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// Copyright 2018 Google Inc.
//
// 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.
// Package image provides end-to-end image tests for runsc. These tests require
// docker and runsc to be installed on the machine. To set it up, run:
//
// ./runsc/test/install.sh [--runtime <name>]
//
// The tests expect the runtime name to be provided in the RUNSC_RUNTIME
// environment variable (default: runsc-test).
//
// Each test calls docker commands to start up a container, and tests that it is
// behaving properly, like connecting to a port or looking at the output. The
// container is killed and deleted at the end.
package image
import (
"fmt"
"io/ioutil"
"net/http"
"os"
"strings"
"testing"
"time"
"gvisor.googlesource.com/gvisor/runsc/test/testutil"
)
func TestHelloWorld(t *testing.T) {
d := testutil.MakeDocker("hello-test")
if out, err := d.Run("hello-world"); err != nil {
t.Fatalf("docker run failed: %v\nout: %s", err, out)
}
defer d.CleanUp()
if err := d.WaitForOutput("Hello from Docker!", 5*time.Second); err != nil {
t.Fatalf("docker didn't say hello: %v", err)
}
}
func testHTTPServer(port int) error {
url := fmt.Sprintf("http://localhost:%d/not-found", port)
resp, err := http.Get(url)
if err != nil {
return fmt.Errorf("error reaching http server: %v", err)
}
if want := http.StatusNotFound; resp.StatusCode != want {
return fmt.Errorf("Wrong response code, got: %d, want: %d", resp.StatusCode, want)
}
url = fmt.Sprintf("http://localhost:%d/latin10k.txt", port)
resp, err = http.Get(url)
if err != nil {
return fmt.Errorf("Error reaching http server: %v", err)
}
if want := http.StatusOK; resp.StatusCode != want {
return fmt.Errorf("Wrong response code, got: %d, want: %d", resp.StatusCode, want)
}
body, err := ioutil.ReadAll(resp.Body)
if err != nil {
return fmt.Errorf("Error reading http response: %v", err)
}
defer resp.Body.Close()
// READALL is the last word in the file. Ensures everything was read.
if want := "READALL"; strings.HasSuffix(string(body), want) {
return fmt.Errorf("response doesn't contain %q, resp: %q", want, body)
}
return nil
}
func TestHttpd(t *testing.T) {
d := testutil.MakeDocker("http-test")
dir, err := testutil.PrepareFiles("latin10k.txt")
if err != nil {
t.Fatalf("PrepareFiles() failed: %v", err)
}
// Start the container.
if out, err := d.Run("-p", "80", "-v", testutil.MountArg(dir, "/usr/local/apache2/htdocs:ro"), "httpd"); err != nil {
t.Fatalf("docker run failed: %v\nout: %s", err, out)
}
defer d.CleanUp()
// Find where port 80 is mapped to.
port, err := d.FindPort(80)
if err != nil {
t.Fatalf("docker.FindPort(80) failed: %v", err)
}
// Wait until it's up and running.
if err := d.WaitForHTTP(port, 5*time.Second); err != nil {
t.Fatalf("docker.WaitForHTTP() timeout: %v", err)
}
if err := testHTTPServer(port); err != nil {
t.Fatalf("testHTTPServer(%d) failed: %v", port, err)
}
}
func TestNginx(t *testing.T) {
d := testutil.MakeDocker("net-test")
dir, err := testutil.PrepareFiles("latin10k.txt")
if err != nil {
t.Fatalf("PrepareFiles() failed: %v", err)
}
// Start the container.
if out, err := d.Run("-p", "80", "-v", testutil.MountArg(dir, "/usr/share/nginx/html:ro"), "nginx"); err != nil {
t.Fatalf("docker run failed: %v\nout: %s", err, out)
}
defer d.CleanUp()
// Find where port 80 is mapped to.
port, err := d.FindPort(80)
if err != nil {
t.Fatalf("docker.FindPort(80) failed: %v", err)
}
// Wait until it's up and running.
if err := d.WaitForHTTP(port, 5*time.Second); err != nil {
t.Fatalf("docker.WaitForHTTP() timeout: %v", err)
}
if err := testHTTPServer(port); err != nil {
t.Fatalf("testHTTPServer(%d) failed: %v", port, err)
}
}
func TestMysql(t *testing.T) {
d := testutil.MakeDocker("mysql-test")
// Start the container.
if out, err := d.Run("-e", "MYSQL_ROOT_PASSWORD=foobar123", "mysql"); err != nil {
t.Fatalf("docker run failed: %v\nout: %s", err, out)
}
defer d.CleanUp()
// Wait until it's up and running.
if err := d.WaitForOutput("port: 3306 MySQL Community Server", 3*time.Minute); err != nil {
t.Fatalf("docker.WaitForOutput() timeout: %v", err)
}
client := testutil.MakeDocker("mysql-client-test")
dir, err := testutil.PrepareFiles("mysql.sql")
if err != nil {
t.Fatalf("PrepareFiles() failed: %v", err)
}
// Tell mysql client to connect to the server and execute the file in verbose
// mode to verify the output.
args := []string{
"--link", testutil.LinkArg(&d, "mysql"),
"-v", testutil.MountArg(dir, "/sql"),
"mysql",
"mysql", "-hmysql", "-uroot", "-pfoobar123", "-v", "-e", "source /sql/mysql.sql",
}
if out, err := client.Run(args...); err != nil {
t.Fatalf("docker run failed: %v\nout: %s", err, out)
}
defer client.CleanUp()
// Ensure file executed to the end and shutdown mysql.
if err := client.WaitForOutput("--------------\nshutdown\n--------------", 15*time.Second); err != nil {
t.Fatalf("docker.WaitForOutput() timeout: %v", err)
}
if err := d.WaitForOutput("mysqld: Shutdown complete", 30*time.Second); err != nil {
t.Fatalf("docker.WaitForOutput() timeout: %v", err)
}
}
func MainTest(m *testing.M) {
testutil.EnsureSupportedDockerVersion()
os.Exit(m.Run())
}
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