Podman-compose is not handling networks: RuntimeError: missing networks:

[Reizake]

When trying to make a static IP setting based specifically on this documentation under the "ipv4_address, ipv6_address" section:
https://docs.docker.com/compose/compose-file/compose-file-v3/

I am receiving the "RuntimeError: missing networks: default,podman" error. I have tried a variety of other methods to no avail. it seems that podman-compose is not properly reading the networks: section in the yaml

here is my compose file:

version: '3'

networks:
  default:
    external:
      name: podman
  podman:
    ipam:
      driver: default
      config:
        - subnet: "10.88.2.0/24"


services:

  app:
    image: nextcloud
    restart: always
    volumes:
      - ./nextcloud:/var/www/html 
    environment:
      - MYSQL_PASSWORD=xxxx
      - MYSQL_DATABASE=xxxx
      - MYSQL_USER=xxxx
      - MYSQL_HOST=xxxx
    networks:
      podman:
           ipv4_address:10.88.2.10

  db:
    image: mariadb
    restart: always
    command: --transaction-isolation=READ-COMMITTED --binlog-format=ROW
    volumes:
      - ./db:/var/lib/mysql
    environment:
      - MYSQL_ROOT_PASSWORD=xxxx
      - MYSQL_PASSWORD=xxxx
      - MYSQL_DATABASE=xxxx
      - MYSQL_USER=xxxx
    networks:
     podman:
          ipv4_address:10.88.2.11

And here are the results I get:

User@Computer:/DAS/PodmanVolumes/nextcloud$ sudo podman-compose  up -d
['podman', '--version', '']
using podman version: 3.2.1
Traceback (most recent call last):
  File "/usr/local/bin/podman-compose", line 8, in <module>
    sys.exit(main())
  File "/usr/local/lib/python3.9/dist-packages/podman_compose.py", line 1775, in main
    podman_compose.run()
  File "/usr/local/lib/python3.9/dist-packages/podman_compose.py", line 1022, in run
    self._parse_compose_file()
  File "/usr/local/lib/python3.9/dist-packages/podman_compose.py", line 1128, in _parse_compose_file
    raise RuntimeError(f"missing networks: {missing_nets_str}")
RuntimeError: missing networks: default,podman

I have tried using default as well as "network_mode" neither gave good results.
please let me know if there is any other info needed or things you would like me to try.

[muayyad-alsadi]

Question?

what version of podman-compose are you using?

NOTE

the external part in networks mean you need to manage it yourself, you should create this network, see compose spec

here is an example how to specify static ip

version: "3"
networks:
  app1_container_network:
    ipam:
      driver: default
      config:
        - subnet: "172.20.0.0/16"
services:
  app1:
    image: busybox
    command: httpd -f -p 8080 -h /etc/
    networks:
      app1_container_network:
        ipv4_address: 172.20.0.11

NOTE 2

specifying address is against the 12 factor you should use port mapping not ip address mapping.

[Reizake]

I am running:

['podman', '--version', '']
using podman version: 3.2.1
podman-composer version  1.0.3
podman --version 
podman version 3.2.1
exit code: 0

just to confirm. this will still put it in the pre-existing network "podman" correct?

Either way when I set my compose file as such:

version: '3'

networks:
  podman:
    ipam:
      driver: default
      config:
        - subnet: "10.88.2.0/24"


services:

  app:
    image: nextcloud
    restart: always
    volumes:
      - ./nextcloud:/var/www/html 
    environment:
      - MYSQL_PASSWORD=xxxx
      - MYSQL_USER=xxxx
      - MYSQL_HOST=xxxx
    networks:
       podman:
           ipv4_address:10.88.2.10

  db:
    image: mariadb
    restart: always
    command: --transaction-isolation=READ-COMMITTED --binlog-format=ROW
    volumes:
      - ./db:/var/lib/mysql
    environment:
      - MYSQL_ROOT_PASSWORD=xxxx
      - MYSQL_PASSWORD=xxxx
      - MYSQL_DATABASE=xxxx
      - MYSQL_USER=xxxx
    networks:
       podman:
          ipv4_address:10.88.2.11

it still spits this error:

user@computer:/DAS/PodmanVolumes/nextcloud$ sudo podman-compose  up -d
['podman', '--version', '']
using podman version: 3.2.1
Traceback (most recent call last):
  File "/usr/local/bin/podman-compose", line 8, in <module>
    sys.exit(main())
  File "/usr/local/lib/python3.9/dist-packages/podman_compose.py", line 1775, in main
    podman_compose.run()
  File "/usr/local/lib/python3.9/dist-packages/podman_compose.py", line 1022, in run
    self._parse_compose_file()
  File "/usr/local/lib/python3.9/dist-packages/podman_compose.py", line 1128, in _parse_compose_file
    raise RuntimeError(f"missing networks: {missing_nets_str}")
RuntimeError: missing networks: podman

[muayyad-alsadi]

would you please try latest branch.

pip3 install https://github.com/containers/podman-compose/archive/devel.tar.gz

I've tested it with equivalent yaml and it worked

---
version: "3"
networks:
  podman:
    ipam:
      driver: default
      config:
        - subnet: "10.88.2.0/24"
services:
  web1:
    image: busybox
    command: httpd -f -p 8080 -h /etc/
    networks:
      podman:
        ipv4_address: 10.88.2.10
  web2:
    image: busybox
    command: httpd -f -p 8080 -h /etc/
    networks:
      podman:
        ipv4_address: 10.88.2.11

[Reizake]

updating to the newest version fixed it. just for reference when wanting to use a pre-existing network you can ley it out as such:

networks:
  podman:
    external:
      name: podman


services:

  app:
    image: nextcloud
    restart: always
    volumes:
      - ./nextcloud:/var/www/html 
    environment:
      - MYSQL_PASSWORD=xxxx
      - MYSQL_DATABASE=xxxx
      - MYSQL_USER=xxxx
      - MYSQL_HOST=xxxx
    networks:
       podman:
         ipv4_address: 10.88.2.10
  db:
    image: mariadb
    restart: always
    command: --transaction-isolation=READ-COMMITTED --binlog-format=ROW
    volumes:
      - ./db:/var/lib/mysql
    environment:
      - MYSQL_ROOT_PASSWORD=xxxx
      - MYSQL_PASSWORD=xxxx
      - MYSQL_DATABASE=xxxx
      - MYSQL_USER=xxxx
    networks:
        podman:
          ipv4_address: 10.88.2.11

I also notice it puts my containers in a pod now, which I like, but is there a command to stop that from happening in the compose file. or just a general way of setting pod configuration?

[muayyad-alsadi]

, but is there a command to stop that from happening in the compose file. or just a general way of setting pod configuration?

to prevent creating a pod

  --no-pod              disable pod creation

to adjust pod params

  --pod-args pod_args   disable pod creation

there is no way to control that from inside the yaml

[jave]

Just a note that upgrading to podman-compose 1.0.4 fixed the same problem for me

[mchoeti]

there is no way to control that from inside the yaml
Hm... but doing this
podman-compose up --no-pod

results in
unrecognized arguments: --no-pod

Do you have an example?

[dpward]

updating to the newest version fixed it.

For those finding this online and looking to backport a patch: the issue originally described here was #399, which was fixed with 4aa08cd.

[bigon]

Any plan to do a new release?

[midu16]

@muayyad-alsadi is there any plan on the podman-compose 1.0.4 rpm release? Fedora 37 is still using the 1.0.3.

[mreiche]

I'm facing the same issue with newer versions:

podman-compose --version

podman-compose version: 1.0.6
['podman', '--version', '']
using podman version: 3.4.4
podman-compose version 1.0.6
podman --version
podman version 3.4.4
exit code: 0

podman-compose up

 Error tearing down partially created network namespace for container c43...c48: CNI network "my_bridge" not found

The network itself was created and exists:

podman network ls

WARN[0000] Error validating CNI config file /etc/cni/net.d/my_bridge.conflist: [plugin bridge does not support config version "1.0.0" plugin portmap does not support config version "1.0.0" plugin firewall does not support config version "1.0.0" plugin tuning does not support config version "1.0.0"]
NETWORK ID    NAME           VERSION     PLUGINS
2f259bab93aa  podman         0.4.0       bridge,portmap,firewall,tuning
177b12cc34e2  my_bridge  1.0.0       bridge,portmap,firewall,tuning,dnsname

Edit: It only works when I use the preconfigured bridge network podman.

networks:
  my_bridge:
    external:
      name: podman

[Antoniossss]

Having the exact same issue as @mreiche here. Any ideas??