480 lines
12 KiB
Go
480 lines
12 KiB
Go
package consul
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import (
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"bytes"
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"context"
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"fmt"
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"os"
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"reflect"
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"sort"
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"strconv"
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"strings"
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"testing"
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"time"
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"github.com/hashicorp/consul/agent/structs"
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tokenStore "github.com/hashicorp/consul/agent/token"
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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 TestACLReplication_Sorter(t *testing.T) {
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t.Parallel()
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acls := structs.ACLs{
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&structs.ACL{ID: "a"},
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&structs.ACL{ID: "b"},
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&structs.ACL{ID: "c"},
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}
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sorter := &aclIterator{acls, 0}
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if len := sorter.Len(); len != 3 {
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t.Fatalf("bad: %d", len)
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}
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if !sorter.Less(0, 1) {
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t.Fatalf("should be less")
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}
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if sorter.Less(1, 0) {
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t.Fatalf("should not be less")
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}
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if !sort.IsSorted(sorter) {
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t.Fatalf("should be sorted")
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}
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expected := structs.ACLs{
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&structs.ACL{ID: "b"},
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&structs.ACL{ID: "a"},
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&structs.ACL{ID: "c"},
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}
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sorter.Swap(0, 1)
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if !reflect.DeepEqual(acls, expected) {
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t.Fatalf("bad: %v", acls)
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}
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if sort.IsSorted(sorter) {
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t.Fatalf("should not be sorted")
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}
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sort.Sort(sorter)
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if !sort.IsSorted(sorter) {
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t.Fatalf("should be sorted")
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}
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}
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func TestACLReplication_Iterator(t *testing.T) {
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t.Parallel()
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acls := structs.ACLs{}
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iter := newACLIterator(acls)
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if front := iter.Front(); front != nil {
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t.Fatalf("bad: %v", front)
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}
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iter.Next()
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if front := iter.Front(); front != nil {
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t.Fatalf("bad: %v", front)
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}
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acls = structs.ACLs{
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&structs.ACL{ID: "a"},
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&structs.ACL{ID: "b"},
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&structs.ACL{ID: "c"},
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}
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iter = newACLIterator(acls)
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if front := iter.Front(); front != acls[0] {
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t.Fatalf("bad: %v", front)
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}
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iter.Next()
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if front := iter.Front(); front != acls[1] {
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t.Fatalf("bad: %v", front)
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}
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iter.Next()
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if front := iter.Front(); front != acls[2] {
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t.Fatalf("bad: %v", front)
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}
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iter.Next()
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if front := iter.Front(); front != nil {
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t.Fatalf("bad: %v", front)
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}
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}
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func TestACLReplication_reconcileACLs(t *testing.T) {
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t.Parallel()
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parseACLs := func(raw string) structs.ACLs {
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var acls structs.ACLs
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for _, key := range strings.Split(raw, "|") {
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if len(key) == 0 {
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continue
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}
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tuple := strings.Split(key, ":")
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index, err := strconv.Atoi(tuple[1])
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if err != nil {
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t.Fatalf("err: %v", err)
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}
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acl := &structs.ACL{
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ID: tuple[0],
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Rules: tuple[2],
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RaftIndex: structs.RaftIndex{
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ModifyIndex: uint64(index),
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},
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}
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acls = append(acls, acl)
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}
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return acls
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}
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parseChanges := func(changes structs.ACLRequests) string {
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var ret string
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for i, change := range changes {
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if i > 0 {
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ret += "|"
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}
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ret += fmt.Sprintf("%s:%s:%s", change.Op, change.ACL.ID, change.ACL.Rules)
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}
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return ret
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}
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tests := []struct {
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local string
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remote string
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lastRemoteIndex uint64
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expected string
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}{
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// Everything empty.
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{
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local: "",
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remote: "",
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lastRemoteIndex: 0,
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expected: "",
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},
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// First time with empty local.
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{
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local: "",
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remote: "bbb:3:X|ccc:9:X|ddd:2:X|eee:11:X",
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lastRemoteIndex: 0,
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expected: "set:bbb:X|set:ccc:X|set:ddd:X|set:eee:X",
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},
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// Remote not sorted.
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{
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local: "",
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remote: "ddd:2:X|bbb:3:X|ccc:9:X|eee:11:X",
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lastRemoteIndex: 0,
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expected: "set:bbb:X|set:ccc:X|set:ddd:X|set:eee:X",
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},
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// Neither side sorted.
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{
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local: "ddd:2:X|bbb:3:X|ccc:9:X|eee:11:X",
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remote: "ccc:9:X|bbb:3:X|ddd:2:X|eee:11:X",
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lastRemoteIndex: 0,
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expected: "",
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},
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// Fully replicated, nothing to do.
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{
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local: "bbb:3:X|ccc:9:X|ddd:2:X|eee:11:X",
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remote: "bbb:3:X|ccc:9:X|ddd:2:X|eee:11:X",
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lastRemoteIndex: 0,
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expected: "",
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},
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// Change an ACL.
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{
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local: "bbb:3:X|ccc:9:X|ddd:2:X|eee:11:X",
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remote: "bbb:3:X|ccc:33:Y|ddd:2:X|eee:11:X",
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lastRemoteIndex: 0,
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expected: "set:ccc:Y",
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},
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// Change an ACL, but mask the change by the last replicated
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// index. This isn't how things work normally, but it proves
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// we are skipping the full compare based on the index.
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{
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local: "bbb:3:X|ccc:9:X|ddd:2:X|eee:11:X",
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remote: "bbb:3:X|ccc:33:Y|ddd:2:X|eee:11:X",
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lastRemoteIndex: 33,
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expected: "",
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},
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// Empty everything out.
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{
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local: "bbb:3:X|ccc:9:X|ddd:2:X|eee:11:X",
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remote: "",
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lastRemoteIndex: 0,
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expected: "delete:bbb:X|delete:ccc:X|delete:ddd:X|delete:eee:X",
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},
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// Adds on the ends and in the middle.
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{
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local: "bbb:3:X|ccc:9:X|ddd:2:X|eee:11:X",
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remote: "aaa:99:X|bbb:3:X|ccc:9:X|ccx:101:X|ddd:2:X|eee:11:X|fff:102:X",
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lastRemoteIndex: 0,
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expected: "set:aaa:X|set:ccx:X|set:fff:X",
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},
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// Deletes on the ends and in the middle.
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{
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local: "bbb:3:X|ccc:9:X|ddd:2:X|eee:11:X",
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remote: "ccc:9:X",
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lastRemoteIndex: 0,
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expected: "delete:bbb:X|delete:ddd:X|delete:eee:X",
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},
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// Everything.
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{
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local: "bbb:3:X|ccc:9:X|ddd:2:X|eee:11:X",
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remote: "aaa:99:X|bbb:3:X|ccx:101:X|ddd:103:Y|eee:11:X|fff:102:X",
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lastRemoteIndex: 11,
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expected: "set:aaa:X|delete:ccc:X|set:ccx:X|set:ddd:Y|set:fff:X",
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},
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}
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for i, test := range tests {
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local, remote := parseACLs(test.local), parseACLs(test.remote)
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changes := reconcileLegacyACLs(local, remote, test.lastRemoteIndex)
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if actual := parseChanges(changes); actual != test.expected {
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t.Errorf("test case %d failed: %s", i, actual)
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}
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}
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}
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func TestACLReplication_updateLocalACLs_RateLimit(t *testing.T) {
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t.Parallel()
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dir1, s1 := testServerWithConfig(t, func(c *Config) {
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c.Datacenter = "dc2"
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c.ACLDatacenter = "dc1"
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c.ACLsEnabled = true
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c.ACLReplicationApplyLimit = 1
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})
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s1.tokens.UpdateReplicationToken("secret", tokenStore.TokenSourceConfig)
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defer os.RemoveAll(dir1)
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defer s1.Shutdown()
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testrpc.WaitForLeader(t, s1.RPC, "dc2")
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changes := structs.ACLRequests{
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&structs.ACLRequest{
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Op: structs.ACLSet,
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ACL: structs.ACL{
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ID: "secret",
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Type: "client",
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},
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},
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}
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// Should be throttled to 1 Hz.
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start := time.Now()
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if _, err := s1.updateLocalLegacyACLs(changes, context.Background()); err != nil {
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t.Fatalf("err: %v", err)
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}
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if dur := time.Since(start); dur < time.Second {
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t.Fatalf("too slow: %9.6f", dur.Seconds())
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}
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changes = append(changes,
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&structs.ACLRequest{
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Op: structs.ACLSet,
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ACL: structs.ACL{
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ID: "secret",
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Type: "client",
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},
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})
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// Should be throttled to 1 Hz.
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start = time.Now()
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if _, err := s1.updateLocalLegacyACLs(changes, context.Background()); err != nil {
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t.Fatalf("err: %v", err)
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}
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if dur := time.Since(start); dur < 2*time.Second {
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t.Fatalf("too fast: %9.6f", dur.Seconds())
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}
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}
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func TestACLReplication_IsACLReplicationEnabled(t *testing.T) {
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t.Parallel()
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// ACLs not enabled.
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dir1, s1 := testServerWithConfig(t, func(c *Config) {
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c.ACLDatacenter = ""
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c.ACLsEnabled = false
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})
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defer os.RemoveAll(dir1)
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defer s1.Shutdown()
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if s1.IsACLReplicationEnabled() {
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t.Fatalf("should not be enabled")
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}
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// ACLs enabled but not replication.
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dir2, s2 := testServerWithConfig(t, func(c *Config) {
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c.Datacenter = "dc2"
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c.ACLDatacenter = "dc1"
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c.ACLsEnabled = true
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})
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defer os.RemoveAll(dir2)
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defer s2.Shutdown()
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testrpc.WaitForLeader(t, s1.RPC, "dc1")
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testrpc.WaitForLeader(t, s2.RPC, "dc2")
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if s2.IsACLReplicationEnabled() {
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t.Fatalf("should not be enabled")
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}
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// ACLs enabled with replication.
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dir3, s3 := testServerWithConfig(t, func(c *Config) {
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c.Datacenter = "dc2"
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c.ACLDatacenter = "dc1"
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c.ACLsEnabled = true
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c.ACLTokenReplication = true
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})
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defer os.RemoveAll(dir3)
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defer s3.Shutdown()
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testrpc.WaitForLeader(t, s3.RPC, "dc2")
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if !s3.IsACLReplicationEnabled() {
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t.Fatalf("should be enabled")
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}
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// ACLs enabled with replication, but inside the ACL datacenter
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// so replication should be disabled.
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dir4, s4 := testServerWithConfig(t, func(c *Config) {
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c.Datacenter = "dc1"
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c.ACLDatacenter = "dc1"
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c.ACLsEnabled = true
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c.ACLTokenReplication = true
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})
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defer os.RemoveAll(dir4)
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defer s4.Shutdown()
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testrpc.WaitForLeader(t, s4.RPC, "dc1")
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if s4.IsACLReplicationEnabled() {
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t.Fatalf("should not be enabled")
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}
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}
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// Note that this test is testing that legacy token data is replicated, NOT
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// directly testing the legacy acl replication goroutine code.
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//
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// Actually testing legacy replication is difficult to do without old binaries.
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func TestACLReplication_LegacyTokens(t *testing.T) {
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t.Parallel()
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dir1, s1 := testServerWithConfig(t, func(c *Config) {
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c.ACLDatacenter = "dc1"
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c.ACLsEnabled = true
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c.ACLMasterToken = "root"
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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.ACLDatacenter = "dc1"
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c.ACLsEnabled = true
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c.ACLTokenReplication = true
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c.ACLReplicationRate = 100
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c.ACLReplicationBurst = 100
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c.ACLReplicationApplyLimit = 1000000
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})
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s2.tokens.UpdateReplicationToken("root", tokenStore.TokenSourceConfig)
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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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// Wait for legacy acls to be disabled so we are clear that
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// legacy replication isn't meddling.
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waitForNewACLs(t, s1)
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waitForNewACLs(t, s2)
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waitForNewACLReplication(t, s2, structs.ACLReplicateTokens)
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// Create a bunch of new tokens.
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var id string
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for i := 0; i < 50; i++ {
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arg := structs.ACLRequest{
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Datacenter: "dc1",
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Op: structs.ACLSet,
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ACL: structs.ACL{
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Name: "User token",
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Type: structs.ACLTokenTypeClient,
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Rules: testACLPolicy,
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},
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WriteRequest: structs.WriteRequest{Token: "root"},
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}
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if err := s1.RPC("ACL.Apply", &arg, &id); err != nil {
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t.Fatalf("err: %v", err)
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}
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}
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checkSame := func() error {
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index, remote, err := s1.fsm.State().ACLTokenList(nil, true, true, "", "", "")
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if err != nil {
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return err
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}
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_, local, err := s2.fsm.State().ACLTokenList(nil, true, true, "", "", "")
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if err != nil {
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return err
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}
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if got, want := len(remote), len(local); got != want {
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return fmt.Errorf("got %d remote ACLs want %d", got, want)
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}
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for i, token := range remote {
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if !bytes.Equal(token.Hash, local[i].Hash) {
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return fmt.Errorf("ACLs differ")
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}
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}
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var status structs.ACLReplicationStatus
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s2.aclReplicationStatusLock.RLock()
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status = s2.aclReplicationStatus
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s2.aclReplicationStatusLock.RUnlock()
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if !status.Enabled || !status.Running ||
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status.ReplicatedTokenIndex != index ||
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status.SourceDatacenter != "dc1" {
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return fmt.Errorf("ACL replication status differs")
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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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if err := checkSame(); err != nil {
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r.Fatal(err)
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}
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})
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// Create more new tokens.
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for i := 0; i < 50; i++ {
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arg := structs.ACLRequest{
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Datacenter: "dc1",
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Op: structs.ACLSet,
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ACL: structs.ACL{
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Name: "User token",
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Type: structs.ACLTokenTypeClient,
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Rules: testACLPolicy,
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},
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WriteRequest: structs.WriteRequest{Token: "root"},
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}
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var dontCare string
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if err := s1.RPC("ACL.Apply", &arg, &dontCare); err != nil {
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t.Fatalf("err: %v", err)
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}
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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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if err := checkSame(); err != nil {
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r.Fatal(err)
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}
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})
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// Delete a token.
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arg := structs.ACLRequest{
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Datacenter: "dc1",
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Op: structs.ACLDelete,
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ACL: structs.ACL{
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ID: id,
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},
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WriteRequest: structs.WriteRequest{Token: "root"},
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}
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var dontCare string
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if err := s1.RPC("ACL.Apply", &arg, &dontCare); err != nil {
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t.Fatalf("err: %v", err)
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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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if err := checkSame(); err != nil {
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r.Fatal(err)
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}
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})
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}
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