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app template

template repository for next.js apps.

how to run

prerequisites:

Tip

you can use pnpm to install the required node.js version with pnpm env use 22 --global

set required environment variables in .env.local:

cp .env.local.example .env.local

also, set environment variables required by validation and deployment github actions. use "variables" for every environment variable prefixed with NEXT_PUBLIC_, and "secrets" for all others.

the default template accepts the following variables:

  • NEXT_PUBLIC_REDMINE_ID (required): service issue for this application in the acdh-ch redmine issue tracker.
  • NEXT_PUBLIC_APP_BASE_URL (required): the base url for this application. the default of "http://localhost:3000" should be fine for local development.
  • NEXT_PUBLIC_BOTS (required): whether this website can be indexed by web crawlers like the google bot. supported values are "disabled" and "enabled", defaults to "disabled".
  • NEXT_PUBLIC_MATOMO_BASE_URL and NEXT_PUBLIC_MATOMO_ID (optional): set these to support client-side analytics with matomo.
  • NEXT_PUBLIC_GOOGLE_SITE_VERIFICATION (optional): set this to verify site ownership for google search console.

when adding new environment variables, don't forget to add them to .env.local.example as well.

install dependencies:

pnpm install

run a development server on http://localhost:3000:

pnpm run dev

Tip

this template supports developing in containers. when opening the project in your editor, you should be prompted to re-open it in a devcontainer.

how to deploy

  • ask a sysadmin to create a new acdh-ch kubernetes project.
  • create a new namespace in that project via rancher, and set the KUBE_NAMESPACE github variable to that namespace
  • adjust the app_name, which will be the name of the deployment in the above namespace.
  • set the PUBLIC_URL github variable to the application's public url (e.g. "https://my-app.acdh-ch-dev.oeaw.ac.at"), and set the KUBE_INGRESS_BASE_DOMAIN to the public url's base domain (e.g. "acdh-ch-dev.oeaw.ac.at"). PUBLIC_URL should match NEXT_PUBLIC_APP_BASE_URL.
  • when deploying to a production domain (i.e. a domain not ending in "acdh-ch-dev.oeaw.ac.at"), set HELM_UPGRADE_EXTRA_ARGS to --set 'ingress.annotations.cert-manager\.io/cluster-issuer=acdh-prod' for "acdh.oeaw.ac.at" domains, or to --set 'ingress.annotations.cert-manager\.io/cluster-issuer=letsencrypt-prod' for any other non-oeaw domains, and ensure KUBE_INGRESS_BASE_DOMAIN is set correctly.
  • if you haven't yet, create a service issue in the acdh-ch redmine issue tracker, and set the SERVICE_ID github variable to the issue number. this should match the NEXT_PUBLIC_REDMINE_ID variable in your .env.local file.
  • ensure required build args (prefixed with NEXT_PUBLIC_) are referenced in both the Dockerfile, as well as the validation and deployment pipelines, and set as github variables.
  • ensure required runtime environment variables are referenced in the validation and deployment pipelines, and set as github secrets. github secrets need to be prefixed with K8S_SECRET_ to be automatically copied to the runtime environment. in case you need secrets in the docker build context, you can mount a secret in the Dockerfile.
  • ensure both the github repository, as well as the package registry is set to public.
  • the NEXT_PUBLIC_BOTS variable defaults to "disabled", which signals to web crawlers that the website should not be indexed. when deploying to a production domain (i.e. a domain not ending in "acdh-ch-dev.oeaw.ac.at") this should be set to "enabled".

if everything is set up correctly, every git push to the main branch will create a new deployment if the validation pipeline passes.

you can reference the template repository for a working setup.

template variants

  • variant/with-commitlint branch: enables commitlint and runs it as a git hook, and as part of the validation workflow in a github action.
  • variant/with-keystatic branch: adds keystatic for content management. allows editing .mdx and .json files, and pushes changes to github.
  • variant/with-opentelemetry branch: adds instrumentation to collect tracing information and send it to an opentelementry collector.
  • variant/with-sentry branch: enables error reporting with sentry.
  • variant/with-single-locale branch: adjusts the template to support a single pre-configured locale only, and removes internationalised routing. ui strings are still managed in the messages folder to make it easy to activate full i18n support later if needed.