Working with the bundled NGINX

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NGINX

We provide a fork of NGINX with this chart that we maintain via patch files. This approach was choosen to easier upgrade NGINX chart versions and have a better overview of changes that we made.

Add a new patch

Edit the NGINX manifests like you normally would.
Create a new patch file based on the diff:
```
git diff charts/nginx-ingress/ > scripts/nginx-patches/00_new.patch
```
Multiple patch files can change the same NGINX manifest files. That’s why patches need to be sorted. When adding a new patch, make sure to increment the 00_ above to a number greater than the last patch we have.
Commit the new changes and the patchfile.
Run scripts/update-nginx-chart.sh to validate all patches apply without any uncommited changes.

Changing an existing patch

Apply the patches that are applied before the patch you want to change. For example if you want to edit patch 05:
```
scripts/update-nginx-chart.sh 05
```

Commit the current status.

git add charts/nginx-ingress
git commit -m "WiP"

Apply the change you want to edit.

git apply ./scripts/nginx-updates/05_*.patch

Edit the NGINX manifests.

Update the patch file:

git diff charts/nginx-ingress/ > scripts/nginx-patches/05_updated.patch

Commit the updated manifest and patch files.

git add charts/nginx-ingress/ scripts/
git commit --amend -m "Update patch 05"

Run scripts/update-nginx-chart.sh to validate all patches apply.
Commit the updated manifest and patch files.
```
git commit --amend --no-edit
```

Update the NGINX chart version

Edit the version in update-nginx-chart.sh.
Run scripts/update-nginx-chart.sh to validate all patches apply without any uncommited changes.