Signed-off-by: TomSweeneyRedHat <tsweeney@redhat.com> Vendors in fsouza/docker-client, docker/docker and a few more related. Of particular note, changes to the TweakCapabilities() function from docker/docker along with the parse.IDMappingOptions() function from Buildah. Please pay particular attention to the related changes in the call from libpod to those functions during the review. Passes baseline tests.
go-dockerclient
This package presents a client for the Docker remote API. It also provides support for the extensions in the Swarm API.
This package also provides support for docker's network API, which is a simple passthrough to the libnetwork remote API. Note that docker's network API is only available in docker 1.8 and above, and only enabled in docker if DOCKER_EXPERIMENTAL is defined during the docker build process.
For more details, check the remote API documentation.
Example
package main
import (
"fmt"
"github.com/fsouza/go-dockerclient"
)
func main() {
endpoint := "unix:///var/run/docker.sock"
client, err := docker.NewClient(endpoint)
if err != nil {
panic(err)
}
imgs, err := client.ListImages(docker.ListImagesOptions{All: false})
if err != nil {
panic(err)
}
for _, img := range imgs {
fmt.Println("ID: ", img.ID)
fmt.Println("RepoTags: ", img.RepoTags)
fmt.Println("Created: ", img.Created)
fmt.Println("Size: ", img.Size)
fmt.Println("VirtualSize: ", img.VirtualSize)
fmt.Println("ParentId: ", img.ParentID)
}
}
Using with TLS
In order to instantiate the client for a TLS-enabled daemon, you should use NewTLSClient, passing the endpoint and path for key and certificates as parameters.
package main
import (
"fmt"
"github.com/fsouza/go-dockerclient"
)
func main() {
endpoint := "tcp://[ip]:[port]"
path := os.Getenv("DOCKER_CERT_PATH")
ca := fmt.Sprintf("%s/ca.pem", path)
cert := fmt.Sprintf("%s/cert.pem", path)
key := fmt.Sprintf("%s/key.pem", path)
client, _ := docker.NewTLSClient(endpoint, cert, key, ca)
// use client
}
If using docker-machine, or another
application that exports environment variables DOCKER_HOST,
DOCKER_TLS_VERIFY, DOCKER_CERT_PATH, you can use NewClientFromEnv.
package main
import (
"fmt"
"github.com/fsouza/go-dockerclient"
)
func main() {
client, _ := docker.NewClientFromEnv()
// use client
}
See the documentation for more details.
Developing
All development commands can be seen in the Makefile.
Commited code must pass:
Running make test will check all of these. If your editor does not
automatically call gofmt -s, make fmt will format all go files in this
repository.
Vendoring
go-dockerclient uses dep for vendoring. If you're using dep, you should be able to pick go-dockerclient releases and get the proper dependencies.
With other vendoring tools, users might need to specify go-dockerclient's dependencies manually.
Using with Docker 1.9 and Go 1.4
There's a tag for using go-dockerclient with Docker 1.9 (which requires
compiling go-dockerclient with Go 1.4), the tag name is docker-1.9/go-1.4.
The instructions below can be used to get a version of go-dockerclient that compiles with Go 1.4:
% git clone -b docker-1.9/go-1.4 https://github.com/fsouza/go-dockerclient.git $GOPATH/src/github.com/fsouza/go-dockerclient
% git clone -b v1.9.1 https://github.com/docker/docker.git $GOPATH/src/github.com/docker/docker
% go get github.com/fsouza/go-dockerclient