This change corrects many problems detected by the `yamllint` linter.
It's a preparation for enabling this linter in change
Ie746230f28fe3ed0cf218201d5a3810f7bc44070.
For instance, the first run of the YAML linter helped discovering a key
duplication problem in `oso_ha.yaml`: the `depends_on` key was present
twice, so the first occurence was ignored.
Other changes are cosmetic: extra spaces, extra blank lines, missing
newlines at end-of-file, etc.
Change-Id: I7f2369adfb152fd2a74b9b105e969e653e592922
The security group properties must be strings or we get validation
errors, and firewall-cmd rule addition should be permanent
Change-Id: Ia03947690ff8142b6e700c808a898283c7b8d095
This change makes it possible for us to properly maintain example templates
for various distributions by organizing them into subdirectories.
Change-Id: I06e4d24cae83330af97870bab1e6795999218d1e