#### What type of PR is this?
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We should be using replica to indicate a new node of redis.
Unfortunatley gcr still hasn't pushed another image, so we will still
have to use registry.k8s.io/redis-slave:v2
#### What this PR does / why we need it:
N/A
#### Which issue(s) this PR fixes:
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Fixes #
N/A
#### Special notes for your reviewer:
N/A
Signed-off-by: Charlie Drage <charlie@charliedrage.com>
