We need to pre-create configuration folders and set write permissions
because https://github.com/ipfs/go-ipfs/pull/5048
License: MIT
Signed-off-by: Hector Sanjuan <hector@protocol.ai>
`allocations` will be a comma-separated list of peer IDs on which we
want to pin. Peers in allocations are prioritized over automatically-determined
ones, but replication factors would stil be respected.
Squashed commit of the following:
commit 38cf569c6aed77c46ee4e0f8baa4d1a9daf8f03e
Merge: d125f69 aaada42
Author: Hector Sanjuan <hsanjuan@users.noreply.github.com>
Date: Wed Feb 20 11:02:00 2019 +0000
Merge pull request #634 from ipfs/issue_450
Support PinPath, UnpinPath (resolve before pinning)
commit aaada42054e1f1c7b2abb1270859d0de41a0e5d8
Author: Kishan Mohanbhai Sagathiya <kishansagathiya@gmail.com>
Date: Tue Feb 19 22:16:25 2019 +0530
formatResponse accepts api.Pin and not api.PinSerial
commit b5da4bea045865814cc422da71827b44ddd44b90
Merge: ba59036 cc8dd7e
Author: Kishan Mohanbhai Sagathiya <kishansagathiya@gmail.com>
Date: Tue Feb 19 21:36:46 2019 +0530
Merge branch 'master' into issue_450
commit ba5903649c1df1dba20f4d6f7e3573d6fe24921f
Merge: f002914 d59880c
Author: Kishan Mohanbhai Sagathiya <kishansagathiya@gmail.com>
Date: Mon Feb 18 08:41:11 2019 +0530
Merge branch 'issue_450' of github.com:ipfs/ipfs-cluster into issue_450
commit f00291494c0c02621c2296cbb7ac71e4c23aa9ec
Author: Kishan Mohanbhai Sagathiya <kishansagathiya@gmail.com>
Date: Mon Feb 18 08:31:39 2019 +0530
PinPath: more improvements
Added tracing for new methods
commit d59880c338eaa8214fe06b4f930a540793d78407
Merge: 0ca4c7c b4f0eb3
Author: Hector Sanjuan <hsanjuan@users.noreply.github.com>
Date: Wed Feb 13 15:22:49 2019 +0000
Merge branch 'master' into issue_450
commit 0ca4c7c3b0670ed9c8279f8274d36e3485c10030
Merge: d35017a ecef9ea
Author: Kishan Mohanbhai Sagathiya <kishansagathiya@gmail.com>
Date: Tue Feb 12 13:10:13 2019 +0530
Merge branch 'master' into issue_450
commit d35017a8de91ca9fc9a9a047c48c75134cee9f98
Author: Kishan Mohanbhai Sagathiya <kishansagathiya@gmail.com>
Date: Tue Feb 12 13:07:25 2019 +0530
PinPath: more improvements
- Worth having `PinOptions` as a separate field in the struct and
constructing the query in the test with ToQuery()
- sharness: "intialization" line can be placed outside the tests at
the top
commit 68e3b90417ffbad89d41a70ac81d85f9037f8848
Author: Kishan Mohanbhai Sagathiya <kishansagathiya@gmail.com>
Date: Sun Feb 10 21:43:50 2019 +0530
Using if-continue pattern instead of if-else
License: MIT
Signed-off-by: Kishan Mohanbhai Sagathiya <kishansagathiya@gmail.com>
commit 3c29799f3b85be328b27508332ab92049d8b82f3
Merge: 956790b 4324889
Author: Kishan Mohanbhai Sagathiya <kishansagathiya@gmail.com>
Date: Thu Feb 7 10:25:52 2019 +0530
Merge branch 'master' into issue_450
License: MIT
Signed-off-by: Kishan Mohanbhai Sagathiya <kishansagathiya@gmail.com>
commit 956790b381db9858e4194f983e898b07dc51ba66
Author: Kishan Mohanbhai Sagathiya <kishansagathiya@gmail.com>
Date: Wed Feb 6 21:11:20 2019 +0530
Removing resolved path
License: MIT
Signed-off-by: Kishan Mohanbhai Sagathiya <kishansagathiya@gmail.com>
commit 7191cc46cedfbec116a9746937e28881b50ca044
Author: Kishan Mohanbhai Sagathiya <kishansagathiya@gmail.com>
Date: Wed Feb 6 16:45:07 2019 +0530
Fix go vet
License: MIT
Signed-off-by: Kishan Mohanbhai Sagathiya <kishansagathiya@gmail.com>
commit f8b3d5b63b1b7569e2a3e0d82894fd4491c246c4
Author: Kishan Mohanbhai Sagathiya <kishansagathiya@gmail.com>
Date: Wed Feb 6 16:07:03 2019 +0530
Fixed linting error
License: MIT
Signed-off-by: Kishan Mohanbhai Sagathiya <kishansagathiya@gmail.com>
commit 23c57eb467755a1f21387a1615a7f34e97348053
Author: Kishan Mohanbhai Sagathiya <kishansagathiya@gmail.com>
Date: Wed Feb 6 09:20:41 2019 +0530
Fixed tests
License: MIT
Signed-off-by: Kishan Mohanbhai Sagathiya <kishansagathiya@gmail.com>
commit 0caedd94aefeb3b6649dedc214cb4b849ace2ea4
Merge: 17e555e 5a7ee1d
Author: Kishan Mohanbhai Sagathiya <kishansagathiya@gmail.com>
Date: Wed Feb 6 00:07:10 2019 +0530
Merge branch 'master' into issue_450
License: MIT
Signed-off-by: Kishan Mohanbhai Sagathiya <kishansagathiya@gmail.com>
commit 17e555e4a7c574413df90aac70c5cc29cab98f54
Author: Hector Sanjuan <code@hector.link>
Date: Tue Feb 5 16:58:50 2019 +0000
PinPath: address some feedback + improvements
* Changed client's Pin() API and PinPath to be consistent
* Added helper methods to turn PinPath to query and back
* Make code and tests build
* Use TestCidResolved everywhere
* Fix cluster.PinPath arguments
* Fix formatting of responses with --no-status
* Make tests readable and call Fatal when needed
* Use a pathTestCases variable
commit f0e7369c47c5ddadc8ed45df5fd2d4d9b2d42b38
Author: Kishan Mohanbhai Sagathiya <kishansagathiya@gmail.com>
Date: Tue Feb 5 18:34:26 2019 +0530
Support PinPath, UnpinPath(resolve before pinning)
Addressed review comments as in
https://github.com/ipfs/ipfs-cluster/pull/634#pullrequestreview-198751932
License: MIT
Signed-off-by: Kishan Mohanbhai Sagathiya <kishansagathiya@gmail.com>
commit a8b4f181d2d7afed32ee41331dfaab19fd66a173
Author: Kishan Mohanbhai Sagathiya <kishansagathiya@gmail.com>
Date: Tue Jan 29 22:41:27 2019 +0530
Fixing tests
License: MIT
Signed-off-by: Kishan Mohanbhai Sagathiya <kishansagathiya@gmail.com>
commit e39b95ca19e4d75506f4f492678245ef13936a44
Author: Kishan Mohanbhai Sagathiya <kishansagathiya@gmail.com>
Date: Tue Jan 29 14:52:53 2019 +0530
Support PinPath, UnpinPath(resolve before pinning)
- PinPath and UnpinPath should return api.Pin
- PinPath should accept pin options
- Removing duplicate logic for Resolve from cluster
- And many other review comments https://github.com/ipfs/ipfs-cluster/pull/634#pullrequestreview-195509504
License: MIT
Signed-off-by: Kishan Mohanbhai Sagathiya <kishansagathiya@gmail.com>
commit d146075126320896665ba58d337a13789f68ea86
Author: Kishan Mohanbhai Sagathiya <kishansagathiya@gmail.com>
Date: Wed Jan 23 17:08:41 2019 +0530
Support PinPath, UnpinPath(resolve before pinning)
PinPath(in both rest and rpc) should return a serializable struct in the
form `{"\":"Q...cid..string..."}` (as used in "github.com/ipfs/go-cid"
to marshal and unmarshal)
License: MIT
Signed-off-by: Kishan Mohanbhai Sagathiya <kishansagathiya@gmail.com>
commit 1f4869568a8adb450275257154ea3a26d03a30f3
Merge: 7acfd28 a244af9
Author: Kishan Mohanbhai Sagathiya <kishansagathiya@gmail.com>
Date: Wed Jan 23 07:18:56 2019 +0530
Merge branch 'master' into issue_450
License: MIT
Signed-off-by: Kishan Mohanbhai Sagathiya <kishansagathiya@gmail.com>
commit 7acfd282732ddf2282a67d4f9d0170a494eb3ed4
Author: Kishan Mohanbhai Sagathiya <kishansagathiya@gmail.com>
Date: Tue Jan 22 18:14:32 2019 +0530
Support PinPath, UnpinPath(resolve before pinning)
- RPC must always use serializable structs
- In command, just use pin with path as cid is also a valid path
- Addressing many other small review comments as in
https://github.com/ipfs/ipfs-cluster/pull/634#pullrequestreview-192122534
License: MIT
Signed-off-by: Kishan Mohanbhai Sagathiya <kishansagathiya@gmail.com>
commit 36905041e1e3f0b204942030aab3ab7b5b9e4d62
Author: Kishan Mohanbhai Sagathiya <kishansagathiya@gmail.com>
Date: Wed Jan 16 09:36:42 2019 +0530
Support PinPath, UnpinPath(resolve before pinning)
Extra logic for path checking should go into resolve so that it can be
properly reused
Added sharness tests
License: MIT
Signed-off-by: Kishan Mohanbhai Sagathiya <kishansagathiya@gmail.com>
commit 9116bda3534e77bb391d873051bb520a1b01a326
Author: Kishan Mohanbhai Sagathiya <kishansagathiya@gmail.com>
Date: Wed Jan 16 08:08:07 2019 +0530
Support PinPath, UnpinPath(resolve before pinning)
error strings should not be capitalized
Fixes#450
License: MIT
Signed-off-by: Kishan Mohanbhai Sagathiya <kishansagathiya@gmail.com>
commit ca7e61861374f456300a85ddc0374e594f74f963
Author: Kishan Mohanbhai Sagathiya <kishansagathiya@gmail.com>
Date: Tue Jan 15 23:40:25 2019 +0530
Support PinPath, UnpinPath(resolve before pinning)
Tests
Fixes#450
License: MIT
Signed-off-by: Kishan Mohanbhai Sagathiya <kishansagathiya@gmail.com>
commit 522fbcd899f01c01680375561a32a87464157c0a
Merge: f1a56ab f7bc468
Author: Kishan Mohanbhai Sagathiya <kishansagathiya@gmail.com>
Date: Tue Jan 15 10:40:54 2019 +0530
Merge branch 'master' into issue_450
License: MIT
Signed-off-by: Kishan Mohanbhai Sagathiya <kishansagathiya@gmail.com>
commit f1a56ab925fb74c0c44273a4524afa4843cf757f
Author: Kishan Mohanbhai Sagathiya <kishansagathiya@gmail.com>
Date: Mon Jan 14 20:58:17 2019 +0530
Support PinPath, UnpinPath(resolve before pinning)
- IPFS Connector should act as a pure IPFS client, any extra logic
should go to cluster.go
- Use cid.Undef, instead of cid.Cid{}
Fixes#450
License: MIT
Signed-off-by: Kishan Mohanbhai Sagathiya <kishansagathiya@gmail.com>
commit c83b91054f6774f1f9d4930cfc3f1fa28236f57c
Author: Kishan Mohanbhai Sagathiya <kishansagathiya@gmail.com>
Date: Thu Jan 10 08:57:17 2019 +0530
Support PinPath, UnpinPath(resolve before pinning)
- Separate handlers, methods and rpc apis for PinPath and UnpinPath from
Pin and Unpin
- Support ipld paths as well
Fixes#450
License: MIT
Signed-off-by: Kishan Mohanbhai Sagathiya <kishansagathiya@gmail.com>
commit 719dff88129366ce3ccb5e04cb6f8082a0915c5c
Merge: 91ceb47 21170c4
Author: Kishan Mohanbhai Sagathiya <kishansagathiya@gmail.com>
Date: Wed Jan 9 19:38:35 2019 +0530
Merge branch 'issue_450_old' into HEAD
License: MIT
Signed-off-by: Kishan Mohanbhai Sagathiya <kishansagathiya@gmail.com>
commit 91ceb4796259ca7ef2974ec43e6a278a12796b13
Author: Kishan Mohanbhai Sagathiya <kishansagathiya@gmail.com>
Date: Wed Jan 9 19:36:41 2019 +0530
Revert "WIP: Figure out why test does not impleme"
This reverts commit 28a3a3f25dce6f296c8cbef86221644c099a7e75.
License: MIT
Signed-off-by: Kishan Mohanbhai Sagathiya <kishansagathiya@gmail.com>
commit 28a3a3f25dce6f296c8cbef86221644c099a7e75
Author: cd10012 <ced361@nyu.edu>
Date: Tue Jul 24 23:23:10 2018 -0400
WIP: Figure out why test does not implement IPFSConnector interface...
License: MIT
Signed-off-by: cd10012 <ced361@nyu.edu>
commit 21170c48e77e69583db64544b08120a9baf40d8d
Author: Kishan Mohanbhai Sagathiya <kishansagathiya@gmail.com>
Date: Tue Jan 8 10:37:59 2019 +0530
Support PinPath, UnpinPath (resolve before pinning)
This commit adds API support for pinning using path
`POST /pins/<ipfs or ipns path>` and `DELETE /pins/<ipfs or ipns path>`
will resolve the path into a cid and perform perform pinning or
unpinning
Fixes#450
License: MIT
Signed-off-by: Kishan Mohanbhai Sagathiya <kishansagathiya@gmail.com>
Co-authored-by: Hector Sanjuan <hector@protocol.ai>
License: MIT
Signed-off-by: Hector Sanjuan <hector@protocol.ai>
Fix the pid extraction in test.
Co-Authored-By: hsanjuan <hsanjuan@users.noreply.github.com>
License: MIT
Signed-off-by: Hector Sanjuan <code@hector.link>
Move ctl-health sharness tests to apprpriate file
Since the API is using the RPC mock to request metrics and it always
returns a mocked test metric we might just do c.Metrics("somemetricstype")
and check that there is no error. Here we just want to check that the
client is hitting an API endpoint (and understands the response).
Fixes#587
License: MIT
Signed-off-by: Kishan Mohanbhai Sagathiya <kishansagathiya@gmail.com>
Prompt on init and skip the prompt in init -f (and not have a -y flag)
This would be in line with other state subcommands which ask by default
and -f skips the prompt.
License: MIT
Signed-off-by: Kishan Mohanbhai Sagathiya <kishansagathiya@gmail.com>
validation of url params in restapi fileadd handler
use --only-hashes in sharness to simplify cid parse
License: MIT
Signed-off-by: Wyatt Daviau <wdaviau@cs.stanford.edu>
api client test
api test
one sharness test
refactoring of testingData for access from other packages
always wrap files added by cluster
remove unused flag 'progress'
changes to support hidden flag
License: MIT
Signed-off-by: Wyatt Daviau <wdaviau@cs.stanford.edu>
This commit promotes the Consensus component (and Raft) to become a fully
independent thing like other components, passed to NewCluster during
initialization. Cluster (main component) no longer creates the consensus
layer internally. This has triggered a number of breaking changes
that I will explain below.
Motivation: Future work will require the possibility of running Cluster
with a consensus layer that is not Raft. The "consensus" layer is in charge
of maintaining two things:
* The current cluster peerset, as required by the implementation
* The current cluster pinset (shared state)
While the pinset maintenance has always been in the consensus layer, the
peerset maintenance was handled by the main component (starting by the "peers"
key in the configuration) AND the Raft component (internally)
and this generated lots of confusion: if the user edited the peers in the
configuration they would be greeted with an error.
The bootstrap process (adding a peer to an existing cluster) and configuration
key also complicated many things, since the main component did it, but only
when the consensus was initialized and in single peer mode.
In all this we also mixed the peerstore (list of peer addresses in the libp2p
host) with the peerset, when they need not to be linked.
By initializing the consensus layer before calling NewCluster, all the
difficulties in maintaining the current implementation in the same way
have come to light. Thus, the following changes have been introduced:
* Remove "peers" and "bootstrap" keys from the configuration: we no longer
edit or save the configuration files. This was a very bad practice, requiring
write permissions by the process to the file containing the private key and
additionally made things like Puppet deployments of cluster difficult as
configuration would mutate from its initial version. Needless to say all the
maintenance associated to making sure peers and bootstrap had correct values
when peers are bootstrapped or removed. A loud and detailed error message has
been added when staring cluster with an old config, along with instructions on
how to move forward.
* Introduce a PeerstoreFile ("peerstore") which stores peer addresses: in
ipfs, the peerstore is not persisted because it can be re-built from the
network bootstrappers and the DHT. Cluster should probably also allow
discoverability of peers addresses (when not bootstrapping, as in that case
we have it), but in the meantime, we will read and persist the peerstore
addresses for cluster peers in this file, different from the configuration.
Note that dns multiaddresses are now fully supported and no IPs are saved
when we have DNS multiaddresses for a peer.
* The former "peer_manager" code is now a pstoremgr module, providing utilities
to parse, add, list and generally maintain the libp2p host peerstore, including
operations on the PeerstoreFile. This "pstoremgr" can now also be extended to
perform address autodiscovery and other things indepedently from Cluster.
* Create and initialize Raft outside of the main Cluster component: since we
can now launch Raft independently from Cluster, we have more degrees of
freedom. A new "staging" option when creating the object allows a raft peer to
be launched in Staging mode, waiting to be added to a running consensus, and
thus, not electing itself as leader or doing anything like we were doing
before. This additionally allows us to track when the peer has become a
Voter, which only happens when it's caught up with the state, something that
was wonky previously.
* The raft configuration now includes an InitPeerset key, which allows to
provide a peerset for new peers and which is ignored when staging==true. The
whole Raft initialization code is way cleaner and stronger now.
* Cluster peer bootsrapping is now an ipfs-cluster-service feature. The
--bootstrap flag works as before (additionally allowing comma-separated-list
of entries). What bootstrap does, is to initialize Raft with staging == true,
and then call Join in the main cluster component. Only when the Raft peer
transitions to Voter, consensus becomes ready, and cluster becomes Ready.
This is cleaner, works better and is less complex than before (supporting
both flags and config values). We also backup and clean the state whenever
we are boostrapping, automatically
* ipfs-cluster-service no longer runs the daemon. Starting cluster needs
now "ipfs-cluster-service daemon". The daemon specific flags (bootstrap,
alloc) are now flags for the daemon subcommand. Here we mimic ipfs ("ipfs"
does not start the daemon but print help) and pave the path for merging both
service and ctl in the future.
While this brings some breaking changes, it significantly reduces the
complexity of the configuration, the code and most importantly, the
documentation. It should be easier now to explain the user what is the
right way to launch a cluster peer, and more difficult to make mistakes.
As a side effect, the PR also:
* Fixes#381 - peers with dynamic addresses
* Fixes#371 - peers should be Raft configuration option
* Fixes#378 - waitForUpdates may return before state fully synced
* Fixes#235 - config option shadowing (no cfg saves, no need to shadow)
License: MIT
Signed-off-by: Hector Sanjuan <code@hector.link>
address feedback and add WaitForPinnedStatus
address feedback and rework WaitFor
implement StatusFilter
address feedback and rework StatusFilter
License: MIT
Signed-off-by: Adrian Lanzafame <adrianlanzafame92@gmail.com>
Added go tests
Refactored cluster connect graph to new file
Refactored dot file printing to new repo
Fixed code climate issues
Added sharness test
License: MIT
Signed-off-by: Wyatt Daviau <wdaviau@cs.stanford.edu>
Better error messages in test-lib init functions and ipfshttp
Cleanup functions are now called after every test file
License: MIT
Signed-off-by: Wyatt Daviau <wdaviau@cs.stanford.edu>
ipfs-cluster-service now locks before running the daemon and state
upgrade commands. Locking mechanism heavily inspired by ipfs, see
go-ipfs fsrepo. Unlock called on exit to free up repo. one lockfile
per repo. A very simple sharness test checks that two service
invocations cannot occur.
A longstanding sharness/ci logging issue is addressed by exporting
verbose=t into the travis environment. Now output of commands from
within sharness test strings are displayed during travis runs.
License: MIT
Signed-off-by: Wyatt Daviau <wdaviau@cs.stanford.edu>
I've modified the peer identifier to be 'peername'. I've also
modified the TestLoadJSON to check that it is correctly read from
config and set to a default if empty.
Also added 'peername' fields to configurations for various tests.
ipfs-cluster-service now has a migration subcommand that upgrades
persistant state snapshots with an out-of-date format version to the
newest version of raft state. If all cluster members shutdown with
consistent state, upgrade ipfs-cluster, and run the state upgrade command,
the new version of cluster will be compatible with persistent storage.
ipfs-cluster now validates its persistent state upon loading it and exits
with a clear error in the case the state format version is not up to date.
Raft snapshotting is enforced on all shutdowns and the json backup is no
longer run. This commit makes use of recent changes to libp2p-raft
allowing raft states to implement their own marshaling strategies. Now
mapstate handles the logic for its (de)serialization. In the interest of
supporting various potential upgrade formats the state serialization
begins with a varint (right now one byte) describing the version.
Some go tests are modified and a go test is added to cover new ipfs-cluster
raft snapshot reading functions. Sharness tests are added to cover the
state upgrade command.
The following commit reimplements ipfs-cluster configuration under
the following premises:
* Each component is initialized with a configuration object
defined by its module
* Each component decides how the JSON representation of its
configuration looks like
* Each component parses and validates its own configuration
* Each component exposes its own defaults
* Component configurations are make the sections of a
central JSON configuration file (which replaces the current
JSON format)
* Component configurations implement a common interface
(config.ComponentConfig) with a set of common operations
* The central configuration file is managed by a
config.ConfigManager which:
* Registers ComponentConfigs
* Assigns the correspondent sections from the JSON file to each
component and delegates the parsing
* Delegates the JSON generation for each section
* Can be notified when the configuration is updated and must be
saved to disk
The new service.json would then look as follows:
```json
{
"cluster": {
"id": "QmTVW8NoRxC5wBhV7WtAYtRn7itipEESfozWN5KmXUQnk2",
"private_key": "<...>",
"secret": "00224102ae6aaf94f2606abf69a0e278251ecc1d64815b617ff19d6d2841f786",
"peers": [],
"bootstrap": [],
"leave_on_shutdown": false,
"listen_multiaddress": "/ip4/0.0.0.0/tcp/9096",
"state_sync_interval": "1m0s",
"ipfs_sync_interval": "2m10s",
"replication_factor": -1,
"monitor_ping_interval": "15s"
},
"consensus": {
"raft": {
"heartbeat_timeout": "1s",
"election_timeout": "1s",
"commit_timeout": "50ms",
"max_append_entries": 64,
"trailing_logs": 10240,
"snapshot_interval": "2m0s",
"snapshot_threshold": 8192,
"leader_lease_timeout": "500ms"
}
},
"api": {
"restapi": {
"listen_multiaddress": "/ip4/127.0.0.1/tcp/9094",
"read_timeout": "30s",
"read_header_timeout": "5s",
"write_timeout": "1m0s",
"idle_timeout": "2m0s"
}
},
"ipfs_connector": {
"ipfshttp": {
"proxy_listen_multiaddress": "/ip4/127.0.0.1/tcp/9095",
"node_multiaddress": "/ip4/127.0.0.1/tcp/5001",
"connect_swarms_delay": "7s",
"proxy_read_timeout": "10m0s",
"proxy_read_header_timeout": "5s",
"proxy_write_timeout": "10m0s",
"proxy_idle_timeout": "1m0s"
}
},
"monitor": {
"monbasic": {
"check_interval": "15s"
}
},
"informer": {
"disk": {
"metric_ttl": "30s",
"metric_type": "freespace"
},
"numpin": {
"metric_ttl": "10s"
}
}
}
```
This new format aims to be easily extensible per component. As such,
it already surfaces quite a few new options which were hardcoded
before.
Additionally, since Go API have changed, some redundant methods have been
removed and small refactoring has happened to take advantage of the new
way.
License: MIT
Signed-off-by: Hector Sanjuan <hector@protocol.ai>
This:
* Takes CLUSTER_SECRET as the secret whenever it is defined
* Generates the secret by default in other cases
* Only prompts with -s, -custom-secret.
License: MIT
Signed-off-by: Hector Sanjuan <hector@protocol.ai>
Use docker to run ipfs
Improve intialization of daemons
Fix a bunch of tests
Improve run script
Make sure everything is shell-compatible (remove bash syntax)
Fit to run in travis
* Added travis sharness build
* ipfs-cluster-ctl help text width overflow fixed
* Expect success from fixed sharness test
* First travis-sharness PR touch up
Undoes gx rewrite of cluster-ctl dependencies
Undoess linebreaking of usage descriptions
Changes test to check for lines in excess of 120 chars instead of 80
run-sharness script now correctly tracks exit codes and exits with error