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Make alert channel size configurable (and bigger)

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Signed-off-by: Filippo Giunchedi <filippo@wikimedia.org>
This commit is contained in:
Filippo Giunchedi 2020-11-25 11:45:40 +01:00
parent 60b1c5eb64
commit f03c45406c
4 changed files with 45 additions and 39 deletions
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3
README.md
View File

@ -63,6 +63,9 @@ msg_template: "Alert {{ .Labels.alertname }} on {{ .Labels.instance }} is {{ .St
# Note: When sending only one message per alert group the default
# msg_template is set to
# "Alert {{ .GroupLabels.alertname }} for {{ .GroupLabels.job }} is {{ .Status }}"
# Set the internal buffer size for alerts received but not yet sent to IRC.
alert_buffer_size: 2048
```
Running the bot (assuming *$GOPATH* and *$PATH* are properly setup for go):

56
config.go
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@ -31,37 +31,39 @@ type IRCChannel struct {
}
type Config struct {
HTTPHost string `yaml:"http_host"`
HTTPPort int `yaml:"http_port"`
IRCNick string `yaml:"irc_nickname"`
IRCNickPass string `yaml:"irc_nickname_password"`
IRCRealName string `yaml:"irc_realname"`
IRCHost string `yaml:"irc_host"`
IRCPort int `yaml:"irc_port"`
IRCHostPass string `yaml:"irc_host_password"`
IRCUseSSL bool `yaml:"irc_use_ssl"`
IRCVerifySSL bool `yaml:"irc_verify_ssl"`
IRCChannels []IRCChannel `yaml:"irc_channels"`
MsgTemplate string `yaml:"msg_template"`
MsgOnce bool `yaml:"msg_once_per_alert_group"`
UsePrivmsg bool `yaml:"use_privmsg"`
HTTPHost string `yaml:"http_host"`
HTTPPort int `yaml:"http_port"`
IRCNick string `yaml:"irc_nickname"`
IRCNickPass string `yaml:"irc_nickname_password"`
IRCRealName string `yaml:"irc_realname"`
IRCHost string `yaml:"irc_host"`
IRCPort int `yaml:"irc_port"`
IRCHostPass string `yaml:"irc_host_password"`
IRCUseSSL bool `yaml:"irc_use_ssl"`
IRCVerifySSL bool `yaml:"irc_verify_ssl"`
IRCChannels []IRCChannel `yaml:"irc_channels"`
MsgTemplate string `yaml:"msg_template"`
MsgOnce bool `yaml:"msg_once_per_alert_group"`
UsePrivmsg bool `yaml:"use_privmsg"`
AlertBufferSize int `yaml:"alert_buffer_size"`
}
func LoadConfig(configFile string) (*Config, error) {
config := &Config{
HTTPHost: "localhost",
HTTPPort: 8000,
IRCNick: "alertmanager-irc-relay",
IRCNickPass: "",
IRCRealName: "Alertmanager IRC Relay",
IRCHost: "example.com",
IRCPort: 7000,
IRCHostPass: "",
IRCUseSSL: true,
IRCVerifySSL: true,
IRCChannels: []IRCChannel{},
MsgOnce: false,
UsePrivmsg: false,
HTTPHost: "localhost",
HTTPPort: 8000,
IRCNick: "alertmanager-irc-relay",
IRCNickPass: "",
IRCRealName: "Alertmanager IRC Relay",
IRCHost: "example.com",
IRCPort: 7000,
IRCHostPass: "",
IRCUseSSL: true,
IRCVerifySSL: true,
IRCChannels: []IRCChannel{},
MsgOnce: false,
UsePrivmsg: false,
AlertBufferSize: 2048,
}
if configFile != "" {

23
config_test.go
View File

@ -35,17 +35,18 @@ func TestNoConfig(t *testing.T) {
func TestLoadGoodConfig(t *testing.T) {
expectedConfig := &Config{
HTTPHost: "test.web",
HTTPPort: 8888,
IRCNick: "foo",
IRCHost: "irc.example.com",
IRCPort: 1234,
IRCHostPass: "hostsecret",
IRCUseSSL: true,
IRCChannels: []IRCChannel{IRCChannel{Name: "#foobar"}},
MsgTemplate: defaultMsgTemplate,
MsgOnce: false,
UsePrivmsg: false,
HTTPHost: "test.web",
HTTPPort: 8888,
IRCNick: "foo",
IRCHost: "irc.example.com",
IRCPort: 1234,
IRCHostPass: "hostsecret",
IRCUseSSL: true,
IRCChannels: []IRCChannel{IRCChannel{Name: "#foobar"}},
MsgTemplate: defaultMsgTemplate,
MsgOnce: false,
UsePrivmsg: false,
AlertBufferSize: 666,
}
expectedData, err := yaml.Marshal(expectedConfig)
if err != nil {

2
main.go
View File

@ -37,7 +37,7 @@ func main() {
return
}
alertMsgs := make(chan AlertMsg, 10)
alertMsgs := make(chan AlertMsg, config.AlertBufferSize)
ircNotifier, err := NewIRCNotifier(config, alertMsgs)
if err != nil {