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kubernetes: Add optional DNS-IP paramater (#35)

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* add opt dns ip param

* make error msg better
This commit is contained in:
Chris O'Haver 2017-12-20 15:50:07 -05:00 • committed by John Belamaric
parent 23252c7c79
commit 84cd6fe922
1 changed files with 10 additions and 7 deletions
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15
kubernetes/deploy.sh
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@ -4,18 +4,21 @@
SERVICE_CIDR=$1 SERVICE_CIDR=$1
POD_CIDR=$2 POD_CIDR=$2
CLUSTER_DOMAIN=${3:-cluster.local} CLUSTER_DNS_IP=$3
YAML_TEMPLATE=${4:-`pwd`/coredns.yaml.sed} CLUSTER_DOMAIN=${4:-cluster.local}
YAML_TEMPLATE=${5:-`pwd`/coredns.yaml.sed}
if [[ -z $SERVICE_CIDR ]]; then if [[ -z $SERVICE_CIDR ]]; then
echo "Usage: $0 SERVICE-CIDR [ POD-CIDR ] [ CLUSTER-DOMAIN ] [ YAML-TEMPLATE ]" echo "Usage: $0 SERVICE-CIDR [ POD-CIDR ] [ DNS-IP ] [ CLUSTER-DOMAIN ] [ YAML-TEMPLATE ]"
exit 1 exit 1
fi fi
CLUSTER_DNS_IP=$(kubectl get service --namespace kube-system kube-dns -o jsonpath="{.spec.clusterIP}") if [[ -z $CLUSTER_DNS_IP ]]; then
if [ $? -ne 0 ]; then CLUSTER_DNS_IP=$(kubectl get service --namespace kube-system kube-dns -o jsonpath="{.spec.clusterIP}")
>&2 echo "Error! The IP address for DNS service couldn't be determined by kubectl command" if [ $? -ne 0 ]; then
>&2 echo "Error! The IP address for DNS service couldn't be determined automatically. Please specify the DNS-IP in paramaters."
exit 2 exit 2
fi
fi fi
sed -e s/CLUSTER_DNS_IP/$CLUSTER_DNS_IP/g -e s/CLUSTER_DOMAIN/$CLUSTER_DOMAIN/g -e s?SERVICE_CIDR?$SERVICE_CIDR?g -e s?POD_CIDR?$POD_CIDR?g $YAML_TEMPLATE sed -e s/CLUSTER_DNS_IP/$CLUSTER_DNS_IP/g -e s/CLUSTER_DOMAIN/$CLUSTER_DOMAIN/g -e s?SERVICE_CIDR?$SERVICE_CIDR?g -e s?POD_CIDR?$POD_CIDR?g $YAML_TEMPLATE