Docker Desktop

(Intro needed about Docker Desktop)

Docker Desktop not working on Ubuntu 24.04[edit]

Docker Desktop apparently has a problem running on Ubuntu 24.04 (and Kubuntu 24.04)

You can tell because when you launch Docker Desktop, nothing happens (the dockerd daemon does not start, and the GUI does not appear).

You can also tell because if you try to do anything from the command line (e.g. docker run hello-world), or otherwise involve Docker, you will get the familiar 'Is the docker daemon running?' error output.

You can get a more accurate picture of your system status with

/opt/docker-desktop/bin/com.docker.diagnose check

Starting diagnostics

[2025-01-14T13:48:38.013167057Z][com.docker.diagnose.ipc] b6c35505-diagnose -> <HOME>/.docker/desktop/backend.sock BackendAPI
[2025-01-14T13:48:38.016784371Z][com.docker.diagnose.ipc] (32855441) b6c35505-diagnose C->S BackendAPI POST /idle/make-busy
[2025-01-14T13:48:38.018660245Z][com.docker.diagnose.ipc][W] (32855441) b6c35505-diagnose C<-S NoResponse POST /idle/make-busy (2.916439ms): Post "http://ipc/idle/make-busy": dial unix <HOME>/.docker/desktop/backend.sock: connect: connection refused
[2025-01-14T13:48:39.015923682Z][com.docker.diagnose.ipc] (32855441-2) b6c35505-diagnose C->S BackendAPI GET /idle
[2025-01-14T13:48:39.016907056Z][com.docker.diagnose.ipc][W] (32855441-2) b6c35505-diagnose C<-S NoResponse GET /idle (1.019838ms): Get "http://ipc/idle": dial unix <HOME>/.docker/desktop/backend.sock: connect: connection refused
[PASS] DD0039: are KVM user permissions configured?
[PASS] DD0018: does the host support virtualization?
[FAIL] DD0001: is the application running? Docker is not running
[FAIL] DD0017: can a VM be started? vm has not started: vm has not started
[FAIL] DD0016: is the LinuxKit VM running? prereq failed: is the application running?
[FAIL] DD0004: is the Docker engine running? prereq failed: is the LinuxKit VM running?
[PASS] DD0015: are the binary symlinks installed?
[FAIL] DD0031: does the Docker API work? prereq failed: is the Docker engine running?
[PASS] DD0013: is the $PATH ok?
[PASS] DD0034: is Context set to a Docker Desktop context?
[FAIL] DD0003: is the Docker CLI working? prereq failed: is the Docker engine running?
[FAIL] DD0038: is the connection to Docker working? prereq failed: is the Docker engine running?
[FAIL] DD0014: are the backend processes running? prereq failed: is the LinuxKit VM running?
[FAIL] DD0007: is the backend responding? prereq failed: are the backend processes running?
[FAIL] DD0009: is the vpnkit API responding? prereq failed: are the backend processes running?
[FAIL] DD0010: is the Docker API proxy responding? prereq failed: are the backend processes running?
[FAIL] DD0030: is the image access management authorized? prereq failed: is the Docker engine running?
[PASS] DD0037: is the virtiofs setup correct?
[PASS] DD0036: is the credentials store configured correctly?
[PASS] DD0033: does the host have Internet access?
[PASS] DD0039: are KVM user permissions configured?
[PASS] DD0018: does the host support virtualization?
[WARN] DD0001: is the application running? Docker is not running
[WARN] DD0017: can a VM be started? vm has not started: vm has not started
[WARN] DD0016: is the LinuxKit VM running? prereq failed: is the application running?
[WARN] DD0004: is the Docker engine running? prereq failed: is the LinuxKit VM running?
[PASS] DD0015: are the binary symlinks installed?
[WARN] DD0031: does the Docker API work? prereq failed: is the Docker engine running?
[WARN] DD0032: do Docker networks overlap with host IPs? prereq failed: does the Docker API work?

Please note the following 6 warnings:

1 : The check: is the application running?
    Produced the following warning: Docker is not running

Is the Docker Desktop application running?

2 : The check: can a VM be started?
    Produced the following warning: vm has not started: vm has not started

The Docker engine runs inside a Linux VM. Therefore we must be able to start Virtual Machines.

3 : The check: is the LinuxKit VM running?
    Produced the following warning: prereq failed: is the application running?

The Docker engine runs inside a Linux VM. Therefore the VM must be running.

4 : The check: is the Docker engine running?
    Produced the following warning: prereq failed: is the LinuxKit VM running?

The Docker engine manages all containers and images on the host. Check the dockerd.log to see why it failed to start.

5 : The check: does the Docker API work?
    Produced the following warning: prereq failed: is the Docker engine running?

If the Docker API is not available from the host then Docker Desktop will not work correctly.

6 : The check: do Docker networks overlap with host IPs?
    Produced the following warning: prereq failed: does the Docker API work?

If the subnet used by a Docker network overlaps with an IP used by the host, then containers
won't be able to contact the overlapping IP addresses.

Try configuring the IP address range used by networks: in your docker-compose.yml.
See https://docs.docker.com/compose/compose-file/compose-file-v2/#ipv4_address-ipv6_address

Please investigate the following 2 issues:

1 : The test: can a VM be started?
    Failed with: vm has not started: vm has not started

The Docker engine runs inside a Linux VM. Therefore we must be able to start Virtual Machines.

2 : The test: is the application running?
    Failed with: Docker is not running

Is the Docker Desktop application running?