Bump github.com/zalando/skipper from 0.18.38 to 0.21.7

[dependabot[bot]]

Bumps github.com/zalando/skipper from 0.18.38 to 0.21.7.

Release notes

Sourced from github.com/zalando/skipper's releases.

v0.21.7

Changes

minor: countPathRoutes function (#2961)

The name could be a little bit misleading because actually this function calculates the number of Path{,Subtree} predicates in the single route. Nobody calculates the number of routes here, there is only one route which this function takes as input. Therefore n variable corresponds to the number of predicates, not the routes how it seems to be when taking a look at the code.

Multiarch Docker image

Multiarch Docker image is available in Github's docker registry:

docker run -it ghcr.io/zalando/skipper:v0.21.7 skipper --help

Docker image

Docker image is available in Zalando's Open Source registry:

docker run -it registry.opensource.zalan.do/teapot/skipper:v0.21.7 skipper --help

v0.21.6

Changes

jwt: benchmark Parse (#2958)

$ benchstat <(go test ./jwt -run=NONE -bench=BenchmarkParse -count=10)
goos: linux
goarch: amd64
pkg: github.com/zalando/skipper/jwt
cpu: Intel(R) Core(TM) i5-8350U CPU @ 1.70GHz
        │ /dev/fd/63  │
        │   sec/op    │
Parse-8   13.53µ ± 8%
    │  /dev/fd/63  │
    │     B/op     │

Parse-8   1.656Ki ± 0%
    │ /dev/fd/63 │
    │ allocs/op  │

</tr></table>

... (truncated)

Commits

• 9316c43 minor: countPathRoutes function (#2961)
• 7041036 jwt: benchmark Parse (#2958)
• 6c3386d cmd/skipper: do not show empty commit (#2955)
• accfde5 Passive health checks implemented (#2888)
• 8c03dfb cmd/skipper: fix version and commit for go install (#2954)
• e7dd553 filters/builtin: performance optimization for sanitize in StripQuery Filter (...
• 07b5566 doc: admissionControl response status code (#2952)
• 86c01b2 routesrv: require kubernetes option (#2950)
• d4e9b79 net/redistest: update go-redis client to work with redis:6 (#2949)
• da3d600 net/redisclient: fix nil pointer dereference (#2939)
• Additional commits viewable in compare view

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[szuecs]

@dependabot rebase

[dependabot[bot]]

Superseded by #686.