github.com/m3db/m3@v1.5.0/src/dbnode/discovery/config_test.go (about)

     1  // Copyright (c) 2020 Uber Technologies, Inc.
     2  //
     3  // Permission is hereby granted, free of charge, to any person obtaining a copy
     4  // of this software and associated documentation files (the "Software"), to deal
     5  // in the Software without restriction, including without limitation the rights
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     7  // copies of the Software, and to permit persons to whom the Software is
     8  // furnished to do so, subject to the following conditions:
     9  //
    10  // The above copyright notice and this permission notice shall be included in
    11  // all copies or substantial portions of the Software.
    12  //
    13  // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
    14  // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
    15  // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
    16  // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
    17  // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
    18  // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
    19  // THE SOFTWARE.
    20  
    21  package discovery
    22  
    23  import (
    24  	"io/ioutil"
    25  	"os"
    26  	"testing"
    27  
    28  	"github.com/stretchr/testify/assert"
    29  
    30  	"github.com/m3db/m3/src/dbnode/environment"
    31  	"github.com/m3db/m3/src/x/config"
    32  )
    33  
    34  func TestM3DBSingleNodeType(t *testing.T) {
    35  	in := `
    36  type: m3db_single_node
    37  `
    38  
    39  	hostID := "test_id"
    40  	envConfig := getEnvConfig(t, in, hostID)
    41  
    42  	assert.Equal(t, 1, len(envConfig.Services))
    43  	assert.Equal(t, 1, len(envConfig.SeedNodes.InitialCluster))
    44  
    45  	s := envConfig.Services[0].Service
    46  	assert.Equal(t, defaultM3DBService, s.Service)
    47  	assert.Equal(t, defaultEnvironment, s.Env)
    48  	assert.Equal(t, defaultZone, s.Zone)
    49  	assert.Equal(t, defaultCacheDirectory, s.CacheDir)
    50  	assert.Equal(t, 1, len(s.ETCDClusters))
    51  	assert.Equal(t, defaultZone, s.ETCDClusters[0].Zone)
    52  	assert.Equal(t, 1, len(s.ETCDClusters[0].Endpoints))
    53  	assert.Equal(t, defaultSingleNodeClusterEndpoint, s.ETCDClusters[0].Endpoints[0])
    54  
    55  	c := envConfig.SeedNodes.InitialCluster[0]
    56  	assert.Equal(t, defaultSingleNodeClusterSeedEndpoint, c.Endpoint)
    57  	assert.Equal(t, hostID, c.HostID)
    58  }
    59  
    60  func TestM3DBClusterType(t *testing.T) {
    61  	in := `
    62  type: m3db_cluster
    63  m3dbCluster:
    64    env: a
    65    zone: b
    66    endpoints:
    67      - end_1
    68      - end_2
    69  `
    70  
    71  	envConfig := getEnvConfig(t, in, "")
    72  	validateClusterConfig(t, envConfig, defaultM3DBService)
    73  }
    74  
    75  func TestM3AggregatorClusterType(t *testing.T) {
    76  	in := `
    77  type: m3aggregator_cluster
    78  m3AggregatorCluster:
    79    env: a
    80    zone: b
    81    endpoints:
    82      - end_1
    83      - end_2
    84  `
    85  
    86  	envConfig := getEnvConfig(t, in, "")
    87  	validateClusterConfig(t, envConfig, defaultM3AggregatorService)
    88  }
    89  
    90  func TestConfigType(t *testing.T) {
    91  	in := `
    92  config:
    93      service:
    94          env: test_env
    95          zone: test_zone
    96          service: test_service
    97          cacheDir: test/cache
    98          etcdClusters:
    99              - zone: test_zone_2
   100                endpoints:
   101                    - 127.0.0.1:2379
   102      seedNodes:
   103          initialCluster:
   104              - hostID: host_id
   105                endpoint: http://127.0.0.1:2380
   106  `
   107  
   108  	hostID := "test_id"
   109  	envConfig := getEnvConfig(t, in, hostID)
   110  
   111  	assert.Equal(t, 1, len(envConfig.Services))
   112  	assert.Equal(t, 1, len(envConfig.SeedNodes.InitialCluster))
   113  
   114  	s := envConfig.Services[0].Service
   115  	assert.Equal(t, "test_service", s.Service)
   116  	assert.Equal(t, "test_env", s.Env)
   117  	assert.Equal(t, "test_zone", s.Zone)
   118  	assert.Equal(t, "test/cache", s.CacheDir)
   119  	assert.Equal(t, 1, len(s.ETCDClusters))
   120  	assert.Equal(t, "test_zone_2", s.ETCDClusters[0].Zone)
   121  	assert.Equal(t, 1, len(s.ETCDClusters[0].Endpoints))
   122  	assert.Equal(t, "127.0.0.1:2379", s.ETCDClusters[0].Endpoints[0])
   123  
   124  	c := envConfig.SeedNodes.InitialCluster[0]
   125  	assert.Equal(t, "http://127.0.0.1:2380", c.Endpoint)
   126  	assert.Equal(t, "host_id", c.HostID)
   127  }
   128  
   129  func getEnvConfig(t *testing.T, in string, hostID string) environment.Configuration {
   130  	fd, err := ioutil.TempFile("", "config.yaml")
   131  	assert.NoError(t, err)
   132  	defer func() {
   133  		assert.NoError(t, fd.Close())
   134  		assert.NoError(t, os.Remove(fd.Name()))
   135  	}()
   136  
   137  	_, err = fd.Write([]byte(in))
   138  	assert.NoError(t, err)
   139  
   140  	var cfg Configuration
   141  	err = config.LoadFile(&cfg, fd.Name(), config.Options{})
   142  	assert.NoError(t, err)
   143  
   144  	envConfig, err := cfg.EnvironmentConfig(hostID)
   145  	assert.NoError(t, err)
   146  
   147  	return envConfig
   148  }
   149  
   150  func validateClusterConfig(t *testing.T,
   151  	envConfig environment.Configuration,
   152  	expectedService string,
   153  ) {
   154  	assert.Equal(t, 1, len(envConfig.Services))
   155  	assert.Nil(t, envConfig.SeedNodes)
   156  	s := envConfig.Services[0].Service
   157  	assert.Equal(t, expectedService, s.Service)
   158  	assert.Equal(t, "a", s.Env)
   159  	assert.Equal(t, "b", s.Zone)
   160  	assert.Equal(t, defaultCacheDirectory, s.CacheDir)
   161  	assert.Equal(t, 1, len(s.ETCDClusters))
   162  	assert.Equal(t, "b", s.ETCDClusters[0].Zone)
   163  	assert.Equal(t, 2, len(s.ETCDClusters[0].Endpoints))
   164  	assert.Equal(t, "end_1", s.ETCDClusters[0].Endpoints[0])
   165  	assert.Equal(t, "end_2", s.ETCDClusters[0].Endpoints[1])
   166  }