Preface

The shared unattended switch and interactive workflow are described in environment modes.

Setting Up Virtual Memory

TIP

Allocate some swap space to prevent your machine from crashing.

Unit conversion: Inputting 1024 results in 1G of SWAP - virtual memory. Virtual memory occupies disk space and is automatically utilized when the physical memory is insufficient. However, this leads to high IO usage and CPU performance overhead.

It is recommended to allocate virtual memory twice the size of your physical memory.

curl -L https://raw.githubusercontent.com/spiritLHLS/addswap/main/addswap.sh -o addswap.sh && chmod +x addswap.sh && bash addswap.sh

Environment Setup

bash <(wget -qO- https://raw.githubusercontent.com/oneclickvirt/containerd/main/containerdinstall.sh)

Use the shared unattended switch:

export noninteractive=true
bash <(wget -qO- https://raw.githubusercontent.com/oneclickvirt/containerd/main/containerdinstall.sh)

Example with explicit settings:

export noninteractive=true
export NEED_DISK_LIMIT=y
export CONTAINERD_POOL_SIZE=20
export CONTAINERD_INSTALL_PATH=/var/lib/containerd
export CONTAINERD_LOOP_FILE=/opt/containerd-pool.img
export CONTAINERD_MAIN_INTERFACE=eth0
export CONTAINERD_IPV6_SUBNET_PREFIX=80
export CONTAINERD_IPV6_SUBNET_INDEX=1
bash <(wget -qO- https://raw.githubusercontent.com/oneclickvirt/containerd/main/containerdinstall.sh)

Variable	Description	Default
noninteractive	Use defaults without prompting when set to true	unset
WITHOUTCDN	Disable CDN acceleration when set to TRUE	unset
NEED_DISK_LIMIT	Enable btrfs disk limits; accepts y/yes/true/1	n
CONTAINERD_INSTALL_PATH	containerd data directory	/var/lib/containerd
CONTAINERD_POOL_SIZE	btrfs loop pool size in GB	20
CONTAINERD_LOOP_FILE	btrfs loop file path	/opt/containerd-pool.img
CONTAINERD_MAIN_INTERFACE	Host uplink for NAT/NDP	detected automatically
CONTAINERD_IPV6_SUBNET_PREFIX	Prefix length of the CNI subnet carved from the host parent prefix	80
CONTAINERD_IPV6_SUBNET_INDEX	Preferred subnet index, starting at 0; explicit values are not automatically changed	1
NDPRESPONDER_SOURCE_URL	Git source used for a local responder build when its image is unavailable or has the wrong architecture	https://github.com/oneclickvirt/ndpresponder.git

Uninstall containerd Environment

Remove the full containerd environment, including containers, images, CNI networks, systemd services and binaries:

bash <(wget -qO- https://raw.githubusercontent.com/oneclickvirt/containerd/main/containerduninstall.sh)

The script asks for yes; removal is irreversible. For unattended removal:

export noninteractive=true
bash <(wget -qO- https://raw.githubusercontent.com/oneclickvirt/containerd/main/containerduninstall.sh)

Verify installation

nerdctl ps -a

For long installations, use screen or tmux to avoid interruption when SSH disconnects.