Add CodeMeta file

codemeta.json

+{
+    "@context": "https://doi.org/10.5063/schema/codemeta-2.0",
+    "@type": "SoftwareSourceCode",
+    "license": "https://spdx.org/licenses/Apache-2.0",
+    "codeRepository": "https://github.com/cau-se/theodolite",
+    "dateCreated": "2020-03-13",
+    "datePublished": "2020-07-27",
+    "dateModified": "2021-02-11",
+    "downloadUrl": "https://github.com/cau-se/theodolite/releases",
+    "name": "Theodolite",
+    "version": "0.3.0",
+    "description": "Theodolite is a framework for benchmarking the horizontal and vertical scalability of stream processing engines.",
+    "developmentStatus": "active",
+    "referencePublication": "https://doi.org/10.1016/j.bdr.2021.100209",
+    "programmingLanguage": [
+        "Python",
+        "Java"
+    ],
+    "runtimePlatform": [
+        "Kubernetes"
+    ],
+    "author": [
+        {
+            "@type": "Person",
+            "givenName": "Sören",
+            "familyName": "Henning",
+            "email": "soeren.henning@email.uni-kiel.de",
+            "affiliation": {
+                "@type": "Organization",
+                "name": "Department of Computer Science, Kiel University"
+            }
+        }
+    ]
+}

docs/release-process.md

@@ -11,14 +11,18 @@ This document describes how to perform a new Theodolite release.
 We assume that we are creating the release `v0.3.1`. Please make sure to adjust
 the following steps according to the release, you are actually performing.
 
-1. Create a new branch `v0.3` if it does not already exists. This branch will never
+1. Update `codemeta.json` to match the new version. In particular, make sure that `version` points to the version you are releasing and `dateModified` points to the date you are relasing this version. [CodeMeata generator](https://codemeta.github.io/codemeta-generator/) may help you in updating the file.
+
+2. Create a new branch `v0.3` if it does not already exists. This branch will never
 again be merged into master.
 
-2. Checkout the `v0.3` branch.
+3. Checkout the `v0.3` branch.
 
-3. Update all references to Theodolite Docker images to tag `v0.3.1`. These are the Kubernetes resource definitions in
+4. Update all references to Theodolite Docker images to tag `v0.3.1`. These are the Kubernetes resource definitions in
 `execution`, the references to *latest* in `run_uc.py`, the Docker Compose files in `docker-test` and the example `theodolite.yaml` job.
 
-4. Commit these changes.
+5. Commit these changes.
+
+6. Tag this commit with `v0.3.1`. The corresponding Docker images will be uploaded.
 
-5. Tag this commit with `v0.3.1`. The corresponding Docker images will be uploaded.
+7. Create *releases* for this tag in both, GitLab and GitHub.