docker:kubernetes
 
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docker:kubernetes [2020/05/25 11:44] – [Master] tmadedocker:kubernetes [2020/06/08 16:18] – [Reset k8s] tmade
Line 203: Line 203:
  
 #author:  Thomas Roehm #author:  Thomas Roehm
-#version: 1.4+#version: 1.5
  
 USER="kubernetes" USER="kubernetes"
Line 214: Line 214:
 DASBOARD="/home/kubernetes/dashboard" DASBOARD="/home/kubernetes/dashboard"
 # filename such as "kubernetes-dashboard-v2.0.0-rc5.yaml" expected # filename such as "kubernetes-dashboard-v2.0.0-rc5.yaml" expected
-DASHVERS="v2.0.0-rc5"+DASHVERS="v2.0.1"
 PODNETWORKADDON="192.168.0.0/16" PODNETWORKADDON="192.168.0.0/16"
  
Line 220: Line 220:
 echo "Setup -------------k8s--------------" echo "Setup -------------k8s--------------"
 echo "" echo ""
-su - kubernetes -c "kubectl version"+su - kubernetes -c "kubectl version 2> /dev/null"
 echo "" echo ""
 su - kubernetes -c "read -s -n 1 -p \"Press any key to continue . . .\"" su - kubernetes -c "read -s -n 1 -p \"Press any key to continue . . .\""
Line 284: Line 284:
  
 echo "" echo ""
-read -p "Do you want to schedule pods on your master? Please enter \"y\" or \"n\": " SCHEDULE+while [ -z $SCHEDULE ] ; 
 +do 
 +      read -p "Do you want to schedule pods on your master? Please enter \"y\" or \"n\": " SCHEDULE 
 +      echo "Please enter \"y\" or \"n\"" 
 +done 
 + 
 +echo ""
 echo "You´ve entered:  \"$SCHEDULE\"" echo "You´ve entered:  \"$SCHEDULE\""
 echo "" echo ""
 +
 if [ $SCHEDULE = y ] if [ $SCHEDULE = y ]
 then then
Line 698: Line 705:
 #/bin/bash #/bin/bash
  
-echo "Important: The \"Common Name\" (CN) must be the same as the ServiceAccount name (e. g. tmade)!"+echo "" 
 +echo "Important: The \"Common Name\" (CN) must be the same as the ServiceAccount name (e. g. MyHostname)!"
  
 #author:  Thomas Roehm #author:  Thomas Roehm
-#version: 1.3+#version: 1.4
  
 C="DE" C="DE"
 ST="BW" ST="BW"
 L="MyCity" L="MyCity"
-O="tmade" +O="MyCompany" 
-OU="Cluster" +OU="MyDepartment" 
-CN="tmade"+CN="MyHostname"
 MAIL="test@test.com" MAIL="test@test.com"
 CERT="$(echo ~/certs)" CERT="$(echo ~/certs)"
Line 725: Line 733:
 fi fi
  
-openssl req -out kubecfg-${CN}.csr -new -newkey rsa:4096 -nodes -keyout kubecfg-${CN}.key -subj "/\C=${C}/ST=${ST}/L=${L}/O=${O}/OU=${OU}/CN=${CN}/emailAddress=${MAIL}"+dd if=/dev/urandom of=~/.rnd bs=256 count=1 2> /dev/null 
 +openssl req -out kubecfg-${CN}.csr -new -newkey rsa:4096 -nodes -keyout kubecfg-${CN}.key -subj "/C=${C}/ST=${ST}/L=${L}/O=${O}/OU=${OU}/CN=${CN}/emailAddress=${MAIL}"
 sudo openssl x509 -req -in kubecfg-${CN}.csr -CA /etc/kubernetes/pki/ca.crt -CAkey /etc/kubernetes/pki/ca.key -CAcreateserial -out kubecfg-${CN}.crt -days 1000 -sha256 sudo openssl x509 -req -in kubecfg-${CN}.csr -CA /etc/kubernetes/pki/ca.crt -CAkey /etc/kubernetes/pki/ca.key -CAcreateserial -out kubecfg-${CN}.crt -days 1000 -sha256
 openssl pkcs12 -export -clcerts -inkey kubecfg-${CN}.key -in kubecfg-${CN}.crt -out kubecfg-${CN}.p12 -name "kubernetes-client" openssl pkcs12 -export -clcerts -inkey kubecfg-${CN}.key -in kubecfg-${CN}.crt -out kubecfg-${CN}.p12 -name "kubernetes-client"
Line 1250: Line 1259:
  
 === Install nginx ingress-controller === === Install nginx ingress-controller ===
 +
 +Check also on https://docs.nginx.com/nginx-ingress-controller/installation/installation-with-manifests/
  
 <code sh install-nginx-ingress-controller.sh> <code sh install-nginx-ingress-controller.sh>
Line 1255: Line 1266:
  
 #author:  Thomas Roehm #author:  Thomas Roehm
-#version: 1.1+#version: 1.2
  
 VERSION="1.6.3" VERSION="1.6.3"
-HOME="/home/kubernetes"+USER="kubernetes" 
 +HOME="/home/${USER}"
 FILE="${HOME}/kubernetes-ingress" FILE="${HOME}/kubernetes-ingress"
  
-if  [ -f $FILE ]+if  [ -d ${FILE} ]
 then then
-        echo "Downloading Ingress..." 
-else 
         echo ""         echo ""
         echo "${FILE} exists, renaming..."         echo "${FILE} exists, renaming..."
Line 1270: Line 1280:
  
         mv ${FILE} ${FILE}.bak         mv ${FILE} ${FILE}.bak
 +else
 +        echo ""
 +        echo "Downloading Ingress..."
 +        echo ""
 fi fi
  
 +cd ${HOME}
 git clone https://github.com/nginxinc/kubernetes-ingress/ git clone https://github.com/nginxinc/kubernetes-ingress/
 cd kubernetes-ingress/deployments cd kubernetes-ingress/deployments
 git checkout v${VERSION} git checkout v${VERSION}
 +chown -R ${USER}:${USER} ${FILE}
  
 echo "" echo ""
Line 1280: Line 1296:
 echo "" echo ""
  
-kubectl apply -f common/ns-and-sa.yaml+su - kubernetes -c "kubectl apply -f ~/kubernetes-ingress/deployments/common/ns-and-sa.yaml"
  
 echo "" echo ""
Line 1286: Line 1302:
 echo "" echo ""
  
-kubectl apply -f rbac/rbac.yaml+su - kubernetes -c "kubectl apply -f ~/kubernetes-ingress/deployments/rbac/rbac.yaml"
  
 echo "" echo ""
Line 1292: Line 1308:
 echo "" echo ""
  
-kubectl apply -f common/default-server-secret.yaml+su - kubernetes -c "kubectl apply -f ~/kubernetes-ingress/deployments/common/default-server-secret.yaml"
  
 echo "" echo ""
Line 1298: Line 1314:
 echo "" echo ""
  
-kubectl apply -f common/nginx-config.yaml+su - kubernetes -c "kubectl apply -f ~/kubernetes-ingress/deployments/common/nginx-config.yaml"
  
 echo "" echo ""
Line 1304: Line 1320:
 echo "" echo ""
  
-kubectl apply -f common/custom-resource-definitions.yaml+su - kubernetes -c "kubectl apply -f ~/kubernetes-ingress/deployments/common/custom-resource-definitions.yaml"
  
 echo "" echo ""
Line 1311: Line 1327:
  
 #kubectl apply -f deployment/nginx-ingress.yaml #kubectl apply -f deployment/nginx-ingress.yaml
-kubectl apply -f daemon-set/nginx-ingress.yaml+su - kubernetes -c "kubectl apply -f ~/kubernetes-ingress/deployments/daemon-set/nginx-ingress.yaml"
  
 echo "" echo ""
 echo "Ingress Controller has been installed." echo "Ingress Controller has been installed."
 +echo ""
 +echo "Status - please press \"ctrl + c\" when all pods are running"
 echo "" echo ""
  
-kubectl get pods -A -o wide+watch kubectl get pods -A -o wide
 </code> </code>
  
Line 1381: Line 1399:
 #          servicePort: 80 #          servicePort: 80
  
 +</code>
 +
 +Another example:
 +
 +<code>
 +apiVersion: networking.k8s.io/v1beta1
 +kind: Ingress
 +metadata:
 +  name: simple-fanout-example
 +  annotations:
 +    nginx.ingress.kubernetes.io/rewrite-target: /
 +spec:
 +  rules:
 +  - host: foo.bar.com
 +    http:
 +      paths:
 +      - path: /foo
 +        backend:
 +          serviceName: service1
 +          servicePort: 4200
 +      - path: /bar
 +        backend:
 +          serviceName: service2
 +          servicePort: 8080
 </code> </code>
  
Line 1441: Line 1483:
 ====Alias====  ====Alias==== 
  
-  echo "alias kg='kubectl get'" >> /etc/bash.bashrc+<code> 
 +cat >> /etc/bash.bashrc <<EOF 
 +#A41 
 +alias ..='cd ../.' 
 +alias ...='cd ../../.' 
 +alias kc='kubectl' 
 +EOF 
 +</code> 
 + 
 +Activate: 
 + 
 +  source /etc/bash.bashrc
  
  
Line 1475: Line 1528:
  
 #author:  Thomas Roehm #author:  Thomas Roehm
-#version: 1.1+#version: 1.2
  
 echo "You´re running version:" echo "You´re running version:"
Line 1484: Line 1537:
  
 apt-get update apt-get update
-apt-cache policy kubeadm+apt-cache policy kubeadm  | head -n 30
  
 echo "" echo ""
Line 1591: Line 1644:
  
 #author:  Thomas Roehm #author:  Thomas Roehm
-#version: 1.1+#version: 1.3
  
 echo "You´re running version:" echo "You´re running version:"
 echo "" echo ""
-su - kubernetes -c "kubectl version"+kubectl version 2> /dev/null
 echo "" echo ""
 read -s -n 1 -p "Press any key to continue . . ." read -s -n 1 -p "Press any key to continue . . ."
 #su - kubernetes -c "read -s -n 1 -p \"Press any key to continue . . .\"" #su - kubernetes -c "read -s -n 1 -p \"Press any key to continue . . .\""
 apt-get update apt-get update
-apt-cache policy kubeadm+apt-cache policy kubeadm | head -n 30
  
 echo "" echo ""
Line 1662: Line 1715:
  
  
-====Reset k8s==== 
  
-<code sh reset-k8s.sh> 
-#!/bin/bash 
- 
-#author:  Thomas Roehm 
-#version: 1.1 
- 
-HOME="/home/kubernetes" 
- 
-sudo kubeadm reset -f 
-iptables -F && iptables -t nat -F && iptables -t mangle -F && iptables -X 
-rm -r ${HOME}/.kube 
-</code> 
 ====helm==== ====helm====
  
docker/kubernetes.txt · Last modified: 2022/10/03 15:49 by tmade
 
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