lib/config/load_test.go

   1 // Copyright (C) The Arvados Authors. All rights reserved.
   2 //
   3 // SPDX-License-Identifier: AGPL-3.0
   4
   5 package config
   6
   7 import (
   8         "bytes"
   9         "fmt"
  10         "io"
  11         "io/ioutil"
  12         "os"
  13         "os/exec"
  14         "reflect"
  15         "strings"
  16         "testing"
  17
  18         "git.curoverse.com/arvados.git/sdk/go/arvados"
  19         "git.curoverse.com/arvados.git/sdk/go/ctxlog"
  20         "github.com/ghodss/yaml"
  21         "github.com/sirupsen/logrus"
  22         check "gopkg.in/check.v1"
  23 )
  24
  25 // Gocheck boilerplate
  26 func Test(t *testing.T) {
  27         check.TestingT(t)
  28 }
  29
  30 var _ = check.Suite(&LoadSuite{})
  31
  32 // Return a new Loader that reads cluster config from configdata
  33 // (instead of the usual default /etc/arvados/config.yml), and logs to
  34 // logdst or (if that's nil) c.Log.
  35 func testLoader(c *check.C, configdata string, logdst io.Writer) *Loader {
  36         logger := ctxlog.TestLogger(c)
  37         if logdst != nil {
  38                 lgr := logrus.New()
  39                 lgr.Out = logdst
  40                 logger = lgr
  41         }
  42         ldr := NewLoader(bytes.NewBufferString(configdata), logger)
  43         ldr.Path = "-"
  44         return ldr
  45 }
  46
  47 type LoadSuite struct{}
  48
  49 func (s *LoadSuite) TestEmpty(c *check.C) {
  50         cfg, err := testLoader(c, "", nil).Load()
  51         c.Check(cfg, check.IsNil)
  52         c.Assert(err, check.ErrorMatches, `config does not define any clusters`)
  53 }
  54
  55 func (s *LoadSuite) TestNoConfigs(c *check.C) {
  56         cfg, err := testLoader(c, `Clusters: {"z1111": {}}`, nil).Load()
  57         c.Assert(err, check.IsNil)
  58         c.Assert(cfg.Clusters, check.HasLen, 1)
  59         cc, err := cfg.GetCluster("z1111")
  60         c.Assert(err, check.IsNil)
  61         c.Check(cc.ClusterID, check.Equals, "z1111")
  62         c.Check(cc.API.MaxRequestAmplification, check.Equals, 4)
  63         c.Check(cc.API.MaxItemsPerResponse, check.Equals, 1000)
  64 }
  65
  66 func (s *LoadSuite) TestMungeLegacyConfigArgs(c *check.C) {
  67         f, err := ioutil.TempFile("", "")
  68         c.Check(err, check.IsNil)
  69         defer os.Remove(f.Name())
  70         io.WriteString(f, "Debug: true\n")
  71         oldfile := f.Name()
  72
  73         f, err = ioutil.TempFile("", "")
  74         c.Check(err, check.IsNil)
  75         defer os.Remove(f.Name())
  76         io.WriteString(f, "Clusters: {aaaaa: {}}\n")
  77         newfile := f.Name()
  78
  79         for _, trial := range []struct {
  80                 argsIn  []string
  81                 argsOut []string
  82         }{
  83                 {
  84                         []string{"-config", oldfile},
  85                         []string{"-old-config", oldfile},
  86                 },
  87                 {
  88                         []string{"-config=" + oldfile},
  89                         []string{"-old-config=" + oldfile},
  90                 },
  91                 {
  92                         []string{"-config", newfile},
  93                         []string{"-config", newfile},
  94                 },
  95                 {
  96                         []string{"-config=" + newfile},
  97                         []string{"-config=" + newfile},
  98                 },
  99                 {
 100                         []string{"-foo", oldfile},
 101                         []string{"-foo", oldfile},
 102                 },
 103                 {
 104                         []string{"-foo=" + oldfile},
 105                         []string{"-foo=" + oldfile},
 106                 },
 107                 {
 108                         []string{"-foo", "-config=" + oldfile},
 109                         []string{"-foo", "-old-config=" + oldfile},
 110                 },
 111                 {
 112                         []string{"-foo", "bar", "-config=" + oldfile},
 113                         []string{"-foo", "bar", "-old-config=" + oldfile},
 114                 },
 115                 {
 116                         []string{"-foo=bar", "baz", "-config=" + oldfile},
 117                         []string{"-foo=bar", "baz", "-old-config=" + oldfile},
 118                 },
 119                 {
 120                         []string{"-config=/dev/null"},
 121                         []string{"-config=/dev/null"},
 122                 },
 123                 {
 124                         []string{"-config=-"},
 125                         []string{"-config=-"},
 126                 },
 127                 {
 128                         []string{"-config="},
 129                         []string{"-config="},
 130                 },
 131                 {
 132                         []string{"-foo=bar", "baz", "-config"},
 133                         []string{"-foo=bar", "baz", "-config"},
 134                 },
 135                 {
 136                         []string{},
 137                         nil,
 138                 },
 139         } {
 140                 var logbuf bytes.Buffer
 141                 logger := logrus.New()
 142                 logger.Out = &logbuf
 143
 144                 var ldr Loader
 145                 args := ldr.MungeLegacyConfigArgs(logger, trial.argsIn, "-old-config")
 146                 c.Check(args, check.DeepEquals, trial.argsOut)
 147                 if fmt.Sprintf("%v", trial.argsIn) != fmt.Sprintf("%v", trial.argsOut) {
 148                         c.Check(logbuf.String(), check.Matches, `.*`+oldfile+` is not a cluster config file -- interpreting -config as -old-config.*\n`)
 149                 }
 150         }
 151 }
 152
 153 func (s *LoadSuite) TestSampleKeys(c *check.C) {
 154         for _, yaml := range []string{
 155                 `{"Clusters":{"z1111":{}}}`,
 156                 `{"Clusters":{"z1111":{"InstanceTypes":{"Foo":{"RAM": "12345M"}}}}}`,
 157         } {
 158                 cfg, err := testLoader(c, yaml, nil).Load()
 159                 c.Assert(err, check.IsNil)
 160                 cc, err := cfg.GetCluster("z1111")
 161                 _, hasSample := cc.InstanceTypes["SAMPLE"]
 162                 c.Check(hasSample, check.Equals, false)
 163                 if strings.Contains(yaml, "Foo") {
 164                         c.Check(cc.InstanceTypes["Foo"].RAM, check.Equals, arvados.ByteSize(12345000000))
 165                         c.Check(cc.InstanceTypes["Foo"].Price, check.Equals, 0.0)
 166                 }
 167         }
 168 }
 169
 170 func (s *LoadSuite) TestMultipleClusters(c *check.C) {
 171         cfg, err := testLoader(c, `{"Clusters":{"z1111":{},"z2222":{}}}`, nil).Load()
 172         c.Assert(err, check.IsNil)
 173         c1, err := cfg.GetCluster("z1111")
 174         c.Assert(err, check.IsNil)
 175         c.Check(c1.ClusterID, check.Equals, "z1111")
 176         c2, err := cfg.GetCluster("z2222")
 177         c.Assert(err, check.IsNil)
 178         c.Check(c2.ClusterID, check.Equals, "z2222")
 179 }
 180
 181 func (s *LoadSuite) TestDeprecatedOrUnknownWarning(c *check.C) {
 182         var logbuf bytes.Buffer
 183         _, err := testLoader(c, `
 184 Clusters:
 185   zzzzz:
 186     postgresql: {}
 187     BadKey: {}
 188     Containers: {}
 189     RemoteClusters:
 190       z2222:
 191         Host: z2222.arvadosapi.com
 192         Proxy: true
 193         BadKey: badValue
 194 `, &logbuf).Load()
 195         c.Assert(err, check.IsNil)
 196         logs := strings.Split(strings.TrimSuffix(logbuf.String(), "\n"), "\n")
 197         for _, log := range logs {
 198                 c.Check(log, check.Matches, `.*deprecated or unknown config entry:.*BadKey.*`)
 199         }
 200         c.Check(logs, check.HasLen, 2)
 201 }
 202
 203 func (s *LoadSuite) checkSAMPLEKeys(c *check.C, path string, x interface{}) {
 204         v := reflect.Indirect(reflect.ValueOf(x))
 205         switch v.Kind() {
 206         case reflect.Map:
 207                 var stringKeys, sampleKey bool
 208                 iter := v.MapRange()
 209                 for iter.Next() {
 210                         k := iter.Key()
 211                         if k.Kind() == reflect.String {
 212                                 stringKeys = true
 213                                 if k.String() == "SAMPLE" || k.String() == "xxxxx" {
 214                                         sampleKey = true
 215                                         s.checkSAMPLEKeys(c, path+"."+k.String(), iter.Value().Interface())
 216                                 }
 217                         }
 218                 }
 219                 if stringKeys && !sampleKey {
 220                         c.Errorf("%s is a map with string keys (type %T) but config.default.yml has no SAMPLE key", path, x)
 221                 }
 222                 return
 223         case reflect.Struct:
 224                 for i := 0; i < v.NumField(); i++ {
 225                         val := v.Field(i)
 226                         if val.CanInterface() {
 227                                 s.checkSAMPLEKeys(c, path+"."+v.Type().Field(i).Name, val.Interface())
 228                         }
 229                 }
 230         }
 231 }
 232
 233 func (s *LoadSuite) TestDefaultConfigHasAllSAMPLEKeys(c *check.C) {
 234         var logbuf bytes.Buffer
 235         loader := testLoader(c, string(DefaultYAML), &logbuf)
 236         cfg, err := loader.Load()
 237         c.Assert(err, check.IsNil)
 238         s.checkSAMPLEKeys(c, "", cfg)
 239 }
 240
 241 func (s *LoadSuite) TestNoUnrecognizedKeysInDefaultConfig(c *check.C) {
 242         var logbuf bytes.Buffer
 243         var supplied map[string]interface{}
 244         yaml.Unmarshal(DefaultYAML, &supplied)
 245
 246         loader := testLoader(c, string(DefaultYAML), &logbuf)
 247         cfg, err := loader.Load()
 248         c.Assert(err, check.IsNil)
 249         var loaded map[string]interface{}
 250         buf, err := yaml.Marshal(cfg)
 251         c.Assert(err, check.IsNil)
 252         err = yaml.Unmarshal(buf, &loaded)
 253         c.Assert(err, check.IsNil)
 254
 255         loader.logExtraKeys(loaded, supplied, "")
 256         c.Check(logbuf.String(), check.Equals, "")
 257 }
 258
 259 func (s *LoadSuite) TestNoWarningsForDumpedConfig(c *check.C) {
 260         var logbuf bytes.Buffer
 261         logger := logrus.New()
 262         logger.Out = &logbuf
 263         cfg, err := testLoader(c, `{"Clusters":{"zzzzz":{}}}`, &logbuf).Load()
 264         c.Assert(err, check.IsNil)
 265         yaml, err := yaml.Marshal(cfg)
 266         c.Assert(err, check.IsNil)
 267         cfgDumped, err := testLoader(c, string(yaml), &logbuf).Load()
 268         c.Assert(err, check.IsNil)
 269         c.Check(cfg, check.DeepEquals, cfgDumped)
 270         c.Check(logbuf.String(), check.Equals, "")
 271 }
 272
 273 func (s *LoadSuite) TestPostgreSQLKeyConflict(c *check.C) {
 274         _, err := testLoader(c, `
 275 Clusters:
 276  zzzzz:
 277   postgresql:
 278    connection:
 279      DBName: dbname
 280      Host: host
 281 `, nil).Load()
 282         c.Check(err, check.ErrorMatches, `Clusters.zzzzz.PostgreSQL.Connection: multiple entries for "(dbname|host)".*`)
 283 }
 284
 285 func (s *LoadSuite) TestBadType(c *check.C) {
 286         for _, data := range []string{`
 287 Clusters:
 288  zzzzz:
 289   PostgreSQL: true
 290 `, `
 291 Clusters:
 292  zzzzz:
 293   PostgreSQL:
 294    ConnectionPool: true
 295 `, `
 296 Clusters:
 297  zzzzz:
 298   PostgreSQL:
 299    ConnectionPool: "foo"
 300 `, `
 301 Clusters:
 302  zzzzz:
 303   PostgreSQL:
 304    ConnectionPool: []
 305 `, `
 306 Clusters:
 307  zzzzz:
 308   PostgreSQL:
 309    ConnectionPool: [] # {foo: bar} isn't caught here; we rely on config-check
 310 `,
 311         } {
 312                 c.Log(data)
 313                 v, err := testLoader(c, data, nil).Load()
 314                 if v != nil {
 315                         c.Logf("%#v", v.Clusters["zzzzz"].PostgreSQL.ConnectionPool)
 316                 }
 317                 c.Check(err, check.ErrorMatches, `.*cannot unmarshal .*PostgreSQL.*`)
 318         }
 319 }
 320
 321 func (s *LoadSuite) TestMovedKeys(c *check.C) {
 322         s.checkEquivalent(c, `# config has old keys only
 323 Clusters:
 324  zzzzz:
 325   RequestLimits:
 326    MultiClusterRequestConcurrency: 3
 327    MaxItemsPerResponse: 999
 328 `, `
 329 Clusters:
 330  zzzzz:
 331   API:
 332    MaxRequestAmplification: 3
 333    MaxItemsPerResponse: 999
 334 `)
 335         s.checkEquivalent(c, `# config has both old and new keys; old values win
 336 Clusters:
 337  zzzzz:
 338   RequestLimits:
 339    MultiClusterRequestConcurrency: 0
 340    MaxItemsPerResponse: 555
 341   API:
 342    MaxRequestAmplification: 3
 343    MaxItemsPerResponse: 999
 344 `, `
 345 Clusters:
 346  zzzzz:
 347   API:
 348    MaxRequestAmplification: 0
 349    MaxItemsPerResponse: 555
 350 `)
 351 }
 352
 353 func (s *LoadSuite) checkEquivalent(c *check.C, goty, expectedy string) {
 354         got, err := testLoader(c, goty, nil).Load()
 355         c.Assert(err, check.IsNil)
 356         expected, err := testLoader(c, expectedy, nil).Load()
 357         c.Assert(err, check.IsNil)
 358         if !c.Check(got, check.DeepEquals, expected) {
 359                 cmd := exec.Command("diff", "-u", "--label", "expected", "--label", "got", "/dev/fd/3", "/dev/fd/4")
 360                 for _, obj := range []interface{}{expected, got} {
 361                         y, _ := yaml.Marshal(obj)
 362                         pr, pw, err := os.Pipe()
 363                         c.Assert(err, check.IsNil)
 364                         defer pr.Close()
 365                         go func() {
 366                                 io.Copy(pw, bytes.NewBuffer(y))
 367                                 pw.Close()
 368                         }()
 369                         cmd.ExtraFiles = append(cmd.ExtraFiles, pr)
 370                 }
 371                 diff, err := cmd.CombinedOutput()
 372                 c.Log(string(diff))
 373                 c.Check(err, check.IsNil)
 374         }
 375 }