149 lines
5.3 KiB
Smarty
149 lines
5.3 KiB
Smarty
#!/bin/bash -xe
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# Copyright 2023 VEXXHOST, Inc.
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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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function get_ip_address_from_interface {
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local interface=$1
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local ip=$(ip -4 -o addr s "${interface}" | awk '{ print $4; exit }' | awk -F '/' 'NR==1 {print $1}')
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if [ -z "${ip}" ] ; then
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exit 1
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fi
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echo ${ip}
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}
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function get_ip_prefix_from_interface {
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local interface=$1
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local prefix=$(ip -4 -o addr s "${interface}" | awk '{ print $4; exit }' | awk -F '/' 'NR==1 {print $2}')
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if [ -z "${prefix}" ] ; then
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exit 1
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fi
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echo ${prefix}
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}
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function migrate_ip_from_nic {
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src_nic=$1
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bridge_name=$2
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# Enabling explicit error handling: We must avoid to lose the IP
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# address in the migration process. Hence, on every error, we
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# attempt to assign the IP back to the original NIC and exit.
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set +e
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ip=$(get_ip_address_from_interface ${src_nic})
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prefix=$(get_ip_prefix_from_interface ${src_nic})
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bridge_ip=$(get_ip_address_from_interface "${bridge_name}")
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bridge_prefix=$(get_ip_prefix_from_interface "${bridge_name}")
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ip link set ${bridge_name} up
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if [[ -n "${ip}" && -n "${prefix}" ]]; then
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ip addr flush dev ${src_nic}
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if [ $? -ne 0 ] ; then
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ip addr add ${ip}/${prefix} dev ${src_nic}
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echo "Error while flushing IP from ${src_nic}."
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exit 1
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fi
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ip addr add ${ip}/${prefix} dev "${bridge_name}"
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if [ $? -ne 0 ] ; then
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echo "Error assigning IP to bridge "${bridge_name}"."
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ip addr add ${ip}/${prefix} dev ${src_nic}
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exit 1
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fi
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elif [[ -n "${bridge_ip}" && -n "${bridge_prefix}" ]]; then
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echo "Bridge '${bridge_name}' already has IP assigned. Keeping the same:: IP:[${bridge_ip}]; Prefix:[${bridge_prefix}]..."
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elif [[ -z "${bridge_ip}" && -z "${ip}" ]]; then
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echo "Interface and bridge have no ips configured. Leaving as is."
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else
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echo "Interface ${src_nic} has invalid IP address. IP:[${ip}]; Prefix:[${prefix}]..."
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exit 1
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fi
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set -e
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}
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# Detect tunnel interface
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tunnel_interface="{{- .Values.network.interface.tunnel -}}"
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if [ -z "${tunnel_interface}" ] ; then
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# search for interface with tunnel network routing
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tunnel_network_cidr="{{- .Values.network.interface.tunnel_network_cidr -}}"
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if [ -z "${tunnel_network_cidr}" ] ; then
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tunnel_network_cidr="0/0"
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fi
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# If there is not tunnel network gateway, exit
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tunnel_interface=$(ip -4 route list ${tunnel_network_cidr} | awk -F 'dev' '{ print $2; exit }' \
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| awk '{ print $1 }') || exit 1
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fi
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ovs-vsctl set open . external_ids:ovn-encap-ip="$(get_ip_address_from_interface ${tunnel_interface})"
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# Configure system ID
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set +e
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ovs-vsctl get open . external-ids:system-id
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if [ $? -eq 1 ]; then
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ovs-vsctl set open . external-ids:system-id="$(uuidgen)"
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fi
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set -e
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# Configure OVN remote
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{{- if empty .Values.conf.ovn_remote -}}
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{{- $sb_svc_name := "ovn-ovsdb-sb" -}}
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{{- $sb_svc := (tuple $sb_svc_name "internal" . | include "helm-toolkit.endpoints.hostname_fqdn_endpoint_lookup") -}}
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{{- $sb_port := (tuple "ovn-ovsdb-sb" "internal" "ovsdb" . | include "helm-toolkit.endpoints.endpoint_port_lookup") -}}
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{{- $sb_service_list := list -}}
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{{- range $i := until (.Values.pod.replicas.ovn_ovsdb_sb | int) -}}
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{{- $sb_service_list = printf "tcp:%s-%d.%s:%s" $sb_svc_name $i $sb_svc $sb_port | append $sb_service_list -}}
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{{- end }}
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ovs-vsctl set open . external-ids:ovn-remote="{{ include "helm-toolkit.utils.joinListWithComma" $sb_service_list }}"
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{{- else -}}
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ovs-vsctl set open . external-ids:ovn-remote="{{ .Values.conf.ovn_remote }}"
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{{- end }}
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# Configure OVN values
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ovs-vsctl set open . external-ids:rundir="/var/run/openvswitch"
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ovs-vsctl set open . external-ids:ovn-encap-type="{{ .Values.conf.ovn_encap_type }}"
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ovs-vsctl set open . external-ids:ovn-bridge="{{ .Values.conf.ovn_bridge }}"
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ovs-vsctl set open . external-ids:ovn-bridge-mappings="{{ .Values.conf.ovn_bridge_mappings }}"
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GW_ENABLED=$(cat /tmp/gw-enabled/gw-enabled)
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if [[ ${GW_ENABLED} == enabled ]]; then
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ovs-vsctl set open . external-ids:ovn-cms-options={{ .Values.conf.ovn_cms_options_gw_enabled }}
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else
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ovs-vsctl set open . external-ids:ovn-cms-options={{ .Values.conf.ovn_cms_options }}
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fi
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# Configure hostname
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{{- if .Values.pod.use_fqdn.compute }}
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ovs-vsctl set open . external-ids:hostname="$(hostname -f)"
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{{- else }}
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ovs-vsctl set open . external-ids:hostname="$(hostname)"
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{{- end }}
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# Create bridges and create ports
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# handle any bridge mappings
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# /tmp/auto_bridge_add is one line json file: {"br-ex1":"eth1","br-ex2":"eth2"}
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for bmap in `sed 's/[{}"]//g' /tmp/auto_bridge_add | tr "," "\n"`
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do
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bridge=${bmap%:*}
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iface=${bmap#*:}
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ovs-vsctl --may-exist add-br $bridge -- set bridge $bridge protocols=OpenFlow13
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if [ -n "$iface" ] && [ "$iface" != "null" ] && ( ip link show $iface 1>/dev/null 2>&1 );
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then
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ovs-vsctl --may-exist add-port $bridge $iface
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migrate_ip_from_nic $iface $bridge
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fi
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done
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