ubuntu | Ubuntu Dockerfile for trusted automated Docker builds
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kandi X-RAY | ubuntu Summary
This repository contains Dockerfile of Ubuntu for Docker's automated build published to the public Docker Hub Registry.
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QUESTION
I'm working on a TUI (Text User Interface) library for C++, and I have a function for detecting the size of the console window. Is it possible for me to detect a window resize? I would prefer if it would work with any terminal emulator, but if it matters I am using Ubuntu Budgie 20.10, and my terminal emulator is Tilix.
...ANSWER
Answered 2021-Apr-25 at 23:23You can set up a signal handler for the SIGWINCH
signal, and you will get this signal whenever the terminal size changes. Note that, as with all signal handlers, any code in the signal handler must be signal-safe.
If you are using the curses library, you will get a KEY_RESIZE
key, and then check COLS
and LINES
.
QUESTION
I installed oracle db version 19c in my docker environment with the following command:
...ANSWER
Answered 2021-Jun-15 at 16:53SQL*Loader is in the image - but the docker container is separate from your host OS, so ubuntu doesn't know any of the files or commands inside it exist. Any commands inside the container should be run as docker commands. If you try this, it should connect to your running container and print the help page:
QUESTION
I have Windows 10 Pro Version 21H1 Build 19043.1052.
I have followed the guide in https://docs.microsoft.com/en-gb/windows/wsl/install-win10#step-4---download-the-linux-kernel-update-package and in Win 10 WSL won't set default 2 to get wsl. And I want to upgrade to version 2. I installed the regular Ubuntu from the Microsoft app store. And I did wsl --setdefault Ubuntu
followed by wsl --set-default-version 2
and it only gave me For information on key differences with WSL 2 please visit https://aka.ms/wsl2
. But wsl -l -v
was still showing VERSION 1.
So I went an installed Ubuntu-20.04 LTS
and now that version is showing VERSION 2 but not the regular Ubuntu
one.
How can I get them both to version 2?
...ANSWER
Answered 2021-Jun-15 at 15:47When you do --set-default-version
, you're setting the version for future distributions that you install. That doesn't convert or change any current distros you have installed. So for your existing Ubuntu
distro that is version 1, you should use the wsl --set-version
command to convert it to version 2 or revert back to version 1.
Source: https://docs.microsoft.com/en-us/windows/wsl/install-win10
QUESTION
Why kubectl cluster-info is running on control plane and not master node And on the control plane it is running on a specific IP Address https://192.168.49.2:8443 and not not localhost or 127.0.0.1 Running the following command in terminal:
- minikube start --driver=docker
😄 minikube v1.20.0 on Ubuntu 16.04 ✨ Using the docker driver based on user configuration 🎉 minikube 1.21.0 is available! Download it: https://github.com/kubernetes/minikube/releases/tag/v1.21.0 💡 To disable this notice, run: 'minikube config set WantUpdateNotification false'
👍 Starting control plane node minikube in cluster minikube 🚜 Pulling base image ... > gcr.io/k8s-minikube/kicbase...: 358.10 MiB / 358.10 MiB 100.00% 797.51 K ❗ minikube was unable to download gcr.io/k8s-minikube/kicbase:v0.0.22, but successfully downloaded kicbase/stable:v0.0.22 as a fallback image 🔥 Creating docker container (CPUs=2, Memory=2200MB) ... 🐳 Preparing Kubernetes v1.20.2 on Docker 20.10.6 ... ▪ Generating certificates and keys ... ▪ Booting up control plane ... ▪ Configuring RBAC rules ... 🔎 Verifying Kubernetes components... ▪ Using image gcr.io/k8s-minikube/storage-provisioner:v5 🌟 Enabled addons: storage-provisioner, default-storageclass 🏄 Done! kubectl is now configured to use "minikube" cluster and "default" namespace by default
- kubectl cluster-info
Kubernetes control plane is running at https://192.168.49.2:8443 KubeDNS is running at https://192.168.49.2:8443/api/v1/namespaces/kube-system/services/kube-dns:dns/proxy
...To further debug and diagnose cluster problems, use 'kubectl cluster-info dump'.
ANSWER
Answered 2021-Jun-15 at 12:59The Kubernetes project is making an effort to move away from wording that can be considered offensive, with one concrete recommendation being renaming master to control-plane. In other words control-plane
and master
mean essentially the same thing, and the goal is to switch the terminology to use control-plane
exclusively going forward. (More info in this answer)
The kubectl
command is a command line interface that executes on a client (i.e your computer) and interacts with the cluster through the control-plane
.
The IP address you are seing through cluster-info
is the IP address through which you reach the control-plane
QUESTION
This is the code I have written for the MPI's Group Communication Primitives-Brod cast example using c language try with Ubuntu system. I wrote a code for the string and variable concatenation here.
When I am compiling this code it shows error like that.(Please refer the image)
Can anyone help me to solve this?
...ANSWER
Answered 2021-Jun-15 at 12:43Change this line :
QUESTION
I am getting a bad request response to my request. I have checked with an online JSON validator my dictionary data to be correct, and everything seems fine.
My code is the following:
...ANSWER
Answered 2021-Jun-15 at 11:58You are telling your server, you are sending JSON data, but the request body is not a JSON string but a url-encoded string (because that's the default behaviour of $.ajax()
when you pass an object as data
).
Use JSON.stringify
, to pass a correct JSON body
QUESTION
I am writing a program in C language using gtk3 library. I want it to be able to receive a h264 video stream from a certain IP address (localhost) and UDP/RTP PORT (5000).
In order to do it, I am using gstreamer to both stream and receive the video.
I managed to stream the video using the following pipeline :
send.sh :
gst-launch-1.0 filesrc location=sample-mp4-file.mp4 ! decodebin ! x264enc ! 'video/x-h264, stream-format=(string)byte-stream' ! h264parse ! rtph264p
I managed to display the video in a new window using the following pipeline :
receive.sh :
gst-launch-1.0 udpsrc port=5000 caps="application/x-rtp,encoding-name=H264" ! rtph264depay ! decodebin ! videoconvert ! autovideosink
At this point, everything works fine. But now I want to receive the stream and display it inside my C/GTK program. I am using the following code (found on internet and adapted to make it compile) :
...ANSWER
Answered 2021-Jun-15 at 11:39Here is the solution I found :
Changin xvimagesink by ximagesink :
sink = gst_element_factory_make ("xvimagesink", NULL); g_assert(sink);
becomes
sink = gst_element_factory_make ("ximagesink", NULL); g_assert(sink);
Hope it will help some of you facing the same problem.
QUESTION
I have an AWS ubuntu instance with the following network interfaces:
ens5
, ip: 172.XX.XX.XX
A5TAP
, ip:192.168.233.1 (VPN)
How do I udp port forward port 10000-10200 to 192.168.233.52:10000-10200? I tried a the obvious commands below for a single port 10009, but it is not working:
...ANSWER
Answered 2021-Jun-15 at 11:24I believe what you want is the following:
QUESTION
I'm currently working on a project running a jboss backend server (server-ear:ear exploded artefact) and a java gui (java 11) as frontend.
The backend contains a java service bean which accesses a database server and throws a custom exception (extends exceptions), if the variable is not found. The GUI catches the custom exceptions with a try and catch block.
The code is build and run inside of Intellij + Maven.
If i try to execute the code following arrow pops up at runtime:
...ANSWER
Answered 2021-Jun-15 at 10:54So for anyone interested what the problem was:
Since we are using a custom logger (ServiceLoggingInvocationHandler) which try catched the exceptions of an invoke method, the catched exceptions were already wrapped with an invocation exception and were not the original exceptions. To solve the problem we needed to unwrap the exceptions again before forwarding them.
Since the logger was only used in debugging mode and only when specified the problem was only occurring for me.
QUESTION
I am trying to run a test case which basically copies a file from my machine to a mock server running in docker. The same test works fine on Mac and Ubuntu. But on Windows it's getting failed with the following error:-
...ANSWER
Answered 2021-Mar-31 at 11:29The remote path must be /
, not \
.
And the argument to createCopyCommand
cannot be Path
, as on Windows, that will translate the /
to \
.
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