mirror of https://github.com/status-im/consul.git
856 lines
24 KiB
Go
856 lines
24 KiB
Go
package checks
|
|
|
|
import (
|
|
"bytes"
|
|
"fmt"
|
|
"io/ioutil"
|
|
"log"
|
|
"net"
|
|
"net/http"
|
|
"net/http/httptest"
|
|
"os"
|
|
"reflect"
|
|
"regexp"
|
|
"strings"
|
|
"testing"
|
|
"time"
|
|
|
|
"github.com/hashicorp/consul/agent/mock"
|
|
"github.com/hashicorp/consul/api"
|
|
"github.com/hashicorp/consul/sdk/testutil/retry"
|
|
"github.com/hashicorp/consul/types"
|
|
uuid "github.com/hashicorp/go-uuid"
|
|
)
|
|
|
|
func uniqueID() string {
|
|
id, err := uuid.GenerateUUID()
|
|
if err != nil {
|
|
panic(err)
|
|
}
|
|
return id
|
|
}
|
|
|
|
func TestCheckMonitor_Script(t *testing.T) {
|
|
tests := []struct {
|
|
script, status string
|
|
}{
|
|
{"exit 0", "passing"},
|
|
{"exit 1", "warning"},
|
|
{"exit 2", "critical"},
|
|
{"foobarbaz", "critical"},
|
|
}
|
|
|
|
for _, tt := range tests {
|
|
t.Run(tt.status, func(t *testing.T) {
|
|
notif := mock.NewNotify()
|
|
check := &CheckMonitor{
|
|
Notify: notif,
|
|
CheckID: types.CheckID("foo"),
|
|
Script: tt.script,
|
|
Interval: 25 * time.Millisecond,
|
|
Logger: log.New(ioutil.Discard, uniqueID(), log.LstdFlags),
|
|
OutputMaxSize: DefaultBufSize,
|
|
}
|
|
check.Start()
|
|
defer check.Stop()
|
|
retry.Run(t, func(r *retry.R) {
|
|
if got, want := notif.Updates("foo"), 2; got < want {
|
|
r.Fatalf("got %d updates want at least %d", got, want)
|
|
}
|
|
if got, want := notif.State("foo"), tt.status; got != want {
|
|
r.Fatalf("got state %q want %q", got, want)
|
|
}
|
|
})
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestCheckMonitor_Args(t *testing.T) {
|
|
tests := []struct {
|
|
args []string
|
|
status string
|
|
}{
|
|
{[]string{"sh", "-c", "exit 0"}, "passing"},
|
|
{[]string{"sh", "-c", "exit 1"}, "warning"},
|
|
{[]string{"sh", "-c", "exit 2"}, "critical"},
|
|
{[]string{"foobarbaz"}, "critical"},
|
|
}
|
|
|
|
for _, tt := range tests {
|
|
t.Run(tt.status, func(t *testing.T) {
|
|
notif := mock.NewNotify()
|
|
check := &CheckMonitor{
|
|
Notify: notif,
|
|
CheckID: types.CheckID("foo"),
|
|
ScriptArgs: tt.args,
|
|
Interval: 25 * time.Millisecond,
|
|
Logger: log.New(ioutil.Discard, uniqueID(), log.LstdFlags),
|
|
OutputMaxSize: DefaultBufSize,
|
|
}
|
|
check.Start()
|
|
defer check.Stop()
|
|
retry.Run(t, func(r *retry.R) {
|
|
if got, want := notif.Updates("foo"), 2; got < want {
|
|
r.Fatalf("got %d updates want at least %d", got, want)
|
|
}
|
|
if got, want := notif.State("foo"), tt.status; got != want {
|
|
r.Fatalf("got state %q want %q", got, want)
|
|
}
|
|
})
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestCheckMonitor_Timeout(t *testing.T) {
|
|
// t.Parallel() // timing test. no parallel
|
|
notif := mock.NewNotify()
|
|
check := &CheckMonitor{
|
|
Notify: notif,
|
|
CheckID: types.CheckID("foo"),
|
|
ScriptArgs: []string{"sh", "-c", "sleep 1 && exit 0"},
|
|
Interval: 50 * time.Millisecond,
|
|
Timeout: 25 * time.Millisecond,
|
|
Logger: log.New(ioutil.Discard, uniqueID(), log.LstdFlags),
|
|
OutputMaxSize: DefaultBufSize,
|
|
}
|
|
check.Start()
|
|
defer check.Stop()
|
|
|
|
time.Sleep(250 * time.Millisecond)
|
|
|
|
// Should have at least 2 updates
|
|
if notif.Updates("foo") < 2 {
|
|
t.Fatalf("should have at least 2 updates %v", notif.UpdatesMap())
|
|
}
|
|
if notif.State("foo") != "critical" {
|
|
t.Fatalf("should be critical %v", notif.StateMap())
|
|
}
|
|
}
|
|
|
|
func TestCheckMonitor_RandomStagger(t *testing.T) {
|
|
// t.Parallel() // timing test. no parallel
|
|
notif := mock.NewNotify()
|
|
check := &CheckMonitor{
|
|
Notify: notif,
|
|
CheckID: types.CheckID("foo"),
|
|
ScriptArgs: []string{"sh", "-c", "exit 0"},
|
|
Interval: 25 * time.Millisecond,
|
|
Logger: log.New(ioutil.Discard, uniqueID(), log.LstdFlags),
|
|
OutputMaxSize: DefaultBufSize,
|
|
}
|
|
check.Start()
|
|
defer check.Stop()
|
|
|
|
time.Sleep(500 * time.Millisecond)
|
|
|
|
// Should have at least 1 update
|
|
if notif.Updates("foo") < 1 {
|
|
t.Fatalf("should have 1 or more updates %v", notif.UpdatesMap())
|
|
}
|
|
|
|
if notif.State("foo") != api.HealthPassing {
|
|
t.Fatalf("should be %v %v", api.HealthPassing, notif.StateMap())
|
|
}
|
|
}
|
|
|
|
func TestCheckMonitor_LimitOutput(t *testing.T) {
|
|
t.Parallel()
|
|
notif := mock.NewNotify()
|
|
check := &CheckMonitor{
|
|
Notify: notif,
|
|
CheckID: types.CheckID("foo"),
|
|
ScriptArgs: []string{"od", "-N", "81920", "/dev/urandom"},
|
|
Interval: 25 * time.Millisecond,
|
|
Logger: log.New(ioutil.Discard, uniqueID(), log.LstdFlags),
|
|
OutputMaxSize: DefaultBufSize,
|
|
}
|
|
check.Start()
|
|
defer check.Stop()
|
|
|
|
time.Sleep(50 * time.Millisecond)
|
|
|
|
// Allow for extra bytes for the truncation message
|
|
if len(notif.Output("foo")) > DefaultBufSize+100 {
|
|
t.Fatalf("output size is too long")
|
|
}
|
|
}
|
|
|
|
func TestCheckTTL(t *testing.T) {
|
|
// t.Parallel() // timing test. no parallel
|
|
notif := mock.NewNotify()
|
|
check := &CheckTTL{
|
|
Notify: notif,
|
|
CheckID: types.CheckID("foo"),
|
|
TTL: 200 * time.Millisecond,
|
|
Logger: log.New(ioutil.Discard, uniqueID(), log.LstdFlags),
|
|
}
|
|
check.Start()
|
|
defer check.Stop()
|
|
|
|
time.Sleep(100 * time.Millisecond)
|
|
check.SetStatus(api.HealthPassing, "test-output")
|
|
|
|
if notif.Updates("foo") != 1 {
|
|
t.Fatalf("should have 1 updates %v", notif.UpdatesMap())
|
|
}
|
|
|
|
if notif.State("foo") != api.HealthPassing {
|
|
t.Fatalf("should be passing %v", notif.StateMap())
|
|
}
|
|
|
|
// Ensure we don't fail early
|
|
time.Sleep(150 * time.Millisecond)
|
|
if notif.Updates("foo") != 1 {
|
|
t.Fatalf("should have 1 updates %v", notif.UpdatesMap())
|
|
}
|
|
|
|
// Wait for the TTL to expire
|
|
time.Sleep(150 * time.Millisecond)
|
|
|
|
if notif.Updates("foo") != 2 {
|
|
t.Fatalf("should have 2 updates %v", notif.UpdatesMap())
|
|
}
|
|
|
|
if notif.State("foo") != api.HealthCritical {
|
|
t.Fatalf("should be critical %v", notif.StateMap())
|
|
}
|
|
|
|
if !strings.Contains(notif.Output("foo"), "test-output") {
|
|
t.Fatalf("should have retained output %v", notif.OutputMap())
|
|
}
|
|
}
|
|
|
|
func TestCheckHTTP(t *testing.T) {
|
|
t.Parallel()
|
|
|
|
tests := []struct {
|
|
desc string
|
|
code int
|
|
method string
|
|
header http.Header
|
|
status string
|
|
}{
|
|
// passing
|
|
{code: 200, status: api.HealthPassing},
|
|
{code: 201, status: api.HealthPassing},
|
|
{code: 250, status: api.HealthPassing},
|
|
{code: 299, status: api.HealthPassing},
|
|
|
|
// warning
|
|
{code: 429, status: api.HealthWarning},
|
|
|
|
// critical
|
|
{code: 150, status: api.HealthCritical},
|
|
{code: 199, status: api.HealthCritical},
|
|
{code: 300, status: api.HealthCritical},
|
|
{code: 400, status: api.HealthCritical},
|
|
{code: 500, status: api.HealthCritical},
|
|
|
|
// custom method
|
|
{desc: "custom method GET", code: 200, method: "GET", status: api.HealthPassing},
|
|
{desc: "custom method POST", code: 200, header: http.Header{"Content-Length": []string{"0"}}, method: "POST", status: api.HealthPassing},
|
|
{desc: "custom method abc", code: 200, method: "abc", status: api.HealthPassing},
|
|
|
|
// custom header
|
|
{desc: "custom header", code: 200, header: http.Header{"A": []string{"b", "c"}}, status: api.HealthPassing},
|
|
{desc: "host header", code: 200, header: http.Header{"Host": []string{"a"}}, status: api.HealthPassing},
|
|
}
|
|
|
|
for _, tt := range tests {
|
|
desc := tt.desc
|
|
if desc == "" {
|
|
desc = fmt.Sprintf("code %d -> status %s", tt.code, tt.status)
|
|
}
|
|
t.Run(desc, func(t *testing.T) {
|
|
server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
|
|
if tt.method != "" && tt.method != r.Method {
|
|
w.WriteHeader(999)
|
|
return
|
|
}
|
|
|
|
expectedHeader := http.Header{
|
|
"Accept": []string{"text/plain, text/*, */*"},
|
|
"Accept-Encoding": []string{"gzip"},
|
|
"Connection": []string{"close"},
|
|
"User-Agent": []string{"Consul Health Check"},
|
|
}
|
|
for k, v := range tt.header {
|
|
expectedHeader[k] = v
|
|
}
|
|
|
|
// the Host header is in r.Host and not in the headers
|
|
host := expectedHeader.Get("Host")
|
|
if host != "" && host != r.Host {
|
|
w.WriteHeader(999)
|
|
return
|
|
}
|
|
expectedHeader.Del("Host")
|
|
|
|
if !reflect.DeepEqual(expectedHeader, r.Header) {
|
|
w.WriteHeader(999)
|
|
return
|
|
}
|
|
|
|
// Body larger than 4k limit
|
|
body := bytes.Repeat([]byte{'a'}, 2*DefaultBufSize)
|
|
w.WriteHeader(tt.code)
|
|
w.Write(body)
|
|
}))
|
|
defer server.Close()
|
|
|
|
notif := mock.NewNotify()
|
|
check := &CheckHTTP{
|
|
Notify: notif,
|
|
CheckID: types.CheckID("foo"),
|
|
HTTP: server.URL,
|
|
Method: tt.method,
|
|
OutputMaxSize: DefaultBufSize,
|
|
Header: tt.header,
|
|
Interval: 10 * time.Millisecond,
|
|
Logger: log.New(ioutil.Discard, uniqueID(), log.LstdFlags),
|
|
}
|
|
check.Start()
|
|
defer check.Stop()
|
|
|
|
retry.Run(t, func(r *retry.R) {
|
|
if got, want := notif.Updates("foo"), 2; got < want {
|
|
r.Fatalf("got %d updates want at least %d", got, want)
|
|
}
|
|
if got, want := notif.State("foo"), tt.status; got != want {
|
|
r.Fatalf("got state %q want %q", got, want)
|
|
}
|
|
// Allow slightly more data than DefaultBufSize, for the header
|
|
if n := len(notif.Output("foo")); n > (DefaultBufSize + 256) {
|
|
r.Fatalf("output too long: %d (%d-byte limit)", n, DefaultBufSize)
|
|
}
|
|
})
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestCheckMaxOutputSize(t *testing.T) {
|
|
t.Parallel()
|
|
timeout := 5 * time.Millisecond
|
|
server := httptest.NewServer(http.HandlerFunc(func(writer http.ResponseWriter, req *http.Request) {
|
|
body := bytes.Repeat([]byte{'x'}, 2*DefaultBufSize)
|
|
writer.WriteHeader(200)
|
|
writer.Write(body)
|
|
}))
|
|
defer server.Close()
|
|
|
|
notif := mock.NewNotify()
|
|
maxOutputSize := 32
|
|
check := &CheckHTTP{
|
|
Notify: notif,
|
|
CheckID: types.CheckID("bar"),
|
|
HTTP: server.URL + "/v1/agent/self",
|
|
Timeout: timeout,
|
|
Interval: 2 * time.Millisecond,
|
|
Logger: log.New(ioutil.Discard, uniqueID(), log.LstdFlags),
|
|
OutputMaxSize: maxOutputSize,
|
|
}
|
|
|
|
check.Start()
|
|
defer check.Stop()
|
|
retry.Run(t, func(r *retry.R) {
|
|
if got, want := notif.Updates("bar"), 2; got < want {
|
|
r.Fatalf("got %d updates want at least %d", got, want)
|
|
}
|
|
if got, want := notif.State("bar"), api.HealthPassing; got != want {
|
|
r.Fatalf("got state %q want %q", got, want)
|
|
}
|
|
if got, want := notif.Output("bar"), "HTTP GET "+server.URL+"/v1/agent/self: 200 OK Output: "+strings.Repeat("x", maxOutputSize); got != want {
|
|
r.Fatalf("got state %q want %q", got, want)
|
|
}
|
|
})
|
|
}
|
|
|
|
func TestCheckHTTPTimeout(t *testing.T) {
|
|
t.Parallel()
|
|
timeout := 5 * time.Millisecond
|
|
server := httptest.NewServer(http.HandlerFunc(func(http.ResponseWriter, *http.Request) {
|
|
time.Sleep(2 * timeout)
|
|
}))
|
|
defer server.Close()
|
|
|
|
notif := mock.NewNotify()
|
|
check := &CheckHTTP{
|
|
Notify: notif,
|
|
CheckID: types.CheckID("bar"),
|
|
HTTP: server.URL,
|
|
Timeout: timeout,
|
|
Interval: 10 * time.Millisecond,
|
|
Logger: log.New(ioutil.Discard, uniqueID(), log.LstdFlags),
|
|
}
|
|
|
|
check.Start()
|
|
defer check.Stop()
|
|
retry.Run(t, func(r *retry.R) {
|
|
if got, want := notif.Updates("bar"), 2; got < want {
|
|
r.Fatalf("got %d updates want at least %d", got, want)
|
|
}
|
|
if got, want := notif.State("bar"), api.HealthCritical; got != want {
|
|
r.Fatalf("got state %q want %q", got, want)
|
|
}
|
|
})
|
|
}
|
|
|
|
func TestCheckHTTP_disablesKeepAlives(t *testing.T) {
|
|
t.Parallel()
|
|
check := &CheckHTTP{
|
|
CheckID: types.CheckID("foo"),
|
|
HTTP: "http://foo.bar/baz",
|
|
Interval: 10 * time.Second,
|
|
Logger: log.New(ioutil.Discard, uniqueID(), log.LstdFlags),
|
|
}
|
|
|
|
check.Start()
|
|
defer check.Stop()
|
|
|
|
if !check.httpClient.Transport.(*http.Transport).DisableKeepAlives {
|
|
t.Fatalf("should have disabled keepalives")
|
|
}
|
|
}
|
|
|
|
func largeBodyHandler(code int) http.Handler {
|
|
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
|
|
// Body larger than 4k limit
|
|
body := bytes.Repeat([]byte{'a'}, 2*DefaultBufSize)
|
|
w.WriteHeader(code)
|
|
w.Write(body)
|
|
})
|
|
}
|
|
|
|
func TestCheckHTTP_TLS_SkipVerify(t *testing.T) {
|
|
t.Parallel()
|
|
server := httptest.NewTLSServer(largeBodyHandler(200))
|
|
defer server.Close()
|
|
|
|
tlsConfig := &api.TLSConfig{
|
|
InsecureSkipVerify: true,
|
|
}
|
|
tlsClientConfig, err := api.SetupTLSConfig(tlsConfig)
|
|
if err != nil {
|
|
t.Fatalf("err: %v", err)
|
|
}
|
|
|
|
notif := mock.NewNotify()
|
|
check := &CheckHTTP{
|
|
Notify: notif,
|
|
CheckID: types.CheckID("skipverify_true"),
|
|
HTTP: server.URL,
|
|
Interval: 25 * time.Millisecond,
|
|
Logger: log.New(ioutil.Discard, uniqueID(), log.LstdFlags),
|
|
TLSClientConfig: tlsClientConfig,
|
|
}
|
|
|
|
check.Start()
|
|
defer check.Stop()
|
|
|
|
if !check.httpClient.Transport.(*http.Transport).TLSClientConfig.InsecureSkipVerify {
|
|
t.Fatalf("should be true")
|
|
}
|
|
|
|
retry.Run(t, func(r *retry.R) {
|
|
if got, want := notif.State("skipverify_true"), api.HealthPassing; got != want {
|
|
r.Fatalf("got state %q want %q", got, want)
|
|
}
|
|
})
|
|
}
|
|
|
|
func TestCheckHTTP_TLS_BadVerify(t *testing.T) {
|
|
t.Parallel()
|
|
server := httptest.NewTLSServer(largeBodyHandler(200))
|
|
defer server.Close()
|
|
|
|
tlsClientConfig, err := api.SetupTLSConfig(&api.TLSConfig{})
|
|
if err != nil {
|
|
t.Fatalf("err: %v", err)
|
|
}
|
|
|
|
notif := mock.NewNotify()
|
|
check := &CheckHTTP{
|
|
Notify: notif,
|
|
CheckID: types.CheckID("skipverify_false"),
|
|
HTTP: server.URL,
|
|
Interval: 100 * time.Millisecond,
|
|
Logger: log.New(ioutil.Discard, uniqueID(), log.LstdFlags),
|
|
TLSClientConfig: tlsClientConfig,
|
|
}
|
|
|
|
check.Start()
|
|
defer check.Stop()
|
|
|
|
if check.httpClient.Transport.(*http.Transport).TLSClientConfig.InsecureSkipVerify {
|
|
t.Fatalf("should default to false")
|
|
}
|
|
|
|
retry.Run(t, func(r *retry.R) {
|
|
// This should fail due to an invalid SSL cert
|
|
if got, want := notif.State("skipverify_false"), api.HealthCritical; got != want {
|
|
r.Fatalf("got state %q want %q", got, want)
|
|
}
|
|
if !strings.Contains(notif.Output("skipverify_false"), "certificate signed by unknown authority") {
|
|
r.Fatalf("should fail with certificate error %v", notif.OutputMap())
|
|
}
|
|
})
|
|
}
|
|
|
|
func mockTCPServer(network string) net.Listener {
|
|
var (
|
|
addr string
|
|
)
|
|
|
|
if network == `tcp6` {
|
|
addr = `[::1]:0`
|
|
} else {
|
|
addr = `127.0.0.1:0`
|
|
}
|
|
|
|
listener, err := net.Listen(network, addr)
|
|
if err != nil {
|
|
panic(err)
|
|
}
|
|
|
|
return listener
|
|
}
|
|
|
|
func expectTCPStatus(t *testing.T, tcp string, status string) {
|
|
notif := mock.NewNotify()
|
|
check := &CheckTCP{
|
|
Notify: notif,
|
|
CheckID: types.CheckID("foo"),
|
|
TCP: tcp,
|
|
Interval: 10 * time.Millisecond,
|
|
Logger: log.New(ioutil.Discard, uniqueID(), log.LstdFlags),
|
|
}
|
|
check.Start()
|
|
defer check.Stop()
|
|
retry.Run(t, func(r *retry.R) {
|
|
if got, want := notif.Updates("foo"), 2; got < want {
|
|
r.Fatalf("got %d updates want at least %d", got, want)
|
|
}
|
|
if got, want := notif.State("foo"), status; got != want {
|
|
r.Fatalf("got state %q want %q", got, want)
|
|
}
|
|
})
|
|
}
|
|
|
|
func TestCheckTCPCritical(t *testing.T) {
|
|
t.Parallel()
|
|
var (
|
|
tcpServer net.Listener
|
|
)
|
|
|
|
tcpServer = mockTCPServer(`tcp`)
|
|
expectTCPStatus(t, `127.0.0.1:0`, api.HealthCritical)
|
|
tcpServer.Close()
|
|
}
|
|
|
|
func TestCheckTCPPassing(t *testing.T) {
|
|
t.Parallel()
|
|
var (
|
|
tcpServer net.Listener
|
|
)
|
|
|
|
tcpServer = mockTCPServer(`tcp`)
|
|
expectTCPStatus(t, tcpServer.Addr().String(), api.HealthPassing)
|
|
tcpServer.Close()
|
|
|
|
if os.Getenv("TRAVIS") == "true" {
|
|
t.Skip("IPV6 not supported on travis-ci")
|
|
}
|
|
if os.Getenv("CIRCLECI") == "true" {
|
|
t.Skip("IPV6 not supported on CircleCI")
|
|
}
|
|
tcpServer = mockTCPServer(`tcp6`)
|
|
expectTCPStatus(t, tcpServer.Addr().String(), api.HealthPassing)
|
|
tcpServer.Close()
|
|
}
|
|
|
|
func TestCheck_Docker(t *testing.T) {
|
|
tests := []struct {
|
|
desc string
|
|
handlers map[string]http.HandlerFunc
|
|
out *regexp.Regexp
|
|
state string
|
|
}{
|
|
{
|
|
desc: "create exec: bad container id",
|
|
handlers: map[string]http.HandlerFunc{
|
|
"POST /containers/123/exec": func(w http.ResponseWriter, r *http.Request) {
|
|
w.WriteHeader(404)
|
|
},
|
|
},
|
|
out: regexp.MustCompile("^create exec failed for unknown container 123$"),
|
|
state: api.HealthCritical,
|
|
},
|
|
{
|
|
desc: "create exec: paused container",
|
|
handlers: map[string]http.HandlerFunc{
|
|
"POST /containers/123/exec": func(w http.ResponseWriter, r *http.Request) {
|
|
w.WriteHeader(409)
|
|
},
|
|
},
|
|
out: regexp.MustCompile("^create exec failed since container 123 is paused or stopped$"),
|
|
state: api.HealthCritical,
|
|
},
|
|
{
|
|
desc: "create exec: bad status code",
|
|
handlers: map[string]http.HandlerFunc{
|
|
"POST /containers/123/exec": func(w http.ResponseWriter, r *http.Request) {
|
|
w.WriteHeader(999)
|
|
fmt.Fprint(w, "some output")
|
|
},
|
|
},
|
|
out: regexp.MustCompile("^create exec failed for container 123 with status 999: some output$"),
|
|
state: api.HealthCritical,
|
|
},
|
|
{
|
|
desc: "create exec: bad json",
|
|
handlers: map[string]http.HandlerFunc{
|
|
"POST /containers/123/exec": func(w http.ResponseWriter, r *http.Request) {
|
|
w.WriteHeader(201)
|
|
w.Header().Set("Content-Type", "application/json")
|
|
fmt.Fprint(w, `this is not json`)
|
|
},
|
|
},
|
|
out: regexp.MustCompile("^create exec response for container 123 cannot be parsed: .*$"),
|
|
state: api.HealthCritical,
|
|
},
|
|
{
|
|
desc: "start exec: bad exec id",
|
|
handlers: map[string]http.HandlerFunc{
|
|
"POST /containers/123/exec": func(w http.ResponseWriter, r *http.Request) {
|
|
w.WriteHeader(201)
|
|
w.Header().Set("Content-Type", "application/json")
|
|
fmt.Fprint(w, `{"Id":"456"}`)
|
|
},
|
|
"POST /exec/456/start": func(w http.ResponseWriter, r *http.Request) {
|
|
w.WriteHeader(404)
|
|
},
|
|
},
|
|
out: regexp.MustCompile("^start exec failed for container 123: invalid exec id 456$"),
|
|
state: api.HealthCritical,
|
|
},
|
|
{
|
|
desc: "start exec: paused container",
|
|
handlers: map[string]http.HandlerFunc{
|
|
"POST /containers/123/exec": func(w http.ResponseWriter, r *http.Request) {
|
|
w.WriteHeader(201)
|
|
w.Header().Set("Content-Type", "application/json")
|
|
fmt.Fprint(w, `{"Id":"456"}`)
|
|
},
|
|
"POST /exec/456/start": func(w http.ResponseWriter, r *http.Request) {
|
|
w.WriteHeader(409)
|
|
},
|
|
},
|
|
out: regexp.MustCompile("^start exec failed since container 123 is paused or stopped$"),
|
|
state: api.HealthCritical,
|
|
},
|
|
{
|
|
desc: "start exec: bad status code",
|
|
handlers: map[string]http.HandlerFunc{
|
|
"POST /containers/123/exec": func(w http.ResponseWriter, r *http.Request) {
|
|
w.WriteHeader(201)
|
|
w.Header().Set("Content-Type", "application/json")
|
|
fmt.Fprint(w, `{"Id":"456"}`)
|
|
},
|
|
"POST /exec/456/start": func(w http.ResponseWriter, r *http.Request) {
|
|
w.WriteHeader(999)
|
|
fmt.Fprint(w, "some output")
|
|
},
|
|
},
|
|
out: regexp.MustCompile("^start exec failed for container 123 with status 999: body: some output err: <nil>$"),
|
|
state: api.HealthCritical,
|
|
},
|
|
{
|
|
desc: "inspect exec: bad exec id",
|
|
handlers: map[string]http.HandlerFunc{
|
|
"POST /containers/123/exec": func(w http.ResponseWriter, r *http.Request) {
|
|
w.WriteHeader(201)
|
|
w.Header().Set("Content-Type", "application/json")
|
|
fmt.Fprint(w, `{"Id":"456"}`)
|
|
},
|
|
"POST /exec/456/start": func(w http.ResponseWriter, r *http.Request) {
|
|
w.WriteHeader(200)
|
|
fmt.Fprint(w, "OK")
|
|
},
|
|
"GET /exec/456/json": func(w http.ResponseWriter, r *http.Request) {
|
|
w.WriteHeader(404)
|
|
},
|
|
},
|
|
out: regexp.MustCompile("^inspect exec failed for container 123: invalid exec id 456$"),
|
|
state: api.HealthCritical,
|
|
},
|
|
{
|
|
desc: "inspect exec: bad status code",
|
|
handlers: map[string]http.HandlerFunc{
|
|
"POST /containers/123/exec": func(w http.ResponseWriter, r *http.Request) {
|
|
w.WriteHeader(201)
|
|
w.Header().Set("Content-Type", "application/json")
|
|
fmt.Fprint(w, `{"Id":"456"}`)
|
|
},
|
|
"POST /exec/456/start": func(w http.ResponseWriter, r *http.Request) {
|
|
w.WriteHeader(200)
|
|
fmt.Fprint(w, "OK")
|
|
},
|
|
"GET /exec/456/json": func(w http.ResponseWriter, r *http.Request) {
|
|
w.WriteHeader(999)
|
|
fmt.Fprint(w, "some output")
|
|
},
|
|
},
|
|
out: regexp.MustCompile("^inspect exec failed for container 123 with status 999: some output$"),
|
|
state: api.HealthCritical,
|
|
},
|
|
{
|
|
desc: "inspect exec: bad json",
|
|
handlers: map[string]http.HandlerFunc{
|
|
"POST /containers/123/exec": func(w http.ResponseWriter, r *http.Request) {
|
|
w.WriteHeader(201)
|
|
w.Header().Set("Content-Type", "application/json")
|
|
fmt.Fprint(w, `{"Id":"456"}`)
|
|
},
|
|
"POST /exec/456/start": func(w http.ResponseWriter, r *http.Request) {
|
|
w.WriteHeader(200)
|
|
fmt.Fprint(w, "OK")
|
|
},
|
|
"GET /exec/456/json": func(w http.ResponseWriter, r *http.Request) {
|
|
w.WriteHeader(200)
|
|
w.Header().Set("Content-Type", "application/json")
|
|
fmt.Fprint(w, `this is not json`)
|
|
},
|
|
},
|
|
out: regexp.MustCompile("^inspect exec response for container 123 cannot be parsed: .*$"),
|
|
state: api.HealthCritical,
|
|
},
|
|
{
|
|
desc: "inspect exec: exit code 0: passing",
|
|
handlers: map[string]http.HandlerFunc{
|
|
"POST /containers/123/exec": func(w http.ResponseWriter, r *http.Request) {
|
|
w.WriteHeader(201)
|
|
w.Header().Set("Content-Type", "application/json")
|
|
fmt.Fprint(w, `{"Id":"456"}`)
|
|
},
|
|
"POST /exec/456/start": func(w http.ResponseWriter, r *http.Request) {
|
|
w.WriteHeader(200)
|
|
fmt.Fprint(w, "OK")
|
|
},
|
|
"GET /exec/456/json": func(w http.ResponseWriter, r *http.Request) {
|
|
w.WriteHeader(200)
|
|
w.Header().Set("Content-Type", "application/json")
|
|
fmt.Fprint(w, `{"ExitCode":0}`)
|
|
},
|
|
},
|
|
out: regexp.MustCompile("^OK$"),
|
|
state: api.HealthPassing,
|
|
},
|
|
{
|
|
desc: "inspect exec: exit code 0: passing: truncated",
|
|
handlers: map[string]http.HandlerFunc{
|
|
"POST /containers/123/exec": func(w http.ResponseWriter, r *http.Request) {
|
|
w.WriteHeader(201)
|
|
w.Header().Set("Content-Type", "application/json")
|
|
fmt.Fprint(w, `{"Id":"456"}`)
|
|
},
|
|
"POST /exec/456/start": func(w http.ResponseWriter, r *http.Request) {
|
|
w.WriteHeader(200)
|
|
fmt.Fprint(w, "01234567890123456789OK") // more than 20 bytes
|
|
},
|
|
"GET /exec/456/json": func(w http.ResponseWriter, r *http.Request) {
|
|
w.WriteHeader(200)
|
|
w.Header().Set("Content-Type", "application/json")
|
|
fmt.Fprint(w, `{"ExitCode":0}`)
|
|
},
|
|
},
|
|
out: regexp.MustCompile("^Captured 20 of 22 bytes\n...\n234567890123456789OK$"),
|
|
state: api.HealthPassing,
|
|
},
|
|
{
|
|
desc: "inspect exec: exit code 1: warning",
|
|
handlers: map[string]http.HandlerFunc{
|
|
"POST /containers/123/exec": func(w http.ResponseWriter, r *http.Request) {
|
|
w.WriteHeader(201)
|
|
w.Header().Set("Content-Type", "application/json")
|
|
fmt.Fprint(w, `{"Id":"456"}`)
|
|
},
|
|
"POST /exec/456/start": func(w http.ResponseWriter, r *http.Request) {
|
|
w.WriteHeader(200)
|
|
fmt.Fprint(w, "WARN")
|
|
},
|
|
"GET /exec/456/json": func(w http.ResponseWriter, r *http.Request) {
|
|
w.WriteHeader(200)
|
|
w.Header().Set("Content-Type", "application/json")
|
|
fmt.Fprint(w, `{"ExitCode":1}`)
|
|
},
|
|
},
|
|
out: regexp.MustCompile("^WARN$"),
|
|
state: api.HealthWarning,
|
|
},
|
|
{
|
|
desc: "inspect exec: exit code 2: critical",
|
|
handlers: map[string]http.HandlerFunc{
|
|
"POST /containers/123/exec": func(w http.ResponseWriter, r *http.Request) {
|
|
w.WriteHeader(201)
|
|
w.Header().Set("Content-Type", "application/json")
|
|
fmt.Fprint(w, `{"Id":"456"}`)
|
|
},
|
|
"POST /exec/456/start": func(w http.ResponseWriter, r *http.Request) {
|
|
w.WriteHeader(200)
|
|
fmt.Fprint(w, "NOK")
|
|
},
|
|
"GET /exec/456/json": func(w http.ResponseWriter, r *http.Request) {
|
|
w.WriteHeader(200)
|
|
w.Header().Set("Content-Type", "application/json")
|
|
fmt.Fprint(w, `{"ExitCode":2}`)
|
|
},
|
|
},
|
|
out: regexp.MustCompile("^NOK$"),
|
|
state: api.HealthCritical,
|
|
},
|
|
}
|
|
|
|
for _, tt := range tests {
|
|
t.Run(tt.desc, func(t *testing.T) {
|
|
srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
|
|
x := r.Method + " " + r.RequestURI
|
|
h := tt.handlers[x]
|
|
if h == nil {
|
|
t.Fatalf("bad url %s", x)
|
|
}
|
|
h(w, r)
|
|
}))
|
|
defer srv.Close()
|
|
|
|
// create a docker client with a tiny output buffer
|
|
// to test the truncation
|
|
c, err := NewDockerClient(srv.URL, 20)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
notif, upd := mock.NewNotifyChan()
|
|
id := types.CheckID("chk")
|
|
check := &CheckDocker{
|
|
Notify: notif,
|
|
CheckID: id,
|
|
ScriptArgs: []string{"/health.sh"},
|
|
DockerContainerID: "123",
|
|
Interval: 25 * time.Millisecond,
|
|
Client: c,
|
|
}
|
|
check.Start()
|
|
defer check.Stop()
|
|
|
|
<-upd // wait for update
|
|
|
|
if got, want := notif.Output(id), tt.out; !want.MatchString(got) {
|
|
t.Fatalf("got %q want %q", got, want)
|
|
}
|
|
if got, want := notif.State(id), tt.state; got != want {
|
|
t.Fatalf("got status %q want %q", got, want)
|
|
}
|
|
})
|
|
}
|
|
}
|