mirror of https://github.com/hashicorp/consul
293 lines
8.0 KiB
Go
293 lines
8.0 KiB
Go
// Copyright (c) HashiCorp, Inc.
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// SPDX-License-Identifier: MPL-2.0
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package service
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import (
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"context"
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"errors"
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"fmt"
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"io"
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"path/filepath"
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"strconv"
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"strings"
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"time"
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"github.com/testcontainers/testcontainers-go"
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"github.com/testcontainers/testcontainers-go/wait"
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"github.com/hashicorp/consul/api"
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"github.com/hashicorp/consul/test/integration/consul-container/libs/cluster"
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"github.com/hashicorp/consul/test/integration/consul-container/libs/utils"
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)
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// ConnectContainer
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type ConnectContainer struct {
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ctx context.Context
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container testcontainers.Container
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ip string
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appPort []int
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externalAdminPort int
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internalAdminPort int
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mappedPublicPort int
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serviceName string
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}
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var _ Service = (*ConnectContainer)(nil)
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func (g ConnectContainer) Exec(ctx context.Context, cmd []string) (string, error) {
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exitCode, reader, err := g.container.Exec(ctx, cmd)
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if err != nil {
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return "", fmt.Errorf("exec with error %s", err)
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}
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if exitCode != 0 {
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return "", fmt.Errorf("exec with exit code %d", exitCode)
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}
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buf, err := io.ReadAll(reader)
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if err != nil {
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return "", fmt.Errorf("error reading from exec output: %w", err)
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}
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return string(buf), nil
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}
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func (g ConnectContainer) Export(partition, peer string, client *api.Client) error {
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return fmt.Errorf("ConnectContainer export unimplemented")
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}
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func (g ConnectContainer) GetAddr() (string, int) {
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return g.ip, g.appPort[0]
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}
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func (g ConnectContainer) GetAddrs() (string, []int) {
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return g.ip, g.appPort
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}
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func (g ConnectContainer) GetPort(port int) (int, error) {
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return 0, errors.New("not implemented")
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}
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func (g ConnectContainer) Restart() error {
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_, err := g.GetStatus()
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if err != nil {
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return fmt.Errorf("error fetching sidecar container state %s", err)
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}
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fmt.Printf("Stopping container: %s\n", g.GetName())
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err = g.container.Stop(g.ctx, nil)
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if err != nil {
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return fmt.Errorf("error stopping sidecar container %s", err)
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}
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fmt.Printf("Starting container: %s\n", g.GetName())
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err = g.container.Start(g.ctx)
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if err != nil {
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return fmt.Errorf("error starting sidecar container %s", err)
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}
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return nil
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}
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func (g ConnectContainer) GetLogs() (string, error) {
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rc, err := g.container.Logs(context.Background())
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if err != nil {
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return "", fmt.Errorf("could not get logs for connect service %s: %w", g.GetServiceName(), err)
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}
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defer rc.Close()
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out, err := io.ReadAll(rc)
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if err != nil {
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return "", fmt.Errorf("could not read from logs for connect service %s: %w", g.GetServiceName(), err)
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}
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return string(out), nil
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}
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func (g ConnectContainer) GetName() string {
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name, err := g.container.Name(g.ctx)
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if err != nil {
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return ""
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}
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return name
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}
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func (g ConnectContainer) GetServiceName() string {
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return g.serviceName
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}
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func (g ConnectContainer) Start() error {
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if g.container == nil {
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return fmt.Errorf("container has not been initialized")
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}
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return g.container.Start(g.ctx)
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}
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func (g ConnectContainer) Stop() error {
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if g.container == nil {
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return fmt.Errorf("container has not been initialized")
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}
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return g.container.Stop(context.Background(), nil)
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}
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func (g ConnectContainer) Terminate() error {
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return cluster.TerminateContainer(g.ctx, g.container, true)
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}
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func (g ConnectContainer) GetInternalAdminAddr() (string, int) {
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return "localhost", g.internalAdminPort
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}
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// GetAdminAddr returns the external admin port
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func (g ConnectContainer) GetAdminAddr() (string, int) {
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return "localhost", g.externalAdminPort
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}
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func (g ConnectContainer) GetStatus() (string, error) {
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state, err := g.container.State(g.ctx)
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return state.Status, err
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}
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type SidecarConfig struct {
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Name string
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ServiceID string
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Namespace string
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EnableTProxy bool
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}
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// NewConnectService returns a container that runs envoy sidecar, launched by
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// "consul connect envoy", for service name (serviceName) on the specified
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// node. The container exposes port serviceBindPort and envoy admin port
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// (19000) by mapping them onto host ports. The container's name has a prefix
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// combining datacenter and name.
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func NewConnectService(ctx context.Context, sidecarCfg SidecarConfig, serviceBindPorts []int, node cluster.Agent) (*ConnectContainer, error) {
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nodeConfig := node.GetConfig()
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if nodeConfig.ScratchDir == "" {
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return nil, fmt.Errorf("node ScratchDir is required")
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}
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namePrefix := fmt.Sprintf("%s-service-connect-%s", node.GetDatacenter(), sidecarCfg.Name)
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containerName := utils.RandName(namePrefix)
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internalAdminPort, err := node.ClaimAdminPort()
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if err != nil {
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return nil, err
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}
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fmt.Println("agent image name", nodeConfig.DockerImage())
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imageVersion := utils.SideCarVersion(nodeConfig.DockerImage())
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req := testcontainers.ContainerRequest{
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Image: fmt.Sprintf("consul-envoy:%s", imageVersion),
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WaitingFor: wait.ForLog("").WithStartupTimeout(100 * time.Second),
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AutoRemove: false,
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Name: containerName,
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Cmd: []string{
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"consul", "connect", "envoy",
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"-sidecar-for", sidecarCfg.ServiceID,
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"-admin-bind", fmt.Sprintf("0.0.0.0:%d", internalAdminPort),
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"-namespace", sidecarCfg.Namespace,
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"--",
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"--log-level", envoyLogLevel,
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},
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Env: make(map[string]string),
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}
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if sidecarCfg.EnableTProxy {
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req.Entrypoint = []string{"/bin/tproxy-startup.sh"}
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req.Env["REDIRECT_TRAFFIC_ARGS"] = strings.Join(
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[]string{
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"-exclude-inbound-port", fmt.Sprint(internalAdminPort),
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"-exclude-inbound-port", "8300",
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"-exclude-inbound-port", "8301",
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"-exclude-inbound-port", "8302",
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"-exclude-inbound-port", "8500",
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"-exclude-inbound-port", "8502",
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"-exclude-inbound-port", "8600",
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"-consul-dns-ip", "127.0.0.1",
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"-consul-dns-port", "8600",
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"-proxy-id", fmt.Sprintf("%s-sidecar-proxy", sidecarCfg.ServiceID),
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},
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" ",
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)
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req.CapAdd = append(req.CapAdd, "NET_ADMIN")
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}
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nodeInfo := node.GetInfo()
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if nodeInfo.UseTLSForAPI || nodeInfo.UseTLSForGRPC {
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req.Mounts = append(req.Mounts, testcontainers.ContainerMount{
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Source: testcontainers.DockerBindMountSource{
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// See cluster.NewConsulContainer for this info
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HostPath: filepath.Join(nodeConfig.ScratchDir, "ca.pem"),
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},
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Target: "/ca.pem",
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ReadOnly: true,
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})
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}
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if nodeInfo.UseTLSForAPI {
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req.Env["CONSUL_HTTP_ADDR"] = fmt.Sprintf("https://127.0.0.1:%d", 8501)
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req.Env["CONSUL_HTTP_SSL"] = "1"
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req.Env["CONSUL_CACERT"] = "/ca.pem"
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} else {
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req.Env["CONSUL_HTTP_ADDR"] = fmt.Sprintf("http://127.0.0.1:%d", 8500)
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}
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if nodeInfo.UseTLSForGRPC {
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req.Env["CONSUL_GRPC_ADDR"] = fmt.Sprintf("https://127.0.0.1:%d", 8503)
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req.Env["CONSUL_GRPC_CACERT"] = "/ca.pem"
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} else {
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req.Env["CONSUL_GRPC_ADDR"] = fmt.Sprintf("http://127.0.0.1:%d", 8502)
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}
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if nodeConfig.ACLEnabled {
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client := node.GetClient()
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token, _, err := client.ACL().TokenCreate(&api.ACLToken{
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ServiceIdentities: []*api.ACLServiceIdentity{
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{ServiceName: sidecarCfg.ServiceID},
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},
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}, nil)
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if err != nil {
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return nil, err
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}
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req.Env["CONSUL_HTTP_TOKEN"] = token.SecretID
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}
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var (
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appPortStrs []string
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adminPortStr = strconv.Itoa(internalAdminPort)
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)
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for _, port := range serviceBindPorts {
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appPortStrs = append(appPortStrs, strconv.Itoa(port))
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}
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// expose the app ports and the envoy adminPortStr on the agent container
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exposedPorts := make([]string, len(appPortStrs))
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copy(exposedPorts, appPortStrs)
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exposedPorts = append(exposedPorts, adminPortStr)
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info, err := cluster.LaunchContainerOnNode(ctx, node, req, exposedPorts)
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if err != nil {
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return nil, err
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}
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out := &ConnectContainer{
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ctx: ctx,
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container: info.Container,
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ip: info.IP,
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externalAdminPort: info.MappedPorts[adminPortStr].Int(),
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internalAdminPort: internalAdminPort,
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serviceName: sidecarCfg.Name,
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}
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for _, port := range appPortStrs {
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out.appPort = append(out.appPort, info.MappedPorts[port].Int())
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}
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fmt.Printf("NewConnectService: name %s, mapped App Port %d, service bind port %v\n",
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sidecarCfg.ServiceID, out.appPort, serviceBindPorts)
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fmt.Printf("NewConnectService sidecar: name %s, mapped admin port %d, admin port %d\n",
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sidecarCfg.Name, out.externalAdminPort, internalAdminPort)
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return out, nil
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}
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