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25 Commits

Author SHA1 Message Date
Alessandro Puccetti
66390c8b0e circleci: push traffic control plugin image to docker hub 
After this patch, circleci builds the traffic control plugin image and
pushes it on docker hub. Rename traffic control plugin docker image
to "weaveworks/scope-traffic-control-plugin".
 2016-09-12 15:47:28 +02:00
Alessandro Puccetti
f2c2ce9d33 plugins/traffic-control/docker: integrate loopIteration() into Start() 
Move `loopIteration()` code in an anonymous function inside `Start()`.
 2016-09-09 13:57:21 +02:00
Alessandro Puccetti
10d33fb24f plugins/traffic-control: fix output for getStatus() 
If `tc qdisc show dev eth0` returns an error, then output is set to empty string.
 2016-09-09 13:57:21 +02:00
Alessandro Puccetti
deea4d9af1 plugins/traffic-contorl: fix error message in getNSID 
Return error message that show what fails and why.
 2016-09-09 13:57:21 +02:00
Alessandro Puccetti
097225332a plugins/traffic-control: switch to http.ServeMux 
It is nicer to instantiate a http.ServeMux, instead of modifying
the global http handler.
 2016-09-09 13:57:21 +02:00
Alessandro Puccetti
3bd6e4c88d plugins/traffic-control: fix Makefile 2016-09-09 13:14:24 +02:00
Alessandro Puccetti
c722edf534 plugins/traffic-control: export trafficControlStatus 
Rename trafficControlStatus to TrafficControlStatus, because lint complains.
 2016-09-09 13:14:24 +02:00
Alessandro Puccetti
01b6bc5be6 plugins/traffic-contorl: split DoTrafficControl() 
For clearer code `DoTrafficControl()` is splitted in multiple functions.
 2016-09-09 13:14:24 +02:00
Alessandro Puccetti
f6708503f0 plugins/traffic-control: add helper functions to trafficControlStatus 
SetLatency and SetPacketLoss handle the empty value that is represented by "-".
 2016-09-09 13:14:24 +02:00
Alessandro Puccetti
00a87922e6 plugins/traffic-control: code refactoring 
Substitute `split()` with `strings.Fileds()`.
Remove unnecessary functions and commented code.
Unabbreviate variable and function names.
 2016-09-09 13:14:24 +02:00
Alessandro Puccetti
9b86143deb plugins/traffic-control: README 
Added simple README to give an overview of the plugin.
Also the value of the latency controls were changed.
 2016-09-09 12:32:10 +02:00
Alessandro Puccetti
71f9d8874f plugins/traffic-control: Some style fixes 
Comment before exported functions.
When `if` block ends with a return statement, drop the else and outdent its block.
 2016-09-09 12:31:53 +02:00
Alessandro Puccetti
2bbcd415d1 plugins/traffic-control: add table prefix constant 
For cleaner code
 2016-09-06 11:53:36 +02:00
Alessandro Puccetti
c213270028 plugins/traffic-control: remove latency and packet loss from generic metadata 
Latency and packet loass are displayed in the table, there is not need to
show them in the general section too.
 2016-09-06 11:53:36 +02:00
Alessandro Puccetti
c0fca6d2be plugins/traffic-control: spilt getControls() 
This is done to make easier get specific controls when MetadataRow will
accept controls.
 2016-09-06 11:53:36 +02:00
Alessandro Puccetti
83c8e7af34 plugins/traffic-control: latency and packet loss can be combined 
This patch allows to set latency and packet loss parameters together
by "adding" the new paramter to the qdisc.
 2016-09-06 11:53:36 +02:00
Alessandro Puccetti
79453519b2 plugins/traffic-control: separate function for clear settings 
Make easier to combine latency and packet loss settings.
 2016-09-06 11:53:36 +02:00
Alessandro Puccetti
176cb5f99f plugins/traffic-control: added packet drop control 
Packet drop control set 10% of packet drop
 2016-09-06 11:53:36 +02:00
Alessandro Puccetti
5d3e5b23ec plugins/traffic-control: added clear setting control 
This control remove any previous setting
 2016-09-06 11:53:35 +02:00
Alessandro Puccetti
6eefb70628 plugins/traffic-control: add packet loss to the report 
This patch add packet loss to the report and the appropriet metadata template.
 2016-09-06 11:53:35 +02:00
Alessandro Puccetti
8cbd2c2db6 plugins/traffic-control: create Traffic control table 
The traffic control plugin will display the status in this table.
 2016-09-06 11:53:35 +02:00
Alessandro Puccetti
9df70ec380 plugins/traffic-control: refactoring 
Use string for delay and packet loss parameter, code refactoring,
improved error messages, fix typos, add empty status representation,
fix namesapce ID representation.
 2016-09-06 11:53:35 +02:00
Alessandro Puccetti
a743b59dcf plugins/traffic-control: added status caching 
To avoid to run `tc` every tic to get the qdisc status, we cache it.
The cache is updated every time a value is changed via the control interface.

NOTE: This will keep track only of the changes by done the plugins interface,
if the qdisc parameters are changed by another applcation or by the user
via terminal, such changes will not be caught.
 2016-09-06 11:53:35 +02:00
Alessandro Puccetti
068c366aa8 plugins/traffic-control: add status information in metadata 
This patch sends the delay and packet loss values along with
the container metadata. In this way the user has a direct feedback
about the traffic control plugin status.
 2016-09-06 11:53:35 +02:00
Krzesimir Nowak
c5cc9814fe Add an example traffic control plugin 
As it is an initial implementation, it only controls latency of the
outgoing (egress) traffic. There is also a TODO to turn this plugin
into something more serious. Also, at some point we may consider
moving this plugin outside of "example" directory.
 2016-09-06 11:53:35 +02:00