Remove mixin from doc

The kube-prometheus team has made necessary changes and not
using the mixin from doc any more.

Documentation/etcd-mixin/README.md

@@ -1,25 +0,0 @@
-# Prometheus Monitoring Mixin for etcd
-
-> NOTE: This project is *alpha* stage. Flags, configuration, behaviour and design may change significantly in following releases.
-
-A set of customisable Prometheus alerts for etcd.
-
-Instructions for use are the same as the [kubernetes-mixin](https://github.com/kubernetes-monitoring/kubernetes-mixin).
-
-## Background
-
-* For more information about monitoring mixins, see this [design doc](https://docs.google.com/document/d/1A9xvzwqnFVSOZ5fD3blKODXfsat5fg6ZhnKu9LK3lB4/edit#).
-
-## Testing alerts
-
-Make sure to have [jsonnet](https://jsonnet.org/) and [gojsontoyaml](https://github.com/brancz/gojsontoyaml) installed.
-
-First compile the mixin to a YAML file, which the promtool will read:
-```
-jsonnet -e '(import "mixin.libsonnet").prometheusAlerts' | gojsontoyaml > mixin.yaml
-```
-
-Then run the unit test:
-```
-promtool test rules test.yaml
-```

Documentation/etcd-mixin/test.yaml

@@ -1,135 +0,0 @@
-rule_files:
-  - mixin.yaml
-
-evaluation_interval: 1m
-
-tests:
-  - interval: 1m
-    input_series:
-      - series: 'up{job="etcd",instance="10.10.10.0"}'
-        values: '1 1 1 1 1 1 1 1 1 1 1 1 0 0 0 0'
-      - series: 'up{job="etcd",instance="10.10.10.1"}'
-        values: '1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0'
-      - series: 'up{job="etcd",instance="10.10.10.2"}'
-        values: '1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0'
-    alert_rule_test:
-      - eval_time: 3m
-        alertname: etcdInsufficientMembers
-      - eval_time: 5m
-        alertname: etcdInsufficientMembers
-      - eval_time: 12m
-        alertname: etcdMembersDown
-      - eval_time: 14m
-        alertname: etcdMembersDown
-        exp_alerts:
-          - exp_labels:
-              job: etcd
-              severity: critical
-            exp_annotations:
-              description: 'etcd cluster "etcd": members are down (3).'
-              summary: 'etcd cluster members are down.'
-      - eval_time: 7m
-        alertname: etcdInsufficientMembers
-      - eval_time: 11m
-        alertname: etcdInsufficientMembers
-        exp_alerts:
-          - exp_labels:
-              job: etcd
-              severity: critical
-            exp_annotations:
-              description: 'etcd cluster "etcd": insufficient members (1).'
-              summary: 'etcd cluster has insufficient number of members.'
-      - eval_time: 15m
-        alertname: etcdInsufficientMembers
-        exp_alerts:
-          - exp_labels:
-              job: etcd
-              severity: critical
-            exp_annotations:
-              description: 'etcd cluster "etcd": insufficient members (0).'
-              summary: 'etcd cluster has insufficient number of members.'
-
-  - interval: 1m
-    input_series:
-      - series: 'up{job="etcd",instance="10.10.10.0"}'
-        values: '1 1 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0'
-      - series: 'up{job="etcd",instance="10.10.10.1"}'
-        values: '1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0'
-      - series: 'up{job="etcd",instance="10.10.10.2"}'
-        values: '1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0'
-    alert_rule_test:
-      - eval_time: 14m
-        alertname: etcdMembersDown
-        exp_alerts:
-          - exp_labels:
-              job: etcd
-              severity: critical
-            exp_annotations:
-              description: 'etcd cluster "etcd": members are down (3).'
-              summary: 'etcd cluster members are down.'
-
-  - interval: 1m
-    input_series:
-      - series: 'up{job="etcd",instance="10.10.10.0"}'
-        values: '1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 0 0 0'
-      - series: 'up{job="etcd",instance="10.10.10.1"}'
-        values: '1 1 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0'
-      - series: 'etcd_network_peer_sent_failures_total{To="member-1",job="etcd",endpoint="test"}'
-        values: '0 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18'
-    alert_rule_test:
-      - eval_time: 13m
-        alertname: etcdMembersDown
-        exp_alerts:
-          - exp_labels:
-              job: etcd
-              severity: critical
-            exp_annotations:
-              description: 'etcd cluster "etcd": members are down (1).'
-              summary: 'etcd cluster members are down.'
-  - interval: 1m
-    input_series:
-      - series: 'etcd_server_leader_changes_seen_total{job="etcd",instance="10.10.10.0"}'
-        values: '0 0 2 0 0 1 0 0 0 0 0 0 0 0 0 0'
-      - series: 'etcd_server_leader_changes_seen_total{job="etcd",instance="10.10.10.1"}'
-        values: '0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0'
-      - series: 'etcd_server_leader_changes_seen_total{job="etcd",instance="10.10.10.2"}'
-        values: '0 0 0 0 0 0 0 0'
-    alert_rule_test:
-      - eval_time: 10m
-        alertname: etcdHighNumberOfLeaderChanges
-        exp_alerts:
-          - exp_labels:
-              job: etcd
-              severity: warning
-            exp_annotations:
-              description: 'etcd cluster "etcd": 4 leader changes within the last 15 minutes. Frequent elections may be a sign of insufficient resources, high network latency, or disruptions by other components and should be investigated.'
-              summary: 'etcd cluster has high number of leader changes.'
-  - interval: 1m
-    input_series:
-      - series: 'etcd_server_leader_changes_seen_total{job="etcd",instance="10.10.10.0"}'
-        values: '0 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0'
-      - series: 'etcd_server_leader_changes_seen_total{job="etcd",instance="10.10.10.1"}'
-        values: '0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0'
-      - series: 'etcd_server_leader_changes_seen_total{job="etcd",instance="10.10.10.2"}'
-        values: '0 0 0 0 0 0 0 0'
-    alert_rule_test:
-      - eval_time: 10m
-        alertname: etcdHighNumberOfLeaderChanges
-        exp_alerts:
-  - interval: 1m
-    input_series:
-      - series: '((etcd_mvcc_db_total_size_in_bytes/etcd_server_quota_backend_bytes)*100){job="etcd",instance="10.10.10.0"}'
-        values: '0 10 20 0 0 10 0 0 30 0 0 0 0 0 0 0'
-      - series: '((etcd_mvcc_db_total_size_in_bytes/etcd_server_quota_backend_bytes)*100){job="etcd",instance="10.10.10.1"}'
-        values: '0 0 10 0 20 0 0 0 0 0 0 0 0 0 0 0'
-      - series: '((etcd_mvcc_db_total_size_in_bytes/etcd_server_quota_backend_bytes)*100){job="etcd",instance="10.10.10.2"}'
-        values: '0 0 0 0 0 0 0 0'
-    alert_rule_test:
-      - eval_time: 10m
-        alertname: etcdExcessiveDatabaseGrowth
-        exp_alerts:
-          - exp_labels:
-              job: etcd
-              severity: warning
-            exp_annotations:
-              message: 'etcd cluster "etcd": Observed surge in etcd writes leading to 50% increase in database size over the past four hours, please check as it might be disruptive.'