* initial WIP integration with Object store
* List WIP
* minio listobject function changes complete
* Code review changes and work in progress for the mock objectstore unit testing cases
* Warning fix redeclaration of err
* Warning fix redeclaration of err
* code review comments & unit testing inprogress
* fix compilation bug
* Fixed code review comments & added GetObject Mock test case
* rearraged the mock test file and gateway storj test file in to the proper directory
* added the missing file
* code clean up
* fix lint error on the mock generated code
* modified per code review comments
* added the PutObject mock test case
* added the GetObjectInfo mock test case
* added listobject mock test case
* fixed package from storj to miniogw
* resolved the gateway-storj.go initialization merge conflict
* Refactor List in Pointer DB
* Fix pointerdb-client example
* Fix issue in Path type related to empty paths
* Test for the PointerDB service with some fixes
* Fixed debug message in example: trancated --> more
* GoDoc comments for unexported methods
* TODO comment to check if Put is overwriting
* Log warning if protobuf timestamp cannot be converted
* TODO comment to make ListPageLimit configurable
* Rename 'segment' package to 'segments' to reflect folder name
* pkg/provider: with pkg/provider merged, make a single heavy client binary and deprecate old services
* add setup to gw binary too
* captplanet: output what addresses everything is listening on
* revert peertls/io_util changes
* define config flag across all commands
* use trimsuffix
* Add files for testing builds in docker
* Make tests check for redis running before trying to start redis-server, which may not exist.
* Clean redis server before any tests use it.
* Add more debugging for travis
* Explicitly requiring redis for travis
* captplanet
I kind of went overboard this weekend.
The major goal of this changeset is to provide an environment
for local development where all of the various services can
be easily run together. Developing on Storj v3 should be as
easy as running a setup command and a run command!
To do this, this changeset introduces a new tool called
captplanet, which combines the powers of the Overlay Cache,
the PointerDB, the PieceStore, Kademlia, the Minio Gateway,
etc.
Running 40 farmers and a heavy client inside the same process
forced a rethinking of the "services" that we had. To
avoid confusion by reusing prior terms, this changeset
introduces two new types: Providers and Responsibilities.
I wanted to avoid as many merge conflicts as possible, so
I left the existing Services and code for now, but if people
like this route we can clean up the duplication.
A Responsibility is a collection of gRPC methods and
corresponding state. The following systems are examples of
Responsibilities:
* Kademlia
* OverlayCache
* PointerDB
* StatDB
* PieceStore
* etc.
A Provider is a collection of Responsibilities that
share an Identity, such as:
* The heavy client
* The farmer
* The gateway
An Identity is a public/private key pair, a node id, etc.
Farmers all need different Identities, so captplanet
needs to support running multiple concurrent Providers
with different Identities.
Each Responsibility and Provider should allow for configuration
of multiple copies on its own so creating Responsibilities and
Providers use a new workflow.
To make a Responsibility, one should create a "config"
struct, such as:
```
type Config struct {
RepairThreshold int `help:"If redundancy falls below this number of
pieces, repair is triggered" default:"30"`
SuccessThreshold int `help:"If redundancy is above this number then
no additional uploads are needed" default:"40"`
}
```
To use "config" structs, this changeset introduces another
new library called 'cfgstruct', which allows for the configuration
of arbitrary structs through flagsets, and thus through cobra and
viper.
cfgstruct relies on Go's "struct tags" feature to document
help information and default values. Config structs can be
configured via cfgstruct.Bind for binding the struct to a flagset.
Because this configuration system makes setup and configuration
easier *in general*, additional commands are provided that allow
for easy standup of separate Providers. Please make sure to
check out:
* cmd/captplanet/farmer/main.go (a new farmer binary)
* cmd/captplanet/hc/main.go (a new heavy client binary)
* cmd/captplanet/gw/main.go (a new minio gateway binary)
Usage:
```
$ go install -v storj.io/storj/cmd/captplanet
$ captplanet setup
$ captplanet run
```
Configuration is placed by default in `~/.storj/capt/`
Other changes:
* introduces new config structs for currently existing
Responsibilities that conform to the new Responsibility
interface. Please see the `pkg/*/config.go` files for
examples.
* integrates the PointerDB API key with other global
configuration via flags, instead of through environment
variables through viper like it's been doing. (ultimately
this should also change to use the PointerDB config
struct but this is an okay shortterm solution).
* changes the Overlay cache to use a URL for database
configuration instead of separate redis and bolt config
settings.
* stubs out some peer identity skeleton code (but not the
meat).
* Fixes the SegmentStore to use the overlay client and
pointerdb clients instead of gRPC client code directly
* Leaves a very clear spot where we need to tie the object to
stream to segment store together. There's sort of a "golden
spike" opportunity to connect all the train tracks together
at the bottom of pkg/miniogw/config.go, labeled with a
bunch of TODOs.
Future stuff:
* I now prefer this design over the original
pkg/process.Service thing I had been pushing before (sorry!)
* The experience of trying to have multiple farmers
configurable concurrently led me to prefer config structs
over global flags (I finally came around) or using viper
directly. I think global flags are okay sometimes but in
general going forward we should try and get all relevant
config into config structs.
* If you all like this direction, I think we can go delete my
old Service interfaces and a bunch of flags and clean up a
bunch of stuff.
* If you don't like this direction, it's no sweat at all, and
despite how much code there is here I'm not very tied to any
of this! Considering a lot of this was written between midnight
and 6 am, it might not be any good!
* bind tests
* Adjust Segment Store to the updated interface
* Move /pkg/storage/segment to /pkg/storage/segments
* Fix overlay client tests
* Revert changes in NewOverlayClient return value
* Rename `rem` to `seg`
* Implement Meta()
* working on put request for nsclient
* working on put request for nsclient
* netstate put
* netstate put
* wip testing client
* wip - testing client
and working through some errors
* wip - testing client
and working through some errors
* put request works
* put request works for client
* get request working
* get request working
* get request working-minor edit
* get request working-minor edit
* list request works
* list request works
* working through delete error
* working through delete error
* fixed exp client, still working through delete error
* fixed exp client, still working through delete error
* delete works; fixed formatting issues
* delete works; fixed formatting issues
* deleted comment
* deleted comment
* resolving merge conflicts
* resolving merge conflict
* fixing merge conflict
* implemented and modified kayloyans paths file
* working on testing
* added test for path_test.go
* fixed string, read through netstate test
* deleted env variables
* initial commit for mocking out grpc client- got it working
* mocked grpc client
* mock put passed test
* 2 tests pass for PUT with mock
* put requests test pass, wip- want mini review
* get tests pass mock
* list test working
* initial commit for list test
* all list req. working, starting on delete tests
* delete tests passed
* cleaned up tests
* resolved merge conflicts
* resolved merge conflicts
* fixed linter errors
* fixed error found in travis
* initial commit for fixes from PR comments
* fixed pr comments and linting
* added error handling for api creds, and rebased
* fixes from dennis comments
* fixed pr with dennis suggestioon
* added copyrights to files
* fixed casing per dennis great comment
* fixed travis complaint on sprintf
* Add dockerfile and yaml for setting up piecestore servers
* Fix dockerfile for @aleitner (#115)
* Fix dockerfile for @aleitner
* Move files for @coyle
* Update yaml
* My linter had some errors so I resolved them
* Make jenkins do the needful
* Make piecestore-farmer look like overlay's build process
* Fix service spec to work in staging
* Make Jenkins push images, but not deploy them, yet.
* Modify entrypoint to fit new verbs
* Update piecestore-farmer entrypoint script to handle new app output
* Updates to config handling
- Add functions to load in configs
- Standardize location and naming of config files
- Configuration over convention style of config file handling for each
service
* update config handling and correclty handle cli flags being set
* generate configs from default if no config is found
- renamed pointerdbDB to pointerdb for clarity in config file
- set sane default for pkg/overlay boltDB file
- set srvPort to default to 8082 to avoid port collision on default
setting
* linter updates
* move boltdb path vars into function
* update tests to handle config environment changes
* --fix exec test mocks
* update tests to use viper instead of flag library
* fix typo
* add redis-server to services in travis for tests
* update examples with new config env function signature
* fix tests
* WIP ObjectStore
* Remove methods for extended attributes
* List returns metadata too
* No real need to prepend "object" in path
* Serialize metadata
* List retuns []ListItem instead of []Path
* lays out SegmentStore functions to implement
* Merge branch 'master' into segment-store
* adds overlay calls to put
* allows SegmentStore Put to upload a file to ecclient, then save pointer to pointerdb
* Merge branch 'master' into segment-store
* removes new overlay client instance in Put
* fixes syntax
* fixes syntax again
* fixes imports
* fixes typo
* removes pointerdb client from segmentStore struct for now
* changes SegmentStore to segmentStore
* changing types in parameters to fit other function calls
* takes RedundancyStrategy out of Put params
* changes NewClient param back to take an interface (not pointer to interface)
* fixes types
* moves pointer into PutRequest in SegmentStore Put
* passes interfact, not pointer to interface to NewSegmentStore
* fixes some types
* Get returns an instance of Meta
* fixes PutRequest fields
* adds remotePieces slice to pointerdb PutRequest
* ecClient Put now takes *proto.Nodes instead of proto.Nodes
* fixes syntax
* changes ec client dial interface to use *proto.Node
* changes other instances of proto.Node to *proto.Node in ecclient pkg
* adds *proto.Node to Get and Delete functions in ecclient pkg
* changes proto.Node to pointer in ec client_test
* changes proto.Node to pointer in ec client_test
* adds ecclient and pointerdb client to the segmentstore constructor
* adds ecclient and pointerDBClient to segmentStore constructor
* port changes
* Task monitor and setup merge from the staging
* Restructure + additional interface
* Add NewOverlayClient
* integrated DHT client interface
* added test for interface
* PR comments addressed
* lint issue
* added generated protobuf
* adding new interface
* added the interface framework
* deleted file
* fixes compilation errors and integrates new dhtcclient interface
* merged netstat latest changes and dht new interface chagnes
* fixed the address's port
* adding comments
* PR comments addressed
* netclient interface dial method added
* rename and integrated transportclient with minio gateway
* rename and code clean up
* made changes based on the Dennis's changes on the kad-client
* Code review comment changes based on kaloyan review comments
* reverted the changes to be similar to master
* removed unused file
* renamed to transportclient
* added the review changes
* store the address of the client
* updates per the code review comments, changes-> added error retry connection attempt logic, added error conditions including nil parameters
* updated the test case to test the bad address passed condition
* updated the code per code review comments
* Bolt backed overlay cache (#94)
* wip
* add separate `Process` tests for bolt and redis-backed overlay
* more testing
* fix gitignore
* fix linter error
* goimports goimports GOIMPORTS GoImPortS!!!!
* fix port madness
* forgot to add
* add `mux` as handler and shorten context timeouts
* gofreakingimports
* fix comments
* refactor test & add logger/monkit registry
* debugging travis
* add comment
* Set redisAddress to empty string for bolt-test
* travis experiment
* refactoring tests
* Merge remote-tracking branch 'upstream/master' into bolt-backed-overlay-cache
* Automatically build, tag and push docker images on merge to master (#103)
* port changes
* build overlay on successful merge to master
* fixes to Makefile
* permissions
* dep ensure
* gopath
* let's try vgo
* remove dep
* maybe alpine is the issue
* tagging go version on build
* stupid vgo
* vgo
* adding tags to push
* quotes
* local linting fixes & stupid travis
* prepend storjlabs to docker tag (#108)
* port changes
* fixing tag name
* Use continue instead of return in table tests (#106)
I did a dumb mistake for some of the table tests, which made some of the
test cases not being executed.
* pkg/kademlia tests and restructuring (#97)
* port changes
* Merge remote-tracking branch 'upstream/master'
* Merge remote-tracking branch 'upstream/master'
* Merge remote-tracking branch 'upstream/master'
* files created
* Merge remote-tracking branch 'upstream/master' into coyle/kad-tests
* wip
* Merge remote-tracking branch 'upstream/master' into coyle/kad-tests
* wip
* remove bkad dependencie from tests
* wip
* wip
* wip
* wip
* wip
* updated coyle/kademlia
* wip
* cleanup
* ports
* overlay upgraded
* linter fixes
* piecestore kademlia newID
* add changes from kad demo
* PR comments addresses
* go func
* force travis build
* fixed merge conflicts
* fixed merge conflicts
* Merge branch 'coyle/kad-tests' of https://github.com/coyle/storj into coyle/kad-tests
* linter issues
* linting issues
* fixed merge conflicts
* linter is stupid
* Coyle/docker fix (#109)
* port changes
* Merge remote-tracking branch 'upstream/master'
* Merge remote-tracking branch 'upstream/master'
* Merge remote-tracking branch 'upstream/master'
* Merge remote-tracking branch 'upstream/master'
* Merge remote-tracking branch 'upstream/master'
* Merge branch 'master' of https://github.com/storj/storj
* fixing tag name
* no idea
* testing
* changes
* testing on travis
* testing
* changes to travis build
* new approach
* Merge branch 'master' into coyle/docker-fix
* hardcode version (#111)
* hardcode version
* adding coveralls / code coverage (#112)
* adding coveralls
* adding code coverage badge
* fixing badges
* verbose
* swap tests and coverage
* extra line
* maybe
* maybe
* moar
* gover maybe
* testing
* cleanup
* protos/netstate: remove stuff we're not using (#100)
* protos/netstate: remove stuff we're not using
* protos/netstate: add metadata field for segmentstore
* fix netstate client test
* pkg/process: start replacing pkg/process with cobra helpers (#98)
* Implement psclient interface (#107)
* Implement psclient interface
* Add string method to pieceID type
* try to fix linter errors
* Whoops missed an error
* More linter errors
* Typo
* Lol double typo
* Get everything working, begin adding tests for psclient rpc
* goimports
* Forgot to change the piecestore cli when changed the piecestore code
* Fix CLI
* remove ID length, added validator to pieceID
* Move grpc ranger to client
Change client PUT api to take a reader rather than return a writer
* GRPCRanger -> PieceRanger; Make PieceRanger a RangeCloser
* Forgot to remove offset
* Added message upon successful store
* Do that thing dennis and kaloyan wanted
* goimports
* Make closeConn a part of the interface for psclient
* Use interface
* Removed uneccessary new lines
* goimport
* Whoops
* Actually we don't want to use the interface in Piece Ranger
* Renamed piecestore in examples to piecestore-client; moved piecestore-cli to examples
* Make comments look nicer
* modified transport client based on the the design discussion
* modified transport client based on the the design discussion
* added the as discussed connection cache interface functionality
* added the as discussed connection cache interface functionality
* transport client changes
* transport client per code review changes
* per the code review comments
* transport client incorporates review comments
* fixes lint warnings
* lint warning fixes....client interface has to be Client
* initial draft of Objectstore
* transport client review changes
* client.go changes
* transport.go changes
* added test case
* added test cases
* streams iface
* comment fix
* object store changes
* comment fix
* initialized the objectstore in gw
* Added PutObject with test support for encryption file
* added object store test cases
* tested & integrated the objectstore with miniogw
* handled the ranger and paths
* indentation change
* Kalyon's code review comments resolution implemented after the 30min code review meeting
* Compilation error fix
* fixes the tavis build warnings
* corrects the ListObject return type to be slice of slice
* corrects the ListObject return type to be slice of slice
* added the serialization using protobuf
* added the unmarshalling of data in getobject()
* Jt's Review comments
* Kaloyan's review comments, moved the unmarshalling logic and other minor code indentation fixes
* more code reivew
* more code reivew
* Changes the expiration time to zeroTime and added error check in putObject function
* Changes the expiration time to zeroTime and added error check in putObject function
* minor warning fix- had to add a comment and fix the wording
* added a TODO comment per kaloyan
* code clean up removed unused variables
* WIP creating admin node service
- WIP changing the process pkg to accept multiple services
- WIP looping over services passed to process
- add netstate/service.go file and abstract it for service processing
* implement goroutine to launch each process
* goroutines working with multiple services
* code review fixes
* more code updates for review
* Add pkg lock and mod files back in
* code review updates
* update process.Main with better concurrent error handling
* Update error handling and pass ctx to StartService
* Update error handling with channel implementation
* Merge in upstream changes
- Simplify error handling channels
* updates
* Updates per reviewable
* fix test
* Setup test exec
* Scaffold test setup
* process main test working
* update admin process test
* Test multiple processes done
* Add error classes for testing, test main logger error
* Updates to tests
* Update how process.Main() handles configs
* Complete merge
* Update Gopkg and add Copyright
* Fix cyclical import issue
- Added .coverprofile to gitignore
- Update admin main.go function call
* remove unnecessary line
* Updates
* DRY up cmd/netstate package
* update service function calls
* updates
* Trying no-ops in examples
* rename netstate to pointerdb
* trying to fix merge
* dep ensure and run tests
* remove flag.Parse
* Update deps
* Skip offending test in pkg/process, to be fixed later
* license code with agplv3
now that we have clabot, license everything by default with agplv3.
since we have CLAs, we can relicense certain parts (such as the
s3 gateway and libstorj) later.
* Merge remote-tracking branch 'origin/master' into agpl
* separated commands and actions from main.go, created delete command
* refactored piecestore-farmer to use cobra CLI
* added piecestore-farmer main.go and long command descriptions
* pkg/process: start replacing pkg/process with cobra helpers
* address review comments
* addressed github comments, rename pstore.DetermineID to GenerateID, remove utils.NewID and use pstore.GenerateID instead
* addressed comments
* pulled proc and got CLI working with process package
* goimports
* stdout formatting
* WIP adding tests for pstoreFarmer CLI, fixed bug in check for preexisting config
* copyright header, change exported variable
* changed error formatting to be consistent
* more tests
* stdout, add (\n)s in zap logs, set home inside SetConfigPath() instead of passing in
* resolved merge conflicts
* goimports and fixed merge error
* removed generateID func to use kademlia.NewID instead, refactored to match kademlia.NewKademlia()
* adds netstate rpc server pagination, mocks pagination in test/util.go
* updates ns client example, combines ns client and server test to netstate_test, adds pagination to bolt client
* better organizes netstate test calls
* wip breaking netstate test into smaller tests
* wip modularizing netstate tests
* adds some test panics
* wip netstate test attempts
* testing bug in netstate TestDeleteAuth
* wip fixes global variable problem, still issues with list
* wip fixes get request params and args
* fixes bug in path when using MakePointers helper fn
* updates mockdb list func, adds test, changes Limit to int
* fixes merge conflicts
* fixes broken tests from merge
* remove unnecessary PointerEntry struct
* removes error when Get returns nil value from boltdb
* breaks boltdb client tests into smaller tests
* renames AssertNoErr test helper to HandleErr
* adds StartingKey and Limit parameters to redis list func, adds beginning of redis tests
* adds helper func for mockdb List function
* if no starting key provided for netstate List, the first value in storage will be used
* adds basic pagination for redis List function, adds tests
* adds list limit to call in overlay/server.go
* streamlines/fixes some nits from review
* removes use of obsolete EncryptedUnencryptedSize
* uses MockKeyValueStore instead of redis instance in redis client test
* changes test to expect nil returned for getting missing key
* remove error from `KeyValueStore#Get`
* fix bolt test
* Merge pull request #1 from bryanchriswhite/nat-pagination
remove error from `KeyValueStore#Get`
* adds Get returning error back to KeyValueStore interface and affected clients
* trying to appease travis: returns errors in Get calls in overlay/cache and cache_test
* handles redis get error when no key found
* port changes
* Task monitor and setup merge from the staging
* Restructure + additional interface
* Add NewOverlayClient
* integrated DHT client interface
* added test for interface
* PR comments addressed
* lint issue
* added generated protobuf
* adding new interface
* added the interface framework
* deleted file
* fixes compilation errors and integrates new dhtcclient interface
* merged netstat latest changes and dht new interface chagnes
* fixed the address's port
* adding comments
* PR comments addressed
* netclient interface dial method added
* rename and integrated transportclient with minio gateway
* rename and code clean up
* made changes based on the Dennis's changes on the kad-client
* Code review comment changes based on kaloyan review comments
* reverted the changes to be similar to master
* removed unused file
* renamed to transportclient
* added the review changes
* store the address of the client
* updates per the code review comments, changes-> added error retry connection attempt logic, added error conditions including nil parameters
* updated the test case to test the bad address passed condition
* updated the code per code review comments
* Bolt backed overlay cache (#94)
* wip
* add separate `Process` tests for bolt and redis-backed overlay
* more testing
* fix gitignore
* fix linter error
* goimports goimports GOIMPORTS GoImPortS!!!!
* fix port madness
* forgot to add
* add `mux` as handler and shorten context timeouts
* gofreakingimports
* fix comments
* refactor test & add logger/monkit registry
* debugging travis
* add comment
* Set redisAddress to empty string for bolt-test
* travis experiment
* refactoring tests
* Merge remote-tracking branch 'upstream/master' into bolt-backed-overlay-cache
* Automatically build, tag and push docker images on merge to master (#103)
* port changes
* build overlay on successful merge to master
* fixes to Makefile
* permissions
* dep ensure
* gopath
* let's try vgo
* remove dep
* maybe alpine is the issue
* tagging go version on build
* stupid vgo
* vgo
* adding tags to push
* quotes
* local linting fixes & stupid travis
* prepend storjlabs to docker tag (#108)
* port changes
* fixing tag name
* Use continue instead of return in table tests (#106)
I did a dumb mistake for some of the table tests, which made some of the
test cases not being executed.
* pkg/kademlia tests and restructuring (#97)
* port changes
* Merge remote-tracking branch 'upstream/master'
* Merge remote-tracking branch 'upstream/master'
* Merge remote-tracking branch 'upstream/master'
* files created
* Merge remote-tracking branch 'upstream/master' into coyle/kad-tests
* wip
* Merge remote-tracking branch 'upstream/master' into coyle/kad-tests
* wip
* remove bkad dependencie from tests
* wip
* wip
* wip
* wip
* wip
* updated coyle/kademlia
* wip
* cleanup
* ports
* overlay upgraded
* linter fixes
* piecestore kademlia newID
* add changes from kad demo
* PR comments addresses
* go func
* force travis build
* fixed merge conflicts
* fixed merge conflicts
* Merge branch 'coyle/kad-tests' of https://github.com/coyle/storj into coyle/kad-tests
* linter issues
* linting issues
* fixed merge conflicts
* linter is stupid
* Coyle/docker fix (#109)
* port changes
* Merge remote-tracking branch 'upstream/master'
* Merge remote-tracking branch 'upstream/master'
* Merge remote-tracking branch 'upstream/master'
* Merge remote-tracking branch 'upstream/master'
* Merge remote-tracking branch 'upstream/master'
* Merge branch 'master' of https://github.com/storj/storj
* fixing tag name
* no idea
* testing
* changes
* testing on travis
* testing
* changes to travis build
* new approach
* Merge branch 'master' into coyle/docker-fix
* hardcode version (#111)
* hardcode version
* adding coveralls / code coverage (#112)
* adding coveralls
* adding code coverage badge
* fixing badges
* verbose
* swap tests and coverage
* extra line
* maybe
* maybe
* moar
* gover maybe
* testing
* cleanup
* protos/netstate: remove stuff we're not using (#100)
* protos/netstate: remove stuff we're not using
* protos/netstate: add metadata field for segmentstore
* fix netstate client test
* pkg/process: start replacing pkg/process with cobra helpers (#98)
* Implement psclient interface (#107)
* Implement psclient interface
* Add string method to pieceID type
* try to fix linter errors
* Whoops missed an error
* More linter errors
* Typo
* Lol double typo
* Get everything working, begin adding tests for psclient rpc
* goimports
* Forgot to change the piecestore cli when changed the piecestore code
* Fix CLI
* remove ID length, added validator to pieceID
* Move grpc ranger to client
Change client PUT api to take a reader rather than return a writer
* GRPCRanger -> PieceRanger; Make PieceRanger a RangeCloser
* Forgot to remove offset
* Added message upon successful store
* Do that thing dennis and kaloyan wanted
* goimports
* Make closeConn a part of the interface for psclient
* Use interface
* Removed uneccessary new lines
* goimport
* Whoops
* Actually we don't want to use the interface in Piece Ranger
* Renamed piecestore in examples to piecestore-client; moved piecestore-cli to examples
* Make comments look nicer
* modified transport client based on the the design discussion
* modified transport client based on the the design discussion
* added the as discussed connection cache interface functionality
* added the as discussed connection cache interface functionality
* transport client changes
* transport client per code review changes
* per the code review comments
* transport client incorporates review comments
* fixes lint warnings
* lint warning fixes....client interface has to be Client
* client.go changes
* transport.go changes
* added test case
* added test cases
* comment fix
* comment fix
* Implement psclient interface
* Add string method to pieceID type
* try to fix linter errors
* Whoops missed an error
* More linter errors
* Typo
* Lol double typo
* Get everything working, begin adding tests for psclient rpc
* goimports
* Forgot to change the piecestore cli when changed the piecestore code
* Fix CLI
* remove ID length, added validator to pieceID
* Move grpc ranger to client
Change client PUT api to take a reader rather than return a writer
* GRPCRanger -> PieceRanger; Make PieceRanger a RangeCloser
* Forgot to remove offset
* Added message upon successful store
* Do that thing dennis and kaloyan wanted
* goimports
* Make closeConn a part of the interface for psclient
* Use interface
* Removed uneccessary new lines
* goimport
* Whoops
* Actually we don't want to use the interface in Piece Ranger
* Renamed piecestore in examples to piecestore-client; moved piecestore-cli to examples
* Make comments look nicer
