Implemented Danswer versioning system. (#649)

* Web & API server versioning system. Displayed on UI.

* Remove some debugging code.

* Integrated backend version into GitHub Action & Docker build workflow using env variables.

* Fixed web container environment variable name.

* Revise Dockerfiles for GitHub Actions workflow.

* Added system information page to admin panel with version info. Updated github workflows to include tagged version, and corresponding changes in the dockerfiles and codebases for web&backend to use env variables if present. Changed to 'dev' naming scheme if no env var is present to indicate local setup. Removed version from admin panel header.

* Added missing systeminfo dir to remote repo.

backend/Dockerfile

@@ -1,5 +1,12 @@
 FROM python:3.11.4-slim-bookworm
 
+# Default DANSWER_VERSION build argument set here. 
+# This can be overridden by passing in a build arg, typically from GitHub Actions.
+ARG DANSWER_VERSION=0.1.0
+# Then passed to the container environment.
+ENV DANSWER_VERSION=${DANSWER_VERSION}
+
+
 # Install system dependencies
 RUN apt-get update && \
     apt-get install -y git cmake pkg-config libprotobuf-c-dev protobuf-compiler \

backend/danswer/__init__.py

@@ -0,0 +1,4 @@
+import os
+
+# Pulls the version from the environment variable DANSWER_VERSION, or defaults to 0.1.0dev.
+__version__ = os.environ.get("DANSWER_VERSION", "") or "0.1.0dev"

backend/danswer/server/models.py

@@ -46,6 +46,10 @@ class AuthTypeResponse(BaseModel):
     auth_type: AuthType
 
 
+class VersionResponse(BaseModel):
+    backend_version: str
+
+
 class DataRequest(BaseModel):
     data: str
 

backend/danswer/server/state.py

@@ -1,9 +1,10 @@
 from fastapi import APIRouter
 
+from danswer import __version__
 from danswer.configs.app_configs import AUTH_TYPE
 from danswer.server.models import AuthTypeResponse
 from danswer.server.models import StatusResponse
-
+from danswer.server.models import VersionResponse
 
 router = APIRouter()
 
@@ -16,3 +17,8 @@ def healthcheck() -> StatusResponse:
 @router.get("/auth/type")
 def get_auth_type() -> AuthTypeResponse:
     return AuthTypeResponse(auth_type=AUTH_TYPE)
+
+
+@router.get("/version")
+def get_version() -> VersionResponse:
+    return VersionResponse(backend_version=__version__)