linkerd/linkerd2#905

debug.sh

#!/bin/sh

set -eu

DEFAULT_URL="http://localhost:4191/metrics"
DEFAULT_CURL="curl"

curl="${CURL:-$DEFAULT_CURL}"
url="${1:-$DEFAULT_URL}"
while true ; do
    out="$($curl -s "$url" |sed -Ee '/^#/d' -e 's/} [0-9]+/\}/' |sort)"
    lines=$(echo "$out" |wc -l)
    sha=$(echo "$out" |shasum -a 256 |awk '{print $1}' |sed -E 's/(.{8}).*/\1/')
    file="${sha}.debug"
    if [ ! -f "$file" ]; then
        echo "* $lines\t$sha"
        echo "$out" >$file ;
    else
        echo "  $lines\t$sha"
        sleep 1
    fi
done