add keycloak deployment files

compose.yml

@@ -0,0 +1,38 @@
+version: '3.9'
+
+services:
+  keycloak_db:
+    image: postgres:${POSTGRES_VERSION}
+    restart: always
+    environment:
+      - POSTGRES_DB=keycloak
+      - POSTGRES_USER=${KC_DB_USERNAME}
+      - POSTGRES_PASSWORD=${KC_DB_PASSWORD}
+    volumes:
+      - ./data/postgres:/var/lib/postgresql/data
+
+  keycloak:
+    build:
+      dockerfile: Containerfile.keycloak
+      args:
+        KEYCLOAK_VERSION: ${KEYCLOAK_VERSION}
+    depends_on:
+      - keycloak_db
+    environment:
+      - KC_HEALTH_ENABLED=true
+      - KC_DB=postgres
+      - KC_DB_URL=jdbc:postgresql://keycloak_db:5432/keycloak
+      - KC_DB_URL_DATABASE=keycloak
+      - KC_PROXY_ADDRESS_FORWARDING=true
+      - KC_HOSTNAME_STRICT_HTTPS=false
+      - KC_PROXY=edge
+      - KC_HTTP_ENABLED=true
+      - KC_HOSTNAME_STRICT=false
+      - KC_HOSTNAME=${KC_HOSTNAME}
+      - KC_DB_USERNAME=${KC_DB_USERNAME}
+      - KC_DB_PASSWORD=${KC_DB_PASSWORD}
+      - KEYCLOAK_ADMIN=${KEYCLOAK_ADMIN}
+      - KEYCLOAK_ADMIN_PASSWORD=${KEYCLOAK_ADMIN_PASSWORD}
+    restart: always
+    ports:
+      - 8080:8080