I am new to working with containers, and was doing the docker/vscode tutorial (https://learn.microsoft.com/en-us/visualstudio/docker/tutorials/deploy-to-cloud).
The following issue has arisen during deployment (Step 9 of tutorial):
Containers deployed to Azure Cloud Instances do not show up in the sidebar.
Instead it says: "Failed to connect. Is Docker running?" and "Error: 14 UNAVAILABLE: No connection established"
This is counterintuitiv, as deployment via VScode actually worked.
Docker seems to be correctly installed:
$ docker -v
Docker version 20.10.2, build 2291f61
and the container is running:
$ docker ps
CONTAINER ID IMAGE COMMAND STATUS PORTS
agitated-newton leopkcode/getting-started Running <IP>:<PORT>
so why are running container instances not showing up in the left sidebar of the Docker extension?
I am running VSCode on WSL2.
I can reproduce this issue, the problem is that your docker engine or Docker Desktop on Windows is not running. See Install Docker Desktop on Windows.
Once the docker desktop is running and refreshes the containers in the VS docker extension. The ACI will display in the left sidebar of the Docker extension.
As pointed out by #Nancy Xiong, the issue must have been related to the local Docker installation. The exact nature is unclear, as I had made sure that both Docker engine and Docker Desktop were installed and running. Nonetheless:
Re-installing Docker Desktop Desktop (not Docker Engine) did solve the issue.
Related
I've been running into an issue testing out a working, compliant docker environment. While Docker-CE on Ubuntu would work, getting the Docker Desktop app to work may be more viable in creating a compliant docker environment (ease of control). I run into this error when trying to pull from the Docker Desktop app:
This happens on both the corporate network and off, as well as on the VPN. There are no instances where I can successfully pull when using Docker Desktop. Using Docker on WSL on the same computer on the same network I can successfully use its full functionality. Please let me know if you have a solution to this. Thank you!
I am currently running a Debian Distro (The default one from the Microsoft Store) on WSL 2 and I am having a lot of trouble with running Docker on it. My OS currently is Windows 10 Education Insider Preview, version 2004, and the os build is 19587.1000 and I have Docker Desktop.
Now, at this point, I've literally tried everything. I have tried using the "Expose daemon on tcp://localhost:2375 without TLS" way to no result. Then, I tried enabling "Enable the experimental WSL 2 based engine" (this is also why I had to move to Windows 10 education and get docker desktop and move to this version 2004).
I have also commented out "#export DOCKER_HOST=tcp://localhost:2375" from my .bashrc.
And then since WSL does not support systemd nor systemctl, starting docker using these are useless, and thus I tried "sudo service docker start" and also "sudo /etc/init.d/docker start". But, still when I run any command in Docker in my WSL, it gives me this:
$ docker ps -a
Cannot connect to the Docker daemon at tcp://localhost:2375. Is the docker daemon running?
I just can't seem to figure out what is wrong...
I've looked up everywhere, tutorials, forums, other questions on StackOverFlow.
Most are either about Docker on Native Linux or on WSL 1 where they use the first method of exposing the daemon on tcp://localhost:2375 without TLS which is not very secure, but I didn't even get that working on mine.
Please help! It would be greatly appreciated!!
Thanks in advance!
https://github.com/docker/for-win/issues/5096
Make sure youve upgraded your wsl distro to v2 by checking wsl -l -v in windows powershell
In docker settings, Use the WSL 2 based engine & Enable WSL integration for your distro
But what finally fixed it for me was overriding the DOCKER_HOST env variable left over from using WSL1
export DOCKER_HOST=unix:///var/run/docker.sock
You can execute this line to test and then add it to your .bashrc and make sure its not getting set in .bash_profile or.profile
You should then be able to run docker ps successfully
Ok so basically I installed a clean WSL. This time I got a clean Ubuntu, and somehow it fixed the issue. My other WSL distros still won't work with this, but this clean Ubuntu does. However, as soon as I installed some stuff on it, it started breaking again. Now, I reinstalled it and now it works fine. Seems like something could be potentially conflicting with this?
Okay, I am using WSL2 + Ubuntu + Docker Desktop. What fixed the issue for me waschecking the option "Expose daemon on tcp://localhost:2375 without TLS" in Docker Desktop.
I had a similar issue on Debian, which was strange, as I had a running instance of OpenSUSE connecting to and using docker without problems.
In my case the reported error was
Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?
WSL2 Integration was enabled for both instances.
What eventually worked was the following:
From within both WSL Debian and WSL.exe - unset DOCKER_HOST
Restart Docker... (right-click on the Docker Dashboard icon in Task Bar)
Try any docker command again or just plain docker ps
There is an option for exposing the daemon on tcp://localhost:2375 without TLS, however it is unchecked by default, and I left it that way.
Enabling virtualization technology in the bios settings worked for me.
I'm really new to docker. I have installed docker on my windows 10 laptop.
Then I started docker service. Please refer below screenshots.
However it shows docker running icon of docker shows it is false.
This is out put I got in power shell opened as Admin mode.
Please support me to bring to docker working status.
I have Windows 10 with Windows Subsystem for Linux installed (Bash on Ubuntu on Windows), have Docker installed on Windows, and a Docker client running on the linux subsystem per this walkthrough. All works well, however, when I want to be able to access a volume on my default mount "/mnt/c/../". I am using the mount flags at docker launch and have tried both:
docker run -v $PWD:/mount
docker run --mount type=bind,source="$(PWD)",target=/mount
and most variations shown here.
I have reason to think this is a permissions issue. When launching from the linux subsystem, there is always one empty folder from the original source directory. When launching from windows powershell, everything is fine. The only difference between the two would be the docker client being used.
I have shared C in the docker host settings in windows, however, do I need to do something similar for the client inside of windows subsystem for linux?
Versions:
Docker client: Docker version 18.03.0-ce, build 0520e24
Docker host: Docker version 18.03.0-ce-win59 (16762)
I had the same issue with the same set-up. After a lot of trial and error and googling, here is what resolved the issue:
Change Windows password to not include special characters.
Reset credentials for docker.
Worked! Weird bug.
I'm trying to run this command :
docker daemon --insecure-registry 192.168.99.100:5000
but i'm gettin ghe following error:
exec: "dockerd": executable file not found in %PATH%
I'm using win7 and docker-toolbox 1.12.2 with VM Virtual Box.
What is the problem here?
there is a way to run this command?
That is indeed what issue 27102 report:
Docker Daemon command dockerd not found on latest stable Docker for Mac and Docker Toolbox
(this is for mac but also applies on Windows)
Docker for Mac should probably print a different message, also, we may need to check if the CLI is on the same "host" as the daemon, and print a different message based on that (as running dockerd wont work if the daemon is on a remote server).
the daemon runs in a Linux virtual machine, so you do not need to (and cannot) run it manually. It is already running of the whale is in the top bar.
Conclusion: (Aug. 2021):
I'm closing this ticket, because the current behaviour is as expected.
I think this was originally opened when the docker cli still had a daemon subcommand (during the transition from a single binary to separate binaries for the cli and daemon), which is no longer the case.
The dockerd binary, which is the docker daemon, is not available for macOS (and unlikely will be), because it's a Linux binary that (on Docker Desktop for Mac) runs inside the Docker Desktop VM.
In 2022:
I'm having this exact same issue on the most recent MacOs version (Monterey, Version 12.3.1 (21E258)).
I've uninstalled Docker & reinstalled several times, if I run docker ps or docker run hello-world as paulinechi describes, I get that same error:
docker: Cannot connect to the Docker daemon at `tcp://35.215.110.128:2375`.
Is the docker daemon running?...
Answer:
Make sure you don't have a DOCKER_HOST environment variable set; from that error, it looks like either you have a DOCKER_HOST env-var, or possibly a docker context that defines a non-standard location to connect to the daemon.
The default should be to connect with the Engine API using a unix-socket (unix:///var/run/docker.sock)
Confirmation:
I forgot I was pointing to a DOCKER_HOST on a remote machine that has since shut down.