1# Copyright 2021 The Kubernetes Authors.
2#
3# Licensed under the Apache License, Version 2.0 (the "License");
4# you may not use this file except in compliance with the License.
5# You may obtain a copy of the License at
6#
7# http://www.apache.org/licenses/LICENSE-2.0
8#
9# Unless required by applicable law or agreed to in writing, software
10# distributed under the License is distributed on an "AS IS" BASIS,
11# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12# See the License for the specific language governing permissions and
13# limitations under the License.
14
15# This file create the kube-apiserver image.
16ARG BASEIMAGE
17ARG SETCAP_IMAGE
18
19# we use the hosts platform to apply the capabilities to avoid the need
20# to setup qemu for the builder.
21FROM --platform=linux/$BUILDARCH ${SETCAP_IMAGE}
22ARG BINARY
23COPY ${BINARY} /${BINARY}
24# We apply cap_net_bind_service so that kube-apiserver can be run as
25# non-root and still listen on port less than 1024
26RUN setcap cap_net_bind_service=+ep /${BINARY}
27
28FROM --platform=linux/$TARGETARCH ${BASEIMAGE}
29ARG BINARY
30COPY --from=0 /${BINARY} /usr/local/bin/${BINARY}
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