[TW-84615] Include producing of TeamCity's DevKit into CI/CD (w/o Tea…

…mCity inside) (#119)

* Add Dockrfiles for DevKit images.

* Add Dockerfile for Agent and Server.

configs/devkit/linux/agent/Ubuntu.devkit.Dockerfile

@@ -0,0 +1,16 @@
+#
+# The DevKit container is the environment in which TeamCity is executed. It is as an environment for the testing ...
+# ... of potential tooling extension and security testing purposes.
+#
+
+# @param teamCityImage TeamCity Agent Docker Image
+ARG teamCityImage
+
+FROM ${teamCityImage}
+
+USER root
+
+RUN rm -rf /opt/buildagent
+USER buildagent
+
+CMD ["sleep", "infinity"]

configs/devkit/linux/server/ubuntu/Ubuntu.devkit.Dockerfile

@@ -0,0 +1,16 @@
+#
+# The DevKit container is the environment in which TeamCity is executed. It is as an environment for the testing ...
+# ... of potential tooling extension and security testing purposes.
+#
+
+# @param teamCityImage TeamCity Server Docker Image
+ARG teamCityImage
+
+FROM ${teamCityImage}
+
+USER root
+
+RUN rm -rf /opt/teamcity
+USER tcuser:tcuser
+
+CMD ["sleep", "infinity"]