[OCI] Support OCI Object Storage

examples/oci/dataset-mount.yaml

@@ -0,0 +1,35 @@
+name: cpu-task1
+
+resources:
+  cloud: oci
+  region: us-sanjose-1
+  cpus: 2
+  disk_size: 256
+  disk_tier: medium
+  use_spot: False
+
+file_mounts:
+  # Mount an existing oci bucket
+  /datasets-storage:
+    source: oci://skybucket
+    mode: MOUNT  # Either MOUNT or COPY. Optional.
+
+# Working directory (optional) containing the project codebase.
+# Its contents are synced to ~/sky_workdir/ on the cluster.
+workdir: .
+
+num_nodes: 1
+
+# Typical use: pip install -r requirements.txt
+# Invoked under the workdir (i.e., can use its files).
+setup: |
+  echo "*** Running setup for the task. ***"
+
+# Typical use: make use of resources, such as running training.
+# Invoked under the workdir (i.e., can use its files).
+run: |
+  echo "*** Running the task on OCI ***"
+  timestamp=$(date +%s)
+  ls -lthr /datasets-storage
+  echo "hi" >> /datasets-storage/foo.txt
+  ls -lthr /datasets-storage

examples/oci/dataset-upload-and-mount.yaml

@@ -0,0 +1,36 @@
+name: cpu-task1
+
+resources:
+  cloud: oci
+  region: us-sanjose-1
+  cpus: 2
+  disk_size: 256
+  disk_tier: medium
+  use_spot: False
+
+file_mounts:
+  /datasets-storage:
+    name: skybucket  # Name of storage, optional when source is bucket URI
+    source: ['./examples/oci']  # Source path, can be local or bucket URL. Optional, do not specify to create an empty bucket.
+    store: oci  # E.g 'oci', 's3', 'gcs'...; default: None. Optional.
+    persistent: True  # Defaults to True; can be set to false. Optional.
+    mode: MOUNT  # Either MOUNT or COPY. Optional.
+
+# Working directory (optional) containing the project codebase.
+# Its contents are synced to ~/sky_workdir/ on the cluster.
+workdir: .
+
+num_nodes: 1
+
+# Typical use: pip install -r requirements.txt
+# Invoked under the workdir (i.e., can use its files).
+setup: |
+  echo "*** Running setup for the task. ***"
+
+# Typical use: make use of resources, such as running training.
+# Invoked under the workdir (i.e., can use its files).
+run: |
+  echo "*** Running the task on OCI ***"
+  ls -lthr /datasets-storage
+  echo "hi" >> /datasets-storage/foo.txt
+  ls -lthr /datasets-storage

examples/oci/oci-mounts.yaml

@@ -0,0 +1,26 @@
+resources:
+  cloud: oci
+
+file_mounts:
+  ~/tmpfile: ~/tmpfile
+  ~/a/b/c/tmpfile: ~/tmpfile
+  /tmp/workdir: ~/tmp-workdir
+
+  /mydir:
+    name: skybucket
+    source: ['~/tmp-workdir']
+    store: oci
+    mode: MOUNT
+
+setup: |
+  echo "*** Setup ***"
+
+run: |
+  echo "*** Run ***"
+
+  ls -lthr ~/tmpfile
+  ls -lthr ~/a/b/c
+  echo hi >> /tmp/workdir/new_file
+  ls -lthr /tmp/workdir
+
+  ls -lthr /mydir

sky/adaptors/oci.py

@@ -1,9 +1,11 @@
 """Oracle OCI cloud adaptor"""
 
+import functools
 import logging
 import os
 
 from sky.adaptors import common
+from sky.clouds.utils import oci_utils
 
 # Suppress OCI circuit breaker logging before lazy import, because
 # oci modules prints additional message during imports, i.e., the
@@ -30,10 +32,16 @@ def get_config_file() -> str:
 
 def get_oci_config(region=None, profile='DEFAULT'):
     conf_file_path = get_config_file()
+    if not profile or profile == 'DEFAULT':
+        config_profile = oci_utils.oci_config.get_profile()
+    else:
+        config_profile = profile
+
     oci_config = oci.config.from_file(file_location=conf_file_path,
-                                      profile_name=profile)
+                                      profile_name=config_profile)
     if region is not None:
         oci_config['region'] = region
+
     return oci_config
 
 
@@ -54,6 +62,29 @@ def get_identity_client(region=None, profile='DEFAULT'):
     return oci.identity.IdentityClient(get_oci_config(region, profile))
 
 
+def get_object_storage_client(region=None, profile='DEFAULT'):
+    return oci.object_storage.ObjectStorageClient(
+        get_oci_config(region, profile))
+
+
 def service_exception():
     """OCI service exception."""
     return oci.exceptions.ServiceError
+
+
+def with_oci_env(f):
+
+    @functools.wraps(f)
+    def wrapper(*args, **kwargs):
+        # pylint: disable=line-too-long
+        enter_env_cmds = [
+            'conda info --envs | grep "sky-oci-cli-env" || conda create -n sky-oci-cli-env python=3.10 -y',
+            '. $(conda info --base 2> /dev/null)/etc/profile.d/conda.sh > /dev/null 2>&1 || true',
+            'conda activate sky-oci-cli-env', 'pip install oci-cli',
+            'export OCI_CLI_SUPPRESS_FILE_PERMISSIONS_WARNING=True'
+        ]
+        operation_cmd = [f(*args, **kwargs)]
+        leave_env_cmds = ['conda deactivate']
+        return ' && '.join(enter_env_cmds + operation_cmd + leave_env_cmds)
+
+    return wrapper

sky/cloud_stores.py

@@ -7,6 +7,7 @@
 * Better interface.
 * Better implementation (e.g., fsspec, smart_open, using each cloud's SDK).
 """
+import os
 import shlex
 import subprocess
 import time
@@ -18,6 +19,7 @@
 from sky.adaptors import azure
 from sky.adaptors import cloudflare
 from sky.adaptors import ibm
+from sky.adaptors import oci
 from sky.clouds import gcp
 from sky.data import data_utils
 from sky.data.data_utils import Rclone
@@ -470,6 +472,64 @@ def make_sync_file_command(self, source: str, destination: str) -> str:
         return self.make_sync_dir_command(source, destination)
 
 
+class OciCloudStorage(CloudStorage):
+    """OCI Cloud Storage."""
+
+    def is_directory(self, url: str) -> bool:
+        """Returns whether OCI 'url' is a directory.
+        In cloud object stores, a "directory" refers to a regular object whose
+        name is a prefix of other objects.
+        """
+        bucket_name, path = data_utils.split_oci_path(url)
+
+        client = oci.get_object_storage_client()
+        namespace = client.get_namespace(
+            compartment_id=oci.get_oci_config()['tenancy']).data
+
+        objects = client.list_objects(namespace_name=namespace,
+                                      bucket_name=bucket_name,
+                                      prefix=path).data.objects
+
+        if len(objects) == 0:
+            # A directory with few or no items
+            return True
+
+        if len(objects) > 1:
+            # A directory with more than 1 items
+            return True
+
+        object_name = objects[0].name
+        if path.endswith(object_name):
+            # An object path
+            return False
+
+        # A directory with only 1 item
+        return True
+
+    @oci.with_oci_env
+    def make_sync_dir_command(self, source: str, destination: str) -> str:
+        """Downloads using OCI CLI."""
+        bucket_name, path = data_utils.split_oci_path(source)
+
+        download_via_ocicli = (f'oci os object sync --no-follow-symlinks '
+                               f'--bucket-name {bucket_name} '
+                               f'--prefix "{path}" --dest-dir "{destination}"')
+
+        return download_via_ocicli
+
+    @oci.with_oci_env
+    def make_sync_file_command(self, source: str, destination: str) -> str:
+        """Downloads a file using OCI CLI."""
+        bucket_name, path = data_utils.split_oci_path(source)
+        filename = os.path.basename(path)
+        destination = os.path.join(destination, filename)
+
+        download_via_ocicli = (f'oci os object get --bucket-name {bucket_name} '
+                               f'--name "{path}" --file "{destination}"')
+
+        return download_via_ocicli
+
+
 def get_storage_from_path(url: str) -> CloudStorage:
     """Returns a CloudStorage by identifying the scheme:// in a URL."""
     result = urllib.parse.urlsplit(url)
@@ -485,6 +545,7 @@ def get_storage_from_path(url: str) -> CloudStorage:
     's3': S3CloudStorage(),
     'r2': R2CloudStorage(),
     'cos': IBMCosCloudStorage(),
+    'oci': OciCloudStorage(),
     # TODO: This is a hack, as Azure URL starts with https://, we should
     # refactor the registry to be able to take regex, so that Azure blob can
     # be identified with `https://(.*?)\.blob\.core\.windows\.net`

sky/data/data_transfer.py

@@ -200,3 +200,40 @@ def _add_bucket_iam_member(bucket_name: str, role: str, member: str) -> None:
     bucket.set_iam_policy(policy)
 
     logger.debug(f'Added {member} with role {role} to {bucket_name}.')
+
+
+def s3_to_oci(s3_bucket_name: str, oci_bucket_name: str) -> None:
+    """Creates a one-time transfer from Amazon S3 to OCI Object Storage.
+    Args:
+      s3_bucket_name: str; Name of the Amazon S3 Bucket
+      oci_bucket_name: str; Name of the OCI Bucket
+    """
+    # TODO(HysunHe): Implement sync with other clouds (s3, gs)
+    raise NotImplementedError('Moving data directly from S3 to OCI bucket '
+                              'is currently not supported. Please specify '
+                              'a local source for the storage object.')
+
+
+def gcs_to_oci(gs_bucket_name: str, oci_bucket_name: str) -> None:
+    """Creates a one-time transfer from Google Cloud Storage to
+    OCI Object Storage.
+    Args:
+      gs_bucket_name: str; Name of the Google Cloud Storage Bucket
+      oci_bucket_name: str; Name of the OCI Bucket
+    """
+    # TODO(HysunHe): Implement sync with other clouds (s3, gs)
+    raise NotImplementedError('Moving data directly from GCS to OCI bucket '
+                              'is currently not supported. Please specify '
+                              'a local source for the storage object.')
+
+
+def r2_to_oci(r2_bucket_name: str, oci_bucket_name: str) -> None:
+    """Creates a one-time transfer from Cloudflare R2 to OCI Bucket.
+    Args:
+      r2_bucket_name: str; Name of the Cloudflare R2 Bucket
+      oci_bucket_name: str; Name of the OCI Bucket
+    """
+    raise NotImplementedError(
+        'Moving data directly from Cloudflare R2 to OCI '
+        'bucket is currently not supported. Please specify '
+        'a local source for the storage object.')

sky/data/data_utils.py

@@ -730,3 +730,14 @@ def _remove_bucket_profile_rclone(bucket_name: str,
                 lines_to_keep.append(line)
 
         return lines_to_keep
+
+
+def split_oci_path(oci_path: str) -> Tuple[str, str]:
+    """Splits OCI Path into Bucket name and Relative Path to Bucket
+    Args:
+      oci_path: str; OCI Path, e.g. oci://imagenet/train/
+    """
+    path_parts = oci_path.replace('oci://', '').split('/')
+    bucket = path_parts.pop(0)
+    key = '/'.join(path_parts)
+    return bucket, key

sky/data/mounting_utils.py

@@ -19,6 +19,7 @@
 _BLOBFUSE_CACHE_ROOT_DIR = '~/.sky/blobfuse2_cache'
 _BLOBFUSE_CACHE_DIR = ('~/.sky/blobfuse2_cache/'
                        '{storage_account_name}_{container_name}')
+RCLONE_VERSION = 'v1.68.2'
 
 
 def get_s3_mount_install_cmd() -> str:
@@ -158,6 +159,48 @@ def get_cos_mount_cmd(rclone_config_data: str, rclone_config_path: str,
     return mount_cmd
 
 
+def get_rclone_install_cmd() -> str:
+    """ RClone installation for both apt-get and rpm.
+    This would be common command.
+    """
+    # pylint: disable=line-too-long
+    install_cmd = (
+        f'(which dpkg > /dev/null 2>&1 && (which rclone > /dev/null || (cd ~ > /dev/null'
+        f' && curl -O https://downloads.rclone.org/{RCLONE_VERSION}/rclone-{RCLONE_VERSION}-linux-amd64.deb'
+        f' && sudo dpkg -i rclone-{RCLONE_VERSION}-linux-amd64.deb'
+        f' && rm -f rclone-{RCLONE_VERSION}-linux-amd64.deb)))'
+        f' || (which rclone > /dev/null || (cd ~ > /dev/null'
+        f' && curl -O https://downloads.rclone.org/{RCLONE_VERSION}/rclone-{RCLONE_VERSION}-linux-amd64.rpm'
+        f' && sudo yum --nogpgcheck install rclone-{RCLONE_VERSION}-linux-amd64.rpm -y'
+        f' && rm -f rclone-{RCLONE_VERSION}-linux-amd64.rpm))')
+    return install_cmd
+
+
+def get_oci_mount_cmd(mount_path: str, store_name: str, region: str,
+                      namespace: str, compartment: str, config_file: str,
+                      config_profile: str) -> str:
+    """ OCI specific RClone mount command for oci object storage. """
+    # pylint: disable=line-too-long
+    mount_cmd = (
+        f'sudo chown -R `whoami` {mount_path}'
+        f' && rclone config create oos_{store_name} oracleobjectstorage'
+        f' provider user_principal_auth namespace {namespace}'
+        f' compartment {compartment} region {region}'
+        f' oci-config-file {config_file}'
+        f' oci-config-profile {config_profile}'
+        f' && sed -i "s/oci-config-file/config_file/g;'
+        f' s/oci-config-profile/config_profile/g" ~/.config/rclone/rclone.conf'
+        f' && ([ ! -f /bin/fusermount3 ] && sudo ln -s /bin/fusermount /bin/fusermount3 || true)'
+        f' && (grep -q {mount_path} /proc/mounts || rclone mount oos_{store_name}:{store_name} {mount_path} --daemon --allow-non-empty)'
+    )
+    return mount_cmd
+
+
+def get_rclone_version_check_cmd() -> str:
+    """ RClone version check. This would be common command. """
+    return f'rclone --version | grep -q {RCLONE_VERSION}'
+
+
 def _get_mount_binary(mount_cmd: str) -> str:
     """Returns mounting binary in string given as the mount command.