sonic-buildimage/dockers/docker-sonic-telemetry/telemetry.sh
Zain Budhwani 4f5735bc0a Fix telemetry.sh passing in null as log level value (#14303)
#### Why I did it

Bug in script that was passing in null as log level value if missing from config_db

#### How I did it

Added more robust conditional statement

#### How to verify it

1) Remove log_level from config db
2) config reload -y
3) telemetry should not crash
2023-03-30 00:09:40 +00:00

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#!/usr/bin/env bash
EXIT_TELEMETRY_VARS_FILE_NOT_FOUND=1
TELEMETRY_VARS_FILE=/usr/share/sonic/templates/telemetry_vars.j2
if [ ! -f "$TELEMETRY_VARS_FILE" ]; then
echo "Telemetry vars template file not found"
exit $EXIT_TELEMETRY_VARS_FILE_NOT_FOUND
fi
# Try to read telemetry and certs config from ConfigDB.
# Use default value if no valid config exists
TELEMETRY_VARS=$(sonic-cfggen -d -t $TELEMETRY_VARS_FILE)
TELEMETRY_VARS=${TELEMETRY_VARS//[\']/\"}
X509=$(echo $TELEMETRY_VARS | jq -r '.x509')
GNMI=$(echo $TELEMETRY_VARS | jq -r '.gnmi')
CERTS=$(echo $TELEMETRY_VARS | jq -r '.certs')
TELEMETRY_ARGS=" -logtostderr"
export CVL_SCHEMA_PATH=/usr/sbin/schema
if [ -n "$CERTS" ]; then
SERVER_CRT=$(echo $CERTS | jq -r '.server_crt')
SERVER_KEY=$(echo $CERTS | jq -r '.server_key')
if [ -z $SERVER_CRT ] || [ -z $SERVER_KEY ]; then
TELEMETRY_ARGS+=" --insecure"
else
TELEMETRY_ARGS+=" --server_crt $SERVER_CRT --server_key $SERVER_KEY "
fi
CA_CRT=$(echo $CERTS | jq -r '.ca_crt')
if [ ! -z $CA_CRT ]; then
TELEMETRY_ARGS+=" --ca_crt $CA_CRT"
fi
elif [ -n "$X509" ]; then
SERVER_CRT=$(echo $X509 | jq -r '.server_crt')
SERVER_KEY=$(echo $X509 | jq -r '.server_key')
if [ -z $SERVER_CRT ] || [ -z $SERVER_KEY ]; then
TELEMETRY_ARGS+=" --insecure"
else
TELEMETRY_ARGS+=" --server_crt $SERVER_CRT --server_key $SERVER_KEY "
fi
CA_CRT=$(echo $X509 | jq -r '.ca_crt')
if [ ! -z $CA_CRT ]; then
TELEMETRY_ARGS+=" --ca_crt $CA_CRT"
fi
else
TELEMETRY_ARGS+=" --noTLS"
fi
# If no configuration entry exists for TELEMETRY, create one default port
if [ -z "$GNMI" ]; then
PORT=8080
else
PORT=$(echo $GNMI | jq -r '.port')
fi
TELEMETRY_ARGS+=" --port $PORT"
CLIENT_AUTH=$(echo $GNMI | jq -r '.client_auth')
if [ -z $CLIENT_AUTH ] || [ $CLIENT_AUTH == "false" ]; then
TELEMETRY_ARGS+=" --allow_no_client_auth"
fi
LOG_LEVEL=$(echo $GNMI | jq -r '.log_level')
if [[ $LOG_LEVEL =~ ^[0-9]+$ ]]; then
TELEMETRY_ARGS+=" -v=$LOG_LEVEL"
else
TELEMETRY_ARGS+=" -v=2"
fi
exec /usr/sbin/telemetry ${TELEMETRY_ARGS}