packages/coredns-deployment
1
0
Fork 0
mirror of https://github.com/notherealmarco/coredns-deployment.git synced 2025-05-05 12:32:34 +02:00
Code Issues Projects Releases Packages 1 Wiki Activity Actions

deploy.sh and rollback.sh fixes (#99)

Browse source 
* Don't overwrite KUBECONFIG.

kubectl already knows to look in $HOME/.kube or use $KUBECONFIG.

https://kubernetes.io/docs/tasks/access-application-cluster/configure-access-multiple-clusters/#set-the-kubeconfig-environment-variable

* Use $DIR instead of pwd.

https://stackoverflow.com/a/246128/1881379

* chmod +x kubernetes/rollback.sh
This commit is contained in:
Julian V. Modesto 2018-10-16 11:14:03 -04:00 • committed by Chris O'Haver
parent 2022b220fd
commit a6c087005f
2 changed files with 11 additions and 16 deletions
Download patch file Download diff file Expand all files Collapse all files

19
kubernetes/deploy.sh
View file

@ -2,9 +2,11 @@
# Deploys CoreDNS to a cluster currently running Kube-DNS.
set -eo pipefail
show_help () {
cat << USAGE
usage: $0 [ -r REVERSE-CIDR ] [ -i DNS-IP ] [ -d CLUSTER-DOMAIN ] [ -t YAML-TEMPLATE ] [ -k KUBECONFIG ]
usage: $0 [ -r REVERSE-CIDR ] [ -i DNS-IP ] [ -d CLUSTER-DOMAIN ] [ -t YAML-TEMPLATE ]
-r : Define a reverse zone for the given CIDR. You may specifcy this option more
than once to add multiple reverse zones. If no reverse CIDRs are defined,
@ -18,8 +20,9 @@ exit 0
}
# Simple Defaults
DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null && pwd )"
CLUSTER_DOMAIN=cluster.local
YAML_TEMPLATE=`pwd`/coredns.yaml.sed
YAML_TEMPLATE="$DIR/coredns.yaml.sed"
STUBDOMAINS=""
UPSTREAM=\\/etc\\/resolv\.conf
FEDERATIONS=""
@ -100,26 +103,16 @@ while getopts "hsr:i:d:t:k:" opt; do
;;
t) YAML_TEMPLATE=$OPTARG
;;
k) KUBECONFIG=$OPTARG
;;
esac
done
# Set kubeconfig flag if config specified
if [[ ! -z $KUBECONFIG ]]; then
if [[ -f $KUBECONFIG ]]; then
KUBECONFIG="--kubeconfig $KUBECONFIG"
else
KUBECONFIG=""
fi
fi
# Conditional Defaults
if [[ -z $REVERSE_CIDRS ]]; then
REVERSE_CIDRS="in-addr.arpa ip6.arpa"
fi
if [[ -z $CLUSTER_DNS_IP ]]; then
# Default IP to kube-dns IP
CLUSTER_DNS_IP=$(kubectl get service --namespace kube-system kube-dns -o jsonpath="{.spec.clusterIP}" $KUBECONFIG)
CLUSTER_DNS_IP=$(kubectl get service --namespace kube-system kube-dns -o jsonpath="{.spec.clusterIP}")
if [ $? -ne 0 ]; then
>&2 echo "Error! The IP address for DNS service couldn't be determined automatically. Please specify the DNS-IP with the '-i' option."
exit 2

8
kubernetes/rollback.sh Normal file → Executable file
View file

@ -2,6 +2,8 @@
# Roll back kube-dns to the cluster which has CoreDNS installed.
set -eo pipefail
show_help () {
cat << USAGE
usage: $0 [ -i DNS-IP ] [ -d CLUSTER-DOMAIN ]
@ -14,12 +16,12 @@ exit 0
}
curl -L https://raw.githubusercontent.com/kubernetes/kubernetes/master/cluster/addons/dns/kube-dns/kube-dns.yaml.base > `pwd`/kube-dns.yaml.sed
# Simple Defaults
DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null && pwd )"
CLUSTER_DOMAIN=cluster.local
YAML_TEMPLATE=`pwd`/kube-dns.yaml.sed
YAML_TEMPLATE="$DIR/kube-dns.yaml.sed"
curl -L https://raw.githubusercontent.com/kubernetes/kubernetes/master/cluster/addons/dns/kube-dns/kube-dns.yaml.base > "$YAML_TEMPLATE"
# Get Opts
while getopts "hi:d:" opt; do