Consul is a distributed, highly available, and data center aware solution to connect and configure applications across dynamic, distributed infrastructure.
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package agent
import (
"bytes"
"fmt"
"io"
"io/ioutil"
"net/http"
"net/http/httptest"
"net/url"
"os"
"path/filepath"
"testing"
"github.com/hashicorp/consul/testrpc"
"github.com/hashicorp/consul/agent/structs"
"github.com/hashicorp/consul/api"
"github.com/hashicorp/consul/sdk/testutil"
cleanhttp "github.com/hashicorp/go-cleanhttp"
"github.com/stretchr/testify/require"
)
func TestUiIndex(t *testing.T) {
t.Parallel()
// Make a test dir to serve UI files
uiDir := testutil.TempDir(t, "consul")
defer os.RemoveAll(uiDir)
// Make the server
a := NewTestAgent(t, t.Name(), `
ui_dir = "`+uiDir+`"
`)
defer a.Shutdown()
testrpc.WaitForLeader(t, a.RPC, "dc1")
// Create file
path := filepath.Join(a.Config.UIDir, "my-file")
if err := ioutil.WriteFile(path, []byte("test"), 777); err != nil {
t.Fatalf("err: %v", err)
}
// Register node
req, _ := http.NewRequest("GET", "/ui/my-file", nil)
req.URL.Scheme = "http"
req.URL.Host = a.srv.Addr
// Make the request
client := cleanhttp.DefaultClient()
resp, err := client.Do(req)
if err != nil {
t.Fatalf("err: %v", err)
}
// Verify the response
if resp.StatusCode != 200 {
t.Fatalf("bad: %v", resp)
}
// Verify the body
out := bytes.NewBuffer(nil)
io.Copy(out, resp.Body)
if out.String() != "test" {
t.Fatalf("bad: %s", out.Bytes())
}
}
func TestUiNodes(t *testing.T) {
t.Parallel()
a := NewTestAgent(t, t.Name(), "")
defer a.Shutdown()
testrpc.WaitForTestAgent(t, a.RPC, "dc1")
args := &structs.RegisterRequest{
Datacenter: "dc1",
Node: "test",
Address: "127.0.0.1",
}
var out struct{}
if err := a.RPC("Catalog.Register", args, &out); err != nil {
t.Fatalf("err: %v", err)
}
req, _ := http.NewRequest("GET", "/v1/internal/ui/nodes/dc1", nil)
resp := httptest.NewRecorder()
obj, err := a.srv.UINodes(resp, req)
if err != nil {
t.Fatalf("err: %v", err)
}
assertIndex(t, resp)
// Should be 2 nodes, and all the empty lists should be non-nil
nodes := obj.(structs.NodeDump)
if len(nodes) != 2 ||
nodes[0].Node != a.Config.NodeName ||
nodes[0].Services == nil || len(nodes[0].Services) != 1 ||
nodes[0].Checks == nil || len(nodes[0].Checks) != 1 ||
nodes[1].Node != "test" ||
nodes[1].Services == nil || len(nodes[1].Services) != 0 ||
nodes[1].Checks == nil || len(nodes[1].Checks) != 0 {
t.Fatalf("bad: %v", obj)
}
}
func TestUiNodes_Filter(t *testing.T) {
t.Parallel()
a := NewTestAgent(t, t.Name(), "")
defer a.Shutdown()
testrpc.WaitForTestAgent(t, a.RPC, "dc1")
args := &structs.RegisterRequest{
Datacenter: "dc1",
Node: "test",
Address: "127.0.0.1",
NodeMeta: map[string]string{
"os": "linux",
},
}
var out struct{}
require.NoError(t, a.RPC("Catalog.Register", args, &out))
args = &structs.RegisterRequest{
Datacenter: "dc1",
Node: "test2",
Address: "127.0.0.1",
NodeMeta: map[string]string{
"os": "macos",
},
}
require.NoError(t, a.RPC("Catalog.Register", args, &out))
req, _ := http.NewRequest("GET", "/v1/internal/ui/nodes/dc1?filter="+url.QueryEscape("Meta.os == linux"), nil)
resp := httptest.NewRecorder()
obj, err := a.srv.UINodes(resp, req)
require.NoError(t, err)
assertIndex(t, resp)
// Should be 2 nodes, and all the empty lists should be non-nil
nodes := obj.(structs.NodeDump)
require.Len(t, nodes, 1)
require.Equal(t, nodes[0].Node, "test")
require.Empty(t, nodes[0].Services)
require.Empty(t, nodes[0].Checks)
}
func TestUiNodeInfo(t *testing.T) {
t.Parallel()
a := NewTestAgent(t, t.Name(), "")
defer a.Shutdown()
testrpc.WaitForLeader(t, a.RPC, "dc1")
req, _ := http.NewRequest("GET", fmt.Sprintf("/v1/internal/ui/node/%s", a.Config.NodeName), nil)
resp := httptest.NewRecorder()
obj, err := a.srv.UINodeInfo(resp, req)
if err != nil {
t.Fatalf("err: %v", err)
}
assertIndex(t, resp)
// Should be 1 node for the server
node := obj.(*structs.NodeInfo)
if node.Node != a.Config.NodeName {
t.Fatalf("bad: %v", node)
}
args := &structs.RegisterRequest{
Datacenter: "dc1",
Node: "test",
Address: "127.0.0.1",
}
var out struct{}
if err := a.RPC("Catalog.Register", args, &out); err != nil {
t.Fatalf("err: %v", err)
}
req, _ = http.NewRequest("GET", "/v1/internal/ui/node/test", nil)
resp = httptest.NewRecorder()
obj, err = a.srv.UINodeInfo(resp, req)
if err != nil {
t.Fatalf("err: %v", err)
}
assertIndex(t, resp)
// Should be non-nil empty lists for services and checks
node = obj.(*structs.NodeInfo)
if node.Node != "test" ||
node.Services == nil || len(node.Services) != 0 ||
node.Checks == nil || len(node.Checks) != 0 {
t.Fatalf("bad: %v", node)
}
}
func TestUiServices(t *testing.T) {
t.Parallel()
a := NewTestAgent(t, t.Name(), "")
defer a.Shutdown()
testrpc.WaitForTestAgent(t, a.RPC, "dc1")
requests := []*structs.RegisterRequest{
// register foo node
&structs.RegisterRequest{
Datacenter: "dc1",
Node: "foo",
Address: "127.0.0.1",
Checks: structs.HealthChecks{
&structs.HealthCheck{
Node: "foo",
Name: "node check",
Status: api.HealthPassing,
},
},
},
//register api service on node foo
&structs.RegisterRequest{
Datacenter: "dc1",
Node: "foo",
SkipNodeUpdate: true,
Service: &structs.NodeService{
Kind: structs.ServiceKindTypical,
Service: "api",
Tags: []string{"tag1", "tag2"},
},
Checks: structs.HealthChecks{
&structs.HealthCheck{
Node: "foo",
Name: "api svc check",
ServiceName: "api",
Status: api.HealthWarning,
},
},
},
// register web svc on node foo
&structs.RegisterRequest{
Datacenter: "dc1",
Node: "foo",
SkipNodeUpdate: true,
Service: &structs.NodeService{
Kind: structs.ServiceKindConnectProxy,
Service: "web",
Tags: []string{},
Meta: map[string]string{metaExternalSource: "k8s"},
Port: 1234,
Proxy: structs.ConnectProxyConfig{
DestinationServiceName: "api",
},
},
Checks: structs.HealthChecks{
&structs.HealthCheck{
Node: "foo",
Name: "web svc check",
ServiceName: "web",
Status: api.HealthPassing,
},
},
},
// register bar node with service web
&structs.RegisterRequest{
Datacenter: "dc1",
Node: "bar",
Address: "127.0.0.2",
Service: &structs.NodeService{
Kind: structs.ServiceKindConnectProxy,
Service: "web",
Tags: []string{},
Meta: map[string]string{metaExternalSource: "k8s"},
Port: 1234,
Proxy: structs.ConnectProxyConfig{
DestinationServiceName: "api",
},
},
Checks: []*structs.HealthCheck{
&structs.HealthCheck{
Node: "bar",
Name: "web svc check",
Status: api.HealthCritical,
ServiceName: "web",
},
},
},
// register zip node with service cache
&structs.RegisterRequest{
Datacenter: "dc1",
Node: "zip",
Address: "127.0.0.3",
Service: &structs.NodeService{
Service: "cache",
Tags: []string{},
},
},
}
for _, args := range requests {
var out struct{}
require.NoError(t, a.RPC("Catalog.Register", args, &out))
}
t.Run("No Filter", func(t *testing.T) {
t.Parallel()
req, _ := http.NewRequest("GET", "/v1/internal/ui/services/dc1", nil)
resp := httptest.NewRecorder()
obj, err := a.srv.UIServices(resp, req)
require.NoError(t, err)
assertIndex(t, resp)
// Should be 2 nodes, and all the empty lists should be non-nil
summary := obj.([]*ServiceSummary)
require.Len(t, summary, 4)
// internal accounting that users don't see can be blown away
for _, sum := range summary {
sum.externalSourceSet = nil
}
expected := []*ServiceSummary{
&ServiceSummary{
Kind: structs.ServiceKindTypical,
Name: "api",
Tags: []string{"tag1", "tag2"},
Nodes: []string{"foo"},
ChecksPassing: 2,
ChecksWarning: 1,
ChecksCritical: 0,
EnterpriseMeta: *structs.DefaultEnterpriseMeta(),
},
&ServiceSummary{
Kind: structs.ServiceKindTypical,
Name: "cache",
Tags: nil,
Nodes: []string{"zip"},
ChecksPassing: 0,
ChecksWarning: 0,
ChecksCritical: 0,
EnterpriseMeta: *structs.DefaultEnterpriseMeta(),
},
&ServiceSummary{
Kind: structs.ServiceKindConnectProxy,
Name: "web",
Tags: nil,
Nodes: []string{"bar", "foo"},
ChecksPassing: 2,
ChecksWarning: 1,
ChecksCritical: 1,
ExternalSources: []string{"k8s"},
EnterpriseMeta: *structs.DefaultEnterpriseMeta(),
},
&ServiceSummary{
Kind: structs.ServiceKindTypical,
Name: "consul",
Tags: nil,
Nodes: []string{a.Config.NodeName},
ChecksPassing: 1,
ChecksWarning: 0,
ChecksCritical: 0,
EnterpriseMeta: *structs.DefaultEnterpriseMeta(),
},
}
require.ElementsMatch(t, expected, summary)
})
t.Run("Filtered", func(t *testing.T) {
filterQuery := url.QueryEscape("Service.Service == web or Service.Service == api")
req, _ := http.NewRequest("GET", "/v1/internal/ui/services?filter="+filterQuery, nil)
resp := httptest.NewRecorder()
obj, err := a.srv.UIServices(resp, req)
require.NoError(t, err)
assertIndex(t, resp)
// Should be 2 nodes, and all the empty lists should be non-nil
summary := obj.([]*ServiceSummary)
require.Len(t, summary, 2)
// internal accounting that users don't see can be blown away
for _, sum := range summary {
sum.externalSourceSet = nil
}
expected := []*ServiceSummary{
&ServiceSummary{
Kind: structs.ServiceKindTypical,
Name: "api",
Tags: []string{"tag1", "tag2"},
Nodes: []string{"foo"},
ChecksPassing: 2,
ChecksWarning: 1,
ChecksCritical: 0,
EnterpriseMeta: *structs.DefaultEnterpriseMeta(),
},
&ServiceSummary{
Kind: structs.ServiceKindConnectProxy,
Name: "web",
Tags: nil,
Nodes: []string{"bar", "foo"},
ChecksPassing: 2,
ChecksWarning: 1,
ChecksCritical: 1,
ExternalSources: []string{"k8s"},
EnterpriseMeta: *structs.DefaultEnterpriseMeta(),
},
}
require.ElementsMatch(t, expected, summary)
})
}