Add kind e2e

[maiqueb]

This PR adds a kind based cluster to check the e2e functionality of the repo.

It simply runs the e2e scripts of the multus project, which for now, is more than enough for us.

Follow-up PRs will add a golang based e2e test suite to check the functionality of the project.

Fixes: #7

[oshoval]

Thanks

[oshoval]

you might want to add here SIGINT as well (unless you remove the other one)

[maiqueb]

Why ? It still works:

sudo --preserve-env=PATH OCI_BIN=podman hack/e2e-kind-cluster-setup.sh
+ CNI_VERSION=0.4.0
+ OCI_BIN=podman
+ IMG_REGISTRY=localhost:5000/maiqueb
+ trap cleanup EXIT
+ setup_cluster
+ git clone https://github.com/k8snetworkplumbingwg/multus-cni/
Cloning into 'multus-cni'...
remote: Enumerating objects: 38696, done.
remote: Counting objects: 100% (1263/1263), done.
remote: Compressing objects: 100% (749/749), done.
remote: Total 38696 (delta 458), reused 1208 (delta 439), pack-reused 37433
Receiving objects: 100% (38696/38696), 49.67 MiB | 12.64 MiB/s, done.
Resolving deltas: 100% (17230/17230), done.
+ pushd multus-cni/e2e
/home/mduarted/github/multus-dynamic-networks-controller/multus-cni/e2e /home/mduarted/github/multus-dynamic-networks-controller
+ trap popd RETURN SIGINT
+ ./get_tools.sh
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
  0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0
100 6511k  100 6511k    0     0  7275k      0 --:--:-- --:--:-- --:--:-- 32.7M
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100 42.9M  100 42.9M    0     0  37.6M      0  0:00:01  0:00:01 --:--:-- 37.6M
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
  0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0^C++ popd
/home/mduarted/github/multus-dynamic-networks-controller
+ cleanup
+ rm -rf multus-cni
+ git checkout -- manifests/

EDIT: If we omit the SIGINT in the inner trap (where I popd) the script fails when SIGINT is used (the SIGINT signal skips the popd and the cleanup function will fail, since it is executed from the wrong path:

sudo --preserve-env=PATH OCI_BIN=podman hack/e2e-kind-cluster-setup.sh
+ CNI_VERSION=0.4.0
+ OCI_BIN=podman
+ IMG_REGISTRY=localhost:5000/maiqueb
+ trap cleanup EXIT
+ setup_cluster
+ git clone https://github.com/k8snetworkplumbingwg/multus-cni/
Cloning into 'multus-cni'...
remote: Enumerating objects: 38696, done.
remote: Counting objects: 100% (1263/1263), done.
remote: Compressing objects: 100% (749/749), done.
remote: Total 38696 (delta 460), reused 1209 (delta 439), pack-reused 37433
Receiving objects: 100% (38696/38696), 49.71 MiB | 14.57 MiB/s, done.
Resolving deltas: 100% (17224/17224), done.
+ pushd multus-cni/e2e
/home/mduarted/github/multus-dynamic-networks-controller/multus-cni/e2e /home/mduarted/github/multus-dynamic-networks-controller
+ trap popd RETURN
+ ./get_tools.sh
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
  0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0
100 6511k  100 6511k    0     0  4372k      0  0:00:01  0:00:01 --:--:--  9.8M
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
  9 42.9M    9 4094k    0     0  10.5M      0  0:00:04 --:--:--  0:00:04 10.4M^C++ cleanup
++ rm -rf multus-cni
++ git checkout -- manifests/
error: pathspec 'manifests/' did not match any file(s) known to git

[oshoval]

note for a possible follow PR: maybe worth to use generic registry name instead maiqueb ?
(and then the deploy need to be changed as well of course)

beside the latest nits, conceptual lgtm, thanks

[maiqueb]

that'll happen if / when this repo is handed off to the k8snetworkplumbingwg.

[oshoval]

Thanks