refactor: generate theme files during build time (#74)

infra/keycloak/Dockerfile

@@ -5,22 +5,34 @@ RUN dnf install --installroot /mnt/rootfs curl --releasever 9 --setopt install_w
     dnf --installroot /mnt/rootfs clean all && \
     rpm --root /mnt/rootfs -e --nodeps setup
 
+FROM node:18 AS theme-builder
+
+RUN apt-get update && \
+    apt-get install -y openjdk-17-jdk && \
+    apt-get install -y maven;
+
+COPY ./infra/keycloak/themes/theme-generator/package.json ./infra/keycloak/themes/theme-generator/yarn.lock /opt/app/
+WORKDIR /opt/app
+RUN yarn install --frozen-lockfile
+COPY ../infra/keycloak/themes/theme-generator/ /opt/app/
+RUN yarn build-keycloak-theme
+
 FROM quay.io/keycloak/keycloak:25.0.4 AS builder
 
 # Configure a database vendor
 ENV KC_DB=postgres
 
 WORKDIR /opt/keycloak
 
+COPY --from=theme-builder /opt/app/dist_keycloak/keycloak-theme-for-kc-22-and-above.jar /opt/keycloak/providers/
+
 RUN /opt/keycloak/bin/kc.sh build
 
 FROM quay.io/keycloak/keycloak:25.0.4
 
 COPY --from=ubi-micro-build /mnt/rootfs /
 COPY --from=builder /opt/keycloak/ /opt/keycloak/
 
-COPY ./infra/keycloak/themes/mally/keycloak-theme-for-kc-22-and-above.jar /opt/keycloak/providers/keycloak-theme.jar
-COPY ./infra/keycloak/themes/mally /opt/keycloak/themes/mally
 COPY ./infra/keycloak/realms/mally.json /opt/keycloak/data/import/mally.json
 
 ENTRYPOINT ["/opt/keycloak/bin/kc.sh"]