introduce podman machine

podman machine allows podman to create, manage, and interact with a vm
running some form of linux (default is fcos).  podman is then configured
to be able to interact with the vm automatically.

while this is usable on linux, the real push is to get this working on
both current apple architectures in macos.

Ashley Cui contributed to this PR and was a great help.

[NO TESTS NEEDED]

Signed-off-by: baude <bbaude@redhat.com>

1 files changed, 50 insertions, 0 deletions

diff --git a/pkg/machine/connection.go b/pkg/machine/connection.go
new file mode 100644
index 000000000..e3985d8ac
--- /dev/null
+++ b/pkg/machine/connection.go
@@ -0,0 +1,50 @@
+package machine
+
+import (
+	"fmt"
+
+	"github.com/containers/common/pkg/config"
+	"github.com/pkg/errors"
+)
+
+func AddConnection(uri fmt.Stringer, name, identity string, isDefault bool) error {
+	if len(identity) < 1 {
+		return errors.New("identity must be defined")
+	}
+	cfg, err := config.ReadCustomConfig()
+	if err != nil {
+		return err
+	}
+	if _, ok := cfg.Engine.ServiceDestinations[name]; ok {
+		return errors.New("cannot overwrite connection")
+	}
+	if isDefault {
+		cfg.Engine.ActiveService = name
+	}
+	dst := config.Destination{
+		URI: uri.String(),
+	}
+	dst.Identity = identity
+	if cfg.Engine.ServiceDestinations == nil {
+		cfg.Engine.ServiceDestinations = map[string]config.Destination{
+			name: dst,
+		}
+		cfg.Engine.ActiveService = name
+	} else {
+		cfg.Engine.ServiceDestinations[name] = dst
+	}
+	return cfg.Write()
+}
+
+func RemoveConnection(name string) error {
+	cfg, err := config.ReadCustomConfig()
+	if err != nil {
+		return err
+	}
+	if _, ok := cfg.Engine.ServiceDestinations[name]; ok {
+		delete(cfg.Engine.ServiceDestinations, name)
+	} else {
+		return errors.Errorf("unable to find connection named %q", name)
+	}
+	return cfg.Write()
+}