Server Image hinzugefügt

Server-Image.md

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+# Server Image
+
+Directory:
+
+```text
+romexis/
+```
+
+The final Romexis Server image combines the prepared payload, runtime base image and runtime scripts.
+
+---
+
+## Build Inputs
+
+```text
+ROMEXIS_BASE_IMAGE
+ROMEXIS_PAYLOAD_IMAGE
+ROMEXIS_FIREBIRD_PAYLOAD_IMAGE
+ROMEXIS_VERSION
+TARGETARCH
+CHILKAT_VERSION
+```
+
+Example defaults:
+
+```dockerfile
+ARG TARGETARCH=amd64
+ARG ROMEXIS_VERSION=6.5.3.444.203
+
+ARG ROMEXIS_BASE_IMAGE=gitea.buchhorster.de/patrick/romexis-base-jre:11-${TARGETARCH}
+ARG ROMEXIS_PAYLOAD_IMAGE=gitea.buchhorster.de/patrick/romexis-payload:${ROMEXIS_VERSION}
+ARG ROMEXIS_FIREBIRD_PAYLOAD_IMAGE=gitea.buchhorster.de/patrick/romexis-firebird-payload:latest
+```
+
+---
+
+## Build Stages
+
+```text
+Stage 1: romexis-payload
+  Imports /opt/romexis and /opt/romexis-mssql-db.
+
+Stage 2: romexis-firebird-payload
+  Imports /opt/romexis-firebird-db.
+
+Stage 3: agent-build
+  Compiles RomexisPropertyAgent.java.
+
+Stage 4: final image
+  Assembles runtime image.
+```
+
+---
+
+## Runtime Scripts
+
+The final image includes:
+
+```text
+/entrypoint.sh
+/opt/init-romexis-db.sh
+/opt/init-romexis-mssql-db.sh
+/opt/init-romexis-firebird-db.sh
+/opt/init-romexis-db.sh
+/opt/fix-keystore-alias.sh
+```
+
+---
+
+## Java Property Agent
+
+The image includes:
+
+```text
+/opt/romexis/server/RomexisPropertyAgent.jar
+```
+
+This allows runtime property injection before Romexis starts.
+
+Example environment variable pattern:
+
+```text
+PROPERTY_AGENT_SET_KEY_<property-name>=<value>
+```
+
+---
+
+## Runtime Validation
+
+The Dockerfile should validate important payload outputs during build, especially:
+
+```text
+/opt/romexis/server/RomexisServer.jar
+/opt/romexis/version
+/opt/romexis-mssql-db
+/opt/romexis-firebird-db
+```
+
+Failing early is preferred over producing an incomplete runtime image.