Add container and GitHub build action

.github/workflows/build-docker.yml

@@ -0,0 +1,31 @@
+name: build-docker
+on:
+  push:
+    branches:
+      - 'main'
+      - 'develop'
+    tags:
+      - '*'
+jobs:
+  publish-docker:
+    runs-on: ubuntu-20.04
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+      - name: Login to Docker Registry
+        uses: docker/login-action@v2
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v2
+      - name: Build nad push
+        uses: docker/build-push-action@v3
+        with:
+          context: ./
+          file: ./Dockerfile
+          push: true
+          tags: ghcr.io/datagov-cz/isds-adapter:${{ github.ref_name }}
+          cache-from: type=gha
+          cache-to: type=gha,mode=max

Dockerfile

@@ -0,0 +1,8 @@
+FROM openjdk:21-slim-bookworm as build
+WORKDIR /opt/isds-adapter/
+COPY ./ ./
+
+RUN chmod u+x ./mvnw && ./mvnw package
+
+FROM openjdk:21-slim-bookworm
+COPY --from=build /opt/isds-adapter/dist /opt/isds-adapter/

README.md

@@ -5,22 +5,21 @@ Ignore any message older than one day.
 For documentation about ISIS see [Poradna ISDS](https://www.poradnaisds.cz/) or [Provozní řád ISDS](https://info.mojedatovaschranka.cz/info/cs/80.html).
 
 ## Requirements
- * Java 16
- * Maven
+ * Java 21
  * git client
 
 ## Install from source
 Clone this repository and use maven to build the program.
 ```
 git clone https://github.com/opendata-mvcr/nkod-isds.git
 cd nkod-isds
-mvn install
+mvnw package
 ```
 result of the build is saved into ```dist``` directory.
 Update configuration file ```dist/configuration.properties```.
 ```
 cd dist
-java -DconfigurationFile=./configuration.properties -jar isds-0.0.0.jar
+java -DconfigurationFile=./configuration.properties -jar isds-adapter.jar
 ```
 You may need to remove certificates in ```dist/certificates``` and download valid production/test certificate.
 
@@ -52,5 +51,12 @@ If either of the conditions does not hold, an _ignore_ entry is created, and the
 Otherwise, an _accept_ record for the message is created, the first `.txt` attachment 
 is downloaded, and the message is _markMessageAsDownloaded_ in the ISDS. 
 
+## Environment properties
+Configuration from the configuration file can be overwritten using environment variables. 
+Program support following environment properties:
+- ISDS_LOGIN - replace `login`.
+- ISDS_PASSWORD - replace `password`.
+- ISDS_URL - replace `url`.
+
 Tento repozitář je udržován v rámci projektu OPZ č. CZ.03.4.74/0.0/0.0/15_025/0013983.
 ![Evropská unie - Evropský sociální fond - Operační program Zaměstnanost](https://data.gov.cz/images/ozp_logo_cz.jpg)

pom.xml

@@ -92,9 +92,7 @@
                         <manifest>
                             <addClasspath>true</addClasspath>
                             <classpathPrefix>lib/</classpathPrefix>
-                            <mainClass>
-                                cz.gov.data.isds.AppEntry
-                            </mainClass>
+                            <mainClass>cz.gov.data.isds.AppEntry</mainClass>
                         </manifest>
                     </archive>
                     <outputDirectory>

src/main/java/cz/gov/data/isds/Configuration.java

@@ -43,16 +43,26 @@ private void loadFromFile(File file) throws IOException {
             properties.load(stream);
         }
         //
-        this.login = getProperty(properties, "login");
-        this.password = getProperty(properties, "password");
-        this.url = getProperty(properties, "url");
+        this.login = getEnvOrProperty(properties, "login", "ISDS_LOGIN");
+        this.password = getEnvOrProperty(properties, "password", "ISDS_PASSWORD");
+        this.url = getEnvOrProperty(properties, "url", "ISDS_URL");
+        //
         this.outputMessages = getProperty(properties, "output.messages");
         this.outputAttachments = getProperty(properties, "output.attachments");
         this.certificatesDirectory = getProperty(properties, "certificates");
         this.downloadInterval = Integer.parseInt(
                 getProperty(properties, "download_interval_in_minutes"));
     }
 
+    private String getEnvOrProperty(
+            Properties properties, String property, String environment) {
+        String environmentValue = System.getenv(environment);
+        if (environmentValue != null) {
+            return environmentValue;
+        }
+        return getProperty(properties, property);
+    }
+
     private String getProperty(Properties properties, String name) {
         final String value;
         try {