Federation kubeconfig scripts

setup_childcluster_kubeconfig.sh

#!/bin/bash -xe

OLD_CLUSTERNAME="local"
OLD_CONTEXT="kubelet-cluster.second"
OLD_USER="kubelet"

LOADBALANCER="https://fed-loadbalancer-childcluster.kube-system"
NEW_CLUSTERNAME="childcluster"
NEW_CONTEXT="childcluster"
NEW_USER="kubelet-childcluster"
KUBECONFIG="kubeconfig-child.yaml"
export KUBECONFIG

JYPARSER="docker run -i --rm jlordiales/jyparser"

TMP_KC=$(mktemp /tmp/kubeconfig.XXX)
# Update cluster name and server
cat $KUBECONFIG | $JYPARSER set ".clusters[0].name" \"${NEW_CLUSTERNAME}\" > $TMP_KC
mv $TMP_KC $KUBECONFIG
kubectl config set-cluster "$NEW_CLUSTERNAME" --server="${LOADBALANCER}" --insecure-skip-tls-verify=true

# Set user name
cat $KUBECONFIG | $JYPARSER set ".users[0].name" \"kubelet-childcluster\" > $TMP_KC
mv $TMP_KC $KUBECONFIG

# Create new context and delete old one
kubectl config set-context "$NEW_CONTEXT" --cluster="$NEW_CLUSTERNAME" --user="$NEW_USER"
kubectl config use-context "$NEW_CONTEXT"
kubectl config delete-context "$OLD_CONTEXT" || echo "Old context was already deleted"

setup_hostcluster_kubeconfig.sh

#!/bin/bash -xe

OLD_CLUSTERNAME="local"
OLD_CONTEXT="kubelet-cluster.local"
OLD_USER="kubelet"

NEW_CLUSTERNAME="hostcluster"
NEW_CONTEXT="hostcluster"
NEW_USER="kubelet-hostcluster"
KUBECONFIG="kubeconfig-host.yaml"

DEFAULT_CONTEXT="federation"
export KUBECONFIG

JYPARSER="docker run -i --rm jlordiales/jyparser"
TMP_KC=$(mktemp /tmp/kubeconfig.XXX)
# Update cluster name and server
cat "${KUBECONFIG}" | $JYPARSER set ".clusters[1].name" \"${NEW_CLUSTERNAME}\" > $TMP_KC
mv "${TMP_KC}" "${KUBECONFIG}"
kubectl config set-cluster "$NEW_CLUSTERNAME" --server="https://kubernetes.default"

# Set user name
cat $KUBECONFIG | $JYPARSER set ".users[1].name" \"${NEW_USER}\" > $TMP_KC
mv $TMP_KC $KUBECONFIG

# Create new context and delete old one
kubectl config set-context "${NEW_CONTEXT}" --cluster="${NEW_CLUSTERNAME}" --user="${NEW_USER}"
kubectl config delete-context "${OLD_CONTEXT}" || echo "Old context was already deleted"

kubectl config use-context "${DEFAULT_CONTEXT}"