updated post

posts/2021-08-09_servers_K3s on Odroid MC1s, a Guide.md

@@ -45,7 +45,7 @@ network:
 
 Also set timezone if you want.
 
-``` bash
+```shell
 sudo timedatectl set-timezone Australia/Adelaide
 ```
 
@@ -64,7 +64,7 @@ We must rebuild kernel with updated options so that cgroup_pids is enabled. Hard
 
 note that the following tools are required for the build: bison, flex, libssl-dev, and bc
 
-``` bash
+```shell
 apt install bison flex libssl-dev bc -y
 ```
 
@@ -72,8 +72,7 @@ apt install bison flex libssl-dev bc -y
 
 Run the following on all nodes:
 
-``` bash
-
+```shell
   iptables -F \
   && update-alternatives --set iptables /usr/sbin/iptables-legacy \
   && update-alternatives --set ip6tables /usr/sbin/ip6tables-legacy \
@@ -93,7 +92,7 @@ ufw disable
 
 Then run the following only on the master node:
 
-``` bash
+```shell
   # for master
   curl -sfL https://get.k3s.io | K3S_KUBECONFIG_MODE="644" sh -s - --docker
 
@@ -107,7 +106,7 @@ cat /var/lib/rancher/k3s/server/node-token
 
 Then run the following on the worker nodes, updating the command for each:
 
-``` bash
+```shell
   # for workers
   # Fill this out ...
   curl -sfL http://get.k3s.io | K3S_URL=https://<master_IP>:6443 K3S_TOKEN=<join_token> K3S_NODE_NAME="odroid-mc1-X" sh -s - --docker
@@ -117,7 +116,7 @@ systemctl status k3s-agent
 
 And thus you should be done, check the master node to see:
 
-``` bash
+```shell
   # Check node was added on master
   kubectl get nodes
 ```
@@ -186,7 +185,7 @@ ansible_python_interpreter=/usr/bin/python3
 
 Then the following commands:
 
-``` bash
+```shell
   sudo iptables -F \
   && sudo update-alternatives --set iptables /usr/sbin/iptables-legacy \
   && sudo update-alternatives --set ip6tables /usr/sbin/ip6tables-legacy \
@@ -197,13 +196,13 @@ useful command formatted from step 2.2.1 of reference material [here](https://le
 
 Then the following on the master node:
 
-``` bash
+```shell
 curl -sfL https://get.k3s.io | K3S_KUBECONFIG_MODE="644" sh -s -
 ```
 
 Then on the master node grab its node token
 
-``` bash
+```shell
 sudo cat /var/lib/rancher/k3s/server/node-token
 ```
 
@@ -216,7 +215,7 @@ YOURTOKEN = token from above
 
 servername = unique name for node (I use hostname)
 
-``` bash
+```shell
   curl -sfL https://get.k3s.io | K3S_TOKEN="YOURTOKEN" K3S_URL="https://[your server]:6443" K3S_NODE_NAME="servername" sh -z
 
   # I used