mirror of https://github.com/docker/docs.git
61 lines
1.3 KiB
Go
61 lines
1.3 KiB
Go
package commands
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import (
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"errors"
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"fmt"
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"os"
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"strings"
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"github.com/docker/machine/cli"
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"github.com/docker/machine/libmachine/host"
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"github.com/docker/machine/libmachine/persist"
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"github.com/docker/machine/libmachine/state"
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)
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func cmdActive(c *cli.Context) {
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if len(c.Args()) > 0 {
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fatal("Error: Too many arguments given.")
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}
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store := getStore(c)
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host, err := getActiveHost(store)
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if err != nil {
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fatalf("Error getting active host: %s", err)
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}
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if host != nil {
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fmt.Println(host.Name)
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}
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}
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func getActiveHost(store persist.Store) (*host.Host, error) {
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hosts, err := listHosts(store)
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if err != nil {
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return nil, err
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}
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hostListItems := getHostListItems(hosts)
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for _, item := range hostListItems {
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if item.Active {
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return loadHost(store, item.Name)
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}
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}
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return nil, errors.New("Active host not found")
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}
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// IsActive provides a single function for determining if a host is active
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// based on both the url and if the host is stopped.
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func isActive(h *host.Host, currentState state.State, url string) (bool, error) {
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dockerHost := os.Getenv("DOCKER_HOST")
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// TODO: hard-coding the swarm port is a travesty...
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deSwarmedHost := strings.Replace(dockerHost, ":3376", ":2376", 1)
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if dockerHost == url || deSwarmedHost == url {
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return currentState == state.Running, nil
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}
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return false, nil
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}
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