Decouple cmd package from the clab application part1 (#1906)

* init

* update

* update

* update

* fix exec

* fix nspath for bridge

* update

* fix tool create veth command

* fix ext-container

* fix CLAB_INTFS on linux node

* add host endpoints

* fix runtime detection for tools veth create

* limit internal functions visibility

* comments @hellt

* please deepsource

* added comments and getters

* run `make format`

* augment func comment

---------

Co-authored-by: Roman Dodin <dodin.roman@gmail.com>

Makefile

@@ -55,7 +55,7 @@ endif
 ifndef suite
 override suite = .
 endif
-robot-test: build-debug
+robot-test: build-with-podman-debug
 	CLAB_BIN=$(BINARY) $$PWD/tests/rf-run.sh $(runtime) $$PWD/tests/$(suite)
 
 MOCKDIR = ./mocks

clab/authz_keys.go

@@ -25,9 +25,9 @@ const (
 	authzKeysFPath = "~/.ssh/authorized_keys"
 )
 
-// CreateAuthzKeysFile creates the authorized_keys file in the lab directory
+// createAuthzKeysFile creates the authorized_keys file in the lab directory
 // using the public ssh keys retrieved from agent and local files.
-func (c *CLab) CreateAuthzKeysFile() error {
+func (c *CLab) createAuthzKeysFile() error {
 	b := new(bytes.Buffer)
 
 	for _, k := range c.SSHPubKeys {