iptables_ruleset_modifications: depend on iptables being installed

[candrews]

Description:

iptables_ruleset_modifications: depend on iptables being installed

Rationale:

iptables rules are only applicable when iptables is installed

Review Hints:

[openshift-ci]

Hi @candrews. Thanks for your PR.

I'm waiting for a ComplianceAsCode member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

Once the patch is verified, the new status will be reflected by the ok-to-test label.

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[github-actions]

Start a new ephemeral environment with changes proposed in this pull request:

Fedora Environment

Oracle Linux 8 Environment

[codeclimate]

Code Climate has analyzed commit 04555fe and detected 0 issues on this pull request.

The test coverage on the diff in this pull request is 100.0% (50% is the threshold).

This pull request will bring the total coverage in the repository to 53.3% (0.0% change).

View more on Code Climate.

[marcusburghardt]

Thanks