${SSDmount}/microk8s/common/var/lib/containerd
+  sudo mkdir -p ${SSDmount}/microk8s/common/run/containerd
+
+  echo "--config \${SNAP_DATA}/args/containerd.toml
+--root ${SSDmount}/microk8s/common/var/lib/containerd
+--state ${SSDmount}/microk8s/common/run/containerd
+--address \${SNAP_COMMON}/run/containerd.sock
+" | sudo tee /var/snap/microk8s/current/args/containerd
+
+  microk8s start
+
+  microk8s enable helm
+  microk8s enable dns
+  microk8s enable dashboard
+  microk8s enable storage
+  microk8s enable ingress
+  microk8s enable registry
+
+  # make the config permanent
+  microk8s config > ~/.kube/config
+  sudo chmod 0600 /home/k8s/.kube/config
+
+  # helm
+  sudo snap install helm --classic
+fi
+
+if [ "$1" = off ]; then
+
+ helm uninstall galoy
+ sudo snap remove helm
+ microk8s reset [--destroy-storage]
+ microk8s stop
+ sudo snap remove microk8s
+ sudo apt remove -y snapd --purge
+
+fi