mirror of https://github.com/status-im/consul.git
143 lines
3.8 KiB
Go
143 lines
3.8 KiB
Go
// Copyright (c) HashiCorp, Inc.
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// SPDX-License-Identifier: BUSL-1.1
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package cluster
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import (
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"context"
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"fmt"
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"time"
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dockercontainer "github.com/docker/docker/api/types/container"
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"github.com/docker/go-connections/nat"
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"github.com/hashicorp/go-multierror"
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"github.com/testcontainers/testcontainers-go"
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"github.com/hashicorp/consul/test/integration/consul-container/libs/utils"
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)
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// LaunchInfo is the resutl of LaunchContainerOnNode.
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type LaunchInfo struct {
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Container testcontainers.Container
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IP string
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MappedPorts map[string]nat.Port
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}
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// LaunchContainerOnNode will run a new container attached to the same network
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// namespace as the provided agent, in the same manner in Kubernetes where
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// you'd run two containers in the same pod so you can share localhost.
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//
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// This is supposed to mimic more accurately how consul/CLI/envoy/etc all are
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// co-located on localhost with the consul client agent in typical deployment
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// topologies.
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func LaunchContainerOnNode(
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ctx context.Context,
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node Agent,
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req testcontainers.ContainerRequest,
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mapPorts []string,
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) (*LaunchInfo, error) {
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if req.Name == "" {
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return nil, fmt.Errorf("ContainerRequest requires the Name field")
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}
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if req.NetworkMode != "" {
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return nil, fmt.Errorf("caller should not configure ContainerRequest.NetworkMode")
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}
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req.NetworkMode = dockercontainer.NetworkMode("container:" + node.GetName() + "-pod")
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pod := node.GetPod()
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if pod == nil {
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return nil, fmt.Errorf("node Pod is required")
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}
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// Do some trickery to ensure that partial completion is correctly torn
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// down, but successful execution is not.
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var deferClean utils.ResettableDefer
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defer deferClean.Execute()
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launchCtx, cancel := context.WithTimeout(ctx, time.Second*40)
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defer cancel()
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container, err := testcontainers.GenericContainer(launchCtx, testcontainers.GenericContainerRequest{
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ContainerRequest: req,
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Started: true,
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})
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fmt.Printf("creating container with image: %s(%s)\n", req.Name, req.Image)
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if err != nil {
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return nil, fmt.Errorf("creating container: %s(%s), %w", req.Name, req.Image, err)
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}
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deferClean.Add(func() {
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_ = container.Terminate(ctx)
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})
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ip, err := container.ContainerIP(ctx)
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if err != nil {
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return nil, fmt.Errorf("fetching container IP: %w", err)
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}
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if utils.FollowLog {
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if err := container.StartLogProducer(ctx); err != nil {
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return nil, fmt.Errorf("starting log producer: %w", err)
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}
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container.FollowOutput(&LogConsumer{
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Prefix: req.Name,
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})
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deferClean.Add(func() {
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_ = container.StopLogProducer()
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})
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}
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ports := make(map[string]nat.Port)
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for _, portStr := range mapPorts {
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mapped, err := pod.MappedPort(ctx, nat.Port(portStr))
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if err != nil {
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return nil, fmt.Errorf("mapping port %s: %w", portStr, err)
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}
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ports[portStr] = mapped
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}
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info := &LaunchInfo{
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Container: container,
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IP: ip,
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MappedPorts: ports,
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}
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node.RegisterTermination(func() error {
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return TerminateContainer(ctx, container, true)
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})
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// disable cleanup functions now that we have an object with a Terminate() function
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deferClean.Reset()
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return info, nil
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}
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// TerminateContainer attempts to terminate the container. On failure, an error
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// will be returned and the reaper process (RYUK) will handle cleanup.
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func TerminateContainer(ctx context.Context, c testcontainers.Container, stopLogs bool) error {
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if c == nil {
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return nil
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}
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var merr error
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if utils.FollowLog && stopLogs {
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if state, err := c.State(ctx); err == nil && state.Running {
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// StopLogProducer can only be called on running containers
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if err := c.StopLogProducer(); err != nil {
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merr = multierror.Append(merr, err)
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}
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}
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}
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if err := c.Stop(ctx, nil); err != nil {
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merr = multierror.Append(merr, err)
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}
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if err := c.Terminate(ctx); err != nil {
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merr = multierror.Append(merr, err)
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}
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return merr
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}
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