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23 Commits

Author SHA1 Message Date
Bryan Zubrod
d433fa55ea Fix IPVS persistence flag (#160) 
* Fix IPVS persistence flag

* Improve service proxy logging

* Fix Destination string

* Enhanced ipvs ServiceFlags handling
 2017-09-13 21:24:00 -05:00
Murali Reddy
62900c7659 NodePort service listens on all ip/interfaces in case of kube-proxy. Currently kube-router listens only on node IP. 
This fix introduces flag nodeport-bindon-all-ip with which you can have kube-proxy like behaviour. If not specified
only nodeIP will be open for connections.

Fixes #139
 2017-09-07 14:31:34 +05:30
Murali Reddy
f6a5e239f0 fixing gofmt, go_vet, gocyclo, golint errors 2017-09-04 17:10:48 +05:30
Murali Reddy
020d93238e fixing gofmt, go_vet, gocyclo, golint errorswq 2017-09-04 14:49:45 +05:30
Murali Reddy
ed935a4d7a fix gofmt, go_vet, misspells 2017-09-02 00:29:35 +05:30
Bryan Zubrod
c81bfbb616 Enable pod egress masquerading by default (#111) 
* Enable pod egress masquerading by default
- Adds flag "--enable-pod-egress" (default: true)
- Removes previously created iptables rule if option is changed to false
* Use an ipset to match Pod egress traffic to be masqueraded
* Set --cluster-cidr as depreciated flag
If set to anything, normal dynamic Pod egress masquerading is turned on.
* Use Replace else Add logic for updating export policy
Fixes errors logged due to existing statement in poliy.
 2017-08-10 11:50:06 -05:00
Murali Reddy
7934759ac2 Randomize service endpoint addition when configuring destination on ipvs service 
Fixes #99
 2017-08-05 03:38:36 +05:30
Bryan Zubrod
9e75203598 Use libnetwork/ipvs instead of libipvs (#101) 
* Use libnetwork/ipvs alternative
* PR image tag simplification
* Remove nested vendor directories
 2017-08-04 14:07:57 -05:00
Murali Reddy
a86bc44ecc fix null pointer dereference during kube-router --cleanup-config 
Fixes #79
 2017-07-27 23:24:03 +05:30
Murali Reddy
ef66b01002 WIP prometheus metrics: add pps in and out per service backend 2017-07-20 01:01:38 +05:30
Murali Reddy
60482bcd4c WIP : Expose active/inactive connection to service backend as prometheus metrics 
putting basic skelton framework to use prometheus

Fixes #5
 2017-07-16 03:11:13 +05:30
Bryan Zubrod
a3bddf6ecd services-controller: Add LoadBalancer Service support (#53) 
* Allow LoadBalancer Service type
* Update docs
 2017-07-11 18:12:11 -05:00
Bryan Zubrod
e5b47ed139 NetworkServiceController: Add hairpin-mode support (#44) 
* network_services_controller: Cosmetic updates
* Docs: Add hairpin-mode
* NSC: Add hairpin-mode support
* Reorder logic to ensure no hairpin rules without hairpin settings
* Fine-tune rules to include vport
* Fix delete rules logic/bugs
 2017-07-07 00:23:17 -05:00
bzub
cb661f871c controller: - Replace panics with errors 
- Add context to errors for debugging
            - Refactor init() code so ipset isn't required to run
              "kube-router --help" for example
 2017-07-05 21:57:29 -05:00
Murali Reddy
29396f9662 add option '--hostname-override' to deal with cases where kubelet is launched 
with --hostname-override flag

Fixes #23
 2017-06-10 07:10:38 +05:30
Murali Reddy
4b3d1a31b0 re-use ipvs handle for add/delete ipvs service, servers and listing services and server 
using ipvslib New() is causing system thread leak resulting in hitting GOLANG 10000 thread limit

Fixes #19, #24
 2017-06-07 23:49:29 +05:30
Murali Reddy
d4f32978fb use NODE_NAME env variable to get the node object when running as daemon set 
If NODE_NAME env is not set, fall back to hostname.

Partial fix towards #23 we still have issue where kube-router is run as agent
and kubelet is started with --hostname-overide flag
 2017-06-07 02:28:21 +05:30
Murali Reddy
4531a915bb Handle both cases where node can be registered with master either 
by host name or FQDN. kubelet can be started with --hostname-override with configurable value.
In AWS envirinment typcally its set FQDN obtained from the metda data. This fix ensures
we can deploy kube-router in case nodes are registered with FQDN

Fixes #17
 2017-05-30 03:11:51 +05:30
Murali Reddy
89cdc2a318 Incorrect generation of unique service key when building service and endpoint maps 
use spec.ports.name in the service manifest to uniqely generate service key used
internally to lookup services info and endpoints info maps

closes #3
 2017-05-13 01:15:13 +05:30
Murali Reddy
7004632cb3 BUG 1: If service manifest has "SessionAffinity" set, then configure IPVS to provide session persistence 
configure ipvs service configuration to provide persistence
 2017-05-09 00:44:04 +05:30
Murali Reddy
231e5cee71 enable kube-router to be run as daemonset 2017-04-27 03:08:37 +05:30
Murali Reddy
a4e773bd91 edit README and handle external (outside from cluster) access to nodeport services 
by masqurading the traffic so the return traffic from the pod hits the node before
going to the client
 2017-04-18 03:37:46 +05:30
Murali Reddy
04a5cc033a base line version tested with kube 1.5.6, 1.6 2017-04-17 10:33:09 +05:30