test_content.sh

#!/bin/bash -eu
#
# Copyright 2019 Google LLC
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

# retries, interval,keyword may be passed as arguments
# retries: -r
# interval (in seconds): -i
# keyword: -k
# url: -u

## Defaults
keyword="Chocolate Chip"
retries=10
interval=5
url="http://localhost:3000"

while getopts r:i:k:u: option
do
    case "${option}"
    in
        r) retries=$OPTARG;;
        i) interval=$OPTARG;;
        k) keyword=$OPTARG;;
        u) url=$OPTARG;
    esac
done

echo "START CONTENT TEST"
echo "retries: "$retries
echo "interval: "$interval
echo "keyword: "$keyword
echo "url: "$url

for i in $(seq 0 $retries); do
    
    html="$(curl -si $url)" || html=""
    
    if echo "$html" | grep -q "$keyword"
    then
        echo "Keyword found -- site is up"
        echo "END CONTENT TEST: Success! ✅"
        exit 0
    else
        echo "keyword not found. retrying in $interval sec..."
        sleep $interval
    fi
done

echo "Error! Expected content not found."
echo "Was looking for '$keyword'; not found in:"
echo "$html"
echo "END CONTENT TEST: Fail! 💩"

# If desired, cat the logs or copy to GCS

exit 1