tesseract/internal/docker/docker.go

package docker

import (
	"context"
	"fmt"
	"github.com/docker/docker/api/types"
	"github.com/docker/go-connections/nat"
	"strconv"
	"strings"
)

// ContainerSSHHostPort returns the port on the host that is exposing the internal ssh port of the given container info
func ContainerSSHHostPort(ctx context.Context, container types.ContainerJSON) int {
	ports := container.NetworkSettings.Ports[nat.Port("22/tcp")]
	if len(ports) == 0 {
		return -1
	}
	port, err := strconv.Atoi(ports[0].HostPort)
	if err != nil {
		return -1
	}
	return port
}

// ContainerHostPort finds the host port that is exposing the given container port
func ContainerHostPort(ctx context.Context, container types.ContainerJSON, port int) int {
	ports := container.NetworkSettings.Ports[nat.Port(fmt.Sprintf("%d/tcp", port))]
	if len(ports) == 0 {
		return -1
	}
	port, err := strconv.Atoi(ports[0].HostPort)
	if err != nil {
		return -1
	}
	return port
}

// CleanErrorMessage removes unnecessary parts in a docker sdk error message, such as "Error response from daemon:"
func CleanErrorMessage(msg string) string {
	return strings.Replace(msg, "Error response from daemon: ", "", 1)
}