99 lines
3.0 KiB
Go
99 lines
3.0 KiB
Go
// Copyright 2020 The gVisor Authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// Package base holds utility methods common to the base tests.
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package base
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import (
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"context"
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"net"
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"testing"
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"time"
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"gvisor.dev/gvisor/pkg/test/dockerutil"
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"gvisor.dev/gvisor/test/benchmarks/harness"
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)
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// ServerArgs wraps args for startServers and runServerWorkload.
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type ServerArgs struct {
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Machine harness.Machine
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Port int
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RunOpts dockerutil.RunOpts
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Cmd []string
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}
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// StartServers starts b.N containers defined by 'runOpts' and 'cmd' and uses
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// 'machine' to check that each is up.
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func StartServers(ctx context.Context, b *testing.B, args ServerArgs) []*dockerutil.Container {
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b.Helper()
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servers := make([]*dockerutil.Container, 0, b.N)
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// Create N servers and wait until each of them is serving.
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for i := 0; i < b.N; i++ {
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server := args.Machine.GetContainer(ctx, b)
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servers = append(servers, server)
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if err := server.Spawn(ctx, args.RunOpts, args.Cmd...); err != nil {
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CleanUpContainers(ctx, servers)
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b.Fatalf("failed to spawn node instance: %v", err)
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}
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// Get the container IP.
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servingIP, err := server.FindIP(ctx, false)
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if err != nil {
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CleanUpContainers(ctx, servers)
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b.Fatalf("failed to get ip from server: %v", err)
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}
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// Wait until the server is up.
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if err := harness.WaitUntilServing(ctx, args.Machine, servingIP, args.Port); err != nil {
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CleanUpContainers(ctx, servers)
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b.Fatalf("failed to wait for serving")
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}
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}
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return servers
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}
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// CleanUpContainers cleans up a slice of containers.
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func CleanUpContainers(ctx context.Context, containers []*dockerutil.Container) {
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for _, c := range containers {
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if c != nil {
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c.CleanUp(ctx)
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}
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}
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}
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// RedisInstance returns a Redis container and its reachable IP.
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func RedisInstance(ctx context.Context, b *testing.B, machine harness.Machine) (*dockerutil.Container, net.IP) {
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b.Helper()
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// Spawn a redis instance for the app to use.
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redis := machine.GetNativeContainer(ctx, b)
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if err := redis.Spawn(ctx, dockerutil.RunOpts{
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Image: "benchmarks/redis",
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}); err != nil {
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redis.CleanUp(ctx)
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b.Fatalf("failed to spwan redis instance: %v", err)
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}
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if out, err := redis.WaitForOutput(ctx, "Ready to accept connections", 3*time.Second); err != nil {
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redis.CleanUp(ctx)
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b.Fatalf("failed to start redis server: %v %s", err, out)
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}
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redisIP, err := redis.FindIP(ctx, false)
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if err != nil {
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redis.CleanUp(ctx)
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b.Fatalf("failed to get IP from redis instance: %v", err)
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}
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return redis, redisIP
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}
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