env = GNU bash, version 4.2.46(2)-release (x86_64-redhat-linux-gnu)
Situation:
SystemA=No internet. SystemB=Yes internet.
SystemA has a log file. SystemA wants SystemB to send a curl command for him.
SystemA$
ssh SystemB curl -X POST -H "Content-type: application/json" -d "$data" $hook
= fail
SystemB$
curl -X POST -H "Content-type: application/json" -d "$data" $hook = success
How do I achieve this without SystemA ‘scp’ing the log file to SystemB?
It’s heavily schedule related so I want SystemA let SystemB work.
EDIT: I narrowed down the problem :
On SystemB:
curl -X POST -H "Content-type: application/json" -d '{$data}' $hookurl = success
curl -X POST -H "Content-type: application/json" -d {$data} $hookurl = fail
So when I type in SystemA
ssh SystemB curl -X POST -H "Content-type: application/json" -d "{$data}" $hookurl
It actually runs with -d {$data} on SystemB. How can I fix this?
Update:
ssh SystemB curl -X POST -H "Content-type: application/json" -d "'{$data}'" $hookurl
did work and actually sent data to url,
but curl: (6) Could not resolve host: application; Unknown error occurred again.
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Answer
You can use this command :
ssh SystemB /bin/bash <<< "$(declare -p data hook);"'curl -X POST -H "Content-type: application/json" -d "$data" "$hook"'
"$(declare -p data hook);" takes variable definitions from SystemA and passes them to SystemB