Add OAuth2 mock server for CI testing

test/dropbox/docker-compose.yml

@@ -11,6 +11,17 @@ services:
     volumes:
       - ./user_v2.yaml:/etc/openapi/user_v2.yaml
 
+  oauth2_mock:
+    image: ghcr.io/navikt/mock-oauth2-server:1.0.0
+    ports:
+      - 8090:8090
+    environment:
+      PORT: 8090
+      JSON_CONFIG_PATH: '/etc/oauth2/config.yaml'
+    volumes:
+      - ./oauth2_config.yaml:/etc/oauth2/config.yaml
+    hostname: host.docker.internal
+
   backup:
     image: offen/docker-volume-backup:${TEST_VERSION:-canary}
     hostname: hostnametoken
@@ -25,6 +36,7 @@ services:
       BACKUP_PRUNING_LEEWAY: 5s
       BACKUP_PRUNING_PREFIX: test
       DROPBOX_ENDPOINT: http://openapi_mock:8080
+      DROPBOX_OAUTH2_ENDPOINT: http://oauth2_mock:8090
       DROPBOX_REFRESH_TOKEN: test
       DROPBOX_APP_KEY: test
       DROPBOX_APP_SECRET: test