oscontainer-deprecated-legacy-format: use runvm not nested containers

Author: jmarrero

src/cmd-upload-oscontainer-deprecated-legacy-format

@@ -104,10 +104,11 @@ digestfile = "tmp/oscontainer-digest"
 # We need to pass the auth file from the unpriv user to the root process
 cosa_argv = ['sudo', '--preserve-env=container,DISABLE_TLS_VERIFICATION,SSL_CERT_DIR,SSL_CERT_FILE,REGISTRY_AUTH_FILE,OSCONTAINER_CERT_DIR']
 authfile = os.environ.get("REGISTRY_AUTH_FILE", os.path.expanduser('~/.docker/config.json'))
-if not os.path.isfile(authfile):
-    raise SystemExit(f"Missing {authfile}")
-os.environ['REGISTRY_AUTH_FILE'] = authfile
-cosa_argv.extend(['/usr/lib/coreos-assembler/oscontainer.py', '--workdir=./tmp', 'build',  f"--from={args.from_image}"])
+#if not os.path.isfile(authfile):
+#    raise SystemExit(f"Missing {authfile}")
+#os.environ['REGISTRY_AUTH_FILE'] = authfile
+print("Entering vm to build oscontainer for build: {}".format(latest_build))
+cosa_argv.extend(['/bin/sh', '-c', '. /usr/lib/coreos-assembler/cmdlib.sh; prepare_build && . /usr/lib/coreos-assembler/cmdlib.sh && runvm -- /usr/lib/coreos-assembler/oscontainer-deprecated-legacy-format.py', '--workdir=./tmp', 'build',  f"--from={args.from_image}"])
 for d in args.add_directory:
     cosa_argv.append(f"--add-directory={d}")
 cosa_argv.append(f"--display-name={display_name}")