nerdctl install【nerdctl 安装】-摩杜云开发者社区

nerdctl install【nerdctl 安装】_云原生

文章目录

1. 在线安装
2. 离线安装

1. 在线安装

#!/bin/bash

source ./config.sh

ENABLE_DOWNLOAD=${ENABLE_DOWNLOAD:-true}

if [ ! -e files ]; then
    mkdir -p files
fi

FILES_DIR=./files
if $ENABLE_DOWNLOAD; then
    FILES_DIR=./tmp/files
    mkdir -p $FILES_DIR
fi

# download files, if not found
download() {
    url=$1
    dir=$2

    filename=$(basename $1)
    mkdir -p ${FILES_DIR}/$dir

    if [ ! -e ${FILES_DIR}/$dir/$filename ]; then
        echo "==> download $url"
        (cd ${FILES_DIR}/$dir && curl -SLO $1)
    fi
}

if $ENABLE_DOWNLOAD; then
    # TODO: These version must be same as kubespray. Refer `roles/downloads/defaults/main.yml` of kubespray.
    RUNC_VERSION=1.1.8
    CONTAINERD_VERSION=1.7.3
    NERDCTL_VERSION=1.5.0
    CNI_VERSION=1.3.0

    download https://github.com/opencontainers/runc/releases/download/v${RUNC_VERSION}/runc.amd64 runc/v${RUNC_VERSION}
    download https://github.com/containerd/containerd/releases/download/v${CONTAINERD_VERSION}/containerd-${CONTAINERD_VERSION}-linux-amd64.tar.gz
    download https://github.com/containerd/nerdctl/releases/download/v${NERDCTL_VERSION}/nerdctl-${NERDCTL_VERSION}-linux-amd64.tar.gz
    download https://github.com/containernetworking/plugins/releases/download/v${CNI_VERSION}/cni-plugins-linux-amd64-v${CNI_VERSION}.tgz kubernetes/cni
else
    FILES_DIR=./files
fi

select_latest() {
    local latest=$(ls $* | tail -1)
    if [ -z "$latest" ]; then
        echo "No such file: $*"
        exit 1
    fi
    echo $latest
}

# Install runc
echo "==> Install runc"
sudo cp $(select_latest "${FILES_DIR}/runc/v*/runc.amd64") /usr/local/bin/runc
sudo chmod 755 /usr/local/bin/runc

# Install nerdctl
echo "==> Install nerdctl"
tar xvf $(select_latest "${FILES_DIR}/nerdctl-*-linux-amd64.tar.gz") -C /tmp
sudo cp /tmp/nerdctl /usr/local/bin

# Install containerd
echo "==> Install containerd"
sudo tar xvf $(select_latest "${FILES_DIR}/containerd-*-linux-amd64.tar.gz") --strip-components=1 -C /usr/local/bin

cat <<EOF> /etc/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 local-fs.target

[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
LimitNOFILE=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

sudo mkdir -p \
     /etc/systemd/system/containerd.service.d \
     /etc/containerd \
     /var/lib/containerd \
     /run/containerd

cat <<EOF> /etc/containerd/config.toml
version = 2
root = "/var/lib/containerd"
state = "/run/containerd"
oom_score = 0

[grpc]
  address = "/run/containerd/containerd.sock"
  uid = 0
  gid = 0

[debug]
  address = "/run/containerd/debug.sock"
  uid = 0
  gid = 0
  level = "info"

[metrics]
  address = ""
  grpc_histogram = false

[cgroup]
  path = ""

[plugins]
  [plugins."io.containerd.grpc.v1.cri".containerd]
    default_runtime_name = "runc"
    snapshotter = "overlayfs"
  [plugins."io.containerd.grpc.v1.cri".containerd.runtimes.runc]
    runtime_type = "io.containerd.runc.v2"
  [plugins."io.containerd.grpc.v1.cri".containerd.runtimes.runc.options]
    systemdCgroup = true
EOF

echo "==> Start containerd"
sudo systemctl daemon-reload
sudo systemctl enable --now containerd

# Install cni plugins
echo "==> Install CNI plugins"
sudo mkdir -p /opt/cni/bin
sudo tar xvzf $(select_latest "${FILES_DIR}/kubernetes/cni/cni-plugins-linux-amd64-v*.tgz") -C /opt/cni/bin

2. 离线安装

tar xvf containerd-1.7.5-linux-amd64.tar.gz --strip-components=1 -C /usr/local/bin
cp runc/v1.1.9/runc.amd64 /usr/local/bin/runc
chmod 755 /usr/local/bin/runc

tar zxvf nerdctl-1.5.0-linux-amd64.tar.gz -C /tmp/
cp /tmp/nerdctl /usr/local/bin

sudo mkdir -p \
     /etc/systemd/system/containerd.service.d \
     /etc/containerd \
     /var/lib/containerd \
     /run/containerd

配置 containerd

$ vim /etc/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 local-fs.target

[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
LimitNOFILE=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

$ vim /etc/containerd/config.toml
version = 2
root = "/var/lib/containerd"
state = "/run/containerd"
oom_score = 0

[grpc]
  address = "/run/containerd/containerd.sock"
  uid = 0
  gid = 0

[debug]
  address = "/run/containerd/debug.sock"
  uid = 0
  gid = 0
  level = "info"

[metrics]
  address = ""
  grpc_histogram = false

[cgroup]
  path = ""

[plugins]
  [plugins."io.containerd.grpc.v1.cri".containerd]
    default_runtime_name = "runc"
    snapshotter = "overlayfs"
  [plugins."io.containerd.grpc.v1.cri".containerd.runtimes.runc]
    runtime_type = "io.containerd.runc.v2"
  [plugins."io.containerd.grpc.v1.cri".containerd.runtimes.runc.options]
    systemdCgroup = true

sudo systemctl daemon-reload
sudo systemctl enable --now containerd

CNI plugins install

sudo mkdir -p /opt/cni/bin
tar xvzf cni-plugins-linux-amd64-v1.3.0.tgz -C /opt/cni/bin

启动容器

start-registry.sh 
#!/bin/bash


REGISTRY_IMAGE=${REGISTRY_IMAGE:-registry:2.8.2}
REGISTRY_DIR=${REGISTRY_DIR:-/var/lib/registry}
REGISTRY_PORT=${REGISTRY_PORT:-35000}

if [ ! -e $REGISTRY_DIR ]; then
    sudo mkdir $REGISTRY_DIR
fi

echo "===> Start registry"
sudo /usr/local/bin/nerdctl --insecure-registry=true  run -d \
    --network host \
    -e REGISTRY_HTTP_ADDR=0.0.0.0:${REGISTRY_PORT} \
    --restart always \
    --name registry \
    -v $REGISTRY_DIR:/var/lib/registry \
    $REGISTRY_IMAGE

sh start-registry.sh 
===> Start registry
be7b2cd72cd0f39588bb6083f730ac840e08de766143010d61cd8d9f4215289f

配置 /etc/hosts

$ cat /etc/hosts
10.70.0.73 registry.upm

测试

nerdctl tag registry:2.8.2 registry.upm:35000/registry:2.8.2
nerdctl --insecure-registry=true push  registry.upm:35000/registry:2.8.2
nerdctl --insecure-registry=true pull  registry.upm:35000/registry:2.8.2