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Consul is a distributed, highly available, and data center aware solution to connect and configure applications across dynamic, distributed infrastructure.
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consul/api/config_entry_test.go

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package api
import (
"encoding/json"
"testing"
"time"
"github.com/stretchr/testify/require"
)
func TestAPI_ConfigEntries(t *testing.T) {
t.Parallel()
c, s := makeClient(t)
defer s.Stop()
config_entries := c.ConfigEntries()
t.Run("Proxy Defaults", func(t *testing.T) {
global_proxy := &ProxyConfigEntry{
Kind: ProxyDefaults,
Name: ProxyConfigGlobal,
Config: map[string]interface{}{
"foo": "bar",
"bar": 1.0,
},
}
// set it
_, wm, err := config_entries.Set(global_proxy, nil)
require.NoError(t, err)
require.NotNil(t, wm)
require.NotEqual(t, 0, wm.RequestTime)
// get it
entry, qm, err := config_entries.Get(ProxyDefaults, ProxyConfigGlobal, nil)
require.NoError(t, err)
require.NotNil(t, qm)
require.NotEqual(t, 0, qm.RequestTime)
// verify it
readProxy, ok := entry.(*ProxyConfigEntry)
require.True(t, ok)
require.Equal(t, global_proxy.Kind, readProxy.Kind)
require.Equal(t, global_proxy.Name, readProxy.Name)
require.Equal(t, global_proxy.Config, readProxy.Config)
global_proxy.Config["baz"] = true
// CAS update fail
written, _, err := config_entries.CAS(global_proxy, 0, nil)
require.NoError(t, err)
require.False(t, written)
// CAS update success
written, wm, err = config_entries.CAS(global_proxy, readProxy.ModifyIndex, nil)
require.NoError(t, err)
require.NotNil(t, wm)
require.NotEqual(t, 0, wm.RequestTime)
require.NoError(t, err)
require.True(t, written)
// Non CAS update
global_proxy.Config["baz"] = "baz"
_, wm, err = config_entries.Set(global_proxy, nil)
require.NoError(t, err)
require.NotNil(t, wm)
require.NotEqual(t, 0, wm.RequestTime)
// list it
entries, qm, err := config_entries.List(ProxyDefaults, nil)
require.NoError(t, err)
require.NotNil(t, qm)
require.NotEqual(t, 0, qm.RequestTime)
require.Len(t, entries, 1)
readProxy, ok = entries[0].(*ProxyConfigEntry)
require.True(t, ok)
require.Equal(t, global_proxy.Kind, readProxy.Kind)
require.Equal(t, global_proxy.Name, readProxy.Name)
require.Equal(t, global_proxy.Config, readProxy.Config)
// delete it
wm, err = config_entries.Delete(ProxyDefaults, ProxyConfigGlobal, nil)
require.NoError(t, err)
require.NotNil(t, wm)
require.NotEqual(t, 0, wm.RequestTime)
entry, qm, err = config_entries.Get(ProxyDefaults, ProxyConfigGlobal, nil)
require.Error(t, err)
})
t.Run("Service Defaults", func(t *testing.T) {
service := &ServiceConfigEntry{
Kind: ServiceDefaults,
Name: "foo",
Protocol: "udp",
}
service2 := &ServiceConfigEntry{
Kind: ServiceDefaults,
Name: "bar",
Protocol: "tcp",
}
// set it
_, wm, err := config_entries.Set(service, nil)
require.NoError(t, err)
require.NotNil(t, wm)
require.NotEqual(t, 0, wm.RequestTime)
// also set the second one
_, wm, err = config_entries.Set(service2, nil)
require.NoError(t, err)
require.NotNil(t, wm)
require.NotEqual(t, 0, wm.RequestTime)
// get it
entry, qm, err := config_entries.Get(ServiceDefaults, "foo", nil)
require.NoError(t, err)
require.NotNil(t, qm)
require.NotEqual(t, 0, qm.RequestTime)
// verify it
readService, ok := entry.(*ServiceConfigEntry)
require.True(t, ok)
require.Equal(t, service.Kind, readService.Kind)
require.Equal(t, service.Name, readService.Name)
require.Equal(t, service.Protocol, readService.Protocol)
// update it
service.Protocol = "tcp"
// CAS fail
written, _, err := config_entries.CAS(service, 0, nil)
require.NoError(t, err)
require.False(t, written)
// CAS success
written, wm, err = config_entries.CAS(service, readService.ModifyIndex, nil)
require.NoError(t, err)
require.NotNil(t, wm)
require.NotEqual(t, 0, wm.RequestTime)
require.True(t, written)
// update no cas
service.Protocol = "http"
_, wm, err = config_entries.Set(service, nil)
require.NoError(t, err)
require.NotNil(t, wm)
require.NotEqual(t, 0, wm.RequestTime)
// list them
entries, qm, err := config_entries.List(ServiceDefaults, nil)
require.NoError(t, err)
require.NotNil(t, qm)
require.NotEqual(t, 0, qm.RequestTime)
require.Len(t, entries, 2)
for _, entry = range entries {
switch entry.GetName() {
case "foo":
// this also verifies that the update value was persisted and
// the updated values are seen
readService, ok = entry.(*ServiceConfigEntry)
require.True(t, ok)
require.Equal(t, service.Kind, readService.Kind)
require.Equal(t, service.Name, readService.Name)
require.Equal(t, service.Protocol, readService.Protocol)
case "bar":
readService, ok = entry.(*ServiceConfigEntry)
require.True(t, ok)
require.Equal(t, service2.Kind, readService.Kind)
require.Equal(t, service2.Name, readService.Name)
require.Equal(t, service2.Protocol, readService.Protocol)
}
}
// delete it
wm, err = config_entries.Delete(ServiceDefaults, "foo", nil)
require.NoError(t, err)
require.NotNil(t, wm)
require.NotEqual(t, 0, wm.RequestTime)
// verify deletion
entry, qm, err = config_entries.Get(ServiceDefaults, "foo", nil)
require.Error(t, err)
})
}
func TestDecodeConfigEntry(t *testing.T) {
t.Parallel()
for _, tc := range []struct {
name string
body string
expect ConfigEntry
expectErr string
}{
{
name: "expose-paths: kitchen sink proxy",
body: `
{
"Kind": "proxy-defaults",
"Name": "global",
"Expose": {
"Checks": true,
"Paths": [
{
"LocalPathPort": 8080,
"ListenerPort": 21500,
"Path": "/healthz",
"Protocol": "http2"
}
]
}
}
`,
expect: &ProxyConfigEntry{
Kind: "proxy-defaults",
Name: "global",
Expose: ExposeConfig{
Checks: true,
Paths: []ExposePath{
{
LocalPathPort: 8080,
ListenerPort: 21500,
Path: "/healthz",
Protocol: "http2",
},
},
},
},
},
{
name: "expose-paths: kitchen sink service default",
body: `
{
"Kind": "service-defaults",
"Name": "global",
"Expose": {
"Checks": true,
"Paths": [
{
"LocalPathPort": 8080,
"ListenerPort": 21500,
"Path": "/healthz",
"Protocol": "http2"
}
]
}
}
`,
expect: &ServiceConfigEntry{
Kind: "service-defaults",
Name: "global",
Expose: ExposeConfig{
Checks: true,
Paths: []ExposePath{
{
LocalPathPort: 8080,
ListenerPort: 21500,
Path: "/healthz",
Protocol: "http2",
},
},
},
},
},
{
name: "proxy-defaults",
body: `
{
"Kind": "proxy-defaults",
"Name": "main",
"Config": {
"foo": 19,
"bar": "abc",
"moreconfig": {
"moar": "config"
}
},
"MeshGateway": {
"Mode": "remote"
}
}
`,
expect: &ProxyConfigEntry{
Kind: "proxy-defaults",
Name: "main",
Config: map[string]interface{}{
"foo": float64(19),
"bar": "abc",
"moreconfig": map[string]interface{}{
"moar": "config",
},
},
MeshGateway: MeshGatewayConfig{
Mode: MeshGatewayModeRemote,
},
},
},
{
name: "service-defaults",
body: `
{
"Kind": "service-defaults",
"Name": "main",
"Protocol": "http",
"ExternalSNI": "abc-123",
"MeshGateway": {
"Mode": "remote"
}
}
`,
expect: &ServiceConfigEntry{
Kind: "service-defaults",
Name: "main",
Protocol: "http",
ExternalSNI: "abc-123",
MeshGateway: MeshGatewayConfig{
Mode: MeshGatewayModeRemote,
},
},
},
{
name: "service-router: kitchen sink",
body: `
{
"Kind": "service-router",
"Name": "main",
"Routes": [
{
"Match": {
"HTTP": {
"PathExact": "/foo",
"Header": [
{
"Name": "debug1",
"Present": true
},
{
"Name": "debug2",
"Present": false,
"Invert": true
},
{
"Name": "debug3",
"Exact": "1"
},
{
"Name": "debug4",
"Prefix": "aaa"
},
{
"Name": "debug5",
"Suffix": "bbb"
},
{
"Name": "debug6",
"Regex": "a.*z"
}
]
}
},
"Destination": {
"Service": "carrot",
"ServiceSubset": "kale",
"Namespace": "leek",
"PrefixRewrite": "/alternate",
"RequestTimeout": "99s",
"NumRetries": 12345,
"RetryOnConnectFailure": true,
"RetryOnStatusCodes": [401, 209]
}
},
{
"Match": {
"HTTP": {
"PathPrefix": "/foo",
"Methods": [ "GET", "DELETE" ],
"QueryParam": [
{
"Name": "hack1",
"Present": true
},
{
"Name": "hack2",
"Exact": "1"
},
{
"Name": "hack3",
"Regex": "a.*z"
}
]
}
}
},
{
"Match": {
"HTTP": {
"PathRegex": "/foo"
}
}
}
]
}
`,
expect: &ServiceRouterConfigEntry{
Kind: "service-router",
Name: "main",
Routes: []ServiceRoute{
{
Match: &ServiceRouteMatch{
HTTP: &ServiceRouteHTTPMatch{
PathExact: "/foo",
Header: []ServiceRouteHTTPMatchHeader{
{
Name: "debug1",
Present: true,
},
{
Name: "debug2",
Present: false,
Invert: true,
},
{
Name: "debug3",
Exact: "1",
},
{
Name: "debug4",
Prefix: "aaa",
},
{
Name: "debug5",
Suffix: "bbb",
},
{
Name: "debug6",
Regex: "a.*z",
},
},
},
},
Destination: &ServiceRouteDestination{
Service: "carrot",
ServiceSubset: "kale",
Namespace: "leek",
PrefixRewrite: "/alternate",
RequestTimeout: 99 * time.Second,
NumRetries: 12345,
RetryOnConnectFailure: true,
RetryOnStatusCodes: []uint32{401, 209},
},
},
{
Match: &ServiceRouteMatch{
HTTP: &ServiceRouteHTTPMatch{
PathPrefix: "/foo",
Methods: []string{"GET", "DELETE"},
QueryParam: []ServiceRouteHTTPMatchQueryParam{
{
Name: "hack1",
Present: true,
},
{
Name: "hack2",
Exact: "1",
},
{
Name: "hack3",
Regex: "a.*z",
},
},
},
},
},
{
Match: &ServiceRouteMatch{
HTTP: &ServiceRouteHTTPMatch{
PathRegex: "/foo",
},
},
},
},
},
},
{
name: "service-splitter: kitchen sink",
body: `
{
"Kind": "service-splitter",
"Name": "main",
"Splits": [
{
"Weight": 99.1,
"ServiceSubset": "v1"
},
{
"Weight": 0.9,
"Service": "other",
"Namespace": "alt"
}
]
}
`,
expect: &ServiceSplitterConfigEntry{
Kind: ServiceSplitter,
Name: "main",
Splits: []ServiceSplit{
{
Weight: 99.1,
ServiceSubset: "v1",
},
{
Weight: 0.9,
Service: "other",
Namespace: "alt",
},
},
},
},
{
name: "service-resolver: subsets with failover",
body: `
{
"Kind": "service-resolver",
"Name": "main",
"DefaultSubset": "v1",
"ConnectTimeout": "15s",
"Subsets": {
"v1": {
"Filter": "Service.Meta.version == v1"
},
"v2": {
"Filter": "Service.Meta.version == v2",
"OnlyPassing": true
}
},
"Failover": {
"v2": {
"Service": "failcopy",
"ServiceSubset": "sure",
"Namespace": "neighbor",
"Datacenters": ["dc5", "dc14"]
},
"*": {
"Datacenters": ["dc7"]
}
}
}`,
expect: &ServiceResolverConfigEntry{
Kind: "service-resolver",
Name: "main",
DefaultSubset: "v1",
ConnectTimeout: 15 * time.Second,
Subsets: map[string]ServiceResolverSubset{
"v1": {
Filter: "Service.Meta.version == v1",
},
"v2": {
Filter: "Service.Meta.version == v2",
OnlyPassing: true,
},
},
Failover: map[string]ServiceResolverFailover{
"v2": {
Service: "failcopy",
ServiceSubset: "sure",
Namespace: "neighbor",
Datacenters: []string{"dc5", "dc14"},
},
"*": {
Datacenters: []string{"dc7"},
},
},
},
},
{
name: "service-resolver: redirect",
body: `
{
"Kind": "service-resolver",
"Name": "main",
"Redirect": {
"Service": "other",
"ServiceSubset": "backup",
"Namespace": "alt",
"Datacenter": "dc9"
}
}
`,
expect: &ServiceResolverConfigEntry{
Kind: "service-resolver",
Name: "main",
Redirect: &ServiceResolverRedirect{
Service: "other",
ServiceSubset: "backup",
Namespace: "alt",
Datacenter: "dc9",
},
},
},
{
name: "service-resolver: default",
body: `
{
"Kind": "service-resolver",
"Name": "main"
}
`,
expect: &ServiceResolverConfigEntry{
Kind: "service-resolver",
Name: "main",
},
},
} {
tc := tc
t.Run(tc.name+": DecodeConfigEntry", func(t *testing.T) {
var raw map[string]interface{}
require.NoError(t, json.Unmarshal([]byte(tc.body), &raw))
got, err := DecodeConfigEntry(raw)
require.NoError(t, err)
require.Equal(t, tc.expect, got)
})
t.Run(tc.name+": DecodeConfigEntryFromJSON", func(t *testing.T) {
got, err := DecodeConfigEntryFromJSON([]byte(tc.body))
require.NoError(t, err)
require.Equal(t, tc.expect, got)
})
t.Run(tc.name+": DecodeConfigEntrySlice", func(t *testing.T) {
var raw []map[string]interface{}
require.NoError(t, json.Unmarshal([]byte("["+tc.body+"]"), &raw))
got, err := decodeConfigEntrySlice(raw)
require.NoError(t, err)
require.Len(t, got, 1)
require.Equal(t, tc.expect, got[0])
})
}
}