Hello Guys when I run docker version
My docker compose version is : docker compose version
Docker Compose version v2.2.2
Client: Docker Engine - Community
Version: 20.10.18
API version: 1.41
Go version: go1.18.6
Git commit: b40c2f6
Built: Thu Sep 8 23:11:43 2022
OS/Arch: linux/amd64
Context: desktop-linux
Experimental: true
Cannot connect to the Docker daemon at unix:///home/tonton/.docker/desktop/docker.sock. Is the docker daemon running?
I am using ubuntu 22.04 version.
In my case:
I had installed docker desktop by apt in ubuntu20.04 before, but removed it later .
And when I try to check sudo docker images today there is the same issue.
Restarting docker, chown socket and some other strange ways don't work.
Suddenly I discover that there is no such socket file in docker/desktop/, but in the default location /var/run. Then trying to restore docker default context by docker context use default makes everything come back to normal.
So I think that the remained docker-desktop context takes the responsibility.....
I am trying to use vscode on the containers running on a remote server, but when I use 'Attach visual studio code' function I got this:
I have docker daemon running:
I am in the 'docker' group and I am able to run docker without sudo:
I am running out of solutions here could someone help me?
#Romain
This is the print out of ps aux | grep -i vscode (I just screenshot the process of my userid):
System Info:
Ubuntu 16.04.6 LTS;
vscode version:
Version: 1.60.0-insider (Universal)
Commit: 699084fdb48460c68086b85b5c08f3d39055e772;
vscode Docker extension version:
v1.15.0
I am trying to setup minikube in a VM with ubuntu desktop 20.04 LTS installed, using docker driver.
I've followed the steps here, and also taken into consideration the limitations for the docker driver (reported here), that have to do with runtime security options. And when I try to start minikube the error I get is : Failed to start host: creating host: create: creating: prepare kic ssh: copying pub key.
This is what I have done to have my brand new VM with minikube installed.
Install docker
Add my user to the docker group, otherwise minkube start would fail because dockerd runs as root (aka Rootless mode in docker terminology).
Install kubectl (that is not necessary, but I opted for this instead of the embedded kubectl in minikube)
Install minikube
When I start minikube, this is what I get:
ubuntuDesktop:~$ minikube start
😄 minikube v1.16.0 on Ubuntu 20.04
✨ Using the docker driver based on user configuration
👍 Starting control plane node minikube in cluster minikube
🔥 Creating docker container (CPUs=2, Memory=4500MB) ...
✋ Stopping node "minikube" ...
🛑 Powering off "minikube" via SSH ...
🔥 Deleting "minikube" in docker ...
🤦 StartHost failed, but will try again: creating host: create: creating: prepare kic ssh: copying pub key: docker copy /tmp/tmpf-memory-asset051825440 into minikube:/home/docker/.ssh/authorized_keys, output: lstat /tmp/tmpf-memory-asset051825440: no such file or directory
: exit status 1
🔥 Creating docker container (CPUs=2, Memory=4500MB) ...
😿 Failed to start docker container. Running "minikube delete" may fix it: creating host: create: creating: prepare kic ssh: copying pub key: docker copy /tmp/tmpf-memory-asset544814591 into minikube:/home/docker/.ssh/authorized_keys, output: lstat /tmp/tmpf-memory-asset544814591: no such file or directory
: exit status 1
❌ Exiting due to GUEST_PROVISION: Failed to start host: creating host: create: creating: prepare kic ssh: copying pub key: docker copy /tmp/tmpf-memory-asset544814591 into minikube:/home/docker/.ssh/authorized_keys, output: lstat /tmp/tmpf-memory-asset544814591: no such file or directory
: exit status 1
😿 If the above advice does not help, please let us know:
👉 https://github.com/kubernetes/minikube/issues/new/choose
I suspect that the error has to do with the security settings issues with the docker driver, but this seems to be like a dog chasing its tail: if I don't use rootless mode in docker and I attempt to start minikube with sudo (so that docker can also start up with a privileged user), then I get this:
ubuntuDesktop:~$ sudo minikube start
[sudo] password for alberto:
😄 minikube v1.16.0 on Ubuntu 20.04
✨ Automatically selected the docker driver. Other choices: virtualbox, none
🛑 The "docker" driver should not be used with root privileges.
💡 If you are running minikube within a VM, consider using --driver=none:
📘 https://minikube.sigs.k8s.io/docs/reference/drivers/none/
❌ Exiting due to DRV_AS_ROOT: The "docker" driver should not be used with root privileges.
So, or either I am missing something or minikube doesn't work at all with docker driver, which I doubt.
Here is my environment info:
ubuntuDesktop:~$ docker version
Client:
Version: 19.03.11
API version: 1.40
Go version: go1.13.12
Git commit: dd360c7
Built: Mon Jun 8 20:23:26 2020
OS/Arch: linux/amd64
Experimental: false
Server:
Engine:
Version: 19.03.11
API version: 1.40 (minimum version 1.12)
Go version: go1.13.12
Git commit: 77e06fd
Built: Mon Jun 8 20:24:59 2020
OS/Arch: linux/amd64
Experimental: false
containerd:
Version: v1.2.13
GitCommit: 7ad184331fa3e55e52b890ea95e65ba581ae3429
runc:
Version: 1.0.0-rc10
GitCommit:
docker-init:
Version: 0.18.0
GitCommit: fec3683
ubuntuDesktop:~$ minikube version
minikube version: v1.16.0
commit: 9f1e482427589ff8451c4723b6ba53bb9742fbb1-dirty
If someone has minikube working on ubuntu 20.04 and could share versions and driver, I would appreciate. with the info in minikube and docker sites I don't know what else to check to make this work.
Solution:
As I mentioned in my comment you may just need to run:
docker system prune
then:
minikube delete
and finally:
minikube start --driver=docker
This should help.
Explanation:
Although as I already mentioned in my comment, it's difficult to say what was the issue in your specific case, such situation may happen as a consequence of previous unseccessful attempt to run your Minikube instance.
It happens sometimes also when different driver is used and it is run as a VM and basically deleting such VM may help. Usually running minikube delete && minikube start is enough.
In this case, when --driver=docker is used, your Minikube instance is configured as a container in your docker runtime but apart from container itself other things like networking or storage are configured.
docker system prune command removes all unused containers, networks, images (both dangling and unreferenced), and optionally, volumes. So what we can say for sure it was one of the above.
Judging by the exact error message:
❌ Exiting due to GUEST_PROVISION: Failed to start host: creating host: create: creating: prepare kic ssh: copying pub key: docker copy /tmp/tmpf-memory-asset544814591 into minikube:/home/docker/.ssh/authorized_keys, output: lstat /tmp/tmpf-memory-asset544814591: no such file or directory
: exit status 1
I guess it could be simply clearing some cached data that helped in your case and removing broken references to non-existing files. The above message explains quite clearly what couldn't be done, namely docker couldn't copy a public ssh key to the destination minikube:/home/docker/.ssh/authorized_keys as the source file /tmp/tmpf-memory-asset544814591, it attempted to copy it from, simply didn't exist. So it's actually very simple to say what happend but to be able to tell why it happened might require diving a bit deeper in both Docker and Minikube internals and analyze step by step how Minikube instance is provisioned when using --driver=docker.
It's a good point that you may try to analyze your docker logs but I seriously doubt that you will find there the exact reason why non-existing temporary file /tmp/tmpf-memory-asset544814591 was referenced or why it didn't exsist.
minikube start --force --driver=docker fixed it for me
The issue is that the docker driver should not be used with root privileges. And by default, the docker daemon always runs as the root user. To run the docker daemon not as root user, create a Unix group called docker and add users to it. When the Docker daemon starts, it creates a Unix socket accessible by members of the docker group.
Run the following commands to fix this issue
Create the docker group if not exist
sudo groupadd docker
Add user to the docker group
sudo usermod -aG docker [user]
To activate changes to the group
newgrp docker
start minikube cluster
minikube start
This worked for me
minikube start --driver=docker --container-runtime=containerd
if you use Linux Desktop OS with docker and minikube already installed, just run
sudo usermod -aG docker $USER
and restart your computer.
It worked for me.
I was running into the same issue when I attempted to install Minikube on an Ubuntu 20.04 system.
The "docker system prune" didn't help in my case, but I figured out the cause for my issue was that /var was mounted with the nosuid option and I had to remove that and remount /var. The minikube cluster initialization then worked.
I might be too ignorant but I didn't find that info stated as a requirement.
Restarting my mac helped me.
I was getting below error earlier:
❌ Exiting due to DRV DOCKER NOT RUNNING: Found docker, but the docker service isn't running. Try restarting the docker service.
sudo apt-get update
sudo apt-get install docker-ce docker-ce-cli containerd.io
sudo systemctl enable docker
systemctl status docker
sudo systemctl start/stop docker
sudo groupadd docker
sudo usermod -aG docker user_name --- to add the user to docker group.
newgrp docker -- to activate the grp
minikube start or minikube start --driver=docker ---to start minikube
On my Raspberry Pi this problem was resolved with:
sudo usermod -aG docker $USER && newgrp docker
Try the following:
minikube delete
Then try to delete all docker images with name like k8s... and minikube:
docker rmi <container id> <container id2> <container id3>
Finally:
minikube start
On my end just a docker system prune did the job (Ubuntu).
I had a few configurations I did not want to lose on my minikube profile and it recreated the container accordinlgy and booted fine.
So before the minikube profile deletion it is something to try first.
It's worth checking to see if it's running in Docker desktop on a Mac. If it is then run the kubectl command. If that returns the commands screen then you're good to go.
I'm running on ubuntu 18.04 with docker version:
>> docker version
Client: Docker Engine - Community
Version: 19.03.6
API version: 1.40
Go version: go1.12.16
Git commit: 369ce74a3c
Built: Thu Feb 13 01:27:48 2020
OS/Arch: linux/amd64
Experimental: false
each time I reboot my machine and try to use docker (e.g docker ps), I get an error:
>> docker ps
Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?
after I run:
>> service docker stop
>> service docker start
everything is back to normal..
any ideas how to solve it?
you should run
sudo systemctl enable docker
it will configure the system to start the service at reboot
This is what I have:
suyashdew#DESKTOP-DPRQ445:~$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 16.04.2 LTS
Release: 16.04
Codename: xenial
suyashdew#DESKTOP-DPRQ445:~$ docker version
Client:
Version: 18.09.1
API version: 1.39
Go version: go1.10.6
Git commit: 4c52b90
Built: Wed Jan 9 19:35:23 2019
OS/Arch: linux/amd64
Experimental: false
Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?
I am new to *nix systems and I am trying to work on it. Please help!
Note: I have tried
sudo service docker start
* Starting Docker: docker
sudo service docker status
* Docker is not running
I have tried several ways mentioned in other threads but nothing worked. One of the ways broke the docker-ce and I had to remove it from the package and then re-install it. And it still can't fix it.
You probably can't connect because you're not the root user and you're not in the docker group. Make sure to follow the Linux post-install instructions, and don't forget to re-start your computer after adding yourself to the docker group.
You can verify whether this is the problem or not before trying all of that - does sudo docker version work?
might be a permission issue.
This are the postinstallation steps for linux:
docker post installation
you could try with sudo.
if you've the same issue with sudo, try
service docker status
and
service docker start