Updated randomized ssm tunnel port

This commit is contained in:
2020-05-27 00:27:31 +02:00
parent 3594b6c8d8
commit 5bc280c2dd

View File

@ -21,10 +21,11 @@ function ssm_tunnel --description 'access private AWS ressources via Bastion Hos
# Ports to bind for forwarding
set LOCAL_PORT $argv[2]
set REM_PORT (math (random) % 65535 + 2000)
# make sure jq is installed
# Start socat on the remote server
set CMD "'sudo socat TCP4-LISTEN:$LOCAL_PORT,fork TCP4:$REMOTE_HOST'"
set CMD "'sudo socat TCP4-LISTEN:$REM_PORT,fork TCP4:$REMOTE_HOST'"
set CMD_INVOC_ID (aws ssm send-command --instance-ids $INSTANCE_ID \
--document-name 'AWS-RunShellScript' \
--parameters commands=$CMD --output json | jq -r '.Command.CommandId')
@ -33,7 +34,7 @@ function ssm_tunnel --description 'access private AWS ressources via Bastion Hos
echo "Starting Tunnel"
aws ssm start-session --target $INSTANCE_ID \
--document-name "AWS-StartPortForwardingSession" \
--parameters "portNumber=$LOCAL_PORT,localPortNumber=$LOCAL_PORT"
--parameters "portNumber=$REM_PORT,localPortNumber=$LOCAL_PORT"
# stop socat on the bastion
aws ssm cancel-command --command-id $CMD_INVOC_ID