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Merge pull request #14822 from runcom/host-config-links-on-start

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Allow starting a container with an existing hostConfig which contains links
This commit is contained in:
Jessie Frazelle 2015-07-21 20:06:26 -07:00
commit 06162fed8b
3 changed files with 53 additions and 1 deletions
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1
daemon/daemon_unix.go
View file

@ -487,7 +487,6 @@ func (daemon *Daemon) NetworkApiRouter() func(w http.ResponseWriter, req *http.R
}
func (daemon *Daemon) RegisterLinks(container *Container, hostConfig *runconfig.HostConfig) error {
if hostConfig == nil || hostConfig.Links == nil {
return nil
}

45
integration-cli/docker_api_containers_test.go
View file

@ -1640,3 +1640,48 @@ func (s *DockerSuite) TestPostContainersCreateWithStringOrSliceCapAddDrop(c *che
c.Assert(err, check.IsNil)
c.Assert(status, check.Equals, http.StatusCreated)
}
// #14640
func (s *DockerSuite) TestPostContainersStartWithoutLinksInHostConfig(c *check.C) {
name := "test-host-config-links"
dockerCmd(c, "create", "--name", name, "busybox", "top")
hc, err := inspectFieldJSON(name, "HostConfig")
c.Assert(err, check.IsNil)
config := `{"HostConfig":` + hc + `}`
res, _, err := sockRequestRaw("POST", "/containers/"+name+"/start", strings.NewReader(config), "application/json")
c.Assert(err, check.IsNil)
c.Assert(res.StatusCode, check.Equals, http.StatusNoContent)
}
// #14640
func (s *DockerSuite) TestPostContainersStartWithLinksInHostConfig(c *check.C) {
name := "test-host-config-links"
dockerCmd(c, "run", "--name", "foo", "-d", "busybox", "top")
dockerCmd(c, "create", "--name", name, "--link", "foo:bar", "busybox", "top")
hc, err := inspectFieldJSON(name, "HostConfig")
c.Assert(err, check.IsNil)
config := `{"HostConfig":` + hc + `}`
res, _, err := sockRequestRaw("POST", "/containers/"+name+"/start", strings.NewReader(config), "application/json")
c.Assert(err, check.IsNil)
c.Assert(res.StatusCode, check.Equals, http.StatusNoContent)
}
// #14640
func (s *DockerSuite) TestPostContainersStartWithLinksInHostConfigIdLinked(c *check.C) {
name := "test-host-config-links"
out, _ := dockerCmd(c, "run", "--name", "link0", "-d", "busybox", "top")
id := strings.TrimSpace(out)
dockerCmd(c, "create", "--name", name, "--link", id, "busybox", "top")
hc, err := inspectFieldJSON(name, "HostConfig")
c.Assert(err, check.IsNil)
config := `{"HostConfig":` + hc + `}`
res, _, err := sockRequestRaw("POST", "/containers/"+name+"/start", strings.NewReader(config), "application/json")
c.Assert(err, check.IsNil)
c.Assert(res.StatusCode, check.Equals, http.StatusNoContent)
}

8
pkg/parsers/parsers.go
View file

@ -3,6 +3,7 @@ package parsers
import (
"fmt"
"net/url"
"path"
"runtime"
"strconv"
"strings"
@ -158,5 +159,12 @@ func ParseLink(val string) (string, string, error) {
if len(arr) == 1 {
return val, val, nil
}
// This is kept because we can actually get an HostConfig with links
// from an already created container and the format is not `foo:bar`
// but `/foo:/c1/bar`
if strings.HasPrefix(arr[0], "/") {
_, alias := path.Split(arr[1])
return arr[0][1:], alias, nil
}
return arr[0], arr[1], nil
}