Add initial E2E tests [running locally]

[Callisto13]

The long awaited E2E tests!! Will they live up to the hype?!

Probably not since this is only a small piece from a long list and there is no guarantee whatsoever that they will work for anyone else.

This PR adds:

• A Dockerfile (and friends)
  • Which can be used to run a container (in a very specific way) with all the "things" one needs to play with flintlockd
  • There are some make commands to interact with said Dockerfile, I have set up a remote repo so people can pull if they don't feel like building, but that is non essential for now.
• Some initial CRUD tests for flintlockd
  • These are written in Go
  • They are all one test, because that is cheaper. This can be expanded/changed as we go.
  • They test only the happy path, as I am hoping all the control logic and edges will be caught in Units.

This PR removes:

• All the previously existing Terraform stuff

This PR does not:

• Do many things
• One of which is run any tests in Equinix as part of a nightly build

This is just the initial bit to get us by, so much will change, for instance:

• Right now there are various placeholder checks in test/e2e/e2e_test.go which ensure a mVM has started. This was just until the Get was merged, so I am actually gonna replace that right now this second. Done
• The devicemapper thinpool setup is currently sitting in an entrypoint script and run on container start. This is very finicky when it comes to tearing down, so I am going to move that into the test itself. (Balazs it was the trap bit which was irritating me earlier. Like always the option you choose to be a shortcut is the most time consuming.)
• There is a very poorly named thing which handles starting and cleaning containerd and flintlockd processes (test/e2e/utils/runner.go), so please suggest whatever.
• The container image is built by calling a bootstrap.sh script. I might change it because this is kindof useful and also kindof not.
  • Useful: other people can run the script on their machine to set up their stuff so it is multipurpose
  • Not: if one bit of the script changes then basically all the image layers need to be rebuilt which is a bummer
• Does it even need to run in a container at all tho?! I mean if we have to mount /dev and share the ipc namespace .....
• We may also want to use more Ginkgo things for this. Eg, they have a nice teardown wrapper which will capture signals and ensure teardown/cleanup is still executed if the tests are interrupted.

Coming soon to a test suite near you:

• Configurable params!!
• A metal option!!!
• Some sexy python tooling!!
• Developer docs!!
• And much more!!!

these are all in various states of preparedness and idk which order they will appear in

[codecov-commenter]

Codecov Report

Merging #187 (934db93) into main (7b95d77) will not change coverage.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##             main     #187   +/-   ##
=======================================
  Coverage   54.89%   54.89%           
=======================================
  Files          45       45           
  Lines        1991     1991           
=======================================
  Hits         1093     1093           
  Misses        791      791           
  Partials      107      107           

Impacted Files	Coverage Δ
core/application/errors.go	0.00% <ø> (ø)
core/models/volumes.go	0.00% <ø> (ø)
core/application/query.go	100.00% <100.00%> (ø)

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[jmickey]

Brilliant stuff! Read it twice and the only thing I found was a rogue space

[Callisto13]

@jmickey updated to include Get and List

[jmickey]

Bootstrapper?

Also not coming up with any decent ideas.

[Callisto13]

there is more coming to it soon, so maybe inspiration will strike

[Callisto13]

sorry i had to re-push + dismiss bc apparently my last commit was not signed 🤦‍♀️

[Callisto13]

oh ffs

[Callisto13]

LOL and now none of them have it