934 lines
26 KiB
Go
934 lines
26 KiB
Go
package checks
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import (
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"bytes"
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"fmt"
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"io/ioutil"
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"log"
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"net"
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"net/http"
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"net/http/httptest"
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"os"
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"reflect"
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"regexp"
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"strings"
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"testing"
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"time"
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"github.com/hashicorp/consul/agent/mock"
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"github.com/hashicorp/consul/api"
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"github.com/hashicorp/consul/sdk/testutil/retry"
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"github.com/hashicorp/consul/types"
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uuid "github.com/hashicorp/go-uuid"
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)
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func uniqueID() string {
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id, err := uuid.GenerateUUID()
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if err != nil {
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panic(err)
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}
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return id
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}
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func TestCheckMonitor_Script(t *testing.T) {
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tests := []struct {
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script, status string
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}{
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{"exit 0", "passing"},
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{"exit 1", "warning"},
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{"exit 2", "critical"},
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{"foobarbaz", "critical"},
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}
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for _, tt := range tests {
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t.Run(tt.status, func(t *testing.T) {
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notif := mock.NewNotify()
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check := &CheckMonitor{
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Notify: notif,
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CheckID: types.CheckID("foo"),
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Script: tt.script,
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Interval: 25 * time.Millisecond,
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Logger: log.New(ioutil.Discard, uniqueID(), log.LstdFlags),
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OutputMaxSize: DefaultBufSize,
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}
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check.Start()
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defer check.Stop()
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retry.Run(t, func(r *retry.R) {
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if got, want := notif.Updates("foo"), 2; got < want {
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r.Fatalf("got %d updates want at least %d", got, want)
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}
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if got, want := notif.State("foo"), tt.status; got != want {
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r.Fatalf("got state %q want %q", got, want)
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}
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})
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})
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}
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}
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func TestCheckMonitor_Args(t *testing.T) {
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tests := []struct {
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args []string
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status string
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}{
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{[]string{"sh", "-c", "exit 0"}, "passing"},
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{[]string{"sh", "-c", "exit 1"}, "warning"},
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{[]string{"sh", "-c", "exit 2"}, "critical"},
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{[]string{"foobarbaz"}, "critical"},
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}
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for _, tt := range tests {
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t.Run(tt.status, func(t *testing.T) {
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notif := mock.NewNotify()
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check := &CheckMonitor{
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Notify: notif,
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CheckID: types.CheckID("foo"),
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ScriptArgs: tt.args,
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Interval: 25 * time.Millisecond,
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Logger: log.New(ioutil.Discard, uniqueID(), log.LstdFlags),
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OutputMaxSize: DefaultBufSize,
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}
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check.Start()
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defer check.Stop()
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retry.Run(t, func(r *retry.R) {
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if got, want := notif.Updates("foo"), 2; got < want {
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r.Fatalf("got %d updates want at least %d", got, want)
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}
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if got, want := notif.State("foo"), tt.status; got != want {
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r.Fatalf("got state %q want %q", got, want)
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}
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})
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})
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}
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}
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func TestCheckMonitor_Timeout(t *testing.T) {
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// t.Parallel() // timing test. no parallel
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notif := mock.NewNotify()
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check := &CheckMonitor{
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Notify: notif,
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CheckID: types.CheckID("foo"),
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ScriptArgs: []string{"sh", "-c", "sleep 1 && exit 0"},
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Interval: 50 * time.Millisecond,
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Timeout: 25 * time.Millisecond,
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Logger: log.New(ioutil.Discard, uniqueID(), log.LstdFlags),
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OutputMaxSize: DefaultBufSize,
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}
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check.Start()
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defer check.Stop()
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time.Sleep(250 * time.Millisecond)
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// Should have at least 2 updates
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if notif.Updates("foo") < 2 {
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t.Fatalf("should have at least 2 updates %v", notif.UpdatesMap())
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}
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if notif.State("foo") != "critical" {
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t.Fatalf("should be critical %v", notif.StateMap())
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}
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}
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func TestCheckMonitor_RandomStagger(t *testing.T) {
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// t.Parallel() // timing test. no parallel
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notif := mock.NewNotify()
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check := &CheckMonitor{
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Notify: notif,
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CheckID: types.CheckID("foo"),
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ScriptArgs: []string{"sh", "-c", "exit 0"},
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Interval: 25 * time.Millisecond,
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Logger: log.New(ioutil.Discard, uniqueID(), log.LstdFlags),
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OutputMaxSize: DefaultBufSize,
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}
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check.Start()
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defer check.Stop()
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time.Sleep(500 * time.Millisecond)
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// Should have at least 1 update
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if notif.Updates("foo") < 1 {
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t.Fatalf("should have 1 or more updates %v", notif.UpdatesMap())
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}
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if notif.State("foo") != api.HealthPassing {
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t.Fatalf("should be %v %v", api.HealthPassing, notif.StateMap())
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}
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}
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func TestCheckMonitor_LimitOutput(t *testing.T) {
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t.Parallel()
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notif := mock.NewNotify()
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check := &CheckMonitor{
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Notify: notif,
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CheckID: types.CheckID("foo"),
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ScriptArgs: []string{"od", "-N", "81920", "/dev/urandom"},
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Interval: 25 * time.Millisecond,
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Logger: log.New(ioutil.Discard, uniqueID(), log.LstdFlags),
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OutputMaxSize: DefaultBufSize,
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}
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check.Start()
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defer check.Stop()
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time.Sleep(50 * time.Millisecond)
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// Allow for extra bytes for the truncation message
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if len(notif.Output("foo")) > DefaultBufSize+100 {
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t.Fatalf("output size is too long")
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}
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}
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func TestCheckTTL(t *testing.T) {
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// t.Parallel() // timing test. no parallel
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notif := mock.NewNotify()
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check := &CheckTTL{
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Notify: notif,
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CheckID: types.CheckID("foo"),
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TTL: 200 * time.Millisecond,
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Logger: log.New(ioutil.Discard, uniqueID(), log.LstdFlags),
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}
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check.Start()
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defer check.Stop()
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time.Sleep(100 * time.Millisecond)
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check.SetStatus(api.HealthPassing, "test-output")
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if notif.Updates("foo") != 1 {
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t.Fatalf("should have 1 updates %v", notif.UpdatesMap())
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}
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if notif.State("foo") != api.HealthPassing {
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t.Fatalf("should be passing %v", notif.StateMap())
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}
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// Ensure we don't fail early
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time.Sleep(150 * time.Millisecond)
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if notif.Updates("foo") != 1 {
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t.Fatalf("should have 1 updates %v", notif.UpdatesMap())
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}
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// Wait for the TTL to expire
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time.Sleep(150 * time.Millisecond)
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if notif.Updates("foo") != 2 {
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t.Fatalf("should have 2 updates %v", notif.UpdatesMap())
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}
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if notif.State("foo") != api.HealthCritical {
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t.Fatalf("should be critical %v", notif.StateMap())
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}
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if !strings.Contains(notif.Output("foo"), "test-output") {
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t.Fatalf("should have retained output %v", notif.OutputMap())
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}
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}
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func TestCheckHTTP(t *testing.T) {
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t.Parallel()
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tests := []struct {
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desc string
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code int
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method string
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header http.Header
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status string
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}{
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// passing
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{code: 200, status: api.HealthPassing},
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{code: 201, status: api.HealthPassing},
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{code: 250, status: api.HealthPassing},
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{code: 299, status: api.HealthPassing},
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// warning
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{code: 429, status: api.HealthWarning},
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// critical
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{code: 150, status: api.HealthCritical},
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{code: 199, status: api.HealthCritical},
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{code: 300, status: api.HealthCritical},
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{code: 400, status: api.HealthCritical},
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{code: 500, status: api.HealthCritical},
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// custom method
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{desc: "custom method GET", code: 200, method: "GET", status: api.HealthPassing},
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{desc: "custom method POST", code: 200, header: http.Header{"Content-Length": []string{"0"}}, method: "POST", status: api.HealthPassing},
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{desc: "custom method abc", code: 200, method: "abc", status: api.HealthPassing},
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// custom header
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{desc: "custom header", code: 200, header: http.Header{"A": []string{"b", "c"}}, status: api.HealthPassing},
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{desc: "host header", code: 200, header: http.Header{"Host": []string{"a"}}, status: api.HealthPassing},
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}
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for _, tt := range tests {
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desc := tt.desc
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if desc == "" {
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desc = fmt.Sprintf("code %d -> status %s", tt.code, tt.status)
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}
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t.Run(desc, func(t *testing.T) {
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server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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if tt.method != "" && tt.method != r.Method {
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w.WriteHeader(999)
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return
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}
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expectedHeader := http.Header{
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"Accept": []string{"text/plain, text/*, */*"},
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"Accept-Encoding": []string{"gzip"},
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"Connection": []string{"close"},
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"User-Agent": []string{"Consul Health Check"},
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}
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for k, v := range tt.header {
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expectedHeader[k] = v
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}
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// the Host header is in r.Host and not in the headers
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host := expectedHeader.Get("Host")
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if host != "" && host != r.Host {
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w.WriteHeader(999)
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return
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}
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expectedHeader.Del("Host")
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if !reflect.DeepEqual(expectedHeader, r.Header) {
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w.WriteHeader(999)
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return
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}
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// Body larger than 4k limit
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body := bytes.Repeat([]byte{'a'}, 2*DefaultBufSize)
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w.WriteHeader(tt.code)
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w.Write(body)
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}))
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defer server.Close()
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notif := mock.NewNotify()
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check := &CheckHTTP{
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Notify: notif,
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CheckID: types.CheckID("foo"),
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HTTP: server.URL,
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Method: tt.method,
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OutputMaxSize: DefaultBufSize,
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Header: tt.header,
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Interval: 10 * time.Millisecond,
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Logger: log.New(ioutil.Discard, uniqueID(), log.LstdFlags),
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}
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check.Start()
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defer check.Stop()
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retry.Run(t, func(r *retry.R) {
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if got, want := notif.Updates("foo"), 2; got < want {
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r.Fatalf("got %d updates want at least %d", got, want)
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}
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if got, want := notif.State("foo"), tt.status; got != want {
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r.Fatalf("got state %q want %q", got, want)
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}
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// Allow slightly more data than DefaultBufSize, for the header
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if n := len(notif.Output("foo")); n > (DefaultBufSize + 256) {
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r.Fatalf("output too long: %d (%d-byte limit)", n, DefaultBufSize)
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}
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})
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})
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}
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}
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func TestCheckHTTPTCP_BigTimeout(t *testing.T) {
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testCases := []struct {
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timeoutIn, intervalIn, timeoutWant time.Duration
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}{
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{
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timeoutIn: 31 * time.Second,
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intervalIn: 30 * time.Second,
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timeoutWant: 31 * time.Second,
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},
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{
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timeoutIn: 30 * time.Second,
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intervalIn: 30 * time.Second,
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timeoutWant: 30 * time.Second,
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},
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{
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timeoutIn: 29 * time.Second,
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intervalIn: 30 * time.Second,
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timeoutWant: 29 * time.Second,
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},
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{
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timeoutIn: 0 * time.Second,
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intervalIn: 10 * time.Second,
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timeoutWant: 10 * time.Second,
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},
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{
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timeoutIn: 0 * time.Second,
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intervalIn: 30 * time.Second,
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timeoutWant: 10 * time.Second,
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},
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{
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timeoutIn: 10 * time.Second,
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intervalIn: 30 * time.Second,
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timeoutWant: 10 * time.Second,
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},
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{
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timeoutIn: 9 * time.Second,
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intervalIn: 30 * time.Second,
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timeoutWant: 9 * time.Second,
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},
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{
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timeoutIn: -1 * time.Second,
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intervalIn: 10 * time.Second,
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timeoutWant: 10 * time.Second,
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},
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{
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timeoutIn: 0 * time.Second,
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intervalIn: 5 * time.Second,
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timeoutWant: 10 * time.Second,
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},
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}
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for _, tc := range testCases {
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desc := fmt.Sprintf("timeoutIn: %v, intervalIn: %v", tc.timeoutIn, tc.intervalIn)
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t.Run(desc, func(t *testing.T) {
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checkHTTP := &CheckHTTP{
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Timeout: tc.timeoutIn,
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Interval: tc.intervalIn,
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}
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checkHTTP.Start()
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defer checkHTTP.Stop()
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if checkHTTP.httpClient.Timeout != tc.timeoutWant {
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t.Fatalf("expected HTTP timeout to be %v, got %v", tc.timeoutWant, checkHTTP.httpClient.Timeout)
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}
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checkTCP := &CheckTCP{
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Timeout: tc.timeoutIn,
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Interval: tc.intervalIn,
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}
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checkTCP.Start()
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defer checkTCP.Stop()
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if checkTCP.dialer.Timeout != tc.timeoutWant {
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t.Fatalf("expected TCP timeout to be %v, got %v", tc.timeoutWant, checkTCP.dialer.Timeout)
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}
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})
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|
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}
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}
|
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|
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func TestCheckMaxOutputSize(t *testing.T) {
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t.Parallel()
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timeout := 5 * time.Millisecond
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server := httptest.NewServer(http.HandlerFunc(func(writer http.ResponseWriter, req *http.Request) {
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body := bytes.Repeat([]byte{'x'}, 2*DefaultBufSize)
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writer.WriteHeader(200)
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writer.Write(body)
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}))
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defer server.Close()
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|
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notif := mock.NewNotify()
|
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maxOutputSize := 32
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check := &CheckHTTP{
|
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Notify: notif,
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CheckID: types.CheckID("bar"),
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HTTP: server.URL + "/v1/agent/self",
|
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Timeout: timeout,
|
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Interval: 2 * time.Millisecond,
|
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Logger: log.New(ioutil.Discard, uniqueID(), log.LstdFlags),
|
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OutputMaxSize: maxOutputSize,
|
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}
|
|
|
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check.Start()
|
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defer check.Stop()
|
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retry.Run(t, func(r *retry.R) {
|
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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)
|
|
}
|
|
})
|
|
}
|
|
}
|