mirrors
/
kubernetes-the-hard-way
mirror of https://github.com/kelseyhightower/kubernetes-the-hard-way
1
0
Fork 0
Code Issues Projects Releases Wiki Activity

check_systemd_api

pull/584/head
Sujith Abdul Rahim 2020-04-25 15:48:55 +05:30
parent c0f71699bd
commit 5409a1c6da
1 changed files with 49 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

48
vagrant/cert_verify.sh
View File

@ -50,6 +50,14 @@ KSKUBECONFIG=/var/lib/kubernetes/kube-scheduler.kubeconfig
# admin.kubeconfig location
ADMINKUBECONFIG=/var/lib/kubernetes/admin.kubeconfig
# All systemd service locations
# etcd systemd service
SYSTEMD_ETCD_FILE=/etc/systemd/system/etcd.service
# kub-api systemd service
SYSTEMD_API_FILE=/etc/systemd/system/kube-apiserver.service
check_cert_ca()
{
if [ -z $CACERT ] && [ -z $CAKEY ]
@ -422,6 +430,45 @@ check_systemd_etcd()
fi
}
check_systemd_api()
{
if [ -z $APICERT ] && [ -z $APIKEY ]
then
echo "please specify kube-api cert and key location, Exiting...."
exit 1
elif [ -f $SYSTEMD_API_FILE ]
then
echo "Systemd for kube-api service found, verifying the authenticity"
INTERNAL_IP=$(ip addr show enp0s8 | grep "inet " | awk '{print $2}' | cut -d / -f 1)
ADVERTISE_ADDRESS=$(systemctl cat kube-apiserver.service | grep "\--advertise-address" | awk '{print $1}' | cut -d "=" -f2)
CLIENT_CA_FILE=$(systemctl cat kube-apiserver.service | grep "\--client-ca-file" | awk '{print $1}' | cut -d "=" -f2)
ETCD_CA_FILE=$(systemctl cat kube-apiserver.service | grep "\--etcd-cafile" | awk '{print $1}' | cut -d "=" -f2)
ETCD_CERT_FILE=$(systemctl cat kube-apiserver.service | grep "\--etcd-certfile" | awk '{print $1}' | cut -d "=" -f2)
ETCD_KEY_FILE=$(systemctl cat kube-apiserver.service | grep "\--etcd-keyfile" | awk '{print $1}' | cut -d "=" -f2)
KUBELET_CERTIFICATE_AUTHORITY=$(systemctl cat kube-apiserver.service | grep "\--kubelet-certificate-authority" | awk '{print $1}' | cut -d "=" -f2)
KUBELET_CLIENT_CERTIFICATE=$(systemctl cat kube-apiserver.service | grep "\--kubelet-client-certificate" | awk '{print $1}' | cut -d "=" -f2)
KUBELET_CLIENT_KEY=$(systemctl cat kube-apiserver.service | grep "\--kubelet-client-key" | awk '{print $1}' | cut -d "=" -f2)
SERVICE_ACCOUNT_KEY_FILE=$(systemctl cat kube-apiserver.service | grep "\--service-account-key-file" | awk '{print $1}' | cut -d "=" -f2)
TLS_CERT_FILE=$(systemctl cat kube-apiserver.service | grep "\--tls-cert-file" | awk '{print $1}' | cut -d "=" -f2)
TLS_PRIVATE_KEY_FILE=$(systemctl cat kube-apiserver.service | grep "\--tls-private-key-file" | awk '{print $1}' | cut -d "=" -f2)
if [ $ADVERTISE_ADDRESS == $INTERNAL_IP ] && [ $CLIENT_CA_FILE == $CACERT ] && [ $ETCD_CA_FILE == $CACERT ] && \
[ $ETCD_CERT_FILE == "/var/lib/kubernetes/etcd-server.crt" ] && [ $ETCD_KEY_FILE == "/var/lib/kubernetes/etcd-server.key" ] && \
[ $KUBELET_CERTIFICATE_AUTHORITY == $CACERT ] && [ $KUBELET_CLIENT_CERTIFICATE == $APICERT ] && [ $KUBELET_CLIENT_KEY == $APIKEY ] && \
[ $SERVICE_ACCOUNT_KEY_FILE == $SACERT ] && [ $TLS_CERT_FILE == $APICERT ] && [ $TLS_PRIVATE_KEY_FILE == $APIKEY ]
then
echo "kube-apiserver advertise-address/ client-ca-file/ etcd-cafile/ etcd-certfile/ etcd-keyfile/ kubelet-certificate-authority/ kubelet-client-certificate/ kubelet-client-key/ service-account-key-file/ tls-cert-file/ tls-private-key-file are correct"
else
echo "Exiting...Found mismtach in the kube-apiserver systemd file, check advertise-address/ client-ca-file/ etcd-cafile/ etcd-certfile/ etcd-keyfile/ kubelet-certificate-authority/ kubelet-client-certificate/ kubelet-client-key/ service-account-key-file/ tls-cert-file/ tls-private-key-file under /etc/systemd/system/kube-apiserver.service"
exit 1
fi
else
echo "kube-apiserver.crt / kube-apiserver.key is missing"
exit 1
fi
}
# CRT & KEY verification
check_cert_ca
@ -441,3 +488,4 @@ check_cert_adminkubeconfig
# Systemd verification
check_systemd_etcd
check_systemd_api