I've been given a Docker image stored in the gitlab container registry, registry.gitlab.com.
I have a gitlab acount, with a password, and I am able to do a docker login:
docker login registry.gitlab.com
After I do that, I no longer get an authentication error when I try to do a docker command against that registry.
And the documentation for using that registry seems clear:
Go to your project or group’s Packages and registries > Container Registry and find the image you want.
Next to the image name, select Copy.
Use docker run with the image link:
docker run [options] registry.example.com/group/project/image [arguments]
https://docs.gitlab.com/ee/user/packages/container_registry/
But when I run any kind of docker command with the group/project/image I just copied, I just get the "manifest unknown" docker error, which normally indicates that the image is missing or mis-spelled.
So, maybe gitlab is broken, or maybe the gitlab documentation is wrong, or maybe there is something wrong with that particular image, or maybe it doesn't work using docker on WSL through Docker Desktop on Win10, or maybe ... I just haven't set up something correctly.
FWIW, Docker Desktop is a Windows service/application that proxies 'docker' commands in Windows, sending them to a docker instance running on WSL. It's normally transparent. It maintains a local registry, and seems to have some way of connecting to docker hub, but I've never used it with any other registry.
I'd like to pull that image into my local registry. What should I do different?
This question already has an answer here:
MySQL container crash after /etc/mysql/my.cnf change, how to edit back?
(1 answer)
Closed 2 years ago.
Good morning.
I am currently using Docker version 19.03 on Mac OS X Catalina.
MariaDB 10.3 was installed in Docker, vim was installed to set the character-set, and /etc/mysql/my.cnf file was modified.
After modification, an attempt was made to restart to reflect, but it was not executed normally.
When I checked it with docker ps -a command, STATUS showed an Exited (1) error.
When I checked the log showing the error, I could check the following log.
unknown variable'collection-server=utf8_unicode_ci'
Stupidly there was a typo in the settings.
So I am trying to modify this setting, but there is no way to modify it because the docker container is not loaded.
docker-compose.yml is not in use.
The simplest way is to delete the Docker Container, reset it, but I don't think this is the right way.
Is there a way to modify /etc/mysql/my.cnf inside Docker Container without using docker-compose.yml?
You can use "docker config" to manage your configuration.
$ docker config --help
Usage: docker config COMMAND
Manage Docker configs
Options:
Commands:
create Create a configuration file from a file or STDIN as content
inspect Display detailed information on one or more config files
ls List configs
rm Remove one or more configuration filesRun ‘docker config COMMAND — help’ for more information on a command
You can create config and add or rm the config from the docker container. you can add configuration file to your docker container either using docker compose or using docker command.
Please check this awesome medium article which will help you to do hands on.
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.
First i just want to mention i am very new to docker.
I am using Win 10, "Docker for Windows".
I am using the default linux containers option.
I have downloaded the latest image from here,
https://github.com/camunda/docker-camunda-bpm-platform.
So now, my Docker is online, and the container + image are working. A tomcat server and a Camunda engine are online and working.
My problem is the following,
I need to do some changes and i cant find where Tomcat and Camunda are being stored. I need to edit some XML files both in the Camunda and in the Tomcat ( to setup which database to use for example ).
Can it be that it is not being stored on my local machine?
For example when i open the container with Kitematic ( Docker UI ) i can see environment variables for it, there is a SERVER_CONFIG and its value is /camunda/conf/server.xml ( this is one of the files i need to edit! but i cant find it or anything else anywhere on my local machine ).
you should access container using following command
sudo docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
5e978f353734 camunda/camunda-bpm-platform:latest "/sbin/tini -- ./cam…" 4 days ago Up 4 days
the issie
sudo docker exec -it 5e978f353734 /bin/bash
then you will see the container insie via shell command. good luck!
You may want to consider using Camunda BPM RUN, which aims to allow configuration without having to change the WAR deployment or Tomcat. Instead configuration is done as described here:
https://docs.camunda.org/manual/latest/user-guide/camunda-bpm-run/
Config files can be mounted into the docker images, but you may prefer to compose your own docker image based on the Camunda BPM Run base image.
The example here shows another approach which sets Camunda properties from outside the docker image by passing the environment variable SPRING_APPLICATION_JSON into the docker image.
https://medium.com/#robert.emsbach/anyone-can-run-camunda-bpm-on-azure-in-10-minutes-4b4055cc8e9
I'm the docker newest user. I create container by Kitematic, but why my Configure Volumes is empty, and how to add some folder?
I can use command to add volume:
docker run -it -v /home/dock/Downloads:/usr/Downloads:ro ubuntu64 /bin/bash
But how to do this by Kitematic?
There is no way at the moment
See this https://forums.docker.com/t/modifying-or-adding-volumes/1287/3
https://docs.docker.com/engine/tutorials/dockervolumes/
What U need exactly with Docker?
Docker is so complicated. On macOS exist problem with performance, need to replace bundled sync with docker-sync.
Additionally to docs look at https://github.com/veggiemonk/awesome-docker