func (srv *Server) RegisterLinks(name string, hostConfig *HostConfig) error {
runtime := srv.runtime
container := runtime.Get(name)
if container == nil {
return fmt.Errorf("No such container: %s", name)
}
if hostConfig != nil && hostConfig.Links != nil {
for _, l := range hostConfig.Links {
parts, err := parseLink(l)
if err != nil {
return err
}
child, err := srv.runtime.GetByName(parts["name"])
if err != nil {
return err
}
if child == nil {
return fmt.Errorf("Could not get container for %s", parts["name"])
}
if err := runtime.RegisterLink(container, child, parts["alias"]); err != nil {
return err
}
}
// After we load all the links into the runtime
// set them to nil on the hostconfig
hostConfig.Links = nil
if err := container.writeHostConfig(); err != nil {
return err
}
}
return nil
}
func TestGetAllChildren(t *testing.T) {
eng := NewTestEngine(t)
srv := mkServerFromEngine(eng, t)
runtime := srv.runtime
defer nuke(runtime)
config, _, _, err := ParseRun([]string{GetTestImage(runtime).ID, "echo test"}, nil)
if err != nil {
t.Fatal(err)
}
container := runtime.Get(createNamedTestContainer(eng, config, t, "/webapp"))
webapp, err := runtime.GetByName("/webapp")
if err != nil {
t.Fatal(err)
}
if webapp.ID != container.ID {
t.Fatalf("Expect webapp id to match container id: %s != %s", webapp.ID, container.ID)
}
config, _, _, err = ParseRun([]string{GetTestImage(runtime).ID, "echo test"}, nil)
if err != nil {
t.Fatal(err)
}
childContainer := runtime.Get(createTestContainer(eng, config, t))
if err := runtime.RegisterLink(webapp, childContainer, "db"); err != nil {
t.Fatal(err)
}
children, err := runtime.Children("/webapp")
if err != nil {
t.Fatal(err)
}
if children == nil {
t.Fatal("Children should not be nil")
}
if len(children) == 0 {
t.Fatal("Children should not be empty")
}
for key, value := range children {
if key != "/webapp/db" {
t.Fatalf("Expected /webapp/db got %s", key)
}
if value.ID != childContainer.ID {
t.Fatalf("Expected id %s got %s", childContainer.ID, value.ID)
}
}
}
func TestLinkChildContainer(t *testing.T) {
runtime := mkRuntime(t)
defer nuke(runtime)
srv := &Server{runtime: runtime}
config, _, _, err := ParseRun([]string{GetTestImage(runtime).ID, "echo test"}, nil)
if err != nil {
t.Fatal(err)
}
shortId, _, err := srv.ContainerCreate(config, "/webapp")
if err != nil {
t.Fatal(err)
}
container := runtime.Get(shortId)
webapp, err := runtime.GetByName("/webapp")
if err != nil {
t.Fatal(err)
}
if webapp.ID != container.ID {
t.Fatalf("Expect webapp id to match container id: %s != %s", webapp.ID, container.ID)
}
config, _, _, err = ParseRun([]string{GetTestImage(runtime).ID, "echo test"}, nil)
if err != nil {
t.Fatal(err)
}
shortId, _, err = srv.ContainerCreate(config, "")
if err != nil {
t.Fatal(err)
}
childContainer := runtime.Get(shortId)
if err := runtime.RegisterLink(webapp, childContainer, "db"); err != nil {
t.Fatal(err)
}
// Get the child by it's new name
db, err := runtime.GetByName("/webapp/db")
if err != nil {
t.Fatal(err)
}
if db.ID != childContainer.ID {
t.Fatalf("Expect db id to match container id: %s != %s", db.ID, childContainer.ID)
}
}
func TestLinkChildContainer(t *testing.T) {
eng := NewTestEngine(t)
srv := mkServerFromEngine(eng, t)
runtime := srv.runtime
defer nuke(runtime)
config, _, _, err := ParseRun([]string{GetTestImage(runtime).ID, "echo test"}, nil)
if err != nil {
t.Fatal(err)
}
container := runtime.Get(createNamedTestContainer(eng, config, t, "/webapp"))
webapp, err := runtime.GetByName("/webapp")
if err != nil {
t.Fatal(err)
}
if webapp.ID != container.ID {
t.Fatalf("Expect webapp id to match container id: %s != %s", webapp.ID, container.ID)
}
config, _, _, err = ParseRun([]string{GetTestImage(runtime).ID, "echo test"}, nil)
if err != nil {
t.Fatal(err)
}
childContainer := runtime.Get(createTestContainer(eng, config, t))
if err := runtime.RegisterLink(webapp, childContainer, "db"); err != nil {
t.Fatal(err)
}
// Get the child by it's new name
db, err := runtime.GetByName("/webapp/db")
if err != nil {
t.Fatal(err)
}
if db.ID != childContainer.ID {
t.Fatalf("Expect db id to match container id: %s != %s", db.ID, childContainer.ID)
}
}
func TestGetAllChildren(t *testing.T) {
runtime := mkRuntime(t)
defer nuke(runtime)
srv := &Server{runtime: runtime}
config, _, _, err := ParseRun([]string{GetTestImage(runtime).ID, "echo test"}, nil)
if err != nil {
t.Fatal(err)
}
shortId, _, err := srv.ContainerCreate(config, "/webapp")
if err != nil {
t.Fatal(err)
}
container := runtime.Get(shortId)
webapp, err := runtime.GetByName("/webapp")
if err != nil {
t.Fatal(err)
}
if webapp.ID != container.ID {
t.Fatalf("Expect webapp id to match container id: %s != %s", webapp.ID, container.ID)
}
config, _, _, err = ParseRun([]string{GetTestImage(runtime).ID, "echo test"}, nil)
if err != nil {
t.Fatal(err)
}
shortId, _, err = srv.ContainerCreate(config, "")
if err != nil {
t.Fatal(err)
}
childContainer := runtime.Get(shortId)
if err := runtime.RegisterLink(webapp, childContainer, "db"); err != nil {
t.Fatal(err)
}
children, err := runtime.Children("/webapp")
if err != nil {
t.Fatal(err)
}
if children == nil {
t.Fatal("Children should not be nil")
}
if len(children) == 0 {
t.Fatal("Children should not be empty")
}
for key, value := range children {
if key != "/webapp/db" {
t.Fatalf("Expected /webapp/db got %s", key)
}
if value.ID != childContainer.ID {
t.Fatalf("Expected id %s got %s", childContainer.ID, value.ID)
}
}
}