fix empty path handling

[M00nF1sh]

Changes done:

1. When ingress path is empty, we'll make the rule to be '/*', which aligns the ingress spec of "catch all traffic"

• This is required since there should be at least one condition for ALB rules.
• This is required if you modify the rules with specify condition, the condition will not be override. (e.g. remove host/path from ingress spec, the host/path condition won't be modified in ALB rule).

Tests done:

1. Create ingress without path => ALB rule with "/*" are created.
2. • Create ingress with hostname/path => ALB rule with host/condition are created.
   • Remove host/path from ingress => ALB rule modified to have only "/*" path condition

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[bigkraig]

/lgtm

[sawanoboly]

@M00nF1sh This change conflicts with Issue below. Please consider about Hostname only entry. 🙏

#573 (comment)

[M00nF1sh]

@M00nF1sh This change conflicts with Issue below. Please consider about Hostname only entry. 🙏

#573 (comment)

@sawanoboly , thanks for sharing the use case 👍
I'll provide a fix today to change the behavior to only maps to "/*" when host condition is not specified.(it's required to have at least one rule)