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albertony a7faf05393 docs: cleanup backend hashes sections

2023-11-20 17:43:57 +00:00

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title	description	versionIntroduced
Swift	Swift	v0.91

{{< icon "fa fa-space-shuttle" >}} Swift

Swift refers to OpenStack Object Storage.
Commercial implementations of that being:

Paths are specified as remote:container (or remote: for the lsd
command.) You may put subdirectories in too, e.g. remote:container/path/to/dir.

Configuration

Here is an example of making a swift configuration. First run

rclone config

This will guide you through an interactive setup process.

No remotes found, make a new one?
n) New remote
s) Set configuration password
q) Quit config
n/s/q> n
name> remote
Type of storage to configure.
Choose a number from below, or type in your own value
[snip]
XX / OpenStack Swift (Rackspace Cloud Files, Blomp Cloud Storage, Memset Memstore, OVH)
   \ "swift"
[snip]
Storage> swift
Get swift credentials from environment variables in standard OpenStack form.
Choose a number from below, or type in your own value
 1 / Enter swift credentials in the next step
   \ "false"
 2 / Get swift credentials from environment vars. Leave other fields blank if using this.
   \ "true"
env_auth> true
User name to log in (OS_USERNAME).
user> 
API key or password (OS_PASSWORD).
key> 
Authentication URL for server (OS_AUTH_URL).
Choose a number from below, or type in your own value
 1 / Rackspace US
   \ "https://auth.api.rackspacecloud.com/v1.0"
 2 / Rackspace UK
   \ "https://lon.auth.api.rackspacecloud.com/v1.0"
 3 / Rackspace v2
   \ "https://identity.api.rackspacecloud.com/v2.0"
 4 / Memset Memstore UK
   \ "https://auth.storage.memset.com/v1.0"
 5 / Memset Memstore UK v2
   \ "https://auth.storage.memset.com/v2.0"
 6 / OVH
   \ "https://auth.cloud.ovh.net/v3"
 7  / Blomp Cloud Storage
   \ "https://authenticate.ain.net"
auth> 
User ID to log in - optional - most swift systems use user and leave this blank (v3 auth) (OS_USER_ID).
user_id> 
User domain - optional (v3 auth) (OS_USER_DOMAIN_NAME)
domain> 
Tenant name - optional for v1 auth, this or tenant_id required otherwise (OS_TENANT_NAME or OS_PROJECT_NAME)
tenant> 
Tenant ID - optional for v1 auth, this or tenant required otherwise (OS_TENANT_ID)
tenant_id> 
Tenant domain - optional (v3 auth) (OS_PROJECT_DOMAIN_NAME)
tenant_domain> 
Region name - optional (OS_REGION_NAME)
region> 
Storage URL - optional (OS_STORAGE_URL)
storage_url> 
Auth Token from alternate authentication - optional (OS_AUTH_TOKEN)
auth_token> 
AuthVersion - optional - set to (1,2,3) if your auth URL has no version (ST_AUTH_VERSION)
auth_version> 
Endpoint type to choose from the service catalogue (OS_ENDPOINT_TYPE)
Choose a number from below, or type in your own value
 1 / Public (default, choose this if not sure)
   \ "public"
 2 / Internal (use internal service net)
   \ "internal"
 3 / Admin
   \ "admin"
endpoint_type> 
Remote config
--------------------
[test]
env_auth = true
user = 
key = 
auth = 
user_id = 
domain = 
tenant = 
tenant_id = 
tenant_domain = 
region = 
storage_url = 
auth_token = 
auth_version = 
endpoint_type = 
--------------------
y) Yes this is OK
e) Edit this remote
d) Delete this remote
y/e/d> y

This remote is called remote and can now be used like this

See all containers

rclone lsd remote:

Make a new container

rclone mkdir remote:container

List the contents of a container

rclone ls remote:container

Sync /home/local/directory to the remote container, deleting any
excess files in the container.

rclone sync --interactive /home/local/directory remote:container

Configuration from an OpenStack credentials file

An OpenStack credentials file typically looks something something
like this (without the comments)

export OS_AUTH_URL=https://a.provider.net/v2.0
export OS_TENANT_ID=ffffffffffffffffffffffffffffffff
export OS_TENANT_NAME="1234567890123456"
export OS_USERNAME="123abc567xy"
echo "Please enter your OpenStack Password: "
read -sr OS_PASSWORD_INPUT
export OS_PASSWORD=$OS_PASSWORD_INPUT
export OS_REGION_NAME="SBG1"
if [ -z "$OS_REGION_NAME" ]; then unset OS_REGION_NAME; fi

The config file needs to look something like this where $OS_USERNAME
represents the value of the OS_USERNAME variable - 123abc567xy in
the example above.

[remote]
type = swift
user = $OS_USERNAME
key = $OS_PASSWORD
auth = $OS_AUTH_URL
tenant = $OS_TENANT_NAME

Note that you may (or may not) need to set region too - try without first.

Configuration from the environment

If you prefer you can configure rclone to use swift using a standard
set of OpenStack environment variables.

When you run through the config, make sure you choose true for
env_auth and leave everything else blank.

rclone will then set any empty config parameters from the environment
using standard OpenStack environment variables. There is a list of
the
variables
in the docs for the swift library.

Using an alternate authentication method

If your OpenStack installation uses a non-standard authentication method
that might not be yet supported by rclone or the underlying swift library,
you can authenticate externally (e.g. calling manually the openstack
commands to get a token). Then, you just need to pass the two
configuration variables auth_token and storage_url.
If they are both provided, the other variables are ignored. rclone will
not try to authenticate but instead assume it is already authenticated
and use these two variables to access the OpenStack installation.

Using rclone without a config file

You can use rclone with swift without a config file, if desired, like
this:

source openstack-credentials-file
export RCLONE_CONFIG_MYREMOTE_TYPE=swift
export RCLONE_CONFIG_MYREMOTE_ENV_AUTH=true
rclone lsd myremote:

--fast-list

This remote supports --fast-list which allows you to use fewer
transactions in exchange for more memory. See the rclone
docs for more details.

--update and --use-server-modtime

As noted below, the modified time is stored on metadata on the object. It is
used by default for all operations that require checking the time a file was
last updated. It allows rclone to treat the remote more like a true filesystem,
but it is inefficient because it requires an extra API call to retrieve the
metadata.

For many operations, the time the object was last uploaded to the remote is
sufficient to determine if it is "dirty". By using --update along with
--use-server-modtime, you can avoid the extra API call and simply upload
files whose local modtime is newer than the time it was last uploaded.

Modification times and hashes

The modified time is stored as metadata on the object as
X-Object-Meta-Mtime as floating point since the epoch accurate to 1
ns.

This is a de facto standard (used in the official python-swiftclient
amongst others) for storing the modification time for an object.

The MD5 hash algorithm is supported.

Restricted filename characters

Character	Value	Replacement
NUL	0x00	␀
/	0x2F	／

Invalid UTF-8 bytes will also be replaced,
as they can't be used in JSON strings.

{{< rem autogenerated options start" - DO NOT EDIT - instead edit fs.RegInfo in backend/swift/swift.go then run make backenddocs" >}}

Standard options

Here are the Standard options specific to swift (OpenStack Swift (Rackspace Cloud Files, Blomp Cloud Storage, Memset Memstore, OVH)).

--swift-env-auth

Get swift credentials from environment variables in standard OpenStack form.

Properties:

Config: env_auth
Env Var: RCLONE_SWIFT_ENV_AUTH
Type: bool
Default: false
Examples:
- "false"
  - Enter swift credentials in the next step.
- "true"
  - Get swift credentials from environment vars.
  - Leave other fields blank if using this.

--swift-user

User name to log in (OS_USERNAME).

Properties:

Config: user
Env Var: RCLONE_SWIFT_USER
Type: string
Required: false

--swift-key

API key or password (OS_PASSWORD).

Properties:

Config: key
Env Var: RCLONE_SWIFT_KEY
Type: string
Required: false

--swift-auth

Authentication URL for server (OS_AUTH_URL).

Properties:

Config: auth
Env Var: RCLONE_SWIFT_AUTH
Type: string
Required: false
Examples:
- "https://auth.api.rackspacecloud.com/v1.0"
  - Rackspace US
- "https://lon.auth.api.rackspacecloud.com/v1.0"
  - Rackspace UK
- "https://identity.api.rackspacecloud.com/v2.0"
  - Rackspace v2
- "https://auth.storage.memset.com/v1.0"
  - Memset Memstore UK
- "https://auth.storage.memset.com/v2.0"
  - Memset Memstore UK v2
- "https://auth.cloud.ovh.net/v3"
  - OVH
- "https://authenticate.ain.net"
  - Blomp Cloud Storage

--swift-user-id

User ID to log in - optional - most swift systems use user and leave this blank (v3 auth) (OS_USER_ID).

Properties:

Config: user_id
Env Var: RCLONE_SWIFT_USER_ID
Type: string
Required: false

--swift-domain

User domain - optional (v3 auth) (OS_USER_DOMAIN_NAME)

Properties:

Config: domain
Env Var: RCLONE_SWIFT_DOMAIN
Type: string
Required: false

--swift-tenant

Tenant name - optional for v1 auth, this or tenant_id required otherwise (OS_TENANT_NAME or OS_PROJECT_NAME).

Properties:

Config: tenant
Env Var: RCLONE_SWIFT_TENANT
Type: string
Required: false

--swift-tenant-id

Tenant ID - optional for v1 auth, this or tenant required otherwise (OS_TENANT_ID).

Properties:

Config: tenant_id
Env Var: RCLONE_SWIFT_TENANT_ID
Type: string
Required: false

--swift-tenant-domain

Tenant domain - optional (v3 auth) (OS_PROJECT_DOMAIN_NAME).

Properties:

Config: tenant_domain
Env Var: RCLONE_SWIFT_TENANT_DOMAIN
Type: string
Required: false

--swift-region

Region name - optional (OS_REGION_NAME).

Properties:

Config: region
Env Var: RCLONE_SWIFT_REGION
Type: string
Required: false

--swift-storage-url

Storage URL - optional (OS_STORAGE_URL).

Properties:

Config: storage_url
Env Var: RCLONE_SWIFT_STORAGE_URL
Type: string
Required: false

--swift-auth-token

Auth Token from alternate authentication - optional (OS_AUTH_TOKEN).

Properties:

Config: auth_token
Env Var: RCLONE_SWIFT_AUTH_TOKEN
Type: string
Required: false

--swift-application-credential-id

Application Credential ID (OS_APPLICATION_CREDENTIAL_ID).

Properties:

Config: application_credential_id
Env Var: RCLONE_SWIFT_APPLICATION_CREDENTIAL_ID
Type: string
Required: false

--swift-application-credential-name

Application Credential Name (OS_APPLICATION_CREDENTIAL_NAME).

Properties:

Config: application_credential_name
Env Var: RCLONE_SWIFT_APPLICATION_CREDENTIAL_NAME
Type: string
Required: false

--swift-application-credential-secret

Application Credential Secret (OS_APPLICATION_CREDENTIAL_SECRET).

Properties:

Config: application_credential_secret
Env Var: RCLONE_SWIFT_APPLICATION_CREDENTIAL_SECRET
Type: string
Required: false

--swift-auth-version

AuthVersion - optional - set to (1,2,3) if your auth URL has no version (ST_AUTH_VERSION).

Properties:

Config: auth_version
Env Var: RCLONE_SWIFT_AUTH_VERSION
Type: int
Default: 0

--swift-endpoint-type

Endpoint type to choose from the service catalogue (OS_ENDPOINT_TYPE).

Properties:

Config: endpoint_type
Env Var: RCLONE_SWIFT_ENDPOINT_TYPE
Type: string
Default: "public"
Examples:
- "public"
  - Public (default, choose this if not sure)
- "internal"
  - Internal (use internal service net)
- "admin"
  - Admin

--swift-storage-policy

The storage policy to use when creating a new container.

This applies the specified storage policy when creating a new
container. The policy cannot be changed afterwards. The allowed
configuration values and their meaning depend on your Swift storage
provider.

Properties:

Config: storage_policy
Env Var: RCLONE_SWIFT_STORAGE_POLICY
Type: string
Required: false
Examples:
- ""
  - Default
- "pcs"
  - OVH Public Cloud Storage
- "pca"
  - OVH Public Cloud Archive

Advanced options

Here are the Advanced options specific to swift (OpenStack Swift (Rackspace Cloud Files, Blomp Cloud Storage, Memset Memstore, OVH)).

--swift-leave-parts-on-error

If true avoid calling abort upload on a failure.

It should be set to true for resuming uploads across different sessions.

Properties:

Config: leave_parts_on_error
Env Var: RCLONE_SWIFT_LEAVE_PARTS_ON_ERROR
Type: bool
Default: false

--swift-chunk-size

Above this size files will be chunked into a _segments container.

Above this size files will be chunked into a _segments container. The
default for this is 5 GiB which is its maximum value.

Properties:

Config: chunk_size
Env Var: RCLONE_SWIFT_CHUNK_SIZE
Type: SizeSuffix
Default: 5Gi

--swift-no-chunk

Don't chunk files during streaming upload.

When doing streaming uploads (e.g. using rcat or mount) setting this
flag will cause the swift backend to not upload chunked files.

This will limit the maximum upload size to 5 GiB. However non chunked
files are easier to deal with and have an MD5SUM.

Rclone will still chunk files bigger than chunk_size when doing normal
copy operations.

Properties:

Config: no_chunk
Env Var: RCLONE_SWIFT_NO_CHUNK
Type: bool
Default: false

--swift-no-large-objects

Disable support for static and dynamic large objects

Swift cannot transparently store files bigger than 5 GiB. There are
two schemes for doing that, static or dynamic large objects, and the
API does not allow rclone to determine whether a file is a static or
dynamic large object without doing a HEAD on the object. Since these
need to be treated differently, this means rclone has to issue HEAD
requests for objects for example when reading checksums.

When no_large_objects is set, rclone will assume that there are no
static or dynamic large objects stored. This means it can stop doing
the extra HEAD calls which in turn increases performance greatly
especially when doing a swift to swift transfer with --checksum set.

Setting this option implies no_chunk and also that no files will be
uploaded in chunks, so files bigger than 5 GiB will just fail on
upload.

If you set this option and there are static or dynamic large objects,
then this will give incorrect hashes for them. Downloads will succeed,
but other operations such as Remove and Copy will fail.

Properties:

Config: no_large_objects
Env Var: RCLONE_SWIFT_NO_LARGE_OBJECTS
Type: bool
Default: false

--swift-encoding

The encoding for the backend.

See the encoding section in the overview for more info.

Properties:

Config: encoding
Env Var: RCLONE_SWIFT_ENCODING
Type: MultiEncoder
Default: Slash,InvalidUtf8

Limitations

The Swift API doesn't return a correct MD5SUM for segmented files
(Dynamic or Static Large Objects) so rclone won't check or use the
MD5SUM for these.

Troubleshooting

Rclone gives Failed to create file system for "remote:": Bad Request

Due to an oddity of the underlying swift library, it gives a "Bad
Request" error rather than a more sensible error when the
authentication fails for Swift.

So this most likely means your username / password is wrong. You can
investigate further with the --dump-bodies flag.

This may also be caused by specifying the region when you shouldn't
have (e.g. OVH).

Rclone gives Failed to create file system: Response didn't have storage url and auth token

This is most likely caused by forgetting to specify your tenant when
setting up a swift remote.

OVH Cloud Archive

To use rclone with OVH cloud archive, first use rclone config to set up a swift backend with OVH, choosing pca as the storage_policy.

Uploading Objects

Uploading objects to OVH cloud archive is no different to object storage, you just simply run the command you like (move, copy or sync) to upload the objects. Once uploaded the objects will show in a "Frozen" state within the OVH control panel.

Retrieving Objects

To retrieve objects use rclone copy as normal. If the objects are in a frozen state then rclone will ask for them all to be unfrozen and it will wait at the end of the output with a message like the following:

2019/03/23 13:06:33 NOTICE: Received retry after error - sleeping until 2019-03-23T13:16:33.481657164+01:00 (9m59.99985121s)

Rclone will wait for the time specified then retry the copy.

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{{< icon "fa fa-space-shuttle" >}} Swift

Configuration

Configuration from an OpenStack credentials file

Configuration from the environment

Using an alternate authentication method

Using rclone without a config file

--fast-list

--update and --use-server-modtime

Modification times and hashes

Restricted filename characters

Standard options

--swift-env-auth

--swift-user

--swift-key

--swift-auth

--swift-user-id

--swift-domain

--swift-tenant

--swift-tenant-id

--swift-tenant-domain

--swift-region

--swift-storage-url

--swift-auth-token

--swift-application-credential-id

--swift-application-credential-name

--swift-application-credential-secret

--swift-auth-version

--swift-endpoint-type

--swift-storage-policy

Advanced options

--swift-leave-parts-on-error

--swift-chunk-size

--swift-no-chunk

--swift-no-large-objects

--swift-encoding

Limitations

Troubleshooting

Rclone gives Failed to create file system for "remote:": Bad Request

Rclone gives Failed to create file system: Response didn't have storage url and auth token

OVH Cloud Archive

Uploading Objects

Retrieving Objects

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