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Create docker client from environment variables DOCKER_HOST, DOCKER_TLS_VERIFY, and DOCKER_CERT_PATH

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This commit is contained in:
Radek Maciaszek 2017-08-04 17:08:32 +01:00
parent 745946113b
commit 44523e1cc3
1 changed files with 16 additions and 5 deletions
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21
pkg/utils/docker/client.go
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@ -18,17 +18,28 @@ package docker
import (
"github.com/fsouza/go-dockerclient"
"os"
)
// DockerClient connects to Docker client on host
func DockerClient() (*docker.Client, error) {
// Default end-point, HTTP + TLS support to be added in the future
// Eventually functionality to specify end-point added to command-line
endpoint := "unix:///var/run/docker.sock"
var (
err error
client *docker.Client
)
// Use the unix socker end-point. No support for TLS (yet)
client, err := docker.NewClient(endpoint)
dockerHost := os.Getenv("DOCKER_HOST")
if len(dockerHost) > 0 {
// Create client instance from Docker's environment variables:
// DOCKER_HOST, DOCKER_TLS_VERIFY, DOCKER_CERT_PATH
client, err = docker.NewClientFromEnv()
} else {
// Default unix socker end-point
endpoint := "unix:///var/run/docker.sock"
client, err = docker.NewClient(endpoint)
}
if err != nil {
return client, err
}