# Does the Docker installation still rotate logs?
**URL:** https://meta.discourse.org/t/does-the-docker-installation-still-rotate-logs/62841
**Category:** Support
**Created:** [5월 17, 2017, 1:10오전 UTC](https://meta.discourse.org/t/does-the-docker-installation-still-rotate-logs/62841 "2017-05-17T01:10:21Z")
**Posts on this page:** 14
**Page:** 1
### Author:  [@samnazarko](https://meta.discourse.org/u/samnazarko)
#### Post date: [5월 17, 2017, 1:10오전 UTC](https://meta.discourse.org/t/does-the-docker-installation-still-rotate-logs/62841/1 "2017-05-17T01:10:21Z")
Hi,
We’ve been using Discourse on one box for a while and things have been running smoothly. I regularly rebuild when we change Git plugins and once a month to ensure a good container and fewer upgrade problems.
I was checking logs today and saw:
```plaintext
root@disc:/var/discourse# ls -lh shared/standalone/log/var-log/nginx/
total 98G
-rw-r--r-- 1 www-data www-data 742 Oct 22 2016 access.letsencrypt.log
-rw-r----- 1 www-data www-data 97G May 17 02:03 access.log
-rw-r----- 1 www-data www-data 318M Aug 10 2016 access.log.1
-rw-r----- 1 www-data www-data 61M Aug 1 2016 access.log.10.gz
-rw-r----- 1 www-data www-data 57M Jul 31 2016 access.log.11.gz
-rw-r----- 1 www-data www-data 53M Jul 30 2016 access.log.12.gz
-rw-r----- 1 www-data www-data 52M Jul 29 2016 access.log.13.gz
-rw-r----- 1 www-data www-data 55M Jul 28 2016 access.log.14.gz
-rw-r----- 1 www-data www-data 50M Aug 11 2016 access.log.1.gz
-rw-r----- 1 www-data www-data 55M Aug 9 2016 access.log.2.gz
-rw-r----- 1 www-data www-data 59M Aug 8 2016 access.log.3.gz
-rw-r----- 1 www-data www-data 59M Aug 7 2016 access.log.4.gz
-rw-r----- 1 www-data www-data 54M Aug 6 2016 access.log.5.gz
-rw-r----- 1 www-data www-data 57M Aug 5 2016 access.log.6.gz
-rw-r----- 1 www-data www-data 57M Aug 4 2016 access.log.7.gz
-rw-r----- 1 www-data www-data 58M Aug 3 2016 access.log.8.gz
-rw-r----- 1 www-data www-data 60M Aug 2 2016 access.log.9.gz
-rw-r--r-- 1 www-data www-data 0 Sep 30 2016 error.letsencrypt.log
-rw-r----- 1 www-data www-data 22M May 16 13:00 error.log
-rw-r----- 1 www-data www-data 1.2K Aug 10 2016 error.log.15.gz
```
As this was a box just for Discourse, I didn’t have as close monitoring as I normally would have, but do now.
I’ve deleted those logs now, but can anyone confirm if log rotation is still working for the Docker installation, and explain why it stopped working?
Cheers
Sam
---
### Author:  [@Falco](https://meta.discourse.org/u/Falco)
#### Post date: [5월 17, 2017, 1:30오전 UTC](https://meta.discourse.org/t/does-the-docker-installation-still-rotate-logs/62841/2 "2017-05-17T01:30:25Z")
What’s the version of the docker image your have? (output of `cd /var/discourse && git rev-parse HEAD`)
---
### Author:  [@samnazarko](https://meta.discourse.org/u/samnazarko)
#### Post date: [5월 17, 2017, 1:31오전 UTC](https://meta.discourse.org/t/does-the-docker-installation-still-rotate-logs/62841/3 "2017-05-17T01:31:49Z")
Hi Rafael,
Thanks for the prompt response.
My installation is based on:
```plaintext
commit 88ee2e35b59b7e9c6f7390c138b0fc7526a823cb
Author: Guo .......... (no-spam)
Date: Mon Apr 17 11:11:56 2017 +0800
Add support for Ruby 2.4 in 1.4.0.
```
---
### Author:  [@pfaffman](https://meta.discourse.org/u/pfaffman)
#### Post date: [5월 17, 2017, 1:56오전 UTC](https://meta.discourse.org/t/does-the-docker-installation-still-rotate-logs/62841/4 "2017-05-17T01:56:38Z")
I noticed this on a site I was debugging today. I did a rebuild a couple days ago, I’ll check if the logs rotated and get the version information tomorrow.
---
### Author:  [@mpalmer](https://meta.discourse.org/u/mpalmer)
#### Post date: [5월 17, 2017, 2:39오전 UTC](https://meta.discourse.org/t/does-the-docker-installation-still-rotate-logs/62841/5 "2017-05-17T02:39:12Z")
My, what a large log you have…
---
### Author:  [@codinghorror](https://meta.discourse.org/u/codinghorror)
#### Post date: [5월 17, 2017, 6:06오전 UTC](https://meta.discourse.org/t/does-the-docker-installation-still-rotate-logs/62841/6 "2017-05-17T06:06:49Z")
`shared/standalone/log/var-log/`
No such folder exists on one older installation I checked. Should I be concerned about that @sam?
From a more modern install I did in March:
```plaintext
jeff@forum:/var/discourse$ ls -lh shared/standalone/log/var-log/nginx/
total 2.0G
-rw-r----- 1 www-data www-data 0 Mar 13 01:03 access.letsencrypt.log
-rw-r----- 1 www-data www-data 865 Mar 12 14:17 access.letsencrypt.log.1
-rw-r--r-- 1 www-data www-data 363 Mar 6 13:06 access.letsencrypt.log.2.gz
-rw-r----- 1 www-data www-data 520M May 16 23:06 access.log
-rw-r----- 1 www-data www-data 544M May 16 00:51 access.log.1
-rw-r----- 1 www-data www-data 69M May 7 00:57 access.log.10.gz
-rw-r----- 1 www-data www-data 74M May 6 00:46 access.log.11.gz
-rw-r----- 1 www-data www-data 72M May 5 00:38 access.log.12.gz
-rw-r----- 1 www-data www-data 67M May 4 00:55 access.log.13.gz
-rw-r----- 1 www-data www-data 68M May 3 00:42 access.log.14.gz
-rw-r----- 1 www-data www-data 63M May 15 00:50 access.log.2.gz
-rw-r----- 1 www-data www-data 66M May 14 00:46 access.log.3.gz
-rw-r----- 1 www-data www-data 74M May 13 00:39 access.log.4.gz
-rw-r----- 1 www-data www-data 77M May 12 00:55 access.log.5.gz
-rw-r----- 1 www-data www-data 77M May 11 00:53 access.log.6.gz
-rw-r----- 1 www-data www-data 74M May 10 00:52 access.log.7.gz
-rw-r----- 1 www-data www-data 74M May 9 00:55 access.log.8.gz
-rw-r----- 1 www-data www-data 66M May 8 00:35 access.log.9.gz
-rw-r----- 1 www-data www-data 0 Mar 13 01:03 error.letsencrypt.log
-rw-r----- 1 www-data www-data 453 Mar 12 14:17 error.letsencrypt.log.1
-rw-r--r-- 1 www-data www-data 249 Mar 6 13:06 error.letsencrypt.log.2.gz
-rw-r----- 1 www-data www-data 270K May 16 20:34 error.log
-rw-r----- 1 www-data www-data 627K May 15 20:59 error.log.1
-rw-r----- 1 www-data www-data 20K May 7 00:21 error.log.10.gz
-rw-r----- 1 www-data www-data 17K May 6 00:04 error.log.11.gz
-rw-r----- 1 www-data www-data 12K May 4 21:47 error.log.12.gz
-rw-r----- 1 www-data www-data 14K May 3 23:22 error.log.13.gz
-rw-r----- 1 www-data www-data 9.5K May 3 00:15 error.log.14.gz
-rw-r----- 1 www-data www-data 3.4K May 15 00:41 error.log.2.gz
-rw-r----- 1 www-data www-data 8.5K May 13 23:58 error.log.3.gz
-rw-r----- 1 www-data www-data 15K May 12 21:50 error.log.4.gz
-rw-r----- 1 www-data www-data 4.4K May 12 00:44 error.log.5.gz
-rw-r----- 1 www-data www-data 12K May 11 00:51 error.log.6.gz
-rw-r----- 1 www-data www-data 22K May 10 00:52 error.log.7.gz
-rw-r----- 1 www-data www-data 3.9K May 8 22:38 error.log.8.gz
-rw-r----- 1 www-data www-data 7.8K May 7 23:44 error.log.9.gz
```
The access.log appears to only rotate at 500mb?
---
### Author:  [@sam](https://meta.discourse.org/u/sam)
#### Post date: [5월 17, 2017, 2:09오후 UTC](https://meta.discourse.org/t/does-the-docker-installation-still-rotate-logs/62841/7 "2017-05-17T14:09:26Z")
I just checked a recent install and can confirm we are indeed rotating.
The log rotations depends on a few things:
### First and foremost, being on a recent image.
This is how you can find what you are on:
```plaintext
cd /var/discourse
git pull
nano launcher
```
Look for this line in launcher [discourse\_docker/launcher at master · discourse/discourse\_docker · GitHub](https://github.com/discourse/discourse_docker/blob/master/launcher#L67)
eg:
```plaintext
image=discourse/discourse:1.3.10
```
Then compare to the image you are running:
```plaintext
./launcher enter app
cat /VERSION
1.3.10
```
If you are an old image, **do this ASAP** :
```plaintext
cd /var/discourse
./launcher rebuild app
```
### Make sure you have /var/log mounted to host
Our [sample template](https://github.com/discourse/discourse_docker/blob/master/samples/standalone.yml) contains the lines:
```plaintext
volumes:
- volume:
host: /var/discourse/shared/standalone
guest: /shared
- volume:
host: /var/discourse/shared/standalone/log/var-log
guest: /var/log
```
This says that `/var/log` in the container will be mounted at `/var/discourse/shared/standalone/log/var-log`
If this is missing, **add it asap** we expect the logs to live outside of the container, not inside it.
### How our log rotation is configured?
Our web template [contains this info](https://github.com/discourse/discourse_docker/blob/master/templates/web.template.yml#L228-L243)
```plaintext
- file:
path: /etc/logrotate.d/nginx
contents: |
/var/log/nginx/*.log {
daily
missingok
rotate 14
compress
delaycompress
notifempty
create 0640 www-data www-data
sharedscripts
postrotate
sv 1 nginx
endscript
```
Once a day we rotate logs for NGINX and compress old logs.
The image runs `cron` (actually anacron on boot and then cron which is a bit better)
```plaintext
./launcher enter app
ps aux | grep cron
root 48 0.0 0.0 4244 764 ? Ss May04 0:00 runsv cron
root 51 0.0 0.0 29300 2956 ? S May04 0:01 cron -f
```
cron runs logrotate daily in `/etc/cron.daily`
```plaintext
cat /var/log/syslog.1
May 17 07:30:01 server anacron[13014]: Will run job `cron.daily' in 5 min.
May 17 07:35:01 server anacron[13014]: Job `cron.daily' started
May 17 07:35:01 server anacron[13359]: Updated timestamp for job `cron.daily' to 2017-05-17
May 17 07:52:41 server anacron[13014]: Job `cron.daily' terminated
```
* * *
So yeah, this is all working but you may need a rebuild and you may need to add the missing share.
---
### Author:  [@pfaffman](https://meta.discourse.org/u/pfaffman)
#### Post date: [5월 17, 2017, 8:25오후 UTC](https://meta.discourse.org/t/does-the-docker-installation-still-rotate-logs/62841/8 "2017-05-17T20:25:34Z")
It looks to me like this site is properly configured, but logs are still not getting removed.
`var-log` has `syslog.6.gz` dated November 2(Install was Oct 30).
I rebuilt 4 days ago.
```plaintext
root@:/var/discourse/shared/standalone# du -hs /var/discourse/shared/standalone/log/*
234M /var/discourse/shared/standalone/log/rails
7.3G /var/discourse/shared/standalone/log/var-log
root@:/var/discourse# grep discourse/discourse launcher
image=discourse/discourse:1.3.10
root@:/var/discourse# ./launcher enter app
root@-app:/var/www/discourse# cat /VERSION
1.3.10
```
```yml
## The Docker container is stateless; all data is stored in /shared
volumes:
- volume:
host: /var/discourse/shared/standalone
guest: /shared
- volume:
host: /var/discourse/shared/standalone/log/var-log
guest: /var/log
```
Any ideas?
---
### Author:  [@sam](https://meta.discourse.org/u/sam)
#### Post date: [5월 17, 2017, 8:44오후 UTC](https://meta.discourse.org/t/does-the-docker-installation-still-rotate-logs/62841/9 "2017-05-17T20:44:44Z")
What does `ls` return for `/var/discourse/shared/standalone/log/var-log/nginx`
---
### Author:  [@samnazarko](https://meta.discourse.org/u/samnazarko)
#### Post date: [5월 18, 2017, 3:45오후 UTC](https://meta.discourse.org/t/does-the-docker-installation-still-rotate-logs/62841/12 "2017-05-18T15:45:15Z")
Although I have cleaned up now, ls -l showed last modification of the rotated logs to be May 2016.
I have rebuild the container a few times since then; so maybe something around that time introduced a regression.
Cheers
Sam
---
### Author:  [@pfaffman](https://meta.discourse.org/u/pfaffman)
#### Post date: [5월 18, 2017, 3:49오후 UTC](https://meta.discourse.org/t/does-the-docker-installation-still-rotate-logs/62841/13 "2017-05-18T15:49:48Z")
Oops. I wondered about that, sorry @sam . And now the power is out. I’m pretty sure those access and error logs rotate weekly.
Edit: but I was wrong:
```plaintext
# ls -l /var/discourse/shared/standalone/log/var-log/nginx
total 3379516
-rw-r----- 1 www-data www-data 0 May 15 08:05 access.letsencrypt.log
-rw-r--r-- 1 root root 46994 May 13 17:07 access.letsencrypt.log.1
-rw-r----- 1 www-data www-data 158165198 May 18 17:08 access.log
-rw-r----- 1 www-data www-data 1249534339 May 18 08:05 access.log.1
-rw-r----- 1 www-data www-data 66684311 May 9 08:04 access.log.10.gz
-rw-r----- 1 www-data www-data 63257643 May 8 08:01 access.log.11.gz
-rw-r----- 1 www-data www-data 58825762 May 7 07:38 access.log.12.gz
-rw-r----- 1 www-data www-data 64048026 May 6 07:46 access.log.13.gz
-rw-r----- 1 www-data www-data 70102481 May 5 07:36 access.log.14.gz
-rw-r----- 1 www-data www-data 113561684 May 17 07:40 access.log.2.gz
-rw-r----- 1 www-data www-data 123669410 May 16 07:54 access.log.3.gz
-rw-r----- 1 www-data www-data 122622868 May 15 08:05 access.log.4.gz
-rw-r----- 1 www-data www-data 117469078 May 14 08:02 access.log.5.gz
-rw-r----- 1 www-data www-data 98707874 May 13 07:49 access.log.6.gz
-rw-r----- 1 www-data www-data 69591997 May 12 07:37 access.log.7.gz
-rw-r----- 1 www-data www-data 64107252 May 11 07:41 access.log.8.gz
-rw-r----- 1 www-data www-data 69511375 May 10 08:03 access.log.9.gz
-rw-r----- 1 www-data www-data 0 May 15 08:05 error.letsencrypt.log
-rw-r--r-- 1 root root 55603 May 13 17:07 error.letsencrypt.log.1
-rw-r----- 1 www-data www-data 7337 May 18 10:03 error.log
-rw-r----- 1 www-data www-data 799197396 May 18 03:51 error.log.1
-rw-r----- 1 www-data www-data 2970 May 8 22:32 error.log.10.gz
-rw-r----- 1 www-data www-data 10125 May 8 05:19 error.log.11.gz
-rw-r----- 1 www-data www-data 2638 May 7 01:52 error.log.12.gz
-rw-r----- 1 www-data www-data 2605 May 6 01:38 error.log.13.gz
-rw-r----- 1 www-data www-data 1621 May 4 19:08 error.log.14.gz
-rw-r----- 1 www-data www-data 39658321 May 17 07:40 error.log.2.gz
-rw-r----- 1 www-data www-data 39805951 May 16 07:54 error.log.3.gz
-rw-r----- 1 www-data www-data 42393565 May 15 08:05 error.log.4.gz
-rw-r----- 1 www-data www-data 24644324 May 14 08:02 error.log.5.gz
-rw-r----- 1 www-data www-data 4818480 May 13 06:22 error.log.6.gz
-rw-r----- 1 www-data www-data 5947 May 12 07:23 error.log.7.gz
-rw-r----- 1 www-data www-data 3393 May 11 04:21 error.log.8.gz
-rw-r----- 1 www-data www-data 2685 May 9 15:32 error.log.9.gz
```
---
### Author:  [@codinghorror](https://meta.discourse.org/u/codinghorror)
#### Post date: [8월 26, 2017, 11:51오전 UTC](https://meta.discourse.org/t/does-the-docker-installation-still-rotate-logs/62841/14 "2017-08-26T11:51:46Z")
I just double checked and rotation looks good to me on a live site.
```plaintext
root@forum:/var/discourse/shared/standalone/log/var-log/nginx# ls -l --block-size=M
total 1199M
-rw-r----- 1 www-data www-data 0M Mar 13 01:03 access.letsencrypt.log
-rw-r----- 1 www-data www-data 1M Mar 12 14:17 access.letsencrypt.log.1
-rw-r--r-- 1 www-data www-data 1M Mar 6 13:06 access.letsencrypt.log.2.gz
-rw-r----- 1 www-data www-data 44M Aug 26 04:53 access.log
-rw-r----- 1 www-data www-data 426M Aug 26 01:03 access.log.1
-rw-r----- 1 www-data www-data 61M Aug 17 00:41 access.log.10.gz
-rw-r----- 1 www-data www-data 62M Aug 16 00:53 access.log.11.gz
-rw-r----- 1 www-data www-data 58M Aug 15 00:37 access.log.12.gz
-rw-r----- 1 www-data www-data 51M Aug 14 01:04 access.log.13.gz
-rw-r----- 1 www-data www-data 50M Aug 13 00:39 access.log.14.gz
-rw-r----- 1 www-data www-data 57M Aug 25 01:00 access.log.2.gz
-rw-r----- 1 www-data www-data 58M Aug 24 00:47 access.log.3.gz
-rw-r----- 1 www-data www-data 58M Aug 23 00:48 access.log.4.gz
-rw-r----- 1 www-data www-data 60M Aug 22 00:56 access.log.5.gz
-rw-r----- 1 www-data www-data 52M Aug 21 01:03 access.log.6.gz
-rw-r----- 1 www-data www-data 49M Aug 20 00:59 access.log.7.gz
-rw-r----- 1 www-data www-data 60M Aug 19 00:59 access.log.8.gz
-rw-r----- 1 www-data www-data 59M Aug 18 00:42 access.log.9.gz
-rw-r----- 1 www-data www-data 0M Mar 13 01:03 error.letsencrypt.log
-rw-r----- 1 www-data www-data 1M Mar 12 14:17 error.letsencrypt.log.1
-rw-r--r-- 1 www-data www-data 1M Mar 6 13:06 error.letsencrypt.log.2.gz
-rw-r----- 1 www-data www-data 0M Aug 26 01:03 error.log
-rw-r----- 1 www-data www-data 1M Aug 25 15:33 error.log.1
-rw-r----- 1 www-data www-data 1M Aug 16 15:10 error.log.10.gz
-rw-r----- 1 www-data www-data 1M Aug 15 22:11 error.log.11.gz
-rw-r----- 1 www-data www-data 1M Aug 14 22:18 error.log.12.gz
-rw-r----- 1 www-data www-data 1M Aug 13 20:20 error.log.13.gz
-rw-r----- 1 www-data www-data 1M Aug 12 11:40 error.log.14.gz
-rw-r----- 1 www-data www-data 1M Aug 24 23:13 error.log.2.gz
-rw-r----- 1 www-data www-data 1M Aug 23 13:34 error.log.3.gz
-rw-r----- 1 www-data www-data 1M Aug 22 17:38 error.log.4.gz
-rw-r----- 1 www-data www-data 1M Aug 21 17:57 error.log.5.gz
-rw-r----- 1 www-data www-data 1M Aug 20 20:44 error.log.6.gz
-rw-r----- 1 www-data www-data 1M Aug 20 00:48 error.log.7.gz
-rw-r----- 1 www-data www-data 1M Aug 18 10:57 error.log.8.gz
-rw-r----- 1 www-data www-data 1M Aug 17 14:02 error.log.9.gz
```
Note that there are a limited number of `error.log` and `access.log` files, going back to Aug 17th, and the daily log file is compressed into the `.gz` version, at 1/10th the size.
---
### Author:  [@samnazarko](https://meta.discourse.org/u/samnazarko)
#### Post date: [8월 26, 2017, 1:37오후 UTC](https://meta.discourse.org/t/does-the-docker-installation-still-rotate-logs/62841/15 "2017-08-26T13:37:52Z")
Rotation is working again on new containers (built in August).
---
### Author:  [@sam](https://meta.discourse.org/u/sam)
#### Post date: [8월 27, 2017, 12:03오후 UTC](https://meta.discourse.org/t/does-the-docker-installation-still-rotate-logs/62841/16 "2017-08-27T12:03:47Z")