containers

问题 I have a simple screen with a container about 100 in height and with blue color. I want to add a shadow or elevation at the bottom of the container. This is my code below import 'package:flutter/material.dart'; import 'package:finsec/utils/strings.dart'; import 'package:finsec/utils/dimens.dart'; import 'package:finsec/utils/colors.dart'; void main() { runApp(new IncomeFragment()); } class IncomeFragment extends StatelessWidget { @override Widget build(BuildContext context) { return new Stack

问题 First of all thank you for your answer, whether it is useful or not. I don't quite understand Container, the problem is as follows Is Contatiner a component of NodeManager? Is the Contatiner created with NodeManager? When NodeManager or MRAppMaster wants to start a Contatiner, do you only need to configure it? Is there a collection of available resources in the scheduler? Will some resources be allocated for running jobs every time? Is it like cutting a ham? I want to know how a Contatiner is

问题 First of all thank you for your answer, whether it is useful or not. I don't quite understand Container, the problem is as follows Is Contatiner a component of NodeManager? Is the Contatiner created with NodeManager? When NodeManager or MRAppMaster wants to start a Contatiner, do you only need to configure it? Is there a collection of available resources in the scheduler? Will some resources be allocated for running jobs every time? Is it like cutting a ham? I want to know how a Contatiner is

问题 I want to map some random port on my computer e.g. localhost:7006 to my WordPress docker container's port 80 .When I change the port of WordPress from 80:80 to 7006:80 it's not only stops working on localhost(port 80) but also don't respond on localhost:7006 . docker-compose.yml file looks like this: version: '3' services: wordpress: depends_on: - db image: wordpress:4.7.1 restart: always volumes: - ./wp-content:/var/www/html/wp-content environment: WORDPRESS_DB_HOST: db:3306 WORDPRESS_DB

问题 When I input Seq(1,2,3) in REPL, it returns me List(1,2,3) scala> Seq(1,2,3) res8: Seq[Int] = List(1, 2, 3) Therefore, I thought the List(1,2,3) may be of type List[Int] . And I tried to specify the type for the variable who are assigned to Seq(1,2,3) , but unexpectedly, the REPL complains like this: scala> val a:List[Int]=Seq(1,2,3) <console>:20: error: type mismatch; found : Seq[Int] required: List[Int] val a:List[Int]=Seq(1,2,3) Does anyone have ideas about what Seq[Int] = List(1, 2, 3)

问题 When I input Seq(1,2,3) in REPL, it returns me List(1,2,3) scala> Seq(1,2,3) res8: Seq[Int] = List(1, 2, 3) Therefore, I thought the List(1,2,3) may be of type List[Int] . And I tried to specify the type for the variable who are assigned to Seq(1,2,3) , but unexpectedly, the REPL complains like this: scala> val a:List[Int]=Seq(1,2,3) <console>:20: error: type mismatch; found : Seq[Int] required: List[Int] val a:List[Int]=Seq(1,2,3) Does anyone have ideas about what Seq[Int] = List(1, 2, 3)

问题 When I input Seq(1,2,3) in REPL, it returns me List(1,2,3) scala> Seq(1,2,3) res8: Seq[Int] = List(1, 2, 3) Therefore, I thought the List(1,2,3) may be of type List[Int] . And I tried to specify the type for the variable who are assigned to Seq(1,2,3) , but unexpectedly, the REPL complains like this: scala> val a:List[Int]=Seq(1,2,3) <console>:20: error: type mismatch; found : Seq[Int] required: List[Int] val a:List[Int]=Seq(1,2,3) Does anyone have ideas about what Seq[Int] = List(1, 2, 3)

问题 I've been banging my head against this wall on and off for a while. There is a ton of information on Kubernetes on the web, but it's all assuming so much knowledge that n00bs like me don't really have much to go on. So, can anyone share a simple example of the following (as a yaml file)? All I want is two pods let's say one pod has a backend (I don't know - node.js), and one has a frontend (say React). A way to network between them. And then an example of calling an api call from the back to

问题 I mainly want to know how the relationship between Resource Scheduler and Container works. To give an example, now there is an MR task coming, how this task is created or passed between the above three. (Resource Manager/Resource Scheduler/NodeManager); Link to previous question 来源： https://stackoverflow.com/questions/63294017/how-does-work-the-resource-scheduler-in-resource-manager-work-with-nodemanager-a

问题 I'm running the golang code on this repo https://github.com/lizrice/containers-from-scratch/blob/master/main.go and I'm having a problem with the mount namespace. What the code should do is creating a process within its own mount namespace. So if I run the code with sudo go run main.go run /bin/bash and I create a file inside the directory mytemp , I should be able to see that file from within the new started process, but if I try to view that file moving to the rootfs directory on the host,