I am a beginner in docker and I am trying to run a Q&A website locally in my browser. I have found an open source container on the link https://hub.docker.com/r/zout84/askbot-docker. Here are the steps that I have done:
I have downloaded docker toolbox DockerToolbox-19.03.1.exe to be able to run docker using my Windows terminal.
Following the instructions on the above link I have run the command docker run -v /tmp/askbot:/data/ -p 8080:80 -d zout84/askbot-docker. Since I am on Windows I have replaced /tmp/askbot:/data/ by a folder I have created.
I have downloaded the container and put it a local folder that I called Docker_source. I have replaced zout84/askbot-docker by C:\Docker_source in the above docker run command
Now the error that I have is docker: invalid reference format: repository name must be lowercase.
Please, any suggestions on how to make it work?
Like the error said, The repository has to be lower case. It is called C:\Docker_source. You got a capital "D" over there. change it to a "d"
I was following this post - the reference code is on GitHub. I have cloned the repository on my local.
The project has got a react app inside it. I'm trying to run it on my local following step 7 on the same post:
docker run -p 8080:80 shakyshane/cra-docker
This returns:
Unable to find image 'shakyshane/cra-docker:latest' locally
docker: Error response from daemon: pull access denied for shakyshane/cra-docker, repository does not exist or may require 'docker login'.
See 'docker run --help'.
I tried login to docker again but looks like since it belongs to #shakyShane I cannot access it.
I idiotically tried npm start too but it's not a simple react app running on node - it's in the container and containers are not controlled by npm
Looks like docker pull shakyshane/cra-docker:latest throws this:
Error response from daemon: pull access denied for shakyshane/cra-docker, repository does not exist or may require 'docker login'
So the question is how do I run this docker image on my local mac machine?
Well this is illogical but still sharing so future people like me don't get stuck.
The problem was that I was trying to run a docker image which doesn't exist.
I needed to build the image:
docker build . -t xameeramir/cra-docker
And then run it:
docker run -p 8080:80 xameeramir/cra-docker
In my case, my image had TAG specified with it and I was not using it.
REPOSITORY TAG IMAGE ID CREATED SIZE
testimage testtag 189b7354c60a 13 hours ago 88.3MB
Unable to find image 'testimage:latest' locally for this command docker run testimage
So specifying tag like this - docker run testimage:testtag worked for me
Posting my solution since non of the above worked.
Working on macbook M1 pro.
The issue I had is that the image was built as arm/64. And I was running the command:
docker run --platform=linux/amd64 ...
So I had to build the image for amd/64 platform in order to run it.
Command below:
docker buildx build --platform=linux/amd64 ...
In conclusion your docker image platform and docker run platform needs to be the same from what I experienced.
In my case, the docker image did exist on the system and still I couldn't run the container locally, so I used the exact image ID instead of image name and tag, like this:
docker run myContainer c29150c8588e
I received this error message when I typed the name/character wrong. That is, "name1\name2" instead of "name1/name2" (wrong slash).
In my case, I saw this error when I had logged in to the dockerhub in my docker desktop. The repo I was pulling was local to my enterprise. Once i logged out of dockerhub, the pull worked.
This just happened to me because my local docker vm on macos ran out of disk space.
I just deleted some old images using docker image prune and it started working correctly again.
shakyshane/cra-docker Does not exist in that user's repo https://hub.docker.com/u/shakyshane/
The problem is you are trying to run an imagen that does not exists. If you are executing a Dockerfile, the image was not created until Dockerfile pass with no errors; so when Dockerfile tries to run the image, it can't find it. Be sure you have no errors in the execution of your scripts.
The simplest answer can be the correct one!.. make sure you have permissions to execute the command, use:
sudo docker run -p 8080:80 shakyshane/cra-docker
In my case, I didn't realise there was a difference between docker run and docker start, and I kept using the run command when I should've been using the start command.
FYI, run is for building and creating the docker container, start is to just start a stopped container
Use -d
sudo docker run -d -p 8000:8000 rasa/duckling
learn about -d here
sudo docker run --help
At first, i build image on mac-m1-pro with this command docker build -t hello_k8s_world:0.0.1 ., when is run this image the issue appear.
After read Master Yi's answer, i realize the crux of the matter and rebuild my images like this docker build --platform=arm64 -t hello_k8s_world:0.0.1 .
Finally，it worked.
I apologize if this a silly question but when I type inside PowerShell of Window 10:
docker run -it -v C:\Users\Bob\Documents\test:/usr/python -w /usr/python
bob/python
It works just fine and I receive the following prompt:
root#63eef6ac2b96:/usr/python#
To avoid repeating the command over and over, I build a makefile that has the following command
docker:
docker run -it -v C:\Users\Bob\Documents\test:/usr/python -w /usr/python bob/python
when I try to execute
make docker
I receive the following error
PS C:\Users\Bob\documents\test> make docker
docker run -it -v C:\Users\Bob\Documents\test:/usr/python -w /usr/python
bob/python
c:\Program Files\Docker\Docker\Resources\bin\docker.exe: Error response from
daemon: the working directory 'C:/MinGW/msys/1.0/python' i
s invalid, it needs to be an absolute path.
See 'c:\Program Files\Docker\Docker\Resources\bin\docker.exe run --help'.
make.exe": *** [docker] Error 125
Any suggestion is greatly appreciated.
You do not have to use a Makefile. Docker compose is what you are looking for.
In brief, you need to create a docker-compose.yml file and inside it describe all the desired steps. I am not aware of your full setup but I will try to provide a skeleton for your docker-compose file.
version: '3.7'(depends on your docker engine version)
services:
python_service(add a name of your choice):
build: build/ (The path of image's Dockerfile)
volumes:
- C:\Users\Bob\Documents\test:/usr/python
working_dir: /usr/python
In the snippet above:
-v flag replaced with volumes section
-w flag replced with working_dir section
How to use:
Now that your docker-compose file is ready, you need to use it. So you do not need to remember/repeat the docker run command, you will simple execute docker-compose up in the directory where your compose file is located and you will have your container up and running.
Note that this is a simple example on how to use docker-compose. It is a powerful feature allowing to start containers from multiple images, creating networks and much more. I would recommend you to read the official documentation for additional information.
I am building dockerfile to create an image where I want to build a package. I want to pull this package inside the docker image. I need to do a git clone for that. I saw the discussion on this post :
Using SSH keys inside docker container
Based on that, here is the content in my Dockerfile :
ENV SSH_HOME /Users/myid
ADD $SSH_HOME/.ssh/id_rsa /root/.ssh/id_rsa
RUN echo " IdentityFile ~/.ssh/id_rsa" >> /etc/ssh/ssh_config
When I run docker build, I am getting an error due to relative path. If I provide absolute path, it says the location is outside of context. Any idea how to fix this? I am running on Mac OSX 10.
With the script above, I am getting the following error :
ADD failed: stat /var/lib/docker/tmp/docker-builder6164655/Users/myid/.ssh/id_rsa: no such file or directory
Looks like it might be related to this bug here
The broken example is very similar to your path problem:
# Dockerfile
FROM ubuntu:14.04
COPY start.sh /start.sh
# comes back with:
stat /var/lib/docker/aufs/mnt/e89417ccaafbc91c3f930b56819427f83b3f2d3b3a246fbd6b48c9abcc7233f6/start.sh: no such file or directory
I'd try
updating to the most recent docker
restarting your docker engine
I am not sure what protocol does the "docker pull" or the "docker push " command use. When I try to access an image from a remote repository using the following convention
"docker pull http://my-repo/image-name:tag"
It fails with
http://my-repo/image-name:tag is not a valid repository/tag
But the following command runs with no issues
"docker pull my-repo/image-name:tag"
I have a requirement that I need the "http://"prefix in the repo-name. How can this be achieved?
Usage: docker pull [OPTIONS] NAME[:TAG] | [REGISTRY_HOST[:REGISTRY_PORT]/]NAME[:TAG]
According to this, docker uses https by default, unless your private repo allows otherwise.
In the same docs you'll find
A registry path is similar to a URL, but does not contain a protocol
specifier (https://).
Explicitly prefixing http:// on your docker pull command is not a valid syntax.