2cc98b4bac
* [platform] Add Support For Environment Variable This PR adds the ability to read environment file from /etc/sonic. the file contains immutable SONiC config attributes such as platform, hwsku, version, device_type. The aim is to minimize calls being made into sonic-cfggen during boot time. singed-off-by: Tamer Ahmed <tamer.ahmed@microsoft.com>
135 lines
4.3 KiB
Bash
Executable File
135 lines
4.3 KiB
Bash
Executable File
#!/bin/bash
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reload_minigraph()
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{
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echo "Reloading minigraph..."
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config load_minigraph -y -n
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config save -y
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}
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# read SONiC immutable variables
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[ -f /etc/sonic/sonic-environment ] && . /etc/sonic/sonic-environment
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if [ ! -f /etc/sonic/updategraph.conf ]; then
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echo "No updategraph.conf found, generating a default one."
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echo "enabled=false" >/etc/sonic/updategraph.conf
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fi
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. /etc/sonic/updategraph.conf
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if [ "$enabled" = "reload_only" ]; then
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reload_minigraph
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sed -i "/enabled=/d" /etc/sonic/updategraph.conf
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echo "enabled=false" >> /etc/sonic/updategraph.conf
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exit 0
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fi
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if [ "$enabled" != "true" ]; then
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echo "Disabled in updategraph.conf. Skipping graph update."
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exit 0
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fi
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# If ZTP package is available and enabled, use ZTP to download and load the graph.
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if [ -e /usr/bin/ztp ] && [ "$(ztp status -c)" != "0:DISABLED" ]; then
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echo "ZTP is available and enabled. Skipping graph update."
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exit 0
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fi
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ACL_URL=$acl_src
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if [ "$src" = "dhcp" ]; then
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# Enable dhcp client on management port eth0
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/sbin/dhclient -4 -v -pf /run/dhclient.eth0.pid -lf /var/lib/dhcp/dhclient.eth0.leases -I -df /var/lib/dhcp/dhclient6.eth0.leases eth0 &
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disown
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while [ ! -f /tmp/dhcp_graph_url ]; do
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echo "Waiting for DHCP response..."
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sleep 1
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done
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if [ "`cat /tmp/dhcp_graph_url`" = "N/A" ]; then
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echo "No graph_url option in DHCP response. Skipping graph update and generating an empty configuration."
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PLATFORM=${PLATFORM:-`sonic-cfggen -H -v DEVICE_METADATA.localhost.platform`}
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if [ -f /etc/sonic/minigraph.xml ]; then
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sonic-cfggen -H -m /etc/sonic/minigraph.xml --preset empty > /tmp/device_meta.json
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else
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PRESET=(`head -n 1 /usr/share/sonic/device/$PLATFORM/default_sku`)
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sonic-cfggen -H -k ${PRESET[0]} --preset empty > /tmp/device_meta.json
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fi
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if [ -f /etc/sonic/init_cfg.json ]; then
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sonic-cfggen -j /tmp/device_meta.json -j /etc/sonic/init_cfg.json --print-data > /etc/sonic/config_db.json
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else
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cp -f /tmp/device_meta.json /etc/sonic/config_db.json
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fi
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sonic-db-cli CONFIG_DB FLUSHDB
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sonic-cfggen -j /etc/sonic/config_db.json --write-to-db
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sonic-db-cli CONFIG_DB SET "CONFIG_DB_INITIALIZED" "1"
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if [ "$dhcp_as_static" = "true" ]; then
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sed -i "/enabled=/d" /etc/sonic/updategraph.conf
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echo "enabled=false" >> /etc/sonic/updategraph.conf
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fi
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exit 0
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fi
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HOSTNAME=`hostname -s`
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GRAPH_URL=`sonic-cfggen -t /tmp/dhcp_graph_url -a "{\"hostname\": \"$HOSTNAME\"}"`
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URL_REGEX='^(https?|ftp|file)://[-A-Za-z0-9\+&@#/%?=~_|!:,.;]*[-A-Za-z0-9\+&@#/%=~_|]$'
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if [[ ! $GRAPH_URL =~ $URL_REGEX ]]; then
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echo "\"$GRAPH_URL\" is not a valid url. Skipping graph update."
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exit 0
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fi
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if [ "$dhcp_as_static" = "true" ]; then
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sed -i "/src=/d" /etc/sonic/updategraph.conf
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echo "src=\"$GRAPH_URL\"" >> /etc/sonic/updategraph.conf
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fi
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if [ -f /tmp/dhcp_acl_url ]; then
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ACL_URL=`sonic-cfggen -t /tmp/dhcp_acl_url -a "{\"hostname\": \"$HOSTNAME\"}"`
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if [[ ! $ACL_URL =~ $URL_REGEX ]]; then
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echo "\"$ACL_URL\" is not a valid url. Skipping acl update."
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ACL_URL=""
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fi
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if [ "$dhcp_as_static" = "true" ]; then
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sed -i "/acl_src=/d" /etc/sonic/updategraph.conf
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echo "acl_src=\"$ACL_URL\"" >> /etc/sonic/updategraph.conf
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fi
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fi
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else
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GRAPH_URL=$src
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fi
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if [ -f /etc/sonic/minigraph.xml ]; then
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echo "Renaming minigraph.xml to minigraph.old"
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mv /etc/sonic/minigraph.xml /etc/sonic/minigraph.old
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fi
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echo "Getting minigraph from $GRAPH_URL"
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while true; do
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curl -f $GRAPH_URL -o /etc/sonic/minigraph.xml --connect-timeout 15 && break
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sleep 5
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done
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if [ -n "$ACL_URL" ]; then
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if [ -f /etc/sonic/acl.json ]; then
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echo "Renaming acl.json to acl.json.old"
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mv /etc/sonic/acl.json /etc/sonic/acl.json.old
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fi
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echo "Getting ACL config from $ACL_URL"
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while true; do
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curl -f $ACL_URL -o /etc/sonic/acl.json --connect-timeout 15 && break
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sleep 5
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done
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else
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echo "Skip ACL config download."
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fi
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reload_minigraph
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# Mark as disabled after graph is successfully downloaded
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sed -i "/enabled=/d" /etc/sonic/updategraph.conf
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echo "enabled=false" >> /etc/sonic/updategraph.conf
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