there's no vowel between the K and the n. It's like the -(c)kn- in 'Hackney' or 'Cockney'
As pronounced, there is a weak unstressed vowel because k is a velar plosive. Don't make it as strong as the one in cockerney or people will think you can't speak German 😁
No, K'nipeks; the vowel between K and N is a schwa