updates

kube-setup.sh

@@ -1,35 +1,64 @@
 #!/bin/bash
 #
-# verified on Fedora 31 WS
+# verified on Fedora 31 and Ubuntu LTS 20.04
+
+echo this script works on Fedora 31 and Ubuntu 20.04
+echo it does NOT currently work on Fedora 32
+echo it requires the machine where you run it to have 6GB of RAM or more
+echo press Enter to continue
+read
+
+# setting MYOS variable
+MYOS=$(hostnamectl | awk '/Operating/ { print $3 }')
+OSVERSION=$(hostnamectl | awk '/Operating/ { print $4 }')
+
 egrep '^flags.*(vmx|svm)' /proc/cpuinfo || (echo enable CPU virtualization support and try again && exit 9)
 
-dnf clean all
+# debug MYOS variable
-dnf -y upgrade
+echo MYOS is set to $MYOS
 
-# install KVM software
+#### Fedora config
-dnf install @virtualization -y
+if [ $MYOS = "Fedora" ]
-systemctl enable --now libvirtd
+then
+	#if [ $OSVERSION = 32 ]
+	#then
+	#	echo Fedora 32 is not currently supported
+	#	exit 9
+	#fi
+	
+	sudo dnf clean all
+	sudo dnf -y upgrade
+
+	# install KVM software
+	sudo dnf install @virtualization -y
+	sudo systemctl enable --now libvirtd
+	sudo usermod -aG libvirt `id -un`
+fi
+
+### Ubuntu config
+if [ $MYOS = "Ubuntu" ]
+then
+	sudo apt-get update -y 
+	sudo apt-get install -y apt-transport-https curl
+	sudo apt-get upgrade -y
+	sudo apt-get install -y qemu-kvm libvirt-daemon-system libvirt-clients bridge-utils
+
+	sudo adduser `id -un` libvirt
+	sudo adduser `id -un` kvm
+fi
 
 # install kubectl
-echo installing kubectl
+curl -LO https://storage.googleapis.com/kubernetes-release/release/`curl -s https://storage.googleapis.com/kubernetes-release/release/stable.txt`/bin/linux/amd64/kubectl
-cat <<EOF > /etc/yum.repos.d/kubernetes.repo
+chmod +x ./kubectl
-[kubernetes]
+sudo mv ./kubectl /usr/local/bin/kubectl
-name=Kubernetes
-baseurl=https://packages.cloud.google.com/yum/repos/kubernetes-el7-x86_64
-enabled=1
-gpgcheck=1
-repo_gpgcheck=1
-gpgkey=https://packages.cloud.google.com/yum/doc/yum-key.gpg https://packages.cloud.google.com/yum/doc/rpm-package-key.gpg
-EOF
-
-dnf install -y kubectl
 
 # install minikube
 echo downloading minikube, check version
 curl -Lo minikube https://storage.googleapis.com/minikube/releases/latest/minikube-linux-amd64
 
-chmod +x minikube
+sudo chmod +x minikube
-mv minikube /usr/local/bin
+sudo mv minikube /usr/local/bin
+
+# start minikube
+minikube start --memory 4096 --vm-driver=kvm2
 
-echo at this point, reboot your Fedora Workstation. After reboot, manually run as non-root
-echo minikube start --memory 4096 --vm-driver=kvm2

nginx-cm.yml

@@ -0,0 +1,20 @@
+apiVersion: v1
+kind: Pod
+metadata:
+  name: nginx-cm
+  labels:
+    role: web
+spec:
+  containers:
+  - name: nginx-cm
+    image: nginx
+    volumeMounts:
+    - name: conf
+      mountPath: /etc/nginx/conf.d
+  volumes:
+  - name: conf
+    configMap:
+      name: nginx-cm
+      items:
+      - key: nginx-custom-config.conf
+        path: default.conf

nginx-custom-config.conf

@@ -0,0 +1,8 @@
+server {
+    listen       8888;
+    server_name  localhost;
+    location / {
+        root   /usr/share/nginx/html;
+        index  index.html index.htm;
+    }
+}

test-cm-pod.yaml

@@ -0,0 +1,15 @@
+apiVersion: v1
+kind: Pod
+metadata:
+  name: test-pod
+spec:
+  containers:
+  - name: test
+    image: nginx
+    env:
+    - name: COLOR
+      valueFrom:
+        configMapKeyRef:
+          name: myconfig
+          key: color
+  restartPolicy: Never