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package runconfig // import "github.com/docker/docker/runconfig"
import (
"bytes"
"encoding/json"
"fmt"
"os"
"runtime"
"strings"
"testing"
"github.com/docker/docker/api/types/container"
networktypes "github.com/docker/docker/api/types/network"
"github.com/docker/docker/api/types/strslice"
"github.com/docker/docker/pkg/sysinfo"
)
type f struct {
file string
entrypoint strslice.StrSlice
}
func TestDecodeContainerConfig(t *testing.T) {
var (
fixtures []f
image string
)
if runtime.GOOS != "windows" {
image = "ubuntu"
fixtures = []f{
{"fixtures/unix/container_config_1_14.json", strslice.StrSlice{}},
{"fixtures/unix/container_config_1_17.json", strslice.StrSlice{"bash"}},
{"fixtures/unix/container_config_1_19.json", strslice.StrSlice{"bash"}},
}
} else {
image = "windows"
fixtures = []f{
{"fixtures/windows/container_config_1_19.json", strslice.StrSlice{"cmd"}},
}
}
for _, f := range fixtures {
f := f
t.Run(f.file, func(t *testing.T) {
b, err := os.ReadFile(f.file)
if err != nil {
t.Fatal(err)
}
c, h, _, err := decodeContainerConfig(bytes.NewReader(b), sysinfo.New())
if err != nil {
t.Fatal(err)
}
if c.Image != image {
t.Fatalf("Expected %s image, found %s", image, c.Image)
}
if len(c.Entrypoint) != len(f.entrypoint) {
t.Fatalf("Expected %v, found %v", f.entrypoint, c.Entrypoint)
}
if h != nil && h.Memory != 1000 {
t.Fatalf("Expected memory to be 1000, found %d", h.Memory)
}
})
}
}
// TestDecodeContainerConfigIsolation validates isolation passed
// to the daemon in the hostConfig structure. Note this is platform specific
// as to what level of container isolation is supported.
func TestDecodeContainerConfigIsolation(t *testing.T) {
// An Invalid isolation level
if _, _, _, err := callDecodeContainerConfigIsolation("invalid"); err != nil {
if !strings.Contains(err.Error(), `Invalid isolation: "invalid"`) {
t.Fatal(err)
}
}
// Blank isolation (== default)
if _, _, _, err := callDecodeContainerConfigIsolation(""); err != nil {
t.Fatal("Blank isolation should have succeeded")
}
// Default isolation
if _, _, _, err := callDecodeContainerConfigIsolation("default"); err != nil {
t.Fatal("default isolation should have succeeded")
}
// Process isolation (Valid on Windows only)
if runtime.GOOS == "windows" {
if _, _, _, err := callDecodeContainerConfigIsolation("process"); err != nil {
t.Fatal("process isolation should have succeeded")
}
} else {
if _, _, _, err := callDecodeContainerConfigIsolation("process"); err != nil {
if !strings.Contains(err.Error(), `Invalid isolation: "process"`) {
t.Fatal(err)
}
}
}
// Hyper-V Containers isolation (Valid on Windows only)
if runtime.GOOS == "windows" {
if _, _, _, err := callDecodeContainerConfigIsolation("hyperv"); err != nil {
t.Fatal("hyperv isolation should have succeeded")
}
} else {
if _, _, _, err := callDecodeContainerConfigIsolation("hyperv"); err != nil {
if !strings.Contains(err.Error(), `Invalid isolation: "hyperv"`) {
t.Fatal(err)
}
}
}
}
// callDecodeContainerConfigIsolation is a utility function to call
// DecodeContainerConfig for validating isolation
func callDecodeContainerConfigIsolation(isolation string) (*container.Config, *container.HostConfig, *networktypes.NetworkingConfig, error) {
var (
b []byte
err error
)
w := ContainerConfigWrapper{
Config: &container.Config{},
HostConfig: &container.HostConfig{
NetworkMode: "none",
Isolation: container.Isolation(isolation)},
}
if b, err = json.Marshal(w); err != nil {
return nil, nil, nil, fmt.Errorf("Error on marshal %s", err.Error())
}
return decodeContainerConfig(bytes.NewReader(b), sysinfo.New())
}
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