If i run this shell script i want it to simply add a entry into my elasticsearch index backup_timestamps.
In the field "timestamp" should be the current time varible. And in the field "system_name" should be the current hostname variable of the machine.
#!/bin/sh
timestamp=`date +"%Y-%m-%d %T"`
system_name=`hostname`
sudo curl -u elastic:PASSWORD -XPOST "https://localhost:9200/backup_timestamps/_doc" --cacert ./certs/ca/ca.crt -H 'Content-Type: application/json' -d '
{
"timestamp": "$timestamp",
"system_name": "$system_name"
}'
echo "("$timestamp" , "$system_name")"
After running this shell script what i get in the elasticsearch db is this:
{
"_index" : "backup_timestamps",
"_id" : "BybOdYABhPvBW1kMbwKh",
"_score" : 1.0,
"_source" : {
"timestamp" : "$timestamp",
"system_name" : "$system_name"
}
But what i want to get is this:
{
"_index" : "backup_timestamps",
"_id" : "BybOdYABhPvBW1kMbwKh",
"_score" : 1.0,
"_source" : {
"timestamp" : "2022-01-01 12:00:00",
"system_name" : "my-server-or-whatever"
}
You have your JSON packet inside single quotes.
Single quotes don't allow variable substitution, double quotes do:
$ THING=hello
$ echo "$THING"
hello
$ echo '$THING'
$THING
Put your packet in double quotes, which would look something like this:
sudo curl \
-u elastic:PASSWORD -XPOST \
"https://localhost:9200/backup_timestamps/_doc" \
--cacert ./certs/ca/ca.crt \
-H 'Content-Type: application/json' \
-d "{\"timestamp\":\"$timestamp\",\"system_name\": \"$system_name\"}"