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Move over to controller-runtime over doing it ourselves#348
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| type Client struct { | ||
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There's never a http.Client used within ACR - it creates its own - so removing.
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During testing we identified that there was significant memory utilisation when running
version-checkerfor 2-3 days we saw that our test cluster was running at ~400+MB when it started off at around 40-60MB.This PR changes over from manually implemented shared informers and managing the workqueue and its goroutines, to use
controller-runtime, this means we don't have to manage as much code/logic and workers ourselves and is managed for us, allowing us to focus more on the purpose of version-checker.We do believe that there is still a memory leak, however from testing (over 24 hour period) on the same cluster, that memory usage has increased at a much slower rate, additionally we've seen that goroutines are staying at a reasonable number, where as previously it was growing exponentially at, what was an alarming rate under some situations.