120 lines
3.3 KiB
Go
120 lines
3.3 KiB
Go
// Copyright 2018 Prometheus Team
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package cli
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import (
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"bytes"
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"context"
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"fmt"
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"github.com/xlab/treeprint"
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"github.com/prometheus/alertmanager/api/v2/models"
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"github.com/prometheus/alertmanager/dispatch"
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kingpin "gopkg.in/alecthomas/kingpin.v2"
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)
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type routingShow struct {
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configFile string
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labels []string
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expectedReceivers string
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debugTree bool
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}
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const (
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routingHelp = `Prints alert routing tree
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Will print whole routing tree in form of ASCII tree view.
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Routing is loaded from a local configuration file or a running Alertmanager configuration.
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Specifying --config.file takes precedence over --alertmanager.url.
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Example:
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./amtool config routes [show] --config.file=doc/examples/simple.yml
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`
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branchSlugSeparator = " "
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)
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func configureRoutingCmd(app *kingpin.CmdClause) {
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var (
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c = &routingShow{}
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routingCmd = app.Command("routes", routingHelp)
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routingShowCmd = routingCmd.Command("show", routingHelp).Default()
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configFlag = routingCmd.Flag("config.file", "Config file to be tested.")
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)
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configFlag.ExistingFileVar(&c.configFile)
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routingShowCmd.Action(execWithTimeout(c.routingShowAction))
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configureRoutingTestCmd(routingCmd, c)
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}
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func (c *routingShow) routingShowAction(ctx context.Context, _ *kingpin.ParseContext) error {
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// Load configuration from file or URL.
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cfg, err := loadAlertmanagerConfig(ctx, alertmanagerURL, c.configFile)
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if err != nil {
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kingpin.Fatalf("%s", err)
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return err
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}
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route := dispatch.NewRoute(cfg.Route, nil)
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tree := treeprint.New()
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convertRouteToTree(route, tree)
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fmt.Println("Routing tree:")
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fmt.Println(tree.String())
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return nil
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}
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func getRouteTreeSlug(route *dispatch.Route, showContinue bool, showReceiver bool) string {
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var branchSlug bytes.Buffer
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if route.Matchers.Len() == 0 {
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branchSlug.WriteString("default-route")
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} else {
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branchSlug.WriteString(route.Matchers.String())
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}
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if route.Continue && showContinue {
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branchSlug.WriteString(branchSlugSeparator)
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branchSlug.WriteString("continue: true")
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}
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if showReceiver {
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branchSlug.WriteString(branchSlugSeparator)
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branchSlug.WriteString("receiver: ")
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branchSlug.WriteString(route.RouteOpts.Receiver)
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}
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return branchSlug.String()
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}
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func convertRouteToTree(route *dispatch.Route, tree treeprint.Tree) {
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branch := tree.AddBranch(getRouteTreeSlug(route, true, true))
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for _, r := range route.Routes {
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convertRouteToTree(r, branch)
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}
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}
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func getMatchingTree(route *dispatch.Route, tree treeprint.Tree, lset models.LabelSet) {
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final := true
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branch := tree.AddBranch(getRouteTreeSlug(route, false, false))
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for _, r := range route.Routes {
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if r.Matchers.Matches(convertClientToCommonLabelSet(lset)) {
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getMatchingTree(r, branch, lset)
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final = false
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if !r.Continue {
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break
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}
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}
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}
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if final {
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branch.SetValue(getRouteTreeSlug(route, false, true))
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}
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}
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