92 lines
2.7 KiB
Bash
92 lines
2.7 KiB
Bash
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#!/bin/bash
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# Copyright 2015 The Kubernetes Authors.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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# provision-network-master configures flannel on the master
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function provision-network-master {
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echo "Provisioning network on master"
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FLANNEL_ETCD_URL="http://${MASTER_IP}:4379"
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# Install etcd for flannel data
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if ! which etcd >/dev/null 2>&1; then
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dnf install -y etcd
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# Modify etcd configuration for flannel data
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cat <<EOF >/etc/etcd/etcd.conf
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ETCD_NAME=flannel
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ETCD_DATA_DIR="/var/lib/etcd/flannel.etcd"
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ETCD_LISTEN_PEER_URLS="http://${MASTER_IP}:4380"
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ETCD_LISTEN_CLIENT_URLS="http://${MASTER_IP}:4379"
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ETCD_INITIAL_ADVERTISE_PEER_URLS="http://${MASTER_IP}:4380"
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ETCD_INITIAL_CLUSTER="flannel=http://${MASTER_IP}:4380"
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ETCD_ADVERTISE_CLIENT_URLS="${FLANNEL_ETCD_URL}"
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EOF
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# fix the etcd boot failure issue
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sed -i '/^Restart/a RestartSec=10' /usr/lib/systemd/system/etcd.service
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systemctl daemon-reload
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# Enable and start etcd
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systemctl enable etcd
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systemctl start etcd
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fi
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# Install flannel for overlay
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if ! which flanneld >/dev/null 2>&1; then
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dnf install -y flannel
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cat <<EOF >/etc/flannel-config.json
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{
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"Network": "${CONTAINER_SUBNET}",
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"SubnetLen": 24,
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"Backend": {
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"Type": "udp",
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"Port": 8285
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}
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}
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EOF
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# Import default configuration into etcd for master setup
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etcdctl -C ${FLANNEL_ETCD_URL} set /coreos.com/network/config < /etc/flannel-config.json
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# Configure local daemon to speak to master
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NETWORK_CONF_PATH=/etc/sysconfig/network-scripts/
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if_to_edit=$( find ${NETWORK_CONF_PATH}ifcfg-* | xargs grep -l VAGRANT-BEGIN )
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NETWORK_IF_NAME=`echo ${if_to_edit} | awk -F- '{ print $3 }'`
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# needed for vsphere support
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# handle the case when no 'VAGRANT-BEGIN' comment was defined in network-scripts
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# set the NETWORK_IF_NAME to have a default value in such case
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if [[ -z "$NETWORK_IF_NAME" ]]; then
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NETWORK_IF_NAME=${DEFAULT_NETWORK_IF_NAME}
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fi
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cat <<EOF >/etc/sysconfig/flanneld
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FLANNEL_ETCD="${FLANNEL_ETCD_URL}"
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FLANNEL_ETCD_KEY="/coreos.com/network"
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FLANNEL_OPTIONS="-iface=${NETWORK_IF_NAME} --ip-masq"
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EOF
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# Start flannel
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systemctl enable flanneld
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systemctl start flanneld
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fi
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echo "Network configuration verified"
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}
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