UbuntuOne
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| '''Ubuntu One''' is a blanket name for what is destined to be a suite of online services from Canonical. | ''''Ubuntu One service will be discontinued on June 2014. If you have files on Ubuntu one you should save them on your computer before this date to avoid losing data.'''' |
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| So far there is only one service, a Dropbox-like service for file exchange and mirroring. It is currently in beta. | |
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| <<TableOfContents(6)>> = Invitations = To get access to Ubuntu ONE(TM) go to https://ubuntuone.com and log in with your Launchpad account. This will generate a request to join the beta test. Alternatively ask someone already with an account to share something with you. The IRC channel at [[irc://irc.freenode.net/ubuntuone|#ubuntuone]] on `irc.freenode.net` is a good place to ask questions. [[https://answers.launchpad.net/ubuntuone|Launchpad Answers]] is another good resource. There is already some information regarding [[https://answers.launchpad.net/ubunet/+faq/577|how long it takes for beta test invitation requests to be granted]]. |
<<Include(UbuntuOne/MenuBar)>> ||<tablestyle="float:right; font-size: 0.9em; width:30%; background:#F1F1ED; background-repeat: no-repeat; background-position: 98% 0.5ex; margin: 1em 0em 0em 1em; padding: 1em;"><<TableOfContents(2)>>|| |
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| * The log file is at `~/.cache/ubuntuone/log/syncdaemon.log` * There is as yet no indicator of the remaining time/bytes. * The sync algorithm handles partial downloads of files and resumes from interruptions. * If a file changes the entire file is re-copied; deltas are planned but not yet implemented. * At the moment it will only sync files in the ~/Ubuntu One folder, but it could do more in future, perhaps synchronising /var/www from a server for example. * The plans are 2GB of free storage and a paid for 10GB option. More than 10GB is not currently available. * The data is stored on the Amazon S3 servers in both the UK and the USA. |
[[https://one.ubuntu.com/|Ubuntu One]] is a suite of online services from [[http://canonical.com/|Canonical]]. The service enables users to store and sync files online and between computers and share files and folders with others using file synchronization. Unlike the traditional storage application and service, what sets Ubuntu One apart is additional features like the integration with other services. Ubuntu One offers integration with Evolution for syncing contacts and with Tomboy for notes due to the access to the local CouchDB instance. Further possibilities include the capability of editing the contacts, as well as the Tomboy notes, online via the Ubuntu One Web interface. <<BR>> |
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| === Areas needing extensive testing === | == News&Information == There are many ways to keep learn about what Ubuntu one is up to and stay in touch: |
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| * Putting files in and out whilst synchronising * Interrupted synchronisations * Deletions * Copy the ~/Ubuntu One folder or some part of it from one computer to another via sftp or otherwise and let U1 pick up synchronisation * Conflicts ("simultaneous" modifications to the same file from different locations) |
* '''[[http://voices.canonical.com/ubuntuone/|Ubuntu One blog]]''' * '''[[http://twitter.com/UbuntuOne|Twitter]]''' * '''[[http://identi.ca/UbuntuOne|Identi.ca]]''' * '''[[http://facebook.com/ubuntuone|Facebook]]''' |
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| === Reporting bugs === You may be requested to submit part of your log file. Please bear in mind this contains filenames when posting a public bug report or posting on IRC. |
== FAQs == * '''[[https://one.ubuntu.com/help/faq/|Ubuntu One FAQs]]''' |
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| The command | == SupportOptions == Ubuntu One’s support options can be found at the [[https://one.ubuntu.com/support|Ubuntu One web site]]. |
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| `tail -n 100 logfile | pastebinit` | == Tutorials == We have prepared some [[https://one.ubuntu.com/help/tutorial/|tutorials]] on a variety of topics to help Ubuntu One users up and running. |
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| will put the last 100 lines of `logfile` on pastebin and give you a URL suitable for discussing on IRC. | == TechnicalDetails == For a detailed and technical explanation of some of the pieces that make Ubuntu One click [[ UbuntuOne/TechnicalDetails | here]].<<BR>> <<BR>> “Ubunet” was the original codename for the online services initiative (the Canonical department itself is called “Online Services”), and is the name of the Launchpad project encompassing the backend components (there is also a “[[https://launchpad.net/~ubuntuone-control-tower|control tower]]” group which is used when landing branches). |
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| `grep -n -A 30 -B 10 ERROR syncdaemon.log |pastebinit` | A detailed description of all the options of '''u1sdtool''' is available [[/u1sdtool|here]]. |
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| will hunt the syncdaemon.log file for an ERROR and will print the preceeding 10 lines and following 30 lines to the pastebin. | == Contribute == There are many ways you can contribute to the Ubuntu One project. Triaging bugs, uploading patches, answering questions on Launchpad are just a few of things you can do to help make Ubuntu One great. |
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| Bugs can be reported on [[https://bugs.launchpad.net/ubuntuone-client|Launchpad]] -------------------------------------- |
If you are interested in Triaging Bugs see our [[ UbuntuOne/Contribute | Bug Workflow.]] Interested in fixing bugs? our info on [[UbuntuOne/Contribute | Ubuntu One Packaging]] and [[UbuntuOne/Contribute | Code and Licensing]] might be of interest to you. |
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| = Technical details = * ''Details as viewed by an outsider. Blame sladen for E&OE and for the insistence on using cute names.'' As of 2009-06-08, the available services are: * '''Storage''': remote storage '''Note:''' Because the "Ubuntu One" branding is non-specific and because most of the components do ''not'' have succinct official names, we'll use shorter (unique) names to succinctly identify each of the components and layers. You can find a [[#Name mappings|table mapping these simple names]] to download packages and URLs at the bottom. (See the "[[#storagefsd]]" section for just how long-winded and suboptimal these actual names can get). "Ubunet" was the original codename for the online services initiative (the Canonical department itself is called "Online Services"), and is the name of the Launchpad project encompassing the backend components (there is also a "[[https://launchpad.net/~ubuntuone-control-tower|control tower]]" group which is used when landing branches). == Code and licensing == || '''Location''' || '''Licence''' || '''Contributing''' || '''Forking''' || '''Hidden re-use''' || || Desktop || GPLv3 || [[http://www.canonical.com/contributors|Contributor agreement]] || Yes || Yes || || Both || AGPLv3 || Contributor agreement || Yes || No || || Server || Proprietary || Canonical employees || No || No || For contributions to be accepted back and integrated into the tree, copyright on the changes must be assigned to Canonical. == Packaging == Packages should be versioned in the following way. Here, '''$VERSION''' refers to the version specified in configure.ac or setup.py, '''$TESTVERSION''' is the version under test that will be the next release. '''rN''' refers to the bzr revision number of the source being packaged, if not packaged from a release, and '''$BUILDID''' is the build string (typically of the form 0ubuntu1 for packages in Ubuntu, for build strings for PPA builds, see https://help.launchpad.net/Packaging/PPA ). '''$SERIES''' refers to the Ubuntu series for which the snapshot build is being created. * Released tarball versions: $VERSION-$BUILDID * Snapshot from bzr (nightlies): $TESTVERSION-$BUILDID~rN~$SERIES * Rebuild of bzr nightlies (sometimes needed): $TESTVERSION-$BUILDID~rN+N~$SERIES == "Storage" == This provides 2GB-10GB of remotely accessible disk space stored on Amazon S3. Rather than using an existing protocol (eg. FTP, SFTP, NFS, Webdav) access to this remote disk space is via an invented-here communication protocol called "u1storage". The system is intended to be for ''mirroring'' of content between computers, opportunistically synchronizing those mirrors when the user is online. There is a delay because a file must be completely uploaded before the changes can start to be shared. The heavy duty backend storage is ultimately out-sourced to [[http://aws.amazon.com/s3/|Amazon S3]] (Amazon Simple Storage Service). At a high-level, ''Storage'' has been compared to [[http://www.getdropbox.com/install?os=lnx|Dropbox]]. In June 2009, Mandriva have produced something similar called [[http://www2.mandriva.com/mdvbackup/|mdvbackup]], (branded as "Mandriva Click'n'Backup"). During early development, the codename for this facility was "Hammertime". === General concepts === * There is a backing database (currently on S3) which stores '''file objects''', '''directory objects''', and the '''BLOB objects''' (files) themselves. * On the user's computer, a '''Share''' is a directory that is actively being mirrored. * When a file is modifid, the complete new version is uploaded and saved in a BLOB. The '''file object''' is updated to point at the new BLOB (directories are not themselves changed for a simple overwrite operation). * A '''Subtree''' is a particular directory object, representing itself and all of its descendants. * A Subtree can be shared with other users. This is called a '''View'''. * The View given to another user can be either '''read-only''', or '''read-write'''. * On connection, or reconnection, the '''u1sync-agent''' is responsible for spidering the full directory tree and identifying any changes on its own. * While connected, the u1sync-agent will receive '''unsolicited notifications''' of changed objects. Notifications are an optimisation. They allow for lower latency in synchronisation and they avoid unnecessary polling. * '''u1sync''' is an example of a simple one-shot client that ignores unsolicited notifications. ==== Authentication ==== A long-term token is used for communication between the desktop and server side infrastructures. This token is stored in the `gnome-keyring`. Actual login is done entirely within a web-browser, so that any password/user ID is kept within Firefox and not exported. There are no username/passwords stored by u1sync-agent. u1sync-agent calls out via DBus to `com.ubuntuone.Authentication`. This is currently answered by `gnome-u1sync-applet`. The applet queries the GNOME keyring, and if the token does not exist, it starts the OAuth/OpenID web-login process and has the user enter their credentials that way. The token is saved and also returned to the u1sync-agent. At the same time, there is some ACL fiddling to allow any (future) other UbuntuOne service programs to also access the token(s). ''Fixme: needs more and it still isn't clear in my head and so is unlikely to be accurate''. === updown === This is a backend librarian service. It listens for connections via HTTP and accepts the upload, or returns the download requested. It does not have a user-visible interface. It does not use the "u1storage" protocol for access, talking instead to the backend database and is therefore effectively a raw HTTP<->S3 gateway. There is one implementation, which is proprietary. Little is known, but an instance of it runs on an EC2 server at `updown.ubuntu.com`. ==== webstorage ==== Also known as "web ui". This is a pretty HTTP/web-browser interface to view directory listings and files held in the user's storage service (and other Shares which they have access to). It is universal and cross-platform and allows viewing of files, plus uploading and downloading. The user's own files are displayed under "My Files" and incoming Shares from other users show up under "Shared With Me". An advantage is that it allows direct "cherry picking" of individual files, without waiting for a (potentially lengthy) synchronisation process to complete. Going via the browser appears to be "closest to bare metal" interface. There is one implementation, which is proprietary. Little is known, but an instance of it runs at https://www.ubuntuone.com/files/ (subscribers only). === u1storage === This protocol is built on top of Google [[http://code.google.com/apis/protocolbuffers/docs/overview.html|Protocol Buffers]] (a sort of fast binary XMLish schema language). This abstraction is to allow extension of the `u1storage` protocol with breaking compatibility. The intention of the protocol is to enabling synchronisation by mirroring of content. The protocol itself uses SHA-1 hashes as identifiers for directory objects and their contents (files). Requests are always initiated from the client end. The first versions does not support any kind of delta-optimisation and each object (file) must be sent in its entirety. Currently there is only one implementation, it written in Python and called `python-u1storage` (AGPLv3+copyright assignment required). The `.proto` descriptions (AGPLv3+assignment) can be used as starting points for other language implementations. ==== storagefsd ==== This is the fuzzy term for a monolithic(?) daemon running on the server `fs-1.ubuntuone.com` (174.129.241.144, currently an Amazon EC2 virtual machine instance). It accepts incoming SSL/TLS wrapped `u1storage` connections on port 443. Note that although port 443 (HTTPS) is used to allow passage through firewalls, the protocol has nothing to do with HTTP. Storagefsd sends a client connected via the u1storage protocol unsolicited updates of any hash reference that have been updated, so that the other end can re-download the changed objects. Currently there is one implementation, which is proprietary. This links to `python-u1storage`. That implemetnation is started by `/etc/init.d/ubuntuoneapiserver` which probably executes something like `/usr/bin/env python .../canonical/ubuntuone/storage/server/server.py`. It seems to save the partially uploaded files to a temporary directory; then presumably indexes/moves them off to Amazon S3 where the real storage is. ==== u1sync-agent ==== This is a per-user daemon run on each desktop computer and has no user interface. It runs in the background and exposes a DBus API interface. The agent does the actual work of deciding what to sychronise in which direction and handles doing so. Automatic resumption and partial uploading/downloading is supported, these files will be visible as `filename.partial` until the transfer has completed, when they are required to the proper filename. By default, one fold called `~/Ubuntu One/` is automatically created and configured for mirroring. Changes to this fold (and any others added) are watched using inotifiy. Synchronisation meta-data about which directories are being mirrored and what their is stored in `~/.cache/ubuntuone`. When remote content has changed, the agent acts on the incoming unsolicated notification sent by storagefs and starts downloading. Authenication is via OAuth. There is one implementation, written in Python (GPLv3), this may also be referred to as ''chicharra''. It is started by `/usr/share/dbus-1/services/com.ubuntuone.SyncDaemon.service` and exposes its DBus interface under `com.ubuntuone.SyncDaemon`. Logs files are kept in `~/.cache/ubuntuone/log/syncdaemon.log`. ===== gnome-u1sync-applet ===== Tray icon to control the behaviour of the a running `u1sync-agent` instance, by communicating over the DBus interface. Provides a constant status update on "what's happening". There is one implementation, which is written in Python (GPL+copyright assignment hassle status unknown). ===== u1sync-tool ===== Command line utility to control the behaviour of a running `u1sync-agent` instance. The tool does not perform any actions directly, but sends messages to the running agent. There is one implementation, which is written in Python (GPLv3). ===== libnautilus-u1sync ===== An extension (plugin) for the default GNOME file-browser called Nautilus to adds a status icon/button. This can send connection and disconnection requests to a running `u1sync-agent` instance. Additional directories (Shares) can be nominated for sharing using a new right-click context menu. There are two implementations. One currently being shipped, written in Python (GPLv3), and one written in C (GPLv3) under development as of 2009-06-08. ==== u1sync ==== This is a command line and test utility tool more akin to `bzr branch/push` or `git clone/push` (version control systems). Synchronisation metadata is stored in a hidden directory at the root folder of each share named `$dir/.ubuntuone-sync`. Note: '''It is ''incompatible'' with the rest of the u1sync-agent infrastructure.''' Apparently, this utility has concepts borrowed from Amazon's [[http://s3.amazonaws.com/ServEdge_pub/s3sync/README.txt|s3sync]] tool. There is one implementation, which is written in Python (GPLv3). ==== fuse-u1storage ==== Apparently there was a FUSE (Filesystem in User Space) implementation, but it was "a disaster", so probably got canned. No details on whether this worked via mirroring, or simply exposing/mounting the remote filesystem locally. There are zero current implementations. == Name mappings == || '''This document''' || '''Suite''' || '''Canonical name''' || '''Bugs''' || '''Source''' || || updown || 1|| updown || [[https://bugs.launchpad.net/ubunet/+bugs|ubunet]] || Python, n/a || || webstorage || 1|| web ui || [[https://bugs.launchpad.net/ubunet/+bugs|ubunet]] || ??, n/a || || storagefsd || 2,3 || ubuntuoneapiserver || [[https://bugs.launchpad.net/ubunet/+bugs|ubunet]] || Python, n/a || || u1storage || 2,3 || ubuntuone-storage-protocol || [[https://bugs.launchpad.net/ubuntuone-storage-protocol/+bugs|ubuntone-storage-protocol]] || Python, AGPLv3 [[http://bazaar.launchpad.net/~ubuntuone-control-tower/ubuntuone-storage-protocol/trunk/files|u-s-p/trunk]] || || u1sync-agent || 2 || ubuntuone-syncdaemon || [[https://bugs.launchpad.net/ubuntuone-client/+bugs|ubuntone-client]] || Python, GPLv3 [[http://bazaar.launchpad.net/~ubuntuone-control-tower/ubuntuone-client/trunk/files|u-c/trunk]] || || u1sync-tool || 2 || u1sdtool || [[https://bugs.launchpad.net/ubuntuone-client/+bugs|ubuntone-client]] || Python, GPLv3 [[http://bazaar.launchpad.net/~ubuntuone-control-tower/ubuntuone-client/trunk/files|u-c/trunk]] || || gnome-u1sync-applet || 2 || ubuntuone-client-applet || [[https://bugs.launchpad.net/ubuntuone-client/+bugs|ubuntone-client]] || Python, GPLv3 [[http://bazaar.launchpad.net/~ubuntuone-control-tower/ubuntuone-client/trunk/files|u-c/trunk]] || || libnautilus-u1sync || 2 || ubuntuone-nautilus || [[https://bugs.launchpad.net/ubuntuone-client/+bugs|ubuntone-client]] || Python/C, GPLv3 [[http://bazaar.launchpad.net/~ubuntuone-control-tower/ubuntuone-client/trunk/files|u-c/trunk]] || || u1sync || 3 || u1sync || [[https://bugs.launchpad.net/ubuntuone-client/+bugs|ubuntone-client]] || Python, GPLv3 [[http://bazaar.launchpad.net/~ubuntuone-control-tower/ubuntuone-client/trunk/files|u-c/trunk]] || || fuse-u1storage || ? || ?? || ?? || ??, n/a || * ~-Components denoted '(N)' and having the same number are each part of the same suite.-~ = Vapourware = Anything below here is scraped together from the [[https://blueprints.launchpad.net/ubuntu/+spec/desktop-karmic-integrating-with-ubuntu-one|desktop-karmic-integrating-with-ubuntu-one]] spec, the [[http://irclogs.ubuntu.com/|irclogs]], from bug reports and blogs and [[http://identi.ca/statik|identi.ca/statik]]+[[http://identi.ca/group/ubuntuone|group/ubuntuone]]+[[http://identi.ca/tag/ubuntuone|tags/ubuntuone]]. Take it all with a pinch of salt: * Screen-sharing ("VNC/vino based"?) * Tomboy note sharing (upstream's [[http://live.gnome.org/Snowy|Snowy]] API + OAuth) * "graphite", no clue * Evolution data server (e-d-s) talking to local [[http://couchdb.apache.org/docs/overview.html|CouchDB]] instance. |
Interesting projects using Ubuntu One and related technologies can be found [[UbuntuOne/ThirdPartyProjects|here]]. |
'Ubuntu One service will be discontinued on June 2014. If you have files on Ubuntu one you should save them on your computer before this date to avoid losing data.'
Introduction
Ubuntu One is a suite of online services from Canonical. The service enables users to store and sync files online and between computers and share files and folders with others using file synchronization. Unlike the traditional storage application and service, what sets Ubuntu One apart is additional features like the integration with other services. Ubuntu One offers integration with Evolution for syncing contacts and with Tomboy for notes due to the access to the local CouchDB instance. Further possibilities include the capability of editing the contacts, as well as the Tomboy notes, online via the Ubuntu One Web interface.
News&Information
There are many ways to keep learn about what Ubuntu one is up to and stay in touch:
FAQs
SupportOptions
Ubuntu One’s support options can be found at the Ubuntu One web site.
Tutorials
We have prepared some tutorials on a variety of topics to help Ubuntu One users up and running.
TechnicalDetails
For a detailed and technical explanation of some of the pieces that make Ubuntu One click here.
“Ubunet” was the original codename for the online services initiative (the Canonical department itself is called “Online Services”), and is the name of the Launchpad project encompassing the backend components (there is also a “control tower” group which is used when landing branches).
A detailed description of all the options of u1sdtool is available here.
Contribute
There are many ways you can contribute to the Ubuntu One project. Triaging bugs, uploading patches, answering questions on Launchpad are just a few of things you can do to help make Ubuntu One great.
If you are interested in Triaging Bugs see our Bug Workflow. Interested in fixing bugs? our info on Ubuntu One Packaging and Code and Licensing might be of interest to you.
Interesting projects using Ubuntu One and related technologies can be found here.
UbuntuOne (last edited 2014-04-19 07:01:37 by bacc97c1)