Docker issue while trying to restart

Troubleshooting
1

Hello I have not been using brewblox for a few months, while trying to reconnect I see on the page the message “waiting for datastore”, while trying to restart brewblox I appear to have issues with my docker as I have the following error message, would you have an idea of how to fix this?

ERROR: Couldn’t connect to Docker daemon at http+docker://localhost - is it running?

If it’s at a non-standard location, specify the URL with the DOCKER_HOST environment variable.

Command ‘docker-compose up -d --remove-orphans’ returned non-zero exit status 1

2

A good start is to reboot the Pi, and then update system software:

sudo apt update
sudo apt upgrade -y
pip3 install -U --user docker-compose

Then run docker version and docker-compose version to check whether everything works.

Afterwards I’d also recommend running brewblox-ctl update.

3

thank you, the error was solved, apparently since I used the tilt hydrometer I have memory issues with my raspberry pi which seems to create many problems for updates.
moving to the next issue now with the spark service offline

4

Did you update and start it?

5

I have launched the update and it seems to be up however I have the following errors messages at the update

WARNING: You are using Python 3.5, which is no longer maintained.
We recommend upgrading your system.
For more information, please visit https://brewblox.netlify.app/user/system_upgrades.html

Do you want to remove old docker images to free disk space? [Y/n]: y
INFO Updating brewblox-ctl…
/usr/lib/python3/dist-packages/OpenSSL/_util.py:6: CryptographyDeprecationWarning: Python 3.5 support will be dropped in the next release of cryptography. Please upgrade your Python.
from cryptography.hazmat.bindings.openssl.binding import Binding
Exception:
Traceback (most recent call last):
File “/usr/lib/python3/dist-packages/pip/basecommand.py”, line 215, in main
status = self.run(options, args)
File “/usr/lib/python3/dist-packages/pip/commands/install.py”, line 307, in run
delete=build_delete) as build_dir:
File “/usr/lib/python3/dist-packages/pip/utils/build.py”, line 22, in init
name = os.path.realpath(tempfile.mkdtemp(prefix=“pip-build-”))
File “/usr/lib/python3.5/tempfile.py”, line 497, in mkdtemp
prefix, suffix, dir, output_type = _sanitize_params(prefix, suffix, dir)
File “/usr/lib/python3.5/tempfile.py”, line 269, in _sanitize_params
dir = gettempdir()
File “/usr/lib/python3.5/tempfile.py”, line 435, in gettempdir
tempdir = _get_default_tempdir()
File “/usr/lib/python3.5/tempfile.py”, line 370, in _get_default_tempdir
dirlist)
FileNotFoundError: [Errno 2] No usable temporary directory found in [’/tmp’, ‘/var/tmp’, ‘/usr/tmp’, ‘/home/pi/brewblox’]
Command ‘/usr/bin/python3 -m pip install --user --upgrade --no-cache-dir brewblox-ctl’ returned non-zero exit status 2

6

Short version: you have the old version of Raspbian installed, that still uses a Python version that is no longer supported by multiple libraries.

See that URL for instructions on how to easily handle upgrades.

7

ok, I have fully reinstalled the SD card to free some space and have updated versions. It is all working properly now.
Thank you for your help

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