ecf355721f
Instead of doing the current hack of copying the agola toolbox inside the host tmp dir (always done but only needed when running the executor inside a docker container) that has different issues (like tmp file removal done by tmpwatch/systemd-tmpfiles), use a solution similar to the k8s driver: for every pod create a volume containing the agola-toolbox and remove it at pod removal. We could also use a single "global" volume but we should handle cases like volume removal (i.e. a docker volume prune command). So for now just create a dedicated per pod volume.
540 lines
13 KiB
Go
540 lines
13 KiB
Go
// Copyright 2019 Sorint.lab
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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 driver
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import (
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"bytes"
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"context"
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"io/ioutil"
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"os"
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"testing"
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"time"
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slog "agola.io/agola/internal/log"
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"agola.io/agola/internal/testutil"
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"github.com/docker/docker/api/types"
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uuid "github.com/satori/go.uuid"
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"github.com/google/go-cmp/cmp"
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"go.uber.org/zap"
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"go.uber.org/zap/zapcore"
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)
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var level = zap.NewAtomicLevelAt(zapcore.InfoLevel)
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var logger = slog.New(level)
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func TestDockerPod(t *testing.T) {
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if os.Getenv("SKIP_DOCKER_TESTS") == "1" {
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t.Skip("skipping since env var SKIP_DOCKER_TESTS is 1")
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}
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toolboxPath := os.Getenv("AGOLA_TOOLBOX_PATH")
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if toolboxPath == "" {
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t.Fatalf("env var AGOLA_TOOLBOX_PATH is undefined")
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}
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d, err := NewDockerDriver(logger, "executorid01", toolboxPath)
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if err != nil {
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t.Fatalf("unexpected err: %v", err)
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}
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ctx := context.Background()
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if err := d.Setup(ctx); err != nil {
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t.Fatalf("unexpected err: %v", err)
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}
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t.Run("create a pod with one container", func(t *testing.T) {
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pod, err := d.NewPod(ctx, &PodConfig{
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ID: uuid.NewV4().String(),
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TaskID: uuid.NewV4().String(),
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Containers: []*ContainerConfig{
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&ContainerConfig{
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Cmd: []string{"cat"},
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Image: "busybox",
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},
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},
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InitVolumeDir: "/tmp/agola",
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}, ioutil.Discard)
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if err != nil {
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t.Fatalf("unexpected err: %v", err)
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}
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defer func() { _ = pod.Remove(ctx) }()
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})
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t.Run("execute a command inside a pod", func(t *testing.T) {
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pod, err := d.NewPod(ctx, &PodConfig{
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ID: uuid.NewV4().String(),
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TaskID: uuid.NewV4().String(),
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Containers: []*ContainerConfig{
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&ContainerConfig{
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Cmd: []string{"cat"},
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Image: "busybox",
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},
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},
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InitVolumeDir: "/tmp/agola",
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}, ioutil.Discard)
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if err != nil {
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t.Fatalf("unexpected err: %v", err)
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}
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defer func() { _ = pod.Remove(ctx) }()
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ce, err := pod.Exec(ctx, &ExecConfig{
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Cmd: []string{"ls"},
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})
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if err != nil {
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t.Fatalf("unexpected err: %v", err)
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}
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code, err := ce.Wait(ctx)
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if err != nil {
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t.Fatalf("unexpected err: %v", err)
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}
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if code != 0 {
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t.Fatalf("unexpected exit code: %d", code)
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}
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})
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t.Run("test pod environment", func(t *testing.T) {
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env := map[string]string{
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"ENV01": "ENVVALUE01",
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"ENV02": "ENVVALUE02",
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}
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pod, err := d.NewPod(ctx, &PodConfig{
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ID: uuid.NewV4().String(),
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TaskID: uuid.NewV4().String(),
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Containers: []*ContainerConfig{
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&ContainerConfig{
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Cmd: []string{"cat"},
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Image: "busybox",
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Env: env,
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},
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},
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InitVolumeDir: "/tmp/agola",
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}, ioutil.Discard)
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if err != nil {
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t.Fatalf("unexpected err: %v", err)
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}
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defer func() { _ = pod.Remove(ctx) }()
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var buf bytes.Buffer
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ce, err := pod.Exec(ctx, &ExecConfig{
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Cmd: []string{"env"},
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Stdout: &buf,
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Stderr: &buf,
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})
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if err != nil {
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t.Fatalf("unexpected err: %v", err)
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}
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code, err := ce.Wait(ctx)
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if err != nil {
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t.Fatalf("unexpected err: %v", err)
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}
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if code != 0 {
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t.Fatalf("unexpected exit code: %d", code)
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}
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curEnv, err := testutil.ParseEnvs(bytes.NewReader(buf.Bytes()))
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if err != nil {
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t.Fatalf("unexpected err: %v", err)
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}
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for n, e := range env {
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if ce, ok := curEnv[n]; !ok {
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t.Fatalf("missing env var %s", n)
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} else {
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if ce != e {
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t.Fatalf("different env var %s value, want: %q, got %q", n, e, ce)
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}
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}
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}
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})
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t.Run("create a pod with two containers", func(t *testing.T) {
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pod, err := d.NewPod(ctx, &PodConfig{
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ID: uuid.NewV4().String(),
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TaskID: uuid.NewV4().String(),
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Containers: []*ContainerConfig{
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&ContainerConfig{
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Cmd: []string{"cat"},
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Image: "busybox",
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},
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&ContainerConfig{
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Image: "nginx:1.16",
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},
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},
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InitVolumeDir: "/tmp/agola",
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}, ioutil.Discard)
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if err != nil {
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t.Fatalf("unexpected err: %v", err)
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}
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defer func() { _ = pod.Remove(ctx) }()
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})
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t.Run("test communication between two containers", func(t *testing.T) {
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pod, err := d.NewPod(ctx, &PodConfig{
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ID: uuid.NewV4().String(),
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TaskID: uuid.NewV4().String(),
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Containers: []*ContainerConfig{
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&ContainerConfig{
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Cmd: []string{"cat"},
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Image: "busybox",
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},
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&ContainerConfig{
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Image: "nginx:1.16",
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},
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},
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InitVolumeDir: "/tmp/agola",
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}, ioutil.Discard)
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if err != nil {
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t.Fatalf("unexpected err: %v", err)
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}
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defer func() { _ = pod.Remove(ctx) }()
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// wait for nginx up
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time.Sleep(1 * time.Second)
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ce, err := pod.Exec(ctx, &ExecConfig{
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Cmd: []string{"nc", "-z", "localhost", "80"},
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})
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if err != nil {
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t.Fatalf("unexpected err: %v", err)
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}
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code, err := ce.Wait(ctx)
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if err != nil {
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t.Fatalf("unexpected err: %v", err)
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}
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if code != 0 {
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t.Fatalf("unexpected exit code: %d", code)
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}
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})
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t.Run("test get pods single container", func(t *testing.T) {
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pod, err := d.NewPod(ctx, &PodConfig{
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ID: uuid.NewV4().String(),
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TaskID: uuid.NewV4().String(),
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Containers: []*ContainerConfig{
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&ContainerConfig{
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Cmd: []string{"cat"},
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Image: "busybox",
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},
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},
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InitVolumeDir: "/tmp/agola",
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}, ioutil.Discard)
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if err != nil {
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t.Fatalf("unexpected err: %v", err)
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}
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defer func() { _ = pod.Remove(ctx) }()
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pods, err := d.GetPods(ctx, true)
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if err != nil {
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t.Fatalf("unexpected err: %v", err)
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}
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ok := false
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for _, p := range pods {
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if p.ID() == pod.ID() {
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ok = true
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ip := pod.(*DockerPod)
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dp := p.(*DockerPod)
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for i, c := range dp.containers {
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if c.ID != ip.containers[i].ID {
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t.Fatalf("different container id, want: %q, got: %q", c.ID, ip.containers[i].ID)
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}
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if diff := cmp.Diff(ip.containers[i], c); diff != "" {
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t.Error(diff)
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}
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}
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}
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}
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if !ok {
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t.Fatalf("pod with id %q not found", pod.ID())
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}
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})
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t.Run("test get pods two containers", func(t *testing.T) {
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pod, err := d.NewPod(ctx, &PodConfig{
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ID: uuid.NewV4().String(),
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TaskID: uuid.NewV4().String(),
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Containers: []*ContainerConfig{
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&ContainerConfig{
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Cmd: []string{"cat"},
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Image: "busybox",
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},
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&ContainerConfig{
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Image: "nginx:1.16",
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},
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},
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InitVolumeDir: "/tmp/agola",
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}, ioutil.Discard)
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if err != nil {
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t.Fatalf("unexpected err: %v", err)
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}
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defer func() { _ = pod.Remove(ctx) }()
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pods, err := d.GetPods(ctx, true)
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if err != nil {
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t.Fatalf("unexpected err: %v", err)
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}
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ok := false
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for _, p := range pods {
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if p.ID() == pod.ID() {
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ok = true
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ip := pod.(*DockerPod)
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dp := p.(*DockerPod)
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for i, c := range dp.containers {
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if c.ID != ip.containers[i].ID {
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t.Fatalf("different container id, want: %q, got: %q", c.ID, ip.containers[i].ID)
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}
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if diff := cmp.Diff(ip.containers[i], c); diff != "" {
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t.Error(diff)
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}
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}
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}
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}
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if !ok {
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t.Fatalf("pod with id %q not found", pod.ID())
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}
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})
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t.Run("test get pods with two containers and the first already deleted", func(t *testing.T) {
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pod, err := d.NewPod(ctx, &PodConfig{
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ID: uuid.NewV4().String(),
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TaskID: uuid.NewV4().String(),
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Containers: []*ContainerConfig{
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&ContainerConfig{
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Cmd: []string{"cat"},
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Image: "busybox",
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},
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&ContainerConfig{
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Image: "nginx:1.16",
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},
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},
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InitVolumeDir: "/tmp/agola",
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}, ioutil.Discard)
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if err != nil {
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t.Fatalf("unexpected err: %v", err)
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}
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defer func() { _ = pod.Remove(ctx) }()
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// delete the first container
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dp := pod.(*DockerPod)
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if err := dp.client.ContainerRemove(ctx, dp.containers[0].ID, types.ContainerRemoveOptions{Force: true}); err != nil {
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t.Fatalf("unexpected err: %v", err)
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}
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pods, err := d.GetPods(ctx, true)
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if err != nil {
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t.Fatalf("unexpected err: %v", err)
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}
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ok := false
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for _, p := range pods {
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if p.ID() == pod.ID() {
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ok = true
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ip := pod.(*DockerPod)
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dp := p.(*DockerPod)
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if len(dp.containers) != 1 {
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t.Fatalf("expected 1 container, got %d containers", len(dp.containers))
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}
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if dp.containers[0].ID != ip.containers[1].ID {
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t.Fatalf("different container id, want: %q, got: %q", dp.containers[0].ID, ip.containers[1].ID)
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}
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if diff := cmp.Diff(ip.containers[1], dp.containers[0]); diff != "" {
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t.Error(diff)
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}
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}
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}
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if !ok {
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t.Fatalf("pod with id %q not found", pod.ID())
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}
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})
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t.Run("test pod with a tmpfs volume with size limit", func(t *testing.T) {
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pod, err := d.NewPod(ctx, &PodConfig{
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ID: uuid.NewV4().String(),
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TaskID: uuid.NewV4().String(),
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Containers: []*ContainerConfig{
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&ContainerConfig{
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Cmd: []string{"cat"},
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Image: "busybox",
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Volumes: []Volume{
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{
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Path: "/mnt/tmpfs",
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TmpFS: &VolumeTmpFS{
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Size: 1024 * 1024,
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},
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},
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},
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},
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},
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InitVolumeDir: "/tmp/agola",
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}, ioutil.Discard)
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if err != nil {
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t.Fatalf("unexpected err: %v", err)
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}
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defer func() { _ = pod.Remove(ctx) }()
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ce, err := pod.Exec(ctx, &ExecConfig{
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Cmd: []string{"sh", "-c", "if [ $(grep /mnt/tmpfs /proc/mounts | grep -c size=1024k) -ne 1 ]; then exit 1; fi"},
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})
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if err != nil {
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t.Fatalf("unexpected err: %v", err)
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}
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code, err := ce.Wait(ctx)
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if err != nil {
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t.Fatalf("unexpected err: %v", err)
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}
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if code != 0 {
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t.Fatalf("unexpected exit code: %d", code)
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}
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})
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t.Run("test pod with a tmpfs volume without size limit", func(t *testing.T) {
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pod, err := d.NewPod(ctx, &PodConfig{
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ID: uuid.NewV4().String(),
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TaskID: uuid.NewV4().String(),
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Containers: []*ContainerConfig{
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&ContainerConfig{
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Cmd: []string{"cat"},
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Image: "busybox",
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Volumes: []Volume{
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{
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Path: "/mnt/tmpfs",
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TmpFS: &VolumeTmpFS{},
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},
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},
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},
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},
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InitVolumeDir: "/tmp/agola",
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}, ioutil.Discard)
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if err != nil {
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t.Fatalf("unexpected err: %v", err)
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}
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defer func() { _ = pod.Remove(ctx) }()
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ce, err := pod.Exec(ctx, &ExecConfig{
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Cmd: []string{"sh", "-c", "if [ $(grep -c /mnt/tmpfs /proc/mounts) -ne 1 ]; then exit 1; fi"},
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})
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if err != nil {
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t.Fatalf("unexpected err: %v", err)
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}
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code, err := ce.Wait(ctx)
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if err != nil {
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t.Fatalf("unexpected err: %v", err)
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}
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if code != 0 {
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t.Fatalf("unexpected exit code: %d", code)
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}
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})
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t.Run("test pod with two tmpfs volumes with size limit", func(t *testing.T) {
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pod, err := d.NewPod(ctx, &PodConfig{
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ID: uuid.NewV4().String(),
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TaskID: uuid.NewV4().String(),
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Containers: []*ContainerConfig{
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&ContainerConfig{
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Cmd: []string{"cat"},
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Image: "busybox",
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Volumes: []Volume{
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{
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Path: "/mnt/vol1",
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TmpFS: &VolumeTmpFS{
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Size: 1024 * 1024,
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},
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},
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{
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Path: "/mnt/vol2",
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TmpFS: &VolumeTmpFS{
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Size: 1024 * 1024,
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},
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},
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},
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},
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},
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InitVolumeDir: "/tmp/agola",
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}, ioutil.Discard)
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if err != nil {
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t.Fatalf("unexpected err: %v", err)
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}
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defer func() { _ = pod.Remove(ctx) }()
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ce, err := pod.Exec(ctx, &ExecConfig{
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Cmd: []string{"sh", "-c", "if [ $(grep /mnt/vol1 /proc/mounts | grep -c size=1024k) -ne 1 -o $(grep /mnt/vol2 /proc/mounts | grep -c size=1024k) -ne 1 ]; then exit 1; fi"},
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})
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if err != nil {
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t.Fatalf("unexpected err: %v", err)
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}
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code, err := ce.Wait(ctx)
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if err != nil {
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t.Fatalf("unexpected err: %v", err)
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}
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if code != 0 {
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t.Fatalf("unexpected exit code: %d", code)
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}
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})
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t.Run("test pod with two tmpfs volumes one with size limit and one without", func(t *testing.T) {
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pod, err := d.NewPod(ctx, &PodConfig{
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ID: uuid.NewV4().String(),
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TaskID: uuid.NewV4().String(),
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Containers: []*ContainerConfig{
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&ContainerConfig{
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Cmd: []string{"cat"},
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Image: "busybox",
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Volumes: []Volume{
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{
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Path: "/mnt/vol1",
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TmpFS: &VolumeTmpFS{
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Size: 1024 * 1024,
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},
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},
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{
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Path: "/mnt/vol2",
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TmpFS: &VolumeTmpFS{},
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},
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},
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},
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},
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InitVolumeDir: "/tmp/agola",
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}, ioutil.Discard)
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if err != nil {
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t.Fatalf("unexpected err: %v", err)
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}
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defer func() { _ = pod.Remove(ctx) }()
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|
|
ce, err := pod.Exec(ctx, &ExecConfig{
|
|
Cmd: []string{"sh", "-c", "if [ $(grep /mnt/vol1 /proc/mounts | grep -c size=1024k) -ne 1 -o $(grep -c /mnt/vol2 /proc/mounts) -ne 1 ]; then exit 1; fi"},
|
|
})
|
|
if err != nil {
|
|
t.Fatalf("unexpected err: %v", err)
|
|
}
|
|
|
|
code, err := ce.Wait(ctx)
|
|
if err != nil {
|
|
t.Fatalf("unexpected err: %v", err)
|
|
}
|
|
if code != 0 {
|
|
t.Fatalf("unexpected exit code: %d", code)
|
|
}
|
|
})
|
|
}
|