Feat: Added keycloak-casa service

docker-compose.yml

+version: '3.7'
+services: 
+  keycloak-casa-db:
+    image: postgres
+    ports:
+      - 5432:5432
+    environment:
+      POSTGRES_USER: postgres
+      POSTGRES_PASSWORD: postgres
+      POSTGRES_DB: keycloak
+    volumes:
+      - db:/var/lib/postgresql/data
+
+  keycloak-casa:
+    image: keycloak-casa
+    build: ./keycloak-casa
+    depends_on:
+      - keycloak-casa-db
+    ports:
+      - 8080:8080 
+    environment:
+      KC_DB_URL: jdbc:postgresql://keycloak-casa-db:5432/keycloak
+      KC_DB_USERNAME: postgres
+      KC_DB_PASSWORD: postgres
+      KC_HOSTNAME: locahost
+      KC_DB: postgres
+      KEYCLOAK_ADMIN: admin
+      KEYCLOAK_ADMIN_PASSWORD: admin
+    command:
+      - "start-dev"
+
+
+volumes:
+  db:
+

keycloak-casa/Dockerfile

+FROM quay.io/keycloak/keycloak:18.0.2 as builder
+
+# Enable health and metrics support
+# ENV KC_HEALTH_ENABLED=true
+# ENV KC_METRICS_ENABLED=true
+
+# Configure a database vendor
+
+WORKDIR /opt/keycloak
+COPY dasniko.keycloak-user-provider.jar /opt/keycloak/providers
+# for demonstration purposes only, please make sure to use proper certificates in production instead
+# RUN keytool -genkeypair -storepass password -storetype PKCS12 -keyalg RSA -keysize 2048 -dname "CN=server" -alias server -ext "SAN:c=DNS:localhost,IP:127.0.0.1" -keystore conf/server.keystore
+RUN /opt/keycloak/bin/kc.sh build
+
+FROM quay.io/keycloak/keycloak:18.0.2
+COPY --from=builder /opt/keycloak/ /opt/keycloak/
+
+# change these values to point to a running postgres instance
+ENV KC_DB=postgres
+# ENV KC_DB_URL=<DBURL>
+# ENV KC_DB_USERNAME=postgres
+# ENV KC_DB_PASSWORD=postgres
+# ENV KC_HOSTNAME=localhost
+ENTRYPOINT ["/opt/keycloak/bin/kc.sh"]
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keycloak-casa/README.md

+- This jar is compiled from https://github.com/UPHRH-platform/casa-keycloak and placed here. 
+- Implements a custom user storage provider to be integrated with casa database.
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