initial working version

Signed-off-by: Johan Siebens <johan.siebens@gmail.com>

internal/cmd/target.go

@@ -0,0 +1,61 @@
+package cmd
+
+import (
+	"github.com/jsiebens/ionscale/internal/config"
+	"github.com/jsiebens/ionscale/pkg/client/ionscale"
+	"github.com/jsiebens/ionscale/pkg/gen/api"
+	"github.com/muesli/coral"
+	"io"
+)
+
+const (
+	ionscaleSystemAdminKey     = "IONSCALE_ADMIN_KEY"
+	ionscaleAddr               = "IONSCALE_ADDR"
+	ionscaleInsecureSkipVerify = "IONSCALE_SKIP_VERIFY"
+)
+
+type Target struct {
+	addr               string
+	insecureSkipVerify bool
+	systemAdminKey     string
+}
+
+func (t *Target) prepareCommand(cmd *coral.Command) {
+	cmd.Flags().StringVar(&t.addr, "addr", "", "Addr of the ionscale server, as a complete URL")
+	cmd.Flags().BoolVar(&t.insecureSkipVerify, "tls-skip-verify", false, "Disable verification of TLS certificates")
+	cmd.Flags().StringVar(&t.systemAdminKey, "admin-key", "", "If specified, the given value will be used as the key to generate a Bearer token for the call. This can also be specified via the IONSCALE_ADMIN_KEY environment variable.")
+}
+
+func (t *Target) createGRPCClient() (api.IonscaleClient, io.Closer, error) {
+	addr := t.getAddr()
+	skipVerify := t.getInsecureSkipVerify()
+	systemAdminKey := t.getSystemAdminKey()
+
+	auth, err := ionscale.LoadClientAuth(systemAdminKey)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	return ionscale.NewClient(auth, addr, skipVerify)
+}
+
+func (t *Target) getAddr() string {
+	if len(t.addr) != 0 {
+		return t.addr
+	}
+	return config.GetString(ionscaleAddr, "https://localhost:8000")
+}
+
+func (t *Target) getInsecureSkipVerify() bool {
+	if t.insecureSkipVerify {
+		return true
+	}
+	return config.GetBool(ionscaleInsecureSkipVerify, false)
+}
+
+func (t *Target) getSystemAdminKey() string {
+	if len(t.systemAdminKey) != 0 {
+		return t.systemAdminKey
+	}
+	return config.GetString(ionscaleSystemAdminKey, "")
+}