[mod] container: rework builds (#6720)

Free from ghcr.io/searxng/cache! Now we save and load images without polluting
this shared (and useless) layer cache, which also makes it easy to download
artifacts for local debugging.

I also removed this nonsense about virtualenv normalization, this will be
properly fixed by using lockfiles on py dependencies.

container/builder.dockerfile

@@ -3,21 +3,15 @@ FROM docker.io/searxng/base:searxng-builder AS builder
 COPY ./requirements.txt ./requirements-server.txt ./
 
 ENV UV_NO_MANAGED_PYTHON="true"
-ENV UV_NATIVE_TLS="true"
-
-ARG TIMESTAMP_VENV="0"
 
 RUN --mount=type=cache,id=uv,target=/root/.cache/uv set -eux -o pipefail; \
-    export SOURCE_DATE_EPOCH="$TIMESTAMP_VENV"; \
     uv venv; \
     uv pip install --requirements ./requirements.txt --requirements ./requirements-server.txt; \
     uv cache prune --ci; \
     find ./.venv/lib/ -type f -exec strip --strip-unneeded {} + || true; \
     find ./.venv/lib/ -type d -name "__pycache__" -exec rm -rf {} +; \
     find ./.venv/lib/ -type f -name "*.pyc" -delete; \
-    python -m compileall -q -f -j 0 --invalidation-mode=unchecked-hash ./.venv/lib/; \
-    find ./.venv/lib/python*/site-packages/*.dist-info/ -type f -name "RECORD" -exec sort -t, -k1,1 -o {} {} \;; \
-    find ./.venv/ -exec touch -h --date="@$TIMESTAMP_VENV" {} +
+    python -m compileall -q -f -j 0 --invalidation-mode=unchecked-hash ./.venv/lib/
 
 COPY --exclude=./searx/version_frozen.py ./searx/ ./searx/
 

container/dist.dockerfile

@@ -1,7 +1,4 @@
-ARG CONTAINER_IMAGE_ORGANIZATION="searxng"
-ARG CONTAINER_IMAGE_NAME="searxng"
-
-FROM localhost/$CONTAINER_IMAGE_ORGANIZATION/$CONTAINER_IMAGE_NAME:builder AS builder
+FROM localhost/searxng/searxng:builder AS builder
 FROM docker.io/searxng/base:searxng AS dist
 
 COPY --chown=977:977 --from=builder /usr/local/searxng/.venv/ ./.venv/