mirror of
https://github.com/VictoriaMetrics/VictoriaMetrics.git
synced 2024-12-23 00:46:23 +01:00
5b8450fc1b
app/vmalert: detect alerting rules which don't match any series at all
vmalert starts to understand /query responses which contain object:
```
"stats":{"seriesFetched": "42"}
```
If object is present, vmalert parses it and populates a new field
`SeriesFetched`. This field is then used to populate the new metric
`vmalert_alerting_rules_last_evaluation_series_fetched` and to
display warnings in the vmalert's UI.
If response doesn't contain the new object (Prometheus or
VictoriaMetrics earlier than v1.90), then `SeriesFetched=nil`.
In this case, UI will contain no additional warnings.
And `vmalert_alerting_rules_last_evaluation_series_fetched` will
be set to `-1`. Negative value of the metric will help to compile
correct alerting rule in follow-up.
Thanks for the initial implementation to @Haleygo
See https://github.com/VictoriaMetrics/VictoriaMetrics/pull/4056
See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/4039
Signed-off-by: hagen1778 <roman@victoriametrics.com>
547 lines
22 KiB
Plaintext
547 lines
22 KiB
Plaintext
{% package main %}
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{% import (
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"time"
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"sort"
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"net/http"
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"github.com/VictoriaMetrics/VictoriaMetrics/app/vmalert/tpl"
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"github.com/VictoriaMetrics/VictoriaMetrics/app/vmalert/utils"
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"github.com/VictoriaMetrics/VictoriaMetrics/app/vmalert/notifier"
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) %}
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{% func Welcome(r *http.Request) %}
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{%= tpl.Header(r, navItems, "vmalert") %}
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<p>
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API:<br>
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{% for _, p := range apiLinks %}
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{%code p, doc := p[0], p[1] %}
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<a href="{%s p %}">{%s p %}</a> - {%s doc %}<br/>
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{% endfor %}
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{% if r.Header.Get("X-Forwarded-For") == "" %}
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System:<br>
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{% for _, p := range systemLinks %}
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{%code p, doc := p[0], p[1] %}
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<a href="{%s p %}">{%s p %}</a> - {%s doc %}<br/>
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{% endfor %}
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{% endif %}
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</p>
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{%= tpl.Footer(r) %}
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{% endfunc %}
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{% func ListGroups(r *http.Request, groups []APIGroup) %}
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{%code prefix := utils.Prefix(r.URL.Path) %}
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{%= tpl.Header(r, navItems, "Groups") %}
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{% if len(groups) > 0 %}
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{%code
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rOk := make(map[string]int)
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rNotOk := make(map[string]int)
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for _, g := range groups {
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for _, r := range g.Rules {
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if r.LastError != "" {
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rNotOk[g.ID]++
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} else {
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rOk[g.ID]++
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}
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}
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}
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%}
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<a class="btn btn-primary" role="button" onclick="collapseAll()">Collapse All</a>
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<a class="btn btn-primary" role="button" onclick="expandAll()">Expand All</a>
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{% for _, g := range groups %}
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<div class="group-heading{% if rNotOk[g.ID] > 0 %} alert-danger{% endif %}" data-bs-target="rules-{%s g.ID %}">
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<span class="anchor" id="group-{%s g.ID %}"></span>
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<a href="#group-{%s g.ID %}">{%s g.Name %}{% if g.Type != "prometheus" %} ({%s g.Type %}){% endif %} (every {%f.0 g.Interval %}s) #</a>
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{% if rNotOk[g.ID] > 0 %}<span class="badge bg-danger" title="Number of rules with status Error">{%d rNotOk[g.ID] %}</span> {% endif %}
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<span class="badge bg-success" title="Number of rules withs status Ok">{%d rOk[g.ID] %}</span>
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<p class="fs-6 fw-lighter">{%s g.File %}</p>
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{% if len(g.Params) > 0 %}
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<div class="fs-6 fw-lighter">Extra params
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{% for _, param := range g.Params %}
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<span class="float-left badge bg-primary">{%s param %}</span>
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{% endfor %}
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</div>
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{% endif %}
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{% if len(g.Headers) > 0 %}
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<div class="fs-6 fw-lighter">Extra headers
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{% for _, header := range g.Headers %}
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<span class="float-left badge bg-primary">{%s header %}</span>
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{% endfor %}
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</div>
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{% endif %}
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</div>
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<div class="collapse" id="rules-{%s g.ID %}">
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<table class="table table-striped table-hover table-sm">
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<thead>
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<tr>
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<th scope="col" style="width: 60%">Rule</th>
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<th scope="col" style="width: 20%" class="text-center" title="How many samples were produced by the rule">Samples</th>
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<th scope="col" style="width: 20%" class="text-center" title="How many seconds ago rule was executed">Updated</th>
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</tr>
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</thead>
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<tbody>
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{% for _, r := range g.Rules %}
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<tr{% if r.LastError != "" %} class="alert-danger"{% endif %}>
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<td>
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<div class="row">
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<div class="col-12 mb-2">
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{% if r.Type == "alerting" %}
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<b>alert:</b> {%s r.Name %} (for: {%v r.Duration %} seconds)
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{% else %}
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<b>record:</b> {%s r.Name %}
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{% endif %}
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{%= seriesFetchedWarn(r) %}
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<span><a target="_blank" href="{%s prefix+r.WebLink() %}">Details</a></span>
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</div>
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<div class="col-12">
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<code><pre>{%s r.Query %}</pre></code>
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</div>
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<div class="col-12 mb-2">
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{% if len(r.Labels) > 0 %} <b>Labels:</b>{% endif %}
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{% for k, v := range r.Labels %}
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<span class="ms-1 badge bg-primary">{%s k %}={%s v %}</span>
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{% endfor %}
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</div>
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{% if r.LastError != "" %}
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<div class="col-12">
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<b>Error:</b>
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<div class="error-cell">
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{%s r.LastError %}
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</div>
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</div>
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{% endif %}
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</div>
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</td>
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<td class="text-center">{%d r.LastSamples %}</td>
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<td class="text-center">{%f.3 time.Since(r.LastEvaluation).Seconds() %}s ago</td>
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</tr>
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{% endfor %}
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</tbody>
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</table>
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</div>
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{% endfor %}
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{% else %}
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<div>
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<p>No groups...</p>
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</div>
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{% endif %}
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{%= tpl.Footer(r) %}
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{% endfunc %}
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{% func ListAlerts(r *http.Request, groupAlerts []GroupAlerts) %}
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{%code prefix := utils.Prefix(r.URL.Path) %}
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{%= tpl.Header(r, navItems, "Alerts") %}
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{% if len(groupAlerts) > 0 %}
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<a class="btn btn-primary" role="button" onclick="collapseAll()">Collapse All</a>
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<a class="btn btn-primary" role="button" onclick="expandAll()">Expand All</a>
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{% for _, ga := range groupAlerts %}
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{%code g := ga.Group %}
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<div class="group-heading alert-danger" data-bs-target="rules-{%s g.ID %}">
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<span class="anchor" id="group-{%s g.ID %}"></span>
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<a href="#group-{%s g.ID %}">{%s g.Name %}{% if g.Type != "prometheus" %} ({%s g.Type %}){% endif %}</a>
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<span class="badge bg-danger" title="Number of active alerts">{%d len(ga.Alerts) %}</span>
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<br>
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<p class="fs-6 fw-lighter">{%s g.File %}</p>
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</div>
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{%code
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var keys []string
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alertsByRule := make(map[string][]*APIAlert)
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for _, alert := range ga.Alerts {
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if len(alertsByRule[alert.RuleID]) < 1 {
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keys = append(keys, alert.RuleID)
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}
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alertsByRule[alert.RuleID] = append(alertsByRule[alert.RuleID], alert)
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}
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sort.Strings(keys)
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%}
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<div class="collapse" id="rules-{%s g.ID %}">
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{% for _, ruleID := range keys %}
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{%code
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defaultAR := alertsByRule[ruleID][0]
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var labelKeys []string
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for k := range defaultAR.Labels {
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labelKeys = append(labelKeys, k)
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}
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sort.Strings(labelKeys)
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%}
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<br>
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<b>alert:</b> {%s defaultAR.Name %} ({%d len(alertsByRule[ruleID]) %})
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| <span><a target="_blank" href="{%s defaultAR.SourceLink %}">Source</a></span>
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<br>
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<b>expr:</b><code><pre>{%s defaultAR.Expression %}</pre></code>
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<table class="table table-striped table-hover table-sm">
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<thead>
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<tr>
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<th scope="col">Labels</th>
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<th scope="col">State</th>
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<th scope="col">Active at</th>
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<th scope="col">Value</th>
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<th scope="col">Link</th>
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</tr>
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</thead>
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<tbody>
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{% for _, ar := range alertsByRule[ruleID] %}
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<tr>
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<td>
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{% for _, k := range labelKeys %}
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<span class="ms-1 badge bg-primary">{%s k %}={%s ar.Labels[k] %}</span>
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{% endfor %}
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</td>
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<td>{%= badgeState(ar.State) %}</td>
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<td>
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{%s ar.ActiveAt.Format("2006-01-02T15:04:05Z07:00") %}
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{% if ar.Restored %}{%= badgeRestored() %}{% endif %}
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</td>
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<td>{%s ar.Value %}</td>
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<td>
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<a href="{%s prefix+ar.WebLink() %}">Details</a>
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</td>
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</tr>
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{% endfor %}
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</tbody>
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</table>
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{% endfor %}
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</div>
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<br>
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{% endfor %}
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{% else %}
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<div>
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<p>No active alerts...</p>
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</div>
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{% endif %}
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{%= tpl.Footer(r) %}
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{% endfunc %}
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{% func ListTargets(r *http.Request, targets map[notifier.TargetType][]notifier.Target) %}
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{%= tpl.Header(r, navItems, "Notifiers") %}
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{% if len(targets) > 0 %}
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<a class="btn btn-primary" role="button" onclick="collapseAll()">Collapse All</a>
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<a class="btn btn-primary" role="button" onclick="expandAll()">Expand All</a>
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{%code
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var keys []string
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for key := range targets {
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keys = append(keys, string(key))
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}
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sort.Strings(keys)
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%}
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{% for i := range keys %}
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{%code typeK, ns := keys[i], targets[notifier.TargetType(keys[i])]
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count := len(ns)
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%}
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<div class="group-heading data-bs-target="rules-{%s typeK %}">
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<span class="anchor" id="notifiers-{%s typeK %}"></span>
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<a href="#notifiers-{%s typeK %}">{%s typeK %} ({%d count %})</a>
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</div>
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<div class="collapse show" id="notifiers-{%s typeK %}">
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<table class="table table-striped table-hover table-sm">
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<thead>
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<tr>
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<th scope="col">Labels</th>
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<th scope="col">Address</th>
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</tr>
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</thead>
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<tbody>
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{% for _, n := range ns %}
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<tr>
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<td>
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{% for _, l := range n.Labels.GetLabels() %}
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<span class="ms-1 badge bg-primary">{%s l.Name %}={%s l.Value %}</span>
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{% endfor %}
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</td>
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<td>{%s n.Notifier.Addr() %}</td>
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</tr>
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{% endfor %}
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</tbody>
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</table>
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</div>
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{% endfor %}
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{% else %}
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<div>
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<p>No targets...</p>
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</div>
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{% endif %}
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{%= tpl.Footer(r) %}
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{% endfunc %}
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{% func Alert(r *http.Request, alert *APIAlert) %}
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{%code prefix := utils.Prefix(r.URL.Path) %}
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{%= tpl.Header(r, navItems, "") %}
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{%code
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var labelKeys []string
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for k := range alert.Labels {
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labelKeys = append(labelKeys, k)
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}
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sort.Strings(labelKeys)
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var annotationKeys []string
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for k := range alert.Annotations {
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annotationKeys = append(annotationKeys, k)
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}
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sort.Strings(annotationKeys)
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%}
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<div class="display-6 pb-3 mb-3">Alert: {%s alert.Name %}<span class="ms-2 badge {% if alert.State=="firing" %}bg-danger{% else %} bg-warning text-dark{% endif %}">{%s alert.State %}</span></div>
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<div class="container border-bottom p-2">
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<div class="row">
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<div class="col-2">
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Active at
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</div>
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<div class="col">
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{%s alert.ActiveAt.Format("2006-01-02T15:04:05Z07:00") %}
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</div>
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</div>
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</div>
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<div class="container border-bottom p-2">
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<div class="row">
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<div class="col-2">
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Expr
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</div>
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<div class="col">
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<code><pre>{%s alert.Expression %}</pre></code>
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</div>
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</div>
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</div>
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<div class="container border-bottom p-2">
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<div class="row">
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<div class="col-2">
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Labels
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</div>
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<div class="col">
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{% for _, k := range labelKeys %}
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<span class="m-1 badge bg-primary">{%s k %}={%s alert.Labels[k] %}</span>
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{% endfor %}
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</div>
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</div>
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</div>
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<div class="container border-bottom p-2">
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<div class="row">
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<div class="col-2">
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Annotations
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</div>
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<div class="col">
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{% for _, k := range annotationKeys %}
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<b>{%s k %}:</b><br>
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<p>{%s alert.Annotations[k] %}</p>
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{% endfor %}
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</div>
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</div>
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</div>
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<div class="container border-bottom p-2">
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<div class="row">
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<div class="col-2">
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Group
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</div>
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<div class="col">
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<a target="_blank" href="{%s prefix %}groups#group-{%s alert.GroupID %}">{%s alert.GroupID %}</a>
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</div>
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</div>
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</div>
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<div class="container border-bottom p-2">
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<div class="row">
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<div class="col-2">
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Source link
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</div>
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<div class="col">
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<a target="_blank" href="{%s alert.SourceLink %}">Link</a>
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</div>
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</div>
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</div>
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{%= tpl.Footer(r) %}
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{% endfunc %}
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{% func RuleDetails(r *http.Request, rule APIRule) %}
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{%code prefix := utils.Prefix(r.URL.Path) %}
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{%= tpl.Header(r, navItems, "") %}
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{%code
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var labelKeys []string
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for k := range rule.Labels {
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labelKeys = append(labelKeys, k)
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}
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sort.Strings(labelKeys)
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var annotationKeys []string
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for k := range rule.Annotations {
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annotationKeys = append(annotationKeys, k)
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}
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sort.Strings(annotationKeys)
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var seriesFetchedEnabled bool
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var seriesFetchedWarning bool
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for _, u := range rule.Updates {
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if u.seriesFetched != nil {
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seriesFetchedEnabled = true
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if *u.seriesFetched == 0 && u.samples == 0{
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seriesFetchedWarning = true
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}
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}
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}
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%}
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<div class="display-6 pb-3 mb-3">Rule: {%s rule.Name %}<span class="ms-2 badge {% if rule.Health!="ok" %}bg-danger{% else %} bg-success text-dark{% endif %}">{%s rule.Health %}</span></div>
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<div class="container border-bottom p-2">
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<div class="row">
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<div class="col-2">
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Expr
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</div>
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<div class="col">
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<code><pre>{%s rule.Query %}</pre></code>
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</div>
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</div>
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</div>
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{% if rule.Type == "alerting" %}
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<div class="container border-bottom p-2">
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<div class="row">
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<div class="col-2">
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For
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</div>
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<div class="col">
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{%v rule.Duration %} seconds
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</div>
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</div>
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</div>
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{% endif %}
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<div class="container border-bottom p-2">
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<div class="row">
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<div class="col-2">
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Labels
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</div>
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<div class="col">
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{% for _, k := range labelKeys %}
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<span class="m-1 badge bg-primary">{%s k %}={%s rule.Labels[k] %}</span>
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{% endfor %}
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</div>
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</div>
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</div>
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{% if rule.Type == "alerting" %}
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<div class="container border-bottom p-2">
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<div class="row">
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<div class="col-2">
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Annotations
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</div>
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<div class="col">
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{% for _, k := range annotationKeys %}
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<b>{%s k %}:</b><br>
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<p>{%s rule.Annotations[k] %}</p>
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{% endfor %}
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</div>
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</div>
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</div>
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<div class="container border-bottom p-2">
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<div class="row">
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<div class="col-2">
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Debug
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</div>
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<div class="col">
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{%v rule.Debug %}
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</div>
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</div>
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</div>
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{% endif %}
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<div class="container border-bottom p-2">
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<div class="row">
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<div class="col-2">
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Group
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</div>
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<div class="col">
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<a target="_blank" href="{%s prefix %}groups#group-{%s rule.GroupID %}">{%s rule.GroupID %}</a>
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</div>
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</div>
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</div>
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<br>
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{% if seriesFetchedWarning %}
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<div class="alert alert-warning" role="alert">
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<strong>Warning:</strong> some of updates have "Series fetched" equal to 0.<br>
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It might be that either this data is missing in the datasource or there is a typo in rule's expression.
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For example, <strong>foo{label="bar"} > 0</strong> could never trigger because <strong>foo{label="bar"}</strong>
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metric doesn't exist.
|
|
<br>
|
|
Rule's expressions without time series selector, like <strong>expr: 42</strong> or <strong>expr: time()</strong>
|
|
aren't fetching time series from datasource, so they could have "Series fetched" equal to 0 and this won't be a problem.
|
|
<br>
|
|
See more details about this detection <a target="_blank" href="https://github.com/VictoriaMetrics/VictoriaMetrics/issues/4039">here</a>.
|
|
</div>
|
|
{% endif %}
|
|
<div class="display-6 pb-3">Last {%d len(rule.Updates) %}/{%d rule.MaxUpdates %} updates</span>:</div>
|
|
<table class="table table-striped table-hover table-sm">
|
|
<thead>
|
|
<tr>
|
|
<th scope="col" title="The time when event was created">Updated at</th>
|
|
<th scope="col" style="width: 10%" class="text-center" title="How many samples were returned">Samples</th>
|
|
{% if seriesFetchedEnabled %}<th scope="col" style="width: 10%" class="text-center" title="How many series were scanned by datasource during the evaluation">Series fetched</th>{% endif %}
|
|
<th scope="col" style="width: 10%" class="text-center" title="How many seconds request took">Duration</th>
|
|
<th scope="col" class="text-center" title="Time used for rule execution">Executed at</th>
|
|
<th scope="col" class="text-center" title="cURL command with request example">cURL</th>
|
|
</tr>
|
|
</thead>
|
|
<tbody>
|
|
|
|
{% for _, u := range rule.Updates %}
|
|
<tr{% if u.err != nil %} class="alert-danger"{% endif %}>
|
|
<td>
|
|
<span class="badge bg-primary rounded-pill me-3" title="Updated at">{%s u.time.Format(time.RFC3339) %}</span>
|
|
</td>
|
|
<td class="text-center">{%d u.samples %}</td>
|
|
{% if seriesFetchedEnabled %}<td class="text-center">{% if u.seriesFetched != nil %}{%d *u.seriesFetched %}{% endif %}</td>{% endif %}
|
|
<td class="text-center">{%f.3 u.duration.Seconds() %}s</td>
|
|
<td class="text-center">{%s u.at.Format(time.RFC3339) %}</td>
|
|
<td>
|
|
<textarea class="curl-area" rows="1" onclick="this.focus();this.select()">{%s u.curl %}</textarea>
|
|
</td>
|
|
</tr>
|
|
</li>
|
|
{% if u.err != nil %}
|
|
<tr{% if u.err != nil %} class="alert-danger"{% endif %}>
|
|
<td colspan="{% if seriesFetchedEnabled %}6{%else%}5{%endif%}">
|
|
<span class="alert-danger">{%v u.err %}</span>
|
|
</td>
|
|
</tr>
|
|
{% endif %}
|
|
{% endfor %}
|
|
|
|
{%= tpl.Footer(r) %}
|
|
{% endfunc %}
|
|
|
|
|
|
|
|
{% func badgeState(state string) %}
|
|
{%code
|
|
badgeClass := "bg-warning text-dark"
|
|
if state == "firing" {
|
|
badgeClass = "bg-danger"
|
|
}
|
|
%}
|
|
<span class="badge {%s badgeClass %}">{%s state %}</span>
|
|
{% endfunc %}
|
|
|
|
{% func badgeRestored() %}
|
|
<span class="badge bg-warning text-dark" title="Alert state was restored after the service restart from remote storage">restored</span>
|
|
{% endfunc %}
|
|
|
|
{% func seriesFetchedWarn(r APIRule) %}
|
|
{% if r.LastSamples == 0 && r.LastSeriesFetched != nil && *r.LastSeriesFetched == 0 %}
|
|
<svg xmlns="http://www.w3.org/2000/svg"
|
|
data-bs-toggle="tooltip"
|
|
title="This rule last evaluation hasn't selected any time series from the datasource.
|
|
It might be that either this data is missing in the datasource or there is a typo in rule's expression.
|
|
See more in Details."
|
|
width="18" height="18" fill="currentColor" class="bi bi-exclamation-triangle-fill flex-shrink-0 me-2" viewBox="0 0 16 16" role="img" aria-label="Warning:">
|
|
<path d="M8 16A8 8 0 1 0 8 0a8 8 0 0 0 0 16zm.93-9.412-1 4.705c-.07.34.029.533.304.533.194 0 .487-.07.686-.246l-.088.416c-.287.346-.92.598-1.465.598-.703 0-1.002-.422-.808-1.319l.738-3.468c.064-.293.006-.399-.287-.47l-.451-.081.082-.381 2.29-.287zM8 5.5a1 1 0 1 1 0-2 1 1 0 0 1 0 2z"/>
|
|
</svg>
|
|
{% endif %}
|
|
{% endfunc %} |