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Add Restful service #29

Merged
merged 1 commit into from
Apr 27, 2023
Merged

Add Restful service #29

merged 1 commit into from
Apr 27, 2023

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baude
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@baude baude commented Apr 23, 2023

add restful service to VFKit which defaults to tcp://localhost:8081. The URL can be changed using the newly introduced --restful-uri option. The schemes may be tcp or unix (unix domain socket). The service for the unix domain implementation is incomplete and should be considered a TODO still. users can also opt out of the service with a --restful-uri none.

the restful service now replies to three endpoints:

/vm/state GET which returns the state of the vm
/vm/state POST which allows for a state change
/vm/inspect GET which returns basic information about the virtual machine

error handling for the endpoints needs to be completed still. these endpoints should return http response codes (like 200) based on the error handling. this can be completed in a subsequent PR.

/version GET should also probably be added. I was unsure if we should return the version of vfkit (my first inclination) or some sort of API version. maybe we should return both?

added tests for new content where applicable

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Here is a first round of comments, I need to take a closer look at the REST API.

cmd/vfkit/root.go Outdated Show resolved Hide resolved
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/version GET should also probably be added. I was unsure if we should return the version of vfkit (my first inclination) or some sort of API version. maybe we should return both?

yeah vfkit version is good to have (possibly with git hash if that's easy to get).
API version, if that's about the REST API, I'd keep this for later. I'm sure we'll want to bump the API some day, but will we do this through a /version entry point, through a /v2 in the URL, .. I have no idea.

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baude commented Apr 24, 2023

should be updated now

@baude baude force-pushed the rest branch 3 times, most recently from 8a21b0f to bdbc7d3 Compare April 25, 2023 19:16
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Overall looks good! A few comments up for discussion

pkg/cmdline/cmdline_test.go Outdated Show resolved Hide resolved
cmd.Flags().StringArrayVarP(&opts.Devices, "device", "d", []string{}, "devices")

cmd.Flags().StringVar(&opts.LogLevel, "log-level", "", "set log level")
cmd.Flags().StringVar(&opts.RestfulURI, "restful-uri", DefaultRestfulURI, "URI address for RestFul services")
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Any reason for using none:// instead of "" as the default?

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i prefer this approach because the default IS none and this saves us a conditional check later ...

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/lgtm
/approve

add restful service to VFKit which defaults to `tcp://localhost:8081`.  The URL can be changed using the newly introduced --restful-uri
option.  The schemes may be `tcp` or `unix` (unix domain socket).  The service for the unix domain implementation is incomplete and
should be considered a TODO still.  users can also opt out of the service with a `--restful-uri none`.

the restful service now replies to three endpoints:

/vm/state GET which returns the state of the vm
/vm/state POST which allows for a state change
/vm/inspect GET which returns basic information about the virtual machine

error handling for the endpoints needs to be completed still.  these endpoints should return http response codes (like 200) based on
the error handling.  this can be completed in a subsequent PR.

/version GET should also probably be added. I was unsure if we should return the version of vfkit (my first inclination) or some
sort of API version.  maybe we should return both?

added tests for new content where applicable

Signed-off-by: Brent Baude <[email protected]>
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baude commented Apr 26, 2023

I have updated the PR per your wishes

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/lgtm
/approve

@openshift-ci openshift-ci bot added the lgtm label Apr 27, 2023
@baude baude added the approved label Apr 27, 2023
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openshift-ci bot commented Apr 27, 2023

[APPROVALNOTIFIER] This PR is APPROVED

Approval requirements bypassed by manually added approval.

This pull-request has been approved by: baude, cfergeau

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@baude baude merged commit 6a9c788 into crc-org:main Apr 27, 2023
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2 participants