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community.general/plugins/modules/cloud/google/gc_storage.py
Felix Fontein a96f90ff94
Fix boolean defaults. (#1343)
2020-11-23 11:14:43 +00:00

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Python
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#!/usr/bin/python
#
# Copyright: Ansible Project
# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
from __future__ import absolute_import, division, print_function
__metaclass__ = type
DOCUMENTATION = '''
---
module: gc_storage
short_description: This module manages objects/buckets in Google Cloud Storage.
description:
- This module allows users to manage their objects/buckets in Google Cloud Storage. It allows upload and download operations and can set some
canned permissions. It also allows retrieval of URLs for objects for use in playbooks, and retrieval of string contents of objects. This module
requires setting the default project in GCS prior to playbook usage. See U(https://developers.google.com/storage/docs/reference/v1/apiversion1) for
information about setting the default project.
options:
bucket:
type: str
description:
- Bucket name.
required: true
object:
type: path
description:
- Keyname of the object inside the bucket. Can be also be used to create "virtual directories" (see examples).
src:
type: str
description:
- The source file path when performing a PUT operation.
dest:
type: path
description:
- The destination file path when downloading an object/key with a GET operation.
overwrite:
description:
- Forces an overwrite either locally on the filesystem or remotely with the object/key. Used with PUT and GET operations.
type: bool
default: 'yes'
aliases: [ 'force' ]
permission:
type: str
description:
- This option let's the user set the canned permissions on the object/bucket that are created. The permissions that can be set are 'private',
'public-read', 'authenticated-read'.
default: private
choices: ['private', 'public-read', 'authenticated-read']
headers:
type: dict
description:
- Headers to attach to object.
default: {}
expiration:
type: int
default: 600
description:
- Time limit (in seconds) for the URL generated and returned by GCA when performing a mode=put or mode=get_url operation. This url is only
available when public-read is the acl for the object.
aliases: [expiry]
mode:
type: str
description:
- Switches the module behaviour between upload, download, get_url (return download url) , get_str (download object as string), create (bucket) and
delete (bucket).
required: true
choices: [ 'get', 'put', 'get_url', 'get_str', 'delete', 'create' ]
gs_secret_key:
type: str
description:
- GS secret key. If not set then the value of the GS_SECRET_ACCESS_KEY environment variable is used.
required: true
gs_access_key:
type: str
description:
- GS access key. If not set then the value of the GS_ACCESS_KEY_ID environment variable is used.
required: true
region:
type: str
description:
- The gs region to use. If not defined then the value 'US' will be used. See U(https://cloud.google.com/storage/docs/bucket-locations)
default: 'US'
versioning:
description:
- Whether versioning is enabled or disabled (note that once versioning is enabled, it can only be suspended)
type: bool
default: false
requirements:
- "python >= 2.6"
- "boto >= 2.9"
author:
- Benno Joy (@bennojoy)
- Lukas Beumer (@Nitaco)
'''
EXAMPLES = '''
- name: Upload some content
community.general.gc_storage:
bucket: mybucket
object: key.txt
src: /usr/local/myfile.txt
mode: put
permission: public-read
- name: Upload some headers
community.general.gc_storage:
bucket: mybucket
object: key.txt
src: /usr/local/myfile.txt
headers: '{"Content-Encoding": "gzip"}'
- name: Download some content
community.general.gc_storage:
bucket: mybucket
object: key.txt
dest: /usr/local/myfile.txt
mode: get
- name: Download an object as a string to use else where in your playbook
community.general.gc_storage:
bucket: mybucket
object: key.txt
mode: get_str
- name: Create an empty bucket
community.general.gc_storage:
bucket: mybucket
mode: create
- name: Create a bucket with key as directory
community.general.gc_storage:
bucket: mybucket
object: /my/directory/path
mode: create
- name: Delete a bucket and all contents
community.general.gc_storage:
bucket: mybucket
mode: delete
- name: Create a bucket with versioning enabled
community.general.gc_storage:
bucket: "mybucket"
versioning: yes
mode: create
- name: Create a bucket located in the eu
community.general.gc_storage:
bucket: "mybucket"
region: "europe-west3"
mode: create
'''
import os
try:
import boto
HAS_BOTO = True
except ImportError:
HAS_BOTO = False
from ansible.module_utils.basic import AnsibleModule
def grant_check(module, gs, obj):
try:
acp = obj.get_acl()
if module.params.get('permission') == 'public-read':
grant = [x for x in acp.entries.entry_list if x.scope.type == 'AllUsers']
if not grant:
obj.set_acl('public-read')
module.exit_json(changed=True, result="The objects permission as been set to public-read")
if module.params.get('permission') == 'authenticated-read':
grant = [x for x in acp.entries.entry_list if x.scope.type == 'AllAuthenticatedUsers']
if not grant:
obj.set_acl('authenticated-read')
module.exit_json(changed=True, result="The objects permission as been set to authenticated-read")
except gs.provider.storage_response_error as e:
module.fail_json(msg=str(e))
return True
def key_check(module, gs, bucket, obj):
try:
bucket = gs.lookup(bucket)
key_check = bucket.get_key(obj)
except gs.provider.storage_response_error as e:
module.fail_json(msg=str(e))
if key_check:
grant_check(module, gs, key_check)
return True
else:
return False
def keysum(module, gs, bucket, obj):
bucket = gs.lookup(bucket)
key_check = bucket.get_key(obj)
if not key_check:
return None
md5_remote = key_check.etag[1:-1]
etag_multipart = '-' in md5_remote # Check for multipart, etag is not md5
if etag_multipart is True:
module.fail_json(msg="Files uploaded with multipart of gs are not supported with checksum, unable to compute checksum.")
return md5_remote
def bucket_check(module, gs, bucket):
try:
result = gs.lookup(bucket)
except gs.provider.storage_response_error as e:
module.fail_json(msg=str(e))
if result:
grant_check(module, gs, result)
return True
else:
return False
def create_bucket(module, gs, bucket):
try:
bucket = gs.create_bucket(bucket, transform_headers(module.params.get('headers')), module.params.get('region'))
bucket.set_acl(module.params.get('permission'))
bucket.configure_versioning(module.params.get('versioning'))
except gs.provider.storage_response_error as e:
module.fail_json(msg=str(e))
if bucket:
return True
def delete_bucket(module, gs, bucket):
try:
bucket = gs.lookup(bucket)
bucket_contents = bucket.list()
for key in bucket_contents:
bucket.delete_key(key.name)
bucket.delete()
return True
except gs.provider.storage_response_error as e:
module.fail_json(msg=str(e))
def delete_key(module, gs, bucket, obj):
try:
bucket = gs.lookup(bucket)
bucket.delete_key(obj)
module.exit_json(msg="Object deleted from bucket ", changed=True)
except gs.provider.storage_response_error as e:
module.fail_json(msg=str(e))
def create_dirkey(module, gs, bucket, obj):
try:
bucket = gs.lookup(bucket)
key = bucket.new_key(obj)
key.set_contents_from_string('')
module.exit_json(msg="Virtual directory %s created in bucket %s" % (obj, bucket.name), changed=True)
except gs.provider.storage_response_error as e:
module.fail_json(msg=str(e))
def path_check(path):
if os.path.exists(path):
return True
else:
return False
def transform_headers(headers):
"""
Boto url-encodes values unless we convert the value to `str`, so doing
this prevents 'max-age=100000' from being converted to "max-age%3D100000".
:param headers: Headers to convert
:type headers: dict
:rtype: dict
"""
for key, value in headers.items():
headers[key] = str(value)
return headers
def upload_gsfile(module, gs, bucket, obj, src, expiry):
try:
bucket = gs.lookup(bucket)
key = bucket.new_key(obj)
key.set_contents_from_filename(
filename=src,
headers=transform_headers(module.params.get('headers'))
)
key.set_acl(module.params.get('permission'))
url = key.generate_url(expiry)
module.exit_json(msg="PUT operation complete", url=url, changed=True)
except gs.provider.storage_copy_error as e:
module.fail_json(msg=str(e))
def download_gsfile(module, gs, bucket, obj, dest):
try:
bucket = gs.lookup(bucket)
key = bucket.lookup(obj)
key.get_contents_to_filename(dest)
module.exit_json(msg="GET operation complete", changed=True)
except gs.provider.storage_copy_error as e:
module.fail_json(msg=str(e))
def download_gsstr(module, gs, bucket, obj):
try:
bucket = gs.lookup(bucket)
key = bucket.lookup(obj)
contents = key.get_contents_as_string()
module.exit_json(msg="GET operation complete", contents=contents, changed=True)
except gs.provider.storage_copy_error as e:
module.fail_json(msg=str(e))
def get_download_url(module, gs, bucket, obj, expiry):
try:
bucket = gs.lookup(bucket)
key = bucket.lookup(obj)
url = key.generate_url(expiry)
module.exit_json(msg="Download url:", url=url, expiration=expiry, changed=True)
except gs.provider.storage_response_error as e:
module.fail_json(msg=str(e))
def handle_get(module, gs, bucket, obj, overwrite, dest):
md5_remote = keysum(module, gs, bucket, obj)
md5_local = module.md5(dest)
if md5_local == md5_remote:
module.exit_json(changed=False)
if md5_local != md5_remote and not overwrite:
module.exit_json(msg="WARNING: Checksums do not match. Use overwrite parameter to force download.", failed=True)
else:
download_gsfile(module, gs, bucket, obj, dest)
def handle_put(module, gs, bucket, obj, overwrite, src, expiration):
# Lets check to see if bucket exists to get ground truth.
bucket_rc = bucket_check(module, gs, bucket)
key_rc = key_check(module, gs, bucket, obj)
# Lets check key state. Does it exist and if it does, compute the etag md5sum.
if bucket_rc and key_rc:
md5_remote = keysum(module, gs, bucket, obj)
md5_local = module.md5(src)
if md5_local == md5_remote:
module.exit_json(msg="Local and remote object are identical", changed=False)
if md5_local != md5_remote and not overwrite:
module.exit_json(msg="WARNING: Checksums do not match. Use overwrite parameter to force upload.", failed=True)
else:
upload_gsfile(module, gs, bucket, obj, src, expiration)
if not bucket_rc:
create_bucket(module, gs, bucket)
upload_gsfile(module, gs, bucket, obj, src, expiration)
# If bucket exists but key doesn't, just upload.
if bucket_rc and not key_rc:
upload_gsfile(module, gs, bucket, obj, src, expiration)
def handle_delete(module, gs, bucket, obj):
if bucket and not obj:
if bucket_check(module, gs, bucket):
module.exit_json(msg="Bucket %s and all keys have been deleted." % bucket, changed=delete_bucket(module, gs, bucket))
else:
module.exit_json(msg="Bucket does not exist.", changed=False)
if bucket and obj:
if bucket_check(module, gs, bucket):
if key_check(module, gs, bucket, obj):
module.exit_json(msg="Object has been deleted.", changed=delete_key(module, gs, bucket, obj))
else:
module.exit_json(msg="Object does not exist.", changed=False)
else:
module.exit_json(msg="Bucket does not exist.", changed=False)
else:
module.fail_json(msg="Bucket or Bucket & object parameter is required.", failed=True)
def handle_create(module, gs, bucket, obj):
if bucket and not obj:
if bucket_check(module, gs, bucket):
module.exit_json(msg="Bucket already exists.", changed=False)
else:
module.exit_json(msg="Bucket created successfully", changed=create_bucket(module, gs, bucket))
if bucket and obj:
if obj.endswith('/'):
dirobj = obj
else:
dirobj = obj + "/"
if bucket_check(module, gs, bucket):
if key_check(module, gs, bucket, dirobj):
module.exit_json(msg="Bucket %s and key %s already exists." % (bucket, obj), changed=False)
else:
create_dirkey(module, gs, bucket, dirobj)
else:
create_bucket(module, gs, bucket)
create_dirkey(module, gs, bucket, dirobj)
def main():
module = AnsibleModule(
argument_spec=dict(
bucket=dict(required=True),
object=dict(default=None, type='path'),
src=dict(default=None),
dest=dict(default=None, type='path'),
expiration=dict(type='int', default=600, aliases=['expiry']),
mode=dict(choices=['get', 'put', 'delete', 'create', 'get_url', 'get_str'], required=True),
permission=dict(choices=['private', 'public-read', 'authenticated-read'], default='private'),
headers=dict(type='dict', default={}),
gs_secret_key=dict(no_log=True, required=True),
gs_access_key=dict(required=True),
overwrite=dict(default=True, type='bool', aliases=['force']),
region=dict(default='US', type='str'),
versioning=dict(default=False, type='bool')
),
)
if not HAS_BOTO:
module.fail_json(msg='`boto` 2.9+ is required for this module. Try: pip install `boto` --upgrade')
bucket = module.params.get('bucket')
obj = module.params.get('object')
src = module.params.get('src')
dest = module.params.get('dest')
mode = module.params.get('mode')
expiry = module.params.get('expiration')
gs_secret_key = module.params.get('gs_secret_key')
gs_access_key = module.params.get('gs_access_key')
overwrite = module.params.get('overwrite')
if mode == 'put':
if not src or not object:
module.fail_json(msg="When using PUT, src, bucket, object are mandatory parameters")
if mode == 'get':
if not dest or not object:
module.fail_json(msg="When using GET, dest, bucket, object are mandatory parameters")
try:
gs = boto.connect_gs(gs_access_key, gs_secret_key)
except boto.exception.NoAuthHandlerFound as e:
module.fail_json(msg=str(e))
if mode == 'get':
if not bucket_check(module, gs, bucket) or not key_check(module, gs, bucket, obj):
module.fail_json(msg="Target bucket/key cannot be found", failed=True)
if not path_check(dest):
download_gsfile(module, gs, bucket, obj, dest)
else:
handle_get(module, gs, bucket, obj, overwrite, dest)
if mode == 'put':
if not path_check(src):
module.fail_json(msg="Local object for PUT does not exist", failed=True)
handle_put(module, gs, bucket, obj, overwrite, src, expiry)
# Support for deleting an object if we have both params.
if mode == 'delete':
handle_delete(module, gs, bucket, obj)
if mode == 'create':
handle_create(module, gs, bucket, obj)
if mode == 'get_url':
if bucket and obj:
if bucket_check(module, gs, bucket) and key_check(module, gs, bucket, obj):
get_download_url(module, gs, bucket, obj, expiry)
else:
module.fail_json(msg="Key/Bucket does not exist", failed=True)
else:
module.fail_json(msg="Bucket and Object parameters must be set", failed=True)
# --------------------------- Get the String contents of an Object -------------------------
if mode == 'get_str':
if bucket and obj:
if bucket_check(module, gs, bucket) and key_check(module, gs, bucket, obj):
download_gsstr(module, gs, bucket, obj)
else:
module.fail_json(msg="Key/Bucket does not exist", failed=True)
else:
module.fail_json(msg="Bucket and Object parameters must be set", failed=True)
if __name__ == '__main__':
main()
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