Add table dump to a csv feature

Dockerfile

@@ -7,10 +7,16 @@ RUN mkdir -p /home/nginx/.cloudvolume/secrets \
 COPY requirements.txt /app/.
 RUN python -m pip install --upgrade pip
 RUN pip install -r requirements.txt
+# Install gcloud SDK as root and set permissions
+# Install gcloud SDK as root
 COPY . /app
 COPY override/timeout.conf /etc/nginx/conf.d/timeout.conf
 COPY gracefully_shutdown_celery.sh /home/nginx
 RUN chmod +x /home/nginx/gracefully_shutdown_celery.sh
 RUN mkdir -p /home/nginx/tmp/shutdown 
 RUN chmod +x /entrypoint.sh
-WORKDIR /app
+WORKDIR /app
+USER nginx
+RUN curl -sSL https://sdk.cloud.google.com | bash
+ENV PATH /home/nginx/google-cloud-sdk/bin:/root/google-cloud-sdk/bin:$PATH
+USER root

materializationengine/blueprints/client/api2.py

@@ -32,6 +32,7 @@
 from materializationengine.blueprints.client.utils import (
     create_query_response,
     collect_crud_columns,
+    get_latest_version,
 )
 from materializationengine.blueprints.client.schemas import (
     ComplexQuerySchema,
@@ -573,7 +574,9 @@ def get(self, datastack_name: str):
         return versions, 200
 
 
-@client_bp.route("/datastack/<string:datastack_name>/version/<int:version>")
+@client_bp.route(
+    "/datastack/<string:datastack_name>/version/<int(signed=True):version>"
+)
 class DatastackVersion(Resource):
     method_decorators = [
         limit_by_category("fast_query"),
@@ -610,7 +613,7 @@ def get(self, datastack_name: str, version: int):
 
 
 @client_bp.route(
-    "/datastack/<string:datastack_name>/version/<int:version>/table/<string:table_name>/count"
+    "/datastack/<string:datastack_name>/version/<int(signed=True):version>/table/<string:table_name>/count"
 )
 class FrozenTableCount(Resource):
     method_decorators = [
@@ -707,7 +710,9 @@ def get(self, datastack_name: str):
         return schema.dump(response, many=True), 200
 
 
-@client_bp.route("/datastack/<string:datastack_name>/version/<int:version>/tables")
+@client_bp.route(
+    "/datastack/<string:datastack_name>/version/<int(signed=True):version>/tables"
+)
 class FrozenTableVersions(Resource):
     method_decorators = [
         limit_by_category("fast_query"),
@@ -752,7 +757,7 @@ def get(self, datastack_name: str, version: int):
 
 
 @client_bp.route(
-    "/datastack/<string:datastack_name>/version/<int:version>/tables/metadata"
+    "/datastack/<string:datastack_name>/version/<int(signed=True):version>/tables/metadata"
 )
 class FrozenTablesMetadata(Resource):
     method_decorators = [
@@ -811,7 +816,7 @@ def get(
 
 
 @client_bp.route(
-    "/datastack/<string:datastack_name>/version/<int:version>/table/<string:table_name>/metadata"
+    "/datastack/<string:datastack_name>/version/<int(signed=True):version>/table/<string:table_name>/metadata"
 )
 class FrozenTableMetadata(Resource):
     method_decorators = [
@@ -868,7 +873,7 @@ def get(
 
 @client_bp.expect(query_parser)
 @client_bp.route(
-    "/datastack/<string:datastack_name>/version/<int:version>/table/<string:table_name>/query"
+    "/datastack/<string:datastack_name>/version/<int(signed=True):version>/table/<string:table_name>/query"
 )
 class FrozenTableQuery(Resource):
     method_decorators = [
@@ -1144,7 +1149,7 @@ def preprocess_view_dataframe(df, view_name, db_name, column_names):
 
 @client_bp.expect(query_seg_prop_parser)
 @client_bp.route(
-    "/datastack/<string:datastack_name>/version/<int:version>/table/<string:table_name>/info"
+    "/datastack/<string:datastack_name>/version/<int(signed=True):version>/table/<string:table_name>/info"
 )
 class MatTableSegmentInfo(Resource):
     method_decorators = [
@@ -1330,7 +1335,9 @@ def get(
 
 
 @client_bp.expect(query_parser)
-@client_bp.route("/datastack/<string:datastack_name>/version/<int:version>/query")
+@client_bp.route(
+    "/datastack/<string:datastack_name>/version/<int(signed=True):version>/query"
+)
 class FrozenQuery(Resource):
     method_decorators = [
         validate_datastack,
@@ -1623,7 +1630,9 @@ def post(self, datastack_name: str):
 
 
 @client_bp.expect(query_parser)
-@client_bp.route("/datastack/<string:datastack_name>/version/<int:version>/views")
+@client_bp.route(
+    "/datastack/<string:datastack_name>/version/<int(signed=True):version>/views"
+)
 class AvailableViews(Resource):
     method_decorators = [
         validate_datastack,
@@ -1668,7 +1677,7 @@ def get(
 
 @client_bp.expect(query_parser)
 @client_bp.route(
-    "/datastack/<string:datastack_name>/version/<version>/views/<string:view_name>/metadata"
+    "/datastack/<string:datastack_name>/version/<int(signed+True):version>/views/<string:view_name>/metadata"
 )
 class ViewMetadata(Resource):
     method_decorators = [
@@ -1868,24 +1877,12 @@ def get(
             datastack_name
         )
 
+        if version == -1:
+            version = get_latest_version(datastack_name)
+            print(f"using version {version}")
+        mat_db_name = f"{datastack_name}__mat{version}"
         if version == 0:
             mat_db_name = f"{aligned_volume_name}"
-        elif version == -1:
-            mat_db_name = f"{aligned_volume_name}"
-            session = sqlalchemy_cache.get(mat_db_name)
-            # query the database for the latest valid version
-            response = (
-                session.query(AnalysisVersion)
-                .filter(AnalysisVersion.datastack == datastack_name)
-                .filter(AnalysisVersion.valid)
-                .order_by(AnalysisVersion.time_stamp.desc())
-                .first()
-            )
-            version = response.version
-            print(f"using version {version}")
-            mat_db_name = f"{datastack_name}__mat{version}"
-        else:
-            mat_db_name = f"{datastack_name}__mat{version}"
 
         df, column_names, warnings = assemble_view_dataframe(
             datastack_name, version, view_name, {}, {}
@@ -1920,7 +1917,7 @@ def get(
 
 @client_bp.expect(query_parser)
 @client_bp.route(
-    "/datastack/<string:datastack_name>/version/<int:version>/views/<string:view_name>/query"
+    "/datastack/<string:datastack_name>/version/<int(signed=True):version>/views/<string:view_name>/query"
 )
 class ViewQuery(Resource):
     method_decorators = [
@@ -2040,7 +2037,7 @@ def get_table_schema(table):
 
 
 @client_bp.route(
-    "/datastack/<string:datastack_name>/version/<int:version>/views/<string:view_name>/schema"
+    "/datastack/<string:datastack_name>/version/<int(signed=True):version>/views/<string:view_name>/schema"
 )
 class ViewSchema(Resource):
     method_decorators = [
@@ -2086,7 +2083,7 @@ def get(
 
 
 @client_bp.route(
-    "/datastack/<string:datastack_name>/version/<int:version>/views/schemas"
+    "/datastack/<string:datastack_name>/version/<int(signed=True):version>/views/schemas"
 )
 class ViewSchemas(Resource):
     method_decorators = [

materializationengine/blueprints/client/datastack.py

@@ -37,6 +37,8 @@ def wrapper(*args, **kwargs):
             AnalysisVersion.datastack == target_datastack
         )
         if target_version:
+            if target_version == 0:
+                return f(*args, **kwargs)
             if target_version == -1:
                 return f(*args, **kwargs)
             version_query = version_query.filter(

materializationengine/blueprints/client/utils.py

@@ -3,6 +3,10 @@
 from cloudfiles import compression
 from io import BytesIO
 
+from materializationengine.info_client import get_datastack_info
+from materializationengine.database import sqlalchemy_cache
+from dynamicannotationdb.models import AnalysisVersion
+
 
 def collect_crud_columns(column_names):
     crud_columns = []
@@ -59,6 +63,23 @@ def update_notice_text_warnings(ann_md, warnings, table_name):
     return warnings
 
 
+def get_latest_version(datastack_name):
+    aligned_volume_name = get_datastack_info(datastack_name)["aligned_volume"]["name"]
+    session = sqlalchemy_cache.get(aligned_volume_name)
+    # query the database for the latest valid version
+    response = (
+        session.query(AnalysisVersion)
+        .filter(AnalysisVersion.datastack == datastack_name)
+        .filter(AnalysisVersion.valid)
+        .order_by(AnalysisVersion.time_stamp.desc())
+        .first()
+    )
+    if response is None:
+        return None
+    else:
+        return response.version
+
+
 def create_query_response(
     df,
     warnings,

materializationengine/blueprints/materialize/api.py

@@ -4,7 +4,8 @@
 from dynamicannotationdb.models import AnalysisTable, Base
 from flask import abort, current_app, request
 from flask_accepts import accepts
-from flask_restx import Namespace, Resource, inputs, reqparse
+from flask_restx import Namespace, Resource, inputs, reqparse, fields
+from materializationengine.blueprints.client.utils import get_latest_version
 from materializationengine.blueprints.reset_auth import reset_auth
 from materializationengine.database import (
     create_session,
@@ -24,6 +25,9 @@
 from sqlalchemy.engine.url import make_url
 from sqlalchemy.exc import NoSuchTableError
 from materializationengine.utils import check_write_permission
+import os
+import subprocess
+import cloudfiles
 
 
 from materializationengine.blueprints.materialize.schemas import (
@@ -396,6 +400,141 @@ def post(self, datastack_name: str):
         return 200
 
 
+response_model = mat_bp.model(
+    "Response",
+    {
+        "message": fields.String(description="Response message"),
+        "csv_path": fields.String(description="Path to csv file", required=False),
+        "header_path": fields.String(description="Path to header file", required=False),
+    },
+)
+
+
+@mat_bp.route(
+    "/materialize/run/dump_csv_table/datastack/<string:datastack_name>/version/<int(signed=True):version>/table_name/<string:table_name>/"
+)
+class DumpTableToBucketAsCSV(Resource):
+    @reset_auth
+    @auth_requires_admin
+    @mat_bp.doc("Take table or view and dump it to a bucket as csv", security="apikey")
+    @mat_bp.response(200, "Success", response_model)
+    @mat_bp.response(500, "Internal Server Error", response_model)
+    def post(self, datastack_name: str, version: int, table_name: str):
+        """Dump table to bucket as csv
+
+        Args:
+            datastack_name (str): name of datastack from infoservice
+            version (int): version of datastack
+            table_name (str): name of table or view to dump
+        """
+        mat_db_name = f"{datastack_name}__mat{version}"
+
+        # TODO: add validation of parameters
+        sql_instance_name = current_app.config.get("SQL_INSTANCE_NAME", None)
+        if not sql_instance_name:
+            return {"message": "SQL_INSTANCE_NAME not set in app config"}, 500
+
+        bucket = current_app.config.get("MATERIALIZATION_DUMP_BUCKET", None)
+        if not bucket:
+            return {"message": "MATERIALIZATION_DUMP_BUCKET not set in app config"}, 500
+
+        if version == -1:
+            version = get_latest_version(datastack_name)
+
+        cf = cloudfiles.CloudFiles(bucket)
+        filename = f"{datastack_name}/v{version}/{table_name}.csv.gz"
+
+        cloudpath = os.path.join(bucket, filename)
+        header_file = f"{datastack_name}/v{version}/{table_name}_header.csv"
+        header_cloudpath = os.path.join(bucket, header_file)
+
+        # check if the file already exists
+        if cf.exists(filename):
+            # return a flask respoonse 200 message that says that the file already exitss
+            return {
+                "message": "file already created",
+                "csv_path": cloudpath,
+                "header_path": header_cloudpath,
+            }, 200
+
+        else:
+            # run a gcloud command to activate the service account for gcloud
+            activate_command = [
+                "gcloud",
+                "auth",
+                "activate-service-account",
+                "--key-file",
+                os.environ.get("GOOGLE_APPLICATION_CREDENTIALS"),
+            ]
+            process = subprocess.Popen(
+                activate_command, stdout=subprocess.PIPE, stderr=subprocess.PIPE
+            )
+            stdout, stderr = process.communicate()
+            # run this command and capture the stdout and return code
+            return_code = process.returncode
+            if return_code != 0:
+                return {
+                    "message": f"failed to activate service account using {activate_command}. Error: {stderr.decode()} stdout: {stdout.decode()}"
+                }, 500
+
+            header_command = [
+                "gcloud",
+                "sql",
+                "export",
+                "csv",
+                sql_instance_name,
+                header_cloudpath,
+                "--database",
+                mat_db_name,
+                "--query",
+                f"SELECT column_name, data_type from INFORMATION_SCHEMA.COLUMNS where TABLE_NAME = '{table_name}'",
+            ]
+            process = subprocess.Popen(
+                header_command, stdout=subprocess.PIPE, stderr=subprocess.PIPE
+            )
+            stdout, stderr = process.communicate()
+            # run this command and capture the stdout and return code
+            return_code = process.returncode
+            if return_code != 0:
+                return {
+                    "message": f"header file failed to create using:\
+                          {header_command}. Error: {stderr.decode()} stdout: {stdout.decode()}"
+                }, 500
+
+            # run a gcloud command to select * from table and write it to disk as a csv
+            export_command = [
+                "gcloud",
+                "sql",
+                "export",
+                "csv",
+                sql_instance_name,
+                cloudpath,
+                "--database",
+                mat_db_name,
+                "--async",
+                "--query",
+                f"SELECT * from {table_name}",
+            ]
+
+            process = subprocess.Popen(
+                export_command, stdout=subprocess.PIPE, stderr=subprocess.PIPE
+            )
+            stdout, stderr = process.communicate()
+            # run this command and capture the stdout and return code
+            return_code = process.returncode
+            if return_code != 0:
+                return {
+                    "message": f"file failed to create using: {export_command}. Error: {stderr.decode()} stdout: {stdout.decode()}"
+                }, 500
+
+            else:
+                return {
+                    "message": "file created sucessefully",
+                    "csv_path": cloudpath,
+                    "header_path": header_cloudpath,
+                }, 200
+
+
 @mat_bp.route("/materialize/run/update_database/datastack/<string:datastack_name>")
 class UpdateLiveDatabaseResource(Resource):
     @reset_auth