[WIP] Pulsar client for ARC

dev-requirements.txt

@@ -21,7 +21,7 @@ flake8
 
 mypy<=1.0.1  # https://github.com/pydantic/pydantic/issues/5192
 types-paramiko
-types-pkg-resources
+types-setuptools
 types-PyYAML
 types-pycurl
 types-requests

docker/coexecutor/Dockerfile

@@ -1,41 +1,79 @@
-FROM conda/miniconda3
+# use the root of the repository as context, i.e. `docker build . -f ./docker/coexecutor/Dockerfile`
+
+FROM python:3.12-bookworm as build_wheel
+
+ENV PIP_ROOT_USER_ACTION=ignore
+
+WORKDIR /build
+
+# install requirements
+COPY requirements.txt .
+COPY dev-requirements.txt .
+RUN pip install --no-cache-dir --upgrade pip \
+    && pip install --no-cache-dir setuptools -r requirements.txt -r dev-requirements.txt
+
+# build Pulsar wheel
+COPY . .
+RUN python setup.py sdist bdist_wheel
+
+
+FROM python:3.12-bookworm
 
 ENV PYTHONUNBUFFERED 1
+ENV PIP_ROOT_USER_ACTION=ignore
 ENV DEBIAN_FRONTEND noninteractive
 ENV PULSAR_CONFIG_CONDA_PREFIX /usr/local
 
+# set up Galaxy Depot repository (provides SLURM DRMAA packages for Debian Buster and newer releases)
+RUN apt-get update \
+    && apt-get install -y --no-install-recommends ca-certificates curl gnupg \
+    && apt-get clean && rm -rf /var/lib/apt/lists/* \
+    && curl -fsSL "http://keyserver.ubuntu.com/pks/lookup?op=get&search=0x18381AC8832160AF" | gpg --dearmor -o /etc/apt/trusted.gpg.d/galaxy-depot.gpg \
+    && echo "deb https://depot.galaxyproject.org/apt/ $(bash -c '. /etc/os-release; echo ${VERSION_CODENAME:-bookworm}') main" | tee /etc/apt/sources.list.d/galaxy-depot.list
+
+# set up Debian Bullseye repository (and use it only for libslurm36, needed by slurm-drmaa1, and slurm)
+RUN echo "deb http://deb.debian.org/debian/ bullseye main" > /etc/apt/sources.list.d/bullseye.list && \
+cat <<EOF > /etc/apt/preferences.d/bullseye.pref
+Package: *
+Pin: release n=bullseye
+Pin-Priority: -1
+
+Package: libslurm36, slurm
+Pin: release n=bullseye
+Pin-Priority: 100
+EOF
+
+# set up CVMFS repository
+RUN apt-get update \
+    && apt-get install -y --no-install-recommends lsb-release wget \
+    && wget https://ecsft.cern.ch/dist/cvmfs/cvmfs-release/cvmfs-release-latest_all.deb \
+    && dpkg -i cvmfs-release-latest_all.deb && rm -f cvmfs-release-latest_all.deb
+
 # wget, gcc, pip - to build and install Pulsar.
 # bzip2 for Miniconda.
 # TODO: pycurl stuff...
-RUN apt-get update \
-    && apt-get install -y --no-install-recommends apt-transport-https \
+RUN apt-get update && apt-get install -y --no-install-recommends \
     # Install CVMFS client
-    && apt-get install -y --no-install-recommends lsb-release wget \
-    && wget https://ecsft.cern.ch/dist/cvmfs/cvmfs-release/cvmfs-release-latest_all.deb \
-    && dpkg -i cvmfs-release-latest_all.deb \
-    && rm -f cvmfs-release-latest_all.deb \
+    cvmfs cvmfs-config-default \
     # Install packages
-    && apt-get update \
-    && apt-get install -y --no-install-recommends gcc \
-        libcurl4-openssl-dev \
-        cvmfs cvmfs-config-default \
-        slurm-llnl slurm-drmaa-dev \
-        bzip2 \
+    gcc libcurl4-openssl-dev \
+    munge libmunge-dev slurm slurm-drmaa-dev \
+    bzip2 \
     # Install Pulsar Python requirements
     && pip install --no-cache-dir -U pip \
     && pip install --no-cache-dir drmaa wheel kombu pykube pycurl \
             webob psutil PasteDeploy pyyaml paramiko \
     # Remove build deps and cleanup
     && apt-get -y remove gcc wget lsb-release \
     && apt-get -y autoremove \
-    && apt-get autoclean \
-    && rm -rf /var/lib/apt/lists/* /var/log/dpkg.log \
-    && /usr/sbin/create-munge-key
+    && apt-get clean && rm -rf /var/lib/apt/lists/* /var/log/dpkg.log
+
+COPY --from=build_wheel /build/dist/pulsar_app-*-py2.py3-none-any.whl /
 
-ADD pulsar_app-*-py2.py3-none-any.whl /pulsar_app-*-py2.py3-none-any.whl
+SHELL ["/bin/bash", "-c"]
 
-RUN pip install --upgrade setuptools && pip install pyOpenSSL --upgrade && pip install cryptography --upgrade
-RUN pip install --no-cache-dir /pulsar_app-*-py2.py3-none-any.whl[galaxy_extended_metadata] && rm /pulsar_app-*-py2.py3-none-any.whl
+RUN pip install --no-cache-dir --upgrade setuptools pyOpenSSL cryptography
+RUN pip install --no-cache-dir "$(echo /pulsar_app-*-py2.py3-none-any.whl)"[galaxy_extended_metadata] && rm /pulsar_app-*-py2.py3-none-any.whl
 RUN pip install --upgrade 'importlib-metadata<5.0'
 RUN _pulsar-configure-galaxy-cvmfs
 RUN _pulsar-conda-init --conda_prefix=/pulsar_dependencies/conda

pulsar/client/action_mapper.py

@@ -21,6 +21,7 @@
     Any,
     Dict,
     List,
+    Optional,
     Type,
 )
 from urllib.parse import urlencode
@@ -190,6 +191,9 @@ def __init__(self, client=None, config=None):
         self.ssh_port = config.get("ssh_port", None)
         self.mappers = mappers_from_dicts(config.get("paths", []))
         self.files_endpoint = config.get("files_endpoint", None)
+        self.actions = []
+        # Might want to make the working directory available here so that we know where to place archive
+        # for archive action
 
     def action(self, source, type, mapper=None):
         path = source.get("path", None)
@@ -200,10 +204,14 @@ def action(self, source, type, mapper=None):
         if mapper:
             file_lister = mapper.file_lister
             action_kwds = mapper.action_kwds
-        action = action_class(source, file_lister=file_lister, **action_kwds)
+        action = action_class(source, file_lister=file_lister, file_type=type, **action_kwds)
         self.__process_action(action, type)
+        self.actions.append(action)
         return action
 
+    def finalize(self):
+        return [_ for _ in (action.finalize() for action in self.actions) if _]
+
     def unstructured_mappers(self):
         """ Return mappers that will map 'unstructured' files (i.e. go beyond
         mapping inputs, outputs, and config files).
@@ -265,6 +273,7 @@ def __process_action(self, action, file_type):
         """ Extension point to populate extra action information after an
         action has been created.
         """
+        action.file_type = file_type
         if getattr(action, "inject_url", False):
             self.__inject_url(action, file_type)
         if getattr(action, "inject_ssh_properties", False):
@@ -300,10 +309,12 @@ class BaseAction:
     whole_directory_transfer_supported = False
     action_spec: Dict[str, Any] = {}
     action_type: str
+    file_type: Optional[str] = None
 
-    def __init__(self, source, file_lister=None):
+    def __init__(self, source, file_lister=None, file_type=None):
         self.source = source
         self.file_lister = file_lister or DEFAULT_FILE_LISTER
+        self.file_type = file_type
 
     @property
     def path(self):
@@ -342,6 +353,9 @@ def _extend_base_dict(self, **kwds):
         base_dict.update(**kwds)
         return base_dict
 
+    def finalize(self):
+        pass
+
     def to_dict(self):
         return self._extend_base_dict()
 
@@ -390,8 +404,8 @@ class RewriteAction(BaseAction):
     action_type = "rewrite"
     staging = STAGING_ACTION_NONE
 
-    def __init__(self, source, file_lister=None, source_directory=None, destination_directory=None):
-        super().__init__(source, file_lister=file_lister)
+    def __init__(self, source, file_lister=None, source_directory=None, destination_directory=None, file_type=None):
+        super().__init__(source, file_lister=file_lister, file_type=file_type)
         self.source_directory = source_directory
         self.destination_directory = destination_directory
 
@@ -467,8 +481,8 @@ class RemoteTransferAction(BaseAction):
     action_type = "remote_transfer"
     staging = STAGING_ACTION_REMOTE
 
-    def __init__(self, source, file_lister=None, url=None):
-        super().__init__(source, file_lister=file_lister)
+    def __init__(self, source, file_lister=None, url=None, file_type=None):
+        super().__init__(source, file_lister=file_lister, file_type=file_type)
         self.url = url
 
     def to_dict(self):
@@ -495,8 +509,8 @@ class RemoteTransferTusAction(BaseAction):
     action_type = "remote_transfer_tus"
     staging = STAGING_ACTION_REMOTE
 
-    def __init__(self, source, file_lister=None, url=None):
-        super().__init__(source, file_lister=file_lister)
+    def __init__(self, source, file_lister=None, url=None, file_type=None):
+        super().__init__(source, file_lister=file_lister, file_type=file_type)
         self.url = url
 
     def to_dict(self):
@@ -513,6 +527,42 @@ def write_from_path(self, pulsar_path):
         tus_upload_file(self.url, pulsar_path)
 
 
+class JsonTransferAction(BaseAction):
+    """
+    This action indicates that the pulsar server should create a JSON manifest that can be used to stage files by an
+    external system that can stage files in and out of the compute environment.
+    """
+    inject_url = True
+    whole_directory_transfer_supported = True
+    action_type = "json_transfer"
+    staging = STAGING_ACTION_REMOTE
+
+    def __init__(self, source, file_lister=None, url=None, file_type=None):
+        super().__init__(source, file_lister, file_type)
+        self.url = url
+        self._from_path = None
+        self._to_path = None
+
+    @classmethod
+    def from_dict(cls, action_dict):
+        return JsonTransferAction(source=action_dict["source"], url=action_dict["url"])
+
+    def to_dict(self):
+        return self._extend_base_dict(url=self.url)
+
+    def write_to_path(self, path):
+        self._to_path = path
+
+    def write_from_path(self, pulsar_path: str):
+        self._from_path = pulsar_path
+
+    def finalize(self):
+        if self._to_path:
+            return {"url": self.url, "to_path": self._to_path}
+        else:
+            return {"url": self.url, "from_path": self._from_path}
+
+
 class RemoteObjectStoreCopyAction(BaseAction):
     """
     """
@@ -664,6 +714,7 @@ def write_to_path(self, path):
 
 
 DICTIFIABLE_ACTION_CLASSES = [
+    JsonTransferAction,
     RemoteCopyAction,
     RemoteTransferAction,
     RemoteTransferTusAction,
@@ -844,6 +895,7 @@ def unstructured_map(self, path):
 
 ACTION_CLASSES: List[Type[BaseAction]] = [
     NoneAction,
+    JsonTransferAction,
     RewriteAction,
     TransferAction,
     CopyAction,