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vwan-functions.sh
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############################################################################
# Created by Jose Moreno
# May 2020
#
# Contains functions to manage VWAN using the 2020-05-01 APIs for custom routing
# Support for up to 3 locations.
############################################################################
# Variables
# rg=vwantest # RG to be defined in the main function
# vwan_name=vwantest # vwan_name to be defined in the main function
location1=westcentralus
location2=westcentralus
location3=uksouth
password=Microsoft123! # Used as IPsec PSK too
publisher=cisco
offer=cisco-csr-1000v
sku=16_12-byol
version=$(az vm image list -p $publisher -f $offer -s $sku --all --query '[0].version' -o tsv)
nva_size=Standard_B2ms
vm_size=Standard_B1ms
logws_name=log$RANDOM
azfw_policy_name=vwan
#####################
# JSON snippets #
#####################
# REST Variables
# vwan_api_version=2020-05-01
vwan_api_version=2021-03-01
subscription_id=$(az account show --query id -o tsv)
# JSON
vwan_json='{location: $location, properties: {disableVpnEncryption: false, type: $sku}}'
vhub_json='{location: $location, properties: {virtualWan: {id: $vwan_id}, addressPrefix: $hub_prefix, sku: $sku}}'
vpnsitelink_json='{name: $link_name, properties: {ipAddress: $remote_pip, bgpProperties: {bgpPeeringAddress: $remote_bgp_ip, asn: $remote_asn}, linkProperties: {linkProviderName: "vendor1", linkSpeedInMbps: 100}}}'
vpnsite_json='{location: $location, properties: {virtualWan: {id: $vwan_id}, addressSpace: { addressPrefixes: [ $site_prefix ] }, isSecuritySite: $security, vpnSiteLinks: [ '${vpnsitelink_json}']}}'
cx_json='{name: $cx_name, properties: {connectionBandwidth: 200, vpnConnectionProtocolType: "IKEv2", enableBgp: true, sharedKey: $psk, vpnSiteLink: {id: $site_link_id}}}'
vpncx_json='{properties: {enableInternetSecurity: true, remoteVpnSite: {id: $site_id}, vpnLinkConnections: ['$cx_json']}}'
vpngw_json='{location: $location, properties: {virtualHub: {id: $vhub_id}, connections: [], isRoutingPreferenceInternet: true, bgpSettings: {asn: $asn, peerWeight: 0}}}'
vnet_cx_json='{properties: {remoteVirtualNetwork: {id: $vnet_id}, enableInternetSecurity: true}}'
rt_json='{properties: {routes: [], labels: []}}'
route_json='{name: $name, destinationType: "CIDR", destinations: [ $prefixes ], nextHopType: $type, nextHop: $nexthop }'
cxroute_json='{name: $name, addressPrefixes: [ $prefixes ], nextHopIpAddress: $nexthop }'
###############
# Aliases #
###############
alias remote="ssh -n -o BatchMode=yes -o StrictHostKeyChecking=no"
####################
# Wait functions #
####################
wait_interval=5
function wait_until_finished {
resource_id=$1
resource_name=$(echo $resource_id | cut -d/ -f 9)
echo "Waiting for resource $resource_name to finish provisioning..."
start_time=`date +%s`
state=$(az resource show --id $resource_id --query properties.provisioningState -o tsv)
until [[ "$state" == "Succeeded" ]] || [[ "$state" == "Failed" ]] || [[ -z "$state" ]]
do
sleep $wait_interval
state=$(az resource show --id $resource_id --query properties.provisioningState -o tsv)
done
if [[ -z "$state" ]]
then
echo "Something really bad happened..."
else
run_time=$(expr `date +%s` - $start_time)
((minutes=${run_time}/60))
((seconds=${run_time}%60))
# echo "Resource $resource_name provisioning state is $state, wait time $minutes minutes and $seconds seconds"
fi
}
function wait_until_csr_finished {
branch_id=$1
wait_interval_csr=30 # longer wait interval, since this is quite verbose
echo "Waiting until CSR in branch${branch_id} is reachable..."
# Wait until getting an IP
branch_ip=$(az network public-ip show -n "branch${branch_id}-pip" -g $rg --query ipAddress -o tsv 2>/dev/null)
until [[ -n "$branch_ip" ]]
do
sleep $wait_interval_csr
branch_ip=$(az network public-ip show -n "branch${branch_id}-pip" -g $rg --query ipAddress -o tsv 2>/dev/null)
done
# Wait until getting SSH output
command="sho ver | i uptime"
command_output=$(remote $branch_ip "$command" 2>/dev/null)
until [[ -n "$command_output" ]]
do
sleep $wait_interval_csr
command_output=$(remote $branch_ip "$command")
done
echo "CSR is live, output to the command \"$command\" is $command_output"
}
function wait_until_hub_finished {
hub_name=$1
hub_id=$(az network vhub show -n $hub_name -g $rg --query id -o tsv)
wait_until_finished $hub_id
# Check state of connections
# echo "Hub state is $(get_vhub_state $hub_name), checking connections..."
connections=$(get_vnetcx_state $hub_name | grep Updating)
until [[ -z "$connections" ]]
do
sleep $wait_interval
connections=$(get_vnetcx_state $hub_name | grep Updating)
done
# Check state of route tables
# echo "No connections in Updating state in hub $hub_name, checking route tables..."
rts=$(get_rt_state $hub_name | grep Updating)
until [[ -z "$rts" ]]
do
sleep $wait_interval
rts=$(get_rt_state $hub_name | grep Updating)
done
}
function wait_until_gw_finished {
gw_name=$1
# It can be that we do not get a valid GW ID at the first try
echo "Finding out ID for VPN gateway $gw_name..."
gw_id=$(az network vpn-gateway show -n $gw_name -g $rg --query id -o tsv)
while [[ -z "$gw_id" ]]
do
sleep $wait_interval
gw_id=$(az network vpn-gateway show -n $gw_name -g $rg --query id -o tsv)
done
wait_until_finished $gw_id
}
# Get JSON for a hub or all hubs
function get_vhub {
hub_name=$1
uri="https://management.azure.com/subscriptions/$subscription_id/resourceGroups/$rg/providers/Microsoft.Network/virtualHubs/${hub_name}?api-version=$vwan_api_version"
if [[ -z "${hub_name}" ]]
then
az rest --method get --uri $uri | jq '.value'
else
az rest --method get --uri $uri | jq
fi
}
# Get provisioningState for a hub or all hubs
function get_vhub_state {
hub_name=$1
uri="https://management.azure.com/subscriptions/$subscription_id/resourceGroups/$rg/providers/Microsoft.Network/virtualHubs/${hub_name}?api-version=$vwan_api_version"
if [[ -z "${hub_name}" ]]
then
az rest --method get --uri $uri | jq -r '.value | map({name, provisioningState: .properties.provisioningState})'
else
az rest --method get --uri $uri | jq -r '.properties.provisioningState'
fi
}
# Print a list of virtual hubs to iterate over it
function list_vhub {
uri="https://management.azure.com/subscriptions/$subscription_id/resourceGroups/$rg/providers/Microsoft.Network/virtualHubs?api-version=$vwan_api_version"
az rest --method get --uri $uri | jq -r '.value[].name'
}
# Get JSON for a vnet connection or all vnet connections in a hub
function get_vnetcx {
hub_name=$1
cx_name=$2
uri="https://management.azure.com/subscriptions/$subscription_id/resourceGroups/$rg/providers/Microsoft.Network/virtualHubs/${hub_name}/hubVirtualNetworkConnections/${cx_name}?api-version=$vwan_api_version"
if [[ -z "${cx_name}" ]]
then
az rest --method get --uri $uri | jq '.value'
else
az rest --method get --uri $uri | jq
fi
}
# Get provisioningState for a vnet cx in a hub or all vnet cx in a hub
function get_vnetcx_state {
hub_name=$1
cx_name=$2
uri="https://management.azure.com/subscriptions/$subscription_id/resourceGroups/$rg/providers/Microsoft.Network/virtualHubs/${hub_name}/hubVirtualNetworkConnections/${cx_name}?api-version=$vwan_api_version"
if [[ -z "${cx_name}" ]]
then
az rest --method get --uri $uri | jq -r '.value | map({name, provisioningState: .properties.provisioningState})'
else
az rest --method get --uri $uri | jq -r '.properties.provisioningState'
fi
}
# List vnet connections
function list_vnetcx {
hub_name=$1
uri="https://management.azure.com/subscriptions/$subscription_id/resourceGroups/$rg/providers/Microsoft.Network/virtualHubs/${hub_name}/hubVirtualNetworkConnections/?api-version=$vwan_api_version"
az rest --method get --uri $uri | jq -r '.value[].name' 2>/dev/null
}
# Get JSON for a hubRT or all hubRTs
function get_rt {
hub_name=$1
rt_name=$2
uri="https://management.azure.com/subscriptions/$subscription_id/resourceGroups/$rg/providers/Microsoft.Network/virtualHubs/${hub_name}/hubRouteTables/${rt_name}?api-version=$vwan_api_version"
if [[ -z "${rt_name}" ]]
then
az rest --method get --uri $uri | jq '.value'
else
az rest --method get --uri $uri | jq
fi
}
# Get provisioningState for a hubRT or all hubRTs
function get_rt_state {
hub_name=$1
rt_name=$2
uri="https://management.azure.com/subscriptions/$subscription_id/resourceGroups/$rg/providers/Microsoft.Network/virtualHubs/${hub_name}/hubRouteTables/${rt_name}?api-version=$vwan_api_version"
if [[ -z "${rt_name}" ]]
then
az rest --method get --uri $uri | jq -r '.value | map({name, provisioningState: .properties.provisioningState})'
else
az rest --method get --uri $uri | jq -r '.properties.provisioningState'
fi
}
# Get provisioningState for a hubRT or all hubRTs
function list_rt {
hub_name=$1
uri="https://management.azure.com/subscriptions/$subscription_id/resourceGroups/$rg/providers/Microsoft.Network/virtualHubs/${hub_name}/hubRouteTables?api-version=$vwan_api_version"
az rest --method get --uri $uri | jq -r '.value[].name'
}
# Get JSON for a vpngw or all vpngw
function get_vpngw {
gw_name=$1
uri="https://management.azure.com/subscriptions/$subscription_id/resourceGroups/$rg/providers/Microsoft.Network/vpnGateways/${gw_name}?api-version=$vwan_api_version"
if [[ -z "${gw_name}" ]]
then
az rest --method get --uri $uri | jq '.value'
else
az rest --method get --uri $uri | jq
fi
}
# Get provisioningState for a VPN GW or all VPN GWs
function get_vpngw_state {
gw_name=$1
uri="https://management.azure.com/subscriptions/$subscription_id/resourceGroups/$rg/providers/Microsoft.Network/vpnGateways/${gw_name}?api-version=$vwan_api_version"
if [[ -z "${gw_name}" ]]
then
az rest --method get --uri $uri | jq -r '.value | map({name, provisioningState: .properties.provisioningState})'
else
az rest --method get --uri $uri | jq -r '.properties.provisioningState'
fi
}
# Get VPN gateway ID for a certain hub
function get_vpngw_id {
hub_id=$1
az network vhub show -n hub${hub_id} -g $rg --query vpnGateway.id -o tsv
}
# Get VPN gateway ID for a certain hub
function get_azfw_id {
hub_id=$1
az network firewall show -n azfw${hub_id} -g $rg --query id -o tsv
}
# Get VPN gateway ID for a certain hub
function get_vnetcx_id {
hub_id=$1
spoke_id=$2
cx_name="spoke${hub_id}${spoke_id}"
hub_name=hub${hub_id}
az network vhub connection show -n $cx_name --vhub-name $hub_name -g $rg --query id -o tsv
}
# List all VPN gateways (to iterate over them afterwards)
function list_vpngw {
gw_name=$1
uri="https://management.azure.com/subscriptions/$subscription_id/resourceGroups/$rg/providers/Microsoft.Network/vpnGateways?api-version=$vwan_api_version"
az rest --method get --uri $uri | jq -r '.value[].name'
}
# Get BGP info for a VPN GW or all VPN GWs
function get_vpngw_bgp {
gw_name=$1
uri="https://management.azure.com/subscriptions/$subscription_id/resourceGroups/$rg/providers/Microsoft.Network/vpnGateways/${gw_name}?api-version=$vwan_api_version"
if [[ -z "${gw_name}" ]]
then
az rest --method get --uri $uri | jq -r '.value | map({name, provisioningState: .properties.bgpSettings})'
else
az rest --method get --uri $uri | jq -r '.properties.bgpSettings'
fi
}
# Get VPN connections
function get_vpngw_cx {
gw_name=$1
cx_name=$2
uri="https://management.azure.com/subscriptions/$subscription_id/resourceGroups/$rg/providers/Microsoft.Network/vpnGateways/${gw_name}?api-version=$vwan_api_version"
if [[ -z "${cx_name}" ]]
then
az rest --method get --uri $uri | jq -r '.properties.connections'
else
az rest --method get --uri $uri | jq -r '.properties.connections[] | select (.name == "'$cx_name'")'
fi
}
# Get VPN connections state
function get_vpngw_cx_state {
gw_name=$1
cx_name=$2
uri="https://management.azure.com/subscriptions/$subscription_id/resourceGroups/$rg/providers/Microsoft.Network/vpnGateways/${gw_name}?api-version=$vwan_api_version"
if [[ -z "${cx_name}" ]]
then
az rest --method get --uri $uri | jq -r '.properties.connections | map({name, provisioningState: .properties.provisioningState})'
else
az rest --method get --uri $uri | jq -r '.properties.connections[] | select (.name == "'$cx_name'") | .properties.provisioningState'
fi
}
# Get JSON for a VPN site or all VPN sites
function get_vpnsite {
site_name=$1
uri="https://management.azure.com/subscriptions/$subscription_id/resourceGroups/$rg/providers/Microsoft.Network/vpnSites/${site_name}?api-version=$vwan_api_version"
if [[ -z "${site_name}" ]]
then
az rest --method get --uri $uri | jq '.value'
else
az rest --method get --uri $uri | jq
fi
}
# Get provisioningState for a VPN site or all VPN sites
function get_vpnsite_state {
site_name=$1
uri="https://management.azure.com/subscriptions/$subscription_id/resourceGroups/$rg/providers/Microsoft.Network/vpnSites/${site_name}?api-version=$vwan_api_version"
if [[ -z "${site_name}" ]]
then
az rest --method get --uri $uri | jq -r '.value | map({name, provisioningState: .properties.provisioningState})'
else
az rest --method get --uri $uri | jq -r '.properties.provisioningState'
fi
}
#################
# RT #
#################
# Create Route Table (aka hubRouteTable)
# https://docs.microsoft.com/en-us/rest/api/virtualwan/hubroutetables/createorupdate
function create_rt {
hub_name=$1
rt_name=$2
rt_label=$3
rt_json_string=$(jq -n \
"$rt_json")
rt_uri="https://management.azure.com/subscriptions/$subscription_id/resourceGroups/$rg/providers/Microsoft.Network/virtualHubs/${hub_name}/hubRouteTables/${rt_name}?api-version=$vwan_api_version"
if [[ -n "$rt_label" ]]
then
rt_json_string=$(echo $rt_json_string | jq '.properties.labels += [ "'$rt_label'" ] | {name, properties}')
fi
echo "Creating route in ${hub_name}/${rt_name}..."
wait_until_hub_finished $hub_name
az rest --method put --uri $rt_uri --body $rt_json_string >/dev/null
}
# Delete rt
function delete_rt {
hub_name=$1
rt_name=$2
rt_uri="https://management.azure.com/subscriptions/$subscription_id/resourceGroups/$rg/providers/Microsoft.Network/virtualHubs/${hub_name}/hubRouteTables/${rt_name}?api-version=$vwan_api_version"
az rest --method delete --uri $rt_uri
}
# Update vnet connection associated RT
function cx_set_ass_rt {
hub_name=$1
cx_name=$2
new_rt_name=$3
cx_uri="https://management.azure.com/subscriptions/$subscription_id/resourceGroups/$rg/providers/Microsoft.Network/virtualHubs/${hub_name}/hubVirtualNetworkConnections/${cx_name}?api-version=$vwan_api_version"
cx_json=$(az rest --method get --uri $cx_uri)
new_rt_id="/subscriptions/$subscription_id/resourceGroups/$rg/providers/Microsoft.Network/virtualHubs/${hub_name}/hubRouteTables/${new_rt_name}"
cx_json_updated=$(echo $cx_json | jq '.properties.routingConfiguration.associatedRouteTable.id = "'$new_rt_id'" | {name, properties}')
wait_until_hub_finished $hub_name
az rest --method put --uri $cx_uri --body $cx_json_updated >/dev/null
# az rest --method get --uri $cx_uri | jq '.properties.routingConfiguration.associatedRouteTable.id'
}
# Update vnet connection propagated RT
# Example: cx_set_prop_rt hub1 spoke1 redRT,defaultRouteTable
function cx_set_prop_rt {
hub_name=$1
cx_name=$2
IFS=',' read -r -a new_rt_names <<< "$3"
cx_uri="https://management.azure.com/subscriptions/$subscription_id/resourceGroups/$rg/providers/Microsoft.Network/virtualHubs/${hub_name}/hubVirtualNetworkConnections/${cx_name}?api-version=$vwan_api_version"
cx_json=$(az rest --method get --uri $cx_uri)
new_rt_ids=""
for new_rt_name in ${new_rt_names[@]}; do
new_rt_ids="${new_rt_ids}{\"id\": \"/subscriptions/$subscription_id/resourceGroups/$rg/providers/Microsoft.Network/virtualHubs/${hub_name}/hubRouteTables/${new_rt_name}\"},"
done
new_rt_ids="${new_rt_ids: : -1}" # Remove trailing comma
cx_json_updated=$(echo $cx_json | jq '.properties.routingConfiguration.propagatedRouteTables.ids = ['$new_rt_ids'] | {name, properties}')
wait_until_hub_finished $hub_name
az rest --method put --uri $cx_uri --body $cx_json_updated >/dev/null
}
# Modify propagation labels
function cx_set_prop_labels {
hub_name=$1
cx_name=$2
if [[ -n "$3" ]]
then
echo "Setting labels from connection ${hub_name}/${cx_name} to $3..."
if [ -n "$BASH_VERSION" ]; then
arr_opt=a
elif [ -n "$ZSH_VERSION" ]; then
arr_opt=A
fi
IFS=',' read -r"$arr_opt" new_labels <<< "$3"
new_labels_txt=""
for new_label in ${new_labels[@]}; do
new_labels_txt="${new_labels_txt}\"${new_label}\","
done
new_labels_txt="${new_labels_txt: : -1}" # Remove trailing comma
else
echo "Deleting labels from connection ${hub_name}/${cx_name}..."
new_labels_txt=" "
fi
cx_uri="https://management.azure.com/subscriptions/$subscription_id/resourceGroups/$rg/providers/Microsoft.Network/virtualHubs/${hub_name}/hubVirtualNetworkConnections/${cx_name}?api-version=$vwan_api_version"
cx_json=$(az rest --method get --uri $cx_uri)
cx_json_updated=$(echo $cx_json | jq '.properties.routingConfiguration.propagatedRouteTables.labels = ['${new_labels_txt}'] | {name, properties}')
wait_until_hub_finished $hub_name
# Check: if hub is Failed, we can try to reset it
# We dont do this inside of the wait_until_hub_finished function because we could have infinite recursion
hub_state=$(get_vhub_state $hub_name)
if [[ "$hub_state" == "Failed" ]]
then
echo "Hub $hub_name is Failed, trying to fix it with a reset"
reset_vhub "$hub_name"
wait_until_hub_finished "$hub_name"
fi
# Check: if hub is still Failed, do not do anything
hub_state=$(get_vhub_state "$hub_name")
if [[ "$hub_state" == "Succeeded" ]]
then
az rest --method put --uri "$cx_uri" --body "$cx_json_updated" >/dev/null
else
echo "Hub $hub_name is $hub_state and could not fix it"
fi
}
# Modify propagated RT for VPN connection
# RT can be given as rt_name or hub_name/rt_name
# Example:
# vpncx_set_prop_rt 1 branch1 hub1/defaultRouteTable
function vpncx_set_prop_rt {
hub_id=$1
cx_name=$2
gw_id=$(az network vhub show -n hub${hub_id} -g $rg --query vpnGateway.id -o tsv)
gw_name=$(echo $gw_id | cut -d/ -f 9)
echo "Setting routing for VPN connection $cx_name in gateway $gw_name..."
uri="https://management.azure.com/subscriptions/$subscription_id/resourceGroups/$rg/providers/Microsoft.Network/vpnGateways/${gw_name}/vpnConnections/${cx_name}?api-version=$vwan_api_version"
if [ -n "$BASH_VERSION" ]; then
arr_opt=a
elif [ -n "$ZSH_VERSION" ]; then
arr_opt=A
fi
IFS=',' read -r"$arr_opt" new_rt_names <<< "$3"
hub_id=$(az network vpn-gateway show -n $gw_name -g $rg --query 'virtualHub.id' -o tsv)
hub_name=$(echo $hub_id | cut -d/ -f 9)
new_rt_ids=""
for new_proprt_name in "${new_rt_names[@]}"
do
# support both formats: hub/rt and rt (defaults to local hub)
proprt_hub_name=$(echo $new_proprt_name | cut -d/ -f 1)
proprt_rt_name=$(echo $new_proprt_name | cut -d/ -f 2)
if [[ -z "$proprt_rt_name" ]]
then
proprt_hub_name=$hub_name
proprt_rt_name=$new_proprt_name
fi
new_rt_ids="${new_rt_ids}{\"id\": \"/subscriptions/$subscription_id/resourceGroups/$rg/providers/Microsoft.Network/virtualHubs/${proprt_hub_name}/hubRouteTables/${proprt_rt_name}\"},"
done
new_rt_ids="${new_rt_ids: : -1}" # Remove trailing comma
vpncx_json=$(az rest --method get --uri $uri)
vpncx_json=$(echo $vpncx_json | jq '{name, properties}')
# Remove unneeded attributes
vpncx_json=$(echo $vpncx_json | jq 'del(.properties.vpnLinkConnections[].resourceGroup)')
vpncx_json=$(echo $vpncx_json | jq 'del(.properties.vpnLinkConnections[].etag)')
vpncx_json=$(echo $vpncx_json | jq 'del(.properties.vpnLinkConnections[].type)')
# Update routing config
# echo "Setting route table ids to $new_rt_ids..."
vpncx_json_updated=$(echo $vpncx_json | jq '.properties.routingConfiguration.propagatedRouteTables.ids=['"$new_rt_ids"']')
# Optionally, set labels
if [[ -n "$4" ]]
then
IFS=',' read -r"$arr_opt" new_labels <<< "$4"
new_labels_txt=""
for new_label in "${new_labels[@]}"; do
new_labels_txt="${new_labels_txt}\"${new_label}\","
done
new_labels_txt="${new_labels_txt: : -1}" # Remove trailing comma
# echo "Setting labels to $new_labels_txt..."
vpncx_json_updated=$(echo $vpncx_json_updated | jq '.properties.routingConfiguration.propagatedRouteTables.labels=['"$new_labels_txt"']')
fi
# Wait for the vpn gw to be Suceeded
wait_until_gw_finished $gw_name
# Send JSON
az rest --method put --uri $uri --body $vpncx_json_updated >/dev/null
}
# Using vpncx URI
# https://docs.microsoft.com/en-us/rest/api/virtualwan/vpnconnections/createorupdate
function vpncx_set_prop_labels {
gw_name=$1
cx_name=$2
uri="https://management.azure.com/subscriptions/$subscription_id/resourceGroups/$rg/providers/Microsoft.Network/vpnGateways/${gw_name}/vpnConnections/${cx_name}?api-version=$vwan_api_version"
hub_id=$(az network vpn-gateway show -n $gw_name -g $rg --query 'virtualHub.id' -o tsv)
hub_name=$(echo $hub_id | cut -d/ -f 9)
if [[ -n "$3" ]]
then
if [ -n "$BASH_VERSION" ]; then
arr_opt=a
elif [ -n "$ZSH_VERSION" ]; then
arr_opt=A
fi
IFS=',' read -r"$arr_opt" new_labels <<< "$3"
new_labels_txt=""
for new_label in ${new_labels[@]}; do
new_labels_txt="${new_labels_txt}\"${new_label}\","
done
new_labels_txt="${new_labels_txt: : -1}" # Remove trailing comma
else
new_labels_txt=""
fi
# Get current JSON
vpncx_json=$(az rest --method get --uri $uri)
# Remove unneeded attributes
vpncx_json=$(echo $vpncx_json | jq 'del(.properties.vpnLinkConnections[].resourceGroup)')
vpncx_json=$(echo $vpncx_json | jq 'del(.properties.vpnLinkConnections[].etag)')
vpncx_json=$(echo $vpncx_json | jq 'del(.properties.vpnLinkConnections[].type)')
# Update routing config
vpncx_json_updated=$(echo $vpncx_json | jq '.properties.routingConfiguration.propagatedRouteTables.labels=['"$new_labels_txt"'] | {name, properties}')
# Wait for the vpn gw to be Suceeded
wait_until_gw_finished $gw_name
# PUT new JSON
az rest --method put --uri $uri --body $vpncx_json_updated >/dev/null
}
# Update vnet connection associated and propagated RT at the same time
# example: cx_set_rt hub1 spoke1 redRT redRT,defaultRouteTable
function cx_set_rt {
hub_name=$1
cx_name=$2
new_assrt_name=$3
if [ -n "$BASH_VERSION" ]; then
arr_opt=a
elif [ -n "$ZSH_VERSION" ]; then
arr_opt=A
fi
IFS=',' read -r"$arr_opt" new_proprt_names <<< "$4"
echo "Setting connection $cx_name associated route table to $new_assrt_name, propagated route tables to $new_proprt_names" # DEBUG
cx_uri="https://management.azure.com/subscriptions/$subscription_id/resourceGroups/$rg/providers/Microsoft.Network/virtualHubs/${hub_name}/hubVirtualNetworkConnections/${cx_name}?api-version=$vwan_api_version"
cx_json=$(az rest --method get --uri $cx_uri)
new_assrt_id="/subscriptions/$subscription_id/resourceGroups/$rg/providers/Microsoft.Network/virtualHubs/${hub_name}/hubRouteTables/${new_assrt_name}"
new_proprt_ids=""
for new_proprt_name in ${new_proprt_names[@]}; do
# support both formats: hub/rt and rt (defaults to local hub)
proprt_hub_name=$(echo $new_proprt_name | cut -d/ -f 1)
proprt_rt_name=$(echo $new_proprt_name | cut -d/ -f 2)
if [[ -z "$proprt_rt_name" ]]
then
proprt_hub_name=$hub_name
proprt_rt_name=$new_proprt_name
fi
new_proprt_ids="${new_proprt_ids}{\"id\": \"/subscriptions/$subscription_id/resourceGroups/$rg/providers/Microsoft.Network/virtualHubs/${proprt_hub_name}/hubRouteTables/${proprt_rt_name}\"},"
done
new_proprt_ids="${new_proprt_ids: : -1}" # Remove trailing comma
cx_json_updated=$(echo $cx_json | jq '.properties.routingConfiguration.associatedRouteTable.id = "'$new_assrt_id'" | .properties.routingConfiguration.propagatedRouteTables.ids = ['$new_proprt_ids'] | {name, properties}')
if [[ -n "$5" ]]
then
IFS=',' read -r"$arr_opt" new_labels <<< "$5"
new_labels_txt=""
for new_label in ${new_labels[@]}; do
new_labels_txt="${new_labels_txt}\"${new_label}\","
done
new_labels_txt="${new_labels_txt: : -1}" # Remove trailing comma
cx_json_updated=$(echo $cx_json_updated | jq '.properties.routingConfiguration.propagatedRouteTables.labels = ['${new_labels_txt}'] | {name, properties}')
fi
wait_until_hub_finished $hub_name
az rest --method put --uri $cx_uri --body $cx_json_updated >/dev/null
}
# Add routes to RT
# https://docs.microsoft.com/en-us/rest/api/virtualwan/hubroutetables/createorupdate#hubroute
function rt_add_route {
hub_name=hub$1
rt_name=$2
prefix=$3
nexthop=$4
echo "Adding static route for ${prefix} to route table ${hub_name}/${rt_name}"
rt_uri="https://management.azure.com/subscriptions/$subscription_id/resourceGroups/$rg/providers/Microsoft.Network/virtualHubs/${hub_name}/hubRouteTables/${rt_name}?api-version=$vwan_api_version"
rt_json_current=$(az rest --method get --uri $rt_uri)
# type (next hop): CIDR, resourceId, Service
# prefixes: comma-separated prefix list
new_route_json_string=$(jq -n \
--arg name "route$RANDOM" \
--arg type "ResourceId" \
--arg prefixes "$prefix" \
--arg nexthop "$nexthop" \
"$route_json")
rt_json_updated=$(echo $rt_json_current | jq '.properties.routes += [ '$new_route_json_string' ] | {name, properties}')
wait_until_hub_finished $hub_name
# Check: if hub is Failed, we can try to reset it
# We dont do this inside of the wait_until_hub_finished function because we could have infinite recursion
hub_state=$(get_vhub_state $hub_name)
if [[ "$hub_state" == "Failed" ]]
then
echo "Hub $hub_name is Failed, trying to fix it with a reset"
reset_vhub "$hub_name"
wait_until_hub_finished "$hub_name"
fi
# Check: if hub is still Failed, do not do anything
hub_state=$(get_vhub_state "$hub_name")
if [[ "$hub_state" == "Succeeded" ]]
then
az rest --method put --uri $rt_uri --body $rt_json_updated >/dev/null # PUT
else
echo "Hub $hub_name is $hub_state and could not fix it"
fi
}
# Delete all routes from RT
function rt_delete_routes {
hub_name=$1
rt_name=$2
echo "Deleting all routes from route table ${hub_name}/${rt_name}"
rt_uri="https://management.azure.com/subscriptions/$subscription_id/resourceGroups/$rg/providers/Microsoft.Network/virtualHubs/${hub_name}/hubRouteTables/${rt_name}?api-version=$vwan_api_version"
rt_json_current=$(az rest --method get --uri $rt_uri)
rt_json_updated=$(echo $rt_json_current | jq '.properties.routes = [] | {name, properties}')
wait_until_hub_finished $hub_name
az rest --method put --uri $rt_uri --body $rt_json_updated >/dev/null # PUT
}
# Add routes to vnet conection
# https://docs.microsoft.com/en-us/rest/api/virtualwan/hubvirtualnetworkconnections/createorupdate#staticroute
# Example: cx_add_routes hub1 spoke1 192.168.0.0/16 172.21.10.68
function cx_add_routes {
hub_name=hub$1
cx_name=$2
prefix=$3
nexthop=$4
echo "Adding route for $prefix to $nexthop in connection ${hub_name}/${cx_name}..."
cx_uri="https://management.azure.com/subscriptions/$subscription_id/resourceGroups/$rg/providers/Microsoft.Network/virtualHubs/${hub_name}/hubVirtualNetworkConnections/${cx_name}?api-version=$vwan_api_version"
cx_json=$(az rest --method get --uri $cx_uri)
# prefixes: comma-separated prefix list
new_route_json_string=$(jq -n \
--arg name "route$RANDOM" \
--arg prefixes "$prefix" \
--arg nexthop "$nexthop" \
"$cxroute_json")
existing_routes=$(echo $cx_json | jq '.properties.routingConfiguration.vnetRoutes.staticRoutes[]')
if [ -z "${existing_routes}" ]
then
new_routes=${new_route_json_string}
else
new_routes=${existing_routes},${new_route_json_string}
fi
cx_json_updated=$(echo $cx_json | jq '.properties.routingConfiguration.vnetRoutes.staticRoutes = ['$new_routes'] | {name, properties}')
wait_until_hub_finished $hub_name
az rest --method put --uri $cx_uri --body $cx_json_updated >/dev/null # PUT
}
# Delete all routes from vnet cx
function cx_delete_routes {
hub_name=$1
cx_name=$2
cx_uri="https://management.azure.com/subscriptions/$subscription_id/resourceGroups/$rg/providers/Microsoft.Network/virtualHubs/${hub_name}/hubVirtualNetworkConnections/${cx_name}?api-version=$vwan_api_version"
cx_json=$(az rest --method get --uri $cx_uri)
cx_json_updated=$(echo $cx_json | jq '.properties.routingConfiguration.vnetRoutes.staticRoutes = [] | {name, properties}')
wait_until_hub_finished $hub_name
az rest --method put --uri $cx_uri --body $cx_json_updated >/dev/null
# az rest --method get --uri $cx_uri | jq '.properties.routingConfiguration.vnetRoutes.staticRoutes' # GET
}
# Delete all labels from vnet cx
function cx_delete_labels {
hub_name=$1
cx_name=$2
cx_uri="https://management.azure.com/subscriptions/$subscription_id/resourceGroups/$rg/providers/Microsoft.Network/virtualHubs/${hub_name}/hubVirtualNetworkConnections/${cx_name}?api-version=$vwan_api_version"
cx_json=$(az rest --method get --uri $cx_uri)
cx_json_updated=$(echo $cx_json | jq '.properties.routingConfiguration.propagatedRouteTables.labels = [] | {name, properties}')
wait_until_hub_finished $hub_name
az rest --method put --uri $cx_uri --body $cx_json_updated # PUT
# az rest --method get --uri $cx_uri | jq '.properties.routingConfiguration.propagatedRouteTables.labels' # GET
}
# Add label to route table
# https://docs.microsoft.com/en-us/rest/api/virtualwan/hubroutetables/createorupdate#hubroute
function rt_add_label {
hub_name=$1
rt_name=$2
new_label=$3
wait_until_hub_finished $hub_name
rt_uri="https://management.azure.com/subscriptions/$subscription_id/resourceGroups/$rg/providers/Microsoft.Network/virtualHubs/${hub_name}/hubRouteTables/${rt_name}?api-version=$vwan_api_version"
rt_json_current=$(az rest --method get --uri $rt_uri)
rt_json_updated=$(echo $rt_json_current | jq '.properties.labels += [ "'$new_label'" ] | {name, properties}')
az rest --method put --uri $rt_uri --body $rt_json_updated # PUT
}
# Delete all labels
function rt_delete_labels {
hub_name=$1
rt_name=$2
rt_uri="https://management.azure.com/subscriptions/$subscription_id/resourceGroups/$rg/providers/Microsoft.Network/virtualHubs/${hub_name}/hubRouteTables/${rt_name}?api-version=$vwan_api_version"
rt_json_current=$(az rest --method get --uri $rt_uri)
rt_json_updated=$(echo $rt_json_current | jq '.properties.labels = [] | {name, properties}')
wait_until_hub_finished $hub_name
az rest --method put --uri $rt_uri --body $rt_json_updated # PUT
}
#################
# Reset stuff #
#################
# reset vhub
function reset_vhub {
hub_name=$1
hub_uri="https://management.azure.com/subscriptions/$subscription_id/resourceGroups/$rg/providers/Microsoft.Network/virtualHubs/${hub_name}?api-version=$vwan_api_version"
hub_json_current=$(az rest --method get --uri $hub_uri)
hub_json_updated=$(echo $hub_json_current | jq '{name, location, properties}')
az rest --method put --uri $hub_uri --body $hub_json_updated >/dev/null
}
# reset vhub
function reset_rt {
hub_name=$1
rt_name=$2
rt_uri="https://management.azure.com/subscriptions/$subscription_id/resourceGroups/$rg/providers/Microsoft.Network/virtualHubs/${hub_name}/hubRouteTables/${rt_name}?api-version=$vwan_api_version"
rt_json_current=$(az rest --method get --uri $rt_uri)
rt_json_updated=$(echo $rt_json_current | jq '{name, location, properties}')
az rest --method put --uri $rt_uri --body $rt_json_updated >/dev/null
}
# reset vnet cx
function reset_vhub_cx {
hub_name=$1
cx_name=$2
cx_uri="https://management.azure.com/subscriptions/$subscription_id/resourceGroups/$rg/providers/Microsoft.Network/virtualHubs/${hub_name}/hubVirtualNetworkConnections/${cx_name}?api-version=$vwan_api_version"
cx_json_current=$(az rest --method get --uri $cx_uri) # GET
cx_json_updated=$(echo $cx_json_current | jq '{name, location, properties}')
# If you delete, you should wait until the delete operation finishes before sending the PUT, hence commented out
# az rest --method delete --uri $cx_uri # DELETE
az rest --method put --uri $cx_uri --body $cx_json_updated >/dev/null
}
# reset vpngw - NOT WORKING!
function reset_vpngw {
gw_name=$1
gw_uri="https://management.azure.com/subscriptions/$subscription_id/resourceGroups/$rg/providers/Microsoft.Network/vpnGateways/${gw_name}?api-version=$vwan_api_version"
gw_json_current=$(az rest --method get --uri $gw_uri)
gw_json_updated=$(echo $gw_json_current | jq '{name, location, properties}')
az rest --method put --uri $gw_uri --body $gw_json_updated
}
##################
# Summary info #
##################
# Get label info
function get_cx_labels {
hub_name=$1
cx_name=$2
cx_uri="https://management.azure.com/subscriptions/$subscription_id/resourceGroups/$rg/providers/Microsoft.Network/virtualHubs/${hub_name}/hubVirtualNetworkConnections/${cx_name}?api-version=$vwan_api_version"
az rest --method get --uri $cx_uri | jq -r '.properties.routingConfiguration.propagatedRouteTables.labels[]' | paste -sd, - 2>/dev/null
}
function get_rt_labels {
hub_name=$1
rt_name=$2
rt_uri="https://management.azure.com/subscriptions/$subscription_id/resourceGroups/$rg/providers/Microsoft.Network/virtualHubs/${hub_name}/hubRouteTables/${rt_name}?api-version=$vwan_api_version"
az rest --method get --uri $rt_uri | jq -r '.properties.labels[]' | paste -sd, - 2>/dev/null
}
function get_rt_routes {
hub_name=$1
rt_name=$2
rt_uri="https://management.azure.com/subscriptions/$subscription_id/resourceGroups/$rg/providers/Microsoft.Network/virtualHubs/${hub_name}/hubRouteTables/${rt_name}?api-version=$vwan_api_version"
az rest --method get --uri $rt_uri | jq -r '.properties.routes[] | .destinations[],.nextHop' | paste -sd, - 2>/dev/null
}
function get_vpncx_labels {
gw_name=$1
cx_name=$2
gw_uri="https://management.azure.com/subscriptions/$subscription_id/resourceGroups/$rg/providers/Microsoft.Network/vpnGateways/${gw_name}?api-version=$vwan_api_version"
az rest --method get --uri $gw_uri | jq -r '.properties.connections[] | select (.name == "'$cx_name'") | .properties.routingConfiguration.propagatedRouteTables.labels[]' | paste -sd, - 2>/dev/null
}
function get_vpncx {
gw_name=$1
cx_name=$2
gw_uri="https://management.azure.com/subscriptions/$subscription_id/resourceGroups/$rg/providers/Microsoft.Network/vpnGateways/${gw_name}?api-version=$vwan_api_version"
az rest --method get --uri $gw_uri | jq -r '.properties.connections[] | select (.name == "'$cx_name'")' 2>/dev/null
}
function list_vpncx {
gw_name=$1
gw_uri="https://management.azure.com/subscriptions/$subscription_id/resourceGroups/$rg/providers/Microsoft.Network/vpnGateways/${gw_name}?api-version=$vwan_api_version"
az rest --method get --uri $gw_uri | jq -r '.properties.connections[].name' 2>/dev/null
}
function labels {
# Vnet connections
hubs=$(list_vhub)
while IFS= read -r hub_name; do
vnet_cxs=$(list_vnetcx $hub_name)
if [[ -n "$vnet_cxs" ]]
then
while IFS= read -r vnetcx_name; do
echo "${hub_name}/${vnetcx_name} connection: $(get_cx_labels $hub_name $vnetcx_name)"
done <<< "$vnet_cxs"
else
echo "No vnet connections in hub $hub_name"
fi
done <<< "$hubs"
# VPN connections
vpngws=$(list_vpngw)
while IFS= read -r gw_name; do
vpn_cxs=$(list_vpncx $gw_name)
if [[ -n "$vpn_cxs" ]]
then
while IFS= read -r vpncx_name; do
echo "${gw_name}/${vpncx_name} connection: $(get_vpncx_labels $gw_name $vpncx_name)"
done <<< "$vpn_cxs"
else
echo "No VPN connections in gateway $gw_name"
fi
done <<< "$vpngws"
# Route Tables
while IFS= read -r hub_name; do
rts=$(list_rt $hub_name)
if [[ -n "$rts" ]]
then
while IFS= read -r rt_name; do
echo "${hub_name}/${rt_name}: $(get_rt_labels $hub_name $rt_name)"
done <<< "$rts"
else
echo "No route tables in hub $hub_name"
fi
done <<< "$hubs"
}
function state {
# Hubs
hubs=$(list_vhub)
while IFS= read -r hub_name; do
echo "${hub_name}: $(get_vhub_state $hub_name)"
# Vnet connections
vnet_cxs=$(list_vnetcx $hub_name)
if [[ -n "$vnet_cxs" ]]
then
while IFS= read -r vnetcx_name; do
echo "${hub_name}/${vnetcx_name} connection: $(get_vnetcx_state $hub_name $vnetcx_name)"
done <<< "$vnet_cxs"
else
echo "No vnet connections in hub $hub_name"
fi
# Route Tables
rts=$(list_rt $hub_name)
if [[ -n "$rts" ]]
then
while IFS= read -r rt_name; do
echo "${hub_name}/${rt_name}: $(get_rt_state $hub_name $rt_name)"
done <<< "$rts"
else
echo "No route tables in hub $hub_name"
fi
done <<< "$hubs"
# VPN connections
vpngws=$(list_vpngw)
while IFS= read -r gw_name; do
echo "${gw_name}: $(get_vpngw_state $gw_name)"
vpn_cxs=$(list_vpncx $gw_name)
if [[ -n "$vpn_cxs" ]]
then
while IFS= read -r vpncx_name; do
echo "${gw_name}/${vpncx_name} connection: $(get_vpngw_cx_state $gw_name $vpncx_name)"
done <<< "$vpn_cxs"
else
echo "No VPN connections in gateway $gw_name"
fi
done <<< "$vpngws"
}
# Get associated/propagated routing tables
function print_routing {
routing=$1
assrt=$(echo $routing | jq -r '.associatedRouteTable.id')
assrt_hub=$(echo $assrt | cut -d/ -f 9)
assrt_name=$(echo $assrt | cut -d/ -f 11)
proprt=$(echo $routing | jq -r '.propagatedRouteTables.ids[].id')
proprt_txt=""
while IFS= read -r proprt_id; do
proprt_hub=$(echo $proprt_id | cut -d/ -f 9)
proprt_name=$(echo $proprt_id | cut -d/ -f 11)
if [[ -n "$proprt_txt" ]]
then
proprt_txt+=", "
fi
proprt_txt+=${proprt_hub}/${proprt_name}
done <<< "$proprt"
proplbls=$(echo $routing | jq -r '.propagatedRouteTables.labels[]')
proplbl_txt=""
while IFS= read -r label; do
if [[ -n "$proplbl_txt" ]]
then
proplbl_txt+=", "
fi
proplbl_txt+=${label}
done <<< "$proplbls"
echo " * Associated: ${assrt_hub}/${assrt_name}"
echo " * Propagated: $proprt_txt - Labels: ${proplbl_txt}"
}
function get_cx_routing {
hub_name=$1
cx_name=$2
cx_uri="https://management.azure.com/subscriptions/$subscription_id/resourceGroups/$rg/providers/Microsoft.Network/virtualHubs/${hub_name}/hubVirtualNetworkConnections/${cx_name}?api-version=$vwan_api_version"
routing=$(az rest --method get --uri $cx_uri | jq -r '.properties.routingConfiguration')
echo "$hub_name / $cx_name"
print_routing $routing
}
function get_vpncx_routing {
gw_name=$1
cx_name=$2
gw_uri="https://management.azure.com/subscriptions/$subscription_id/resourceGroups/$rg/providers/Microsoft.Network/vpnGateways/${gw_name}?api-version=$vwan_api_version"
routing=$(az rest --method get --uri $gw_uri | jq -r '.properties.connections[] | select (.name == "'$cx_name'") | .properties.routingConfiguration')
echo "$gw_name / $cx_name"
print_routing $routing
}
function routing {
# Vnet connections
hubs=$(list_vhub)
while IFS= read -r hub_name; do
vnet_cxs=$(list_vnetcx $hub_name)
if [[ -n "$vnet_cxs" ]]
then
while IFS= read -r vnetcx_name; do
get_cx_routing $hub_name $vnetcx_name
done <<< "$vnet_cxs"
else
echo "No vnet connections in hub $hub_name"
fi
done <<< "$hubs"
# VPN connections
vpngws=$(list_vpngw)
while IFS= read -r gw_name; do
vpn_cxs=$(list_vpncx $gw_name)
if [[ -n "$vpn_cxs" ]]
then
while IFS= read -r vpncx_name; do
get_vpncx_routing $gw_name $vpncx_name
done <<< "$vpn_cxs"
else
echo "No VPN connections in gateway $gw_name"
fi
done <<< "$vpngws"
# Route tables
get_static
}
# Get static routes in route table
function get_rt_static {
hub_name=$1
rt_name=$2
uri="https://management.azure.com/subscriptions/$subscription_id/resourceGroups/$rg/providers/Microsoft.Network/virtualHubs/${hub_name}/hubRouteTables/${rt_name}?api-version=$vwan_api_version"
routes=$(az rest --method get --uri $uri | jq '.properties.routes')
srch="/subscriptions/$subscription_id/resourceGroups/$rg/providers/Microsoft.Network/virtualHubs/"
routes=$(echo $routes | awk -v srch="$srch" '{sub(srch,"",$0); print$0}')
srch="hubVirtualNetworkConnections/"
routes=$(echo $routes | awk -v srch="$srch" '{sub(srch,"",$0); print$0}')
srch="/subscriptions/$subscription_id/resourceGroups/$rg/providers/Microsoft.Network/azureFirewalls/"
routes=$(echo $routes | awk -v srch="$srch" '{sub(srch,"",$0); print$0}')
routes=$(echo $routes | jq -r '.[] | " * \(.name)\t\(.destinations[])\t\(.nextHop)"')
if [[ -n $routes ]]
then
echo $routes
else
echo " * No static routes"
fi
}
function get_static {
# Hubs
hubs=$(list_vhub)
while IFS= read -r hub_name; do