fix: "localhost" is not used into Clever Cloud

Dockerfile

@@ -4,13 +4,15 @@ ARG NODE_VERSION=18.19.0
 ARG RUBY_VERSION=3.2.2-r1
 ARG PIP_VERSION=23.3.1-r0
 ARG PRISMA_VERSION=4.16.2
+ARG APP_HOST=localhost
 ARG PORT=3000
 
 FROM node:${NODE_VERSION}-alpine
 
 ARG RUBY_VERSION
 ARG PIP_VERSION
 ARG PRISMA_VERSION
+ARG APP_HOST
 ARG PORT
 
 RUN apk add --no-cache \
@@ -63,6 +65,7 @@ COPY --chown=nextjs:nodejs "public" "./public"
 
 ENV PRISMA_VERSION $PRISMA_VERSION
 
+ENV APP_HOST $APP_HOST
 ENV PORT $PORT
 EXPOSE $PORT
 

README.md

@@ -187,6 +187,8 @@ For each build and runtime (since they are shared), you should have set some env
 
 - `CC_DOCKERFILE`: [TO_DEFINE] _(should be `Dockerfile.prod.clevercloud` for the production environment and `Dockerfile.dev.clevercloud` for the development one. It's used during the build stage on the Clever Cloud side)_
 - `CC_DOCKER_EXPOSED_HTTP_PORT`: `3000` _(it tells to Clever Cloud the port we are listening on)_
+- `APP_HOST`: [GENERATED] _(as of today our commands when starting cannot rely on using `localhost` since Clever Cloud is not providing the local/network IP so you have to look at logs the first time to then adjust this variable. Note only the network one seems constant over time, the localhost one changes at each restart. If it breaks, we could use the domain name)_
+- `PORT`: `3000` _(since Clever Cloud has a default value for this variable we have to override it)_
 - `APP_MODE`: `prod` _(can be `dev` in case you would like to deploy a development environment)_
 - `DATABASE_URL`: `$POSTGRESQL_ADDON_URI` _(you must copy/paste the value provided by Clever Cloud into `$POSTGRESQL_ADDON_URI`, and note you must add as query parameter `sslmode=prefer`)_
 - `MAINTENANCE_API_KEY`: [SECRET] _(random string that can be generated with `openssl rand -base64 32`. Note this is needed to perform maintenance through dedicated API endpoints)_

src/utils/url.ts

@@ -9,7 +9,7 @@ export function getBaseUrl() {
     return '';
   }
 
-  return `http://localhost:${process.env.PORT ?? getListeningPort()}`;
+  return `http://${process.env.NEXT_PUBLIC_APP_HOST ?? 'localhost'}:${process.env.PORT ?? getListeningPort()}`;
 }
 
 export function getListeningPort() {

start-and-wait-to-init.sh

@@ -25,7 +25,7 @@ check_server_and_init() {
   counter=0
 
   while true; do
-    response=$(curl --write-out %{http_code} --silent --output /dev/null http://localhost:$PORT)
+    response=$(curl --write-out %{http_code} --silent --output /dev/null http://$APP_HOST:$PORT)
     if [ "$response" = "200" ]; then
       break
     fi
@@ -44,7 +44,7 @@ check_server_and_init() {
     counter=$((counter+1))
   done
 
-  curl http://localhost:$PORT/api/init
+  curl http://$APP_HOST:$PORT/api/init
 }
 
 # In parallel wait for the server readiness to init some services