How to remove a snap application (docker) completely - docker

I made the mistake of installing Docker via Snap... Once I realised that snap hadn't permissions to run in my working directory (on a different partition), I removed it. Now I can't use docker after I've installed it via apt-get.
Please help.
I've done sudo snap remove docker but when I sudo apt install docker and run via docker, I get bash: /snap/bin/docker: No such file or directory

The command you are looking for is:
sudo apt install docker.io
i.e it's docker.io not just docker
On Ubuntu, the package docker is described as a "System tray for KDE3/GNOME2 applications", which is probably not what you want!

I had the same problem. This works for me.
sudo snap remove docker
sudo reboot
the point is to restart the instance or terminal.
I hope this method can help

I did the same and just restarting the instance fixed it.

The problem is simply that your bash shell caches the locations of known executables, in order to avoid having to scan through your executables search path (that is, the directories listed in $PATH) every time you type a command. Because you have removed the executable from one directory (/snap/bin) and added it to another directory (/usr/bin), this cache is now out of date. This means that it will look in the wrong location if you try to invoke the executable simply by typing docker rather than its full path.
It is possible to fix it simply by starting a new bash shell, for example open a new terminal window and type the command in there.
Alternatively if you wish to refresh the cache in the terminal session that you are already using, type:
hash -r
It is not necessary to restart your computer (although this would also work).

Related

Composer Docker image won't run at all

I'm attempting to learn how to create a Laravel Docker image by following a tutorial on DigitalOcean using WSL. Following the instructions on the Docker Hub page, however, yields an error:
❯ docker run --rm --interactive --tty -v $(pwd):/app composer install
Loading composer repositories with package information
Updating dependencies (including require-dev)
Package operations: 94 installs, 0 updates, 0 removals
- Installing voku/portable-ascii (1.4.10): Failed to download voku/portable-ascii from dist: Could not delete /app/vendor/voku/portable-ascii/src/voku/helper:
Now trying to download from source
- Installing voku/portable-ascii (1.4.10):
[RuntimeException]
Could not delete /app/vendor/voku/portable-ascii/src/voku/helper:
install [--prefer-source] [--prefer-dist] [--dry-run] [--dev] [--no-dev] [--no-custom-installers] [--no-autoloader] [--no-scripts] [--no-progress] [--no-suggest] [-v|vv|vvv|--verbose] [-o|--optimize-autoloader] [-a|--classmap-authoritative] [--apcu-autoloader] [--ignore-platform-reqs] [--] [<packages>]...
How can I diagnose what I'm doing wrong?
It turns out that the underlying problem had nothing to do with Docker at all. In fact, Composer was trying to tell me what the problem was all along, but I dismissed it as just a symptom of a deeper issue:
[RuntimeException]
Could not delete /app/vendor/voku/portable-ascii/src/voku/helper:
This message was the crux of it all. I noticed that the directory mentioned, [...]/helper, was empty, so I tried to remove it by hand with rmdir. Instead, I got a No such file or directory error message. I attempted many other was to kill this directory, the entire project directory with rm -rf ~/laravel-app from the home folder, etc. Nothing worked.
Some digging around on the internet suggested that it could be an NTFS corruption if I was running into this issue on Windows. Since I am, indeed, attempting this on WSL (Windows Subsystem for Linux), I gave their suggested fix a try: running chkdsk /F in CMD/PowerShell. A reboot was necessary to complete this task, but after getting everything back up and trying those first few tutorial steps again, I was able to get composer to install the Laravel dependencies without a hitch.
Bottom line: If you run into this sort of issue on WSL, please try running chkdsk /F and reboot. You might just have a similar file system corruption.
We have two possibilities for this error:
1 - You did not execute the command inside the directory :
cd ~/laravel-app
2 - I'm sure there is an internal proxy that is blocking the download of packages.

Dockerd with Chocolatey

I am using Chocolatey to install Docker.
When I originally run the following command:
choco install docker
and try to run the "docker --version" command, everything goes as expected.
Docker version 17.10.0-ce, build f4ffd25
When I try to run "dockerd" command, it shows as not being part of my path.
'dockerd' is not recognized as an internal or external command,
Looking at the PATH variable, and navigating to where Chocolatey stores the executables, dockerd.exe is not present while docker.exe is. Am I missing something in instructing Chocolatey in adding dockerd?
The reason I need the dockerd executable is so that I can limit the number of concurrent downloads, as shown in the Docker documentation.
This is a decision that the package maintainer(s) for Docker have made. If you have a look here:
https://chocolatey.org/packages/docker#files
You will see that there is a dockerd.exe.ignore file. This file is used to instruct Chocolatey to explicitly not create what is referred to as a shim file, which would make it work from the command line, in the same way as Docker does.
My best suggestion would be to reach out to the maintainers of that package to ask them why this was done, and to perhaps get it changed. You can do this by clicking on the Contact Maintainers link on this page:
https://chocolatey.org/packages/docker
As a workaround, you could add the following path to your Windows PATH environment variable:
C:\ProgramData\chocolatey\lib\docker\tools\docker
Which would allow it to work.

`docker-credential-gcloud` not in system PATH

After the latest updates to gcloud and docker I'm unable to access images on my google container repository. Locally when I run: gcloud auth configure-docker as per the instructions after updating gcloud, I get the following message:
WARNING: `docker-credential-gcloud` not in system PATH.
gcloud's Docker credential helper can be configured but it will not work until this is corrected.
gcloud credential helpers already registered correctly.
Running which docker-credential-gcloud returns docker-credential-gcloud not found.
I have no other gcloud-related path issues and for the life of me can't figure out how to install/add docker-credential-gcloud to path. Here's what I have installed (shown via gcloud version):
Google Cloud SDK 197.0.0
beta 2017.09.15
bq 2.0.31
container-builder-local
core 2018.04.06
docker-credential-gcr
gsutil 4.30
I also have Docker CE Version 18.03.0-ce-mac60 (23751).
Here's my $PATH:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin
I also ran source /usr/local/Caskroom/google-cloud-sdk/latest/google-cloud-sdk/path.zsh.inc on original gcloud install.
Notice: All docker-credential-gcr below can be replaced with docker-credential-gcloud. I think it is just different versions of gcloud, I might be wrong.
I used Homebrew Cask to install gcloud too. I installed docker-credential-gcr with
$ gcloud components install docker-credential-gcr
And then like you said, which docker-credential-gcr doesn't gave you anything.
So I ran which gcloud to find there is a symlink to gcloud in /usr/local/bin. This symlink is created by Homebrew when you installed gcloud at first place. Now docker-credential-gcr wasn't installed by Homebrew but by gcloud itself, so there isn't a symlink.
I called readlink /usr/local/bin/gcloud and found out gcloud is installed in /usr/local/Caskroom/google-cloud-sdk/latest/google-cloud-sdk/bin/.
Then:
$ ls /usr/local/Caskroom/google-cloud-sdk/latest/google-cloud-sdk/bin
There you should see docker-credential-gcr listed there.
I simply linked it to /usr/local/bin:
$ ln -s \
/usr/local/Caskroom/google-cloud-sdk/latest/google-cloud-sdk/bin/docker-credential-gcr \
/usr/local/bin/
Then run:
$ docker-credential-gcr configure-docker
It should succeed.
Just had the same issue on Windows, running Docker with Linux containers, Docker engine v19.03.8. Using docker compose. I do not use gcloud for my dockerfiles...
DT1001 dockerpycreds.errors.InitializationError:
docker-credential-gcloud not installed or not available in PATH
Option 1: Edit the docker configuration file and remove all gcloud entries from there.
Windows c:/Users/<your account>/.docker/config.json
Linux & MacOS ~/.docker/config.json
Option 2: Go to Troubleshoot -> Reset to factory defaults.
After this my docker compose was creating containers and running the images without any issues.
On MacOS
Step 1:
Install gcloud and docker-credential-gcr,
following this tutorial
Step 2:
$ ln -s /usr/local/google-cloud-sdk/bin/docker-credential-gcr /usr/local/bin/docker-credential-gcloud
Step 3:
$ rm -rf ~/.docker
Step 4:
$ docker-compose build --pull
Finished!
Never found a way to directly resolve the docker-credential-gcloud issue, but the following got me up and running again. WARNING: the following will delete all your existing docker images and install a bunch of gcloud utilities:
gcloud components install docker-credential-gcr,
Restart the terminal completely
docker-credential-gcr configure-docker.
screen ~/Library/Containers/com.docker.docker/Data/com.docker.driver.amd64-linux/tty
umount /var/lib/docker/overlay2
rm -rf /var/lib/docker
Restart the terminal completely.
The new version of google-cloud-sdk has only docker-credential-gcr but not docker-credential-gcloud anymore. On the other hand one of my python packages always requested docker-credential-gcloud.
The solution was to symlink docker-credential-gcloud to docker-credential-gcr:
ln -s /path/to/google-cloud-sdk/bin/docker-credential-gcr /usr/local/bin/docker-credential-gcloud
ls -l /usr/local/bin | grep docker should now print:
...
docker-credential-gcloud -> /path/to/google-cloud-sdk/bin/docker-credential-gcr
...
Usually, this error indicates that your $PATH variable has been clobbered by a package or program you have recently installed so that the Google Cloud SDK can't be found.
$PATH is altered by many programs when they install by altering ~/.profile, ~/.bash_profile or ~/.bashrc or their non-bash equivalents. With a bad $PATH, Google Cloud SDK is configured in docker but can't be seen as executables so we get this error. This assumes you have used the Google Cloud SDK in the past, but if gcloud is configured with your docker then you probably have. Don't reinstall gcloud or disable it, you already have it on your system and that is fine.
The solution then is to fix your $PATH, not to install anything.
echo $PATH
This should be a pretty long : delimited list of directories that your files are in. Do you see a google-cloud-sdk/bin in the string? Is the string way too short given all the trouble you've gotten into in your life on this computer? You use NVM but it is missing? Use Homebrew but it is missing? Try brew from the command line, does it work?
If the answer is "no" to any of the above, inspect the files above to see if there are any new entries at the bottom of each that might have broken things. Did you just install anything new?
Something is clobbering your $PATH and you need to figure out what that is. For me it is usually something to do with Anaconda Python via the conda init command. For you it might be nvm or something else. Figure out what it is and fix the problem. Don't start over with a new $PATH and install the same stuff over again or disable gcloud authentication.
It really seems to be something with the Homebrew Cask. I uninstalled the cask and then reinstalled the Google Cloud SDK by manually downloading the tar ball and running the packaged install script as described there.
Now docker-credential-gcloud is in my path:
$ which docker-credential-gcloud
/Users/moritz/google-cloud-sdk/bin/docker-credential-gcloud
I can't figure out what Google is trying to achieve here. On Linux there is docker-credential-gcloud and on Windows there is docker-credential-gcr.exe, and then there is docker-credential-gcloud.cmd which calls gcloud auth docker-helper. This is kind of a nightmare if you're trying to write portable build scripts or gradle rules because not everything seems capable of finding and calling docker-credential-gcloud.cmd when you exec docker-credential-gcloud... it might work from the dos prompt, but in general doesn't work.
After a ton of fooling around with .bat scripts, cygwin scripts, .cmd scripts and so forth, I found the best solution was to go into the gcloud installation and just copy docker-credential-gcr.exe docker-credential-gcloud.exe ... not a very satisfying solution, but is the only thing I found that would do the trick.
I got the issue when I tried to SSH from Google Cloud Build into an Engine VM Instance, so I had
steps:
- name: 'gcr.io/cloud-builders/gcloud'
args: ['compute', 'ssh',
'--project', '$PROJECT_ID',
'--zone', 'asia-southeast1-b',
'--strict-host-key-checking=no',
'username#instance-1',
'--command' ,'sh start.sh'
My start.sh
#!/bin/sh
echo "Started: $(date --iso-8601=seconds)"
docker pull gcr.io/aaa/bbbc/cccc
echo "Finished: $(date --iso-8601=seconds)"
The issue was How to set PATH when running a ssh command?
https://unix.stackexchange.com/questions/332532/how-to-set-path-when-running-a-ssh-command
So I just faced the same problem where I am trying to pull an image from GCR to an GCP instance and want to share my solution.
I ran gcloud auth configure-docker and got the warning:
WARNING: `docker-credential-gcloud\` not in system PATH.
gcloud's Docker credential helper can be configured but it will not work until this is corrected.
I applied the accepted answer for this thread and ran gcloud components install docker-credential-gcr and got a long error:
ERROR: (gcloud.components.install) You cannot perform this action because this Cloud SDK installation is managed by an external package manager.
Please consider using a separate installation of the Cloud SDK created through the default mechanism described at: https://cloud.google.com/sdk/
When no solution was working, I uninstalled the Google provided google-cloud-sdk package that was installed via snap and instlled with distro specifice package manager, for me that is apt-get as instructed in the Installing Google Cloud SDK: Installation options page and re-ran the gcloud auth configure-docker and this time it solved my problem.
In my case the problem was due to how WSL 1 works with Docker on Windows. At first I only installed and initialized gcloud in WSL Ubuntu, not in Windows. However as Docker daemon is actually run by Windows, you need to install gcloud for Windows as well (and don't forget to run all of the inits and authorizations there).
On Windows 10/11, you need to ensure that C:\Users\USERNAME\AppData\Local\Google\Cloud SDK\google-cloud-sdk\bin\ is added to your system $PATH environment variable. It may not have been added if the Google Cloud SDK was not able to add it during GCloud installation. So add it manually like this:
Windows Task Bar ➔ Press the search icon 🔍 or the search bar
Type "environment" ➔ and click on "Edit the System Environment Variables" (ensure that you have Administrator access)
At the bottom of the dialog, click the Environment Variables... button
System Variables ➔ click Path ➔ Edit... ➔ New ➔ paste in C:\Users\USERNAME\AppData\Local\Google\Cloud SDK\google-cloud-sdk\bin\ (replace "USERNAME" with your username)
Close and restart any open Command Prompt windows.
Then verify on the Git Bash for Windows console:
Optional: Note that the AppData folder is hidden by default, so you may want to unhide AppData first, to see its contents.
Restart the Git Bash Terminal window
echo $PATH ➔ This should print a long string that contains: :/c/Users/USERNAME/AppData/Local/Google/Cloud SDK/google-cloud-sdk/bin
where docker-credential-gcloud ➔ This should print C:\Users\USERNAME\AppData\Local\Google\Cloud SDK\google-cloud-sdk\bin\docker-credential-gcloud.cmd

Windows doesn't recognize Docker command

I already installed Docker for windows. when I type docker --version command in Command prompt, it doesn't recognize it at all.
The message will be this:
'docker' is not recognized as an internal or external command,
operable program or batch file.
Did I miss something ?
I had installed Docker 18.06.1-ce version on my Windows 10 machine and faced the similar issue, even though the docker was added the Windows %PATH%.
I moved the docker path to the bottom and that solved my problem.
I restarted the system, it worked, maybe we can say that a restart is required.
You need to start the docker first if you have not and then open powershell.
In the powershell, try to run docker commands.
I installed docker Docker version 19.03.13 build 4484c46d9d, in Windows 10 pro 1903.
I was facing the same issue, then I just renamed 'com.docker.cli' to 'docker' and set the environment variable to 'C:\Program Files\Docker\Docker\resources\bin'
Problem Resolved.
Refer the image:
https://drive.google.com/file/d/1sZwx4udOzJeITV2RDGQKlsOt_TF4Wq2N/view?usp=sharing
https://drive.google.com/file/d/1DpW2DR2n_jCGezwrXuhNtXpSTBWmEDJk/view?usp=sharing
Renaming 'com.docker.cli' to 'docker' helped me finally get windows powershell and cmd terminals to recognize the docker command.
Add docker to PATH variable & refreshenv to keep using the same command prompt
If you've installed using docker toolbox the install path "C:\Program Files\Docker Toolbox"
Manually using Environmental Variable > Path (add docker path here)
Using Command Line
For temporary use set PATH=%PATH%;C:\Program Files\Docker Toolbox
Make sure to take a back up of PATH by echo %PATH% before doing this
For permanent change setx PATH=%PATH%;C:\Program Files\Docker Toolbox
docker: command not found
Windows 7: Just set the path of docker in system variable
Step:1
[Click on path -> edit-> paste the docker location]
Step:2 [Paste the docker location]
In my case C:\Program Files\Docker Toolbox.
now check $ docker version
Make sure the docker.exe path (C:\Program Files\Docker\Docker\resources\bin) is added to the PATH variable.
You can check it as follows:
ECHO %PATH%
The docker path had to be appended at the end of the PATH in my case. After that docker cmd was recognized.
Run as administrator worked for me, both powershell and bash on windows. I did not need to restart.
I checked environment variables and noticed that docker path is as the following path in which "R" in resources uppercase. I fixed the case and everything worked as expected
Path: "C:\Program Files\Docker\Docker\Resources\bin"
Just Restart the system, it is always good practice to restart the system when you install or uninstall any application. Hope this works :)
For those who are facing docker issue on VS Code
I was trying on VS Code Terminal after installation. Restarted and was still facing issue.
Then I tried with fresh terminal of Command Prompt -- it worked!
After that it also working fine on vs code.
In VS Code - close all terminals and open fresh terminal
and try test command:
docker --version
2022 - Windows 11
Add these paths to the PATH variable.
C:\Program Files\Docker\Docker\resources\bin
C:\ProgramData\DockerDesktop\version-bin
Docker PATH variable Windows 11:
You need to restart the system after installation. It worked for me.
Try to install GIT bash and then run this command on it for Windows:
base=https://github.com/docker/machine/releases/download/v0.16.0 &&
mkdir -p "$HOME/bin" &&
curl -L $base/docker-machine-Windows-x86_64.exe > "$HOME/bin/docker-machine.exe" &&
chmod +x "$HOME/bin/docker-machine.exe"
Click Here.
there is some issues with PowerShell or new version of docker due to which I was facing the same issue but then I went to this page and got way to run it.
PS: GIT bash is required.
If you have installed Docker Toolbox in your windows, go and add the environment variable.
PATH = "location of folder that contains docker-machine"
I also face a problem with the installation and running docker. I'm not sure you how did you install docker. I tried this way. I've downloaded the docker toolbox (https://github.com/docker/toolbox/releases) which comes up with docker,docker-machine. Oracle Virtual box which is pretty much enough to start docker locally.Please make sure you have git bash installed in your local. Once the toolbox installation is done click the icon generated on the desktop . Make sure this icon target to your Git bash.exe (you can verify this by right click on icon and find target). and verify docker version
For me, I had to ensure the check box Enable Hyper-V Windows Features is checked as I was installing.
I just wanted to have client installed, without the engine. So earlier, as I was installing, I unchecked that option. And after successful installation, I get the error - windows does not recognize docker.
But now that reinstalled with the checkbox checked, things are working fine now.
I noticed that running docker commands before startup causes this issue, but ensuring that docker is running and executing the commands after, they are then recognised.
I facing the same issue when I try to run docker -v in Vscode Terminal after install it. I try to use cmd and git bash it work fine. Restart your vscode will solve it
Unfortunately, After many tries and restarts, I uninstalled docker and Re-installed it again, and I had to build all things again.
I faced the same problem, them I tried in Powershell which works someHo
Download "docker-machine-Windows-x86_64.exe" from: https://github.com/docker/machine/releases
Rename "docker-machine-Windows-x86_64.exe" to "docker-machine.exe".
Copy "docker-machine.exe" to path C:\Program Files\Docker\Docker\resources\bin.
just add this path in your "Path" inside env variables inside windows
C:\Program Files\Docker\Docker\resources\bin
then restart your gitbash or cmd or ...
everything goes well after that !
*just add in your environmental Path this syntax if you did like (install docker in c drive) me, most probably it would work, for me, this passed well.
(note: if you going to call RefreshEnv.cmd or RefreshEnv
through your CMC with Chocolatey, this path would not be created for you, and you have to do it manualy in Windows 10 operating system).
C:\Program Files\Docker\Docker\resources\bin
In my case, I switched to the windows command prompt instead of the VScode terminal.

Docker run hello-world not working

I've installed Docker following exactly the documentation on the website but when I try to run docker run hello-world, I get the following output from the terminal:
Saved file tree to doc-filelist.js
Copied JS to doc-script.js
Compiled CSS to doc-style.css
Does anybody have an idea what is going wrong?
Is it possible that you have docker.js installed locally?
The output from your command looks like the docker.js docker executable is called instead of the Docker container one.
The log messages that you showed can be found in the docker.js documentation, it looks like you're running that instead of the one you want.
If this is the issue run npm uninstall -g docker
I was experiencing the same issue, and it turned out to be caused by running nvm (node version manager). When I used nvm to run Node, Docker was not recognized. However, when I removed nvm, Docker worked as expected. I'm sure there's a workaround to make nvm and Docker work together, and I'll look into that later so I can continue using both tools.

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