node_exporter/test_image.sh

#!/bin/bash
set -exo pipefail

docker_image=$1
port=$2

wait_start() {
    for in in {1..10}; do
    if  /usr/bin/curl -s -m 5 -f "http://localhost:${port}/metrics" > /dev/null ; then exit 0 ;
    else
      sleep 1
    fi
    done

  exit 1

}

docker_start() {
    docker run -d -p "${port}":"${port}" "${docker_image}"
}

if [[ "$#" -ne 2 ]] ; then
    echo "Usage: $0 quay.io/prometheus/node-exporter:v0.13.0 9100" >&2
    exit 1
fi

docker_start
wait_start