Docker-official-images/test/tests/tomcat-hello-world/run.sh

#!/bin/bash
set -eo pipefail

dir="$(dirname "$(readlink -f "$BASH_SOURCE")")"

image="$1"

# since we have curl in the tomcat image, we'll use that
clientImage="$1"

serverImage="$1"

# Create an instance of the container-under-test
cid="$(docker run -d "$serverImage")"
trap "docker rm -vf $cid > /dev/null" EXIT

_request() {
	local method="$1"
	shift

	local url="${1#/}"
	shift

	docker run --rm --link "$cid":tomcat "$clientImage" \
		curl -fs -X"$method" "$@" "http://tomcat:8080/$url"
}

# Make sure that Tomcat is listening
. "$dir/../../retry.sh" '[ "$(_request GET / --output /dev/null || echo $?)" != 7 ]'

# Check that we can request /
[ -n "$(_request GET '/')" ]

# Check that the example "Hello World" servlet works
helloWorld="$(_request GET '/examples/servlets/servlet/HelloWorldExample')"
[[ "$helloWorld" == *'Hello World!'* ]]