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