containers

问题 I've seen a couple posts about this but they do not answer the question of "How does one pass the a host's hostname at build time to a container?" The reason I need to pass the hostname at build time (in the docker file) instead of at creation time is because I am using docker swarm and if I pass the hostname when I create the service like so I will only get one hostname for every container: $ docker service create -p <port>:<port> --hostname $HOSTNAME --replicas 4 <image> By passing the

问题 In my application setting I am connecting to db with below settings spring.jpa.hibernate.ddl-auto=none spring.datasource.driver-class-name=com.mysql.jdbc.Driver spring.datasource.url=jdbc:mysql://localhost:3306/gosallowMultiQueries=true&createDatabaseIfNotExist=true spring.datasource.username=root spring.datasource.password=root Now I have two container App and mysql. I have linked both container docker run --name app --link mysql:dbalias appimage but I am getting Communications link failure

问题 is it possible to autoscale docker containers, which contain application servers (like wildfly/tomcat/jetty/) within kubernetes ? For example at cpu & ram use or based on http requests ? If there is a build in feature for that i can't find it, or is it possible to write something like a configuration script for this ? If so where does the magic happen ? 回答1: Autoscaling of containers is not yet supported and is not part of the near term 1.0 roadmap for Kubernetes (meaning that the core team

问题 I would like two threads work like this: First thread will append values to vector Second thread will have read-only access to elements by index I can make mutex and make deep copy before second thread start reading.... But this way is really slow... How is it possible to make this without mutex? Here: STL vector and thread-safety I read that it is possible to use std::deque, but it fails like std::vector ... Where I can find append-only container, which don't realloc data? I have solved my

问题 at first I'm new here and English isn't my native language so apologize for any grammatical failures but I find this community really nice so I will try to ask my question as precise as I can. I want to add my own class object into a stl container multiset and want to sort it with my own overloaded less operator defined in my class. I really tried out several solutions but nothing really worked so I hope someone can give me some useful hints to solve it. Here is my general idea of my class

问题 Original Question I've read every page of the "book" about service containers, and I'm still baffled because things seem to randomly not work nearly every time I try to use $this->container . For example, I'm building a form in my custom bundle controller following the instructions. My controller extends the base controller as usual: namespace Gutensite\ArticleBundle\Controller; use Symfony\Bundle\FrameworkBundle\Controller\Controller; use Symfony\Component\HttpFoundation\Request; use

问题 After manually swapping components via add and remove , I invoke validate() on the container. According to the documentation, The validate method is used to cause a container to lay out its subcomponents again . It should be invoked when this container's subcomponents are modified (added to or removed from the container, or layout-related information changed) after the container has been displayed. The phrase " lay out its subcomponents again " makes me think that the container will resize

问题 Simple question I hope. I cannot find anything anywhere. How do you create a database in a Microsoft SQL Server Docker container? Dockerfile : I am looking at the following Dockerfile : FROM microsoft/mssql-server-windows-developer:latest ENV sa_password ab873jouehxaAGR WORKDIR / COPY /db-scripts/create-db.sql . # here be the existing run commnd in the image microsoft/mssql-server-windows-developer:latest #CMD ["powershell", "-Command", "$ErrorActionPreference = 'Stop'; $ProgressPreference =

问题 I start a kubernetes replication controller. When the corresponding container in the single pod in this replication controller has a gcePersistentDisk specified the pods will start very slow. After 5 minutes the pod is still in the Pending state. kubectl get po will tell me: NAME READY STATUS RESTARTS AGE app-1-a4ni7 0/1 Pending 0 5m Without the gcePersistentDisk the pod is Running in max 30 seconds. (I am using a 10 GB Google Cloud Storage disk and I know that these disks have lower

问题 What it the right way to write a wrapper class around an STL container, which is also a template (can accept a generic type T as element) and allows me to use an iterator as I would do with the STL container directly? I want to do something of the following type #include <list> #include <iostream> class MyClass{}; template<class T> class Wrapper { public: typename std::list<T>::iterator iterator; std::list<T> elements; iterator begin(){ return elements.begin(); }; iterator end(){ return