dns check init

.gitignore

@@ -0,0 +1,9 @@
+app.json
+app2.json
+cloudbuild.yaml
+dist/
+dns-check
+deployment.yaml
+Makefile
+bin/
+ignored.json

.goreleaser.yml

@@ -0,0 +1,89 @@
+# This is an example .goreleaser.yml file with some sane defaults.
+# Make sure to check the documentation at https://goreleaser.com
+
+project_name: dns-check
+env:
+  - GO111MODULE=on
+
+before:
+  hooks:
+    # You may remove this if you don't use go modules.
+    - go mod tidy
+    # you may remove this if you don't need go generate
+    - go generate ./...
+builds:
+  - env:
+      - CGO_ENABLED=0
+    binary: dns-check
+    goos:
+      - linux
+      - windows
+      - darwin
+    goarch:
+      - amd64
+      - arm64
+archives:
+  - replacements:
+      darwin: Darwin
+      linux: Linux
+      windows: Windows
+      amd64: x86_64
+checksum:
+  name_template: "checksums.txt"
+snapshot:
+  name_template: "{{ incpatch .Version }}-next"
+changelog:
+  sort: asc
+  filters:
+    exclude:
+      - "^docs:"
+      - "^test:"
+dockers:
+  - image_templates:
+      - ghcr.io/chandanpasunoori/{{ .ProjectName }}:{{ .Version }}-amd64
+      - docker.io/chandanpasunoori/{{ .ProjectName }}:{{ .Version }}-amd64
+    dockerfile: Dockerfile
+    use: buildx
+    build_flag_templates:
+      - --platform=linux/amd64
+      - --label=org.opencontainers.image.title={{ .ProjectName }}
+      - --label=org.opencontainers.image.description={{ .ProjectName }}
+      - --label=org.opencontainers.image.url=https://github.com/chandanpasunoori/{{ .ProjectName }}
+      - --label=org.opencontainers.image.source=https://github.com/chandanpasunoori/{{ .ProjectName }}
+      - --label=org.opencontainers.image.version={{ .Version }}
+      - --label=org.opencontainers.image.created={{ time "2006-01-02T15:04:05Z07:00" }}
+      - --label=org.opencontainers.image.revision={{ .FullCommit }}
+      - --label=org.opencontainers.image.licenses=MIT
+  - image_templates:
+      - ghcr.io/chandanpasunoori/{{ .ProjectName }}:{{ .Version }}-arm64v8
+      - docker.io/chandanpasunoori/{{ .ProjectName }}:{{ .Version }}-arm64v8
+    goarch: arm64
+    dockerfile: Dockerfile
+    use: buildx
+    build_flag_templates:
+      - --platform=linux/arm64/v8
+      - --label=org.opencontainers.image.title={{ .ProjectName }}
+      - --label=org.opencontainers.image.description={{ .ProjectName }}
+      - --label=org.opencontainers.image.url=https://github.com/chandanpasunoori/{{ .ProjectName }}
+      - --label=org.opencontainers.image.source=https://github.com/chandanpasunoori/{{ .ProjectName }}
+      - --label=org.opencontainers.image.version={{ .Version }}
+      - --label=org.opencontainers.image.created={{ time "2006-01-02T15:04:05Z07:00" }}
+      - --label=org.opencontainers.image.revision={{ .FullCommit }}
+      - --label=org.opencontainers.image.licenses=MIT
+docker_manifests:
+  - name_template: ghcr.io/chandanpasunoori/{{ .ProjectName }}:{{ .Version }}
+    image_templates:
+      - ghcr.io/chandanpasunoori/{{ .ProjectName }}:{{ .Version }}-amd64
+      - ghcr.io/chandanpasunoori/{{ .ProjectName }}:{{ .Version }}-arm64v8
+  - name_template: ghcr.io/chandanpasunoori/{{ .ProjectName }}:latest
+    image_templates:
+      - ghcr.io/chandanpasunoori/{{ .ProjectName }}:{{ .Version }}-amd64
+      - ghcr.io/chandanpasunoori/{{ .ProjectName }}:{{ .Version }}-arm64v8
+  - name_template: docker.io/chandanpasunoori/{{ .ProjectName }}:{{ .Version }}
+    image_templates:
+      - docker.io/chandanpasunoori/{{ .ProjectName }}:{{ .Version }}-amd64
+      - docker.io/chandanpasunoori/{{ .ProjectName }}:{{ .Version }}-arm64v8
+  - name_template: docker.io/chandanpasunoori/{{ .ProjectName }}:latest
+    image_templates:
+      - docker.io/chandanpasunoori/{{ .ProjectName }}:{{ .Version }}-amd64
+      - docker.io/chandanpasunoori/{{ .ProjectName }}:{{ .Version }}-arm64v8

Dockerfile

@@ -0,0 +1,9 @@
+FROM alpine:latest as alpine_builder
+RUN apk --no-cache add ca-certificates
+RUN apk --no-cache add tzdata
+
+FROM scratch
+COPY --from=alpine_builder /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/
+COPY --from=alpine_builder /usr/share/zoneinfo /usr/share/zoneinfo
+ENTRYPOINT ["/dns-check"]
+COPY dns-check /

cmd/root.go

@@ -0,0 +1,73 @@
+package cmd
+
+import (
+	"encoding/json"
+	"io/ioutil"
+	"os"
+
+	"github.com/chandanpasunoori/dns-check/pkg"
+	log "github.com/sirupsen/logrus"
+	"github.com/spf13/cobra"
+	"github.com/spf13/cobra/doc"
+)
+
+const (
+	version = "0.0.1"
+)
+
+var verbose bool
+var configDoc string
+var config pkg.Config
+
+var rootCmd = &cobra.Command{
+	Use:     "dns-check",
+	Short:   "Built to ease process of checking list domains dns pointing periodically and alert",
+	Version: version,
+	Run: func(cmd *cobra.Command, args []string) {
+		if verbose {
+			logger.SetLevel(log.DebugLevel)
+		}
+		configBytes, err := ioutil.ReadFile(configDoc)
+		if err != nil {
+			logger.WithError(err).Errorf("config file not found at " + configDoc)
+			os.Exit(1)
+		}
+		if err := json.Unmarshal(configBytes, &config); err != nil {
+			logger.WithError(err).Errorf("error parsing config")
+			os.Exit(1)
+		}
+		logger.Info(
+			"dns-check " + version + " is ready to check domain",
+		)
+		pkg.CheckDNSTarget(config)
+	},
+}
+
+var logger = log.Logger{
+	Out: os.Stdout,
+	Formatter: &log.JSONFormatter{
+		TimestampFormat: "2006-01-02 15:04:05.000",
+	},
+	Level: log.InfoLevel,
+}
+
+func Execute() {
+	//@todo: provide usage documentation with config examples
+	if genDoc := os.Getenv("GEN_DOC"); genDoc == "true" {
+		err := doc.GenMarkdownTree(rootCmd, "./docs")
+		if err != nil {
+			log.Errorf("Failed generating docs: %v", err)
+		}
+	}
+
+	if err := rootCmd.Execute(); err != nil {
+		logger.WithError(err).Errorf("error executing command")
+		os.Exit(1)
+	}
+}
+
+func init() {
+	rootCmd.PersistentFlags().BoolVarP(&verbose, "verbose", "v", false, "verbose mode")
+	rootCmd.PersistentFlags().StringVarP(&configDoc, "config", "c", "app.json", "job configuration file path")
+	_ = rootCmd.MarkFlagRequired("config")
+}

go.mod

@@ -0,0 +1,20 @@
+module github.com/chandanpasunoori/dns-check
+
+go 1.17
+
+require (
+	github.com/aws/aws-sdk-go v1.41.4
+	github.com/sirupsen/logrus v1.8.1
+	github.com/spf13/cobra v1.2.1
+)
+
+require (
+	github.com/cpuguy83/go-md2man/v2 v2.0.0 // indirect
+	github.com/inconshreveable/mousetrap v1.0.0 // indirect
+	github.com/jmespath/go-jmespath v0.4.0 // indirect
+	github.com/russross/blackfriday/v2 v2.0.1 // indirect
+	github.com/shurcooL/sanitized_anchor_name v1.0.0 // indirect
+	github.com/spf13/pflag v1.0.5 // indirect
+	golang.org/x/sys v0.0.0-20210823070655-63515b42dcdf // indirect
+	gopkg.in/yaml.v2 v2.4.0 // indirect
+)