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Merge branch 'master' into feature/144
Signed-off-by: Javier Romero <j.romero.1214@gmail.com>
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| @@ -0,0 +1,2 @@ | ||
| FROM hashicorp/http-echo | ||
| CMD ["-text=\"hello world\""] |
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,8 @@ | ||
| package app | ||
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| import "github.com/buildpack/pack/logging" | ||
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| type Image struct { | ||
| RepoName string | ||
| Logger *logging.Logger | ||
| } |
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,98 @@ | ||
| package app | ||
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| import ( | ||
| "context" | ||
| "fmt" | ||
| "strconv" | ||
| "strings" | ||
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| "github.com/docker/docker/api/types" | ||
| dcontainer "github.com/docker/docker/api/types/container" | ||
| "github.com/docker/docker/client" | ||
| "github.com/docker/go-connections/nat" | ||
| "github.com/pkg/errors" | ||
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| "github.com/buildpack/pack/container" | ||
| "github.com/buildpack/pack/logging" | ||
| ) | ||
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| func (i *Image) Run(ctx context.Context, docker *client.Client, ports []string) error { | ||
| if ports == nil { | ||
| var err error | ||
| ports, err = exposedPorts(ctx, docker, i.RepoName) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| } | ||
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| parsedPorts, portBindings, err := parsePorts(ports) | ||
| if err != nil { | ||
| return err | ||
| } | ||
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| ctr, err := docker.ContainerCreate(ctx, &dcontainer.Config{ | ||
| Image: i.RepoName, | ||
| AttachStdout: true, | ||
| AttachStderr: true, | ||
| ExposedPorts: parsedPorts, | ||
| Labels: map[string]string{"author": "pack"}, | ||
| }, &dcontainer.HostConfig{ | ||
| AutoRemove: true, | ||
| PortBindings: portBindings, | ||
| }, nil, "") | ||
| if err != nil { | ||
| return err | ||
| } | ||
| defer docker.ContainerRemove(context.Background(), ctr.ID, types.ContainerRemoveOptions{Force: true}) | ||
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| logContainerListening(i.Logger, portBindings) | ||
| if err = container.Run(ctx, docker, ctr.ID, i.Logger.VerboseWriter(), i.Logger.VerboseErrorWriter()); err != nil { | ||
| return errors.Wrap(err, "run container") | ||
| } | ||
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| return nil | ||
| } | ||
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| func exposedPorts(ctx context.Context, docker *client.Client, imageID string) ([]string, error) { | ||
| i, _, err := docker.ImageInspectWithRaw(ctx, imageID) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| var ports []string | ||
| for port := range i.Config.ExposedPorts { | ||
| ports = append(ports, port.Port()) | ||
| } | ||
| return ports, nil | ||
| } | ||
|
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| func parsePorts(ports []string) (nat.PortSet, nat.PortMap, error) { | ||
| for i, p := range ports { | ||
| p = strings.TrimSpace(p) | ||
| if _, err := strconv.Atoi(p); err == nil { | ||
| // default simple port to localhost and inside the container | ||
| p = fmt.Sprintf("127.0.0.1:%s:%s/tcp", p, p) | ||
| } | ||
| ports[i] = p | ||
| } | ||
|
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| return nat.ParsePortSpecs(ports) | ||
| } | ||
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| func logContainerListening(logger *logging.Logger, portBindings nat.PortMap) { | ||
| // TODO handle case with multiple ports, for now when there is more than | ||
| // one port we assume you know what you're doing and don't need guidance | ||
| if len(portBindings) == 1 { | ||
| for _, bindings := range portBindings { | ||
| if len(bindings) == 1 { | ||
| binding := bindings[0] | ||
| host := binding.HostIP | ||
| port := binding.HostPort | ||
| if host == "127.0.0.1" { | ||
| host = "localhost" | ||
| } | ||
| // TODO the service may not be http based | ||
| logger.Info("Starting container listening at http://%s:%s/\n", host, port) | ||
| } | ||
| } | ||
| } | ||
| } |
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