Playbook Install Error

[BEMORLDEV]

I had run these playbooks in the past and was successful getting everything to install. I recently wiped my RPi-CM4 and was working on a fresh install, but keep running into small issues I hadn't seen previously using the same physical hardware.

Currently running into some kind of Docker issue...

 #ansible-playbook main.yml

PLAY [Configure Internet Pi.] ********************************************************************************************************************************************************************************************************************************************************************************************

TASK [Gathering Facts] ***************************************************************************************************************************************************************************************************************************************************************************************************
ok: [192.168.40.6]

TASK [Load configuration (with defaults from example file).] *************************************************************************************************************************************************************************************************************************************************************
ok: [192.168.40.6] => (item=example.config.yml)
ok: [192.168.40.6] => (item=config.yml)

TASK [Ensure apt cache is up to date.] ***********************************************************************************************************************************************************************************************************************************************************************************
ok: [192.168.40.6]

TASK [Ensure pacman cache is up to date] *********************************************************************************************************************************************************************************************************************************************************************************
skipping: [192.168.40.6]

TASK [Check if Docker is already present.] *******************************************************************************************************************************************************************************************************************************************************************************
ok: [192.168.40.6]

TASK [Download Docker install convenience script.] ***********************************************************************************************************************************************************************************************************************************************************************
changed: [192.168.40.6]

TASK [Run Docker install convenience script.] ****************************************************************************************************************************************************************************************************************************************************************************
changed: [192.168.40.6]

TASK [Ensure Docker is started.] *****************************************************************************************************************************************************************************************************************************************************************************************
ok: [192.168.40.6]

TASK [Ensure dependencies are installed (Debian).] ***********************************************************************************************************************************************************************************************************************************************************************
changed: [192.168.40.6]

TASK [Ensure dependencies are installed (Archlinux).] ********************************************************************************************************************************************************************************************************************************************************************
skipping: [192.168.40.6]

TASK [Ensure user is added to the docker group: pi] *******************************************************************************************************************************************************************************************************************************************************************
changed: [192.168.40.6]

TASK [Reset connection so docker group is picked up.] ********************************************************************************************************************************************************************************************************************************************************************

TASK [Gather package facts.] *********************************************************************************************************************************************************************************************************************************************************************************************
skipping: [192.168.40.6]

TASK [Add Buster backports apt key.] *************************************************************************************************************************************************************************************************************************************************************************************
skipping: [192.168.40.6] => (item=04EE7237B7D453EC)
skipping: [192.168.40.6] => (item=648ACFD622F3D138)
skipping: [192.168.40.6] => (item=0E98404D386FA1D9)
skipping: [192.168.40.6] => (item=6ED0E7B82643E131)
skipping: [192.168.40.6]

TASK [Add Buster backports for fixed libseccomp2.] ***********************************************************************************************************************************************************************************************************************************************************************
skipping: [192.168.40.6]

TASK [Install >libseccomp2.4.4 to fix 32-bit OS issue.] ******************************************************************************************************************************************************************************************************************************************************************
skipping: [192.168.40.6]

TASK [Synchronize internet-monitoring directory.] ************************************************************************************************************************************************************************************************************************************************************************
changed: [192.168.40.6]

TASK [Ensure internet-monitoring directory is not a Git repository.] *****************************************************************************************************************************************************************************************************************************************************
ok: [192.168.40.6]

TASK [Copy templated internet-monitoring files into place.] **************************************************************************************************************************************************************************************************************************************************************
changed: [192.168.40.6] => (item={'src': 'docker-compose.yml.j2', 'dest': 'docker-compose.yml'})
changed: [192.168.40.6] => (item={'src': 'grafana-config.monitoring.j2', 'dest': 'grafana/config.monitoring'})
changed: [192.168.40.6] => (item={'src': 'prometheus.yml.j2', 'dest': 'prometheus/prometheus.yml'})
changed: [192.168.40.6] => (item={'src': 'prometheus-pinghosts.yaml.j2', 'dest': 'prometheus/pinghosts.yaml'})

TASK [Ensure internet-monitoring environment is running.] ****************************************************************************************************************************************************************************************************************************************************************
fatal: [192.168.40.6]: FAILED! => {"actions": [{"id": "nginx-proxy", "status": "Pulling", "what": "image"}, {"id": "grafana", "status": "Pulling", "what": "image"}, {"id": "prometheus", "status": "Pulling", "what": "image"}, {"id": "ping", "status": "Pulling", "what": "image"}, {"id": "speedtest", "status": "Pulling", "what": "image"}, {"id": "nodeexp", "status": "Pulling", "what": "image"}], "changed": false, "cmd": "/usr/bin/docker compose --ansi never --progress json --project-directory /home/pi/internet-monitoring up --detach --no-color --quiet-pull --no-build --", "containers": [], "images": [], "msg": "Error when processing nginx-proxy: Get "https://registry-1.docker.io/v2/\": dial tcp: lookup registry-1.docker.io on [::1]:53: read udp [::1]:34172->[::1]:53: read: connection refused\nError when processing grafana: Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?\nError when processing prometheus: Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?\nError when processing ping: Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?\nError when processing speedtest: Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?\nError when processing nodeexp: Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?\nGeneral error: Error response from daemon: Get "https://registry-1.docker.io/v2/\": dial tcp: lookup registry-1.docker.io on [::1]:53: read udp [::1]:34172->[::1]:53: read: connection refused", "rc": 1, "stderr": "{"id":"nginx-proxy","text":"Pulling"}\n{"id":"grafana","text":"Pulling"}\n{"id":"prometheus","text":"Pulling"}\n{"id":"ping","text":"Pulling"}\n{"id":"speedtest","text":"Pulling"}\n{"id":"nodeexp","text":"Pulling"}\n{"id":"nginx-proxy","text":"Error","status":"Get \"https://registry-1.docker.io/v2/\\\": dial tcp: lookup registry-1.docker.io on [::1]:53: read udp [::1]:34172-\u003e[::1]:53: read: connection refused"}\n{"id":"grafana","text":"Error","status":"Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?"}\n{"id":"prometheus","text":"Error","status":"Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?"}\n{"id":"ping","text":"Error","status":"Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?"}\n{"id":"speedtest","text":"Error","status":"Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?"}\n{"id":"nodeexp","text":"Error","status":"Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?"}\n{"error":true,"message":"Error response from daemon: Get \"https://registry-1.docker.io/v2/\\\": dial tcp: lookup registry-1.docker.io on [::1]:53: read udp [::1]:34172-\u003e[::1]:53: read: connection refused"}\n", "stderr_lines": ["{"id":"nginx-proxy","text":"Pulling"}", "{"id":"grafana","text":"Pulling"}", "{"id":"prometheus","text":"Pulling"}", "{"id":"ping","text":"Pulling"}", "{"id":"speedtest","text":"Pulling"}", "{"id":"nodeexp","text":"Pulling"}", "{"id":"nginx-proxy","text":"Error","status":"Get \"https://registry-1.docker.io/v2/\": dial tcp: lookup registry-1.docker.io on [::1]:53: read udp [::1]:34172-\u003e[::1]:53: read: connection refused"}", "{"id":"grafana","text":"Error","status":"Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?"}", "{"id":"prometheus","text":"Error","status":"Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?"}", "{"id":"ping","text":"Error","status":"Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?"}", "{"id":"speedtest","text":"Error","status":"Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?"}", "{"id":"nodeexp","text":"Error","status":"Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?"}", "{"error":true,"message":"Error response from daemon: Get \"https://registry-1.docker.io/v2/\": dial tcp: lookup registry-1.docker.io on [::1]:53: read udp [::1]:34172-\u003e[::1]:53: read: connection refused"}"], "stdout": "", "stdout_lines": []}

PLAY RECAP ***************************************************************************************************************************************************************************************************************************************************************************************************************
192.168.40.6 : ok=12 changed=6 unreachable=0 failed=1 skipped=6 rescued=0 ignored=0

[BEMORLDEV]

$ docker --version
Docker version 28.1.1, build 4eba377

$ sudo apt-get install docker-compose-plugin

$ docker compose version
Docker Compose version v2.35.1

TASK [Ensure internet-monitoring environment is running.] ****************************************************************************************************************************************************************************************************************************************************************
fatal: [192.168.40.6]: FAILED! => {"actions": [{"id": "prometheus", "status": "Pulling", "what": "image"}, {"id": "nginx-proxy", "status": "Pulling", "what": "image"}, {"id": "speedtest", "status": "Pulling", "what": "image"}, {"id": "ping", "status": "Pulling", "what": "image"}, {"id": "nodeexp", "status": "Pulling", "what": "image"}, {"id": "grafana", "status": "Pulling", "what": "image"}], "changed": false, "cmd": "/usr/bin/docker compose --ansi never --progress json --project-directory /home/pi/internet-monitoring up --detach --no-color --quiet-pull --no-build --", "containers": [], "images": [], "msg": "Error when processing prometheus: Get "https://registry-1.docker.io/v2/\": dial tcp: lookup registry-1.docker.io on [::1]:53: read udp [::1]:54518->[::1]:53: read: connection refused\nError when processing ping: Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?\nError when processing speedtest: Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?\nError when processing grafana: Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?\nError when processing nodeexp: Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?\nError when processing nginx-proxy: Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?\nGeneral error: Error response from daemon: Get "https://registry-1.docker.io/v2/\": dial tcp: lookup registry-1.docker.io on [::1]:53: read udp [::1]:54518->[::1]:53: read: connection refused", "rc": 1, "stderr": "{"id":"prometheus","text":"Pulling"}\n{"id":"nginx-proxy","text":"Pulling"}\n{"id":"speedtest","text":"Pulling"}\n{"id":"ping","text":"Pulling"}\n{"id":"nodeexp","text":"Pulling"}\n{"id":"grafana","text":"Pulling"}\n{"id":"prometheus","text":"Error","status":"Get \"https://registry-1.docker.io/v2/\\\": dial tcp: lookup registry-1.docker.io on [::1]:53: read udp [::1]:54518-\u003e[::1]:53: read: connection refused"}\n{"id":"ping","text":"Error","status":"Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?"}\n{"id":"speedtest","text":"Error","status":"Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?"}\n{"id":"grafana","text":"Error","status":"Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?"}\n{"id":"nodeexp","text":"Error","status":"Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?"}\n{"id":"nginx-proxy","text":"Error","status":"Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?"}\n{"error":true,"message":"Error response from daemon: Get \"https://registry-1.docker.io/v2/\\\": dial tcp: lookup registry-1.docker.io on [::1]:53: read udp [::1]:54518-\u003e[::1]:53: read: connection refused"}\n", "stderr_lines": ["{"id":"prometheus","text":"Pulling"}", "{"id":"nginx-proxy","text":"Pulling"}", "{"id":"speedtest","text":"Pulling"}", "{"id":"ping","text":"Pulling"}", "{"id":"nodeexp","text":"Pulling"}", "{"id":"grafana","text":"Pulling"}", "{"id":"prometheus","text":"Error","status":"Get \"https://registry-1.docker.io/v2/\": dial tcp: lookup registry-1.docker.io on [::1]:53: read udp [::1]:54518-\u003e[::1]:53: read: connection refused"}", "{"id":"ping","text":"Error","status":"Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?"}", "{"id":"speedtest","text":"Error","status":"Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?"}", "{"id":"grafana","text":"Error","status":"Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?"}", "{"id":"nodeexp","text":"Error","status":"Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?"}", "{"id":"nginx-proxy","text":"Error","status":"Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?"}", "{"error":true,"message":"Error response from daemon: Get \"https://registry-1.docker.io/v2/\": dial tcp: lookup registry-1.docker.io on [::1]:53: read udp [::1]:54518-\u003e[::1]:53: read: connection refused"}"], "stdout": "", "stdout_lines": []}

PLAY RECAP ***************************************************************************************************************************************************************************************************************************************************************************************************************
192.168.40.6 : ok=10 changed=1 unreachable=0 failed=1 skipped=8 rescued=0 ignored=0

[BEMORLDEV]

pi4:~/internet-pi $ docker info

Client: Docker Engine - Community
Version: 28.1.1
Context: default
Debug Mode: false
Plugins:
buildx: Docker Buildx (Docker Inc.)
Version: v0.23.0
Path: /usr/libexec/docker/cli-plugins/docker-buildx
compose: Docker Compose (Docker Inc.)
Version: v2.35.1
Path: /usr/libexec/docker/cli-plugins/docker-compose

Server:
permission denied while trying to connect to the Docker daemon socket at unix:///var/run/docker.sock: Get "http://%2Fvar%2Frun%2Fdocker.sock/v1.49/info": dial unix /var/run/docker.sock: connect: permission denied

[BEMORLDEV]

I tried a suggestion from google search...
You can add a user to the docker group using sudo usermod -aG docker $USER and then log out and back in to apply the change.

pi4:~/internet-pi $ docker info
Client: Docker Engine - Community
Version: 28.1.1
Context: default
Debug Mode: false
Plugins:
buildx: Docker Buildx (Docker Inc.)
Version: v0.23.0
Path: /usr/libexec/docker/cli-plugins/docker-buildx
compose: Docker Compose (Docker Inc.)
Version: v2.35.1
Path: /usr/libexec/docker/cli-plugins/docker-compose

Server:
Containers: 0
Running: 0
Paused: 0
Stopped: 0
Images: 0
Server Version: 28.1.1
Storage Driver: overlay2
Backing Filesystem: extfs
Supports d_type: true
Using metacopy: false
Native Overlay Diff: true
userxattr: false
Logging Driver: json-file
Cgroup Driver: systemd
Cgroup Version: 2
Plugins:
Volume: local
Network: bridge host ipvlan macvlan null overlay
Log: awslogs fluentd gcplogs gelf journald json-file local splunk syslog
Swarm: inactive
Runtimes: io.containerd.runc.v2 runc
Default Runtime: runc
Init Binary: docker-init
containerd version: 05044ec0a9a75232cad458027ca83437aae3f4da
runc version: v1.2.5-0-g59923ef
init version: de40ad0
Security Options:
seccomp
Profile: builtin
cgroupns
Kernel Version: 6.12.25+rpt-rpi-v8
Operating System: Debian GNU/Linux 12 (bookworm)
OSType: linux
Architecture: aarch64
CPUs: 4
Total Memory: 3.703GiB
Name: raspberrypi4
ID: ea91652c-431d-4c9e-8085-162bb36c3369
Docker Root Dir: /var/lib/docker
Debug Mode: false
Experimental: false
Insecure Registries:
::1/128
127.0.0.0/8
Live Restore Enabled: false

WARNING: No memory limit support
WARNING: No swap limit support

:( still, no dice...

PLAY [Configure Internet Pi.] ********************************************************************************************************************************************************************************************************************************************************************************************

TASK [Gathering Facts] ***************************************************************************************************************************************************************************************************************************************************************************************************
ok: [192.168.40.6]

TASK [Load configuration (with defaults from example file).] *************************************************************************************************************************************************************************************************************************************************************
ok: [192.168.40.6] => (item=example.config.yml)
ok: [192.168.40.6] => (item=config.yml)

TASK [Ensure apt cache is up to date.] ***********************************************************************************************************************************************************************************************************************************************************************************
ok: [192.168.40.6]

TASK [Ensure pacman cache is up to date] *********************************************************************************************************************************************************************************************************************************************************************************
skipping: [192.168.40.6]

TASK [Check if Docker is already present.] *******************************************************************************************************************************************************************************************************************************************************************************
ok: [192.168.40.6]

TASK [Download Docker install convenience script.] ***********************************************************************************************************************************************************************************************************************************************************************
skipping: [192.168.40.6]

TASK [Run Docker install convenience script.] ****************************************************************************************************************************************************************************************************************************************************************************
skipping: [192.168.40.6]

TASK [Ensure Docker is started.] *****************************************************************************************************************************************************************************************************************************************************************************************
ok: [192.168.40.6]

TASK [Ensure dependencies are installed (Debian).] ***********************************************************************************************************************************************************************************************************************************************************************
ok: [192.168.40.6]

TASK [Ensure dependencies are installed (Archlinux).] ********************************************************************************************************************************************************************************************************************************************************************
skipping: [192.168.40.6]

TASK [Ensure user is added to the docker group: breck] *******************************************************************************************************************************************************************************************************************************************************************
ok: [192.168.40.6]

TASK [Reset connection so docker group is picked up.] ********************************************************************************************************************************************************************************************************************************************************************

TASK [Gather package facts.] *********************************************************************************************************************************************************************************************************************************************************************************************
skipping: [192.168.40.6]

TASK [Add Buster backports apt key.] *************************************************************************************************************************************************************************************************************************************************************************************
skipping: [192.168.40.6] => (item=04EE7237B7D453EC)
skipping: [192.168.40.6] => (item=648ACFD622F3D138)
skipping: [192.168.40.6] => (item=0E98404D386FA1D9)
skipping: [192.168.40.6] => (item=6ED0E7B82643E131)
skipping: [192.168.40.6]

TASK [Add Buster backports for fixed libseccomp2.] ***********************************************************************************************************************************************************************************************************************************************************************
skipping: [192.168.40.6]

TASK [Install >libseccomp2.4.4 to fix 32-bit OS issue.] ******************************************************************************************************************************************************************************************************************************************************************
skipping: [192.168.40.6]

TASK [Synchronize internet-monitoring directory.] ************************************************************************************************************************************************************************************************************************************************************************
ok: [192.168.40.6]

TASK [Ensure internet-monitoring directory is not a Git repository.] *****************************************************************************************************************************************************************************************************************************************************
ok: [192.168.40.6]

TASK [Copy templated internet-monitoring files into place.] **************************************************************************************************************************************************************************************************************************************************************
ok: [192.168.40.6] => (item={'src': 'docker-compose.yml.j2', 'dest': 'docker-compose.yml'})
ok: [192.168.40.6] => (item={'src': 'grafana-config.monitoring.j2', 'dest': 'grafana/config.monitoring'})
changed: [192.168.40.6] => (item={'src': 'prometheus.yml.j2', 'dest': 'prometheus/prometheus.yml'})
ok: [192.168.40.6] => (item={'src': 'prometheus-pinghosts.yaml.j2', 'dest': 'prometheus/pinghosts.yaml'})

TASK [Ensure internet-monitoring environment is running.] ****************************************************************************************************************************************************************************************************************************************************************
fatal: [192.168.40.6]: FAILED! => {"actions": [{"id": "ping", "status": "Pulling", "what": "image"}, {"id": "speedtest", "status": "Pulling", "what": "image"}, {"id": "nodeexp", "status": "Pulling", "what": "image"}, {"id": "grafana", "status": "Pulling", "what": "image"}, {"id": "nginx-proxy", "status": "Pulling", "what": "image"}, {"id": "prometheus", "status": "Pulling", "what": "image"}], "changed": false, "cmd": "/usr/bin/docker compose --ansi never --progress json --project-directory /home/pi/internet-monitoring up --detach --no-color --quiet-pull --no-build --", "containers": [], "images": [], "msg": "Error when processing nginx-proxy: Get "https://registry-1.docker.io/v2/\": dial tcp: lookup registry-1.docker.io on [::1]:53: read udp [::1]:44443->[::1]:53: read: connection refused\nError when processing prometheus: Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?\nError when processing ping: Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?\nError when processing grafana: Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?\nError when processing speedtest: Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?\nError when processing nodeexp: Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?\nGeneral error: Error response from daemon: Get "https://registry-1.docker.io/v2/\": dial tcp: lookup registry-1.docker.io on [::1]:53: read udp [::1]:44443->[::1]:53: read: connection refused", "rc": 1, "stderr": "{"id":"ping","text":"Pulling"}\n{"id":"speedtest","text":"Pulling"}\n{"id":"nodeexp","text":"Pulling"}\n{"id":"grafana","text":"Pulling"}\n{"id":"nginx-proxy","text":"Pulling"}\n{"id":"prometheus","text":"Pulling"}\n{"id":"nginx-proxy","text":"Error","status":"Get \"https://registry-1.docker.io/v2/\\\": dial tcp: lookup registry-1.docker.io on [::1]:53: read udp [::1]:44443-\u003e[::1]:53: read: connection refused"}\n{"id":"prometheus","text":"Error","status":"Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?"}\n{"id":"ping","text":"Error","status":"Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?"}\n{"id":"grafana","text":"Error","status":"Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?"}\n{"id":"speedtest","text":"Error","status":"Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?"}\n{"id":"nodeexp","text":"Error","status":"Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?"}\n{"error":true,"message":"Error response from daemon: Get \"https://registry-1.docker.io/v2/\\\": dial tcp: lookup registry-1.docker.io on [::1]:53: read udp [::1]:44443-\u003e[::1]:53: read: connection refused"}\n", "stderr_lines": ["{"id":"ping","text":"Pulling"}", "{"id":"speedtest","text":"Pulling"}", "{"id":"nodeexp","text":"Pulling"}", "{"id":"grafana","text":"Pulling"}", "{"id":"nginx-proxy","text":"Pulling"}", "{"id":"prometheus","text":"Pulling"}", "{"id":"nginx-proxy","text":"Error","status":"Get \"https://registry-1.docker.io/v2/\": dial tcp: lookup registry-1.docker.io on [::1]:53: read udp [::1]:44443-\u003e[::1]:53: read: connection refused"}", "{"id":"prometheus","text":"Error","status":"Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?"}", "{"id":"ping","text":"Error","status":"Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?"}", "{"id":"grafana","text":"Error","status":"Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?"}", "{"id":"speedtest","text":"Error","status":"Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?"}", "{"id":"nodeexp","text":"Error","status":"Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?"}", "{"error":true,"message":"Error response from daemon: Get \"https://registry-1.docker.io/v2/\": dial tcp: lookup registry-1.docker.io on [::1]:53: read udp [::1]:44443-\u003e[::1]:53: read: connection refused"}"], "stdout": "", "stdout_lines": []}

PLAY RECAP ***************************************************************************************************************************************************************************************************************************************************************************************************************
192.168.40.6 : ok=10 changed=0 unreachable=0 failed=1 skipped=8 rescued=0 ignored=0

[martinbrose]

Hi @BEMORLDEV,

Which user have you specified in the inventory.ini and is this user in the docker user group?
Have you restarted your machine? I think logging out and logging in doesn't necessarily help.

And if you try to pull one of the images from the terminal with docker pull prom/prometheus:latest, does this work?

[rjhornsby]

I ran into the same problem. I'm guessing it's because raspiOS may not - depending on how you burn your SD card - default to using the pi user.

The solution is buried up there somewhere, but the TL;DR version to get past this is

sudo usermod -aG docker $USER, then log out and back in to pick up your group membership changes.

or

as @martinbrose suggests above, change the ansible_user in inventory.ini to your username. If you don't know your username, you can run the command whoami.

The underlying issue is that the docker socket file /var/run/docker.sock has only user/group read+write permission, not other:

srw-rw---- 1 root docker 0 Jun 11 17:52 /var/run/docker.sock

The solution is not to change the socket's permissions. This is a bad idea™ and will only be a temporary fix because sockets are ephemeral. Instead, add yourself to the docker group or update inventory.ini (and re-run the playbook) and you should be fine.

[zymurgy]

I had the same problem on Raspberry PI OS (Bookworm). I think the core issue is that "resolvconf" gets installed as a dependency by the docker.yml task. However, the current version of Bookworm uses NetworkManager which wants to manage /etc/resolv.conf itself. This breaks the resolver and then docker can't resolve registry-1.docker.io. If you look at /etc/resolv.conf and it's empty you know what happened. To fix the problem run the following:

sudo apt purge resolvconf
sudo rm -f /etc/resolv.conf
sudo systemctl restart NetworkManager
cat /etc/resolv.conf

The resolve.conf should get restored and DNS lookups should work again.

I removed the dependency for resolvconf from docker.yml and ran main.yml again and the installation worked, but I'm only installing internet-monitoring and not pi-hole.