722 lines
17 KiB
Go
722 lines
17 KiB
Go
package consul
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import (
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"errors"
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"fmt"
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"net"
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"regexp"
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"testing"
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"github.com/hashicorp/consul/agent/metadata"
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"github.com/hashicorp/consul/agent/structs"
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"github.com/hashicorp/go-version"
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"github.com/hashicorp/serf/serf"
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"github.com/stretchr/testify/require"
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)
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func TestGetPrivateIP(t *testing.T) {
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t.Parallel()
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ip, _, err := net.ParseCIDR("10.1.2.3/32")
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if err != nil {
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t.Fatalf("failed to parse private cidr: %v", err)
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}
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pubIP, _, err := net.ParseCIDR("8.8.8.8/32")
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if err != nil {
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t.Fatalf("failed to parse public cidr: %v", err)
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}
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tests := []struct {
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addrs []net.Addr
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expected net.IP
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err error
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}{
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{
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addrs: []net.Addr{
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&net.IPAddr{
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IP: ip,
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},
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&net.IPAddr{
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IP: pubIP,
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},
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},
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expected: ip,
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},
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{
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addrs: []net.Addr{
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&net.IPAddr{
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IP: pubIP,
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},
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},
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err: errors.New("No private IP address found"),
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},
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{
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addrs: []net.Addr{
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&net.IPAddr{
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IP: ip,
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},
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&net.IPAddr{
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IP: ip,
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},
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&net.IPAddr{
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IP: pubIP,
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},
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},
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err: errors.New("Multiple private IPs found. Please configure one."),
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},
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}
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for _, test := range tests {
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ip, err := getPrivateIP(test.addrs)
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switch {
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case test.err != nil && err != nil:
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if err.Error() != test.err.Error() {
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t.Fatalf("unexpected error: %v != %v", test.err, err)
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}
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case (test.err == nil && err != nil) || (test.err != nil && err == nil):
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t.Fatalf("unexpected error: %v != %v", test.err, err)
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default:
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if !test.expected.Equal(ip) {
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t.Fatalf("unexpected ip: %v != %v", ip, test.expected)
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}
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}
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}
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}
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func TestIsPrivateIP(t *testing.T) {
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t.Parallel()
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if !isPrivateIP("192.168.1.1") {
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t.Fatalf("bad")
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}
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if !isPrivateIP("172.16.45.100") {
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t.Fatalf("bad")
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}
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if !isPrivateIP("10.1.2.3") {
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t.Fatalf("bad")
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}
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if !isPrivateIP("100.115.110.19") {
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t.Fatalf("bad")
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}
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if isPrivateIP("8.8.8.8") {
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t.Fatalf("bad")
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}
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if !isPrivateIP("127.0.0.1") {
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t.Fatalf("bad")
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}
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}
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func TestUtil_CanServersUnderstandProtocol(t *testing.T) {
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t.Parallel()
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var members []serf.Member
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// All empty list cases should return false.
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for v := ProtocolVersionMin; v <= ProtocolVersionMax; v++ {
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grok, err := CanServersUnderstandProtocol(members, v)
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if err != nil {
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t.Fatalf("err: %v", err)
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}
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if grok {
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t.Fatalf("empty list should always return false")
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}
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}
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// Add a non-server member.
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members = append(members, serf.Member{
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Tags: map[string]string{
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"vsn_min": fmt.Sprintf("%d", ProtocolVersionMin),
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"vsn_max": fmt.Sprintf("%d", ProtocolVersionMax),
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},
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})
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// Make sure it doesn't get counted.
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for v := ProtocolVersionMin; v <= ProtocolVersionMax; v++ {
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grok, err := CanServersUnderstandProtocol(members, v)
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if err != nil {
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t.Fatalf("err: %v", err)
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}
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if grok {
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t.Fatalf("non-server members should not be counted")
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}
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}
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// Add a server member.
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members = append(members, serf.Member{
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Tags: map[string]string{
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"role": "consul",
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"vsn_min": fmt.Sprintf("%d", ProtocolVersionMin),
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"vsn_max": fmt.Sprintf("%d", ProtocolVersionMax),
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},
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})
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// Now it should report that it understands.
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for v := ProtocolVersionMin; v <= ProtocolVersionMax; v++ {
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grok, err := CanServersUnderstandProtocol(members, v)
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if err != nil {
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t.Fatalf("err: %v", err)
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}
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if !grok {
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t.Fatalf("server should grok")
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}
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}
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// Nobody should understand anything from the future.
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for v := uint8(ProtocolVersionMax + 1); v <= uint8(ProtocolVersionMax+10); v++ {
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grok, err := CanServersUnderstandProtocol(members, v)
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if err != nil {
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t.Fatalf("err: %v", err)
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}
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if grok {
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t.Fatalf("server should not grok")
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}
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}
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// Add an older server.
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members = append(members, serf.Member{
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Tags: map[string]string{
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"role": "consul",
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"vsn_min": fmt.Sprintf("%d", ProtocolVersionMin),
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"vsn_max": fmt.Sprintf("%d", ProtocolVersionMax-1),
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},
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})
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// The servers should no longer understand the max version.
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for v := ProtocolVersionMin; v <= ProtocolVersionMax; v++ {
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grok, err := CanServersUnderstandProtocol(members, v)
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if err != nil {
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t.Fatalf("err: %v", err)
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}
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expected := v < ProtocolVersionMax
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if grok != expected {
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t.Fatalf("bad: %v != %v", grok, expected)
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}
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}
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// Try a version that's too low for the minimum.
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{
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grok, err := CanServersUnderstandProtocol(members, 0)
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if err != nil {
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t.Fatalf("err: %v", err)
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}
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if grok {
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t.Fatalf("server should not grok")
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}
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}
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}
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func TestIsConsulNode(t *testing.T) {
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t.Parallel()
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m := serf.Member{
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Tags: map[string]string{
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"role": "node",
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"dc": "east-aws",
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},
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}
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valid, dc := isConsulNode(m)
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if !valid || dc != "east-aws" {
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t.Fatalf("bad: %v %v", valid, dc)
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}
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}
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func TestByteConversion(t *testing.T) {
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t.Parallel()
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var val uint64 = 2 << 50
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raw := uint64ToBytes(val)
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if bytesToUint64(raw) != val {
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t.Fatalf("no match")
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}
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}
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func TestGenerateUUID(t *testing.T) {
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t.Parallel()
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prev := generateUUID()
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re, err := regexp.Compile("[\\da-f]{8}-[\\da-f]{4}-[\\da-f]{4}-[\\da-f]{4}-[\\da-f]{12}")
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require.NoError(t, err)
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for i := 0; i < 100; i++ {
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id := generateUUID()
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if prev == id {
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t.Fatalf("Should get a new ID!")
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}
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matched := re.MatchString(id)
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if !matched {
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t.Fatalf("expected match %s %v %s", id, matched, err)
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}
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}
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}
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func TestGetPublicIPv6(t *testing.T) {
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t.Parallel()
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ip, _, err := net.ParseCIDR("fe80::1/128")
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if err != nil {
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t.Fatalf("failed to parse link-local cidr: %v", err)
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}
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ip2, _, err := net.ParseCIDR("::1/128")
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if err != nil {
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t.Fatalf("failed to parse loopback cidr: %v", err)
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}
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ip3, _, err := net.ParseCIDR("fc00::1/128")
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if err != nil {
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t.Fatalf("failed to parse ULA cidr: %v", err)
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}
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pubIP, _, err := net.ParseCIDR("2001:0db8:85a3::8a2e:0370:7334/128")
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if err != nil {
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t.Fatalf("failed to parse public cidr: %v", err)
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}
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tests := []struct {
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addrs []net.Addr
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expected net.IP
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err error
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}{
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{
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addrs: []net.Addr{
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&net.IPAddr{
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IP: ip,
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},
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&net.IPAddr{
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IP: ip2,
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},
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&net.IPAddr{
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IP: ip3,
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},
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&net.IPAddr{
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IP: pubIP,
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},
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},
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expected: pubIP,
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},
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{
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addrs: []net.Addr{
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&net.IPAddr{
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IP: ip,
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},
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&net.IPAddr{
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IP: ip2,
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},
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&net.IPAddr{
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IP: ip3,
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},
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},
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err: errors.New("No public IPv6 address found"),
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},
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{
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addrs: []net.Addr{
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&net.IPAddr{
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IP: ip,
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},
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&net.IPAddr{
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IP: ip,
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},
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&net.IPAddr{
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IP: pubIP,
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},
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&net.IPAddr{
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IP: pubIP,
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},
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},
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err: errors.New("Multiple public IPv6 addresses found. Please configure one."),
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},
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}
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for _, test := range tests {
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ip, err := getPublicIPv6(test.addrs)
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switch {
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case test.err != nil && err != nil:
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if err.Error() != test.err.Error() {
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t.Fatalf("unexpected error: %v != %v", test.err, err)
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}
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case (test.err == nil && err != nil) || (test.err != nil && err == nil):
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t.Fatalf("unexpected error: %v != %v", test.err, err)
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default:
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if !test.expected.Equal(ip) {
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t.Fatalf("unexpected ip: %v != %v", ip, test.expected)
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}
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}
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}
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}
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type testServersProvider []metadata.Server
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func (p testServersProvider) CheckServers(datacenter string, fn func(*metadata.Server) bool) {
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for _, srv := range p {
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// filter these out - now I don't have to modify the tests. Originally the dc filtering
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// happened in the ServersInDCMeetMinimumVersion, now we get a list of servers to check
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// through the routing infrastructure or server lookup which will map a datacenter to a
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// list of metadata.Server structs that are all in that datacenter.
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if srv.Datacenter != datacenter {
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continue
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}
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if !fn(&srv) {
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return
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}
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}
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}
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func TestServersInDCMeetMinimumVersion(t *testing.T) {
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t.Parallel()
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makeServer := func(versionStr string, datacenter string) metadata.Server {
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return metadata.Server{
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Name: "foo",
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ShortName: "foo",
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ID: "asdf",
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Port: 10000,
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Expect: 3,
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RaftVersion: 3,
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Status: serf.StatusAlive,
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WanJoinPort: 1234,
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Version: 1,
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Build: *version.Must(version.NewVersion(versionStr)),
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Datacenter: datacenter,
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}
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}
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cases := []struct {
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servers testServersProvider
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ver *version.Version
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expected bool
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expectedFound bool
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}{
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// One server, meets reqs
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{
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servers: testServersProvider{
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makeServer("0.7.5", "primary"),
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makeServer("0.7.3", "secondary"),
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},
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ver: version.Must(version.NewVersion("0.7.5")),
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expected: true,
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expectedFound: true,
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},
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// One server, doesn't meet reqs
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{
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servers: testServersProvider{
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makeServer("0.7.5", "primary"),
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makeServer("0.8.1", "secondary"),
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},
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ver: version.Must(version.NewVersion("0.8.0")),
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expected: false,
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expectedFound: true,
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},
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// Multiple servers, meets req version
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{
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servers: testServersProvider{
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makeServer("0.7.5", "primary"),
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makeServer("0.8.0", "primary"),
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makeServer("0.7.0", "secondary"),
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},
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ver: version.Must(version.NewVersion("0.7.5")),
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expected: true,
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expectedFound: true,
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},
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// Multiple servers, doesn't meet req version
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{
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servers: testServersProvider{
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makeServer("0.7.5", "primary"),
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makeServer("0.8.0", "primary"),
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makeServer("0.9.1", "secondary"),
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},
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ver: version.Must(version.NewVersion("0.8.0")),
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expected: false,
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expectedFound: true,
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},
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{
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servers: testServersProvider{
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makeServer("0.7.5", "secondary"),
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makeServer("0.8.0", "secondary"),
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makeServer("0.9.1", "secondary"),
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},
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ver: version.Must(version.NewVersion("0.7.0")),
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expected: true,
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expectedFound: false,
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},
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}
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for _, tc := range cases {
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result, found := ServersInDCMeetMinimumVersion(tc.servers, "primary", tc.ver)
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require.Equal(t, tc.expected, result)
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require.Equal(t, tc.expectedFound, found)
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}
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}
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func TestInterpolateHIL(t *testing.T) {
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for name, test := range map[string]struct {
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in string
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vars map[string]string
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exp string // when lower=false
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expLower string // when lower=true
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ok bool
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}{
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// valid HIL
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"empty": {
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"",
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map[string]string{},
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"",
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"",
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true,
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},
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"no vars": {
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"nothing",
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map[string]string{},
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"nothing",
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"nothing",
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true,
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},
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"just lowercase var": {
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"${item}",
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map[string]string{"item": "value"},
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"value",
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"value",
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true,
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},
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"just uppercase var": {
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"${item}",
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map[string]string{"item": "VaLuE"},
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"VaLuE",
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"value",
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true,
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},
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"lowercase var in middle": {
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"before ${item}after",
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map[string]string{"item": "value"},
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"before valueafter",
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"before valueafter",
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true,
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},
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"uppercase var in middle": {
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"before ${item}after",
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map[string]string{"item": "VaLuE"},
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"before VaLuEafter",
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"before valueafter",
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true,
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},
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"two vars": {
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"before ${item}after ${more}",
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map[string]string{"item": "value", "more": "xyz"},
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"before valueafter xyz",
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"before valueafter xyz",
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true,
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},
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"missing map val": {
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"${item}",
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map[string]string{"item": ""},
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"",
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"",
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true,
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},
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// "weird" HIL, but not technically invalid
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"just end": {
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"}",
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map[string]string{},
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"}",
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"}",
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true,
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},
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"var without start": {
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" item }",
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map[string]string{"item": "value"},
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" item }",
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" item }",
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true,
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},
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"two vars missing second start": {
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"before ${ item }after more }",
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map[string]string{"item": "value", "more": "xyz"},
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"before valueafter more }",
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"before valueafter more }",
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true,
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},
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// invalid HIL
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"just start": {
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"${",
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map[string]string{},
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"",
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"",
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false,
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},
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"backwards": {
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"}${",
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map[string]string{},
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"",
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"",
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false,
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},
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"no varname": {
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"${}",
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map[string]string{},
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"",
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"",
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false,
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},
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"missing map key": {
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"${item}",
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map[string]string{},
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"",
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"",
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false,
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},
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"var without end": {
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"${ item ",
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map[string]string{"item": "value"},
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"",
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"",
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false,
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},
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"two vars missing first end": {
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"before ${ item after ${ more }",
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map[string]string{"item": "value", "more": "xyz"},
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"",
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"",
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false,
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},
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} {
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test := test
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t.Run(name+" lower=false", func(t *testing.T) {
|
|
out, err := InterpolateHIL(test.in, test.vars, false)
|
|
if test.ok {
|
|
require.NoError(t, err)
|
|
require.Equal(t, test.exp, out)
|
|
} else {
|
|
require.NotNil(t, err)
|
|
require.Equal(t, out, "")
|
|
}
|
|
})
|
|
t.Run(name+" lower=true", func(t *testing.T) {
|
|
out, err := InterpolateHIL(test.in, test.vars, true)
|
|
if test.ok {
|
|
require.NoError(t, err)
|
|
require.Equal(t, test.expLower, out)
|
|
} else {
|
|
require.NotNil(t, err)
|
|
require.Equal(t, out, "")
|
|
}
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestServersGetACLMode(t *testing.T) {
|
|
t.Parallel()
|
|
makeServer := func(datacenter string, acls structs.ACLMode, status serf.MemberStatus, addr net.IP) metadata.Server {
|
|
return metadata.Server{
|
|
Name: "foo",
|
|
ShortName: "foo",
|
|
ID: "asdf",
|
|
Port: 10000,
|
|
Expect: 3,
|
|
RaftVersion: 3,
|
|
Status: status,
|
|
WanJoinPort: 1234,
|
|
Version: 1,
|
|
Addr: &net.TCPAddr{IP: addr, Port: 10000},
|
|
// shouldn't matter for these tests
|
|
Build: *version.Must(version.NewVersion("1.7.0")),
|
|
Datacenter: datacenter,
|
|
ACLs: acls,
|
|
}
|
|
}
|
|
|
|
type tcase struct {
|
|
servers testServersProvider
|
|
leaderAddr string
|
|
datacenter string
|
|
foundServers bool
|
|
minMode structs.ACLMode
|
|
leaderMode structs.ACLMode
|
|
}
|
|
|
|
cases := map[string]tcase{
|
|
"filter-members": tcase{
|
|
servers: testServersProvider{
|
|
makeServer("primary", structs.ACLModeLegacy, serf.StatusAlive, net.IP([]byte{127, 0, 0, 1})),
|
|
makeServer("primary", structs.ACLModeLegacy, serf.StatusFailed, net.IP([]byte{127, 0, 0, 2})),
|
|
// filtered datacenter
|
|
makeServer("secondary", structs.ACLModeUnknown, serf.StatusAlive, net.IP([]byte{127, 0, 0, 4})),
|
|
// filtered status
|
|
makeServer("primary", structs.ACLModeUnknown, serf.StatusLeaving, net.IP([]byte{127, 0, 0, 5})),
|
|
// filtered status
|
|
makeServer("primary", structs.ACLModeUnknown, serf.StatusLeft, net.IP([]byte{127, 0, 0, 6})),
|
|
// filtered status
|
|
makeServer("primary", structs.ACLModeUnknown, serf.StatusNone, net.IP([]byte{127, 0, 0, 7})),
|
|
},
|
|
foundServers: true,
|
|
leaderAddr: "127.0.0.1:10000",
|
|
datacenter: "primary",
|
|
minMode: structs.ACLModeLegacy,
|
|
leaderMode: structs.ACLModeLegacy,
|
|
},
|
|
"disabled": tcase{
|
|
servers: testServersProvider{
|
|
makeServer("primary", structs.ACLModeLegacy, serf.StatusAlive, net.IP([]byte{127, 0, 0, 1})),
|
|
makeServer("primary", structs.ACLModeUnknown, serf.StatusAlive, net.IP([]byte{127, 0, 0, 2})),
|
|
makeServer("primary", structs.ACLModeDisabled, serf.StatusAlive, net.IP([]byte{127, 0, 0, 3})),
|
|
},
|
|
foundServers: true,
|
|
leaderAddr: "127.0.0.1:10000",
|
|
datacenter: "primary",
|
|
minMode: structs.ACLModeDisabled,
|
|
leaderMode: structs.ACLModeLegacy,
|
|
},
|
|
"unknown": tcase{
|
|
servers: testServersProvider{
|
|
makeServer("primary", structs.ACLModeLegacy, serf.StatusAlive, net.IP([]byte{127, 0, 0, 1})),
|
|
makeServer("primary", structs.ACLModeUnknown, serf.StatusAlive, net.IP([]byte{127, 0, 0, 2})),
|
|
},
|
|
foundServers: true,
|
|
leaderAddr: "127.0.0.1:10000",
|
|
datacenter: "primary",
|
|
minMode: structs.ACLModeUnknown,
|
|
leaderMode: structs.ACLModeLegacy,
|
|
},
|
|
"legacy": tcase{
|
|
servers: testServersProvider{
|
|
makeServer("primary", structs.ACLModeEnabled, serf.StatusAlive, net.IP([]byte{127, 0, 0, 1})),
|
|
makeServer("primary", structs.ACLModeLegacy, serf.StatusAlive, net.IP([]byte{127, 0, 0, 2})),
|
|
},
|
|
foundServers: true,
|
|
leaderAddr: "127.0.0.1:10000",
|
|
datacenter: "primary",
|
|
minMode: structs.ACLModeLegacy,
|
|
leaderMode: structs.ACLModeEnabled,
|
|
},
|
|
"enabled": tcase{
|
|
servers: testServersProvider{
|
|
makeServer("primary", structs.ACLModeEnabled, serf.StatusAlive, net.IP([]byte{127, 0, 0, 1})),
|
|
makeServer("primary", structs.ACLModeEnabled, serf.StatusAlive, net.IP([]byte{127, 0, 0, 2})),
|
|
makeServer("primary", structs.ACLModeEnabled, serf.StatusAlive, net.IP([]byte{127, 0, 0, 3})),
|
|
},
|
|
foundServers: true,
|
|
leaderAddr: "127.0.0.1:10000",
|
|
datacenter: "primary",
|
|
minMode: structs.ACLModeEnabled,
|
|
leaderMode: structs.ACLModeEnabled,
|
|
},
|
|
"failed-members": tcase{
|
|
servers: testServersProvider{
|
|
makeServer("primary", structs.ACLModeLegacy, serf.StatusAlive, net.IP([]byte{127, 0, 0, 1})),
|
|
makeServer("primary", structs.ACLModeUnknown, serf.StatusFailed, net.IP([]byte{127, 0, 0, 2})),
|
|
makeServer("primary", structs.ACLModeLegacy, serf.StatusFailed, net.IP([]byte{127, 0, 0, 3})),
|
|
},
|
|
foundServers: true,
|
|
leaderAddr: "127.0.0.1:10000",
|
|
datacenter: "primary",
|
|
minMode: structs.ACLModeUnknown,
|
|
leaderMode: structs.ACLModeLegacy,
|
|
},
|
|
}
|
|
|
|
for name, tc := range cases {
|
|
name := name
|
|
tc := tc
|
|
t.Run(name, func(t *testing.T) {
|
|
actualServers, actualMinMode, actualLeaderMode := ServersGetACLMode(tc.servers, tc.leaderAddr, tc.datacenter)
|
|
|
|
require.Equal(t, tc.minMode, actualMinMode)
|
|
require.Equal(t, tc.leaderMode, actualLeaderMode)
|
|
require.Equal(t, tc.foundServers, actualServers)
|
|
})
|
|
}
|
|
}
|