Firstly, App Engine standard environment does not provide the API libraries present in the App Engine SDK. Therefore, you may have to first migrate to App Engine flexible and then follow the instructions to move to Kubernetes. You can follow the migration steps for this here[1].
With that being said, running an App Engine application on Kubernetes without changing the app code is doable and you can follow the steps to achieve this here[2]. Also, the entry point for the application is the main function in the main package [3][4]. Though, you may have to initialize some parameters for your code by using the init() function found here[5]. As for the “goapp serve” inquiry, this is included with the original App Engine SDK for Go which can be found here[6]. You may choose to create a dockerfile using the “google/cloud-SDK” bundle here[7]. If you require any further technical answers, you may ask your question on the following StackOverflow posting here[8]. I hope this helps! [1] https://cloud.google.com/appengine/docs/flexible/java/migrating [2] https://cloud.google.com/appengine/docs/flexible/python/run-flex-app-on-kubernetes [3] https://golang.org/doc/code.html [4] https://godoc.org/google.golang.org/appengine#Main [5] https://golang.org/doc/effective_go.html#init [6] https://cloud.google.com/appengine/docs/standard/go/tools/using-local-server#running_the_local_development_server [7] https://hub.docker.com/r/google/cloud-sdk/ [8]https://stackoverflow.com/questions/tagged/google-app-engine On Thursday, March 7, 2019 at 2:55:42 PM UTC-5, Philip Mather wrote: > > Hello all, > I have a question that might turn out to be a misunderstanding about how a > typical development process works but it's probably a chance to learn > anyway so... > > I started plugging away at various Google Code labs to bring myself up to > speed with golang, in particular > https://codelabs.developers.google.com/codelabs/nyc-subway-station-locator/index.html > > which uses a basic import net/http, init() to register a handler(), write > hello world type pattern found at > https://codelabs.developers.google.com/codelabs/nyc-subway-station-locator/index.html#2 > > along with a suitable app.yaml to facilitate the end of goal of running you > app with "goapp serve". They extend it from there and eventually "gcloud > app deploy" it. > > Very nice. I changed it to do the London underground and played around > with the JS a bit, blah blah. > > I then decided to containerize this and deploy it to GKE via docker so > that I could fix a static IP to it and call remote APIs that need to > white-list you (hence the static IP). I wrote a docker file, > https://github.com/philipmather/scry.philipmather.dev/blob/master/Dockerfile.scry > > and got that going via "docker build -f Dockerfile.scry -t scry ." and then > say "docker run --rm -p 8080:8080 scry" etc, etc... > > In moving from GAE to GKE obviously I lose whatever "scaffolding" (" > google.golang.org/appengine" ?) it is that GAE provides and replaced > init() with a main() that constructs a ditty little web server. This all > works great and the build time isn't a total killer but I miss being able > to tweak the files with "goapp serve" running and see the result "live" as > it were, especially as a large chunk of the app is Javascript working > against the Maps API. > > So... Is it possible to construct something that can do both? Instead of > porting the contents of init() to a main() should I have simply kept > something like https://godoc.org/google.golang.org/appengine#Main, > imported "google.golang.org/appengine" and continued my app in it's own > package (instead of main?)? > > I'm aware I can use cloud builder and triggers to add more automagic to my > process but nothing seems to have the immediacy of "goapp serve"? I feel > like I've missed something somewhere? Searched high and low and can't find > anyone doing what I'm aiming for? Any pointers appreciated! > > Regards, > Phil > -- You received this message because you are subscribed to the Google Groups "Google App Engine" group. To unsubscribe from this group and stop receiving emails from it, send an email to google-appengine+unsubscr...@googlegroups.com. To post to this group, send email to google-appengine@googlegroups.com. Visit this group at https://groups.google.com/group/google-appengine. To view this discussion on the web visit https://groups.google.com/d/msgid/google-appengine/c7a719c3-6d9d-42fa-8d15-cebeb288a8de%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
