Deploy containerd only

deploy-containerd-only.sh

#!/bin/bash

CONTAINERD_VERSION="1.7.26"
RUNC_VERSION="1.2.5"
NERDCTL_VERSION="1.7.6"

main() {
    sudo yum update -y

    ARCH=$(uname -m | sed -e 's/aarch64/arm64/' -e 's/x86_64/amd64/')

    # containerd
    curl -sSL -o /tmp/containerd-linux.tar.gz https://github.com/containerd/containerd/releases/download/v${CONTAINERD_VERSION}/containerd-${CONTAINERD_VERSION}-linux-${ARCH}.tar.gz
    tar Cxzvf /usr/local /tmp/containerd-linux.tar.gz
    
    mkdir -p /etc/containerd
    containerd config default > /etc/containerd/config.toml
    sed -i 's/upperdir_label\ =\ false/upperdir_label\ =\ true/g' /etc/containerd/config.toml

    mkdir -p /usr/local/lib/systemd/system/
    cat <<EOF > /usr/local/lib/systemd/system/containerd.service
# Copyright The containerd Authors.
#
# 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.

[Unit]
Description=containerd container runtime
Documentation=https://containerd.io
After=network.target dbus.service

[Service]
ExecStartPre=-/sbin/modprobe overlay
ExecStart=/usr/local/bin/containerd

Type=notify
Delegate=yes
KillMode=process
Restart=always
RestartSec=5

# Having non-zero Limit*s causes performance problems due to accounting overhead
# in the kernel. We recommend using cgroups to do container-local accounting.
LimitNPROC=infinity
LimitCORE=infinity

# Comment TasksMax if your systemd version does not supports it.
# Only systemd 226 and above support this version.
TasksMax=infinity
OOMScoreAdjust=-999

[Install]
WantedBy=multi-user.target
EOF

    systemctl daemon-reload
    systemctl enable containerd --now

    # runc
    curl -sSL -o /usr/local/sbin/runc https://github.com/opencontainers/runc/releases/download/${RUNC_VERSION}/runc.${ARCH}
    chmod +x /usr/local/sbin/runc

    # nerdctl
    curl -sSL -o /tmp/nerdctl.tgz https://github.com/containerd/nerdctl/releases/download/v${NERDCTL_VERSION}/nerdctl-${NERDCTL_VERSION}-linux-${ARCH}.tar.gz
    tar -xvzf /tmp/nerdctl.tgz -C /usr/local/bin/
    chmod +x /usr/local/bin/nerdctl
}

main "$@"