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Implement /ext in Steve for Imperative API (#287)

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This implements the Imperative API that is served at /ext with Steve. The imperative API is compatible with Kubernetes' API server and will be used as an extension API server.
This commit is contained in:
Tom Lebreux
2024-10-11 15:19:27 -04:00
committed by GitHub
parent 57a25ffa82
commit 1f21e5e515
18 changed files with 5343 additions and 4 deletions
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28
pkg/server/server.go
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@@ -31,6 +31,16 @@ import (
var ErrConfigRequired = errors.New("rest config is required")
// ExtensionAPIServer will run an extension API server. The extension API server
// will be accessible from Steve at the /ext endpoint and will be compatible with
// the aggregate API server in Kubernetes.
type ExtensionAPIServer interface {
// The ExtensionAPIServer is served at /ext in Steve's mux
http.Handler
// Run configures the API server and make the HTTP handler available
Run(ctx context.Context)
}
type Server struct {
http.Handler
@@ -44,6 +54,8 @@ type Server struct {
ClusterRegistry string
Version string
extensionAPIServer ExtensionAPIServer
authMiddleware auth.Middleware
controllers *Controllers
needControllerStart bool
@@ -69,6 +81,14 @@ type Options struct {
ServerVersion string
// SQLCache enables the SQLite-based lasso caching mechanism
SQLCache bool
// ExtensionAPIServer enables an extension API server that will be served
// under /ext
// If nil, Steve's default http handler for unknown routes will be served.
//
// In most cases, you'll want to use [github.com/rancher/steve/pkg/ext.NewExtensionAPIServer]
// to create an ExtensionAPIServer.
ExtensionAPIServer ExtensionAPIServer
}
func New(ctx context.Context, restConfig *rest.Config, opts *Options) (*Server, error) {
@@ -89,7 +109,8 @@ func New(ctx context.Context, restConfig *rest.Config, opts *Options) (*Server,
ClusterRegistry: opts.ClusterRegistry,
Version: opts.ServerVersion,
// SQLCache enables the SQLite-based lasso caching mechanism
SQLCache: opts.SQLCache,
SQLCache: opts.SQLCache,
extensionAPIServer: opts.ExtensionAPIServer,
}
if err := setup(ctx, server); err != nil {
@@ -213,7 +234,7 @@ func setup(ctx context.Context, server *Server) error {
onSchemasHandler,
sf)
apiServer, handler, err := handler.New(server.RESTConfig, sf, server.authMiddleware, server.next, server.router)
apiServer, handler, err := handler.New(server.RESTConfig, sf, server.authMiddleware, server.next, server.router, server.extensionAPIServer)
if err != nil {
return err
}
@@ -231,6 +252,9 @@ func (c *Server) start(ctx context.Context) error {
return err
}
}
if c.extensionAPIServer != nil {
c.extensionAPIServer.Run(ctx)
}
return nil
}