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etcdctl: document "ETCD_WATCH_*" 

Signed-off-by: Gyuho Lee <gyuhox@gmail.com>
release-3.4
Gyuho Lee 2018-01-16 09:39:05 -08:00
parent 6ba5682e64
commit b8a95d7a9b
1 changed files with 14 additions and 0 deletions
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14
etcdctl/README.md
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@ -395,6 +395,20 @@ Receive events and execute `echo watch event received`:
# watch event received
```
Watch response is set via `ETCD_WATCH_*` environmental variables:
```bash
./etcdctl watch foo -- sh -c "env | grep ETCD_WATCH_"
# PUT
# foo
# bar
# ETCD_WATCH_REVISION=11
# ETCD_WATCH_KEY="foo"
# ETCD_WATCH_EVENT_TYPE="PUT"
# ETCD_WATCH_VALUE="bar"
```
Watch with environmental variables and execute `echo watch event received`:
```bash