feat(coderd): add matched provisioner daemons information to more places (#15688)

- Refactors `checkProvisioners` into `db2sdk.MatchedProvisioners`
- Adds a separate RBAC subject just for reading provisioner daemons
- Adds matched provisioners information to additional endpoints relating to
  workspace builds and templates
-Updates existing unit tests for above endpoints
-Adds API endpoint for matched provisioners of template dry-run job
-Updates CLI to show warning when creating/starting/stopping/deleting
 workspaces for which no provisoners are available

---------

Co-authored-by: Danny Kopping <danny@coder.com>

coderd/workspaces.go

@@ -27,6 +27,7 @@ import (
 	"github.com/coder/coder/v2/coderd/httpapi"
 	"github.com/coder/coder/v2/coderd/httpmw"
 	"github.com/coder/coder/v2/coderd/notifications"
+	"github.com/coder/coder/v2/coderd/provisionerdserver"
 	"github.com/coder/coder/v2/coderd/rbac"
 	"github.com/coder/coder/v2/coderd/rbac/policy"
 	"github.com/coder/coder/v2/coderd/schedule/cron"
@@ -593,8 +594,7 @@ func createWorkspace(
 			}},
 		})
 		return
-	}
-	if err != nil && !errors.Is(err, sql.ErrNoRows) {
+	} else if !errors.Is(err, sql.ErrNoRows) {
 		httpapi.Write(ctx, rw, http.StatusInternalServerError, codersdk.Response{
 			Message: fmt.Sprintf("Internal error fetching workspace by name %q.", req.Name),
 			Detail:  err.Error(),
@@ -603,8 +603,10 @@ func createWorkspace(
 	}
 
 	var (
-		provisionerJob *database.ProvisionerJob
-		workspaceBuild *database.WorkspaceBuild
+		provisionerJob      *database.ProvisionerJob
+		workspaceBuild      *database.WorkspaceBuild
+		provisionerDaemons  []database.ProvisionerDaemon
+		matchedProvisioners codersdk.MatchedProvisioners
 	)
 	err = api.Database.InTx(func(db database.Store) error {
 		now := dbtime.Now()
@@ -645,7 +647,7 @@ func createWorkspace(
 			builder = builder.VersionID(req.TemplateVersionID)
 		}
 
-		workspaceBuild, provisionerJob, err = builder.Build(
+		workspaceBuild, provisionerJob, provisionerDaemons, err = builder.Build(
 			ctx,
 			db,
 			func(action policy.Action, object rbac.Objecter) bool {
@@ -655,6 +657,7 @@ func createWorkspace(
 		)
 		return err
 	}, nil)
+
 	var bldErr wsbuilder.BuildError
 	if xerrors.As(err, &bldErr) {
 		httpapi.Write(ctx, rw, bldErr.Status, codersdk.Response{
@@ -675,6 +678,10 @@ func createWorkspace(
 		// Client probably doesn't care about this error, so just log it.
 		api.Logger.Error(ctx, "failed to post provisioner job to pubsub", slog.Error(err))
 	}
+	if provisionerJob != nil {
+		matchedProvisioners = db2sdk.MatchedProvisioners(provisionerDaemons, provisionerJob.CreatedAt, provisionerdserver.StaleInterval)
+	}
+
 	auditReq.New = workspace.WorkspaceTable()
 
 	api.Telemetry.Report(&telemetry.Snapshot{
@@ -696,6 +703,7 @@ func createWorkspace(
 		[]database.WorkspaceAgentScript{},
 		[]database.WorkspaceAgentLogSource{},
 		database.TemplateVersion{},
+		&matchedProvisioners,
 	)
 	if err != nil {
 		httpapi.Write(ctx, rw, http.StatusInternalServerError, codersdk.Response{