Add support for mounting application under a context root

Signed-off-by: Kristian Berg <[email protected]>

Author: kriberg

Dockerfile

@@ -22,6 +22,7 @@ LABEL maintainer="Kristian Berg <[email protected]>" \
 
 ENV UVICORN_PORT 8000
 ENV UVICORN_HOST 0.0.0.0
+ENV CONTEXT_ROOT ""
 USER root
 RUN apt-get update && \
     apt-get install -y gcc && \
@@ -37,6 +38,6 @@ USER 1001:100
 WORKDIR /app
 EXPOSE $UVICORN_PORT
 HEALTHCHECK --interval=30s --timeout=5s --retries=3 \
-    CMD curl -I --silent --fail "http://localhost:$UVICORN_PORT/" || exit 1
+    CMD curl -I --silent --fail "http://localhost:$UVICORN_PORT/$CONTEXT_ROOT" || exit 1
 ENTRYPOINT ["/bin/start_uvicorn"]
 CMD ["asgi:app"]

README.md

@@ -14,8 +14,9 @@ environment flags to control how the ASGI application is started.
 
 Flag             | Default           | Comment 
 ---------------- | ----------------- | ---------------------------------------------------
-UVICORN_PORT	 | 8000              | Application port.
+UVICORN_PORT     | 8000              | Application port.
 UVICORN_HOST     | 0.0.0.0           | Application bind address.
+CONTEXT_ROOT     | None              | Context root where application is served.
 
 ### Creating a Dockerfile
 

start_uvicorn

@@ -1,2 +1,7 @@
 #!/bin/bash
-uvicorn --port $UVICORN_PORT --host $UVICORN_HOST --log-level ${LOG_LEVEL:-info} $*
+if [ $CONTEXT_ROOT ]; then
+    ROOT="--root-path $CONTEXT_ROOT"
+else
+    ROOT=""
+fi
+uvicorn --port $UVICORN_PORT --host $UVICORN_HOST --log-level ${LOG_LEVEL:-info} $ROOT_PATH $*