Hello. I have been using my nextcloud instance running on a VPS with docker.
Today i woke up and my cloud is not there anymore… just 404… no access via web, mobile or desktop sync application.
I haven’t touched the server since running a couple updates with apt update like 3 weeks ago… so i have no clue where to start looking.
I am a noob with docker and barely understand how it works. So please could you guide me with the first obvious places where i should start looking for problems?
I got this:
root@vmi489807:/var/log# docker container ls -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
ffe5ec01c9d5 collabora/code:latest "/bin/sh -c 'bash st…" 23 hours ago Up 9 hours 9980/tcp collabora_online
1b91597298b7 nextcloud:fpm-alpine "/entrypoint.sh php-…" 23 hours ago Up 9 hours 9000/tcp nextcloud
290effaca15d redis:alpine "docker-entrypoint.s…" 23 hours ago Up 9 hours (healthy) 6379/tcp redis
57c005edc8e7 portainer/portainer-ce:latest "/portainer --host u…" 11 days ago Up 9 hours 8000/tcp, 9000/tcp portainer
949d37692f05 mariadb:latest "docker-entrypoint.s…" 12 days ago Up 9 hours (healthy) 3306/tcp nextcloud-db
e949deee693e traefik:latest "/entrypoint.sh trae…" 2 weeks ago Up 9 hours 0.0.0.0:80->80/tcp, 0.0.0.0:443->443/tcp traefik
1824b5446fe9 tecnativa/docker-socket-proxy:latest "/docker-entrypoint.…" 5 months ago Up 9 hours 2375/tcp dockerproxy
a8b7247157e6 containrrr/watchtower:latest "/watchtower --clean…" 6 months ago Up 9 hours 8080/tcp watchtower
root@vmi489807:/var/log# docker exec 1b91597298b7 ls
3rdparty
AUTHORS
COPYING
apps
config
console.php
core
cron.php
custom_apps
data
index.html
index.php
lib
occ
ocm-provider
ocs
ocs-provider
public.php
remote.php
resources
robots.txt
status.php
themes
version.php
root@vmi489807:/var/log# docker exec -it 1b91597298b7 /bin/bash
OCI runtime exec failed: exec failed: container_linux.go:370: starting container process caused: exec: "/bin/bash": stat /bin/bash: no such file or directory: unknown
root@vmi489807:/var/log# docker exec -i -t 1b91597298b7 /bin/bash
OCI runtime exec failed: exec failed: container_linux.go:370: starting container process caused: exec: "/bin/bash": stat /bin/bash: no such file or directory: unknown
root@vmi489807:/var/log#
I am reading a few guides and i am trying to navigate the directories but i get the error shown here at the end of the code…
The last time i checked i was running this configuration:
I did a test renaming the index files in the nextcloud folder and created a new index.html file with a hello world test message and i can not reach it. So i am assuming there may be a problem with the traefik image? As far as i understand, this image is like a router that directs the traffic to the appropriate port and server image right?
Here is the output for the traefik logs… i shaved it a bit as there are many similar error lines…
root@vmi284507:~# docker logs e949deee693e
time="2021-06-23T00:00:19Z" level=info msg="Configuration loaded from file: /traefik.yaml"
2021/06/23 03:10:55 reverseproxy.go:476: httputil: ReverseProxy read error during body copy: unexpected EOF
2021/06/23 03:10:55 reverseproxy.go:476: httputil: ReverseProxy read error during body copy: unexpected EOF
2021/06/23 03:10:55 reverseproxy.go:476: httputil: ReverseProxy read error during body copy: unexpected EOF
.........
unexpected EOF
2021/07/06 11:29:20 reverseproxy.go:476: httputil: ReverseProxy read error during body copy: unexpected EOF
2021/07/06 13:37:39 reverseproxy.go:476: httputil: ReverseProxy read error during body copy: unexpected EOF
time="2021-07-07T00:02:32Z" level=error msg="service \"nginx\" error: unable to find the IP address for the container \"/nginx\": the server is ignored" providerName=docker container=nginx-0e1433223a0648bf5419adb72b608a96172bf890ff8facea2a3f1e0f5c78f691
time="2021-07-07T00:02:34Z" level=error msg="service \"nginx\" error: unable to find the IP address for the container \"/nginx\": the server is ignored" providerName=docker container=nginx-0e1433223a0648bf5419adb72b608a96172bf890ff8facea2a3f1e0f5c78f691
time="2021-07-07T00:02:36Z" level=error msg="service \"nginx\" error: unable to find the IP address for the container \"/nginx\": the server is ignored" providerName=docker container=nginx-0e1433223a0648bf5419adb72b608a96172bf890ff8facea2a3f1e0f5c78f691
time="2021-07-07T00:02:36Z" level=error msg="service \"nginx\" error: unable to find the IP address for the container \"/nginx\": the server is ignored" providerName=docker container=nginx-0e1433223a0648bf5419adb72b608a96172bf890ff8facea2a3f1e0f5c78f691
time="2021-07-07T00:02:37Z" level=error msg="service \"nginx\" error: unable to find the IP address for the container \"/nginx\": the server is ignored" providerName=docker container=nginx-0e1433223a0648bf5419adb72b608a96172bf890ff8facea2a3f1e0f5c78f691
time="2021-07-07T00:02:37Z" level=error msg="service \"nginx\" error: unable to find the IP address for the container \"/nginx\": the server is ignored" providerName=docker container=nginx-0e1433223a0648bf5419adb72b608a96172bf890ff8facea2a3f1e0f5c78f691
time="2021-07-07T00:02:38Z" level=error msg="service \"nginx\" error: unable to find the IP address for the container \"/nginx\": the server is ignored" providerName=docker container=nginx-0e1433223a0648bf5419adb72b608a96172bf890ff8facea2a3f1e0f5c78f691
time="2021-07-07T00:02:38Z" level=error msg="service \"nginx\" error: unable to find the IP address for the container \"/nginx\": the server is ignored" providerName=docker container=nginx-0e1433223a0648bf5419adb72b608a96172bf890ff8facea2a3f1e0f5c78f691
time="2021-07-07T00:02:41Z" level=error msg="service \"nginx\" error: unable to find the IP address for the container \"/nginx\": the server is ignored" providerName=docker container=nginx-0e1433223a0648bf5419adb72b608a96172bf890ff8facea2a3f1e0f5c78f691
time="2021-07-07T00:02:41Z" level=error msg="service \"nginx\" error: unable to find the IP address for the container \"/nginx\": the server is ignored" providerName=docker container=nginx-0e1433223a0648bf5419adb72b608a96172bf890ff8facea2a3f1e0f5c78f691
time="2021-07-07T13:52:04Z" level=error msg="accept tcp [::]:443: use of closed network connection" entryPointName=web-secure
time="2021-07-07T13:52:04Z" level=error msg="accept tcp [::]:80: use of closed network connection" entryPointName=web
time="2021-07-07T13:52:04Z" level=error msg="Error while starting server: http: Server closed" entryPointName=web
time="2021-07-07T13:52:04Z" level=error msg="Error while starting server: http: Server closed" entryPointName=web-secure
time="2021-07-07T13:52:04Z" level=error msg="Error while starting server: http: Server closed" entryPointName=web-secure
time="2021-07-07T13:52:04Z" level=error msg="close tcp [::]:80: use of closed network connection" entryPointName=web
time="2021-07-07T13:52:04Z" level=error msg="close tcp [::]:443: use of closed network connection" entryPointName=web-secure
time="2021-07-07T13:52:04Z" level=error msg="Error while starting server: http: Server closed" entryPointName=web
time="2021-07-07T13:52:04Z" level=error msg="Failed to list containers for docker, error error during connect: Get \"http://dockerproxy:2375/v1.24/containers/json?limit=0\": context canceled" providerName=docker
time="2021-07-07T13:52:57Z" level=info msg="Configuration loaded from file: /traefik.yaml"
time="2021-07-07T14:28:22Z" level=error msg="accept tcp [::]:443: use of closed network connection" entryPointName=web-secure
time="2021-07-07T14:28:22Z" level=error msg="Error while starting server: http: Server closed" entryPointName=web-secure
time="2021-07-07T14:28:22Z" level=error msg="accept tcp [::]:80: use of closed network connection" entryPointName=web
time="2021-07-07T14:28:22Z" level=error msg="Error while starting server: http: Server closed" entryPointName=web-secure
time="2021-07-07T14:28:22Z" level=error msg="Error while starting server: http: Server closed" entryPointName=web
time="2021-07-07T14:28:22Z" level=error msg="Error while starting server: http: Server closed" entryPointName=web
time="2021-07-07T14:28:22Z" level=error msg="close tcp [::]:80: use of closed network connection" entryPointName=web
time="2021-07-07T14:28:22Z" level=error msg="close tcp [::]:443: use of closed network connection" entryPointName=web-secure
time="2021-07-07T14:28:22Z" level=error msg="Failed to list containers for docker, error Cannot connect to the Docker daemon at tcp://dockerproxy:2375. Is the docker daemon running?" providerName=docker
time="2021-07-07T14:28:22Z" level=error msg="Failed to list containers for docker, error Cannot connect to the Docker daemon at tcp://dockerproxy:2375. Is the docker daemon running?" providerName=docker
time="2021-07-07T14:28:22Z" level=error msg="Failed to list containers for docker, error Cannot connect to the Docker daemon at tcp://dockerproxy:2375. Is the docker daemon running?" providerName=docker
time="2021-07-07T14:28:22Z" level=error msg="Failed to list containers for docker, error Cannot connect to the Docker daemon at tcp://dockerproxy:2375. Is the docker daemon running?" providerName=docker
time="2021-07-07T14:30:57Z" level=info msg="Configuration loaded from file: /traefik.yaml"
time="2021-07-08T18:14:17Z" level=error msg="accept tcp [::]:80: use of closed network connection" entryPointName=web
time="2021-07-08T18:14:17Z" level=error msg="Error while starting server: http: Server closed" entryPointName=web
time="2021-07-08T18:14:17Z" level=error msg="accept tcp [::]:443: use of closed network connection" entryPointName=web-secure
time="2021-07-08T18:14:17Z" level=error msg="Error while starting server: http: Server closed" entryPointName=web-secure
time="2021-07-08T18:14:17Z" level=error msg="Error while starting server: http: Server closed" entryPointName=web
time="2021-07-08T18:14:17Z" level=error msg="Error while starting server: http: Server closed" entryPointName=web-secure
time="2021-07-08T18:14:17Z" level=error msg="close tcp [::]:80: use of closed network connection" entryPointName=web
time="2021-07-08T18:14:17Z" level=error msg="close tcp [::]:443: use of closed network connection" entryPointName=web-secure
time="2021-07-08T18:14:40Z" level=info msg="Configuration loaded from file: /traefik.yaml"
time="2021-07-08T18:14:48Z" level=error msg="accept tcp [::]:443: use of closed network connection" entryPointName=web-secure
time="2021-07-08T18:14:48Z" level=error msg="Error while starting server: accept tcp [::]:443: use of closed network connection" entryPointName=web-secure
time="2021-07-08T18:14:48Z" level=error msg="Error while starting server: http: Server closed" entryPointName=web-secure
time="2021-07-08T18:14:48Z" level=error msg="accept tcp [::]:80: use of closed network connection" entryPointName=web
time="2021-07-08T18:14:48Z" level=error msg="Error while starting server: accept tcp [::]:80: use of closed network connection" entryPointName=web
time="2021-07-08T18:14:48Z" level=error msg="Error while starting server: http: Server closed" entryPointName=web
time="2021-07-08T18:15:02Z" level=info msg="Configuration loaded from file: /traefik.yaml"
time="2021-07-08T18:26:58Z" level=error msg="accept tcp [::]:443: use of closed network connection" entryPointName=web-secure
time="2021-07-08T18:26:58Z" level=error msg="accept tcp [::]:80: use of closed network connection" entryPointName=web
time="2021-07-08T18:26:58Z" level=error msg="Error while starting server: http: Server closed" entryPointName=web
time="2021-07-08T18:26:58Z" level=error msg="Error while starting server: http: Server closed" entryPointName=web-secure
time="2021-07-08T18:26:58Z" level=error msg="Error while starting server: http: Server closed" entryPointName=web
time="2021-07-08T18:26:58Z" level=error msg="Error while starting server: http: Server closed" entryPointName=web-secure
time="2021-07-08T18:26:58Z" level=error msg="close tcp [::]:80: use of closed network connection" entryPointName=web
time="2021-07-08T18:26:58Z" level=error msg="close tcp [::]:443: use of closed network connection" entryPointName=web-secure
time="2021-07-08T18:27:48Z" level=info msg="Configuration loaded from file: /traefik.yaml"
time="2021-07-09T00:31:59Z" level=error msg="accept tcp [::]:443: use of closed network connection" entryPointName=web-secure
time="2021-07-09T00:31:59Z" level=error msg="accept tcp [::]:80: use of closed network connection" entryPointName=web
time="2021-07-09T00:31:59Z" level=error msg="Error while starting server: http: Server closed" entryPointName=web
time="2021-07-09T00:31:59Z" level=error msg="Error while starting server: http: Server closed" entryPointName=web
time="2021-07-09T00:31:59Z" level=error msg="close tcp [::]:80: use of closed network connection" entryPointName=web
time="2021-07-09T00:31:59Z" level=error msg="Error while starting server: http: Server closed" entryPointName=web-secure
time="2021-07-09T00:31:59Z" level=error msg="Error while starting server: http: Server closed" entryPointName=web-secure
time="2021-07-09T00:31:59Z" level=error msg="close tcp [::]:443: use of closed network connection" entryPointName=web-secure
time="2021-07-09T00:32:20Z" level=info msg="Configuration loaded from file: /traefik.yaml"
So it might look like that you were supposed to have a nginx container running, and it is not currently running. I might be wrong (I haven’t used traefik actively yet). But it looks like you are using traefik to route the traffic between the container to the host.
Maybe nginx is not in a container, maybe it was running on your server directly
(in so case, check status with sudo service nginx status )
Try to see if you can locate either the container or service, and try to get it started
root@vmi284507:/etc# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
nginx alpine b9e2356ea1be 2 days ago 22.8MB
nextcloud fpm-alpine 236141c6113c 2 days ago 568MB
collabora/code latest 9a428589679f 2 days ago 1.39GB
redis alpine 500703a12fa4 2 days ago 32.3MB
portainer/portainer-ce latest 8bd64518b976 2 weeks ago 210MB
mariadb latest 6d5c5ed114ad 2 weeks ago 408MB
traefik latest 99f7809fa346 2 weeks ago 92MB
tecnativa/docker-socket-proxy latest e419047c5d43 5 months ago 21.1MB
adminer latest 234dd75608e9 5 months ago 91.3MB
containrrr/watchtower latest 2ddeb26d6d30 6 months ago 15.2MB
Notice the nginx server image showing inside the docker container ???
Well… now it is not showing anymore:
root@vmi284507:~# docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
ffe5ec01c9d5 collabora/code:latest "/bin/sh -c 'bash st…" 2 days ago Up 7 hours 9980/tcp collabora_online
1b91597298b7 nextcloud:fpm-alpine "/entrypoint.sh php-…" 2 days ago Up 7 hours 9000/tcp nextcloud
290effaca15d redis:alpine "docker-entrypoint.s…" 2 days ago Up 7 hours (healthy) 6379/tcp redis
57c005edc8e7 portainer/portainer-ce:latest "/portainer --host u…" 13 days ago Up 7 hours 8000/tcp, 9000/tcp portainer
949d37692f05 mariadb:latest "docker-entrypoint.s…" 2 weeks ago Up 7 hours (healthy) 3306/tcp nextcloud-db
e949deee693e traefik:latest "/entrypoint.sh trae…" 2 weeks ago Up 7 hours 0.0.0.0:80->80/tcp, 0.0.0.0:443->443/tcp traefik
1824b5446fe9 tecnativa/docker-socket-proxy:latest "/docker-entrypoint.…" 5 months ago Up 7 hours 2375/tcp dockerproxy
a8b7247157e6 containrrr/watchtower:latest "/watchtower --clean…" 6 months ago Up 7 hours 8080/tcp watchtower
I remember this morning i was browsing the docker container and nginx was not there… and then it showed up, but now it is gone again…
I just took a look at the commands history… here:
docker exec -it nginx /bin/sh
I remember i was not able to browse it… i got an error “no such container”… the same happens if i try to browse collabora, mariadb or portainer… (showing off my ignorance with docker here)
When nginx was showing up in the list, the server was not working anyways… same issue
To answer your question… nginx is not registered as a main service in the server… it was loaded inside the docker during the installation.
So my noob question here…
What happens if i just try to pull the nginx image to the container from the docker servers? as far as i understand traefik should interconnect everything automatically… but i do not want to make a mistake and lose this setup, i would have to update links i shared with many people…
Isn’t docker like a soup?.. you just add more ingredients to it and they will just blend together? Or i will need to internally setup things for the new nginx image inside the container?
Ah I see!
Now it would be nice to know how you have sat everything up to run, in terms of docker commands. I can see that you are not running it in docker-compose based on the naming of the containers (but still possible).
So, how are all the containers run by you? Are you using docker run [...] for instance?
If yes, a possible way to find the nginx configuration you have used before, is to check your bash history file on the host.
try history | grep nginx
Docker is essentially running pre-defined images in containers. And you can modify their behavior by passing in environment variables or by mounting in relevant configuration files.
In your case i would expect that nextcloud is exposing a volume, or is using a host-mounted volume for its files. In that case, nginx needs to know where these files are, so that it can (as a webserver) serve those files to the user
I am navigating all the files there and i am completely lost, like reading chinese… Im not even sure which file is the list of instructions or commands that docker executes.
In my noobish attempt i am trying to “start” nginx without luck:
root@vmi284507:~# docker start nginx
Error response from daemon: No such container: nginx
Error: failed to start containers: nginx
root@vmi284507:~# docker images ls
REPOSITORY TAG IMAGE ID CREATED SIZE
root@vmi284507:~# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
collabora/code latest 9c323ee534bb 22 hours ago 1.39GB
nginx alpine b9e2356ea1be 3 days ago 22.8MB
nextcloud fpm-alpine 236141c6113c 3 days ago 568MB
redis alpine 500703a12fa4 3 days ago 32.3MB
portainer/portainer-ce latest 8bd64518b976 2 weeks ago 210MB
mariadb latest 6d5c5ed114ad 2 weeks ago 408MB
traefik latest 99f7809fa346 2 weeks ago 92MB
tecnativa/docker-socket-proxy latest e419047c5d43 5 months ago 21.1MB
adminer latest 234dd75608e9 5 months ago 91.3MB
containrrr/watchtower latest 2ddeb26d6d30 6 months ago 15.2MB
root@vmi284507:~# docker stop nextcloud
nextcloud
root@vmi284507:~# docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
0bdd4e53e31c collabora/code:latest "/bin/sh -c 'bash st…" 17 hours ago Up 17 hours 9980/tcp collabora_online
57c005edc8e7 portainer/portainer-ce:latest "/portainer --host u…" 2 weeks ago Up 17 hours 8000/tcp, 9000/tcp portainer
949d37692f05 mariadb:latest "docker-entrypoint.s…" 2 weeks ago Up 17 hours (healthy) 3306/tcp nextcloud-db
e949deee693e traefik:latest "/entrypoint.sh trae…" 2 weeks ago Up 17 hours 0.0.0.0:80->80/tcp, 0.0.0.0:443->443/tcp traefik
1824b5446fe9 tecnativa/docker-socket-proxy:latest "/docker-entrypoint.…" 5 months ago Up 17 hours 2375/tcp dockerproxy
a8b7247157e6 containrrr/watchtower:latest "/watchtower --clean…" 6 months ago Up 17 hours 8080/tcp watchtower
root@vmi284507:~# docker start nextcloud
nextcloud
root@vmi284507:~# docker stop nginx
Error response from daemon: No such container: nginx
[quote="axo, post:8, topic:119806, full:true"]
I used an ansible playbook for the whole setup: [https://github.com/ReinerNippes/nextcloud_on_docker](https://github.com/ReinerNippes/nextcloud_on_docker)
I am navigating all the files there and i am completely lost, like reading chinese.. Im not even sure which file is the list of instructions or commands that docker executes.