Self-signed cert support for external-dns (route53)

[aemneina]

Rancher Versions:
Server: 1.5.1

Docker Version:
1.12.6

Steps to Reproduce:
*prereq: rancher server HA setup with self-signed cert
deploy the catalog item for route53 (rancher/external-dns:v0.6.2 image)

Results:
external dns provider fails to mount provided certs on host, and wont connect to rancher server url.

[deniseschannon]

Needs to be tested for Rancher v1.5 and Rancher v1.6.

Templates are in v1.5.x-externaldns branch of catalog.

[galal-hussein]

Testing on v1.5.8-rc1 has no issues, i was able to run rotue53 external dns catalog on a Rancher server with self signed certificate.

Testing on v1.6.0-rc1 showed an error with dns registration:

5/2/2017 10:15:21 PMtime="2017-05-02T19:15:21Z" level=info msg="Adding dns record: {{{`wordpress.wordpress.default`}}.rancher-test.com. [130.211.171.206] A 60}"
5/2/2017 10:16:21 PMtime="2017-05-02T19:16:21Z" level=info msg="Adding dns record: {{{`wordpress.wordpress.default`}}.rancher-test.com. [130.211.171.206] A 60}"

[deniseschannon]

Template for Rancher v1.6 has been updated are in v1.5.x-externaldns branch of catalog.

[galal-hussein]

Tested and verified the external dns template with Rancher v1.6