ci: Generate Kibana encryption keys

Author: antoineco

.github/workflows/ci.yml

@@ -57,6 +57,14 @@ jobs:
           -e 's/\(BEATS_SYSTEM_PASSWORD=\)'\'\''/\1testpasswd/g'
           .env
 
+      - name: Generate Kibana encryption keys
+        run: |
+          source .env
+          : ${ELASTIC_VERSION:?unset}
+          docker container run --rm docker.elastic.co/kibana/kibana:"${ELASTIC_VERSION}" \
+            bin/kibana-encryption-keys generate -q >>kibana/config/kibana.yml
+          sed -i '/Kibana is currently running with legacy OpenSSL providers enabled/d' kibana/config/kibana.yml
+
       - name:  Set up users and roles
         run: docker compose up setup