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Commit Graph

177 Commits

Author SHA1 Message Date
Asim Aslam
57dcba666e gossip registry 2018-12-04 16:41:40 +00:00
Blair McMillan
a9593bad66 Prevent read/write map concurrency issue 2018-12-03 14:59:31 +10:00
Asim Aslam
9c2689301c add mock package comments 2018-12-01 12:56:21 +00:00
Asim Aslam
a1665ab37a Add consul package comment 2018-12-01 12:54:46 +00:00
Asim Aslam
29bb63b717 add mdns package comment 2018-11-26 16:13:17 +00:00
Blair McMillan
7171c00e42 Add ability to specify Consul options and default to AllowStale for all gets 2018-11-23 17:11:37 +10:00
Blair McMillan
e3a2fe52cd Only check if the service is in Consul once every deregister interval 2018-11-22 13:34:08 +10:00
Asim Aslam
4c821baab4 go fmt 2018-11-03 12:17:11 +00:00
lovelly
fd04722706 Fix tcp check no ttl error 2018-10-09 10:40:24 +08:00
Asim Aslam
9968c7d007 Add Init to all things, use init in cmd package to initialise 2018-08-08 18:57:29 +01:00
Asim Aslam
af328ee7b4 Support connect native registration 2018-08-06 17:12:34 +01:00
Shulhan
44b934d458 registry: rename context key "consul_register_tcp_check" to "consul_tcp_check" 2018-03-21 21:57:04 +07:00
Shulhan
65a90f5a21 registry.Register: use local variable to get context value 2018-03-21 18:18:48 +07:00
Shulhan
1eb4398b6c registry/consul: rename "RegisterTCPCheck" to "TCPCheck" 2018-03-21 18:17:56 +07:00
Shulhan
68ab671bd0 Use registry.options.Context to set Consul TCP check option 2018-03-19 20:34:56 +07:00
Shulhan
f4cdfaf27f Fix TCP address and port on service check registration 2018-03-19 20:34:12 +07:00
Shulhan
1599d717af Add option to enable TCP check with Consul registry 
One disadvantage of using TTL based health check is the high network
traffic between Consul agent (either between servers, or between server
and client).

In order for the services considered alive by Consul, microservices must
send an update TTL to Consul every n seconds (currently 30 seconds).

Here is the explanation about TTL check from Consul documentation [1]

    Time to Live (TTL) - These checks retain their last known state for a
    given TTL. The state of the check must be updated periodically over
    the HTTP interface. If an external system fails to update the status
    within a given TTL, the check is set to the failed state. This
    mechanism, conceptually similar to a dead man's switch, relies on the
    application to directly report its health. For example, a healthy app
    can periodically PUT a status update to the HTTP endpoint; if the app
    fails, the TTL will expire and the health check enters a critical
    state. The endpoints used to update health information for a given
    check are the pass endpoint and the fail endpoint. TTL checks also
    persist their last known status to disk. This allows the Consul agent
    to restore the last known status of the check across restarts.
    Persisted check status is valid through the end of the TTL from the
    time of the last check.


Hint:

    TTL checks also persist their last known status to disk. This allows
    the Consul agent to restore the last known status of the check
    across restarts.

When microservices update the TTL, Consul will write to disk. Writing to
disk means all other slaves need to replicate it, which means master need
to inform other standby Consul to pull the new catalog. Hence, the
increased traffic.

More information about this issue can be viewed at Consul mailing list [2].

[1] https://www.consul.io/docs/agent/checks.html
[2] https://groups.google.com/forum/#!topic/consul-tool/84h7qmCCpjg
 2018-03-14 19:40:59 +07:00
Asim Aslam
c9b40cb33b switch to stdlib context 2018-03-03 11:53:52 +00:00
Asim Aslam
982e6068cf support services without version 2018-03-01 17:35:13 +00:00
Asim Aslam
d0d9582b81
Merge pull request #206 from darren-west/master 
Added Options() to registry interface
 2018-02-19 20:52:28 +00:00
Asim Aslam
02260dcaa3 Add watch options 2018-02-19 17:12:37 +00:00
Siyun Wu
7c8d6087de add https support for consul 
using enviroment variables

for example:
export CONSUL_HTTP_SSL=1
export CONSUL_HTTP_ADDR="https://example.com"
export CONSUL_CLIENT_CERT="/Users/foo/.ssh/consul/consul.cert"
export CONSUL_CLIENT_KEY="/Users/foo/.ssh/consul/consul.key"
export CONSUL_CACERT="/Users/foo/.ssh/consul/ca.cert"
 2017-11-20 15:34:52 +08:00
Asim Aslam
1f03681d82 set test to use localhost 2017-11-09 14:21:26 +00:00
Asim Aslam
1c1d46e1ac Add some test logging 2017-11-09 14:16:35 +00:00
darren-west
d970586a29 Added Options() to registry interface 2017-09-28 11:16:56 +01:00
Sergey Sarbash
db0df07fd6 Check for uninitialized *config.HttpClient 2017-08-15 10:49:24 +03:00
Sergey Sarbash
fd01ead575 Fixes nil pointer dereferencing for Consul TLS transport 2017-08-15 09:27:39 +03:00
Emil Huseynaliev
9e1550db53 Update consul_watcher.go 
`WatchPlan` was renamed to `Plan` in the consul `watch` package in commit d7e23857ad
 2017-04-25 16:38:35 -04:00
Asim Aslam
90ed1390ee fix broken test 2017-04-17 15:31:50 +01:00
wangkechun
059b9d36d7 fix fmt str 2017-02-25 22:53:25 +08:00
Asim Aslam
71d717a06d strip doc.go files 2016-12-14 15:41:48 +00:00
Asim
c289f6acaa Make use of consul 0.7 deregister field. Now auto reaps dead services 2016-11-25 11:23:37 +01:00
chriss
fabdd4a704 Remove consul token helper method. 
A Consul config struct can be passed using the `Config` helper making this helper redundant.
 2016-11-21 16:16:24 +00:00
Asim
f9709ffa6e ensure the code does not panic 2016-11-18 07:30:50 +00:00
chriss
8a25723fe0 Set consul token via registry options. 
Optionally configure a token to use with the consul client.
 2016-11-18 00:07:12 +00:00
chriss
3d7187f405 Add the ability to pass consul client config via registry options. 
This can be used when you need to configure the consul client to use a specific configuration (E.G to pass a Token if consul is using ACL policies)
 2016-11-17 23:24:14 +00:00
Jelmer Snoeck
e59f7a7ace
ConsulRegistry: use health checks to select nodes. 
Consul sees a healthcheck that is in the warning state as a "failed"
node. This means that when we ask Consul for services that are passing,
it would not return nodes that have warning healthchecks.

In the cache, we only check on critical to skip for nodes. This makes
the cache out of sync with the non-cache implementation.

This patch reworks the non-cache implementation to ask for all nodes
(even unhealthy ones) and does the same check as within the cache, skip
nodes that have critical healthchecks.

We've noticed this issue when we deployed custom healthchecks where the
cache was acting properly, but after 1 minute we saw "None Available"
errors. This is due to the TTL expiry on the cache, which is then
followed by doing a non cached request.
 2016-08-26 08:36:45 +01:00
Asim
71d64f911f make a copy of services for handle method 2016-08-24 18:37:11 +01:00
Asim
0afaaeec8d make a copy of services 2016-08-24 18:27:15 +01:00
Jelmer Snoeck
81231c0b6f
ConsulWatcher: deregister if service checks fail. 2016-08-11 15:18:50 +01:00
Asim
2d6c403992 don't close next chan, instead use exit chan 2016-07-30 11:58:10 +01:00
Asim
6aac602b31 return error when zero services in mock registry 2016-06-30 20:11:04 +01:00
Asim
1254a87286 Add package comments 2016-05-24 22:22:46 +01:00
Asim
04bc20798d Don't strip decode because its good to be backwards compatible still 2016-05-22 18:43:47 +01:00
Asim
2708f9c04b No longer need to test old encoding 2016-05-22 18:41:06 +01:00
Asim
06ee80fd0a Strip old encoding 2016-05-22 18:34:47 +01:00
Asim
e541d45f38 When the TTL flips to critical we should issue a delete event 2016-05-03 18:34:57 +01:00
Asim
d3de45409f Simplify watcher test 2016-05-01 22:30:33 +01:00
Asim
7996785195 Try a different way of testing 2016-05-01 22:05:21 +01:00
Asim
3709831d8e Watch results may be unordered 2016-05-01 21:38:22 +01:00
Asim
50eb97129e Add watcher test 2016-05-01 21:30:14 +01:00
Asim
96104aa209 Add mdns test and fix the bug it revealed 2016-05-01 21:21:15 +01:00
Asim
e14f9a0380 Add watcher.... OH YEAAA 2016-05-01 19:31:03 +01:00
Asim
59f1a9a07b Use mdns-sd service 2016-04-30 00:22:31 +01:00
Asim
ae8c948202 Use our fork of mdns with all the updates 2016-04-30 00:15:00 +01:00
Asim
c26f989bbb Fix encoding so we split across txt records 2016-04-28 18:36:59 +01:00
Asim
6c108d95b2 First attempt at mdns 2016-04-27 18:21:05 +01:00
Asim
3d3044404e Don't add to defaults in func init, just add them to cmd 2016-04-26 18:49:02 +01:00
Asim
f7c57fd4f4 Mock watcher that just blocks 2016-04-26 18:32:43 +01:00
Asim
e2855c4bc2 Fix some mapping issues while we're at it 2016-04-09 22:19:03 +01:00
Asim
9d7bd3f424 God damn you nil map 2016-04-09 21:34:45 +01:00
Asim
b3fbd36ba7 Don't re-register if the state hasn't changed 2016-04-09 21:30:31 +01:00
Asim
bfe20d81d0 More linting fun 2016-04-06 18:03:27 +01:00
Asim Aslam
c462d7776c Merge pull request #63 from micro/encoding 
Fix Consul WARN issues for tags
 2016-04-05 16:14:28 +01:00
Asim
17a97e2ef1 Set ver 2016-03-29 18:32:16 +01:00
Asim
cb89b2ebca update encoding test 2016-03-29 18:16:55 +01:00
Asim
61178d1b45 Update encoding to be backwards compatible. 2016-03-29 17:44:46 +01:00
Asim
0a81cb1190 unexport mock registry 2016-03-17 22:54:18 +00:00
Asim
e941796234 Add encoding that does not throw warns 2016-03-16 21:23:41 +00:00
Asim
f088074f29 Registry init 2016-03-15 22:20:21 +00:00
Asim
15db053bc6 update mock tests 2016-03-14 19:15:42 +00:00
Asim
71764564e7 Add packages for the defaults 2016-03-14 10:45:38 +00:00
Asim
ad0744a95f make the mock sliggghtly more useful 2016-02-26 00:09:06 +00:00
Asim
93b923261c Add ErrNotFound 2016-02-25 12:42:31 +00:00
Asim
146701eeaa Add some comments 2016-01-30 21:13:34 +00:00
Asim
013d1de2c4 Prefer RegisterTTL set through Init 2016-01-27 12:23:18 +00:00
Asim
61094fefe8 If TTL is nil it might bail 2016-01-27 00:32:16 +00:00
Asim
47bfdbe49e Fix mock 2016-01-27 00:18:44 +00:00
Asim
55145d08a1 Use agent service for this 2016-01-27 00:15:46 +00:00
Asim
5ec9d561a6 meh 2016-01-26 23:32:27 +00:00
Asim
ce0c5908a6 Update the watcher 2016-01-26 21:10:27 +00:00
Asim
cd13f0389f Fix this cruft 2016-01-26 20:44:29 +00:00
Asim
822cc0e5da Use ServiceID as node.ID rather than Node.... in time remove Node/Address completely 2016-01-26 20:30:05 +00:00
Asim
a6ce435a07 If secure or tlsconfig not nil then secure 2016-01-17 00:33:07 +00:00
Asim
ae2ab911ed Access tls config 2016-01-16 23:39:47 +00:00
Asim
60ee085cbc Add secure option to registry 2016-01-16 20:25:18 +00:00
Asim
8bf72a3325 Replace map[string]string with Context for extra options. map[string]string is essentially useless. Context can store anything 2016-01-06 16:25:12 +00:00
Asim
191e835aa9 Add extra options to be used by others that need them 2015-12-31 18:14:40 +00:00
Asim
be43d827c7 Add String method to all interfaces 2015-12-19 21:56:14 +00:00
Asim
d7b3765c71 Allow setting of timeout for registry 2015-12-19 18:28:08 +00:00
Asim
ed75f84584 add json tags to registry service 2015-12-15 21:02:43 +00:00
Asim
eefb9c53d4 Move to a selector package 2015-12-09 19:23:16 +00:00
Asim
a2c862dd21 Add service random 2015-12-09 12:44:38 +00:00
Asim
46905347bb unblack list when err is nil 2015-12-09 02:42:02 +00:00
Asim
f59787a906 add blacklist selector 2015-12-09 02:31:17 +00:00
Asim
9072a944e2 Add selector code 2015-12-09 00:02:45 +00:00
Asim
011a3dc9e3 Add watcher comments 2015-12-05 02:05:06 +00:00
Asim
d4f3a6070c Update the watch interface 2015-12-05 01:12:29 +00:00
Asim
04e07f4b39 Move plugins to go-plugins 2015-11-25 00:17:15 +00:00
Asim
5d88115f2a update links from myodc to micro 2015-11-20 16:17:33 +00:00