consul-render

#!/bin/bash

CONTENT="$1"

# Create a random file name for tmp files
RAND=$(cat /dev/urandom | env LC_CTYPE=C tr -dc 'a-zA-Z0-9' | head -c 32)
TMPFILE="/tmp/$RAND"

# Render content to tmp file and output content
echo -e "$CONTENT" > "$TMPFILE.in"
consul-template -template "$TMPFILE.in:$TMPFILE.out" -once
cat "$TMPFILE.out"

# Clean up
rm "$TMPFILE.in" "$TMPFILE.out"

usage

template {
    contents = "{{ key \"some/key\" | plugin \"consul-render\" }}"
    destination = "/some/file"
}