From ddf2e3a3c1951f993df493c75d2f02e4ac43097c Mon Sep 17 00:00:00 2001 From: Lucjan Bryndza Date: Tue, 31 Mar 2020 10:28:03 +0200 Subject: MetalLB install script for bare metal cluster If Ingress controller is exposed via NodePort it listens on non standard port, so it can be quite problematic. Exposing via LoadBalancer doesn't work properly on bare metal Kubernetes cluster, so external LB solution is needed. Signed-off-by: Lucjan Bryndza Change-Id: I9a2032e8501caca7c3a564f6bbcf969fdde31da2 Issue-ID: OOM-2346 --- .../install-metallb-on-cluster.sh | 85 ++++++++++++++++++++++ 1 file changed, 85 insertions(+) create mode 100755 kubernetes/contrib/metallb-loadbalancer-inst/install-metallb-on-cluster.sh diff --git a/kubernetes/contrib/metallb-loadbalancer-inst/install-metallb-on-cluster.sh b/kubernetes/contrib/metallb-loadbalancer-inst/install-metallb-on-cluster.sh new file mode 100755 index 0000000000..6e412a3688 --- /dev/null +++ b/kubernetes/contrib/metallb-loadbalancer-inst/install-metallb-on-cluster.sh @@ -0,0 +1,85 @@ +#!/bin/bash -e +# +# Copyright 2020 Samsung Electronics Co., Ltd. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +# + +usage() { +cat << ==usage +$0 Automatic configuration using external addresess from nodes +$0 --help This message +$0 -h This message +$0 [cluster_ip1] ... [cluster_ipn] Cluster address or ip ranges +==usage +} + + +find_nodes_with_external_addrs() +{ + local WORKER_NODES=$(kubectl get no -l node-role.kubernetes.io/worker=true -o jsonpath='{.items..metadata.name}') + for worker in $WORKER_NODES; do + local external_ip=$(kubectl get no $worker -o jsonpath='{.metadata.annotations.rke\.cattle\.io/external-ip }') + local internal_ip=$(kubectl get no $worker -o jsonpath='{.metadata.annotations.rke\.cattle\.io/internal-ip }') + if [ $internal_ip != $external_ip ]; then + echo $external_ip + fi + done +} + +generate_config_map() +{ +cat <