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feat: reinitialize agents when a prebuilt workspace is claimed (#17475)
This pull request allows coder workspace agents to be reinitialized when a prebuilt workspace is claimed by a user. This facilitates the transfer of ownership between the anonymous prebuilds system user and the new owner of the workspace. Only a single agent per prebuilt workspace is supported for now, but plumbing has already been done to facilitate the seamless transition to multi-agent support. --------- Signed-off-by: Danny Kopping <dannykopping@gmail.com> Co-authored-by: Danny Kopping <dannykopping@gmail.com>
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@ -5,12 +5,19 @@ import (
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"crypto/tls"
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"fmt"
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"net/http"
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"os"
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"regexp"
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"testing"
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"time"
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"github.com/coder/coder/v2/coderd/database/dbtestutil"
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"github.com/coder/serpent"
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"github.com/google/uuid"
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"github.com/stretchr/testify/require"
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"github.com/coder/coder/v2/agent"
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"github.com/coder/coder/v2/cli/clitest"
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"github.com/coder/coder/v2/coderd/coderdtest"
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"github.com/coder/coder/v2/codersdk"
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"github.com/coder/coder/v2/codersdk/agentsdk"
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@ -73,6 +80,168 @@ func TestBlockNonBrowser(t *testing.T) {
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})
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}
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func TestReinitializeAgent(t *testing.T) {
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t.Parallel()
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tempAgentLog := testutil.CreateTemp(t, "", "testReinitializeAgent")
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if !dbtestutil.WillUsePostgres() {
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t.Skip("dbmem cannot currently claim a workspace")
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}
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db, ps := dbtestutil.NewDB(t)
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// GIVEN a live enterprise API with the prebuilds feature enabled
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client, user := coderdenttest.New(t, &coderdenttest.Options{
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Options: &coderdtest.Options{
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Database: db,
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Pubsub: ps,
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DeploymentValues: coderdtest.DeploymentValues(t, func(dv *codersdk.DeploymentValues) {
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dv.Prebuilds.ReconciliationInterval = serpent.Duration(time.Second)
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dv.Experiments.Append(string(codersdk.ExperimentWorkspacePrebuilds))
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}),
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IncludeProvisionerDaemon: true,
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},
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LicenseOptions: &coderdenttest.LicenseOptions{
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Features: license.Features{
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codersdk.FeatureWorkspacePrebuilds: 1,
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},
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},
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})
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// GIVEN a template, template version, preset and a prebuilt workspace that uses them all
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agentToken := uuid.UUID{3}
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version := coderdtest.CreateTemplateVersion(t, client, user.OrganizationID, &echo.Responses{
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Parse: echo.ParseComplete,
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ProvisionPlan: []*proto.Response{
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{
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Type: &proto.Response_Plan{
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Plan: &proto.PlanComplete{
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Presets: []*proto.Preset{
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{
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Name: "test-preset",
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Prebuild: &proto.Prebuild{
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Instances: 1,
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},
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},
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},
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Resources: []*proto.Resource{
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{
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Agents: []*proto.Agent{
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{
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Name: "smith",
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OperatingSystem: "linux",
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Architecture: "i386",
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},
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},
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},
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},
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},
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},
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},
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},
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ProvisionApply: []*proto.Response{
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{
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Type: &proto.Response_Apply{
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Apply: &proto.ApplyComplete{
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Resources: []*proto.Resource{
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{
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Type: "compute",
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Name: "main",
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Agents: []*proto.Agent{
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{
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Name: "smith",
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OperatingSystem: "linux",
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Architecture: "i386",
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Scripts: []*proto.Script{
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{
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RunOnStart: true,
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Script: fmt.Sprintf("printenv >> %s; echo '---\n' >> %s", tempAgentLog.Name(), tempAgentLog.Name()), // Make reinitialization take long enough to assert that it happened
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},
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},
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Auth: &proto.Agent_Token{
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Token: agentToken.String(),
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},
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},
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},
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},
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},
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},
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},
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},
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},
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})
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coderdtest.AwaitTemplateVersionJobCompleted(t, client, version.ID)
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coderdtest.CreateTemplate(t, client, user.OrganizationID, version.ID)
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// Wait for prebuilds to create a prebuilt workspace
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ctx := context.Background()
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// ctx := testutil.Context(t, testutil.WaitLong)
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var (
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prebuildID uuid.UUID
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)
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require.Eventually(t, func() bool {
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agentAndBuild, err := db.GetWorkspaceAgentAndLatestBuildByAuthToken(ctx, agentToken)
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if err != nil {
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return false
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}
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prebuildID = agentAndBuild.WorkspaceBuild.ID
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return true
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}, testutil.WaitLong, testutil.IntervalFast)
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prebuild := coderdtest.AwaitWorkspaceBuildJobCompleted(t, client, prebuildID)
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preset, err := db.GetPresetByWorkspaceBuildID(ctx, prebuildID)
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require.NoError(t, err)
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// GIVEN a running agent
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logDir := t.TempDir()
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inv, _ := clitest.New(t,
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"agent",
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"--auth", "token",
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"--agent-token", agentToken.String(),
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"--agent-url", client.URL.String(),
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"--log-dir", logDir,
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)
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clitest.Start(t, inv)
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// GIVEN the agent is in a happy steady state
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waiter := coderdtest.NewWorkspaceAgentWaiter(t, client, prebuild.WorkspaceID)
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waiter.WaitFor(coderdtest.AgentsReady)
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// WHEN a workspace is created that can benefit from prebuilds
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anotherClient, anotherUser := coderdtest.CreateAnotherUser(t, client, user.OrganizationID)
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workspace, err := anotherClient.CreateUserWorkspace(ctx, anotherUser.ID.String(), codersdk.CreateWorkspaceRequest{
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TemplateVersionID: version.ID,
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TemplateVersionPresetID: preset.ID,
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Name: "claimed-workspace",
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})
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require.NoError(t, err)
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coderdtest.AwaitWorkspaceBuildJobCompleted(t, client, workspace.LatestBuild.ID)
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// THEN reinitialization completes
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waiter.WaitFor(coderdtest.AgentsReady)
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var matches [][]byte
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require.Eventually(t, func() bool {
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// THEN the agent script ran again and reused the same agent token
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contents, err := os.ReadFile(tempAgentLog.Name())
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if err != nil {
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return false
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}
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// UUID regex pattern (matches UUID v4-like strings)
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uuidRegex := regexp.MustCompile(`\bCODER_AGENT_TOKEN=(.+)\b`)
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matches = uuidRegex.FindAll(contents, -1)
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// When an agent reinitializes, we expect it to run startup scripts again.
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// As such, we expect to have written the agent environment to the temp file twice.
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// Once on initial startup and then once on reinitialization.
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return len(matches) == 2
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}, testutil.WaitLong, testutil.IntervalMedium)
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require.Equal(t, matches[0], matches[1])
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}
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type setupResp struct {
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workspace codersdk.Workspace
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sdkAgent codersdk.WorkspaceAgent
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