Design HWSC CLI App

.gitignore

@@ -125,3 +125,6 @@ int/hwsc-user-svc/psql_test_create.sh
 
 
 # End of https://www.gitignore.io/api/macos,jetbrains+all
+
+# Unit test result
+cmd/coverage.out

cmd/es.go

@@ -0,0 +1,47 @@
+package cmd
+
+import (
+	"crypto/tls"
+	"fmt"
+	es7 "github.com/elastic/go-elasticsearch/v7"
+	"github.com/spf13/cobra"
+	"net"
+	"net/http"
+	"time"
+)
+
+var (
+	cfg = es7.Config{
+		// TODO: move these environment variables
+		Addresses: []string{
+			"http://localhost:9200",
+			"http://localhost:9201",
+		},
+		Username: "foo",
+		Password: "bar",
+		Transport: &http.Transport{
+			MaxIdleConnsPerHost:   10,
+			ResponseHeaderTimeout: time.Second,
+			DialContext:           (&net.Dialer{Timeout: time.Second}).DialContext,
+			TLSClientConfig: &tls.Config{
+				MinVersion: tls.VersionTLS11,
+			},
+		},
+	}
+	es7Client *es7.Client
+	esCmd     = &cobra.Command{
+		Use:   "es",
+		Short: "ElasticSearch command line tool",
+		Long:  "Combine this command with a sub command",
+		Run:   func(cmd *cobra.Command, args []string) {},
+	}
+)
+
+func init() {
+	var err error
+	es7Client, err = es7.NewClient(cfg)
+	if err != nil {
+		fmt.Println(err)
+	}
+	rootCmd.AddCommand(esCmd)
+}

cmd/es_health.go

@@ -0,0 +1,25 @@
+package cmd
+
+import (
+	"fmt"
+	"github.com/spf13/cobra"
+)
+
+var (
+	esHealthCmd = &cobra.Command{
+		Use:   "health",
+		Short: "Test ElasticSearch health status",
+		Long:  "Run this command to test health status of ElasticSearch",
+		Run: func(c *cobra.Command, args []string) {
+			res, err := es7Client.Cat.Health()
+			if err != nil {
+				fmt.Println(err)
+			}
+			fmt.Println(res)
+		},
+	}
+)
+
+func init() {
+	esCmd.AddCommand(esHealthCmd)
+}

cmd/root.go

@@ -7,30 +7,16 @@ import (
 )
 
 var rootCmd = &cobra.Command{
-	Use:   "hugo",
-	Short: "Hugo is a very fast static site generator",
-	Long: `A Fast and Flexible Static Site Generator built with
-                love by spf13 and friends in Go.
-                Complete documentation is available at http://hugo.spf13.com`,
+	Use:   "hwsc-dev-ops",
+	Short: "Humpback Whale Social Call command line tool",
+	Long:  "For more information, select following available commands",
 	Run: func(cmd *cobra.Command, args []string) {
-		fmt.Println("TODO")
+		fmt.Println("For more information on a specific command, type help command-name")
 	},
 }
 
-var versionCmd = &cobra.Command{
-	Use:   "version",
-	Short: "Print the version number of Hugo",
-	Long:  `All software has versions. This is Hugo's`,
-	Run: func(cmd *cobra.Command, args []string) {
-		fmt.Println("Hugo Static Site Generator v0.9 -- HEAD")
-	},
-}
-
-func init() {
-	rootCmd.AddCommand(versionCmd)
-}
-
-// Execute todo
+// Execute should be run on the root for clarity,
+// though it can be called on any command
 func Execute() {
 	if err := rootCmd.Execute(); err != nil {
 		fmt.Println(err)

cmd/version.go

@@ -0,0 +1,26 @@
+package cmd
+
+import (
+	"fmt"
+	"github.com/spf13/cobra"
+)
+
+var (
+	versionCmd = &cobra.Command{
+		Use:   "version",
+		Short: "Print the version number of HWSC service and ElasticSearch",
+		Long:  "Run this command to display version number",
+		Run: func(cmd *cobra.Command, args []string) {
+			fmt.Println("HWSC version: v0.0.0")
+			res, err := es7Client.Info()
+			if err != nil {
+				fmt.Println(err)
+			}
+			fmt.Println("ElasticSearch version: ", res)
+		},
+	}
+)
+
+func init() {
+	rootCmd.AddCommand(versionCmd)
+}

go.mod

@@ -5,6 +5,7 @@ go 1.12
 require (
 	github.com/coreos/etcd v3.3.13+incompatible // indirect
 	github.com/coreos/go-semver v0.3.0 // indirect
+	github.com/elastic/go-elasticsearch/v7 v7.1.1
 	github.com/magiconair/properties v1.8.1 // indirect
 	github.com/pelletier/go-toml v1.4.0 // indirect
 	github.com/russross/blackfriday v2.0.0+incompatible // indirect
@@ -13,9 +14,10 @@ require (
 	github.com/spf13/jwalterweatherman v1.1.0 // indirect
 	github.com/stretchr/objx v0.2.0 // indirect
 	golang.org/x/crypto v0.0.0-20190513172903-22d7a77e9e5f // indirect
+	golang.org/x/lint v0.0.0-20190409202823-959b441ac422 // indirect
 	golang.org/x/net v0.0.0-20190522155817-f3200d17e092 // indirect
-	golang.org/x/sys v0.0.0-20190523142557-0e01d883c5c5 // indirect
+	golang.org/x/sys v0.0.0-20190528183647-3626398d7749 // indirect
 	golang.org/x/text v0.3.2 // indirect
-	golang.org/x/tools v0.0.0-20190523174634-38d8bcfa38af // indirect
+	golang.org/x/tools v0.0.0-20190529010454-aa71c3f32488 // indirect
 	gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127 // indirect
 )

go.sum

@@ -8,10 +8,14 @@ github.com/coreos/go-semver v0.3.0/go.mod h1:nnelYz7RCh+5ahJtPPxZlU+153eP4D4r3Ee
 github.com/cpuguy83/go-md2man v1.0.10/go.mod h1:SmD6nW6nTyfqj6ABTjUi3V3JVMnlJmwcJI5acqYI6dE=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/elastic/go-elasticsearch/v7 v7.1.1 h1:cTeK9FOWH1i20JJgpeqZyk+xqKoxDAm3K1ouv6Ko/MQ=
+github.com/elastic/go-elasticsearch/v7 v7.1.1/go.mod h1:OJ4wdbtDNk5g503kvlHLyErCgQwwzmDtaFC4XyOxXA4=
+github.com/elastic/go-elasticsearch/v7 v7.1.2-0.20190522124710-709f5bfb5561/go.mod h1:OJ4wdbtDNk5g503kvlHLyErCgQwwzmDtaFC4XyOxXA4=
 github.com/fsnotify/fsnotify v1.4.7 h1:IXs+QLmnXW2CcXuY+8Mzv/fWEsPGWxqefPtCP5CnV9I=
 github.com/fsnotify/fsnotify v1.4.7/go.mod h1:jwhsz4b93w/PPRr/qN1Yymfu8t87LnFCMoQvtojpjFo=
 github.com/hashicorp/hcl v1.0.0 h1:0Anlzjpi4vEasTeNFn2mLJgTSwt0+6sfsiTG8qcWGx4=
 github.com/hashicorp/hcl v1.0.0/go.mod h1:E5yfLk+7swimpb2L/Alb/PJmXilQ/rhwaUYs4T20WEQ=
+github.com/inconshreveable/mousetrap v1.0.0 h1:Z8tu5sraLXCXIcARxBp/8cbvlwVa7Z1NHg9XEKhtSvM=
 github.com/inconshreveable/mousetrap v1.0.0/go.mod h1:PxqpIevigyE2G7u3NXJIT2ANytuPF1OarO4DADm73n8=
 github.com/magiconair/properties v1.8.0/go.mod h1:PppfXfuXeibc/6YijjN8zIbojt8czPbwD3XqdrwzmxQ=
 github.com/magiconair/properties v1.8.1 h1:ZC2Vc7/ZFkGmsVC9KvOjumD+G5lXy2RtTKyzRKO2BQ4=
@@ -49,6 +53,8 @@ github.com/xordataexchange/crypt v0.0.3-0.20170626215501-b2862e3d0a77/go.mod h1:
 golang.org/x/crypto v0.0.0-20181203042331-505ab145d0a9/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/crypto v0.0.0-20190513172903-22d7a77e9e5f/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
+golang.org/x/lint v0.0.0-20190409202823-959b441ac422 h1:QzoH/1pFpZguR8NrRHLcO6jKqfv2zpuSqZLgdm7ZmjI=
+golang.org/x/lint v0.0.0-20190409202823-959b441ac422/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
 golang.org/x/net v0.0.0-20190311183353-d8887717615a/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
 golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
 golang.org/x/net v0.0.0-20190522155817-f3200d17e092/go.mod h1:HSz+uSET+XFnRR8LxR5pz3Of3rY3CfYBVs4xY44aLks=
@@ -58,11 +64,15 @@ golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5h
 golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190523142557-0e01d883c5c5 h1:sM3evRHxE/1RuMe1FYAL3j7C7fUfIjkbE+NiDAYUF8U=
 golang.org/x/sys v0.0.0-20190523142557-0e01d883c5c5/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20190528183647-3626398d7749/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.2 h1:tW2bmiBqwgJj/UpqtC8EpXEZVYOwU0yG4iWbprSVAcs=
 golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk=
 golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
+golang.org/x/tools v0.0.0-20190311212946-11955173bddd/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
 golang.org/x/tools v0.0.0-20190523174634-38d8bcfa38af/go.mod h1:RgjU9mgBXZiqYHBnxXauZ1Gv1EHHAz9KjViQ78xBX0Q=
+golang.org/x/tools v0.0.0-20190529010454-aa71c3f32488 h1:vBgi/AgEje1rNScpWGJqe+RPHHZvBqrk9UH+LOXWN6Q=
+golang.org/x/tools v0.0.0-20190529010454-aa71c3f32488/go.mod h1:RgjU9mgBXZiqYHBnxXauZ1Gv1EHHAz9KjViQ78xBX0Q=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/yaml.v2 v2.2.2 h1:ZCJp+EgiOT7lHqUV2J862kp8Qj64Jo6az82+3Td9dZw=

main.go

@@ -6,4 +6,4 @@ import (
 
 func main() {
 	cmd.Execute()
-}
+}