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NGINX Server Sample Using Buildpack Generated nginx.conf

Default nginx.conf

When BP_WEB_SERVER=nginx in the build environment, the Paketo NGINX Buildpack will generate an nginx.conf at build time and use that configuration file to set up an NGINX server that starts as PID 1 in the app container.

Building

pack build nginx-no-config --path app \
  --builder paketobuildpacks/builder-jammy-base:latest \
  --env BP_WEB_SERVER=nginx

Running

docker run --tty --rm --env PORT=8080 --publish 8080:8080 nginx-no-config

Viewing

curl -s localhost:8080

That address can also be viewed in your browser.

Configure Server Root

By default, the Paketo NGINX Buildpack generates an nginx.conf that has public as the server root directory. This can be configured by setting BP_WEB_SERVER_ROOT to either an absolute path or a path relative to the app directory. To see this in action, this sample app contains two directories with different sets of static files. You can set BP_WEB_SERVER_ROOT to alternate and see that the server serves the other version of index.html.

Building

pack build nginx-custom-root --path app \
  --builder paketobuildpacks/builder-jammy-base:latest \
  --env BP_WEB_SERVER=nginx \
  --env BP_WEB_SERVER_ROOT=alternate \

Running

docker run --tty --rm --env PORT=8080 --publish 8080:8080 nginx-custom-root

Viewing

curl -s localhost:8080

See that the version of index.html that is in /alternate is served.

Enable Push State

The Paketo NGINX Buildpack allows you to set up push state routing for your application. This means that regardless of the route that is requested, index.html will always be served. This comes in handy if you are serving a Javascript frontend app where the route exists within the app but not on the static file structure.

Building

pack build nginx-push-state --path app \
  --builder paketobuildpacks/builder-jammy-base:latest \
  --env BP_WEB_SERVER=nginx \
  --env BP_WEB_SERVER_ENABLE_PUSH_STATE=true

Running

docker run --tty --rm --env PORT=8080 --publish 8080:8080 nginx-push-state

Viewing

curl -s localhost:8080/test

You should see the contents of index.html regardless of what route you visit

Force HTTPS Redirects

The Paketo NGINX Buildpack allows you to force any HTTP request made to the server to be redirected using the HTTPS protocol.

Building

pack build nginx-force-https --path app \
  --builder paketobuildpacks/builder-jammy-base:latest \
  --env BP_WEB_SERVER=nginx \
  --env BP_WEB_SERVER_FORCE_HTTPS=true

Running

docker run --tty --rm --env PORT=8080 --publish 8080:8080 nginx-force-https

Viewing

curl http://localhost:8080

You should see a HTTP status code 301 and the redirect address should be using the HTTPS protocol.

Basic Authentication

The Paketo NGINX Buildpack allows you to set up basic authentication through a service binding of type htpasswd. The file structure for the binding looks as follows:

binding
├── type
└── .htpasswd

The contents of ./binding/.htpasswd were generated using the htpasswd utility on MacOS:

htpasswd -nb user password

The username is user, password is password.

Building

pack build nginx-basic-auth --path app \
  --builder paketobuildpacks/builder-jammy-base:latest \
  --volume "$(pwd)/binding:/bindings/auth" \
  --env BP_WEB_SERVER=nginx \
  --env SERVICE_BINDING_ROOT=/bindings

Running

docker run --tty --rm \
  --env PORT=8080 \
  --env SERVICE_BINDING_ROOT=/bindings \
  --publish 8080:8080 \
  --volume "$(pwd)/binding:/bindings/auth" \
  nginx-basic-auth

Viewing

curl -s localhost:8080

See that an unauthenticated request results in a HTTP status code 401.

curl -u user:password localhost:8080

See that a request with the correct username and password succeeds.