首先,我们需要创建一个名为init-container-example.yaml的YAML文件,该文件定义了我们的Pod和初始化容器的规格。以下是一个示例: apiVersion:v1kind:Podmetadata:name:init-container-podspec:containers:-name:main-containerimage:my-app-imageinitContainers:-name:dependency-downloaderimage:busyboxcommand:["wget","...
在这个例子中,`example-pod`包含一个名为`main-container`的主容器,以及两个`initContainers`,分别为`init-container-1`和`init-container-2`。`init-container-1`执行一个简单的命令,而`init-container-2`执行一个稍微复杂一些的命令。 要注意以下几点: - `initContainers`是一个列表,你可以根据需要定义多个初...
Kubernetes 模式:InitContainer模式 Init模式 init逻辑在一般的编程语言中是通用的。在面向对象的编程语言中,我们有构造函数的概念。构造函数是一个函数(或方法),每当对象被实例化时就会调用它。构造函数的目的是为它应该做的工作“准备”对象。例如,它设置变量的默认值、创建数据库连接对象、确保存在对象正确运行的必要...
apiVersion: v1 kind: Pod metadata: name: container-example spec: initContainers: - name: init-container-1 image: lqshow/busybox-curl:1.28 ... - name: init-container-2 image: lqshow/busybox-curl:1.28 ... containers: - name: container-1 image: lqshow/busybox-curl:1.28 ... - name:...
An init container is a type of container that starts and exits before the application containers start. If there are multiple init containers, they will be started in the
Init Containers are the containers that should run and complete before the startup of the main container in the pod. It provides a separate lifecycle for the initialization so that it enables separation of concerns in the applications. For example, you need to install some specific software befor...
Run init containers in Azure Container Instances to perform setup tasks in a container group before the application containers run.
Small clarification: the app_db_init container created as part of my example above should be exclusive to that one pod where it is mentioned. I could create a second pod app_test2, based on the same docker images but with a test2 suffix instead of test, and it should get its own data...
Example 1: Set up the init container definitionPowerShell 复制 打开Cloud Shell New-AzContainerInstanceInitDefinitionObject -Name "initDefinition" -Command "/bin/sh -c myscript.sh" Name --- initDefinitionThis command sets up the init container definition with command /bin/sh -c myscript...
In some cases, initContainer's actions are not compatible with running main container(s), causing other failures. For example: init container moves application code into tmpfs, (or PV), while main container's entrypoint.sh updates config values from external source, causing application config to...