Bump Node to v20 and add .nvmrc (nginx#1627)

Problem: We don't have a way to keep track of Node version and we're not
using the latest LTS

Solution: Add .nvmrc, set it to v20 and use it in the Workflows and
Makefile.
Also uploads code coverage for the modules.

.github/workflows/ci.yml

@@ -90,8 +90,15 @@ jobs:
       - name: Setup Node.js Environment
         uses: actions/setup-node@60edb5dd545a775178f52524783378180af0d1f8 # v4.0.2
         with:
-          node-version: 18
-      - run: npm --prefix ${{ github.workspace }}/internal/mode/static/nginx/modules install-ci-test
+          node-version-file: .nvmrc
+
+      - name: Run tests
+        run: npm --prefix ${{ github.workspace }}/internal/mode/static/nginx/modules install-ci-test
+
+      - name: Upload coverage reports to Codecov
+        uses: codecov/codecov-action@54bcd8715eee62d40e33596ef5e8f0f48dbbccab # v4.1.0
+        with:
+          token: ${{ secrets.CODECOV_TOKEN }}
 
   binary:
     name: Build Binary

.github/workflows/lint.yml

@@ -6,6 +6,10 @@ on:
       - main
   pull_request:
 
+defaults:
+  run:
+    shell: bash
+
 concurrency:
   group: ${{ github.ref_name }}-lint
   cancel-in-progress: true
@@ -43,6 +47,11 @@ jobs:
         run: |
           echo "version=$(jq -r .devDependencies.prettier ${{ github.workspace }}/internal/mode/static/nginx/modules/package.json)" >> $GITHUB_OUTPUT
 
+      - name: Setup Node.js Environment
+        uses: actions/setup-node@60edb5dd545a775178f52524783378180af0d1f8 # v4.0.2
+        with:
+          node-version-file: .nvmrc
+
       - name: Run Prettier on NJS code
         id: prettier-run
         uses: rutajdash/prettier-cli-action@d42c4325a3b344f3bd4be482bc34de521998d557 # v1.0.2

.nvmrc

@@ -0,0 +1 @@
+20

Makefile

@@ -2,15 +2,16 @@
 VERSION = edge
 GIT_COMMIT = $(shell git rev-parse HEAD || echo "unknown")
 DATE = $(shell date -u +"%Y-%m-%dT%H:%M:%SZ")
-MANIFEST_DIR = $(shell pwd)/deploy/manifests
-CHART_DIR = $(shell pwd)/deploy/helm-chart
+MANIFEST_DIR = $(CURDIR)/deploy/manifests
+CHART_DIR = $(CURDIR)/deploy/helm-chart
 NGINX_CONF_DIR = internal/mode/static/nginx/conf
 NJS_DIR = internal/mode/static/nginx/modules/src
 NGINX_DOCKER_BUILD_PLUS_ARGS = --secret id=nginx-repo.crt,src=nginx-repo.crt --secret id=nginx-repo.key,src=nginx-repo.key
 BUILD_AGENT=local
 TELEMETRY_REPORT_PERIOD = 24h # also configured in goreleaser.yml
 GW_API_VERSION = 1.0.0
 INSTALL_WEBHOOK = false
+NODE_VERSION = $(shell cat .nvmrc)
 
 # go build flags - should not be overridden by the user
 GO_LINKER_FlAGS_VARS = -X main.version=${VERSION} -X main.commit=${GIT_COMMIT} -X main.date=${DATE} -X main.telemetryReportPeriod=${TELEMETRY_REPORT_PERIOD}
@@ -24,7 +25,7 @@ NGINX_PLUS_PREFIX ?= $(PREFIX)/nginx-plus## The name of the nginx plus image. Fo
 TAG ?= $(VERSION:v%=%)## The tag of the image. For example, 0.3.0
 TARGET ?= local## The target of the build. Possible values: local and container
 KIND_KUBE_CONFIG=$${HOME}/.kube/kind/config## The location of the kind kubeconfig
-OUT_DIR ?= $(shell pwd)/build/out## The folder where the binary will be stored
+OUT_DIR ?= $(CURDIR)/build/out## The folder where the binary will be stored
 GOARCH ?= amd64## The architecture of the image and/or binary. For example: amd64 or arm64
 GOOS ?= linux## The OS of the image and/or binary. For example: linux or darwin
 override HELM_TEMPLATE_COMMON_ARGS += --set creator=template --set nameOverride=nginx-gateway## The common options for the Helm template command.
@@ -125,17 +126,17 @@ fmt: ## Run go fmt against code
 .PHONY: njs-fmt
 njs-fmt: ## Run prettier against the njs httpmatches module
 	docker run --rm -w /modules \
-		-v $(PWD)/internal/nginx/modules/:/modules/ \
-		node:18 \
-		/bin/bash -c "npm install && npm run format"
+		-v $(CURDIR)/internal/nginx/modules/:/modules/ \
+		node:${NODE_VERSION} \
+		/bin/bash -c "npm ci && npm run format"
 
 .PHONY: vet
 vet: ## Run go vet against code
 	go vet ./...
 
 .PHONY: lint
 lint: ## Run golangci-lint against code
-	docker run --pull always --rm -v $(shell pwd):/nginx-gateway-fabric -w /nginx-gateway-fabric -v $(shell go env GOCACHE):/cache/go -e GOCACHE=/cache/go -e GOLANGCI_LINT_CACHE=/cache/go -v $(shell go env GOPATH)/pkg:/go/pkg golangci/golangci-lint:latest golangci-lint --color always run
+	docker run --pull always --rm -v $(CURDIR):/nginx-gateway-fabric -w /nginx-gateway-fabric -v $(shell go env GOCACHE):/cache/go -e GOCACHE=/cache/go -e GOLANGCI_LINT_CACHE=/cache/go -v $(shell go env GOPATH)/pkg:/go/pkg golangci/golangci-lint:latest golangci-lint --color always run
 
 .PHONY: unit-test
 unit-test: ## Run unit tests for the go code
@@ -148,9 +149,9 @@ unit-test: ## Run unit tests for the go code
 .PHONY: njs-unit-test
 njs-unit-test: ## Run unit tests for the njs httpmatches module
 	docker run --rm -w /modules \
-		-v $(PWD)/internal/mode/static/nginx/modules:/modules/ \
-		node:18 \
-		/bin/bash -c "npm install && npm test && npm run clean"
+		-v $(CURDIR)/internal/mode/static/nginx/modules:/modules/ \
+		node:${NODE_VERSION} \
+		/bin/bash -c "npm ci && npm test && npm run clean"
 
 .PHONY: lint-helm
 lint-helm: ## Run the helm chart linter

internal/mode/static/nginx/modules/README.md

@@ -6,9 +6,15 @@ This directory contains the [njs](http://nginx.org/en/docs/njs/) modules for NGI
 
 We recommend using [nvm](https://github.com/nvm-sh/nvm/blob/master/README.md) to install the following dependencies:
 
-- [Node.js](https://nodejs.org/en/) (version 1.18)
+- [Node.js](https://nodejs.org/en/) (version 20)
 - [npm](https://docs.npmjs.com/)
 
+If you use nvm, you can switch to the recommended version of Node.js by running:
+
+```shell
+nvm use
+```
+
 Once you've installed Node.js and npm, run `npm install` in this directory to install the rest of the project's
 dependencies.