K8s Applications mit MicroK8S auf Raspberry PI. Alfred Sabitzer

2021-11-23 21:37:19 +0100 (Di, 23. Nov 2021) $

      # $Revision: 1285 $

      # $Author: alfred $

      # $HeadURL: https://monitoring.slainte.at/svn/slainte/trunk/k8s/k8s/K13_registry.sh $

      # $Id: K13_registry.sh 1285 2021-11-23 20:37:19Z alfred $

      #

      # Schnell-Installation microk8s - Installation praktischer AddOns

      #

      ############################################################################################

      #shopt -o -s errexit #—Terminates the shell script if a command returns an error code.

      shopt -o -s xtrace #—Displays each command before it’s executed.

      shopt -o -s nounset #-No Variables without definition

      # Voraussetzung: Sauber installierte Nodes, Verbundener Cluster

      sname=$(basename "$0")

      app="mikrok8s/install/${sname}"

      pf=\$"Revision: "

      sf=" "\$

      fr="\$Revision: 1285 $"

      revision=${fr#*"$pf"}

      revision=${revision%"$sf"*}

      xd=(`date '+%Y-%m-%d'`)

      wd="${HOME}/copy/${app}/${xd}/r${revision}"

      id="/opt/cluster/${app}/${xd}/r${revision}"

      rm -f -R ${wd}

      mkdir -p ${wd}

      #

      # Zu diesem Zeitpunkt sollte es eine Default-Storage-Class geben, wo das abgelegt wird.

      ansible pc1 -m shell -a 'microk8s enable registry:size=40Gi'

      ansible pc -m shell -a 'microk8s status --wait-ready'

      #

      # Adaptieren der Services

      #

      cat <<EOF > ${wd}/do_registry.sh

      #!/bin/bash

      #

      # \$Date: 2021-11-23 21:37:19 +0100 (Di, 23. Nov 2021) $

      # \$Revision: 1285 $

      # \$Author: alfred $

      # \$HeadURL: https://monitoring.slainte.at/svn/slainte/trunk/k8s/k8s/K13_registry.sh $

      # \$Id: K13_registry.sh 1285 2021-11-23 20:37:19Z alfred $

      #

      # Ändern des Services auf Loadbalancer

      #

      #shopt -o -s errexit #—Terminates the shell script if a command returns an error code.

      shopt -o -s xtrace #—Displays each command before it’s executed.

      shopt -o -s nounset #-No Variables without definition

      # registry - 192.168.0.213

      microk8s kubectl -n container-registry get service registry -o yaml > ${id}/registry-svc.yaml

      sed 's/NodePort/LoadBalancer/' ${id}/registry-svc.yaml > ${id}/new-registry-svc.yaml

      microk8s kubectl apply -f ${id}/new-registry-svc.yaml --validate=false

      EOF

      #

      chmod 755 ${wd}/do_registry.sh

      ansible pc1 -m shell -a ${id}'/do_registry.sh ' > ${wd}'/do_registry.log'

      #

      cat <<EOF > ${wd}/do_nodes.sh

      #!/bin/bash

      #

      # \$Date: 2021-11-23 21:37:19 +0100 (Di, 23. Nov 2021) $

      # \$Revision: 1285 $

      # \$Author: alfred $

      # \$HeadURL: https://monitoring.slainte.at/svn/slainte/trunk/k8s/k8s/K13_registry.sh $

      # \$Id: K13_registry.sh 1285 2021-11-23 20:37:19Z alfred $

      #

      # Eintragen der Nodes in die hosts-Datei

      #

      #shopt -o -s errexit #—Terminates the shell script if a command returns an error code.

      shopt -o -s xtrace #—Displays each command before it’s executed.

      shopt -o -s nounset #-No Variables without definition

      sudo sed --in-place '/docker.registry/d' /etc/hosts

      microk8s kubectl -n container-registry get service registry -o yaml > ${id}/nodes-registry-svc.yaml

      ip=\$(cat ${id}/nodes-registry-svc.yaml | grep -i " ip: " | awk '{print \$3 }')

      text="\${ip} docker.registry"

      sudo sed -i "$ a \${text}" /etc/hosts

      #

      EOF

      #

      chmod 755 ${wd}/do_nodes.sh

      ansible pc -m shell -a ${id}'/do_nodes.sh '

      #

      # Und jetzt die Repository-Info

      #

      cat <<EOF > ${wd}/do_docker.sh

      #!/bin/bash

      #

      # \$Date: 2021-11-23 21:37:19 +0100 (Di, 23. Nov 2021) $

      # \$Revision: 1285 $

      # \$Author: alfred $

      # \$HeadURL: https://monitoring.slainte.at/svn/slainte/trunk/k8s/k8s/K13_registry.sh $

      # \$Id: K13_registry.sh 1285 2021-11-23 20:37:19Z alfred $

      #

      # Eintragen des Endpoints in die Docker-Registry

      #

      #shopt -o -s errexit #—Terminates the shell script if a command returns an error code.

      #shopt -o -s xtrace #—Displays each command before it’s executed.

      shopt -o -s nounset #-No Variables without definition

      FILENAME="/var/snap/microk8s/current/args/containerd-template.toml"

      sudo sed --in-place '/docker.registry:5000/d' \${FILENAME}

      text=' [plugins."io.containerd.grpc.v1.cri".registry.mirrors."docker.registry:5000"]'

      echo "\${text}" | tee -a \${FILENAME}

      text=' endpoint = ["http://docker.registry:5000"]'

      echo "\${text}" | tee -a \${FILENAME}

      EOF

      #

      chmod 755 ${wd}/do_docker.sh

      ansible pc -m shell -a ${id}'/do_docker.sh '

      #

      # Und jetzt für den Docker selbst

      #

      cat <<EOF > ${wd}/do_pull.sh

      #!/bin/bash

      #

      # \$Date: 2021-11-23 21:37:19 +0100 (Di, 23. Nov 2021) $

      # \$Revision: 1285 $

      # \$Author: alfred $

      # \$HeadURL: https://monitoring.slainte.at/svn/slainte/trunk/k8s/k8s/K13_registry.sh $

      # \$Id: K13_registry.sh 1285 2021-11-23 20:37:19Z alfred