Store(local dir) and Serve(http server) FBC #135
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| Original file line number | Diff line number | Diff line change | ||||||
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| @@ -0,0 +1,56 @@ | ||||||||
| package catalogserver | ||||||||
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| import ( | ||||||||
| "context" | ||||||||
| "net/http" | ||||||||
| "os" | ||||||||
| "time" | ||||||||
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| "golang.org/x/sync/errgroup" | ||||||||
| ) | ||||||||
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| // Instance is a manager.Runnable catalog server instance, | ||||||||
| // that serves the FBC content of the extension catalogs | ||||||||
| // added to the cluster | ||||||||
| type Instance struct { | ||||||||
| Dir string | ||||||||
| Addr string | ||||||||
| ShutdownTimeout time.Duration | ||||||||
| } | ||||||||
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| func (s Instance) Start(ctx context.Context) error { | ||||||||
| server := &http.Server{ | ||||||||
| Handler: ServerHandler(s.Dir), | ||||||||
| Addr: s.Addr, | ||||||||
| ReadHeaderTimeout: 3 * time.Second, | ||||||||
| } | ||||||||
| eg, ctx := errgroup.WithContext(ctx) | ||||||||
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anik120 marked this conversation as resolved.
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| // run a server in a go routine | ||||||||
| // server.ListenAndServer() returns under two circumstances | ||||||||
| // 1. If there was an error starting the server | ||||||||
| // 2. If the server was shut down (ErrServerClosed) | ||||||||
| // i.e both are non-nil errors | ||||||||
| eg.Go(func() error { return server.ListenAndServe() }) | ||||||||
| // waiting for one of two things | ||||||||
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anik120 marked this conversation as resolved.
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| // 1. a error is returned from the go routine | ||||||||
| // 2. the runnable's context is cancelled | ||||||||
| if err := eg.Wait(); err != nil && ctx.Err() == nil { | ||||||||
| // we only get here if we're in case 1 (both case 1s) | ||||||||
| return err | ||||||||
| } | ||||||||
| // if the ShutdownTimeout is zero, wait forever to shutdown | ||||||||
| // otherwise force shut down when timeout expires | ||||||||
| sc := context.Background() | ||||||||
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There was a problem hiding this comment. nit:
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There was a problem hiding this comment. How bout |
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| if s.ShutdownTimeout > 0 { | ||||||||
| var scc context.CancelFunc | ||||||||
| sc, scc = context.WithTimeout(context.Background(), s.ShutdownTimeout) | ||||||||
| defer scc() | ||||||||
| } | ||||||||
| // if the runnable's context was cancelled, shut down the server | ||||||||
| return server.Shutdown(sc) | ||||||||
| } | ||||||||
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| func ServerHandler(dir string) http.Handler { | ||||||||
| fs := http.FileServer(http.FS(os.DirFS(dir))) | ||||||||
| return fs | ||||||||
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Comment on lines
+54
to
+55
Collaborator
There was a problem hiding this comment. Nit: Can reduce this to a one liner:
Suggested change
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There was a problem hiding this comment. I would also expect The URL paths will come in with
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There was a problem hiding this comment. What's the benefit of making the path /catalogs/catalogName/all.json? Why not just keep it simple to /catalogName.json?
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There was a problem hiding this comment. The original intention behind |
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| } | ||||||||
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Do we want the http server disabled by default? I figure we probably want all of them enabled so we can start the deprecation/removal process after a new release with these changes.
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I'm still thinking this should probably be set to true by default so that all of the serving methods are available by default in the next release and we can remove the
Package,BundleMetadata, andCatalogMetadatain the next+1 release. That being said that can be done in a follow up if we want and shouldn't block this PRThere was a problem hiding this comment.
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I don't think we even have to wait for the next +1 release. We should be fine just removing those, and switching this to true. But yea let's leave that for a follow up