#!/bin/bash # Copyright 2015 The Kubernetes Authors. # # 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. # provision-network-master configures flannel on the master function provision-network-master { echo "Provisioning network on master" FLANNEL_ETCD_URL="http://${MASTER_IP}:4379" # Install etcd for flannel data if ! which etcd >/dev/null 2>&1; then dnf install -y etcd # Modify etcd configuration for flannel data cat </etc/etcd/etcd.conf ETCD_NAME=flannel ETCD_DATA_DIR="/var/lib/etcd/flannel.etcd" ETCD_LISTEN_PEER_URLS="http://${MASTER_IP}:4380" ETCD_LISTEN_CLIENT_URLS="http://${MASTER_IP}:4379" ETCD_INITIAL_ADVERTISE_PEER_URLS="http://${MASTER_IP}:4380" ETCD_INITIAL_CLUSTER="flannel=http://${MASTER_IP}:4380" ETCD_ADVERTISE_CLIENT_URLS="${FLANNEL_ETCD_URL}" EOF # fix the etcd boot failure issue sed -i '/^Restart/a RestartSec=10' /usr/lib/systemd/system/etcd.service systemctl daemon-reload # Enable and start etcd systemctl enable etcd systemctl start etcd fi # Install flannel for overlay if ! which flanneld >/dev/null 2>&1; then dnf install -y flannel cat </etc/flannel-config.json { "Network": "${CONTAINER_SUBNET}", "SubnetLen": 24, "Backend": { "Type": "udp", "Port": 8285 } } EOF # Import default configuration into etcd for master setup etcdctl -C ${FLANNEL_ETCD_URL} set /coreos.com/network/config < /etc/flannel-config.json # Configure local daemon to speak to master NETWORK_CONF_PATH=/etc/sysconfig/network-scripts/ if_to_edit=$( find ${NETWORK_CONF_PATH}ifcfg-* | xargs grep -l VAGRANT-BEGIN ) NETWORK_IF_NAME=`echo ${if_to_edit} | awk -F- '{ print $3 }'` # needed for vsphere support # handle the case when no 'VAGRANT-BEGIN' comment was defined in network-scripts # set the NETWORK_IF_NAME to have a default value in such case if [[ -z "$NETWORK_IF_NAME" ]]; then NETWORK_IF_NAME=${DEFAULT_NETWORK_IF_NAME} fi cat </etc/sysconfig/flanneld FLANNEL_ETCD="${FLANNEL_ETCD_URL}" FLANNEL_ETCD_KEY="/coreos.com/network" FLANNEL_OPTIONS="-iface=${NETWORK_IF_NAME} --ip-masq" EOF # Start flannel systemctl enable flanneld systemctl start flanneld fi echo "Network configuration verified" }