test: Minor fixes to expose the certs in a subdirectory too

We were mapping the ports and the source into the docker image, but we
were not mapping the certs out into the host. Without this the host
could not connect as it had no valid certificates to check against.

Makefile

@@ -197,7 +197,7 @@ gltestserver-image: docker/gl-testserver/Dockerfile
 	  --build-arg DOCKER_USER=$(shell whoami) \
 	  --build-arg UID=$(shell id -u) \
 	  --build-arg GID=$(shell id -g) \
-	  --build-arg REPO_PATH=$(shell git rev-parse --show-superproject-working-tree) \
+	  --build-arg REPO_PATH=$(shell git rev-parse --show-toplevel) \
 	  -t gltestserver \
 	  -f docker/gl-testserver/Dockerfile \
 	  .

docker/gl-testserver/Dockerfile

@@ -1,20 +1,22 @@
 FROM ubuntu:22.04 AS python-builder
 
-ENV RUST_VERSION=1.74
-ENV PATH=$CARGO_HOME/bin:$PATH
-ENV PROTOC_VERSION=3.19.3
-ENV CFSSL_VERSION=1.6.5
-ENV GL_TESTING_IGNORE_HASH=true
 ARG BITCOIN_VERSION=24.0
 ARG GID=0
 ARG UID=0
 ARG DOCKER_USER=dev
 ARG REPO_PATH=/repo
+
+ENV RUST_VERSION=1.74
+ENV PATH=$CARGO_HOME/bin:$PATH
+ENV PROTOC_VERSION=3.19.3
+ENV CFSSL_VERSION=1.6.5
+ENV GL_TESTING_IGNORE_HASH=true
 ENV PATH=$PATH:/home/$DOCKER_USER/.local/bin/:/opt/bitcoin/bin:/home/$DOCKER_USER/.cargo/bin
-#ENV VIRTUAL_ENV=/tmp/venv
-ENV CARGO_TARGET_DIR=/tmp/cargo
 ENV REPO=$REPO_PATH
 
+# Force this target dir, so the scripts can find all the binaries.
+ENV CARGO_TARGET_DIR=$REPO/target
+
 RUN apt update && apt install -qqy \
     curl \
     python3 \
@@ -57,6 +59,7 @@ RUN mkdir -p ${REPO_PATH} && \
 
 ADD ../../ ${REPO_PATH}/
 RUN chown $DOCKER_USER:users -R ${REPO_PATH}
+RUN chown $DOCKER_USER:users -R /home/$DOCKER_USER
 USER $DOCKER_USER
 
 RUN curl \
@@ -72,4 +75,4 @@ WORKDIR ${REPO_PATH}/libs/gl-testserver/
 
 RUN uv sync --locked -v
 RUN uv run clnvm get-all
-CMD uv run gltestserver run --metadata ${REPO}/
+CMD uv run gltestserver run --metadata ${REPO}/ --directory ${REPO}/.gltestserver