Can't upgrade due to old docker version

AdrianoFerrari · May 28, 2020, 3:16am

During upgrade, I did cd /var/discourse; git pull; ./launcher rebuild app.

I get “Upgrade Complete” and “UPGRADE OF POSTGRES COMPLETE”. The latter says to “rebuild again”, though it seems to make no difference.

Despite upgrade being complete, I can’t start the app. Doing ./launcher start app gives the following error:

Unable to find image 'local_discourse/app:latest' locally
/usr/bin/docker: Error response from daemon: pull access denied for local_discourse/app, repository does not exist or may require 'docker login'.
See '/usr/bin/docker run --help'.

Can’t restart my app again, and not sure how to proceed.

./discourse-doctor doesn’t help (it just detects app isn’t running, tries to rebuild and restart, ends up with same error).

Can’t attach file, as a new user, so here’s what I think it the relevant snippet from debug log:

Failed to rebuild app.

Checking your domain name . . .

Connection to community.gingkoapp.com succeeded.
You should probably remove any non-standard plugins and rebuild.
Attempting to restart existing container. . . 

+ /usr/bin/docker run --shm-size=512m -d --restart=always -e LANG=en_US.UTF-8 -e RAILS_ENV=production -e UNICORN_WORKERS=2 -e UNICORN_SIDEKIQS=1 -e RUBY_GLOBAL_METHOD_CACHE_SIZE=131072 -e RUBY_GC_HEAP_GROWTH_MAX_SLOTS=40000 -e RUBY_GC_HEAP_INIT_SLOTS=400000 -e RUBY_GC_HEAP_OLDOBJECT_LIMIT_FACTOR=1.5 -e DISCOURSE_DB_SOCKET=/var/run/postgresql -e DISCOURSE_DB_HOST= -e DISCOURSE_DB_PORT= -e DISCOURSE_DEVELOPER_EMAILS=REDACTED  -e DISCOURSE_HOSTNAME=community.gingkoapp.com -e DISCOURSE_SMTP_ADDRESS=smtp.mailgun.org -e DISCOURSE_SMTP_USER_NAME=postmaster@community.gingkoapp.com -e DISCOURSE_SMTP_PASSWORD=REDACTED  -h community-app -e DOCKER_HOST_IP=172.17.0.1 --name app -t -p 80:80 -p 2222:22 -v /var/discourse/shared/standalone:/shared -v /var/discourse/shared/standalone/log/var-log:/var/log --mac-address 02:fc:04:ee:f5:11 local_discourse/app /sbin/boot
Unable to find image 'local_discourse/app:latest' locally
/usr/bin/docker: Error response from daemon: pull access denied for local_discourse/app, repository does not exist or may require 'docker login'.
See '/usr/bin/docker run --help'.
Failed to restart the container.

itsbhanusharma · May 27, 2020, 1:03pm

What is Your docker version?
Did You try solutions suggested in this FAQ?

AdrianoFerrari · May 27, 2020, 1:08pm

Thanks!

Docker version 17.12.0-ce

I am in a space-constrained environment (I’m constantly being asked attempt to clean up images), so that sounds like a plausible reason for this failure.

Will try steps listed and report back.

itsbhanusharma · May 27, 2020, 1:39pm

Your ~~discourse~~ docker version is too old.
I’d suggest updating that before proceeding.

AdrianoFerrari · May 27, 2020, 1:30pm

Not sure how to do that without the web interface (or curl to the API), given that it’s down. But will look into it. I’m just going to upgrade my droplet disk size first and see if that helps.

(unless you meant that my docker version is old?)

itsbhanusharma · May 27, 2020, 1:39pm

Ohh. I’m sorry.
I meant to say docker is too old. Try upgrading that first. Extremely sorry for the typo and confusion.

AdrianoFerrari · May 27, 2020, 1:40pm

No worries, I figured that’s what you meant, since you asked for docker version.
I’m also on 14.04, so I’m going to upgrade that first, to 16.04.

Thanks again for the input. Will post back any updates.

itsbhanusharma · May 27, 2020, 1:42pm

Boy oh boy!

14.04 > 16.04 > 18.04 you’ve got a long day ahead.

Just bear in mind 16.04 is also EOL in 2021 so bump to at least 18.04

AdrianoFerrari · May 27, 2020, 1:46pm

Working hard just to stand still… story of my life!
Software moves too fast for me!

itsbhanusharma · May 27, 2020, 1:49pm

I wish you all the best with this new adventure of software upgrades.

Falco · May 27, 2020, 4:25pm

If that is a VPS it isn’t necessary to upgrade the current server. Spinnning a new one running 20.04 and moving your site to that new server is way faster and easier.

itsbhanusharma · May 27, 2020, 4:30pm

But their container is messed up and not starting due to multiple reasons.

Falco · May 27, 2020, 4:32pm

Last automatic backup will be under the shared folder to be moved to the new server.

Overgrow · May 27, 2020, 4:32pm

Where can I find which is currently the oldest supported docker version with Discourse?

Falco · May 27, 2020, 4:37pm

Here

github.com

discourse/discourse_docker/blob/master/launcher#L83


if [[ $config =~ $re ]];
  then
    echo
    echo "ERROR: Config name '$config' must not contain upper case characters, spaces or special characters. Correct config name and rerun $0."
    echo
    exit 1
fi

cd "$(dirname "$0")"

docker_min_version='17.03.1'
docker_rec_version='17.06.2'
git_min_version='1.8.0'
git_rec_version='1.8.0'

config_file=containers/"$config".yml
cidbootstrap=cids/"$config"_bootstrap.cid
local_discourse=local_discourse
image="discourse/base:2.0.20200512-1735"
docker_path=`which docker.io 2> /dev/null || which docker`
git_path=`which git`

AdrianoFerrari · May 27, 2020, 4:43pm

Yes, that’s what I’m doing at the moment. Should be much faster than upgrading current… cross my fingers that I can restore from backup files (which I can still access on the old server).

Overgrow · May 27, 2020, 4:43pm

Thanks…!

So that seems like this one is supported well in current discourse… Why do you think it is too old @itsbhanusharma?

itsbhanusharma · May 27, 2020, 4:54pm

Who said it’s supported?
Any docker version that is over a couple years old isn’t even supported by it’s developer then how do you expect it to be supported by discourse?

Overgrow · May 27, 2020, 5:00pm

I’m just looking at the source code…

AdrianoFerrari · May 27, 2020, 9:43pm

All’s well now. I spun up a fresh Digital Ocean droplet and restored the backup. The latest backup was corrupt, I think, but at least I only lost one or two posts and restored successfully from the backup before that.

Thanks for your help, everyone!