Matthias Radestock
8960a3a898
Conflicts: proxy/create_exec_interceptor.go test/600_proxy_docker_py_test.sh
53 lines
1.2 KiB
Go
53 lines
1.2 KiB
Go
package proxy
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import (
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"bytes"
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"encoding/json"
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"io/ioutil"
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"net/http"
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"strings"
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"github.com/fsouza/go-dockerclient"
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. "github.com/weaveworks/weave/common"
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)
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type createExecInterceptor struct{ proxy *Proxy }
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func (i *createExecInterceptor) InterceptRequest(r *http.Request) error {
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body, err := ioutil.ReadAll(r.Body)
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if err != nil {
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return err
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}
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r.Body.Close()
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r.Body = ioutil.NopCloser(bytes.NewReader(body))
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options := docker.CreateExecOptions{}
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if err := json.Unmarshal(body, &options); err != nil {
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return err
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}
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container, err := inspectContainerInPath(i.proxy.client, r.URL.Path)
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if err != nil {
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return err
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}
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if _, hasWeaveWait := container.Volumes["/w"]; !hasWeaveWait {
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return nil
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}
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cidrs, err := i.proxy.weaveCIDRsFromConfig(container.Config, container.HostConfig)
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if err != nil {
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Log.Infof("Leaving container %s alone because %s", container.ID, err)
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return nil
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}
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Log.Infof("Exec in container %s with WEAVE_CIDR \"%s\"", container.ID, strings.Join(cidrs, " "))
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options.Cmd = append(weaveWaitEntrypoint, options.Cmd...)
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return marshalRequestBody(r, options)
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}
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func (i *createExecInterceptor) InterceptResponse(r *http.Response) error {
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return nil
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}
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