[CLOUDSTACK-10406] fix bugs that may cause program crash, change mkdir to mkdirs

[bd2019us]

Description

Fixes: #CLOUDSTACK-10406

Types of changes

• [x ] Bug fix (non-breaking change which fixes an issue)

[bd2019us]

retest please, the code change should not cause any test case failing.

[DaanHoogland]

@bd2019us the test are not reliable. code looks good, we'll run some integration tests in surplus.
Please use github issues in the future, we stopped using jira (which doesn't matter in this case as you came up with your own fix ;)
@blueorangutan package

[blueorangutan]

@DaanHoogland a Jenkins job has been kicked to build packages. I'll keep you posted as I make progress.

[blueorangutan]

Packaging result: ✔centos6 ✔centos7 ✔debian. JID-2671

[DaanHoogland]

@blueorangutan test

[blueorangutan]

@DaanHoogland a Trillian-Jenkins test job (centos7 mgmt + kvm-centos7) has been kicked to run smoke tests

[bd2019us]

@DaanHoogland Thanks for your information.

[blueorangutan]

Trillian test result (tid-3464)
Environment: kvm-centos7 (x2), Advanced Networking with Mgmt server 7
Total time taken: 38323 seconds
Marvin logs: https://github.com/blueorangutan/acs-prs/releases/download/trillian/pr3249-t3464-kvm-centos7.zip
Intermittent failure detected: /marvin/tests/smoke/test_deploy_virtio_scsi_vm.py
Intermittent failure detected: /marvin/tests/smoke/test_diagnostics.py
Intermittent failure detected: /marvin/tests/smoke/test_internal_lb.py
Intermittent failure detected: /marvin/tests/smoke/test_privategw_acl.py
Intermittent failure detected: /marvin/tests/smoke/test_ssvm.py
Intermittent failure detected: /marvin/tests/smoke/test_hostha_kvm.py
Smoke tests completed. 67 look OK, 3 have error(s)
Only failed tests results shown below:

Test	Result	Time (s)	Test File
test_04_verify_guest_lspci	Error	810.69	test_deploy_virtio_scsi_vm.py
test_06_verify_guest_lspci_again	Error	810.69	test_deploy_virtio_scsi_vm.py
test_01_ping_in_vr_success	Error	60.78	test_diagnostics.py
test_02_ping_in_vr_failure	Error	60.65	test_diagnostics.py
test_07_arping_in_vr	Failure	5.21	test_diagnostics.py
test_08_arping_in_ssvm	Failure	5.22	test_diagnostics.py
test_09_arping_in_cpvm	Failure	5.21	test_diagnostics.py
test_hostha_enable_ha_when_host_disabled	Error	4.66	test_hostha_kvm.py
test_hostha_enable_ha_when_host_in_maintenance	Error	301.87	test_hostha_kvm.py

[yadvr]

Failures not related to the change.