031_install_containerd.sh.tpl

# Copyright 2021 Flant JSC
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

{{- if eq .cri "Containerd" }}

bb-event-on 'bb-package-installed' 'post-install'
post-install() {
  systemctl daemon-reload
  systemctl enable containerd.service
{{ if ne .runType "ImageBuilding" -}}
  systemctl restart containerd.service
{{- end }}
}

if bb-apt-package? docker-ce || bb-apt-package? docker.io; then
  bb-deckhouse-get-disruptive-update-approval
  if systemctl is-active -q kubelet.service; then
    systemctl stop kubelet.service
  fi
  # Stop docker containers if they run
  docker stop $(docker ps -q) || true
  systemctl stop docker.service
  systemctl stop containerd.service
  # Kill running containerd-shim processes
  kill $(ps ax | grep containerd-shim | grep -v grep |awk '{print $1}') 2>/dev/null || true
  # Remove mounts
  umount $(mount | grep "/run/containerd" | cut -f3 -d" ") 2>/dev/null || true
  bb-rp-remove docker-ce containerd-io
  bb-apt-remove docker.io docker-ce containerd-io
  rm -rf /var/lib/docker/ /var/run/docker.sock /var/lib/containerd/ /etc/docker /etc/containerd/config.toml
  # Pod kubelet-eviction-thresholds-exporter in cri=Docker mode mounts /var/run/containerd/containerd.sock, /var/run/containerd/containerd.sock will be a directory and newly installed containerd won't run. Same thing with crictl.
  rm -rf /var/run/containerd /usr/local/bin/crictl

  bb-log-info "Setting reboot flag due to cri being updated"
  bb-flag-set reboot
fi

# set default
desired_version={{ index .k8s .kubernetesVersion "bashible" "debian" "10" "containerd" "desiredVersion" | quote }}
allowed_versions_pattern={{ index .k8s .kubernetesVersion "bashible" "debian" "10" "containerd" "allowedPattern" | quote }}

{{- range $key, $value := index .k8s .kubernetesVersion "bashible" "debian" }}
  {{- $debianVersion := toString $key }}
  {{- if or $value.containerd.desiredVersion $value.containerd.allowedPattern }}
if bb-is-debian-version? {{ $debianVersion }} ; then
  desired_version={{ $value.containerd.desiredVersion | quote }}
  allowed_versions_pattern={{ $value.containerd.allowedPattern | quote }}
fi
  {{- end }}
{{- end }}

if [[ -z $desired_version ]]; then
  bb-log-error "Desired version must be set"
  exit 1
fi

should_install_containerd=true
version_in_use="$(dpkg -l containerd.io 2>/dev/null | grep -E "(hi|ii)\s+(containerd.io)" | awk '{print $2"="$3}' || true)"
if test -n "$allowed_versions_pattern" && test -n "$version_in_use" && grep -Eq "$allowed_versions_pattern" <<< "$version_in_use"; then
  should_install_containerd=false
fi

if [[ "$version_in_use" == "$desired_version" ]]; then
  should_install_containerd=false
fi

if [[ "$should_install_containerd" == true ]]; then
# set default
containerd_tag="{{- index $.images.registrypackages (printf "containerdDebian%sBuster" (index .k8s .kubernetesVersion "bashible" "debian" "10" "containerd" "desiredVersion" | replace "containerd.io=" "" | replace "." "" | replace "-" "")) }}"

{{- $debianName := dict "9" "Stretch" "10" "Buster" "11" "Bullseye" }}
{{- range $key, $value := index .k8s .kubernetesVersion "bashible" "debian" }}
  {{- $debianVersion := toString $key }}
  if bb-is-debian-version? {{ $debianVersion }} ; then
    containerd_tag="{{- index $.images.registrypackages (printf "containerdDebian%s%s" ($value.containerd.desiredVersion | replace "containerd.io=" "" | replace "." "" | replace "-" "") (index $debianName $debianVersion)) }}"
  fi
{{- end }}

  crictl_tag="{{ index .images.registrypackages (printf "crictl%s" (.kubernetesVersion | replace "." "")) | toString }}"

  bb-rp-install "containerd-io:${containerd_tag}" "crictl:${crictl_tag}"
fi
{{- end }}