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consul/command/connect/envoy/bootstrap_config_test.go

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package envoy
import (
"reflect"
"strings"
"testing"
"github.com/stretchr/testify/require"
)
const (
expectedPromListener = `{
"name": "envoy_prometheus_metrics_listener",
"address": {
"socket_address": {
"address": "0.0.0.0",
"port_value": 9000
}
},
"filter_chains": [
{
"filters": [
{
"name": "envoy.http_connection_manager",
"config": {
"stat_prefix": "envoy_prometheus_metrics",
"codec_type": "HTTP1",
"route_config": {
"name": "self_admin_route",
"virtual_hosts": [
{
"name": "self_admin",
"domains": [
"*"
],
"routes": [
{
"match": {
"path": "/metrics"
},
"route": {
"cluster": "self_admin",
"prefix_rewrite": "/stats/prometheus"
}
},
{
"match": {
"prefix": "/"
},
"direct_response": {
"status": 404
}
}
]
}
]
},
"http_filters": [
{
"name": "envoy.router"
}
]
}
}
]
}
]
}`
expectedPromCluster = `{
"name": "self_admin",
"connect_timeout": "5s",
"type": "STATIC",
"http_protocol_options": {},
"hosts": [
{
"socket_address": {
"address": "127.0.0.1",
"port_value": 19000
}
}
]
}`
)
func TestBootstrapConfig_ConfigureArgs(t *testing.T) {
sniTagJSON := strings.Join(sniTagJSONs, ",\n")
defaultStatsConfigJSON := `{
"stats_tags": [
` + sniTagJSON + `
],
"use_all_default_tags": true
}`
tests := []struct {
name string
input BootstrapConfig
env []string
baseArgs BootstrapTplArgs
wantArgs BootstrapTplArgs
wantErr bool
}{
{
name: "defaults",
input: BootstrapConfig{},
wantArgs: BootstrapTplArgs{
StatsConfigJSON: defaultStatsConfigJSON,
},
wantErr: false,
},
{
name: "extra-stats-sinks",
input: BootstrapConfig{
StatsSinksJSON: `{
"name": "envoy.custom_exciting_sink",
"config": {
"foo": "bar"
}
}`,
},
wantArgs: BootstrapTplArgs{
StatsConfigJSON: defaultStatsConfigJSON,
StatsSinksJSON: `[{
"name": "envoy.custom_exciting_sink",
"config": {
"foo": "bar"
}
}]`,
},
},
{
name: "simple-statsd-sink",
input: BootstrapConfig{
StatsdURL: "udp://127.0.0.1:9125",
},
wantArgs: BootstrapTplArgs{
StatsConfigJSON: defaultStatsConfigJSON,
StatsSinksJSON: `[{
"name": "envoy.statsd",
"config": {
"address": {
"socket_address": {
"address": "127.0.0.1",
"port_value": 9125
}
}
}
}]`,
},
wantErr: false,
},
{
name: "simple-statsd-sink-plus-extra",
input: BootstrapConfig{
StatsdURL: "udp://127.0.0.1:9125",
StatsSinksJSON: `{
"name": "envoy.custom_exciting_sink",
"config": {
"foo": "bar"
}
}`,
},
wantArgs: BootstrapTplArgs{
StatsConfigJSON: defaultStatsConfigJSON,
StatsSinksJSON: `[{
"name": "envoy.statsd",
"config": {
"address": {
"socket_address": {
"address": "127.0.0.1",
"port_value": 9125
}
}
}
},
{
"name": "envoy.custom_exciting_sink",
"config": {
"foo": "bar"
}
}]`,
},
wantErr: false,
},
{
name: "simple-statsd-sink-env",
input: BootstrapConfig{
StatsdURL: "$MY_STATSD_URL",
},
env: []string{"MY_STATSD_URL=udp://127.0.0.1:9125"},
wantArgs: BootstrapTplArgs{
StatsConfigJSON: defaultStatsConfigJSON,
StatsSinksJSON: `[{
"name": "envoy.statsd",
"config": {
"address": {
"socket_address": {
"address": "127.0.0.1",
"port_value": 9125
}
}
}
}]`,
},
wantErr: false,
},
{
name: "simple-dogstatsd-sink",
input: BootstrapConfig{
DogstatsdURL: "udp://127.0.0.1:9125",
},
wantArgs: BootstrapTplArgs{
StatsConfigJSON: defaultStatsConfigJSON,
StatsSinksJSON: `[{
"name": "envoy.dog_statsd",
"config": {
"address": {
"socket_address": {
"address": "127.0.0.1",
"port_value": 9125
}
}
}
}]`,
},
wantErr: false,
},
{
name: "simple-dogstatsd-unix-sink",
input: BootstrapConfig{
DogstatsdURL: "unix:///var/run/dogstatsd.sock",
},
wantArgs: BootstrapTplArgs{
StatsConfigJSON: defaultStatsConfigJSON,
StatsSinksJSON: `[{
"name": "envoy.dog_statsd",
"config": {
"address": {
"pipe": {
"path": "/var/run/dogstatsd.sock"
}
}
}
}]`,
},
wantErr: false,
},
{
name: "simple-dogstatsd-sink-env",
input: BootstrapConfig{
DogstatsdURL: "$MY_STATSD_URL",
},
env: []string{"MY_STATSD_URL=udp://127.0.0.1:9125"},
wantArgs: BootstrapTplArgs{
StatsConfigJSON: defaultStatsConfigJSON,
StatsSinksJSON: `[{
"name": "envoy.dog_statsd",
"config": {
"address": {
"socket_address": {
"address": "127.0.0.1",
"port_value": 9125
}
}
}
}]`,
},
wantErr: false,
},
{
name: "stats-config-override",
input: BootstrapConfig{
StatsConfigJSON: `{
"use_all_default_tags": true
}`,
},
wantArgs: BootstrapTplArgs{
StatsConfigJSON: `{
"use_all_default_tags": true
}`,
},
wantErr: false,
},
{
name: "simple-tags",
input: BootstrapConfig{
StatsTags: []string{"canary", "foo=bar", "baz=2"},
},
wantArgs: BootstrapTplArgs{
StatsConfigJSON: `{
"stats_tags": [
` + sniTagJSON + `,
{
"tag_name": "canary",
"fixed_value": "1"
},
{
"tag_name": "foo",
"fixed_value": "bar"
},
{
"tag_name": "baz",
"fixed_value": "2"
}
],
"use_all_default_tags": true
}`,
},
wantErr: false,
},
{
name: "prometheus-bind-addr",
input: BootstrapConfig{
PrometheusBindAddr: "0.0.0.0:9000",
},
baseArgs: BootstrapTplArgs{
AdminBindAddress: "127.0.0.1",
AdminBindPort: "19000",
},
wantArgs: BootstrapTplArgs{
AdminBindAddress: "127.0.0.1",
AdminBindPort: "19000",
// Should add a static cluster for the self-proxy to admin
StaticClustersJSON: expectedPromCluster,
// Should add a static http listener too
StaticListenersJSON: expectedPromListener,
StatsConfigJSON: defaultStatsConfigJSON,
},
wantErr: false,
},
{
name: "prometheus-bind-addr-with-overrides",
input: BootstrapConfig{
PrometheusBindAddr: "0.0.0.0:9000",
StaticClustersJSON: `{"foo":"bar"}`,
StaticListenersJSON: `{"baz":"qux"}`,
},
baseArgs: BootstrapTplArgs{
AdminBindAddress: "127.0.0.1",
AdminBindPort: "19000",
},
wantArgs: BootstrapTplArgs{
AdminBindAddress: "127.0.0.1",
AdminBindPort: "19000",
// Should add a static cluster for the self-proxy to admin
StaticClustersJSON: `{"foo":"bar"},` + expectedPromCluster,
// Should add a static http listener too
StaticListenersJSON: `{"baz":"qux"},` + expectedPromListener,
StatsConfigJSON: defaultStatsConfigJSON,
},
wantErr: false,
},
{
name: "stats-flush-interval",
input: BootstrapConfig{
StatsFlushInterval: `10s`,
},
wantArgs: BootstrapTplArgs{
StatsConfigJSON: defaultStatsConfigJSON,
StatsFlushInterval: `10s`,
},
wantErr: false,
},
{
name: "override-tracing",
input: BootstrapConfig{
TracingConfigJSON: `{"foo": "bar"}`,
},
wantArgs: BootstrapTplArgs{
StatsConfigJSON: defaultStatsConfigJSON,
TracingConfigJSON: `{"foo": "bar"}`,
},
wantErr: false,
},
{
name: "err-bad-prometheus-addr",
input: BootstrapConfig{
PrometheusBindAddr: "asdasdsad",
},
wantErr: true,
},
{
name: "err-bad-statsd-addr",
input: BootstrapConfig{
StatsdURL: "asdasdsad",
},
wantErr: true,
},
{
name: "err-bad-dogstatsd-addr",
input: BootstrapConfig{
DogstatsdURL: "asdasdsad",
},
wantErr: true,
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
args := tt.baseArgs
defer testSetAndResetEnv(t, tt.env)()
err := tt.input.ConfigureArgs(&args)
if tt.wantErr {
require.Error(t, err)
} else {
require.NoError(t, err)
// Want to compare JSON fields with JSONEq
argV := reflect.ValueOf(args)
wantV := reflect.ValueOf(tt.wantArgs)
argT := reflect.TypeOf(args)
for i := 0; i < argT.NumField(); i++ {
f := argT.Field(i)
if strings.HasSuffix(f.Name, "JSON") && wantV.Field(i).String() != "" {
// Some of our JSON strings are comma separated objects to be
// insertedinto an array which is not valid JSON on it's own so wrap
// them all in an array. For simple values this is still valid JSON
// too.
want := "[" + wantV.Field(i).String() + "]"
got := "[" + argV.Field(i).String() + "]"
require.JSONEq(t, want, got, "field %s should be equivalent JSON", f.Name)
} else {
require.Equalf(t, wantV.Field(i).Interface(),
argV.Field(i).Interface(), "field %s should be equal", f.Name)
}
}
}
})
}
}
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