2023-08-11 13:12:13 +00:00
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// Copyright (c) HashiCorp, Inc.
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// SPDX-License-Identifier: BUSL-1.1
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2023-07-18 23:41:30 +00:00
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package peering
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import (
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"fmt"
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"testing"
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"github.com/hashicorp/consul/api"
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"github.com/hashicorp/consul/test/integration/consul-container/libs/utils"
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"github.com/hashicorp/consul/testing/deployer/topology"
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"github.com/stretchr/testify/require"
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)
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type ac6FailoversSuite struct {
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// inputs
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// with all false, this gives us a scenario with:
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// - a "near" server in the accepter cluster (DC1), partitition default, namespace default
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// - a "far" server in the dialer cluster (DC2), partition default, namespace default
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// - a client in the accepter cluster (DC1), partition default, namespace default, with:
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// - upstream near server (DC1)
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// - failover to far server (DC2)
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//
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// TODO: technically if NearInDial && !FarInAcc (i.e., near == far), then we're not doing peering at all,
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// and could do this test in a single DC
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// when true, put the client (and its default upstream server) in the dialer peer; otherwise, put client in accepter
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NearInDial bool
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// when true, put the client (and its default upstream server) in the nondefault partition/namespace; otherwise in the default
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NearInPartAlt bool
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NearInNSAlt bool
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// when true, put far server to the accepter peer; otherwise the dialer
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FarInAcc bool
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// when true, put far server to nondefault partition/namespace (ENT-only); otherwise, failover to default
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FarInPartAlt bool
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FarInNSAlt bool
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// launch outputs, for querying during test
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clientSID topology.ID
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// near = same DC as client; far = other DC
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nearServerSID topology.ID
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// used to remove the node and trigger failover
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nearServerNode topology.NodeID
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farServerSID topology.ID
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farServerNode topology.NodeID
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}
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// Note: this test cannot share topo
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func TestAC6Failovers(t *testing.T) {
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// bit banging to get all permutations of all params
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const nParams = 3
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// i.e 2**nParams
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const n = int(1) << nParams
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for i := 0; i < n; i++ {
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s := ac6FailoversSuite{
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// xth bit == 1
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NearInDial: (i>>0)&1 == 1,
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NearInPartAlt: (i>>1)&1 == 1,
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FarInPartAlt: (i>>2)&1 == 1,
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}
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// ensure the servers are always in separate DCs
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s.FarInAcc = s.NearInDial
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t.Run(fmt.Sprintf("%02d_%s", i, s.testName()), func(t *testing.T) {
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t.Parallel()
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ct := NewCommonTopo(t)
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s.setup(t, ct)
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ct.Launch(t)
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s.test(t, ct)
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})
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}
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}
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func TestNET5029Failovers(t *testing.T) {
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// TODO: *.{a,b} are not actually peering tests, and should technically be moved elsewhere
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suites := map[string]ac6FailoversSuite{
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"1.a": {
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FarInAcc: true,
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FarInPartAlt: true,
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},
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"1.b": {
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FarInAcc: true,
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FarInNSAlt: true,
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},
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"1.c": {
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FarInNSAlt: true,
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},
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"1.d": {
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FarInPartAlt: true,
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},
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"2.a": {
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FarInAcc: true,
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NearInPartAlt: true,
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},
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"2.b": {
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FarInAcc: true,
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NearInNSAlt: true,
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},
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"2.c": {
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NearInDial: true,
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NearInNSAlt: true,
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FarInAcc: true,
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},
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"2.d": {
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NearInDial: true,
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NearInPartAlt: true,
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FarInAcc: true,
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},
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}
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for name, s := range suites {
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s := s
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t.Run(fmt.Sprintf("%s_%s", name, s.testName()), func(t *testing.T) {
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if name == "1.b" {
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t.Skip("TODO: fails with 503/504")
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}
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t.Parallel()
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ct := NewCommonTopo(t)
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s.setup(t, ct)
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ct.Launch(t)
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s.test(t, ct)
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})
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}
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}
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func TestAC6Failovers_AllPermutations(t *testing.T) {
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//
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t.Skip("Too many permutations")
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// bit banging to get all permutations of all params
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const nParams = 6
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// i.e 2**nParams
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const n = int(1) << nParams
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for i := 0; i < n; i++ {
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s := ac6FailoversSuite{
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// xth bit == 1
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NearInDial: (i>>0)&1 == 1,
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FarInAcc: (i>>1)&1 == 1,
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NearInPartAlt: (i>>2)&1 == 1,
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FarInPartAlt: (i>>3)&1 == 1,
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NearInNSAlt: (i>>4)&1 == 1,
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FarInNSAlt: (i>>5)&1 == 1,
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}
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t.Run(fmt.Sprintf("%02d_%s", i, s.testName()), func(t *testing.T) {
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t.Parallel()
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ct := NewCommonTopo(t)
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s.setup(t, ct)
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ct.Launch(t)
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s.test(t, ct)
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})
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}
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}
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func (s *ac6FailoversSuite) testName() (ret string) {
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switch s.NearInDial {
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case true:
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ret += "dial"
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default:
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ret += "acc"
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}
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ret += "."
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switch s.NearInPartAlt {
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case true:
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ret += "alt"
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default:
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ret += "default"
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}
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ret += "."
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switch s.NearInNSAlt {
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case true:
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ret += "alt"
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default:
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ret += "default"
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}
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ret += "->"
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switch s.FarInAcc {
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case true:
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ret += "acc"
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default:
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ret += "dial"
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}
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ret += "."
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switch s.FarInPartAlt {
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case true:
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ret += "alt"
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default:
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ret += "default"
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}
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ret += "."
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switch s.FarInNSAlt {
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case true:
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ret += "alt"
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default:
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ret += "default"
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}
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return
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}
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func (s *ac6FailoversSuite) setup(t *testing.T, ct *commonTopo) {
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if !utils.IsEnterprise() {
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if s.NearInPartAlt || s.FarInPartAlt {
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t.Skip("ENT required for nondefault partitions")
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}
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if s.NearInNSAlt || s.FarInNSAlt {
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t.Skip("ENT required for nondefault namespaces")
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}
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}
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nearClu := ct.DC1
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farClu := ct.DC2
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if s.NearInDial {
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nearClu = ct.DC2
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}
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if s.FarInAcc {
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farClu = ct.DC1
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}
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// - server in clientPartition/DC (main target)
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nearServerSID := topology.ID{
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Name: "ac6-server",
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Partition: defaultToEmptyForCE("default"),
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Namespace: defaultToEmptyForCE("default"),
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}
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if s.NearInPartAlt {
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nearServerSID.Partition = "part1"
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}
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if s.NearInNSAlt {
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nearServerSID.Namespace = "ns1"
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}
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nearServer := NewFortioServiceWithDefaults(
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nearClu.Datacenter,
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nearServerSID,
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nil,
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)
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nearServerNode := ct.AddServiceNode(nearClu, serviceExt{Workload: nearServer})
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nearClu.InitialConfigEntries = append(nearClu.InitialConfigEntries,
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&api.ServiceConfigEntry{
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Kind: api.ServiceDefaults,
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Name: nearServerSID.Name,
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Partition: defaultToEmptyForCE(nearServerSID.Partition),
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Namespace: defaultToEmptyForCE(nearServerSID.Namespace),
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Protocol: "http",
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},
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)
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// - server in otherPartition/otherDC
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farServerSID := topology.ID{
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Name: nearServerSID.Name,
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Partition: defaultToEmptyForCE("default"),
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Namespace: defaultToEmptyForCE("default"),
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}
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if s.FarInPartAlt {
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farServerSID.Partition = "part1"
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}
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if s.FarInNSAlt {
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farServerSID.Namespace = "ns1"
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}
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farServer := NewFortioServiceWithDefaults(
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farClu.Datacenter,
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farServerSID,
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nil,
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)
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farServerNode := ct.AddServiceNode(farClu, serviceExt{Workload: farServer})
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if nearClu != farClu {
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ct.ExportService(farClu, farServerSID.Partition,
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api.ExportedService{
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Name: farServerSID.Name,
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Namespace: defaultToEmptyForCE(farServerSID.Namespace),
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Consumers: []api.ServiceConsumer{
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{
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Peer: LocalPeerName(nearClu, nearServerSID.Partition),
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},
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},
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},
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)
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} else if nearClu == farClu && farServerSID.Partition != nearServerSID.Partition {
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ct.ExportService(farClu, farServerSID.Partition,
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api.ExportedService{
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Name: farServerSID.Name,
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Namespace: defaultToEmptyForCE(farServerSID.Namespace),
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Consumers: []api.ServiceConsumer{
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{
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// this must not be "", or else it is basically ignored altogether
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// TODO: bug? if this whole struct is empty, that should be an error
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Partition: topology.PartitionOrDefault(nearServerSID.Partition),
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},
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},
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},
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)
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}
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var targets []api.ServiceResolverFailoverTarget
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if nearClu != farClu {
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targets = []api.ServiceResolverFailoverTarget{
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{
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Service: farServerSID.Name,
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Peer: LocalPeerName(farClu, farServerSID.Partition),
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Namespace: defaultToEmptyForCE(farServerSID.Namespace),
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},
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}
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} else {
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part := ConfigEntryPartition(farServerSID.Partition)
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// weird exception here where target partition set to "" means "inherit from parent"
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// TODO: bug? docs say "" -> default:
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// https://developer.hashicorp.com/consul/docs/connect/config-entries/service-resolver#failover-targets-partition
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if farServerSID.Partition == "default" && nearServerSID.Partition != "default" {
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part = "default"
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}
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targets = []api.ServiceResolverFailoverTarget{
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{
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Service: farServerSID.Name,
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Partition: defaultToEmptyForCE(part),
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Namespace: defaultToEmptyForCE(farServerSID.Namespace),
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},
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}
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}
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nearClu.InitialConfigEntries = append(nearClu.InitialConfigEntries,
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&api.ServiceConfigEntry{
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Kind: api.ServiceDefaults,
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Name: farServerSID.Name,
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Partition: defaultToEmptyForCE(farServerSID.Partition),
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Namespace: defaultToEmptyForCE(farServerSID.Namespace),
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Protocol: "http",
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},
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&api.ServiceResolverConfigEntry{
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Kind: api.ServiceResolver,
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Name: nearServerSID.Name,
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Partition: defaultToEmptyForCE(nearServerSID.Partition),
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Namespace: defaultToEmptyForCE(nearServerSID.Namespace),
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Failover: map[string]api.ServiceResolverFailover{
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"*": {
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|
Targets: targets,
|
|
|
|
},
|
|
|
|
},
|
2023-07-18 23:41:30 +00:00
|
|
|
},
|
|
|
|
)
|
|
|
|
|
2023-11-10 19:22:06 +00:00
|
|
|
clientSID := topology.ID{
|
2023-11-03 16:43:43 +00:00
|
|
|
Name: "ac6-client",
|
2023-11-07 16:11:42 +00:00
|
|
|
Partition: defaultToEmptyForCE(nearServerSID.Partition),
|
|
|
|
Namespace: defaultToEmptyForCE(nearServerSID.Namespace),
|
2023-11-03 16:43:43 +00:00
|
|
|
}
|
|
|
|
client := NewFortioServiceWithDefaults(
|
|
|
|
nearClu.Datacenter,
|
|
|
|
clientSID,
|
2023-11-10 19:22:06 +00:00
|
|
|
func(s *topology.Workload) {
|
|
|
|
// Destination per partition
|
|
|
|
s.Destinations = []*topology.Destination{
|
2023-11-03 16:43:43 +00:00
|
|
|
{
|
2023-11-10 19:22:06 +00:00
|
|
|
ID: topology.ID{
|
2023-11-03 16:43:43 +00:00
|
|
|
Name: nearServerSID.Name,
|
2023-11-07 16:11:42 +00:00
|
|
|
Partition: defaultToEmptyForCE(nearServerSID.Partition),
|
|
|
|
Namespace: defaultToEmptyForCE(nearServerSID.Namespace),
|
2023-11-03 16:43:43 +00:00
|
|
|
},
|
|
|
|
LocalPort: 5000,
|
|
|
|
// exposed so we can hit it directly
|
|
|
|
// TODO: we shouldn't do this; it's not realistic
|
|
|
|
LocalAddress: "0.0.0.0",
|
|
|
|
},
|
|
|
|
}
|
|
|
|
},
|
|
|
|
)
|
2023-11-10 19:22:06 +00:00
|
|
|
ct.AddServiceNode(nearClu, serviceExt{Workload: client})
|
2023-11-03 16:43:43 +00:00
|
|
|
nearClu.InitialConfigEntries = append(nearClu.InitialConfigEntries,
|
|
|
|
&api.ServiceConfigEntry{
|
2023-07-18 23:41:30 +00:00
|
|
|
Kind: api.ServiceDefaults,
|
2023-11-03 16:43:43 +00:00
|
|
|
Name: clientSID.Name,
|
2023-11-07 16:11:42 +00:00
|
|
|
Partition: defaultToEmptyForCE(clientSID.Partition),
|
|
|
|
Namespace: defaultToEmptyForCE(clientSID.Namespace),
|
2023-07-18 23:41:30 +00:00
|
|
|
Protocol: "http",
|
|
|
|
},
|
2023-11-03 16:43:43 +00:00
|
|
|
)
|
|
|
|
|
|
|
|
// intentions
|
|
|
|
nearClu.InitialConfigEntries = append(nearClu.InitialConfigEntries,
|
|
|
|
&api.ServiceIntentionsConfigEntry{
|
2023-07-18 23:41:30 +00:00
|
|
|
Kind: api.ServiceIntentions,
|
2023-11-03 16:43:43 +00:00
|
|
|
Name: nearServerSID.Name,
|
2023-11-07 16:11:42 +00:00
|
|
|
Partition: defaultToEmptyForCE(nearServerSID.Partition),
|
|
|
|
Namespace: defaultToEmptyForCE(nearServerSID.Namespace),
|
2023-11-03 16:43:43 +00:00
|
|
|
Sources: []*api.SourceIntention{{
|
|
|
|
Name: clientSID.Name,
|
2023-11-07 16:11:42 +00:00
|
|
|
Namespace: defaultToEmptyForCE(clientSID.Namespace),
|
2023-11-03 16:43:43 +00:00
|
|
|
// in this field, "" -> destination partition, so no ConfigEntryPartition :eyeroll:
|
|
|
|
// https://developer.hashicorp.com/consul/docs/connect/config-entries/service-intentions#sources-partition
|
2023-11-07 16:11:42 +00:00
|
|
|
Partition: defaultToEmptyForCE(clientSID.Partition),
|
2023-11-03 16:43:43 +00:00
|
|
|
Action: api.IntentionActionAllow,
|
|
|
|
}},
|
2023-07-18 23:41:30 +00:00
|
|
|
},
|
2023-11-03 16:43:43 +00:00
|
|
|
)
|
|
|
|
farSource := api.SourceIntention{
|
|
|
|
Name: clientSID.Name,
|
2023-11-07 16:11:42 +00:00
|
|
|
Namespace: defaultToEmptyForCE(clientSID.Namespace),
|
2023-11-03 16:43:43 +00:00
|
|
|
Peer: LocalPeerName(nearClu, clientSID.Partition),
|
|
|
|
Action: api.IntentionActionAllow,
|
|
|
|
}
|
|
|
|
if nearClu == farClu {
|
|
|
|
farSource.Peer = ""
|
|
|
|
// in this field, "" -> destination partition, so no ConfigEntryPartition :eyeroll:
|
|
|
|
// https://developer.hashicorp.com/consul/docs/connect/config-entries/service-intentions#sources-partition
|
|
|
|
farSource.Partition = topology.PartitionOrDefault(clientSID.Partition)
|
|
|
|
}
|
|
|
|
farClu.InitialConfigEntries = append(farClu.InitialConfigEntries,
|
|
|
|
&api.ServiceIntentionsConfigEntry{
|
|
|
|
Kind: api.ServiceIntentions,
|
|
|
|
Name: farServerSID.Name,
|
2023-11-07 16:11:42 +00:00
|
|
|
Partition: defaultToEmptyForCE(farServerSID.Partition),
|
|
|
|
Namespace: defaultToEmptyForCE(farServerSID.Namespace),
|
2023-11-03 16:43:43 +00:00
|
|
|
Sources: []*api.SourceIntention{&farSource},
|
|
|
|
},
|
|
|
|
)
|
|
|
|
|
|
|
|
s.clientSID = clientSID
|
|
|
|
s.nearServerSID = nearServerSID
|
|
|
|
s.farServerSID = farServerSID
|
|
|
|
s.nearServerNode = nearServerNode.ID()
|
|
|
|
s.farServerNode = farServerNode.ID()
|
2023-07-18 23:41:30 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
func (s *ac6FailoversSuite) test(t *testing.T, ct *commonTopo) {
|
2023-11-03 16:43:43 +00:00
|
|
|
// NOTE: *not parallel* because we mutate resources that are shared
|
|
|
|
// between test cases (disable/enable nodes)
|
|
|
|
|
|
|
|
nearClu := ct.Sprawl.Topology().Clusters["dc1"]
|
|
|
|
farClu := ct.Sprawl.Topology().Clusters["dc2"]
|
|
|
|
if s.NearInDial {
|
|
|
|
nearClu = ct.Sprawl.Topology().Clusters["dc2"]
|
2023-07-18 23:41:30 +00:00
|
|
|
}
|
2023-11-03 16:43:43 +00:00
|
|
|
if s.FarInAcc {
|
|
|
|
farClu = ct.Sprawl.Topology().Clusters["dc1"]
|
2023-07-18 23:41:30 +00:00
|
|
|
}
|
|
|
|
|
2023-11-10 19:22:06 +00:00
|
|
|
svcs := nearClu.WorkloadsByID(s.clientSID)
|
2023-11-03 16:43:43 +00:00
|
|
|
require.Len(t, svcs, 1, "expected exactly one client in datacenter")
|
2023-07-18 23:41:30 +00:00
|
|
|
|
2023-11-03 16:43:43 +00:00
|
|
|
client := svcs[0]
|
2023-11-10 19:22:06 +00:00
|
|
|
require.Len(t, client.Destinations, 1, "expected one upstream for client")
|
|
|
|
upstream := client.Destinations[0]
|
2023-07-18 23:41:30 +00:00
|
|
|
|
2023-11-03 16:43:43 +00:00
|
|
|
fmt.Println("### preconditions")
|
2023-07-18 23:41:30 +00:00
|
|
|
|
2023-11-03 16:43:43 +00:00
|
|
|
// this is the server in the same DC and partitions as client
|
|
|
|
serverSID := s.nearServerSID
|
|
|
|
serverSID.Normalize()
|
|
|
|
ct.Assert.FortioFetch2FortioName(t, client, upstream, nearClu.Name, serverSID)
|
2023-07-18 23:41:30 +00:00
|
|
|
|
2023-11-03 16:43:43 +00:00
|
|
|
ct.Assert.CatalogServiceExists(t, nearClu.Name, upstream.ID.Name, utils.CompatQueryOpts(&api.QueryOptions{
|
|
|
|
Partition: upstream.ID.Partition,
|
|
|
|
Namespace: upstream.ID.Namespace,
|
|
|
|
}))
|
|
|
|
|
|
|
|
if t.Failed() {
|
|
|
|
t.Fatal("failed preconditions")
|
2023-07-18 23:41:30 +00:00
|
|
|
}
|
2023-11-03 16:43:43 +00:00
|
|
|
|
|
|
|
fmt.Println("### failover")
|
|
|
|
|
|
|
|
cfg := ct.Sprawl.Config()
|
|
|
|
DisableNode(t, cfg, nearClu.Name, s.nearServerNode)
|
|
|
|
require.NoError(t, ct.Sprawl.RelaunchWithPhase(cfg, "failover"))
|
|
|
|
// Clusters for imported services rely on outlier detection for
|
|
|
|
// failovers, NOT eds_health_status. This means that killing the
|
|
|
|
// node above does not actually make the envoy cluster UNHEALTHY
|
|
|
|
// so we do not assert for it.
|
|
|
|
expectSID := s.farServerSID
|
|
|
|
expectSID.Normalize()
|
|
|
|
ct.Assert.FortioFetch2FortioName(t, client, upstream, farClu.Name, expectSID)
|
2023-07-18 23:41:30 +00:00
|
|
|
}
|
2023-11-07 16:11:42 +00:00
|
|
|
|
|
|
|
func defaultToEmptyForCE(tenancy string) string {
|
|
|
|
if utils.IsEnterprise() {
|
|
|
|
return tenancy
|
|
|
|
}
|
|
|
|
return topology.DefaultToEmpty(tenancy)
|
|
|
|
}
|