fix(docker): further reduce OpenShift next build memory use

Hoist pnpm node_modules, cap static-generation workers to one,
and set CI build env vars directly in the Dockerfile.

Co-authored-by: Cursor <cursoragent@cursor.com>

Author: mrTuomoK

.npmrc

@@ -1 +1,6 @@
 engine-strict=true
+
+# Flat node_modules layout (yarn-like). Reduces memory during Next.js build workers
+# with pnpm's default isolated linker + symlinks. Required for standalone tracing.
+# @see https://github.com/vercel/next.js/issues/48017
+node-linker=hoisted

Dockerfile

@@ -80,7 +80,8 @@ FROM ${BUILDER_FROM_IMAGE} AS builder
 # Build ARGS
 ARG PROJECT
 ARG CMS_ORIGIN
-ARG SKIP_BUILD_STATIC_GENERATION
+# Default 1 for review/dev image builds; release pipelines override with 0.
+ARG SKIP_BUILD_STATIC_GENERATION=1
 ARG NEXT_DISABLE_SOURCEMAPS
 ARG FEDERATION_ROUTER_ENDPOINT
 ARG LINKEDEVENTS_EVENT_ENDPOINT
@@ -140,7 +141,13 @@ USER default
 ENV HUSKY=0
 RUN pnpm install --frozen-lockfile --filter ${PROJECT}...
 RUN pnpm --filter ${PROJECT} run share-static-hardlink
-ENV SKIP_BUILD_STATIC_GENERATION=${SKIP_BUILD_STATIC_GENERATION}
+# OpenShift build pods are memory-constrained. Match GitHub CI build settings and
+# limit Next.js static-generation workers (default is 4 parallel child processes).
+ENV SKIP_BUILD_STATIC_GENERATION=${SKIP_BUILD_STATIC_GENERATION} \
+    NEXTJS_IGNORE_ESLINT=1 \
+    NEXTJS_IGNORE_TYPECHECK=1 \
+    NEXT_BUILD_CPUS=1 \
+    NEXT_TELEMETRY_DISABLED=1
 RUN pnpm --filter ${PROJECT} run build
 
 # Does not play well with buildkit on CI

next.base.config.mjs

@@ -15,6 +15,9 @@ const trueEnv = ['true', '1', 'yes'];
 // const isProd = process.env.NODE_ENV === 'production';
 const isDevelopment = process.env.NODE_ENV === 'development';
 const isCI = trueEnv.includes(process.env?.CI ?? 'false');
+const nextBuildCpus = process.env.NEXT_BUILD_CPUS
+  ? Number(process.env.NEXT_BUILD_CPUS)
+  : undefined;
 
 const NEXTJS_IGNORE_ESLINT = trueEnv.includes(
   process.env?.NEXTJS_IGNORE_ESLINT ?? 'false'
@@ -136,6 +139,9 @@ const nextBaseConfig = ({
       // Experimental monorepo support
       externalDir: true,
       scrollRestoration: true,
+      // Limit parallel page-data workers in memory-constrained Docker/OpenShift builds.
+      ...(nextBuildCpus ? { cpus: nextBuildCpus } : {}),
+      ...(nextBuildCpus ? { webpackMemoryOptimizations: true } : {}),
     },
 
     // 🚨 TURBOPACK CONFIGURATION

pipelines/harrastukset-ui-release.yml

@@ -36,6 +36,7 @@ extends:
     # Does not contain all buildArguments, the rest located in harrastukset-pipelines/harrastukset-variables-staging.yml and harrastukset-variables-common.yml
     # The values here will override the values defined in the harrastukset-pipelines repository
     buildArgs:
+      SKIP_BUILD_STATIC_GENERATION: 0
       FEDERATION_ROUTER_ENDPOINT: https://harrastukset-router.api.hel.fi/
       CMS_ORIGIN: https://harrastus.content.api.hel.fi
       LINKEDEVENTS_EVENT_ENDPOINT: https://api.hel.fi/linkedevents/v1/event
@@ -44,6 +45,7 @@ extends:
       NEXT_PUBLIC_DEBUG: 0
       NEXT_PUBLIC_MATOMO_ENABLED: 1
     buildArgsStage:
+      SKIP_BUILD_STATIC_GENERATION: 0
       FEDERATION_ROUTER_ENDPOINT: https://events-graphql-federation-hobbies.stage.hel.ninja/
       CMS_ORIGIN: https://harrastus.content.api.hel.fi
       LINKEDEVENTS_EVENT_ENDPOINT: https://api.hel.fi/linkedevents/v1/event
@@ -52,6 +54,7 @@ extends:
       NEXT_PUBLIC_DEBUG: 0
       NEXT_PUBLIC_MATOMO_ENABLED: 1
     buildArgsTest:
+      SKIP_BUILD_STATIC_GENERATION: 0
       FEDERATION_ROUTER_ENDPOINT: https://events-graphql-federation-hobbies.test.hel.ninja/
       CMS_ORIGIN: https://harrastus.app-staging.hkih.hion.dev
       LINKEDEVENTS_EVENT_ENDPOINT: https://api.hel.fi/linkedevents/v1/event
@@ -72,4 +75,3 @@ extends:
       FEDERATION_ROUTER_ENDPOINT: https://events-graphql-federation-hobbies.test.hel.ninja/
       CMS_ORIGIN: https://harrastus.app-staging.hkih.hion.dev
       LINKEDEVENTS_EVENT_ENDPOINT: https://api.hel.fi/linkedevents/v1/event
-

pipelines/liikunta-ui-release.yml

@@ -36,6 +36,7 @@ extends:
     # Does not contain all buildArguments, the rest located in liikunta-pipelines/liikunta-variables-staging.yml and liikunta-variables-common.yml
     # The values here will override the values defined in the liikunta-pipelines repository
     buildArgs: # build time arguments
+      SKIP_BUILD_STATIC_GENERATION: 0
       FEDERATION_ROUTER_ENDPOINT: https://liikunta-router.api.hel.fi/
       CMS_ORIGIN: https://liikunta2.content.api.hel.fi
       LINKEDEVENTS_EVENT_ENDPOINT: https://api.hel.fi/linkedevents/v1/event
@@ -45,6 +46,7 @@ extends:
       NEXT_PUBLIC_MATOMO_ENABLED: 1
       NEXT_PUBLIC_ASKEM_ENABLED: 1
     buildArgsStage:
+      SKIP_BUILD_STATIC_GENERATION: 0
       FEDERATION_ROUTER_ENDPOINT: https://events-graphql-federation-sports.stage.hel.ninja/
       CMS_ORIGIN: https://liikunta2.content.api.hel.fi
       LINKEDEVENTS_EVENT_ENDPOINT: https://api.hel.fi/linkedevents/v1/event
@@ -54,6 +56,7 @@ extends:
       NEXT_PUBLIC_MATOMO_ENABLED: 1
       NEXT_PUBLIC_ASKEM_ENABLED: 1
     buildArgsTest:
+      SKIP_BUILD_STATIC_GENERATION: 0
       FEDERATION_ROUTER_ENDPOINT: https://events-graphql-federation-sports.test.hel.ninja/
       CMS_ORIGIN: https://liikunta.app-staging.hkih.hion.dev
       LINKEDEVENTS_EVENT_ENDPOINT: https://api.hel.fi/linkedevents/v1/event

pipelines/tapahtumat-ui-release.yml

@@ -36,6 +36,7 @@ extends:
     # Does not contain all buildArguments, the rest located in tapahtumat-pipelines/tapahtumat-variables-staging.yml and tapahtumat-variables-common.yml
     # The values here will override the values defined in the tapahtumat-pipelines repository
     buildArgs:
+      SKIP_BUILD_STATIC_GENERATION: 0
       FEDERATION_ROUTER_ENDPOINT: https://tapahtumat-router.api.hel.fi/
       CMS_ORIGIN: https://tapahtumat.content.api.hel.fi
       LINKEDEVENTS_EVENT_ENDPOINT: https://api.hel.fi/linkedevents/v1/event
@@ -44,6 +45,7 @@ extends:
       NEXT_PUBLIC_DEBUG: 0
       NEXT_PUBLIC_MATOMO_ENABLED: 1
     buildArgsStage:
+      SKIP_BUILD_STATIC_GENERATION: 0
       FEDERATION_ROUTER_ENDPOINT: https://events-graphql-federation-events.stage.hel.ninja/
       CMS_ORIGIN: https://tapahtumat.content.api.hel.fi
       LINKEDEVENTS_EVENT_ENDPOINT: https://api.hel.fi/linkedevents/v1/event
@@ -52,6 +54,7 @@ extends:
       NEXT_PUBLIC_DEBUG: 0
       NEXT_PUBLIC_MATOMO_ENABLED: 1
     buildArgsTest:
+      SKIP_BUILD_STATIC_GENERATION: 0
       FEDERATION_ROUTER_ENDPOINT: https://events-graphql-federation-events.test.hel.ninja/
       CMS_ORIGIN: https://tapahtumat.app-staging.hkih.hion.dev
       LINKEDEVENTS_EVENT_ENDPOINT: https://api.hel.fi/linkedevents/v1/event