open-nomad/api/agent_test.go

379 lines
9.3 KiB
Go

package api
import (
"fmt"
"reflect"
"sort"
"strings"
"testing"
"time"
"github.com/kr/pretty"
"github.com/stretchr/testify/require"
"github.com/hashicorp/nomad/api/internal/testutil"
"github.com/stretchr/testify/assert"
)
func TestAgent_Self(t *testing.T) {
t.Parallel()
c, s := makeClient(t, nil, nil)
defer s.Stop()
// Get a handle on the Agent endpoints
a := c.Agent()
// Query the endpoint
res, err := a.Self()
if err != nil {
t.Fatalf("err: %s", err)
}
// Check that we got a valid response
if res.Member.Name == "" {
t.Fatalf("bad member name in response: %#v", res)
}
// Local cache was populated
if a.nodeName == "" || a.datacenter == "" || a.region == "" {
t.Fatalf("cache should be populated, got: %#v", a)
}
}
func TestAgent_NodeName(t *testing.T) {
t.Parallel()
c, s := makeClient(t, nil, nil)
defer s.Stop()
a := c.Agent()
// Query the agent for the node name
res, err := a.NodeName()
if err != nil {
t.Fatalf("err: %s", err)
}
if res == "" {
t.Fatalf("expected node name, got nothing")
}
}
func TestAgent_Datacenter(t *testing.T) {
t.Parallel()
c, s := makeClient(t, nil, nil)
defer s.Stop()
a := c.Agent()
// Query the agent for the datacenter
dc, err := a.Datacenter()
if err != nil {
t.Fatalf("err: %s", err)
}
if dc != "dc1" {
t.Fatalf("expected dc1, got: %q", dc)
}
}
func TestAgent_Join(t *testing.T) {
t.Parallel()
c1, s1 := makeClient(t, nil, nil)
defer s1.Stop()
a1 := c1.Agent()
_, s2 := makeClient(t, nil, func(c *testutil.TestServerConfig) {
c.Server.BootstrapExpect = 0
})
defer s2.Stop()
// Attempting to join a nonexistent host returns error
n, err := a1.Join("nope")
if err == nil {
t.Fatalf("expected error, got nothing")
}
if n != 0 {
t.Fatalf("expected 0 nodes, got: %d", n)
}
// Returns correctly if join succeeds
n, err = a1.Join(s2.SerfAddr)
if err != nil {
t.Fatalf("err: %s", err)
}
if n != 1 {
t.Fatalf("expected 1 node, got: %d", n)
}
}
func TestAgent_Members(t *testing.T) {
t.Parallel()
c, s := makeClient(t, nil, nil)
defer s.Stop()
a := c.Agent()
// Query nomad for all the known members
mem, err := a.Members()
if err != nil {
t.Fatalf("err: %s", err)
}
// Check that we got the expected result
if n := len(mem.Members); n != 1 {
t.Fatalf("expected 1 member, got: %d", n)
}
if m := mem.Members[0]; m.Name == "" || m.Addr == "" || m.Port == 0 {
t.Fatalf("bad member: %#v", m)
}
}
func TestAgent_ForceLeave(t *testing.T) {
t.Parallel()
c, s := makeClient(t, nil, nil)
defer s.Stop()
a := c.Agent()
// Force-leave on a nonexistent node does not error
if err := a.ForceLeave("nope"); err != nil {
t.Fatalf("err: %s", err)
}
// TODO: test force-leave on an existing node
}
func (a *AgentMember) String() string {
return "{Name: " + a.Name + " Region: " + a.Tags["region"] + " DC: " + a.Tags["dc"] + "}"
}
func TestAgents_Sort(t *testing.T) {
t.Parallel()
var sortTests = []struct {
in []*AgentMember
out []*AgentMember
}{
{
[]*AgentMember{
{Name: "nomad-2.vac.us-east",
Tags: map[string]string{"region": "us-east", "dc": "us-east-1c"}},
{Name: "nomad-1.global",
Tags: map[string]string{"region": "global", "dc": "dc1"}},
{Name: "nomad-1.vac.us-east",
Tags: map[string]string{"region": "us-east", "dc": "us-east-1c"}},
},
[]*AgentMember{
{Name: "nomad-1.global",
Tags: map[string]string{"region": "global", "dc": "dc1"}},
{Name: "nomad-1.vac.us-east",
Tags: map[string]string{"region": "us-east", "dc": "us-east-1c"}},
{Name: "nomad-2.vac.us-east",
Tags: map[string]string{"region": "us-east", "dc": "us-east-1c"}},
},
},
{
[]*AgentMember{
{Name: "nomad-02.tam.us-east",
Tags: map[string]string{"region": "us-east", "dc": "tampa"}},
{Name: "nomad-02.pal.us-west",
Tags: map[string]string{"region": "us-west", "dc": "palo_alto"}},
{Name: "nomad-01.pal.us-west",
Tags: map[string]string{"region": "us-west", "dc": "palo_alto"}},
{Name: "nomad-01.tam.us-east",
Tags: map[string]string{"region": "us-east", "dc": "tampa"}},
},
[]*AgentMember{
{Name: "nomad-01.tam.us-east",
Tags: map[string]string{"region": "us-east", "dc": "tampa"}},
{Name: "nomad-02.tam.us-east",
Tags: map[string]string{"region": "us-east", "dc": "tampa"}},
{Name: "nomad-01.pal.us-west",
Tags: map[string]string{"region": "us-west", "dc": "palo_alto"}},
{Name: "nomad-02.pal.us-west",
Tags: map[string]string{"region": "us-west", "dc": "palo_alto"}},
},
},
{
[]*AgentMember{
{Name: "nomad-02.tam.us-east",
Tags: map[string]string{"region": "us-east", "dc": "tampa"}},
{Name: "nomad-02.ams.europe",
Tags: map[string]string{"region": "europe", "dc": "amsterdam"}},
{Name: "nomad-01.tam.us-east",
Tags: map[string]string{"region": "us-east", "dc": "tampa"}},
{Name: "nomad-01.ams.europe",
Tags: map[string]string{"region": "europe", "dc": "amsterdam"}},
},
[]*AgentMember{
{Name: "nomad-01.ams.europe",
Tags: map[string]string{"region": "europe", "dc": "amsterdam"}},
{Name: "nomad-02.ams.europe",
Tags: map[string]string{"region": "europe", "dc": "amsterdam"}},
{Name: "nomad-01.tam.us-east",
Tags: map[string]string{"region": "us-east", "dc": "tampa"}},
{Name: "nomad-02.tam.us-east",
Tags: map[string]string{"region": "us-east", "dc": "tampa"}},
},
},
{
[]*AgentMember{
{Name: "nomad-02.ber.europe",
Tags: map[string]string{"region": "europe", "dc": "berlin"}},
{Name: "nomad-02.ams.europe",
Tags: map[string]string{"region": "europe", "dc": "amsterdam"}},
{Name: "nomad-01.ams.europe",
Tags: map[string]string{"region": "europe", "dc": "amsterdam"}},
{Name: "nomad-01.ber.europe",
Tags: map[string]string{"region": "europe", "dc": "berlin"}},
},
[]*AgentMember{
{Name: "nomad-01.ams.europe",
Tags: map[string]string{"region": "europe", "dc": "amsterdam"}},
{Name: "nomad-02.ams.europe",
Tags: map[string]string{"region": "europe", "dc": "amsterdam"}},
{Name: "nomad-01.ber.europe",
Tags: map[string]string{"region": "europe", "dc": "berlin"}},
{Name: "nomad-02.ber.europe",
Tags: map[string]string{"region": "europe", "dc": "berlin"}},
},
},
{
[]*AgentMember{
{Name: "nomad-1.global"},
{Name: "nomad-3.global"},
{Name: "nomad-2.global"},
},
[]*AgentMember{
{Name: "nomad-1.global"},
{Name: "nomad-2.global"},
{Name: "nomad-3.global"},
},
},
}
for _, tt := range sortTests {
sort.Sort(AgentMembersNameSort(tt.in))
if !reflect.DeepEqual(tt.in, tt.out) {
t.Errorf("\nexpected: %s\nget : %s", tt.in, tt.out)
}
}
}
func TestAgent_Health(t *testing.T) {
t.Parallel()
assert := assert.New(t)
c, s := makeClient(t, nil, nil)
defer s.Stop()
a := c.Agent()
health, err := a.Health()
assert.Nil(err)
assert.True(health.Server.Ok)
}
// TestAgent_MonitorWithNode tests the Monitor endpoint
// passing in a log level and node ie, which tests monitor
// functionality for a specific client node
func TestAgent_MonitorWithNode(t *testing.T) {
t.Parallel()
rpcPort := 0
c, s := makeClient(t, nil, func(c *testutil.TestServerConfig) {
rpcPort = c.Ports.RPC
c.Client = &testutil.ClientConfig{
Enabled: true,
}
})
defer s.Stop()
require.NoError(t, c.Agent().SetServers([]string{fmt.Sprintf("127.0.0.1:%d", rpcPort)}))
agent := c.Agent()
index := uint64(0)
var node *NodeListStub
// grab a node
testutil.WaitForResult(func() (bool, error) {
nodes, qm, err := c.Nodes().List(&QueryOptions{WaitIndex: index})
if err != nil {
return false, err
}
index = qm.LastIndex
if len(nodes) != 1 {
return false, fmt.Errorf("expected 1 node but found: %s", pretty.Sprint(nodes))
}
if nodes[0].Status != "ready" {
return false, fmt.Errorf("node not ready: %s", nodes[0].Status)
}
node = nodes[0]
return true, nil
}, func(err error) {
t.Fatalf("err: %v", err)
})
doneCh := make(chan struct{})
q := &QueryOptions{
Params: map[string]string{
"log_level": "debug",
"node_id": node.ID,
},
}
frames, errCh := agent.Monitor(doneCh, q)
defer close(doneCh)
// make a request to generate some logs
_, err := agent.NodeName()
require.NoError(t, err)
// Wait for a log message
OUTER:
for {
select {
case f := <-frames:
if strings.Contains(string(f.Data), "[DEBUG]") {
break OUTER
}
case err := <-errCh:
t.Errorf("Error: %v", err)
case <-time.After(2 * time.Second):
require.Fail(t, "failed to get a DEBUG log message")
}
}
}
// TestAgent_Monitor tests the Monitor endpoint
// passing in only a log level, which tests the servers
// monitor functionality
func TestAgent_Monitor(t *testing.T) {
t.Parallel()
c, s := makeClient(t, nil, nil)
defer s.Stop()
agent := c.Agent()
q := &QueryOptions{
Params: map[string]string{
"log_level": "debug",
},
}
doneCh := make(chan struct{})
frames, errCh := agent.Monitor(doneCh, q)
defer close(doneCh)
// make a request to generate some logs
_, err := agent.Region()
require.NoError(t, err)
// Wait for a log message
OUTER:
for {
select {
case log := <-frames:
if log == nil {
continue
}
if strings.Contains(string(log.Data), "[DEBUG]") {
break OUTER
}
case err := <-errCh:
t.Fatalf("error: %v", err)
case <-time.After(2 * time.Second):
require.Fail(t, "failed to get a DEBUG log message")
}
}
}