chore: build docker image

.github/workflows/docker.yaml

@@ -0,0 +1,98 @@
+name: Docker
+
+on:
+  push:
+    branches:
+      - main
+    paths:
+      - 'src/**'
+      - '*.ts'
+      - '*.json'
+      - '*.yaml'
+      - Dockerfile
+      - .github/workflows/docker.yaml
+  pull_request:
+    branches:
+      - main
+    paths:
+      - 'src/**'
+      - '*.ts'
+      - '*.json'
+      - '*.yaml'
+      - Dockerfile
+      - .github/workflows/docker.yaml
+  release:
+    types:
+      - published
+
+env:
+  REGISTRY: ghcr.io
+  IMAGE_NAME: ${{ github.repository }}
+  PLATFORMS: ${{ github.event_name == 'pull_request' && 'linux/amd64' || 'linux/amd64,linux/arm64' }}
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+          fetch-tags: true
+
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v2
+
+      - name: "Generate Build ID (main)"
+        if: github.ref == 'refs/heads/main' && github.event_name == 'push'
+        run: |
+          branch=${GITHUB_REF##*/}
+          sha=${GITHUB_SHA::8}
+          ts=$(date +%s)
+          echo "BUILD_ID=${branch}-${ts}-${sha}" >> $GITHUB_ENV
+
+      - name: "Generate Build ID (PR)"
+        if: github.event_name == 'pull_request'
+        run: |
+          echo "BUILD_ID=pr-${{ github.event.number }}-$GITHUB_RUN_ID" >> $GITHUB_ENV
+
+      - name: "Generate Build ID (Release)"
+        if: github.event_name == 'release'
+        run: |
+          echo "BUILD_ID=${GITHUB_REF##*/}" >> $GITHUB_ENV
+
+      - name: Log in to the Container registry
+        uses: docker/login-action@v2
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v2
+
+      - name: Extract metadata (tags, labels) for Docker
+        id: meta
+        uses: docker/metadata-action@v4
+        with:
+          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
+          tags: |
+            type=ref,event=pr
+            type=ref,event=branch
+            type=raw,value=${{ env.BUILD_ID }}
+            type=raw,value=latest,enable=${{ github.ref == format('refs/heads/{0}', github.event.repository.default_branch) }}
+
+      - name: Build and push Docker image
+        uses: docker/build-push-action@v4
+        with:
+          context: .
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+          platforms: ${{ env.PLATFORMS }}
+          cache-from: type=gha
+          cache-to: type=gha,mode=max

Dockerfile

@@ -0,0 +1,70 @@
+# syntax=docker.io/docker/dockerfile:1
+
+FROM node:22-alpine AS base
+
+# Install dependencies only when needed
+FROM base AS deps
+# Check https://github.com/nodejs/docker-node/tree/b4117f9333da4138b03a546ec926ef50a31506c3#nodealpine to understand why libc6-compat might be needed.
+RUN apk add --no-cache libc6-compat
+WORKDIR /app
+
+# Install dependencies based on the preferred package manager
+COPY package.json yarn.lock* package-lock.json* pnpm-lock.yaml* .npmrc* ./
+RUN \
+  if [ -f yarn.lock ]; then yarn --frozen-lockfile; \
+  elif [ -f package-lock.json ]; then npm ci; \
+  elif [ -f pnpm-lock.yaml ]; then corepack enable pnpm && pnpm i --frozen-lockfile; \
+  else echo "Lockfile not found." && exit 1; \
+  fi
+
+
+# Rebuild the source code only when needed
+FROM base AS builder
+WORKDIR /app
+COPY --from=deps /app/node_modules ./node_modules
+COPY . .
+
+# Next.js collects completely anonymous telemetry data about general usage.
+# Learn more here: https://nextjs.org/telemetry
+# Uncomment the following line in case you want to disable telemetry during the build.
+ENV NEXT_TELEMETRY_DISABLED=1
+
+RUN \
+  if [ -f yarn.lock ]; then yarn run build; \
+  elif [ -f package-lock.json ]; then npm run build; \
+  elif [ -f pnpm-lock.yaml ]; then corepack enable pnpm && pnpm run build; \
+  else echo "Lockfile not found." && exit 1; \
+  fi
+
+# Production image, copy all the files and run next
+FROM base AS runner
+WORKDIR /app
+
+ENV NODE_ENV=production
+# Uncomment the following line in case you want to disable telemetry during runtime.
+# ENV NEXT_TELEMETRY_DISABLED=1
+
+RUN addgroup --system --gid 1001 nodejs
+RUN adduser --system --uid 1001 nextjs
+
+COPY --from=builder /app/public ./public
+
+# Set the correct permission for prerender cache
+RUN mkdir .next
+RUN chown nextjs:nodejs .next
+
+# Automatically leverage output traces to reduce image size
+# https://nextjs.org/docs/advanced-features/output-file-tracing
+COPY --from=builder --chown=nextjs:nodejs /app/.next/standalone ./
+COPY --from=builder --chown=nextjs:nodejs /app/.next/static ./.next/static
+
+USER nextjs
+
+EXPOSE 3000
+
+ENV PORT=3000
+
+# server.js is created by next build from the standalone output
+# https://nextjs.org/docs/pages/api-reference/next-config-js/output
+ENV HOSTNAME="0.0.0.0"
+CMD ["node", "server.js"]

next.config.ts

@@ -1,7 +1,7 @@
 import type { NextConfig } from "next";
 
 const nextConfig: NextConfig = {
-  /* config options here */
+  output: "standalone",
 };
 
 export default nextConfig;

public/humans.txt

@@ -0,0 +1,3 @@
+/* TEAM */
+Name: Matthieu Moquet
+Contact: matthieu [at] moquet [dot] net

src/app/alerts/[handle]/page.tsx

@@ -1,6 +1,4 @@
 import { AlertsTemplate } from "@/components/alerts/template"
-import { config } from "@/config"
-import { notFound } from "next/navigation"
 
 type Props = {
   params: Promise<{ handle: string }>
@@ -9,10 +7,6 @@ type Props = {
 export default async function AlertsViewPage(props: Props) {
   const { handle } = await props.params
 
-  if (!config.views[handle]) {
-    return notFound()
-  }
-
   return (
     <AlertsTemplate view={handle} />
   )

src/app/api/clusters/[slug]/alerts/route.ts

@@ -1,10 +1,11 @@
-import { config } from "@/config";
+import { getConfig } from "@/config";
 
 export async function GET(
   _: Request,
   { params }: { params: Promise<{ slug: string }> }
 ) {
   const cluster = (await params).slug
+  const config = await getConfig()
 
   const endpoint = config.clusters.find((c) => c.name === cluster)?.endpoint
   if (!endpoint) {

src/app/api/config/route.ts

@@ -1,6 +1,17 @@
-import { clientConfig } from "@/config/client";
+import { getConfig } from "@/config";
 
 export async function GET(_: Request) {
+  const config = await getConfig()
+
+  // Remove the endpoints from the client config
+  const clientConfig = {
+    ...config,
+    clusters: config.clusters.map((c) => ({
+      ...c,
+      endpoint: ""
+    })),
+  }
+
   return new Response(JSON.stringify(clientConfig), {
     headers: { "Content-Type": "application/json" },
   });

src/app/layout.tsx

@@ -1,12 +1,13 @@
 import type { Metadata } from "next";
 import localFont from "next/font/local";
 import "./globals.css";
-import { clientConfig } from "@/config/client";
 import { ConfigProvider } from "@/contexts/config";
 import { ThemeProvider } from "next-themes";
 import { AppLayout } from "@/components/layout/app-layout";
 import { AlertsProvider } from "@/contexts/alerts";
 
+export const dynamic = "force-dynamic";
+
 const geistSans = localFont({
   src: "./fonts/GeistVF.woff",
   variable: "--font-geist-sans",
@@ -23,7 +24,7 @@ export const metadata: Metadata = {
   description: "Dashboard for AlertManager Prometheus",
 };
 
-export default function RootLayout({
+export default async function RootLayout({
   children,
 }: Readonly<{
   children: React.ReactNode;
@@ -39,7 +40,7 @@ export default function RootLayout({
           enableSystem
           disableTransitionOnChange
         >
-          <ConfigProvider config={clientConfig}>
+          <ConfigProvider>
             <AlertsProvider>
               <AppLayout>
                 {children}

src/components/alerts/template.tsx

@@ -10,7 +10,7 @@ import { AlertModal } from './alert-modal'
 import { LabelFilter, Group } from './types'
 import { useConfig } from '@/contexts/config'
 import { alertFilter, alertSort } from './utils'
-
+import { notFound } from 'next/navigation'
 
 type Props = {
   view: string
@@ -22,6 +22,10 @@ export function AlertsTemplate(props: Props) {
   const { alerts, loading, errors, refreshAlerts } = useAlerts()
   const [selectedAlert, setSelectedAlert] = useState<Alert | null>(null)
 
+  if (!config.views[view]) {
+    return notFound()
+  }
+
   const { filters, groupBy } = config.views[view]
 
   // Flatten alerts

src/config/client.ts

@@ -1,4 +1,4 @@
-import { config } from "."
+import { config } from "./server"
 
 // Remove the endpoints from the client config
 export const clientConfig = {

src/config/index.ts

@@ -1,4 +1,4 @@
-import { parseConfigFile, resolveConfigFile, resolveEnvVars} from './utils'
+import { parseConfigFile, resolveConfigFile, resolveEnvVars } from './utils'
 import { Config, ConfigSchema } from './types'
 
 const defaultConfigFiles = [
@@ -7,16 +7,34 @@ const defaultConfigFiles = [
   'config.yml',
 ]
 
-const configPath = process.env.APP_CONFIG || await resolveConfigFile(defaultConfigFiles, process.cwd())
+/* eslint-disable @typescript-eslint/no-explicit-any */
+const memoize = <T extends (...args: any[]) => Promise<any>>(fn: T) => {
+  const cache = new Map<string, ReturnType<T>>()
+  return async function(...args: Parameters<T>): Promise<ReturnType<T>> {
+    const key = JSON.stringify(args)
+    if (cache.has(key)) {
+      return cache.get(key) as ReturnType<T>
+    }
+    const result = await fn(...args)
+    cache.set(key, result)
+    return result
+  }
+}
 
-console.log(`Using config file: ${configPath}`)
+export const getConfig = memoize(async function() {
+  const configPath = process.env.APP_CONFIG || await resolveConfigFile(defaultConfigFiles, process.cwd())
 
-const parsedConfig = await parseConfigFile(configPath)
-const resolvedConfig = resolveEnvVars(parsedConfig)
+  console.log(`Using config file: ${configPath}`)
 
-const validatedConfig = ConfigSchema.safeParse(resolvedConfig)
-if (!validatedConfig.success) {
-  throw new Error('Invalid config file: ' + validatedConfig.error.errors)
-}
+  const parsedConfig = await parseConfigFile(configPath)
+  const resolvedConfig = resolveEnvVars(parsedConfig)
+
+  const validatedConfig = ConfigSchema.safeParse(resolvedConfig)
+  if (!validatedConfig.success) {
+    throw new Error('Invalid config file: ' + validatedConfig.error.errors)
+  }
+
+  const config: Config = validatedConfig.data
 
-export const config: Config = validatedConfig.data
+  return config
+})

src/config/server.ts

@@ -0,0 +1,3 @@
+import { getConfig } from "."
+
+export const config = await getConfig()

src/contexts/config.tsx

@@ -1,6 +1,6 @@
 'use client'
 
-import React, { createContext, useContext, ReactNode } from 'react'
+import React, { createContext, useContext, ReactNode, useState, useEffect } from 'react'
 import { Config } from '@/config/types'
 
 interface ConfigContextProps {
@@ -9,7 +9,36 @@ interface ConfigContextProps {
 
 const ConfigContext = createContext<ConfigContextProps | undefined>(undefined)
 
-export const ConfigProvider = ({ children, config }: { children: ReactNode, config: Config }) => {
+export const ConfigProvider = ({ children }: { children: ReactNode }) => {
+  const [config, setConfig] = useState<Config | null>(null)
+  const [error, setError] = useState<string | null>(null)
+
+  useEffect(() => {
+    const fetchConfig = async () => {
+      try {
+        const response = await fetch('/api/config')
+        if (!response.ok) {
+          throw new Error('Network response was not ok')
+        }
+        const data = await response.json()
+        setConfig(data)
+      } catch (error) {
+        console.error('Failed to fetch config:', error)
+        setError("Failed to fetch config")
+      }
+    }
+
+    fetchConfig()
+  }, [])
+
+  if (error !== null) {
+    return <div>{error}</div>
+  }
+
+  if (config === null) {
+    return <div>Loading...</div>
+  }
+
   return (
     <ConfigContext.Provider value={{ config }}>
       {children}