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no live upstreams while connecting to upstream | error 500 & 503

See original GitHub issue

I am tired of solving a problem, for 2 weeks, I spend a lot of time solving a problem of a proxy that was in operation for more than 2 years.

I have changed the docker-compose files to the latest version that appears in the documentation, but this has not generated a positive change, so I request your valuable support.

the problem is that when trying to access some site, nginx returns a 500 or a 503 error.

this is the nginx container configuration:

version: '2'
services:
  nginx-proxy:
    image: nginxproxy/nginx-proxy
    container_name: nginx-proxy
    restart: always
    ports:
      - "80:80"
      - "443:443"
    volumes:
      - conf:/etc/nginx/conf.d
      - vhost:/etc/nginx/vhost.d
      - html:/usr/share/nginx/html
      - dhparam:/etc/nginx/dhparam
      - certs:/etc/nginx/certs:ro
      - /var/run/docker.sock:/tmp/docker.sock:ro
    network_mode: bridge
  docker-gen:
    image: nginxproxy/docker-gen
    container_name: nginx-proxy-gen
    command: -notify-sighup nginx-proxy -watch /etc/docker-gen/templates/nginx.tmpl /etc/nginx/conf.d/default.conf
    restart: always
    volumes_from:
      - nginx-proxy
    volumes:
      - ./nginx.tmpl:/etc/docker-gen/templates/nginx.tmpl:ro
      - /var/run/docker.sock:/tmp/docker.sock:ro
    network_mode: bridge
  acme-companion:
    image:  nginxproxy/acme-companion
    container_name: nginx-proxy-acme
    restart: always
    volumes:
      - certs:/etc/nginx/certs:rw
      - acme:/etc/acme.sh
      - /var/run/docker.sock:/var/run/docker.sock:ro
    volumes_from:
      - nginx-proxy
    depends_on:
      - "nginx-proxy"
    network_mode: bridge
    environment:
      DEFAULT_EMAIL: server@example.com
      NGINX_DOCKER_GEN_CONTAINER: nginx-proxy-gen
  whoami:
    image: jwilder/whoami
    restart: always
    expose:
      - "8000"
    environment:
      - VIRTUAL_HOST=whoami.local
      - VIRTUAL_PORT=8000
volumes:
  conf:
  vhost:
  html:
  dhparam:
  certs:
  acme:


networks:
  default:
    external:
      name: nginx-proxy

this is the client container

version: '2' # version of docker-compose to use
services: # configuring each container
  TS-DB1: # name of our mysql container
    image: mariadb:latest # which image to pull, in this case specifying v. 5.7
    volumes: # data to map to the container
      - ./database/:/var/lib/mysql # where to find our data -- we'll talk more about this
    restart: always # always restart the container after reboot
    environment: # environment variables -- mysql options in this case
      MYSQL_ROOT_PASSWORD: password
      MYSQL_DATABASE: dbname
      MYSQL_USER: dbuser
      MYSQL_PASSWORD: password

  TS-WP1: # name of our wordpress container
    depends_on: # container dependencies that need to be running first
      - TS-DB1
    image: wordpress:latest # image used by our container
    restart: always
    environment:
      VIRTUAL_HOST: example.com, www.example.com
      VIRTUAL_PORT: 8003
      LETSENCRYPT_HOST: www.example.com,example.com,cloud.example.com,tienda.example.com
      LETSENCRYPT_EMAIL: server@example.com
      WORDPRESS_DB_HOST: TS-DB1:3306 # default mysql port
      WORDPRESS_DB_NAME: dbname # default mysql port
      WORDPRESS_DB_USER: dbuser# default mysql port
      WORDPRESS_DB_PASSWORD: password # matches the password set in the db containe

    volumes: # this is where we tell Docker what to pay attention to
      - ./html:/var/www/html # mapping our custom theme to the container
      - ./php.ini:/usr/local/etc/php/conf.d/uploads.ini
networks:
  default:
    external:
      name: nginx-proxy

When I create nginx with docker-compose it dies after a few seconds with this message:

nginx-proxy       | WARNING: /etc/nginx/dhparam/dhparam.pem was not found. A pre-generated dhparam.pem will be used for now whil
e a new one
nginx-proxy       | is being generated in the background.  Once the new dhparam.pem is in place, nginx will be reloaded.
nginx-proxy       | forego      | starting dockergen.1 on port 5000
nginx-proxy       | forego      | starting nginx.1 on port 5100
nginx-proxy       | nginx.1     | 2021/06/20 19:33:23 [notice] 34#34: using the "epoll" event method
nginx-proxy       | nginx.1     | 2021/06/20 19:33:23 [notice] 34#34: nginx/1.21.0
nginx-proxy       | nginx.1     | 2021/06/20 19:33:23 [notice] 34#34: built by gcc 8.3.0 (Debian 8.3.0-6)
nginx-proxy       | nginx.1     | 2021/06/20 19:33:23 [notice] 34#34: OS: Linux 4.15.0-144-generic
nginx-proxy       | nginx.1     | 2021/06/20 19:33:23 [notice] 34#34: getrlimit(RLIMIT_NOFILE): 1048576:10485
76
nginx-proxy       | nginx.1     | 2021/06/20 19:33:23 [notice] 34#34: start worker processes
nginx-proxy       | nginx.1     | 2021/06/20 19:33:23 [notice] 34#34: start worker process 40
nginx-proxy       | nginx.1     | 2021/06/20 19:33:23 [notice] 34#34: start worker process 41
nginx-proxy       | nginx.1     | 2021/06/20 19:33:23 [notice] 34#34: start worker process 42
nginx-proxy       | nginx.1     | 2021/06/20 19:33:23 [notice] 34#34: start worker process 43
nginx-proxy       | dockergen.1 | 2021/06/20 19:33:23 Generated '/etc/nginx/conf.d/default.conf' from 4 conta
iners
nginx-proxy       | dockergen.1 | 2021/06/20 19:33:23 Running 'nginx -s reload'
nginx-proxy       | nginx.1     | 2021/06/20 19:33:23 [notice] 34#34: signal 1 (SIGHUP) received from 45, rec
onfiguring
nginx-proxy       | nginx.1     | 2021/06/20 19:33:23 [notice] 34#34: reconfiguring
nginx-proxy       | dockergen.1 | 2021/06/20 19:33:23 Watching docker events
nginx-proxy       | nginx.1     | 2021/06/20 19:33:23 [notice] 34#34: using the "epoll" event method
nginx-proxy       | nginx.1     | 2021/06/20 19:33:23 [notice] 34#34: start worker processes
nginx-proxy       | nginx.1     | 2021/06/20 19:33:23 [notice] 34#34: start worker process 48
nginx-proxy       | nginx.1     | 2021/06/20 19:33:23 [notice] 34#34: start worker process 49
nginx-proxy       | nginx.1     | 2021/06/20 19:33:23 [notice] 34#34: start worker process 50
nginx-proxy       | nginx.1     | 2021/06/20 19:33:23 [notice] 34#34: start worker process 51
nginx-proxy       | nginx.1     | 2021/06/20 19:33:23 [notice] 41#41: gracefully shutting down
nginx-proxy       | nginx.1     | 2021/06/20 19:33:23 [notice] 41#41: exiting
nginx-proxy       | nginx.1     | 2021/06/20 19:33:23 [notice] 42#42: gracefully shutting down
nginx-proxy       | nginx.1     | 2021/06/20 19:33:23 [notice] 42#42: exiting
nginx-proxy       | nginx.1     | 2021/06/20 19:33:23 [notice] 40#40: gracefully shutting down
nginx-proxy       | nginx.1     | 2021/06/20 19:33:23 [notice] 40#40: exiting
nginx-proxy       | nginx.1     | 2021/06/20 19:33:23 [notice] 42#42: exit
nginx-proxy       | nginx.1     | 2021/06/20 19:33:23 [notice] 40#40: exit
nginx-proxy       | nginx.1     | 2021/06/20 19:33:23 [notice] 43#43: gracefully shutting down
nginx-proxy       | nginx.1     | 2021/06/20 19:33:23 [notice] 43#43: exiting
nginx-proxy       | nginx.1     | 2021/06/20 19:33:23 [notice] 43#43: exit
nginx-proxy       | nginx.1     | 2021/06/20 19:33:23 [notice] 41#41: exit
nginx-proxy       | nginx.1     | 2021/06/20 19:33:23 [notice] 34#34: signal 17 (SIGCHLD) received from 40
nginx-proxy       | nginx.1     | 2021/06/20 19:33:23 [notice] 34#34: worker process 40 exited with code 0
nginx-proxy       | nginx.1     | 2021/06/20 19:33:23 [notice] 34#34: worker process 42 exited with code 0
nginx-proxy       | nginx.1     | 2021/06/20 19:33:23 [notice] 34#34: signal 29 (SIGIO) received
nginx-proxy       | nginx.1     | 2021/06/20 19:33:23 [notice] 34#34: signal 17 (SIGCHLD) received from 43
nginx-proxy       | nginx.1     | 2021/06/20 19:33:23 [notice] 34#34: worker process 43 exited with code 0
nginx-proxy       | nginx.1     | 2021/06/20 19:33:23 [notice] 34#34: signal 29 (SIGIO) received
nginx-proxy       | nginx.1     | 2021/06/20 19:33:23 [notice] 34#34: signal 17 (SIGCHLD) received from 41
nginx-proxy       | nginx.1     | 2021/06/20 19:33:23 [notice] 34#34: worker process 41 exited with code 0
nginx-proxy       | nginx.1     | 2021/06/20 19:33:23 [notice] 34#34: signal 29 (SIGIO) received
nginx-proxy       | dockergen.1 | 2021/06/20 19:33:24 Contents of /etc/nginx/conf.d/default.conf did not chan
ge. Skipping notification 'nginx -s reload'
nginx-proxy       | dockergen.1 | 2021/06/20 19:33:24 Received event start for container c61e5ec61dd2
nginx-proxy       | dockergen.1 | 2021/06/20 19:33:24 Received event start for container 9e41f8f62cfd
nginx-proxy       | forego      | sending SIGTERM to dockergen.1
nginx-proxy       | forego      | sending SIGTERM to nginx.1
nginx-proxy       | nginx.1     | 2021/06/20 19:33:24 [notice] 48#48: signal 15 (SIGTERM) received from 1, exiti
ng
nginx-proxy       | nginx.1     | 2021/06/20 19:33:24 [notice] 50#50: signal 15 (SIGTERM) received from 1, ex
iting
nginx-proxy       | nginx.1     | 2021/06/20 19:33:24 [notice] 48#48: exiting
nginx-proxy       | nginx.1     | 2021/06/20 19:33:24 [notice] 50#50: exiting
nginx-proxy       | nginx.1     | 2021/06/20 19:33:24 [notice] 48#48: exit
nginx-proxy       | nginx.1     | 2021/06/20 19:33:24 [notice] 50#50: exit
nginx-proxy       | nginx.1     | 2021/06/20 19:33:24 [notice] 34#34: signal 15 (SIGTERM) received from 1, ex
iting
nginx-proxy       | nginx.1     | 2021/06/20 19:33:24 [notice] 49#49: signal 15 (SIGTERM) received from 1, ex
iting
nginx-proxy       | nginx.1     | 2021/06/20 19:33:24 [notice] 49#49: exiting
nginx-proxy       | nginx.1     | 2021/06/20 19:33:24 [notice] 49#49: exit
nginx-proxy       | nginx.1     | 2021/06/20 19:33:24 [notice] 51#51: signal 15 (SIGTERM) received from 1, ex
iting
nginx-proxy       | nginx.1     | 2021/06/20 19:33:24 [notice] 51#51: exiting
nginx-proxy       | nginx.1     | 2021/06/20 19:33:24 [notice] 51#51: exit
nginx-proxy       | dockergen.1 | 2021/06/20 19:33:24 Received signal: terminated
nginx-proxy       | dockergen.1 | 2021/06/20 19:33:24 Received signal: terminated

When trying to access a site from port 80 or 443, the following error appears:

by 80 port:

nginx-proxy       | nginx.1     | example.com 192.168.1.231 - - [20/Jun/2021:20:38:51 +0000] "GET / HTTP/1.1" 502 157 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:89.0) Gecko/20100101 Firefox/89.0" "example.com-upstream"
nginx-proxy       | nginx.1     | 2021/06/20 20:38:51 [error] 45#45: *42 no live upstreams while connecting to upstream, client: 192.168.1.231, server: example.com, request: "GET / HTTP/1.1", upstream: "http://example.com-upstream/", host: "example.com"

by 443 port:


nginx-proxy       | nginx.1     | example.com 192.168.1.231 - - [20/Jun/2021:20:39:31 +0000] "GET / HTTP/2.0" 500 177 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:89.0) Gecko/20100101 Firefox/89.0" "-"
nginx-proxy       | nginx.1     | example.com 192.168.1.231 - - [20/Jun/2021:20:39:31 +0000] "GET /favicon.ico HTTP/2.0" 500 177 "https://example.com/" "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:89.0) Gecko/20100101 Firefox/89.0" "-"

when I try to get a new ssl certificate with docker exec nginx-proxy-acme /app/force_renew I get this:

nginx-proxy       | nginx.1     | cloud.example.com 34.221.255.206 - - [20/Jun/2021:20:44:28 +0000] "GET /.well-known/acme-challenge/EwjFpSqhqkuOcGVcPDwpE1HoPYOr8CFQlmaIUYWVj7g HTTP/1.1" 503 190 "-" "Mozilla/5.0 (compatible; Let's Encrypt validation server; +https://www.letsencrypt.org)" "-"
nginx-proxy       | nginx.1     | cloud.example.com 3.142.122.14 - - [20/Jun/2021:20:44:28 +0000] "GET /.well-known/acme-challenge/EwjFpSqhqkuOcGVcPDwpE1HoPYOr8CFQlmaIUYWVj7g HTTP/1.1" 503 190 "-" "Mozilla/5.0 (compatible; Let's Encrypt validation server; +https://www.letsencrypt.org)" "-"
nginx-proxy       | nginx.1     | cloud.example.com 66.133.109.36 - - [20/Jun/2021:20:44:28 +0000] "GET /.well-known/acme-challenge/EwjFpSqhqkuOcGVcPDwpE1HoPYOr8CFQlmaIUYWVj7g HTTP/1.1" 503 190 "-" "Mozilla/5.0 (compatible; Let's Encrypt validation server; +https://www.letsencrypt.org)" "-"
nginx-proxy       | nginx.1     | cloud.example.com 18.184.29.122 - - [20/Jun/2021:20:44:28 +0000] "GET /.well-known/acme-challenge/EwjFpSqhqkuOcGVcPDwpE1HoPYOr8CFQlmaIUYWVj7g HTTP/1.1" 503 190 "-" "Mozilla/5.0 (compatible; Let's Encrypt validation server; +https://www.letsencrypt.org)" "-"
nginx-proxy       | nginx.1     | tienda.example.com 66.133.109.36 - - [20/Jun/2021:20:44:33 +0000] "GET /.well-known/acme-challenge/sv7DLBk-Rp79GWz0oXno8JfRdtDdAQevJ9OumrChdCc HTTP/1.1" 503 190 "-" "Mozilla/5.0 (compatible; Let's Encrypt validation server; +https://www.letsencrypt.org)" "-"
nginx-proxy       | nginx.1     | tienda.example.com 52.39.4.59 - - [20/Jun/2021:20:44:33 +0000] "GET /.well-known/acme-challenge/sv7DLBk-Rp79GWz0oXno8JfRdtDdAQevJ9OumrChdCc HTTP/1.1" 503 190 "-" "Mozilla/5.0 (compatible; Let's Encrypt validation server; +https://www.letsencrypt.org)" "-"

and the foce renew result this:

docker exec nginx-proxy-acme /app/force_renew
Creating/renewal www.example.com certificates... (www.example.com example.com cloud.example.com tienda.example.com)
[Sun Jun 20 20:44:13 UTC 2021] Using CA: https://acme-v02.api.letsencrypt.org/directory
[Sun Jun 20 20:44:13 UTC 2021] Creating domain key
[Sun Jun 20 20:44:21 UTC 2021] The domain key is here: /etc/acme.sh/server@example.com/www.example.com/www.example.com.key
[Sun Jun 20 20:44:22 UTC 2021] Multi domain='DNS:www.example.com,DNS:example.com,DNS:cloud.example.com,DNS:tienda.example.com'
[Sun Jun 20 20:44:22 UTC 2021] Getting domain auth token for each domain
^B[Sun Jun 20 20:44:26 UTC 2021] Getting webroot for domain='www.example.com'
[Sun Jun 20 20:44:26 UTC 2021] Getting webroot for domain='example.com'
[Sun Jun 20 20:44:26 UTC 2021] Getting webroot for domain='cloud.example.com'
[Sun Jun 20 20:44:26 UTC 2021] Getting webroot for domain='tienda.example.com'
[Sun Jun 20 20:44:27 UTC 2021] www.example.com is already verified, skip http-01.
[Sun Jun 20 20:44:27 UTC 2021] example.com is already verified, skip http-01.
[Sun Jun 20 20:44:27 UTC 2021] Verifying: cloud.example.com
[Sun Jun 20 20:44:30 UTC 2021] cloud.example.com:Verify error:Invalid response from http://cloud.example.com/.well-known/acme-challenge/EwjFpSqhqkuOcGVcPDwpE1HoPYOr8CFQlmaIUYWVj7g [IP-PUBLIC]:
[Sun Jun 20 20:44:30 UTC 2021] Please check log file for more details: /dev/null

My environtment configuration:

$ docker-compose -version
docker-compose version 1.29.2, build 5becea4c

$ docker -v
Docker version 20.10.7, build f0df350

$ docker -v
Docker version 20.10.7, build f0df350

$ docker network ls
NETWORK ID     NAME          DRIVER    SCOPE
b4295e60714a   bridge        bridge    local
4728bf16f693   host          host      local
fdc61b1b1480   nginx-proxy   bridge    local
2e0bc41b39f7   none          null      local

$ uname -a
Linux serverhttp 4.15.0-144-generic #148-Ubuntu SMP Sat May 8 02:33:43 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux

$ free
              total        used        free      shared  buff/cache   available
Mem:        3930672      392052     2879056        4356      659564     3320632
Swap:       2097148           0     2097148

$ df
Filesystem     1K-blocks     Used Available Use% Mounted on
udev             1932496        0   1932496   0% /dev
tmpfs             393068     1492    391576   1% /run
/dev/sda2       76395292 20924768  51546764  29% /
tmpfs            1965336        0   1965336   0% /dev/shm
tmpfs               5120        0      5120   0% /run/lock
tmpfs            1965336        0   1965336   0% /sys/fs/cgroup
/dev/loop0         89088    89088         0 100% /snap/core/4917
/dev/loop1         89984    89984         0 100% /snap/core/5742
/dev/loop2         90368    90368         0 100% /snap/core/5897
overlay         76395292 20924768  51546764  29% /var/lib/docker/overlay2/a9d62074a9ac482884984df110e1a3eea05a34b592f8f6456deb57b85e526391/merged
overlay         76395292 20924768  51546764  29% /var/lib/docker/overlay2/7abe60ee34ecdae6c4a56de63aedd626bcb81ddffec0f1a17d942a39782dca56/merged
tmpfs             393064        0    393064   0% /run/user/1000
overlay         76395292 20924768  51546764  29% /var/lib/docker/overlay2/d27753aa5a6b2234b83a327dd94e02dc26b6813cd5b78b9fc192a44292b327ff/merged
overlay         76395292 20924768  51546764  29% /var/lib/docker/overlay2/4a4fb8b03de81bc4666d93911f0ba31db2b35dcf95c9af304ff30c56c6bbf532/merged
overlay         76395292 20924768  51546764  29% /var/lib/docker/overlay2/47327e53cbd26df9b76c45bafeaef4f95c06726ba0ca1fa51a20e5ae0c6c33db/merged
overlay         76395292 20924768  51546764  29% /var/lib/docker/overlay2/76f276b83f73c21c663d3af5f60c0a00b32c613e1d35db0a08a46e675caf065d/merged

the result of this:

docker inspect yournginxproxycontainer
docker exec yournginxproxycontainer nginx -T
docker exec yournginxproxycontainer cat /proc/1/cpuset
docker exec yournginxproxycontainer cat /proc/self/cgroup
docker exec yournginxproxycontainer cat /proc/self/mountinfo

I don’t know what happened, since these services have worked for more than 2 years and now they are no longer working.

I hope you can guide me.

best regards.

Issue Analytics

  • State:closed
  • Created 2 years ago
  • Comments:11 (6 by maintainers)

github_iconTop GitHub Comments

1reaction
rene-gomezcommented, Jul 1, 2021

Hello @buchdag

I have solved this problem, but it is not the best practice, because I have downgraded the version of nginx-proxy to version 0.8.0 and again the backend containers are working correctly

I would like to contribute to this project and find out what is happening with version 0.9.0 and 0.9.1, friend @buchdag please tell me what I need to send to continue testing the latest versions of the project.

About your doubts to my variables, I answer each one.

@rene-gomez I’ve spotted some problems in your setup, they might or might not be causing your issues. It’s going to take time to troubleshoot anyway.

In the nginx-proxy compose file:

network_mode: bridge

Why are you using this ?

I had added this variable to validate that the nginx containers were connected to the same network, but it never helped or made a correction to the problem, so it has been removed

In your application compose file:

VIRTUAL_HOST: example.com, www.example.com
LETSENCRYPT_HOST: www.example.com,example.com,cloud.example.com,tienda.example.com

after several errors this is my best configuration.

to each of the WP sites with different domain and subdomain, I have seen that for the VIRTUAL_HOST variable: I must add only the addresses that correspond to that container, for the LETSENCRYPT_HOST variable I must put all the domains and sub-domains that the bot Acme must validate, if I do not add all and in the same order, the bot that generates the new certificate will send an error, likewise all sites must be online so that a valid certificate can be generated

I don’t know if you do the same in your real compose file but you can’t put domains in LETSENCRYPT_HOST that aren’t also in VIRTUAL_HOST: the ACME challenge validation for those domains will fail (because nginx-proxy won’t be configured to handle them) and you won’t get your certificates.**

VIRTUAL_PORT: 8003

I found no mention of port 8003 in the wordpress Docker image documentation.

**This variable is the one that performs the communication of each WP site, after my tests I have seen that each of my WP site containers have a different port.

So far this configuration has worked for me and the sites work correctly**

Could you provide the result of

docker inspect yournginxproxycontainer
docker exec yournginxproxycontainer nginx -T
docker exec yournginxproxycontainer cat /proc/1/cpuset
docker exec yournginxproxycontainer cat /proc/self/cgroup
docker exec yournginxproxycontainer cat /proc/self/mountinfo

in another format than .tar.gz ?

Friend, I will leave this issue still open to be able to perform the tests with version 0.9.0 and 0.9.1

I don’t know much about how this containers works, but I will gladly provide whatever the project needs.

Regards

0reactions
buchdagcommented, Jul 12, 2021

The issue was most probably the bogus VIRTUAL_PORT environment variables.

Since this commit, the VIRTUAL_PORT is enforced even when it’s incorrect, which can result in non working configuration.

That in turn prevented certificate issuance with nginxproxy/acme-companion.

Read more comments on GitHub >

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