441 lines
11 KiB
Go
441 lines
11 KiB
Go
package consul
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import (
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"os"
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"testing"
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"time"
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"github.com/stretchr/testify/require"
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"github.com/hashicorp/consul/agent/structs"
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"github.com/hashicorp/consul/agent/token"
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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/testrpc"
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)
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func TestLeader_FederationStateAntiEntropy_FeatureIsStickyEvenIfSerfTagsRegress(t *testing.T) {
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if testing.Short() {
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t.Skip("too slow for testing.Short")
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}
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t.Parallel()
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// We test this by having two datacenters with one server each. They
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// initially come up and pass the serf barrier, then we power them both
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// off. We leave the primary off permanently, and then we stand up the
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// secondary. Hopefully it should transition to allow federation states.
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dir1, s1 := testServerWithConfig(t, func(c *Config) {
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c.PrimaryDatacenter = "dc1"
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})
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defer os.RemoveAll(dir1)
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defer s1.Shutdown()
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codec := rpcClient(t, s1)
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defer codec.Close()
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waitForLeaderEstablishment(t, s1)
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dir2, s2 := testServerWithConfig(t, func(c *Config) {
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c.Datacenter = "dc2"
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c.PrimaryDatacenter = "dc1"
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c.FederationStateReplicationRate = 100
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c.FederationStateReplicationBurst = 100
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c.FederationStateReplicationApplyLimit = 1000000
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})
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defer os.RemoveAll(dir2)
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defer s2.Shutdown()
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codec2 := rpcClient(t, s2)
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defer codec2.Close()
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waitForLeaderEstablishment(t, s2)
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// Create the WAN link
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joinWAN(t, s2, s1)
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waitForLeaderEstablishment(t, s1)
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waitForLeaderEstablishment(t, s2)
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waitForFederationStateFeature(t, s1)
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waitForFederationStateFeature(t, s2)
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// Wait for everybody's AE to complete.
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retry.Run(t, func(r *retry.R) {
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_, states, err := s1.fsm.State().FederationStateList(nil)
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require.NoError(r, err)
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require.Len(r, states, 2)
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})
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// Shutdown s1 and s2.
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s1.Shutdown()
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s2.Shutdown()
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// Restart just s2
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dir2new, s2new := testServerWithConfig(t, func(c *Config) {
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c.Datacenter = "dc2"
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c.PrimaryDatacenter = "dc1"
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c.FederationStateReplicationRate = 100
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c.FederationStateReplicationBurst = 100
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c.FederationStateReplicationApplyLimit = 1000000
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c.DataDir = s2.config.DataDir
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c.NodeName = s2.config.NodeName
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c.NodeID = s2.config.NodeID
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})
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defer os.RemoveAll(dir2new)
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defer s2new.Shutdown()
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waitForLeaderEstablishment(t, s2new)
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// It should be able to transition without connectivity to the primary.
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waitForFederationStateFeature(t, s2new)
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}
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func TestLeader_FederationStateAntiEntropy_BlockingQuery(t *testing.T) {
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if testing.Short() {
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t.Skip("too slow for testing.Short")
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}
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t.Parallel()
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dir1, s1 := testServerWithConfig(t, func(c *Config) {
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c.PrimaryDatacenter = "dc1"
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})
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defer os.RemoveAll(dir1)
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defer s1.Shutdown()
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testrpc.WaitForLeader(t, s1.RPC, "dc1")
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dir2, s2 := testServerWithConfig(t, func(c *Config) {
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c.Datacenter = "dc2"
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c.PrimaryDatacenter = "dc1"
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c.FederationStateReplicationRate = 100
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c.FederationStateReplicationBurst = 100
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c.FederationStateReplicationApplyLimit = 1000000
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c.DisableFederationStateAntiEntropy = true
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})
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testrpc.WaitForLeader(t, s2.RPC, "dc2")
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defer os.RemoveAll(dir2)
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defer s2.Shutdown()
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// Try to join.
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joinWAN(t, s2, s1)
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testrpc.WaitForLeader(t, s1.RPC, "dc1")
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testrpc.WaitForLeader(t, s1.RPC, "dc2")
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checkSame := func(t *testing.T, expectN, expectGatewaysInDC2 int) {
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t.Helper()
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retry.Run(t, func(r *retry.R) {
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_, remote, err := s1.fsm.State().FederationStateList(nil)
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require.NoError(r, err)
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require.Len(r, remote, expectN)
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_, local, err := s2.fsm.State().FederationStateList(nil)
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require.NoError(r, err)
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require.Len(r, local, expectN)
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var fs2 *structs.FederationState
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for _, fs := range local {
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if fs.Datacenter == "dc2" {
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fs2 = fs
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break
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}
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}
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if expectGatewaysInDC2 < 0 {
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require.Nil(r, fs2)
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} else {
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require.NotNil(r, fs2)
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require.Len(r, fs2.MeshGateways, expectGatewaysInDC2)
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}
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})
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}
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gatewayCSN1 := newTestMeshGatewayNode(
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"dc2", "gateway1", "1.2.3.4", 443, map[string]string{structs.MetaWANFederationKey: "1"}, api.HealthPassing,
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)
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gatewayCSN2 := newTestMeshGatewayNode(
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"dc2", "gateway2", "4.3.2.1", 443, map[string]string{structs.MetaWANFederationKey: "1"}, api.HealthPassing,
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)
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// populate with some stuff
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makeFedState := func(t *testing.T, dc string, csn ...structs.CheckServiceNode) {
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t.Helper()
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arg := structs.FederationStateRequest{
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Datacenter: "dc1",
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Op: structs.FederationStateUpsert,
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State: &structs.FederationState{
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Datacenter: dc,
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MeshGateways: csn,
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UpdatedAt: time.Now().UTC(),
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},
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}
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out := false
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require.NoError(t, s1.RPC("FederationState.Apply", &arg, &out))
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}
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makeGateways := func(t *testing.T, csn structs.CheckServiceNode) {
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t.Helper()
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const dc = "dc2"
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arg := structs.RegisterRequest{
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Datacenter: csn.Node.Datacenter,
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Node: csn.Node.Node,
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Address: csn.Node.Address,
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Service: csn.Service,
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Checks: csn.Checks,
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}
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var out struct{}
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require.NoError(t, s2.RPC("Catalog.Register", &arg, &out))
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}
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type result struct {
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idx uint64
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prev, curr *structs.FederationState
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err error
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}
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blockAgain := func(last uint64) <-chan result {
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ch := make(chan result, 1)
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go func() {
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var res result
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res.idx, res.prev, res.curr, res.err = s2.fetchFederationStateAntiEntropyDetails(&structs.QueryOptions{
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MinQueryIndex: last,
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RequireConsistent: true,
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})
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ch <- res
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}()
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return ch
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}
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// wait for the primary to do one round of AE and replicate it
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checkSame(t, 1, -1)
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// // wait for change to be reflected as well
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// makeFedState(t, "dc2")
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// checkSame(t, 1)
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// Do the initial fetch (len0 local gateways, upstream has nil fedstate)
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res0 := <-blockAgain(0)
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require.NoError(t, res0.err)
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ch := blockAgain(res0.idx)
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// bump the local mesh gateways; should unblock query
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makeGateways(t, gatewayCSN1)
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res1 := <-ch
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require.NoError(t, res1.err)
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require.NotEqual(t, res1.idx, res0.idx)
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require.Nil(t, res1.prev)
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require.Len(t, res1.curr.MeshGateways, 1)
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checkSame(t, 1, -1) // no fed state update yet
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ch = blockAgain(res1.idx)
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// do manual AE
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makeFedState(t, "dc2", gatewayCSN1)
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res2 := <-ch
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require.NoError(t, res2.err)
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require.NotEqual(t, res2.idx, res1.idx)
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require.Len(t, res2.prev.MeshGateways, 1)
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require.Len(t, res2.curr.MeshGateways, 1)
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checkSame(t, 2, 1)
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ch = blockAgain(res2.idx)
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// add another local mesh gateway
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makeGateways(t, gatewayCSN2)
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res3 := <-ch
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require.NoError(t, res3.err)
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require.NotEqual(t, res3.idx, res2.idx)
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require.Len(t, res3.prev.MeshGateways, 1)
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require.Len(t, res3.curr.MeshGateways, 2)
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checkSame(t, 2, 1)
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ch = blockAgain(res3.idx)
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// do manual AE
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makeFedState(t, "dc2", gatewayCSN1, gatewayCSN2)
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res4 := <-ch
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require.NoError(t, res4.err)
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require.NotEqual(t, res4.idx, res3.idx)
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require.Len(t, res4.prev.MeshGateways, 2)
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require.Len(t, res4.curr.MeshGateways, 2)
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checkSame(t, 2, 2)
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}
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func TestLeader_FederationStateAntiEntropyPruning(t *testing.T) {
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if testing.Short() {
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t.Skip("too slow for testing.Short")
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}
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t.Parallel()
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dir1, s1 := testServerWithConfig(t, func(c *Config) {
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c.PrimaryDatacenter = "dc1"
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})
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defer os.RemoveAll(dir1)
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defer s1.Shutdown()
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testrpc.WaitForLeader(t, s1.RPC, "dc1")
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client := rpcClient(t, s1)
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defer client.Close()
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dir2, s2 := testServerWithConfig(t, func(c *Config) {
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c.Datacenter = "dc2"
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c.PrimaryDatacenter = "dc1"
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})
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testrpc.WaitForLeader(t, s2.RPC, "dc2")
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defer os.RemoveAll(dir2)
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defer s2.Shutdown()
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// Try to join.
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joinWAN(t, s2, s1)
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testrpc.WaitForLeader(t, s1.RPC, "dc1")
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testrpc.WaitForLeader(t, s1.RPC, "dc2")
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checkSame := func(r *retry.R) error {
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_, remote, err := s1.fsm.State().FederationStateList(nil)
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require.NoError(r, err)
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_, local, err := s2.fsm.State().FederationStateList(nil)
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require.NoError(r, err)
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require.Len(r, remote, 2)
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require.Len(r, local, 2)
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for i := range remote {
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// zero out the raft data for future comparisons
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remote[i].RaftIndex = structs.RaftIndex{}
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local[i].RaftIndex = structs.RaftIndex{}
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require.Equal(r, remote[i], local[i])
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}
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return nil
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}
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// Wait for the replica to converge.
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retry.Run(t, func(r *retry.R) {
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checkSame(r)
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})
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// Now leave and shutdown dc2.
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require.NoError(t, s2.Leave())
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require.NoError(t, s2.Shutdown())
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// Wait until we know the router is updated.
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retry.Run(t, func(r *retry.R) {
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dcs := s1.router.GetDatacenters()
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require.Len(r, dcs, 1)
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require.Equal(r, "dc1", dcs[0])
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})
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// Since the background routine is going to run every hour, it likely is
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// not going to run during this test, so it's safe to directly invoke the
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// core method.
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require.NoError(t, s1.pruneStaleFederationStates())
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// Wait for dc2 to drop out.
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retry.Run(t, func(r *retry.R) {
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_, mine, err := s1.fsm.State().FederationStateList(nil)
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require.NoError(r, err)
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require.Len(r, mine, 1)
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require.Equal(r, "dc1", mine[0].Datacenter)
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})
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}
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func TestLeader_FederationStateAntiEntropyPruning_ACLDeny(t *testing.T) {
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if testing.Short() {
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t.Skip("too slow for testing.Short")
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}
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t.Parallel()
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dir1, s1 := testServerWithConfig(t, func(c *Config) {
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c.PrimaryDatacenter = "dc1"
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c.PrimaryDatacenter = "dc1"
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c.ACLsEnabled = true
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c.ACLMasterToken = "root"
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c.ACLResolverSettings.ACLDefaultPolicy = "deny"
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})
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defer os.RemoveAll(dir1)
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defer s1.Shutdown()
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testrpc.WaitForLeader(t, s1.RPC, "dc1")
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client := rpcClient(t, s1)
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defer client.Close()
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dir2, s2 := testServerWithConfig(t, func(c *Config) {
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c.Datacenter = "dc2"
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c.PrimaryDatacenter = "dc1"
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c.PrimaryDatacenter = "dc1"
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c.ACLsEnabled = true
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c.ACLMasterToken = "root"
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c.ACLResolverSettings.ACLDefaultPolicy = "deny"
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})
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defer os.RemoveAll(dir2)
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defer s2.Shutdown()
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// Try to join.
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joinWAN(t, s2, s1)
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testrpc.WaitForLeader(t, s1.RPC, "dc1")
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testrpc.WaitForLeader(t, s1.RPC, "dc2", testrpc.WithToken("root"))
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// Create the ACL token.
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opWriteToken, err := upsertTestTokenWithPolicyRules(client, "root", "dc1", `operator = "write"`)
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require.NoError(t, err)
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require.True(t, s1.tokens.UpdateReplicationToken(opWriteToken.SecretID, token.TokenSourceAPI))
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require.True(t, s2.tokens.UpdateReplicationToken(opWriteToken.SecretID, token.TokenSourceAPI))
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checkSame := func(r *retry.R) error {
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_, remote, err := s1.fsm.State().FederationStateList(nil)
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require.NoError(r, err)
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_, local, err := s2.fsm.State().FederationStateList(nil)
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require.NoError(r, err)
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require.Len(r, remote, 2)
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require.Len(r, local, 2)
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for i := range remote {
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// zero out the raft data for future comparisons
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remote[i].RaftIndex = structs.RaftIndex{}
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local[i].RaftIndex = structs.RaftIndex{}
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require.Equal(r, remote[i], local[i])
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}
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return nil
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}
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// Wait for the replica to converge.
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retry.Run(t, func(r *retry.R) {
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checkSame(r)
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})
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// Now leave and shutdown dc2.
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require.NoError(t, s2.Leave())
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require.NoError(t, s2.Shutdown())
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// Wait until we know the router is updated.
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retry.Run(t, func(r *retry.R) {
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dcs := s1.router.GetDatacenters()
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require.Len(r, dcs, 1)
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require.Equal(r, "dc1", dcs[0])
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})
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// Since the background routine is going to run every hour, it likely is
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// not going to run during this test, so it's safe to directly invoke the
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// core method.
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require.NoError(t, s1.pruneStaleFederationStates())
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// Wait for dc2 to drop out.
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retry.Run(t, func(r *retry.R) {
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_, mine, err := s1.fsm.State().FederationStateList(nil)
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require.NoError(r, err)
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require.Len(r, mine, 1)
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require.Equal(r, "dc1", mine[0].Datacenter)
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})
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}
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