PKGBUILDs/kubernetes/PKGBUILD

# Maintainer: David Runge <dvzrv@archlinux.org>
# Maintainer: Morten Linderud <foxboron@archlinux.org>

pkgbase=kubernetes
pkgname=(
  kube-apiserver
  kube-controller-manager
  kube-proxy
  kube-scheduler
  kubeadm
  kubectl
  kubelet
  kubernetes-control-plane-common
)
pkgver=1.23.6
pkgrel=1
pkgdesc="Production-Grade Container Scheduling and Management"
arch=(x86_64 aarch64)
url="https://kubernetes.io/"
license=(Apache)
makedepends=(cni-plugins conntrack-tools ethtool git go go-md2man iptables-nft
socat rsync)
source=(
  https://github.com/$pkgbase/$pkgbase/archive/v$pkgver/$pkgbase-$pkgver.tar.gz
  $pkgbase-1.23.0-gotags.patch
  $pkgbase-1.23.0-static_cgo_enabled.patch
  10-kubeadm-kubelet.conf
  50-kubelet-sysctl.conf
  kubelet-modules.conf
  kubelet.env
  kubelet.service
  $pkgbase-sysusers.conf
  $pkgbase-tmpfiles.conf
  kube-apiserver.env
  kube-apiserver.service
  kube-controller-manager.env
  kube-controller-manager.service
  kube-proxy.env
  kube-proxy.service
  kube-scheduler.env
  kube-scheduler.service
)
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prepare() {
  # the -tags can only be a space separated list
  patch -Np1 -d $pkgbase-$pkgver -i ../$pkgbase-1.23.0-gotags.patch
  # set static builds CGO_ENABLED=1 for full RELRO
  patch -Np1 -d $pkgbase-$pkgver -i ../$pkgbase-1.23.0-static_cgo_enabled.patch
}

build() {
  export CGO_CPPFLAGS="$CPPFLAGS"
  export CGO_CFLAGS="$CFLAGS"
  export CGO_CXXFLAGS="$CXXFLAGS"
  export CGO_LDFLAGS="$LDFLAGS"
  export GOFLAGS="-buildmode=pie -trimpath -ldflags=-linkmode=external -mod=readonly -modcacherw"
  # NOTE: this also ensures the binaries have full RELRO
  export GOLDFLAGS="-linkmode=external"

  # added by Markus Pesch
  export GOARCH="$(go env GOARCH)"

  make all KUBE_VERBOSE=5 -C $pkgbase-$pkgver

  # shell completion
  local _binary
  mkdir -vp completions
  for _binary in {kubeadm,kubectl}; do
    $pkgbase-$pkgver/_output/bin/$_binary completion bash > completions/$_binary
    $pkgbase-$pkgver/_output/bin/$_binary completion zsh > completions/_$_binary
  done
  $pkgbase-$pkgver/_output/bin/kubectl completion fish > completions/kubectl.fish

  # docs
  (
    cd $pkgbase-$pkgver
    hack/update-generated-docs.sh
  )
}

package_kubeadm() {
  pkgdesc='A tool for quickly installing Kubernetes and setting up a secure cluster'
  groups=(kubernetes-tools)
  depends=(glibc crictl)
  install=$pkgname.install

  install -vDm 755 $pkgbase-$pkgver/_output/local/bin/linux/${GOARCH}/$pkgname -t "$pkgdir/usr/bin"
  # man pages
  install -vDm 644 $pkgbase-$pkgver/docs/man/man1/$pkgname* -t "$pkgdir/usr/share/man/man1/"
  # service override for kubelet.service
  install -vDm 644 10-$pkgname-kubelet.conf "$pkgdir/usr/lib/systemd/system/kubelet.service.d/10-$pkgname.conf"
  # shell completion
  install -vDm 644 completions/$pkgname -t "$pkgdir/usr/share/bash-completion/completions/"
  install -vDm 644 completions/_$pkgname -t "$pkgdir/usr/share/zsh/site-functions/"
}

package_kubectl() {
  pkgdesc='A command line tool for communicating with a Kubernetes API server'
  depends=(glibc)
  groups=(kubernetes-tools)

  install -vDm 755 $pkgbase-$pkgver/_output/local/bin/linux/${GOARCH}/$pkgname -t "$pkgdir/usr/bin"
  # man pages
  install -vDm 644 $pkgbase-$pkgver/docs/man/man1/$pkgname* -t "$pkgdir/usr/share/man/man1"
  # shell completion
  install -vDm 644 completions/$pkgname -t "$pkgdir/usr/share/bash-completion/completions/"
  install -vDm 644 completions/_$pkgname -t "$pkgdir/usr/share/zsh/site-functions/"
  install -vDm 644 completions/$pkgname.fish -t "$pkgdir/usr/share/fish/vendor_completions.d/"
}

package_kubelet() {
  pkgdesc='An agent that runs on each node in a Kubernetes cluster making sure that containers are running in a Pod'
  groups=(kubernetes-control-plane kubernetes-node)
  depends=(cni-plugins conntrack-tools ethtool glibc iptables-nft socat)
  optdepends=(
    'containerd: for using the containerd container runtime'
    'cri-o: for using the cri-o container runtime'
    'docker: for using the docker container runtime'
  )
  backup=(etc/$pkgbase/$pkgname.env)
  install=$pkgname.install

  install -vDm 755 $pkgbase-$pkgver/_output/local/bin/linux/${GOARCH}/$pkgname -t "$pkgdir/usr/bin"
  # man pages
  install -vDm 644 $pkgbase-$pkgver/docs/man/man1/$pkgname* -t "$pkgdir/usr/share/man/man1/"
  # config
  install -vDm 644 $pkgname.env -t "$pkgdir/etc/kubernetes/"
  # service
  install -vDm 644 $pkgname.service -t "$pkgdir/usr/lib/systemd/system"
  # modules
  install -vDm 644 $pkgname-modules.conf "$pkgdir/usr/lib/modules-load.d/$pkgname.conf"
  # sysctl
  install -vDm 644 50-$pkgname-sysctl.conf "$pkgdir/etc/sysctl.d/50-$pkgname.conf"
  # NOTE: without this directory a node worker will emit error messages upon joining a cluster
  install -vdm 700 "$pkgdir/etc/kubernetes/manifests"
}

package_kube-apiserver() {
  pkgdesc='Kubernetes control plane component exposing the Kubernetes API'
  depends=(glibc kubernetes-control-plane-common)
  groups=(kubernetes-control-plane)
  backup=(etc/$pkgbase/$pkgname.env)

  install -vDm 755 $pkgbase-$pkgver/_output/local/bin/linux/${GOARCH}/$pkgname -t "$pkgdir/usr/bin"
  # man pages
  install -vDm 644 $pkgbase-$pkgver/docs/man/man1/$pkgname* -t "$pkgdir/usr/share/man/man1/"
  # config
  install -vDm 644 $pkgname.env -t "$pkgdir/etc/kubernetes/"
  # service
  install -vDm 644 $pkgname.service -t "$pkgdir/usr/lib/systemd/system/"
}

package_kube-controller-manager() {
  pkgdesc='Kubernetes control plane component that runs controller processes'
  depends=(glibc kubernetes-control-plane-common)
  groups=(kubernetes-control-plane)
  backup=(etc/$pkgbase/$pkgname.env)

  install -vDm 755 $pkgbase-$pkgver/_output/local/bin/linux/${GOARCH}/$pkgname -t "$pkgdir/usr/bin"
  # man pages
  install -vDm 644 $pkgbase-$pkgver/docs/man/man1/$pkgname* -t "$pkgdir/usr/share/man/man1/"
  # config
  install -vDm 644 $pkgname.env -t "$pkgdir/etc/kubernetes/"
  # service
  install -vDm 644 $pkgname.service -t "$pkgdir/usr/lib/systemd/system/"
}

package_kube-proxy() {
  pkgdesc='Kubernetes network proxy that runs on each node'
  depends=(glibc kubernetes-control-plane-common)
  groups=(kubernetes-control-plane kubernetes-node)
  backup=(etc/$pkgbase/$pkgname.env)

  install -vDm 755 $pkgbase-$pkgver/_output/local/bin/linux/${GOARCH}/$pkgname -t "$pkgdir/usr/bin/"
  # man pages
  install -vDm 644 $pkgbase-$pkgver/docs/man/man1/$pkgname* -t "$pkgdir/usr/share/man/man1/"
  # config
  install -vDm 644 $pkgname.env -t "$pkgdir/etc/kubernetes/"
  # service
  install -vDm 644 $pkgname.service -t "$pkgdir/usr/lib/systemd/system/"
  install -vdm 755 "$pkgdir/etc/$pkgbase/"
  install -vdm 755 "$pkgdir/var/lib/$pkgname/"
}

package_kube-scheduler() {
  pkgdesc='Kubernetes control plane component watching over pods on nodes'
  depends=(glibc kubernetes-control-plane-common)
  groups=(kubernetes-control-plane)
  backup=(etc/$pkgbase/$pkgname.env)

  install -vDm 755 $pkgbase-$pkgver/_output/local/bin/linux/${GOARCH}/$pkgname -t "$pkgdir/usr/bin"
  # man pages
  install -vDm 644 $pkgbase-$pkgver/docs/man/man1/$pkgname* -t "$pkgdir/usr/share/man/man1/"
  # config
  install -vDm 644 $pkgname.env -t "$pkgdir/etc/kubernetes/"
  # service
  install -vDm 644 $pkgname.service -t "$pkgdir/usr/lib/systemd/system/"
}

package_kubernetes-control-plane-common() {
  pkgdesc='Common files for Kubernetes control plane packages'

  # sysusers.d
  install -vDm 644 $pkgbase-sysusers.conf "$pkgdir/usr/lib/sysusers.d/$pkgname.conf"
  # tmpfiles.d
  install -vDm 644 $pkgbase-tmpfiles.conf "$pkgdir/usr/lib/tmpfiles.d/$pkgname.conf"
}