Generate all locale only in deloyment mode

.github/workflows/build-base.yaml

@@ -52,6 +52,11 @@ jobs:
           username: ${{ secrets.DOCKERHUB_USERNAME }}
           password: ${{ secrets.DOCKERHUB_PASSWORD }}
 
+      - name: Do we need to generate locale?
+        id: is_generate_locale
+        if: github.ref == env.latest-ref
+        run: echo "::set-output name=is_generate::"
+
       - name: Build base image
         id: docker_build_base
         uses: docker/build-push-action@v2
@@ -61,6 +66,7 @@ jobs:
           push: false
           tags: ${{ secrets.DOCKERHUB_REPO }}/postgis:base-${{ matrix.distro }}-${{ matrix.imageVersion }}-${{ matrix.imageVariant }}
           build-args: |
+            GENERATE_ALL_LOCALE=${{ steps.is_generate_locale.outputs.is_generate }}
             DISTRO=${{ matrix.distro }}
             IMAGE_VERSION=${{ matrix.imageVersion }}
             IMAGE_VARIANT=${{ matrix.imageVariant }}
@@ -189,6 +195,11 @@ jobs:
           username: ${{ secrets.DOCKERHUB_USERNAME }}
           password: ${{ secrets.DOCKERHUB_PASSWORD }}
 
+      - name: Do we need to generate locale?
+        id: is_generate_locale
+        if: github.ref == env.latest-ref
+        run: echo "::set-output name=is_generate::"
+
       - name: Build base image
         id: docker_build_base
         uses: docker/build-push-action@v2
@@ -198,6 +209,7 @@ jobs:
           push: ${{ github.ref == env.latest-ref }}
           tags: ${{ secrets.DOCKERHUB_REPO }}/postgis:base-${{ matrix.distro }}-${{ matrix.imageVersion }}-${{ matrix.imageVariant }}
           build-args: |
+            GENERATE_ALL_LOCALE=${{ steps.is_generate_locale.outputs.is_generate }}
             DISTRO=${{ matrix.distro }}
             IMAGE_VERSION=${{ matrix.imageVersion }}
             IMAGE_VARIANT=${{ matrix.imageVariant }}

base_build/Dockerfile

@@ -31,8 +31,13 @@ RUN chmod 0755 /gdal_install.sh;/bin/bash /gdal_install.sh
 # Generating locales takes a long time. Utilize caching by runnig it by itself
 # early in the build process.
 
+# Generate all locale only on deployment mode build
+# Set to empty string to generate only default locale
+ARG GENERATE_ALL_LOCALE=1
+
 COPY scripts/locale.gen /etc/locale.gen
 RUN set -eux \
+    && [[ (! -z "${GENERATE_ALL_LOCALE}") && (! $GENERATE_ALL_LOCALE -eq 0) ]] \
     && /usr/sbin/locale-gen
 
 ENV LANG=en_US.UTF-8 \