generated from bing/readnotes
155 lines
2.5 KiB
Markdown
155 lines
2.5 KiB
Markdown
# crictl
|
||
crictl 是一个开源的container runtime 管理工具。
|
||
|
||
## 安装crictl
|
||
|
||
crictl是kubeadmin的依赖包，安装kubeadm会自动安装cri-tools包
|
||
|
||
也可以安装指定版本
|
||
|
||
```bash
|
||
VERSION="v1.20.0"
|
||
wget https://github.com/kubernetes-sigs/cri-tools/releases/download/$VERSION/crictl-$VERSION-linux-amd64.tar.gz
|
||
sudo tar zxvf crictl-$VERSION-linux-amd64.tar.gz -C /usr/local/bin
|
||
rm -f crictl-$VERSION-linux-amd64.tar.gz
|
||
```
|
||
|
||
***21-12-09更新，crictl 工具 1.19版(k8s1.23)已经无法兼容containerd 1.4，Redhat8库里面的是1.4无法正常使用，需要安装1.5版本***
|
||
|
||
## 配置crictl
|
||
|
||
配置文件位于`/etc/crictl.yaml`
|
||
|
||
docker
|
||
|
||
```bash
|
||
runtime-endpoint: unix:///var/run/dockershim.sock
|
||
image-endpoint: unix:///var/run/dockershim.sock
|
||
timeout: 2
|
||
debug: true
|
||
pull-image-on-create: false
|
||
```
|
||
|
||
containerd
|
||
|
||
```bash
|
||
cat <<EOF >/etc/crictl.yaml
|
||
runtime-endpoint: unix:///run/containerd/containerd.sock
|
||
image-endpoint: unix:///run/containerd/containerd.sock
|
||
timeout: 10
|
||
debug: false
|
||
EOF
|
||
```
|
||
|
||
## 创建pod
|
||
|
||
编写pod配置,需要两个json文件或两个yaml文件
|
||
|
||
pod.json
|
||
|
||
```json
|
||
{
|
||
"metadata": {
|
||
"name": "nginx-sandbox",
|
||
"namespace": "default",
|
||
"attempt": 1,
|
||
"uid": "hdishd83djaidwnduwk28bcsb"
|
||
},
|
||
"log_directory": "/tmp",
|
||
"linux": {
|
||
}
|
||
}
|
||
```
|
||
|
||
container.json
|
||
|
||
```json
|
||
{
|
||
"metadata": {
|
||
"name": "busybox"
|
||
},
|
||
"image":{
|
||
"image": "busybox"
|
||
},
|
||
"command": [
|
||
"top"
|
||
],
|
||
"log_path":"busybox.0.log",
|
||
"linux": {
|
||
}
|
||
}
|
||
```
|
||
pod.yaml
|
||
|
||
```yaml
|
||
metadata:
|
||
attempt: 1
|
||
name: busybox-sandbox
|
||
namespace: default
|
||
uid: hdishd83djaidwnduwk28bcsb
|
||
log_directory: /tmp
|
||
linux:
|
||
namespaces:
|
||
options: {}
|
||
```
|
||
|
||
container.yaml
|
||
|
||
```yaml
|
||
metadata:
|
||
name: busybox
|
||
image:
|
||
image: busybox:latest
|
||
command:
|
||
- top
|
||
log_path: busybox.0.log
|
||
```
|
||
|
||
执行命令
|
||
|
||
```bash
|
||
crictl runp container.json pod.json
|
||
#crictl runp container.yaml pod.yaml
|
||
```
|
||
|
||
## nginx
|
||
|
||
container.yaml
|
||
|
||
```yaml
|
||
metadata:
|
||
name: nginx
|
||
image:
|
||
image: nginx:1.19
|
||
log_path: nginx.0.log
|
||
mounts:
|
||
- container_path: /etc/nginx/nginx.conf
|
||
host_path: /etc/nginx/nginx.conf
|
||
readonly: true
|
||
- container_path: /etc/nginx/conf.d
|
||
host_path: /etc/nginx/conf.d
|
||
readonly: true
|
||
linux:
|
||
namespaces:
|
||
options: {}
|
||
```
|
||
|
||
pod.yaml
|
||
|
||
```yaml
|
||
metadata:
|
||
attempt: 1
|
||
name: nginx-pod
|
||
namespace: default
|
||
log_directory: /tmp/nginx
|
||
linux:
|
||
namespaces:
|
||
options: {}
|
||
port_mappings:
|
||
- host_port: 80
|
||
container_port: 80
|
||
host_ip: 0.0.0.0
|
||
- host_port: 443
|
||
container_port: 443
|
||
host_ip: 0.0.0.0
|
||
``` |