686 lines
19 KiB
Go
686 lines
19 KiB
Go
package envoy
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import (
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"encoding/json"
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"flag"
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"io/ioutil"
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"net"
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"net/http"
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"net/http/httptest"
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"os"
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"path/filepath"
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"strings"
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"testing"
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"github.com/hashicorp/consul/agent"
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"github.com/hashicorp/consul/agent/xds"
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"github.com/hashicorp/consul/api"
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"github.com/hashicorp/consul/sdk/testutil"
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"github.com/mitchellh/cli"
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"github.com/stretchr/testify/require"
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)
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var update = flag.Bool("update", false, "update golden files")
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func TestEnvoyCommand_noTabs(t *testing.T) {
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t.Parallel()
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if strings.ContainsRune(New(nil).Help(), '\t') {
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t.Fatal("help has tabs")
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}
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}
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// testSetAndResetEnv sets the env vars passed as KEY=value strings in the
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// current ENV and returns a func() that will undo it's work at the end of the
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// test for use with defer.
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func testSetAndResetEnv(t *testing.T, env []string) func() {
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old := make(map[string]*string)
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for _, e := range env {
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pair := strings.SplitN(e, "=", 2)
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current := os.Getenv(pair[0])
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if current != "" {
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old[pair[0]] = ¤t
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} else {
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// save it as a nil so we know to remove again
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old[pair[0]] = nil
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}
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os.Setenv(pair[0], pair[1])
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}
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// Return a func that will reset to old values
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return func() {
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for k, v := range old {
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if v == nil {
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os.Unsetenv(k)
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} else {
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os.Setenv(k, *v)
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}
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}
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}
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}
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// This tests the args we use to generate the template directly because they
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// encapsulate all the argument and default handling code which is where most of
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// the logic is. We also allow generating golden files but only for cases that
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// pass the test of having their template args generated as expected.
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func TestGenerateConfig(t *testing.T) {
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cases := []struct {
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Name string
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Flags []string
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Env []string
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Files map[string]string
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ProxyConfig map[string]interface{}
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GRPCPort int // only used for testing custom-configured grpc port
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WantArgs BootstrapTplArgs
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WantErr string
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}{
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{
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Name: "no-args",
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Flags: []string{},
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Env: []string{},
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WantErr: "No proxy ID specified",
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},
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{
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Name: "defaults",
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Flags: []string{"-proxy-id", "test-proxy"},
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Env: []string{},
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WantArgs: BootstrapTplArgs{
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ProxyCluster: "test-proxy",
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ProxyID: "test-proxy",
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AgentAddress: "127.0.0.1",
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AgentPort: "8502", // Note this is the gRPC port
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AdminAccessLogPath: "/dev/null",
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AdminBindAddress: "127.0.0.1",
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AdminBindPort: "19000",
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LocalAgentClusterName: xds.LocalAgentClusterName,
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},
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},
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{
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Name: "token-arg",
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Flags: []string{"-proxy-id", "test-proxy",
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"-token", "c9a52720-bf6c-4aa6-b8bc-66881a5ade95"},
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Env: []string{},
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WantArgs: BootstrapTplArgs{
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ProxyCluster: "test-proxy",
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ProxyID: "test-proxy",
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AgentAddress: "127.0.0.1",
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AgentPort: "8502", // Note this is the gRPC port
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AdminAccessLogPath: "/dev/null",
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AdminBindAddress: "127.0.0.1",
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AdminBindPort: "19000",
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LocalAgentClusterName: xds.LocalAgentClusterName,
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Token: "c9a52720-bf6c-4aa6-b8bc-66881a5ade95",
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},
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},
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{
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Name: "token-env",
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Flags: []string{"-proxy-id", "test-proxy"},
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Env: []string{
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"CONSUL_HTTP_TOKEN=c9a52720-bf6c-4aa6-b8bc-66881a5ade95",
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},
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WantArgs: BootstrapTplArgs{
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ProxyCluster: "test-proxy",
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ProxyID: "test-proxy",
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AgentAddress: "127.0.0.1",
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AgentPort: "8502", // Note this is the gRPC port
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AdminAccessLogPath: "/dev/null",
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AdminBindAddress: "127.0.0.1",
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AdminBindPort: "19000",
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LocalAgentClusterName: xds.LocalAgentClusterName,
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Token: "c9a52720-bf6c-4aa6-b8bc-66881a5ade95",
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},
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},
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{
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Name: "token-file-arg",
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Flags: []string{"-proxy-id", "test-proxy",
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"-token-file", "@@TEMPDIR@@token.txt",
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},
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Env: []string{},
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Files: map[string]string{
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"token.txt": "c9a52720-bf6c-4aa6-b8bc-66881a5ade95",
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},
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WantArgs: BootstrapTplArgs{
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ProxyCluster: "test-proxy",
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ProxyID: "test-proxy",
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AgentAddress: "127.0.0.1",
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AgentPort: "8502", // Note this is the gRPC port
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AdminAccessLogPath: "/dev/null",
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AdminBindAddress: "127.0.0.1",
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AdminBindPort: "19000",
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LocalAgentClusterName: xds.LocalAgentClusterName,
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Token: "c9a52720-bf6c-4aa6-b8bc-66881a5ade95",
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},
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},
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{
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Name: "token-file-env",
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Flags: []string{"-proxy-id", "test-proxy"},
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Env: []string{
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"CONSUL_HTTP_TOKEN_FILE=@@TEMPDIR@@token.txt",
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},
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Files: map[string]string{
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"token.txt": "c9a52720-bf6c-4aa6-b8bc-66881a5ade95",
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},
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WantArgs: BootstrapTplArgs{
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ProxyCluster: "test-proxy",
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ProxyID: "test-proxy",
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AgentAddress: "127.0.0.1",
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AgentPort: "8502", // Note this is the gRPC port
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AdminAccessLogPath: "/dev/null",
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AdminBindAddress: "127.0.0.1",
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AdminBindPort: "19000",
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LocalAgentClusterName: xds.LocalAgentClusterName,
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Token: "c9a52720-bf6c-4aa6-b8bc-66881a5ade95",
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},
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},
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{
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Name: "grpc-addr-flag",
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Flags: []string{"-proxy-id", "test-proxy",
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"-grpc-addr", "localhost:9999"},
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Env: []string{},
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WantArgs: BootstrapTplArgs{
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ProxyCluster: "test-proxy",
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ProxyID: "test-proxy",
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// Should resolve IP, note this might not resolve the same way
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// everywhere which might make this test brittle but not sure what else
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// to do.
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AgentAddress: "127.0.0.1",
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AgentPort: "9999",
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AdminAccessLogPath: "/dev/null",
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AdminBindAddress: "127.0.0.1",
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AdminBindPort: "19000",
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LocalAgentClusterName: xds.LocalAgentClusterName,
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},
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},
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{
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Name: "grpc-addr-env",
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Flags: []string{"-proxy-id", "test-proxy"},
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Env: []string{
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"CONSUL_GRPC_ADDR=localhost:9999",
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},
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WantArgs: BootstrapTplArgs{
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ProxyCluster: "test-proxy",
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ProxyID: "test-proxy",
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// Should resolve IP, note this might not resolve the same way
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// everywhere which might make this test brittle but not sure what else
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// to do.
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AgentAddress: "127.0.0.1",
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AgentPort: "9999",
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AdminAccessLogPath: "/dev/null",
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AdminBindAddress: "127.0.0.1",
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AdminBindPort: "19000",
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LocalAgentClusterName: xds.LocalAgentClusterName,
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},
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},
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{
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Name: "grpc-addr-unix",
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Flags: []string{"-proxy-id", "test-proxy",
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"-grpc-addr", "unix:///var/run/consul.sock"},
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Env: []string{},
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WantArgs: BootstrapTplArgs{
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ProxyCluster: "test-proxy",
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ProxyID: "test-proxy",
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AgentSocket: "/var/run/consul.sock",
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AdminAccessLogPath: "/dev/null",
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AdminBindAddress: "127.0.0.1",
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AdminBindPort: "19000",
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LocalAgentClusterName: xds.LocalAgentClusterName,
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},
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},
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{
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Name: "grpc-addr-config",
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Flags: []string{"-proxy-id", "test-proxy"},
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GRPCPort: 9999,
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WantArgs: BootstrapTplArgs{
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ProxyCluster: "test-proxy",
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ProxyID: "test-proxy",
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// Should resolve IP, note this might not resolve the same way
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// everywhere which might make this test brittle but not sure what else
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// to do.
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AgentAddress: "127.0.0.1",
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AgentPort: "9999",
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AdminAccessLogPath: "/dev/null",
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AdminBindAddress: "127.0.0.1",
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AdminBindPort: "19000",
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LocalAgentClusterName: xds.LocalAgentClusterName,
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},
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},
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{
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Name: "access-log-path",
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Flags: []string{"-proxy-id", "test-proxy", "-admin-access-log-path", "/some/path/access.log"},
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Env: []string{},
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WantArgs: BootstrapTplArgs{
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ProxyCluster: "test-proxy",
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ProxyID: "test-proxy",
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// Should resolve IP, note this might not resolve the same way
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// everywhere which might make this test brittle but not sure what else
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// to do.
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AgentAddress: "127.0.0.1",
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AgentPort: "8502",
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AdminAccessLogPath: "/some/path/access.log",
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AdminBindAddress: "127.0.0.1",
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AdminBindPort: "19000",
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LocalAgentClusterName: xds.LocalAgentClusterName,
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},
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},
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{
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Name: "custom-bootstrap",
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Flags: []string{"-proxy-id", "test-proxy"},
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Env: []string{},
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ProxyConfig: map[string]interface{}{
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// Add a completely custom bootstrap template. Never mind if this is
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// invalid envoy config just as long as it works and gets the variables
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// interplated.
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"envoy_bootstrap_json_tpl": `
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{
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"admin": {
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"access_log_path": "/dev/null",
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"address": {
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"socket_address": {
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"address": "{{ .AdminBindAddress }}",
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"port_value": {{ .AdminBindPort }}
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}
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}
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},
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"node": {
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"cluster": "{{ .ProxyCluster }}",
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"id": "{{ .ProxyID }}"
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},
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"custom_field": "foo"
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}`,
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},
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WantArgs: BootstrapTplArgs{
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ProxyCluster: "test-proxy",
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ProxyID: "test-proxy",
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AgentAddress: "127.0.0.1",
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AgentPort: "8502",
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AdminAccessLogPath: "/dev/null",
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AdminBindAddress: "127.0.0.1",
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AdminBindPort: "19000",
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LocalAgentClusterName: xds.LocalAgentClusterName,
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},
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},
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{
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Name: "extra_-single",
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Flags: []string{"-proxy-id", "test-proxy"},
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Env: []string{},
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ProxyConfig: map[string]interface{}{
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// Add a custom sections with interpolated variables. These are all
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// invalid config syntax too but we are just testing they have the right
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// effect.
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"envoy_extra_static_clusters_json": `
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{
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"name": "fake_cluster_1"
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}`,
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"envoy_extra_static_listeners_json": `
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{
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"name": "fake_listener_1"
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}`,
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"envoy_extra_stats_sinks_json": `
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{
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"name": "fake_sink_1"
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}`,
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},
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WantArgs: BootstrapTplArgs{
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ProxyCluster: "test-proxy",
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ProxyID: "test-proxy",
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AgentAddress: "127.0.0.1",
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AgentPort: "8502",
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AdminAccessLogPath: "/dev/null",
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AdminBindAddress: "127.0.0.1",
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AdminBindPort: "19000",
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LocalAgentClusterName: xds.LocalAgentClusterName,
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},
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},
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{
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Name: "extra_-multiple",
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Flags: []string{"-proxy-id", "test-proxy"},
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Env: []string{},
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ProxyConfig: map[string]interface{}{
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// Add a custom sections with interpolated variables. These are all
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// invalid config syntax too but we are just testing they have the right
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// effect.
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"envoy_extra_static_clusters_json": `
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{
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"name": "fake_cluster_1"
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},
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{
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"name": "fake_cluster_2"
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}`,
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"envoy_extra_static_listeners_json": `
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{
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"name": "fake_listener_1"
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},{
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"name": "fake_listener_2"
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}`,
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"envoy_extra_stats_sinks_json": `
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{
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"name": "fake_sink_1"
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} , { "name": "fake_sink_2" }`,
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},
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WantArgs: BootstrapTplArgs{
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ProxyCluster: "test-proxy",
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ProxyID: "test-proxy",
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AgentAddress: "127.0.0.1",
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AgentPort: "8502",
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AdminAccessLogPath: "/dev/null",
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AdminBindAddress: "127.0.0.1",
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AdminBindPort: "19000",
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LocalAgentClusterName: xds.LocalAgentClusterName,
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},
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},
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{
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Name: "stats-config-override",
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Flags: []string{"-proxy-id", "test-proxy"},
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Env: []string{},
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ProxyConfig: map[string]interface{}{
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// Add a custom sections with interpolated variables. These are all
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// invalid config syntax too but we are just testing they have the right
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// effect.
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"envoy_stats_config_json": `
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{
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"name": "fake_config"
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}`,
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},
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WantArgs: BootstrapTplArgs{
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ProxyCluster: "test-proxy",
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ProxyID: "test-proxy",
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AgentAddress: "127.0.0.1",
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AgentPort: "8502",
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AdminAccessLogPath: "/dev/null",
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AdminBindAddress: "127.0.0.1",
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AdminBindPort: "19000",
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LocalAgentClusterName: xds.LocalAgentClusterName,
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},
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},
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{
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Name: "zipkin-tracing-config",
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Flags: []string{"-proxy-id", "test-proxy"},
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Env: []string{},
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ProxyConfig: map[string]interface{}{
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// Add a custom sections with interpolated variables. These are all
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// invalid config syntax too but we are just testing they have the right
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// effect.
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"envoy_tracing_json": `{
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"http": {
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"name": "envoy.zipkin",
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"config": {
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"collector_cluster": "zipkin",
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"collector_endpoint": "/api/v1/spans"
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}
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}
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}`,
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// Need to setup the cluster to send that too as well
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"envoy_extra_static_clusters_json": `{
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"name": "zipkin",
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"type": "STRICT_DNS",
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"connect_timeout": "5s",
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"load_assignment": {
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"cluster_name": "zipkin",
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"endpoints": [
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{
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"lb_endpoints": [
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{
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"endpoint": {
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"address": {
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"socket_address": {
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"address": "zipkin.service.consul",
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"port_value": 9411
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}
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}
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}
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}
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]
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}
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]
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}
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}`,
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},
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WantArgs: BootstrapTplArgs{
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ProxyCluster: "test-proxy",
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ProxyID: "test-proxy",
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AgentAddress: "127.0.0.1",
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AgentPort: "8502",
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AdminAccessLogPath: "/dev/null",
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AdminBindAddress: "127.0.0.1",
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AdminBindPort: "19000",
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LocalAgentClusterName: xds.LocalAgentClusterName,
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},
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},
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}
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copyAndReplaceAll := func(s []string, old, new string) []string {
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out := make([]string, len(s))
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for i, v := range s {
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out[i] = strings.ReplaceAll(v, old, new)
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}
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return out
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}
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for _, tc := range cases {
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t.Run(tc.Name, func(t *testing.T) {
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require := require.New(t)
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testDir := testutil.TempDir(t, "envoytest")
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defer os.RemoveAll(testDir)
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if len(tc.Files) > 0 {
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for fn, fv := range tc.Files {
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fullname := filepath.Join(testDir, fn)
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require.NoError(ioutil.WriteFile(fullname, []byte(fv), 0600))
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}
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}
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ui := cli.NewMockUi()
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c := New(ui)
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// Run a mock agent API that just always returns the proxy config in the
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// test.
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srv := httptest.NewServer(testMockAgent(tc.ProxyConfig, tc.GRPCPort))
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defer srv.Close()
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// Set the agent HTTP address in ENV to be our mock
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tc.Env = append(tc.Env, "CONSUL_HTTP_ADDR="+srv.URL)
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testDirPrefix := testDir + string(filepath.Separator)
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myFlags := copyAndReplaceAll(tc.Flags, "@@TEMPDIR@@", testDirPrefix)
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myEnv := copyAndReplaceAll(tc.Env, "@@TEMPDIR@@", testDirPrefix)
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defer testSetAndResetEnv(t, myEnv)()
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// Run the command
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args := append([]string{"-bootstrap"}, myFlags...)
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code := c.Run(args)
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if tc.WantErr == "" {
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require.Equal(0, code, ui.ErrorWriter.String())
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} else {
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require.Equal(1, code, ui.ErrorWriter.String())
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require.Contains(ui.ErrorWriter.String(), tc.WantErr)
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return
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}
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|
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// Verify we handled the env and flags right first to get correct template
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// args.
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got, err := c.templateArgs()
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require.NoError(err) // Error cases should have returned above
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require.Equal(&tc.WantArgs, got)
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// Actual template output goes to stdout direct to avoid prefix in UI, so
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// generate it again here to assert on.
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actual, err := c.generateConfig()
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require.NoError(err)
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// If we got the arg handling write, verify output
|
|
golden := filepath.Join("testdata", tc.Name+".golden")
|
|
if *update {
|
|
ioutil.WriteFile(golden, actual, 0644)
|
|
}
|
|
|
|
expected, err := ioutil.ReadFile(golden)
|
|
require.NoError(err)
|
|
require.Equal(string(expected), string(actual))
|
|
})
|
|
}
|
|
}
|
|
|
|
// testMockAgent combines testMockAgentProxyConfig and testMockAgentSelf,
|
|
// routing /agent/service/... requests to testMockAgentProxyConfig and
|
|
// routing /agent/self requests to testMockAgentSelf.
|
|
func testMockAgent(agentCfg map[string]interface{}, grpcPort int) http.HandlerFunc {
|
|
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
|
|
if strings.Contains(r.URL.Path, "/agent/service") {
|
|
testMockAgentProxyConfig(agentCfg)(w, r)
|
|
return
|
|
}
|
|
|
|
if strings.Contains(r.URL.Path, "/agent/self") {
|
|
testMockAgentSelf(grpcPort)(w, r)
|
|
return
|
|
}
|
|
|
|
http.NotFound(w, r)
|
|
})
|
|
}
|
|
|
|
func testMockAgentProxyConfig(cfg map[string]interface{}) http.HandlerFunc {
|
|
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
|
|
// Parse the proxy-id from the end of the URL (blindly assuming it's correct
|
|
// format)
|
|
proxyID := strings.TrimPrefix(r.URL.Path, "/v1/agent/service/")
|
|
serviceID := strings.TrimSuffix(proxyID, "-sidecar-proxy")
|
|
|
|
svc := api.AgentService{
|
|
Kind: api.ServiceKindConnectProxy,
|
|
ID: proxyID,
|
|
Service: proxyID,
|
|
Proxy: &api.AgentServiceConnectProxyConfig{
|
|
DestinationServiceName: serviceID,
|
|
DestinationServiceID: serviceID,
|
|
Config: cfg,
|
|
},
|
|
}
|
|
|
|
cfgJSON, err := json.Marshal(svc)
|
|
if err != nil {
|
|
w.WriteHeader(500)
|
|
w.Write([]byte(err.Error()))
|
|
return
|
|
}
|
|
w.Write(cfgJSON)
|
|
})
|
|
}
|
|
|
|
func TestEnvoyCommand_canBindInternal(t *testing.T) {
|
|
t.Parallel()
|
|
type testCheck struct {
|
|
expected bool
|
|
addr string
|
|
}
|
|
|
|
type testCase struct {
|
|
ifAddrs []net.Addr
|
|
checks map[string]testCheck
|
|
}
|
|
|
|
parseIPNets := func(t *testing.T, in ...string) []net.Addr {
|
|
var out []net.Addr
|
|
for _, addr := range in {
|
|
ip := net.ParseIP(addr)
|
|
require.NotNil(t, ip)
|
|
out = append(out, &net.IPNet{IP: ip})
|
|
}
|
|
return out
|
|
}
|
|
|
|
parseIPs := func(t *testing.T, in ...string) []net.Addr {
|
|
var out []net.Addr
|
|
for _, addr := range in {
|
|
ip := net.ParseIP(addr)
|
|
require.NotNil(t, ip)
|
|
out = append(out, &net.IPAddr{IP: ip})
|
|
}
|
|
return out
|
|
}
|
|
|
|
cases := map[string]testCase{
|
|
"IPNet": {
|
|
parseIPNets(t, "10.3.0.2", "198.18.0.1", "2001:db8:a0b:12f0::1"),
|
|
map[string]testCheck{
|
|
"ipv4": {
|
|
true,
|
|
"10.3.0.2",
|
|
},
|
|
"secondary ipv4": {
|
|
true,
|
|
"198.18.0.1",
|
|
},
|
|
"ipv6": {
|
|
true,
|
|
"2001:db8:a0b:12f0::1",
|
|
},
|
|
"ipv4 not found": {
|
|
false,
|
|
"1.2.3.4",
|
|
},
|
|
"ipv6 not found": {
|
|
false,
|
|
"::ffff:192.168.0.1",
|
|
},
|
|
},
|
|
},
|
|
"IPAddr": {
|
|
parseIPs(t, "10.3.0.2", "198.18.0.1", "2001:db8:a0b:12f0::1"),
|
|
map[string]testCheck{
|
|
"ipv4": {
|
|
true,
|
|
"10.3.0.2",
|
|
},
|
|
"secondary ipv4": {
|
|
true,
|
|
"198.18.0.1",
|
|
},
|
|
"ipv6": {
|
|
true,
|
|
"2001:db8:a0b:12f0::1",
|
|
},
|
|
"ipv4 not found": {
|
|
false,
|
|
"1.2.3.4",
|
|
},
|
|
"ipv6 not found": {
|
|
false,
|
|
"::ffff:192.168.0.1",
|
|
},
|
|
},
|
|
},
|
|
}
|
|
|
|
for name, tcase := range cases {
|
|
t.Run(name, func(t *testing.T) {
|
|
for checkName, check := range tcase.checks {
|
|
t.Run(checkName, func(t *testing.T) {
|
|
require.Equal(t, check.expected, canBindInternal(check.addr, tcase.ifAddrs))
|
|
})
|
|
}
|
|
})
|
|
}
|
|
}
|
|
|
|
// testMockAgentSelf returns an empty /v1/agent/self response except GRPC
|
|
// port is filled in to match the given wantGRPCPort argument.
|
|
func testMockAgentSelf(wantGRPCPort int) http.HandlerFunc {
|
|
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
|
|
resp := agent.Self{
|
|
DebugConfig: map[string]interface{}{
|
|
"GRPCPort": wantGRPCPort,
|
|
},
|
|
}
|
|
|
|
selfJSON, err := json.Marshal(resp)
|
|
if err != nil {
|
|
w.WriteHeader(500)
|
|
w.Write([]byte(err.Error()))
|
|
return
|
|
}
|
|
w.Write(selfJSON)
|
|
})
|
|
}
|