add redis and cleanup

- add doc/global_settings.md
- docker_database.md
- update dependency.md
- extrack hlaeja from  development-compose.yml to hlaeja-compose.yml
- rename compose.yml to development-compose.yml
- extract text from readme.md
  - databases to doc/docker_database.md
  - hlaeja service to doc/docker_hlaeja.md
- move and rename structure.md to doc/dependency.md
- move and rename identity.md to doc/rsa_key.mk
- move and rename certificate.md to doc/keystore.md

doc/docker_database.md

@@ -0,0 +1,48 @@
+# Hlæja databases
+
+## InfluxDB
+
+InfluxDB is a high-performance time series database designed to handle large volumes of time-stamped data. It is commonly used for monitoring, analytics, and IoT applications, where data points are associated with timestamps (e.g., sensor readings, system metrics).
+
+### Environment
+
+```text
+DOCKER_INFLUXDB_INIT_MODE: setup
+DOCKER_INFLUXDB_INIT_USERNAME: influx
+DOCKER_INFLUXDB_INIT_PASSWORD: password
+DOCKER_INFLUXDB_INIT_ADMIN_TOKEN: influxdbToken==
+DOCKER_INFLUXDB_INIT_ORG: hlaeja_ltd
+DOCKER_INFLUXDB_INIT_BUCKET: device-data
+```
+
+## PostgreSQL
+
+PostgreSQL is a powerful, open-source relational database management system (RDBMS). Known for its reliability and advanced features, it supports SQL for querying and managing data, along with extensive functionality for scalability and extensibility.
+
+### Environment
+
+```text
+POSTGRES_USER: postgres
+POSTGRES_PASSWORD : password
+```
+
+## Apache Cassandra
+
+Apache Cassandra is a distributed NoSQL database designed for handling large amounts of data across many commodity servers with no single point of failure. It is optimized for high availability, scalability, and fault tolerance.
+
+### Environment
+
+```text
+CASSANDRA_USER: cassandra
+CASSANDRA_PASSWORD: password
+```
+
+## Redis
+
+Redis is an in-memory data store that can be used as a database, message broker, or cache layer. It is designed for high performance and low latency, making it suitable for real-time web applications.
+
+### Environment
+
+```text
+REDIS_PASSWORD: password
+```