New kustomize-deployment approach is super slow

[vdboor]

Is this a BUG REPORT or FEATURE REQUEST? bug

• Kubernetes version: 1.14.1
• Docker for Mac: edge, 2.0.4.1

What happened:

The new installation instructions use kustomize (cool), but this is really slow with large remote repositories: #1132 one of the contributors of kustomize doesn't recommend using this appoach.

The old approach took a few seconds:

kubectl apply -f https://raw.githubusercontent.com/kubernetes/ingress-nginx/nginx-0.24.1/deploy/mandatory.yaml
kubectl apply -f https://raw.githubusercontent.com/kubernetes/ingress-nginx/nginx-0.24.1/deploy/provider/cloud-generic.yaml

Yet the equivalent strategy in kustomize takes minutes:

$ time kustomize build . >/dev/null

real	0m40.918s
user	0m9.473s
sys	0m5.607s

kustomization.yml:

apiVersion: kustomize.config.k8s.io/v1beta1
kind: Kustomization
namespace: ingress-nginx
bases:
- github.com/kubernetes/ingress-nginx/deploy/cluster-wide
- github.com/kubernetes/ingress-nginx/deploy/cloud-generic

This looks like the entire repository (10MB) is cloned multiple times, given the time it takes:

$ time git clone  https://github.com/kubernetes/ingress-nginx.git
Cloning into 'ingress-nginx'...
remote: Enumerating objects: 32, done.
remote: Counting objects: 100% (32/32), done.
remote: Compressing objects: 100% (31/31), done.
remote: Total 76944 (delta 3), reused 6 (delta 1), pack-reused 76912
Receiving objects: 100% (76944/76944), 96.51 MiB | 9.92 MiB/s, done.
Resolving deltas: 100% (41260/41260), done.
Checking out files: 100% (4644/4644), done.

real	0m13.121s
user	0m4.330s
sys	0m2.126s

Expected:

Either:

• kustomize is fixed to handle quick partial git pulls.
• a smaller repository / submodule is used for deployments
• the old approach is restored

[aledbf]

@vdboor apologies for this issue. I am planning to restore the old approach until kustomize fixes this issue.