feat: add k8sHealth

README.md

@@ -28,6 +28,12 @@
 ---
 
 ## Tools
+
+- k8sHealth
+    - Checks Kubernetes health, including node status and certificate expiration.
+    - Sends alarm notifications to a Slack webhook.
+    - Config: `/etc/mono/k8s.yaml`
+
 - shutdownNotifier
   - Notifies of a poweroff/poweron through the Slack webhook.
 

build.sh

@@ -2,3 +2,4 @@
 export CGO_ENABLED=0
 mkdir -p bin
 go build $@ -o bin/monokit
+strip bin/monokit

common/main.go

@@ -94,3 +94,10 @@ func IsInArray(a string, list []string) bool {
     }
     return false
 }
+
+func FileExists(filePath string) bool {
+    if _, err := os.Stat(filePath); os.IsNotExist(err) {
+        return false
+    }
+    return true
+}

go.mod

@@ -2,47 +2,92 @@ module github.com/monobilisim/monokit
 
 go 1.22.5
 
+require (
+	github.com/cert-manager/cert-manager v1.16.1
+	github.com/coreos/go-systemd/v22 v22.5.0
+	github.com/shirou/gopsutil/v4 v4.24.7
+	github.com/sirupsen/logrus v1.9.3
+	github.com/spf13/cobra v1.8.1
+	github.com/spf13/viper v1.19.0
+	k8s.io/api v0.31.1
+	k8s.io/apimachinery v0.31.1
+	k8s.io/client-go v0.31.1
+)
+
 require (
 	filippo.io/edwards25519 v1.1.0 // indirect
-	github.com/cespare/xxhash/v2 v2.2.0 // indirect
-	github.com/coreos/go-systemd/v22 v22.5.0 // indirect
+	github.com/cespare/xxhash/v2 v2.3.0 // indirect
+	github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc // indirect
 	github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f // indirect
+	github.com/emicklei/go-restful/v3 v3.12.1 // indirect
 	github.com/fsnotify/fsnotify v1.7.0 // indirect
+	github.com/fxamacker/cbor/v2 v2.7.0 // indirect
 	github.com/go-ini/ini v1.67.0 // indirect
+	github.com/go-logr/logr v1.4.2 // indirect
 	github.com/go-ole/go-ole v1.2.6 // indirect
+	github.com/go-openapi/jsonpointer v0.21.0 // indirect
+	github.com/go-openapi/jsonreference v0.21.0 // indirect
+	github.com/go-openapi/swag v0.23.0 // indirect
 	github.com/go-sql-driver/mysql v1.8.1 // indirect
 	github.com/godbus/dbus/v5 v5.0.4 // indirect
-	github.com/hashicorp/hcl v1.0.0 // indirect
+	github.com/gogo/protobuf v1.3.2 // indirect
+	github.com/golang/protobuf v1.5.4 // indirect
+	github.com/google/gnostic-models v0.6.8 // indirect
+	github.com/google/go-cmp v0.6.0 // indirect
+	github.com/google/gofuzz v1.2.0 // indirect
+	github.com/google/uuid v1.6.0 // indirect
+	github.com/hashicorp/hcl v1.0.1-vault-5 // indirect
+	github.com/imdario/mergo v0.3.16 // indirect
 	github.com/inconshreveable/mousetrap v1.1.0 // indirect
+	github.com/josharian/intern v1.0.0 // indirect
+	github.com/json-iterator/go v1.1.12 // indirect
 	github.com/lufia/plan9stats v0.0.0-20211012122336-39d0f177ccd0 // indirect
 	github.com/magiconair/properties v1.8.7 // indirect
+	github.com/mailru/easyjson v0.7.7 // indirect
 	github.com/mattn/go-runewidth v0.0.9 // indirect
 	github.com/michaelklishin/rabbit-hole/v2 v2.16.0 // indirect
 	github.com/mitchellh/mapstructure v1.5.0 // indirect
+	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
+	github.com/modern-go/reflect2 v1.0.2 // indirect
+	github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 // indirect
 	github.com/olekukonko/tablewriter v0.0.5 // indirect
 	github.com/pelletier/go-toml/v2 v2.2.2 // indirect
 	github.com/power-devops/perfstat v0.0.0-20210106213030-5aafc221ea8c // indirect
+	github.com/prometheus-community/pro-bing v0.4.1 // indirect
 	github.com/redis/go-redis/v9 v9.6.1 // indirect
 	github.com/sagikazarmark/locafero v0.4.0 // indirect
 	github.com/sagikazarmark/slog-shim v0.1.0 // indirect
-	github.com/shirou/gopsutil/v4 v4.24.7 // indirect
 	github.com/shoenig/go-m1cpu v0.1.6 // indirect
-	github.com/sirupsen/logrus v1.9.3 // indirect
 	github.com/sourcegraph/conc v0.3.0 // indirect
 	github.com/spf13/afero v1.11.0 // indirect
 	github.com/spf13/cast v1.6.0 // indirect
-	github.com/spf13/cobra v1.8.1 // indirect
 	github.com/spf13/pflag v1.0.5 // indirect
-	github.com/spf13/viper v1.19.0 // indirect
 	github.com/subosito/gotenv v1.6.0 // indirect
 	github.com/tklauser/go-sysconf v0.3.12 // indirect
 	github.com/tklauser/numcpus v0.6.1 // indirect
+	github.com/x448/float16 v0.8.4 // indirect
 	github.com/yusufpapurcu/wmi v1.2.4 // indirect
 	go.uber.org/atomic v1.9.0 // indirect
-	go.uber.org/multierr v1.9.0 // indirect
-	golang.org/x/exp v0.0.0-20230905200255-921286631fa9 // indirect
-	golang.org/x/sys v0.22.0 // indirect
-	golang.org/x/text v0.14.0 // indirect
+	go.uber.org/multierr v1.11.0 // indirect
+	golang.org/x/exp v0.0.0-20240719175910-8a7402abbf56 // indirect
+	golang.org/x/net v0.30.0 // indirect
+	golang.org/x/oauth2 v0.23.0 // indirect
+	golang.org/x/sync v0.8.0 // indirect
+	golang.org/x/sys v0.26.0 // indirect
+	golang.org/x/term v0.25.0 // indirect
+	golang.org/x/text v0.19.0 // indirect
+	golang.org/x/time v0.6.0 // indirect
+	google.golang.org/protobuf v1.34.2 // indirect
+	gopkg.in/inf.v0 v0.9.1 // indirect
 	gopkg.in/ini.v1 v1.67.0 // indirect
+	gopkg.in/yaml.v2 v2.4.0 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
+	k8s.io/apiextensions-apiserver v0.31.1 // indirect
+	k8s.io/klog/v2 v2.130.1 // indirect
+	k8s.io/kube-openapi v0.0.0-20240903163716-9e1beecbcb38 // indirect
+	k8s.io/utils v0.0.0-20240921022957-49e7df575cb6 // indirect
+	sigs.k8s.io/gateway-api v1.1.0 // indirect
+	sigs.k8s.io/json v0.0.0-20221116044647-bc3834ca7abd // indirect
+	sigs.k8s.io/structured-merge-diff/v4 v4.4.1 // indirect
+	sigs.k8s.io/yaml v1.4.0 // indirect
 )