fix(ui): use correct case for silenceForm flags

CHANGELOG.md

@@ -1,5 +1,12 @@
 # Changelog
 
+## v0.114
+
+### Fixed
+
+- Fixed silcen form crashes when `silenceForm:defaultAlertmanagers` config option
+  is not set.
+
 ## v0.113
 
 ### Added

cmd/karma/tests/testscript/112_flag_defaultAlertmanagers.txt

@@ -0,0 +1,116 @@
+karma.bin-should-work --log.config --silenceForm.defaultAlertmanagers=aaa --silenceForm.defaultAlertmanagers=bbb --check-config
+! stdout .
+cmp stderr stderr.txt
+
+-- stderr.txt --
+level=info msg="Version: dev"
+level=info msg="Parsed configuration:"
+level=info msg="authentication:"
+level=info msg="  header:"
+level=info msg="    name: \"\""
+level=info msg="    value_re: \"\""
+level=info msg="    group_name: \"\""
+level=info msg="    group_value_re: \"\""
+level=info msg="    group_value_separator: ' '"
+level=info msg="  basicAuth:"
+level=info msg="    users: []"
+level=info msg="authorization:"
+level=info msg="  groups: []"
+level=info msg="  acl:"
+level=info msg="    silences: \"\""
+level=info msg="alertmanager:"
+level=info msg="  interval: 1m0s"
+level=info msg="  servers: []"
+level=info msg="alertAcknowledgement:"
+level=info msg="  enabled: false"
+level=info msg="  duration: 15m0s"
+level=info msg="  author: karma"
+level=info msg="  comment: ACK! This alert was acknowledged using karma on %NOW%"
+level=info msg="annotations:"
+level=info msg="  default:"
+level=info msg="    hidden: false"
+level=info msg="  hidden: []"
+level=info msg="  visible: []"
+level=info msg="  keep: []"
+level=info msg="  strip: []"
+level=info msg="  order: []"
+level=info msg="  actions: []"
+level=info msg="  enableInsecureHTML: false"
+level=info msg="custom:"
+level=info msg="  css: \"\""
+level=info msg="  js: \"\""
+level=info msg="debug: false"
+level=info msg="filters:"
+level=info msg="  default: []"
+level=info msg="grid:"
+level=info msg="  sorting:"
+level=info msg="    order: startsAt"
+level=info msg="    reverse: true"
+level=info msg="    label: alertname"
+level=info msg="    customValues:"
+level=info msg="      labels: {}"
+level=info msg="  auto:"
+level=info msg="    ignore: []"
+level=info msg="    order: []"
+level=info msg="  groupLimit: 40"
+level=info msg="history:"
+level=info msg="  enabled: true"
+level=info msg="  workers: 30"
+level=info msg="  timeout: 20s"
+level=info msg="  rewrite: []"
+level=info msg="karma:"
+level=info msg="  name: karma"
+level=info msg="labels:"
+level=info msg="  order: []"
+level=info msg="  keep: []"
+level=info msg="  keep_re: []"
+level=info msg="  strip: []"
+level=info msg="  strip_re: []"
+level=info msg="  valueOnly: []"
+level=info msg="  valueOnly_re: []"
+level=info msg="  color:"
+level=info msg="    custom: {}"
+level=info msg="    static: []"
+level=info msg="    unique: []"
+level=info msg="listen:"
+level=info msg="  address: \"\""
+level=info msg="  timeout:"
+level=info msg="    read: 10s"
+level=info msg="    write: 20s"
+level=info msg="  tls:"
+level=info msg="    cert: \"\""
+level=info msg="    key: \"\""
+level=info msg="  port: 8080"
+level=info msg="  prefix: /"
+level=info msg="log:"
+level=info msg="  level: info"
+level=info msg="  format: text"
+level=info msg="  config: true"
+level=info msg="  requests: false"
+level=info msg="  timestamp: false"
+level=info msg="receivers:"
+level=info msg="  keep: []"
+level=info msg="  strip: []"
+level=info msg="silences:"
+level=info msg="  expired: 10m0s"
+level=info msg="  comments:"
+level=info msg="    linkDetect:"
+level=info msg="      rules: []"
+level=info msg="silenceForm:"
+level=info msg="  strip:"
+level=info msg="    labels: []"
+level=info msg="  defaultAlertmanagers:"
+level=info msg="    - aaa"
+level=info msg="    - bbb"
+level=info msg="ui:"
+level=info msg="  refresh: 30s"
+level=info msg="  hideFiltersWhenIdle: true"
+level=info msg="  colorTitlebar: false"
+level=info msg="  theme: auto"
+level=info msg="  animations: true"
+level=info msg="  minimalGroupWidth: 420"
+level=info msg="  alertsPerGroup: 5"
+level=info msg="  collapseGroups: collapsedOnMobile"
+level=info msg="  multiGridLabel: \"\""
+level=info msg="  multiGridSortReverse: false"
+level=info msg="Configuration is valid"

demo/karma.yaml

@@ -120,8 +120,6 @@ silenceForm:
       - job
       - severity
       - region
-  defaultAlertmanagers:
-    - single
 ui:
   refresh: 10s
   hideFiltersWhenIdle: true

internal/config/config.go

@@ -130,8 +130,8 @@ func SetupFlags(f *pflag.FlagSet) {
 		"List of receivers to not display alerts for")
 
 	f.Duration("silences.expired", time.Minute*10, "Maximum age of expired silences to show on active alerts")
-	f.StringSlice("silenceform.strip.labels", []string{}, "List of labels to ignore when auto-filling silence form from alerts")
-	f.StringSlice("silenceform.defaultAlertmanagers", []string{}, "List of Alertmanager names to use as default when creating a new silence")
+	f.StringSlice("silenceForm.strip.labels", []string{}, "List of labels to ignore when auto-filling silence form from alerts")
+	f.StringSlice("silenceForm.defaultAlertmanagers", []string{}, "List of Alertmanager names to use as default when creating a new silence")
 
 	f.String("listen.address", "", "IP/Hostname to listen on")
 	f.Int("listen.port", 8080, "HTTP port to listen on")