├── .gitignore ├── Makefile ├── README.md ├── .travis.yml ├── kviator.go └── LICENSE /.gitignore: -------------------------------------------------------------------------------- 1 | # Compiled Object files, Static and Dynamic libs (Shared Objects) 2 | *.o 3 | *.a 4 | *.so 5 | 6 | # Folders 7 | _obj 8 | _test 9 | 10 | # Architecture specific extensions/prefixes 11 | *.[568vq] 12 | [568vq].out 13 | 14 | *.cgo1.go 15 | *.cgo2.c 16 | _cgo_defun.c 17 | _cgo_gotypes.go 18 | _cgo_export.* 19 | 20 | _testmain.go 21 | 22 | *.exe 23 | *.test 24 | *.prof 25 | 26 | /kviator 27 | /build 28 | /release 29 | -------------------------------------------------------------------------------- /Makefile: -------------------------------------------------------------------------------- 1 | APP_NAME = kviator 2 | VERSION = latest 3 | 4 | all: package 5 | 6 | clean: 7 | @echo "--> Cleaning build" 8 | @rm -rf ./build 9 | @rm -rf ./release 10 | 11 | prepare: 12 | @echo "--> Preparing build" 13 | @mkdir -p build/bin/`go env GOOS`/`go env GOARCH` 14 | @mkdir -p build/test 15 | @mkdir -p build/doc 16 | @mkdir -p build/zip 17 | 18 | format: 19 | @echo "--> Formatting source code" 20 | @go fmt ./... 21 | 22 | deps: 23 | @echo "--> Getting dependencies" 24 | @go get -d -v ./... 25 | 26 | test: prepare format deps 27 | @echo "--> Testing application" 28 | @go test -outputdir build/test ./... 29 | 30 | build: prepare format deps 31 | @echo "--> Building local application" 32 | @go build -o build/bin/`go env GOOS`/`go env GOARCH`/${VERSION}/${APP_NAME} -ldflags "-X main.version=${VERSION}" -v . 33 | 34 | package: build 35 | @echo "--> Packaging application" 36 | @zip -vj build/zip/${APP_NAME}-${VERSION}-`go env GOOS`-`go env GOARCH`.zip build/bin/`go env GOOS`/`go env GOARCH`/${VERSION}/${APP_NAME} 37 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # kviator 2 | kviator is a small tool to manage data across distributed key value stores (consul, etcd) 3 | 4 | ## Build 5 | 6 | ``` 7 | $ go get github.com/AcalephStorage/kviator 8 | $ cd $GOPATH/src/github.com/AcalephStorage/kviator 9 | $ go build 10 | ``` 11 | 12 | ## Running 13 | 14 | ``` 15 | $ ./kviator --help 16 | 17 | for consul: 18 | 19 | $ ./kviator --kvstore=consul --client=localhost:8500 put hello world 20 | $ ./kviator --kvstore=consul --client=localhost:8500 get hello 21 | #=> world 22 | ``` 23 | 24 | ## TLS support 25 | 26 | ``` 27 | $ ./kviator --kvstore=etcd --client=127.0.0.1:4001 \ 28 | --ca-cert=/path/to/ssl/ca-cert.pem \ 29 | --client-cert=/path/to/ssl/client-cert.pem \ 30 | --client-key=/path/to/ssl/client-key.pem \ 31 | put hello world 32 | 33 | $ ./kviator --kvstore=etcd --client=127.0.0.1:4001 \ 34 | --ca-cert=/path/to/ssl/ca-cert.pem \ 35 | --client-cert=/path/to/ssl/client-cert.pem \ 36 | --client-key=/path/to/ssl/client-key.pem \ 37 | get hello 38 | 39 | $ world 40 | 41 | ``` 42 | 43 | ## TODO 44 | 45 | - Better README 46 | - Needs docs -------------------------------------------------------------------------------- /.travis.yml: -------------------------------------------------------------------------------- 1 | language: go 2 | 3 | go: 4 | - 1.6 5 | 6 | before_deploy: 7 | - GOOS=linux GOARCH=386 make VERSION=$TRAVIS_TAG package 8 | - GOOS=linux GOARCH=amd64 make VERSION=$TRAVIS_TAG package 9 | - GOOS=darwin GOARCH=amd64 make VERSION=$TRAVIS_TAG package 10 | - GOOS=freebsd GOARCH=amd64 make VERSION=$TRAVIS_TAG package 11 | 12 | deploy: 13 | provider: releases 14 | api_key: 15 | secure: Hol0HR6YQrU6eKfrg242jrKVkI7ZSE4+0lF0irIGoWIC2fqW7KUtTcDGdACwZB3V8EAxWpzAqtGl33QZYig3FjfdhELYUV0hG+RBbjCEfmm35ZBgiirUR8aDixtVakmJQg95sMoFGmbT50InaRb4fY2SGJuhHlrkdygq/T3XlieBcN47OpQpPdzvNJ/EIUAxC/fFu44R8NK/rwhL1/9mW6Sq2cEgI1s2iKqbXd7Hp7BD5ZhPlkWKQyTBHKqYb6xoCNnYhijZhv/6CVHGzeQvJ64O93OrL/HnYjbGd+WwJ6/Z4D18VNbAGMr2sLIzO+q6f8tssqtxaxSyvGWIAqT5KFcUamAkHC0eYZxXYi8pVIsnBmW3lLAcBC9WfzEeN3HMbp6gOCLAbnuLuBL2wyW0DVSBoqCAFDjIH/omJ3Fy6OwO910TCW3POcTh+uN5o0lfQgceOQXLqArC1KstgHEz8LJaoQsJeY7YEmAfci4CKU3eT4wZJ9IOYwWkGjL1MTkPY+iAMMee7TGLzZot0RsikpeB9Qz2GIpihsSWOVyVLITgDXJTE+rVPn4wiWifVtv5nI2ARFlD7fq5NZbqjifAjpRk5Vpy26VYZGxNMznx5CXvtullskA821iodNWtLtmvKJcYHaGAn4uWvcggGDObf1lmS3rBkui1LDRDGpkY8Aw= 16 | files: 17 | - build/zip/kviator-$TRAVIS_TAG-linux-386.zip 18 | - build/zip/kviator-$TRAVIS_TAG-linux-amd64.zip 19 | - build/zip/kviator-$TRAVIS_TAG-darwin-amd64.zip 20 | - build/zip/kviator-$TRAVIS_TAG-freebsd-amd64.zip 21 | skip_cleanup: true 22 | on: 23 | repo: AcalephStorage/kviator 24 | tags: true 25 | -------------------------------------------------------------------------------- /kviator.go: -------------------------------------------------------------------------------- 1 | package main 2 | 3 | import ( 4 | "flag" 5 | "fmt" 6 | "os" 7 | "strings" 8 | "time" 9 | 10 | "encoding/base64" 11 | "io/ioutil" 12 | 13 | "github.com/coreos/etcd/pkg/transport" 14 | "github.com/docker/libkv" 15 | "github.com/docker/libkv/store" 16 | "github.com/docker/libkv/store/consul" 17 | "github.com/docker/libkv/store/etcd" 18 | "github.com/docker/libkv/store/zookeeper" 19 | ) 20 | 21 | const helpText = ` 22 | kviator is a cli client for accessing consul, etcd, or zookeper KV. 23 | 24 | Syntax: 25 | 26 | kviator --kvstore [consul|etcd|zzookeper] --client [] 27 | 28 | Options: 29 | --kvstore The kvstore to connect to. Can be consul, etcd, or zookeper. 30 | --client The url of the kvstore. (eg. localhost:8500) 31 | --show-value Show the value when using the list command. 32 | --ca-cert The CA certificate to use for TLS 33 | --client-cert The Client cert to use for TLS authentication 34 | --client-key The client key to use for TLS authentication 35 | --binary Stores/Retrieves values as binary 36 | 37 | Commands: 38 | put put a key value pair in the kvstore 39 | get retrieve a key value pair from the kvstore 40 | del removes a key value pair from the kvstore 41 | deltree removes an entire tree structure in the kvstore 42 | list list all kv of a given subtree/key. 43 | cas put a key value pair in the keystore only when it's empty 44 | exists returns true when key value pair exists 45 | 46 | Arguments: 47 | key The key. Required for all commands. 48 | val The value. required for put and cas. 49 | 50 | Note: 51 | 52 | kviator can also read the value from Stdin. The syntax would look like this: 53 | 54 | cmd | kviator ... put - 55 | kviator ... put - < val.file 56 | 57 | The - character is necessary to force kviator to read from Stdin. Without the -, Stdin 58 | is ignored. 59 | ` 60 | 61 | var ( 62 | appName = "kviator" 63 | version = "dev" 64 | ) 65 | 66 | var ( 67 | kvstore string 68 | client string 69 | caCert string 70 | clientCert string 71 | clientKey string 72 | showValue bool 73 | binary bool 74 | ) 75 | 76 | func init() { 77 | flag.StringVar(&kvstore, "kvstore", "", "the kvstore to connect to. Can be consul, etcd, or zookeper.") 78 | flag.StringVar(&client, "client", "", "the client IP address") 79 | flag.BoolVar(&showValue, "show-value", false, "show the value of the listed keys") 80 | flag.StringVar(&caCert, "ca-cert", "", "the path to the CA certificate to use for TLS") 81 | flag.StringVar(&clientCert, "client-cert", "", "the path to the client certificate to use for TLS") 82 | flag.StringVar(&clientKey, "client-key", "", "the path to the client key to use for TLS") 83 | flag.BoolVar(&binary, "binary", false, "store/retrieve binary values") 84 | flag.Usage = help 85 | flag.Parse() 86 | } 87 | 88 | func main() { 89 | switch flag.Arg(0) { 90 | case "put": 91 | key := flag.Arg(1) 92 | val := strings.Join(flag.Args()[2:], " ") 93 | byteVal := parseVal(val) 94 | save(key, byteVal) 95 | case "get": 96 | key := flag.Arg(1) 97 | retrieve(key) 98 | case "del": 99 | key := flag.Arg(1) 100 | delete(key) 101 | case "deltree": 102 | key := flag.Arg(1) 103 | deleteTree(key) 104 | case "list": 105 | key := flag.Arg(1) 106 | list(key) 107 | case "cas": 108 | key := flag.Arg(1) 109 | val := strings.Join(flag.Args()[2:], " ") 110 | byteVal := parseVal(val) 111 | checkAndSave(key, byteVal) 112 | case "exists": 113 | key := flag.Arg(1) 114 | keyExists(key) 115 | default: 116 | help() 117 | os.Exit(8) 118 | } 119 | } 120 | 121 | func parseVal(arg string) []byte { 122 | arg = strings.TrimSpace(arg) 123 | if arg == "-" { 124 | stat, err := os.Stdin.Stat() 125 | if err == nil { 126 | if (stat.Mode() & os.ModeCharDevice) == 0 { 127 | in, err := ioutil.ReadAll(os.Stdin) 128 | if err != nil { 129 | fmt.Fprintln(os.Stderr, err) 130 | os.Exit(9) 131 | } 132 | if binary { 133 | lenOut := base64.URLEncoding.EncodedLen(len(in)) 134 | out := make([]byte, lenOut) 135 | base64.URLEncoding.Encode(out, in) 136 | return out 137 | } 138 | inStr := strings.TrimSuffix(string(in), "\n") 139 | inStr = strings.TrimSpace(inStr) 140 | return []byte(inStr) 141 | } 142 | } 143 | } 144 | return []byte(arg) 145 | } 146 | 147 | func kvstoreConn(kvstore, client string) store.Store { 148 | var backend store.Backend 149 | switch kvstore { 150 | case "consul": 151 | backend = store.CONSUL 152 | consul.Register() 153 | case "etcd": 154 | backend = store.ETCD 155 | etcd.Register() 156 | case "zookeper": 157 | backend = store.ZK 158 | zookeeper.Register() 159 | } 160 | 161 | var cfg store.Config 162 | 163 | if caCert != "" && clientCert != "" && clientKey != "" { 164 | var tlsInfo = transport.TLSInfo{ 165 | CAFile: caCert, 166 | CertFile: clientCert, 167 | KeyFile: clientKey, 168 | TrustedCAFile: caCert, 169 | ClientCertAuth: true, 170 | } 171 | t, err := transport.NewTransport(tlsInfo, 10*time.Second) 172 | if err != nil { 173 | fmt.Fprintln(os.Stderr, err) 174 | os.Exit(1) 175 | } 176 | 177 | cfg = store.Config{ 178 | ConnectionTimeout: 10 * time.Second, 179 | TLS: t.TLSClientConfig, 180 | } 181 | } else { 182 | cfg = store.Config{ 183 | ConnectionTimeout: 10 * time.Second, 184 | } 185 | } 186 | 187 | kv, err := libkv.NewStore( 188 | backend, 189 | []string{client}, 190 | &cfg, 191 | ) 192 | if err != nil { 193 | fmt.Fprintln(os.Stderr, err) 194 | os.Exit(1) 195 | } 196 | return kv 197 | } 198 | 199 | func save(key string, val []byte) { 200 | kv := kvstoreConn(kvstore, client) 201 | err := kv.Put(key, val, nil) 202 | if err != nil { 203 | fmt.Fprintln(os.Stderr, err) 204 | os.Exit(2) 205 | } 206 | } 207 | 208 | func retrieve(key string) { 209 | kv := kvstoreConn(kvstore, client) 210 | kvPair, err := kv.Get(key) 211 | if err != nil { 212 | fmt.Fprintln(os.Stderr, err) 213 | os.Exit(3) 214 | } else { 215 | in := kvPair.Value 216 | if binary { 217 | lenOut := base64.URLEncoding.DecodedLen(len(in)) 218 | out := make([]byte, lenOut) 219 | base64.URLEncoding.Decode(out, in) 220 | if _, err := os.Stdout.Write(out); err != nil { 221 | fmt.Fprintln(os.Stderr, err) 222 | os.Exit(12) 223 | } 224 | return 225 | } 226 | fmt.Fprintln(os.Stdout, string(in)) 227 | } 228 | } 229 | 230 | func delete(key string) { 231 | kv := kvstoreConn(kvstore, client) 232 | err := kv.Delete(key) 233 | if err != nil { 234 | fmt.Fprintln(os.Stderr, err) 235 | os.Exit(4) 236 | } 237 | } 238 | 239 | func deleteTree(key string) { 240 | if key == "" { 241 | fmt.Fprintln(os.Stderr, "Please specify subtree. To delete all, use /.") 242 | os.Exit(11) 243 | } 244 | if key == "/" { 245 | key = "" 246 | } 247 | kv := kvstoreConn(kvstore, client) 248 | err := kv.DeleteTree(key) 249 | if err != nil { 250 | fmt.Fprintln(os.Stderr, err) 251 | os.Exit(10) 252 | } 253 | } 254 | 255 | func list(key string) { 256 | kv := kvstoreConn(kvstore, client) 257 | kvPairs, err := kv.List(key) 258 | if err != nil { 259 | fmt.Fprintln(os.Stderr, err) 260 | os.Exit(11) 261 | } 262 | for _, kvPair := range kvPairs { 263 | k := kvPair.Key 264 | v := kvPair.Value 265 | if showValue { 266 | fmt.Fprintf(os.Stdout, "%s=", k) 267 | os.Stdout.Write(v) 268 | fmt.Println() 269 | } else { 270 | fmt.Fprintln(os.Stdout, k) 271 | } 272 | 273 | } 274 | } 275 | 276 | func checkAndSave(key string, val []byte) { 277 | kv := kvstoreConn(kvstore, client) 278 | _, err := kv.Get(key) 279 | if err != nil { 280 | err := kv.Put(key, val, nil) 281 | if err != nil { 282 | fmt.Fprintln(os.Stderr, err) 283 | os.Exit(6) 284 | } 285 | } else { 286 | fmt.Fprintln(os.Stderr, "key is already set") 287 | os.Exit(5) 288 | } 289 | } 290 | 291 | func keyExists(key string) { 292 | kv := kvstoreConn(kvstore, client) 293 | _, err := kv.Get(key) 294 | if err != nil { 295 | fmt.Fprintln(os.Stderr, "false") 296 | os.Exit(7) 297 | } else { 298 | fmt.Fprintln(os.Stdout, "true") 299 | } 300 | } 301 | 302 | func help() { 303 | fmt.Fprintf(os.Stdout, "\n\t%s %s\n\n%s\n", appName, version, helpText) 304 | } 305 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | Apache License 2 | Version 2.0, January 2004 3 | http://www.apache.org/licenses/ 4 | 5 | TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 6 | 7 | 1. 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