mirror of
https://github.com/ceph/ceph-csi.git
synced 2024-12-27 15:30:23 +00:00
4f0bb2315b
With Amazon STS and kubernetes cluster is configured with OIDC identity provider, credentials to access Amazon KMS can be fetched using oidc-token(serviceaccount token). Each tenant/namespace needs to create a secret with aws region, role and CMK ARN. Ceph-CSI will assume the given role with oidc token and access aws KMS, with given CMK to encrypt/decrypt DEK which will stored in the image metdata. Refer: https://docs.aws.amazon.com/STS/latest/APIReference/welcome.html Resolves: #2879 Signed-off-by: Rakshith R <rar@redhat.com>
72 lines
2.1 KiB
Go
72 lines
2.1 KiB
Go
package middleware
|
|
|
|
import (
|
|
"context"
|
|
)
|
|
|
|
// Handler provides the interface for performing the logic to obtain an output,
|
|
// or error for the given input.
|
|
type Handler interface {
|
|
// Handle performs logic to obtain an output for the given input. Handler
|
|
// should be decorated with middleware to perform input specific behavior.
|
|
Handle(ctx context.Context, input interface{}) (
|
|
output interface{}, metadata Metadata, err error,
|
|
)
|
|
}
|
|
|
|
// HandlerFunc provides a wrapper around a function pointer to be used as a
|
|
// middleware handler.
|
|
type HandlerFunc func(ctx context.Context, input interface{}) (
|
|
output interface{}, metadata Metadata, err error,
|
|
)
|
|
|
|
// Handle invokes the underlying function, returning the result.
|
|
func (fn HandlerFunc) Handle(ctx context.Context, input interface{}) (
|
|
output interface{}, metadata Metadata, err error,
|
|
) {
|
|
return fn(ctx, input)
|
|
}
|
|
|
|
// Middleware provides the interface to call handlers in a chain.
|
|
type Middleware interface {
|
|
// ID provides a unique identifier for the middleware.
|
|
ID() string
|
|
|
|
// Performs the middleware's handling of the input, returning the output,
|
|
// or error. The middleware can invoke the next Handler if handling should
|
|
// continue.
|
|
HandleMiddleware(ctx context.Context, input interface{}, next Handler) (
|
|
output interface{}, metadata Metadata, err error,
|
|
)
|
|
}
|
|
|
|
// decoratedHandler wraps a middleware in order to to call the next handler in
|
|
// the chain.
|
|
type decoratedHandler struct {
|
|
// The next handler to be called.
|
|
Next Handler
|
|
|
|
// The current middleware decorating the handler.
|
|
With Middleware
|
|
}
|
|
|
|
// Handle implements the Handler interface to handle a operation invocation.
|
|
func (m decoratedHandler) Handle(ctx context.Context, input interface{}) (
|
|
output interface{}, metadata Metadata, err error,
|
|
) {
|
|
return m.With.HandleMiddleware(ctx, input, m.Next)
|
|
}
|
|
|
|
// DecorateHandler decorates a handler with a middleware. Wrapping the handler
|
|
// with the middleware.
|
|
func DecorateHandler(h Handler, with ...Middleware) Handler {
|
|
for i := len(with) - 1; i >= 0; i-- {
|
|
h = decoratedHandler{
|
|
Next: h,
|
|
With: with[i],
|
|
}
|
|
}
|
|
|
|
return h
|
|
}
|