[Question] How to use dive with M1 and colima?

[wujek-srujek]

I build an image, let's call it new_1:

$ docker images
REPOSITORY   TAG       IMAGE ID       CREATED             SIZE
new_1        latest    f2c3c30fca2d   About an hour ago   179MB
...

and would like to dive into it, but it fails:

$ dive new_1
Image Source: docker://new_1
Fetching image... (this can take a while for large images)
Handler not available locally. Trying to pull 'new_1'...
Using default tag: latest
Error response from daemon: pull access denied for new_1, repository does not exist or may require 'docker login': denied: requested access to the resource is denied
cannot fetch image
exit status 1

What is the exact issue here, and what can I do to make it work (if anything?). It does work with:

docker save new_1 > new_1.tar
dive docker-archive://new_1.tar

that I stole from https://github.com/wagoodman/dive/issues/397#issuecomment-1123061576, but is it the only way?

[lincoln-spiteri]

This works for me

docker context list
export DOCKER_HOST=unix:///<path_to_user_dir>/.colima/default/docker.sock
dive <my_container>

The first command should give you something like:

NAME        DESCRIPTION                               DOCKER ENDPOINT                                            KUBERNETES ENDPOINT   ORCHESTRATOR
colima      colima                                    unix:///Users/lincolnspiteri/.colima/default/docker.sock
default *   Current DOCKER_HOST based configuration   unix:///var/run/docker.sock                                                      swarm

Then set your DOCKER_HOST to the colima Docker endpoint.

[wujek-srujek]

Thanks @lincoln-spiteri , It works but after I set the DOCKER_HOST issuing docker context list show the following warning: Warning: DOCKER_HOST environment variable overrides the active context. To use a context, either set the global --context flag, or unset DOCKER_HOST environment variable. which sounds like it could break some other stuff for me. It is also arguably even more complex than just exporting the tar and diving into that.

[tmaier]

Adding on @lincoln-spiteri:

You can streamline this with $ export DOCKER_HOST=$(docker context inspect --format='{{.Endpoints.docker.Host}}')

[docwhat]

If the engine is set to docker, should dive fetch the DOCKER_HOST itself?

I have the same problem with the Rancher Desktop docker app macOS, and my socket is in ~/.rd/docker.sock

I don't run the bit that needs the administrator access every startup to put the socket in /var/run/docker.sock