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FROM golang:1.22.4 AS build
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WORKDIR /go/src/github.com/aquasecurity/kube-bench/
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COPY makefile makefile
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COPY go.mod go.sum ./
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COPY main.go .
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COPY check/ check/
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COPY cmd/ cmd/
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COPY internal/ internal/
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ARG KUBEBENCH_VERSION
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RUN make build && cp kube-bench /go/bin/kube-bench
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# Add kubectl to run policies checks
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ARG KUBECTL_VERSION TARGETARCH
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RUN wget -O /usr/local/bin/kubectl "https://dl.k8s.io/release/v${KUBECTL_VERSION}/bin/linux/${TARGETARCH}/kubectl"
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RUN wget -O kubectl.sha256 "https://dl.k8s.io/release/v${KUBECTL_VERSION}/bin/linux/${TARGETARCH}/kubectl.sha256"
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# Verify kubectl sha256sum
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RUN /bin/bash -c 'echo "$(<kubectl.sha256) /usr/local/bin/kubectl" | sha256sum -c -'
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RUN chmod +x /usr/local/bin/kubectl
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FROM alpine:3.20.0 AS run
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WORKDIR /opt/kube-bench/
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# add GNU ps for -C, -o cmd, and --no-headers support
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# https://github.com/aquasecurity/kube-bench/issues/109
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RUN apk --no-cache add procps
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# Upgrading apk-tools to remediate CVE-2021-36159 - https://snyk.io/vuln/SNYK-ALPINE314-APKTOOLS-1533752
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# https://github.com/aquasecurity/kube-bench/issues/943
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RUN apk --no-cache upgrade apk-tools
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# Openssl is used by OpenShift tests
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# https://github.com/aquasecurity/kube-bench/issues/535
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# Ensuring that we update/upgrade before installing openssl, to mitigate CVE-2021-3711 and CVE-2021-3712
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RUN apk update && apk upgrade && apk --no-cache add openssl
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# Add glibc for running oc command
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RUN wget -q -O /etc/apk/keys/sgerrand.rsa.pub https://alpine-pkgs.sgerrand.com/sgerrand.rsa.pub
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RUN apk add gcompat
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RUN apk add jq
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ENV PATH=$PATH:/usr/local/mount-from-host/bin
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COPY --from=build /go/bin/kube-bench /usr/local/bin/kube-bench
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COPY --from=build /usr/local/bin/kubectl /usr/local/bin/kubectl
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COPY entrypoint.sh .
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COPY cfg/ cfg/
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ENTRYPOINT ["./entrypoint.sh"]
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CMD ["install"]
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# Build-time metadata as defined at http://label-schema.org
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ARG BUILD_DATE
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ARG VCS_REF
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LABEL org.label-schema.build-date=$BUILD_DATE \
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org.label-schema.name="kube-bench" \
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org.label-schema.description="Run the CIS Kubernetes Benchmark tests" \
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org.label-schema.url="https://github.com/aquasecurity/kube-bench" \
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org.label-schema.vcs-ref=$VCS_REF \
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org.label-schema.vcs-url="https://github.com/aquasecurity/kube-bench" \
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org.label-schema.schema-version="1.0"
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