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// Copyright 2018 Prometheus Team
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package cli
import (
"net/url"
"os"
"path"
"time"
"github.com/go-openapi/strfmt"
"github.com/prometheus/common/version"
kingpin "gopkg.in/alecthomas/kingpin.v2"
"github.com/prometheus/alertmanager/api/v2/client"
"github.com/prometheus/alertmanager/cli/config"
"github.com/prometheus/alertmanager/cli/format"
clientruntime "github.com/go-openapi/runtime/client"
)
var (
verbose bool
alertmanagerURL *url.URL
output string
timeout time.Duration
configFiles = []string{os.ExpandEnv("$HOME/.config/prometheus/amtool.yml"), "/etc/prometheus/amtool.yml"}
legacyFlags = map[string]string{"comment_required": "require-comment"}
)
func requireAlertManagerURL(pc *kingpin.ParseContext) error {
// Return without error if any help flag is set.
for _, elem := range pc.Elements {
f, ok := elem.Clause.(*kingpin.FlagClause)
if !ok {
continue
}
name := f.Model().Name
if name == "help" || name == "help-long" || name == "help-man" {
return nil
}
}
if alertmanagerURL == nil {
kingpin.Fatalf("required flag --alertmanager.url not provided")
}
return nil
}
const (
defaultAmHost = "localhost"
defaultAmPort = "9093"
defaultAmApiv2path = "/api/v2"
)
// NewAlertmanagerClient initializes an alertmanager client with the given URL
func NewAlertmanagerClient(amURL *url.URL) *client.Alertmanager {
address := defaultAmHost + ":" + defaultAmPort
schemes := []string{"http"}
if amURL.Host != "" {
address = amURL.Host // URL documents host as host or host:port
}
if amURL.Scheme != "" {
schemes = []string{amURL.Scheme}
}
cr := clientruntime.New(address, path.Join(amURL.Path, defaultAmApiv2path), schemes)
if amURL.User != nil {
password, _ := amURL.User.Password()
cr.DefaultAuthentication = clientruntime.BasicAuth(amURL.User.Username(), password)
}
return client.New(cr, strfmt.Default)
}
// Execute is the main function for the amtool command
func Execute() {
var (
app = kingpin.New("amtool", helpRoot)
)
format.InitFormatFlags(app)
app.Flag("verbose", "Verbose running information").Short('v').BoolVar(&verbose)
app.Flag("alertmanager.url", "Alertmanager to talk to").Default("http://localhost:9093/").URLVar(&alertmanagerURL)
app.Flag("output", "Output formatter (simple, extended, json)").Short('o').Default("simple").EnumVar(&output, "simple", "extended", "json")
app.Flag("timeout", "Timeout for the executed command").Default("30s").DurationVar(&timeout)
app.Version(version.Print("amtool"))
app.GetFlag("help").Short('h')
app.UsageTemplate(kingpin.CompactUsageTemplate)
resolver, err := config.NewResolver(configFiles, legacyFlags)
if err != nil {
kingpin.Fatalf("could not load config file: %v\n", err)
}
configureAlertCmd(app)
configureSilenceCmd(app)
configureCheckConfigCmd(app)
configureClusterCmd(app)
configureConfigCmd(app)
err = resolver.Bind(app, os.Args[1:])
if err != nil {
kingpin.Fatalf("%v\n", err)
}
_, err = app.Parse(os.Args[1:])
if err != nil {
kingpin.Fatalf("%v\n", err)
}
}
const (
helpRoot = `View and modify the current Alertmanager state.
Config File:
The alertmanager tool will read a config file in YAML format from one of two
default config locations: $HOME/.config/prometheus/amtool.yml or
/etc/prometheus/amtool.yml
All flags can be given in the config file, but the following are the suited for
static configuration:
alertmanager.url
Set a default alertmanager url for each request
author
Set a default author value for new silences. If this argument is not
specified then the username will be used
require-comment
Bool, whether to require a comment on silence creation. Defaults to true
output
Set a default output type. Options are (simple, extended, json)
date.format
Sets the output format for dates. Defaults to "2006-01-02 15:04:05 MST"
`
)
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