Adds support for COPY TO/FROM Azure Blob Storage

Supports following Azure Blob uri forms:
- `az://{container}/key`
- `azure://{container}/key`
- `https://{account}.blob.core.windows.net/{container}/key`

**Configuration**

The simplest way to configure object storage is by creating the standard [`~/.azure/config`](https://learn.microsoft.com/en-us/cli/azure/azure-cli-configuration?view=azure-cli-latest) file:

```bash
$ cat ~/.azure/config
[storage]
account = devstoreaccount1
key = Eby8vdM02xNOcqFlqUwJPLlmEtlCDXJ1OUzFT50uSRZ6IFsuFq2UVErCz4I6tq/K1SZFPTOtr/KBHBeksoGMGw==
```

Alternatively, you can use the following environment variables when starting postgres to configure the Azure Blob Storage client:
- `AZURE_STORAGE_ACCOUNT`: the storage account name of the Azure Blob
- `AZURE_STORAGE_KEY`: the storage key of the Azure Blob
- `AZURE_STORAGE_SAS_TOKEN`: the storage SAS token for the Azure Blob
- `AZURE_CONFIG_FILE`: an alternative location for the config file

**Bonus**
Additionally, PR supports following S3 uri forms:
- `s3://{bucket}/key`
- `s3a://{bucket}/key`
- `https://s3.amazonaws.com/{bucket}/key`
- `https://{bucket}.s3.amazonaws.com/key`

Closes #50

Author: aykut-bozkurt

.devcontainer/Dockerfile

@@ -6,10 +6,11 @@ ENV TZ="Europe/Istanbul"
 ARG PG_MAJOR=17
 
 # install deps
-RUN apt-get update && apt-get -y install build-essential libreadline-dev zlib1g-dev    \
-                                         flex bison libxml2-dev libxslt-dev libssl-dev \
-                                         libxml2-utils xsltproc ccache pkg-config wget \
-                                         curl lsb-release sudo nano net-tools git awscli
+RUN apt-get update && apt-get -y install build-essential libreadline-dev zlib1g-dev      \
+                                         flex bison libxml2-dev libxslt-dev libssl-dev   \
+                                         libxml2-utils xsltproc ccache pkg-config wget   \
+                                         curl lsb-release ca-certificates gnupg sudo git \
+                                         nano net-tools awscli
 
 # install Postgres
 RUN sh -c 'echo "deb https://apt.postgresql.org/pub/repos/apt $(lsb_release -cs)-pgdg main" > /etc/apt/sources.list.d/pgdg.list'
@@ -19,6 +20,14 @@ RUN apt-get update && apt-get -y install postgresql-${PG_MAJOR}-postgis-3  \
                                          postgresql-client-${PG_MAJOR}     \
                                          libpq-dev
 
+# install azure-cli and azurite
+RUN curl -fsSL https://deb.nodesource.com/setup_20.x | bash -
+RUN apt-get update && apt-get install -y nodejs
+RUN curl -sL https://packages.microsoft.com/keys/microsoft.asc | gpg --dearmor | tee /etc/apt/trusted.gpg.d/microsoft.gpg > /dev/null
+RUN echo "deb [arch=`dpkg --print-architecture` signed-by=/etc/apt/trusted.gpg.d/microsoft.gpg] https://packages.microsoft.com/repos/azure-cli/ `lsb_release -cs` main" | tee /etc/apt/sources.list.d/azure-cli.list
+RUN apt-get update && apt-get install -y azure-cli
+RUN npm install -g azurite
+
 # download and install MinIO server and client
 RUN wget https://dl.min.io/server/minio/release/linux-amd64/minio
 RUN chmod +x minio
@@ -58,11 +67,3 @@ ARG PGRX_VERSION=0.12.6
 RUN cargo install --locked cargo-pgrx@${PGRX_VERSION}
 RUN cargo pgrx init --pg${PG_MAJOR} $(which pg_config)
 RUN echo "shared_preload_libraries = 'pg_parquet'" >> $HOME/.pgrx/data-${PG_MAJOR}/postgresql.conf
-
-ENV MINIO_ROOT_USER=admin
-ENV MINIO_ROOT_PASSWORD=admin123
-ENV AWS_S3_TEST_BUCKET=testbucket
-ENV AWS_REGION=us-east-1
-ENV AWS_ACCESS_KEY_ID=admin
-ENV AWS_SECRET_ACCESS_KEY=admin123
-ENV PG_PARQUET_TEST=true

.devcontainer/devcontainer.json

@@ -15,7 +15,7 @@
             ]
         }
     },
-    "postStartCommand": "bash .devcontainer/scripts/setup-minio.sh",
+    "postStartCommand": "bash .devcontainer/scripts/setup_minio.sh && bash .devcontainer/scripts/setup_azurite.sh",
     "forwardPorts": [
         5432
     ],

.devcontainer/scripts/setup_azurite.sh

@@ -0,0 +1,7 @@
+#!/bin/bash
+
+source setup_test_envs.sh
+
+nohup azurite --location /tmp/azurite-storage > /dev/null 2>&1 &
+
+az storage container create --name "${AZURE_TEST_CONTAINER_NAME}" --public off --connection-string "$AZURE_STORAGE_CONNECTION_STRING"

.devcontainer/scripts/setup-minio.sh .devcontainer/scripts/setup_minio.sh.devcontainer/scripts/setup-minio.sh renamed to .devcontainer/scripts/setup_minio.sh

@@ -1,5 +1,7 @@
 #!/bin/bash
 
+source setup_test_envs.sh
+
 nohup minio server /tmp/minio-storage > /dev/null 2>&1 &
 
 mc alias set local http://localhost:9000 $MINIO_ROOT_USER $MINIO_ROOT_PASSWORD

.devcontainer/scripts/setup_test_envs.sh

@@ -0,0 +1,19 @@
+# S3 tests
+export AWS_ACCESS_KEY_ID=admin
+export AWS_SECRET_ACCESS_KEY=admin123
+export AWS_REGION=us-east-1
+export AWS_S3_TEST_BUCKET=testbucket
+export MINIO_ROOT_USER=admin
+export MINIO_ROOT_PASSWORD=admin123
+
+# Azure Blob tests
+export AZURE_STORAGE_ACCOUNT=devstoreaccount1
+export AZURE_STORAGE_KEY="Eby8vdM02xNOcqFlqUwJPLlmEtlCDXJ1OUzFT50uSRZ6IFsuFq2UVErCz4I6tq/K1SZFPTOtr/KBHBeksoGMGw=="
+export AZURE_STORAGE_CONNECTION_STRING="DefaultEndpointsProtocol=http;AccountName=devstoreaccount1;AccountKey=Eby8vdM02xNOcqFlqUwJPLlmEtlCDXJ1OUzFT50uSRZ6IFsuFq2UVErCz4I6tq/K1SZFPTOtr/KBHBeksoGMGw==;BlobEndpoint=http://localhost:10000/devstoreaccount1;"
+export AZURE_TEST_CONTAINER_NAME=testcontainer
+export AZURE_TEST_READ_ONLY_SAS="se=2100-05-05&sp=r&sv=2022-11-02&sr=c&sig=YMPFnAHKe9y0o3hFegncbwQTXtAyvsJEgPB2Ne1b9CQ%3D"
+export AZURE_TEST_READ_WRITE_SAS="se=2100-05-05&sp=rcw&sv=2022-11-02&sr=c&sig=TPz2jEz0t9L651t6rTCQr%2BOjmJHkM76tnCGdcyttnlA%3D"
+
+# Other
+export PG_PARQUET_TEST=true
+export RUST_TEST_THREADS=1

.env_sample

@@ -70,12 +70,23 @@ jobs:
           sudo sh -c 'echo "deb https://apt.postgresql.org/pub/repos/apt $(lsb_release -cs)-pgdg main" > /etc/apt/sources.list.d/pgdg.list'
           wget --quiet -O - https://www.postgresql.org/media/keys/ACCC4CF8.asc | sudo apt-key add -
           sudo apt-get update
-          sudo apt-get install build-essential libreadline-dev zlib1g-dev flex bison libxml2-dev libxslt-dev libssl-dev libxml2-utils xsltproc ccache pkg-config
+          sudo apt-get -y install build-essential libreadline-dev zlib1g-dev flex bison libxml2-dev \
+                                  libxslt-dev libssl-dev libxml2-utils xsltproc ccache pkg-config   \
+                                  gnupg ca-certificates
           sudo apt-get -y install postgresql-${{ env.PG_MAJOR }}-postgis-3 \
                                   postgresql-server-dev-${{ env.PG_MAJOR }} \
                                   postgresql-client-${{ env.PG_MAJOR }} \
                                   libpq-dev
 
+      - name: Install Azurite
+        run: |
+          curl -fsSL https://deb.nodesource.com/setup_20.x | sudo bash -
+          sudo apt-get update && sudo apt-get install -y nodejs
+          curl -sL https://packages.microsoft.com/keys/microsoft.asc | gpg --dearmor | sudo tee /etc/apt/trusted.gpg.d/microsoft.gpg > /dev/null
+          echo "deb [arch=`dpkg --print-architecture` signed-by=/etc/apt/trusted.gpg.d/microsoft.gpg] https://packages.microsoft.com/repos/azure-cli/ `lsb_release -cs` main" | sudo tee /etc/apt/sources.list.d/azure-cli.list
+          sudo apt-get update && sudo apt-get install -y azure-cli
+          npm install -g azurite
+
       - name: Install MinIO
         run: |
           # Download and install MinIO server and client
@@ -108,23 +119,14 @@ jobs:
                            $(pg_config --sharedir)/extension \
                            /var/run/postgresql/
 
-          # pgrx tests with runas argument ignores environment variables, so
-          # we read env vars from .env file in tests (https://github.com/pgcentralfoundation/pgrx/pull/1674)
-          touch /tmp/.env
-          echo AWS_ACCESS_KEY_ID=${{ env.AWS_ACCESS_KEY_ID }} >> /tmp/.env
-          echo AWS_SECRET_ACCESS_KEY=${{ env.AWS_SECRET_ACCESS_KEY }} >> /tmp/.env
-          echo AWS_S3_TEST_BUCKET=${{ env.AWS_S3_TEST_BUCKET }} >> /tmp/.env
-          echo AWS_REGION=${{ env.AWS_REGION }} >> /tmp/.env
-          echo PG_PARQUET_TEST=${{ env.PG_PARQUET_TEST }} >> /tmp/.env
+          # Set up test environments
+          source .devcontainer/scripts/setup_test_envs.sh
 
           # Start MinIO server
-          export MINIO_ROOT_USER=${{ env.AWS_ACCESS_KEY_ID }}
-          export MINIO_ROOT_PASSWORD=${{ env.AWS_SECRET_ACCESS_KEY }}
-          minio server /tmp/minio-storage > /dev/null 2>&1 &
+          bash .devcontainer/scripts/setup_minio.sh
 
-          # Set access key and create test bucket 
-          mc alias set local http://localhost:9000 ${{ env.AWS_ACCESS_KEY_ID }} ${{ env.AWS_SECRET_ACCESS_KEY }}
-          aws --endpoint-url http://localhost:9000 s3 mb s3://${{ env.AWS_S3_TEST_BUCKET }}
+          # Start Azurite server
+          bash .devcontainer/scripts/setup_azurite.sh
 
           # Run tests with coverage tool
           source <(cargo llvm-cov show-env --export-prefix)
@@ -135,13 +137,9 @@ jobs:
 
           # Stop MinIO server
           pkill -9 minio
-        env:
-          RUST_TEST_THREADS: 1
-          AWS_ACCESS_KEY_ID: test_secret_access_key
-          AWS_SECRET_ACCESS_KEY: test_access_key_id
-          AWS_REGION: us-east-1
-          AWS_S3_TEST_BUCKET: testbucket
-          PG_PARQUET_TEST: true
+
+          # Stop Azurite server
+          pkill -9 node
 
       - name: Upload coverage report to Codecov
         if: ${{ env.PG_MAJOR }} == 17

.github/workflows/ci.yml

@@ -24,9 +24,9 @@ arrow = {version = "53", default-features = false}
 arrow-schema = {version = "53", default-features = false}
 aws-config = { version = "1.5", default-features = false, features = ["rustls"]}
 aws-credential-types = {version = "1.2", default-features = false}
-dotenvy = "0.15"
 futures = "0.3"
-object_store = {version = "0.11", default-features = false, features = ["aws"]}
+home = "0.5"
+object_store = {version = "0.11", default-features = false, features = ["aws", "azure"]}
 once_cell = "1"
 parquet = {version = "53", default-features = false, features = [
     "arrow",
@@ -38,6 +38,7 @@ parquet = {version = "53", default-features = false, features = [
     "object_store",
 ]}
 pgrx = "=0.12.6"
+rust-ini = "0.21"
 tokio = {version = "1", default-features = false, features = ["rt", "time", "macros"]}
 url = "2.5"
 

Cargo.lock

@@ -155,7 +155,13 @@ SELECT uri, encode(key, 'escape') as key, encode(value, 'escape') as value FROM
 ```
 
 ## Object Store Support
-`pg_parquet` supports reading and writing Parquet files from/to `S3` object store. Only the uris with `s3://` scheme is supported. 
+`pg_parquet` supports reading and writing Parquet files from/to `S3` and `Azure Blob Storage` object stores.
+
+> [!NOTE]
+> To be able to write into a object store location, you need to grant `parquet_object_store_write` role to your current postgres user.
+> Similarly, to read from an object store location, you need to grant `parquet_object_store_read` role to your current postgres user.
+
+#### S3 Storage
 
 The simplest way to configure object storage is by creating the standard `~/.aws/credentials` and `~/.aws/config` files:
 
@@ -178,9 +184,33 @@ Alternatively, you can use the following environment variables when starting pos
 - `AWS_CONFIG_FILE`: an alternative location for the config file
 - `AWS_PROFILE`: the name of the profile from the credentials and config file (default profile name is `default`)
 
-> [!NOTE]
-> To be able to write into a object store location, you need to grant `parquet_object_store_write` role to your current postgres user.
-> Similarly, to read from an object store location, you need to grant `parquet_object_store_read` role to your current postgres user.
+Supported S3 uri formats are shown below:
+- s3:// \<bucket\> / \<path\>
+- s3a:// \<bucket\> / \<path\>
+- https:// \<bucket\>.s3.amazonaws.com / \<path\>
+- https:// s3.amazonaws.com / \<bucket\> / \<path\>
+
+#### Azure Blob Storage
+
+The simplest way to configure object storage is by creating the standard [`~/.azure/config`](https://learn.microsoft.com/en-us/cli/azure/azure-cli-configuration?view=azure-cli-latest) file:
+
+```bash
+$ cat ~/.azure/config
+[storage]
+account = devstoreaccount1
+key = Eby8vdM02xNOcqFlqUwJPLlmEtlCDXJ1OUzFT50uSRZ6IFsuFq2UVErCz4I6tq/K1SZFPTOtr/KBHBeksoGMGw==
+```
+
+Alternatively, you can use the following environment variables when starting postgres to configure the Azure Blob Storage client:
+- `AZURE_STORAGE_ACCOUNT`: the storage account name of the Azure Blob
+- `AZURE_STORAGE_KEY`: the storage key of the Azure Blob
+- `AZURE_STORAGE_SAS_TOKEN`: the storage SAS token for the Azure Blob
+- `AZURE_CONFIG_FILE`: an alternative location for the config file
+
+Supported Azure Blob Storage uri formats are shown below:
+- az:// \<container\> / \<path\>
+- azure:// \<container\> / \<path\>
+- https:// \<account\>.blob.core.windows.net / \<container\> / \<path\>
 
 ## Copy Options
 `pg_parquet` supports the following options in the `COPY TO` command: