279 lines
7.1 KiB
Bash
Executable file
279 lines
7.1 KiB
Bash
Executable file
#!/bin/bash
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#
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# The 'run' performs a simple test that verifies that S2I image.
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# The main focus here is to excersise the S2I scripts.
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#
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# IMAGE_NAME specifies a name of the candidate image used for testing.
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# The image has to be available before this script is executed.
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#
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IMAGE_NAME=${IMAGE_NAME:-rhscl/nginx-112-rhel7}
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# TODO: Make command compatible for Mac users
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test_dir="$(readlink -zf $(dirname "${BASH_SOURCE[0]}"))"
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image_dir=$(readlink -zf ${test_dir}/..)
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. $test_dir/test-lib.sh
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# TODO: This should be part of the image metadata
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test_port=8080
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info() {
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echo -e "\n\e[1m[INFO] $@...\e[0m\n"
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}
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image_exists() {
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docker inspect $1 &>/dev/null
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}
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container_exists() {
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image_exists $(cat $cid_file)
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}
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container_ip() {
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docker inspect --format="{{ .NetworkSettings.IPAddress }}" $(cat $cid_file)
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}
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run_s2i_build() {
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ct_s2i_build_as_df file://${test_dir}/${1} ${IMAGE_NAME} ${IMAGE_NAME}-${1} ${s2i_args}
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}
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prepare() {
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if ! image_exists ${IMAGE_NAME}; then
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echo "ERROR: The image ${IMAGE_NAME} must exist before this script is executed."
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exit 1
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fi
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# TODO: S2I build require the application is a valid 'GIT' repository, we
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# should remove this restriction in the future when a file:// is used.
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info "Build the test application image"
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pushd ${test_dir}/${1} >/dev/null
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git init
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git config user.email "build@localhost" && git config user.name "builder"
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git add -A && git commit -m "Sample commit"
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popd >/dev/null
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}
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run_test_application() {
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run_args=${CONTAINER_ARGS:-}
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docker run --user=100001 ${run_args} --cidfile=${cid_file} ${IMAGE_NAME}-${1}
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}
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cleanup_test_app() {
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info "Cleaning up the test application"
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if [ -f $cid_file ]; then
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if container_exists; then
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docker stop $(cat $cid_file)
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docker rm $(cat $cid_file)
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fi
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rm $cid_file
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fi
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}
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cleanup() {
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info "Cleaning up the test application image"
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if image_exists ${IMAGE_NAME}-${1}; then
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docker rmi -f ${IMAGE_NAME}-${1}
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fi
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rm -rf ${test_dir}/${1}/.git
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}
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check_result() {
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local result="$1"
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if [[ "$result" != "0" ]]; then
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info "TEST FAILED (${result})"
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cleanup $2
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exit $result
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fi
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}
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wait_for_cid() {
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local max_attempts=10
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local sleep_time=1
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local attempt=1
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local result=1
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info "Waiting for application container to start"
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while [ $attempt -le $max_attempts ]; do
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[ -f $cid_file ] && [ -s $cid_file ] && break
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attempt=$(( $attempt + 1 ))
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sleep $sleep_time
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done
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}
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test_s2i_usage() {
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info "Testing 's2i usage'"
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ct_s2i_usage ${IMAGE_NAME} ${s2i_args} &>/dev/null
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}
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test_docker_run_usage() {
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info "Testing 'docker run' usage"
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docker run ${IMAGE_NAME} &>/dev/null
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}
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test_scl_usage() {
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local run_cmd="$1"
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local expected="$2"
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info "Testing the image SCL enable"
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out=$(docker run --rm ${IMAGE_NAME} /bin/bash -c "${run_cmd} 2>&1")
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if ! echo "${out}" | grep -q "${expected}"; then
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echo "ERROR[/bin/bash -c "${run_cmd}"] Expected '${expected}', got '${out}'"
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return 1
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fi
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test_command "$run_cmd" "$expected"
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return $?
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}
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test_command() {
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local run_cmd="$1"
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local expected="$2"
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local message="$3"
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if [ $message ]; then
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info ${3}
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fi
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out=$(docker exec $(cat ${cid_file}) /bin/bash -c "${run_cmd}" 2>&1)
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if ! echo "${out}" | grep -q "${expected}"; then
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echo "ERROR[exec /bin/bash -c "${run_cmd}"] Expected '${expected}', got '${out}'"
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return 1
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fi
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out=$(docker exec $(cat ${cid_file}) /bin/sh -ic "${run_cmd}" 2>&1)
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if ! echo "${out}" | grep -q "${expected}"; then
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echo "ERROR[exec /bin/sh -ic "${run_cmd}"] Expected '${expected}', got '${out}'"
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return 1
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fi
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return 0
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}
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test_for_output()
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{
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local url="$1"
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local expect="$2"
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local host="${3-localhost}"
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local max_attempts=5
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local sleep_time=1
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local attempt=1
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local result=1
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info "Testing URL $url with HTTP hostname ${host} produces output $expect"
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while [ $attempt -le $max_attempts ]; do
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response=$(curl -s -H "Host: ${host}" ${url})
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echo "${response}"
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status=$?
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if [ $status -eq 0 ]; then
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if echo "${response}" | grep -q "${expect}"; then
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info "Success!"
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result=0
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break
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else
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echo "Response: ${response}"
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fi
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fi
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attempt=$(( $attempt + 1 ))
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sleep $sleep_time
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done
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return $result
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}
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test_connection() {
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cat $cid_file
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info "Testing the HTTP connection (http://$(container_ip):${test_port})"
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if test_for_output "http://$(container_ip):${test_port}/" "NGINX is working" &&
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test_for_output "http://$(container_ip):${test_port}/" "NGINX2 is working" localhost2 &&
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test_for_output "http://$(container_ip):${test_port}/aliased/index2.html" "NGINX2 is working" &&
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test_for_output "http://$(container_ip):${test_port}/nginx-cfg/default.conf" "404"; then
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return 0
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fi
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return 1
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}
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test_connection_s2i() {
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cat $cid_file
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info "Testing the HTTP connection (http://$(container_ip):${test_port})"
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if test_for_output "http://$(container_ip):${test_port}/" "NGINX is working" &&
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test_for_output "http://$(container_ip):${test_port}/" "NGINX2 is working" localhost2 &&
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test_for_output "http://$(container_ip):${test_port}/nginx-cfg/default.conf" "404"; then
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return 0
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fi
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return 1
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}
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test_application() {
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# Verify that the HTTP connection can be established to test application container
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run_test_application "test-app" &
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# Wait for the container to write it's CID file
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wait_for_cid
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test_scl_usage "nginx -v" "nginx version: nginx/1.12."
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check_result $? "test-app"
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test_connection
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check_result $? "test-app"
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cleanup_test_app
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}
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test_pre_init_script() {
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# Verify that the HTTP connection can be established to test application container
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run_test_application "start-hook-test-app" &
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# Wait for the container to write it's CID file
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wait_for_cid
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test_command "cat /opt/app-root/etc/nginx.d/default.conf | grep 'resolver' | sed -e 's/resolver\(.*\);/\1/' | grep 'DNS_SERVER'" ""
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check_result $? "start-hook-test-app"
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test_connection_s2i
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check_result $? "start-hook-test-app"
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cleanup_test_app
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}
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cid_file=$(mktemp -u --suffix=.cid)
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# Since we built the candidate image locally, we don't want S2I attempt to pull
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# it from Docker hub
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s2i_args="--pull-policy=never"
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if [ "$TARGET" == "fedora" ]; then
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mv ${test_dir}/test-app/nginx.conf{,.bkp}
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cp ${test_dir}/test-app/nginx.conf{.fedora,}
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fi
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prepare "test-app"
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run_s2i_build "test-app"
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if [ "$TARGET" == "fedora" ]; then
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mv ${test_dir}/test-app/nginx.conf{.bkp,}
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fi
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check_result $? "test-app"
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# Verify the 'usage' script is working properly when running the base image with 's2i usage ...'
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test_s2i_usage
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check_result $? "test-app"
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# Verify the 'usage' script is working properly when running the base image with 'docker run ...'
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test_docker_run_usage
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check_result $? "test-app"
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# Test application with default uid
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test_application
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# Test application with random uid
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CONTAINER_ARGS="--user 12345" test_application
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cleanup "test-app"
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# Test start-hook script functionality
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cid_file=$(mktemp -u --suffix=.cid)
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prepare "start-hook-test-app"
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run_s2i_build "start-hook-test-app"
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check_result $? "start-hook-test-app"
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test_pre_init_script
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cleanup "start-hook-test-app"
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info "All tests finished successfully."
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