# blade create k8s container-container

## 介绍

Kubernetes 下 container 资源自身的场景，比如删容器，需要注意，执行容器场景，必须先确定 Pod，所以需要配置 Pod 相关参数

## 命令

支持场景命令如下

* `blade create k8s container-container remove` 删除容器

## 参数

```
--container-ids string     容器ID，支持配置多个
--container-names string   容器名称，支持配置多个
--docker-endpoint string   Docker server 地址，默认为本地的 /var/run/docker.sock
--namespace string       Pod 所属的命名空间，只能填写一个值，必填项
--evict-count string     限制实验生效的数量
--evict-percent string   限制实验生效数量的百分比，不包含 %
--labels string          Pod 资源标签，多个标签之前是或的关系
--names string           Pod 资源名
--kubeconfig string      kubeconfig 文件全路径（仅限使用 blade 命令调用时使用）
--waiting-time string    实验结果等待时间，默认为 20s，参数值要包含单位，例如 10s，1m
--force                    是否强制删除
```

## 案例

删除 default 命名空间下，Pod 名为 frontend-d89756ff7-szblb 下的 container id 是 072aa6bbf2e2e2 的容器

**yaml 配置方式**

```yaml
apiVersion: chaosblade.io/v1alpha1
kind: ChaosBlade
metadata:
  name: remove-container-by-id
spec:
  experiments:
  - scope: container
    target: container
    action: remove
    desc: "remove container by id"
    matchers:
    - name: container-ids
      value: ["072aa6bbf2e2e2"]
      # pod name
    - name: names
      value: ["frontend-d89756ff7-szblb"]
    - name: namespace
      value: ["default"]
```

保存为 yaml 文件，比如 remove\_container\_by\_id.yaml，使用 kubectl 命令执行：

```
kubectl apply -f remove_container_by_id.yaml
```

实验状态查询：

```
kubectl get blade remove-container-by-id -o json
```

返回结果如下(省略了一部分)：

```json
{
    "apiVersion": "v1",
    "items": [
        {
            "apiVersion": "chaosblade.io/v1alpha1",
            "kind": "ChaosBlade",
            "metadata": {
                "finalizers": [
                    "finalizer.chaosblade.io"
                ],
                "generation": 1,
                "name": "remove-container-by-id",
                "resourceVersion": "9429224",
                "selfLink": "/apis/chaosblade.io/v1alpha1/chaosblades/remove-container-by-id",
                "uid": "bb1482ea-ff76-11e9-8883-00163e0ad0b3"
            },
            "status": {
                "expStatuses": [
                    {
                        "action": "remove",
                        "resStatuses": [
                            {
                                "id": "f5bfa325da504cac",
                                "kind": "container",
                                "name": "php-redis",
                                "nodeName": "cn-hangzhou.192.168.0.205",
                                "state": "Success",
                                "success": true,
                                "uid": "072aa6bbf2e2e286ec77b4b05440107b48aeebae6aea06e8e3a65b40e4f40326"
                            }
                        ],
                        "scope": "container",
                        "state": "Success",
                        "success": true,
                        "target": "container"
                    }
                ],
                "phase": "Running"
            }
        }
    ],
}
```

执行前后，可以看到 Pod 内容器的变化: ![before](https://user-images.githubusercontent.com/3992234/68177415-2ff80600-ffc3-11e9-8bd3-ea8d66bf935d.png) ![after](https://user-images.githubusercontent.com/3992234/68177442-4ef69800-ffc3-11e9-9f5a-910d477b131a.png)

执行以下命令停止实验：

```
kubectl delete -f remove_container_by_id.yaml
```

或者直接删除 blade 资源：

```
kubectl delete blade remove-container-by-id
```

删除容器后，执行销毁实验命令不会恢复容器，需要靠容器自身的管理拉起！

**blade 执行方式**

```
blade create k8s container-container remove --container-ids 060833967b0a37 --names frontend-d89756ff7-szblb --namespace default --kubeconfig config
```

如果执行失败，会返回详细的错误信息；如果执行成功，会返回实验的 UID：

```
{"code":200,"success":true,"result":"17d7021c777b76e3"}
```

可通过以下命令查询实验状态：

```
blade query k8s create 17d7021c777b76e3 --kubeconfig config

{"code":200,"success":true,"result":{"uid":"17d7021c777b76e3","success":true,"error":"","statuses":[{"id":"205515ad8fcc31da","uid":"060833967b0a3733d10f0e64d3639066b8b7fbcf371e0ace2401af150dbd9b12","name":"php-redis","state":"Success","kind":"container","success":true,"nodeName":"cn-hangzhou.192.168.0.205"}]}}
```

销毁实验：

```
blade destroy 17d7021c777b76e3
```

删除容器后，执行销毁实验命令不会恢复容器，需要靠容器自身的管理拉起！

## 常见问题

其他问题参考 \[blade create k8s]\(blade create k8s.md) 常见问题


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