DM-45906: Create app that can use Butler to implement IVOA SIAv2 protocol

.pre-commit-config.yaml

@@ -1,13 +1,13 @@
 repos:
   - repo: https://github.com/pre-commit/pre-commit-hooks
-    rev: v4.6.0
+    rev: v5.0.0
     hooks:
       - id: check-toml
       - id: check-yaml
       - id: trailing-whitespace
 
   - repo: https://github.com/astral-sh/ruff-pre-commit
-    rev: v0.5.5
+    rev: v0.6.9
     hooks:
       - id: ruff
         args: [--fix, --exit-non-zero-on-fix]

Dockerfile

@@ -1,26 +1,27 @@
-# This Dockerfile has four stages:
+# This Dockerfile has three stages:
 #
 # base-image
 #   Updates the base Python image with security patches and common system
 #   packages. This image becomes the base of all other images.
-# dependencies-image
-#   Installs third-party dependencies (requirements/main.txt) into a virtual
-#   environment. This virtual environment is ideal for copying across build
-#   stages.
 # install-image
-#   Installs the app into the virtual environment.
+#   Installs third-party dependencies (requirements/main.txt) and the
+#   application into a virtual environment. This virtual environment is
+#   ideal for copying across build stages.
 # runtime-image
 #   - Copies the virtual environment into place.
 #   - Runs a non-root user.
 #   - Sets up the entrypoint and port.
 
-FROM python:3.12.7-slim-bookworm as base-image
+FROM python:3.12.7-slim-bookworm AS base-image
 
 # Update system packages
 COPY scripts/install-base-packages.sh .
 RUN ./install-base-packages.sh && rm ./install-base-packages.sh
 
-FROM base-image AS dependencies-image
+FROM base-image AS install-image
+
+# Install uv.
+COPY --from=ghcr.io/astral-sh/uv:0.4.9 /uv /bin/uv
 
 # Install system packages only needed for building dependencies.
 COPY scripts/install-dependency-packages.sh .
@@ -29,23 +30,19 @@ RUN ./install-dependency-packages.sh
 # Create a Python virtual environment
 ENV VIRTUAL_ENV=/opt/venv
 RUN python -m venv $VIRTUAL_ENV
+
 # Make sure we use the virtualenv
 ENV PATH="$VIRTUAL_ENV/bin:$PATH"
-# Put the latest pip and setuptools in the virtualenv
-RUN pip install --upgrade --no-cache-dir pip setuptools wheel
 
 # Install the app's Python runtime dependencies
 COPY requirements/main.txt ./requirements.txt
-RUN pip install --quiet --no-cache-dir -r requirements.txt
-
-FROM dependencies-image AS install-image
-
-# Use the virtualenv
-ENV PATH="/opt/venv/bin:$PATH"
+RUN uv pip install  --compile-bytecode --verify-hashes --no-cache \
+    -r requirements.txt
 
+# Install the application.
 COPY . /workdir
 WORKDIR /workdir
-RUN pip install --no-cache-dir .
+RUN uv pip install --compile-bytecode --no-cache .
 
 FROM base-image AS runtime-image
 
@@ -55,6 +52,8 @@ RUN useradd --create-home appuser
 # Copy the virtualenv
 COPY --from=install-image /opt/venv /opt/venv
 
+WORKDIR /app
+
 # Make sure we use the virtualenv
 ENV PATH="/opt/venv/bin:$PATH"
 
@@ -65,4 +64,4 @@ USER appuser
 EXPOSE 8080
 
 # Run the application.
-CMD ["uvicorn", "vosiav2.main:app", "--host", "0.0.0.0", "--port", "8080"]
+CMD ["uvicorn", "sia.main:app", "--host", "0.0.0.0", "--port", "8080"]

Makefile

@@ -1,6 +1,6 @@
 .PHONY: help
 help:
-	@echo "Make targets for vo-siav2"
+	@echo "Make targets for example"
 	@echo "make init - Set up dev environment"
 	@echo "make run - Start a local development instance"
 	@echo "make update - Update pinned dependencies and run make init"
@@ -29,20 +29,9 @@ update-deps:
 	pip install --upgrade uv
 	uv pip install --upgrade pre-commit
 	pre-commit autoupdate
-	uv pip compile --upgrade --generate-hashes			\
+	uv pip compile --upgrade --universal --generate-hashes		\
 	    --output-file requirements/main.txt requirements/main.in
-	uv pip compile --upgrade --generate-hashes			\
+	uv pip compile --upgrade --universal --generate-hashes		\
 	    --output-file requirements/dev.txt requirements/dev.in
-	uv pip compile --upgrade --generate-hashes			\
-	    --output-file requirements/tox.txt requirements/tox.in
-
-# Useful for testing against a Git version of Safir.
-.PHONY: update-deps-no-hashes
-update-deps-no-hashes:
-	pip install --upgrade uv
-	uv pip compile --upgrade					\
-	    --output-file requirements/main.txt requirements/main.in
-	uv pip compile --upgrade					\
-	    --output-file requirements/dev.txt requirements/dev.in
-	uv pip compile --upgrade					\
-	    --output-file requirements/tox.txt requirements/tox.in
+	uv pip compile --upgrade --universal --generate-hashes		\
+	    --output-file requirements/tox.txt requirements/tox.in

README.md

@@ -1,6 +1,17 @@
-# vo-siav2
+# SIA
 
-Rubin Observatory SIAV2 implementation over Butler
-Learn more at https://vo-siav2.lsst.io
+SIA is an implementation of the IVOA [Simple Image Access v2](https://www.ivoa.net/documents/SIA/20150610/PR-SIA-2.0-20150610.pdf) protocol as a [FastAPI](https://fastapi.tiangolo.com/) web service, designed to be deployed as part of the Rubin Science Platform.
+
+The default configuration uses the [dax_obscore](https://github.com/lsst-dm/dax_obscore) package and interacts with a [Butler](https://github.com/lsst/daf_butler) repository to find images matching specific criteria.
+
+
+While the current release supports both remote and direct (local) Butler repositories, our primary focus has been on the Remote Butler, resulting in more mature support for this option.
+
+Query results are streamed to the user as VOTable responses, which is currently the only supported format.
+
+The application expects as part of the configuration a list of Butler Data Collections, each of which expects a number of attributes which define how to access the repository.
+
+The system architecture & design considerations have been documented in https://github.com/lsst-sqre/sqr-095.
+
+See  [CHANGELOG.md](https://github.com/lsst-sqre/sia/blob/main/CHANGELOG.md) for the change history of sia.
 
-vo-siav2 is developed with [FastAPI](https://fastapi.tiangolo.com) and [Safir](https://safir.lsst.io).

pyproject.toml

@@ -1,7 +1,7 @@
 [project]
 # https://packaging.python.org/en/latest/specifications/declaring-project-metadata/
-name = "vo-siav2"
-description = "Rubin Observatory SIAV2 implementation over Butler"
+name = "sia"
+description = "Rubin Observatory SIA implementation over Butler"
 license = { file = "LICENSE" }
 readme = "README.md"
 keywords = ["rubin", "lsst"]
@@ -23,22 +23,25 @@ dependencies = []
 dynamic = ["version"]
 
 [project.scripts]
-vo-siav2 = "vosiav2.cli:main"
+sia = "sia.cli:main"
 
 [project.urls]
-Homepage = "https://vo-siav2.lsst.io"
-Source = "https://github.com/lsst-sqre/vo-siav2"
+Homepage = "https://sia.lsst.io"
+Source = "https://github.com/lsst-sqre/sia"
 
 [build-system]
 requires = ["setuptools>=61", "wheel", "setuptools_scm[toml]>=6.2"]
 build-backend = "setuptools.build_meta"
 
 [tool.setuptools_scm]
 
+[tool.setuptools.package-data]
+"sia" = ["templates/*.xml"]
+
 [tool.coverage.run]
 parallel = true
 branch = true
-source = ["vosiav2"]
+source = ["sia"]
 
 [tool.coverage.paths]
 source = ["src", ".tox/*/site-packages"]
@@ -62,7 +65,7 @@ disallow_untyped_defs = true
 disallow_incomplete_defs = true
 ignore_missing_imports = true
 local_partial_types = true
-plugins = ["pydantic.mypy"]
+plugins = ["pydantic.mypy","pydantic_xml.mypy"]
 no_implicit_reexport = true
 show_error_codes = true
 strict_equality = true
@@ -87,6 +90,7 @@ asyncio_mode = "strict"
 # with complex data structures rather than only the assert message) in files
 # listed in python_files.
 python_files = ["tests/*.py", "tests/*/*.py"]
+asyncio_default_fixture_loop_scope = "function"
 
 # Use the generic Ruff configuration in ruff.toml and extend it with only
 # project-specific settings. Add a [tool.ruff.lint.extend-per-file-ignores]
@@ -95,7 +99,7 @@ python_files = ["tests/*.py", "tests/*/*.py"]
 extend = "ruff-shared.toml"
 
 [tool.ruff.lint.isort]
-known-first-party = ["vosiav2", "tests"]
+known-first-party = ["sia", "tests"]
 split-on-trailing-comma = false
 
 [tool.scriv]