Vladislav Belogrudov ecafeb62d5 Add precheck for haproxy certificate file
If user enables TLS it also is necessary to create
a certificate. This precheck ensures the certificate
file exists before starting deployment.

Change-Id: I772d52e228ed012b9f8ccb5b616f9b188d3d340c
Closes-Bug: #1765677
2018-04-20 18:04:47 +03:00
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