IPv6 setup fails because URL is not found

[array-in-a-matrix]

Describe the bug IPv6 fails to setup as one of the endpoints needed does not exist. Output of just setup-all -K -vvv:

requests.exceptions.HTTPError: 404 Client Error: Not Found for url: http+docker://localhost/v1.44/networks/create

Click to see full output

```txt The full traceback is: Traceback (most recent call last): File "/tmp/ansible_community.general.docker_network_payload_00_8nr0s/ansible_community.general.docker_network_payload.zip/ansible_collections/community/docker/plugins/module_utils/_api/api/client.py", line 263, in _raise_for_status response.raise_for_status() File "/usr/lib/python3/dist-packages/requests/models.py", line 943, in raise_for_status raise HTTPError(http_error_msg, response=self) requests.exceptions.HTTPError: 404 Client Error: Not Found for url: http+docker://localhost/v1.44/networks/create The above exception was the direct cause of the following exception: Traceback (most recent call last): File "/tmp/ansible_community.general.docker_network_payload_00_8nr0s/ansible_community.general.docker_network_payload.zip/ansible_collections/community/docker/plugins/modules/docker_network.py", line 668, in main File "/tmp/ansible_community.general.docker_network_payload_00_8nr0s/ansible_community.general.docker_network_payload.zip/ansible_collections/community/docker/plugins/modules/docker_network.py", line 383, in __init__ File "/tmp/ansible_community.general.docker_network_payload_00_8nr0s/ansible_community.general.docker_network_payload.zip/ansible_collections/community/docker/plugins/modules/docker_network.py", line 610, in present File "/tmp/ansible_community.general.docker_network_payload_00_8nr0s/ansible_community.general.docker_network_payload.zip/ansible_collections/community/docker/plugins/modules/docker_network.py", line 539, in create_network File "/tmp/ansible_community.general.docker_network_payload_00_8nr0s/ansible_community.general.docker_network_payload.zip/ansible_collections/community/docker/plugins/module_utils/_api/api/client.py", line 573, in post_json_to_json return self._result(self._post_json(self._url(pathfmt, *args, versioned_api=True), data, **kwargs), json=True) File "/tmp/ansible_community.general.docker_network_payload_00_8nr0s/ansible_community.general.docker_network_payload.zip/ansible_collections/community/docker/plugins/module_utils/_api/api/client.py", line 270, in _result self._raise_for_status(response) File "/tmp/ansible_community.general.docker_network_payload_00_8nr0s/ansible_community.general.docker_network_payload.zip/ansible_collections/community/docker/plugins/module_utils/_api/api/client.py", line 265, in _raise_for_status raise_from(create_api_error_from_http_exception(e), e) File "/tmp/ansible_community.general.docker_network_payload_00_8nr0s/ansible_community.general.docker_network_payload.zip/ansible_collections/community/docker/plugins/module_utils/_api/errors.py", line 45, in create_api_error_from_http_exception raise_from(cls(e, response=response, explanation=explanation), e) File "", line 3, in raise_from ansible_collections.community.docker.plugins.module_utils._api.errors.NotFound: 404 Client Error for http+docker://localhost/v1.44/networks/create: Not Found ("could not find an available, non-overlapping IPv6 address pool among the defaults to assign to the network") fatal: [matrix.chatinamatrix.xyz]: FAILED! => changed=false invocation: module_args: api_version: auto appends: false attachable: null ca_cert: null client_cert: null client_key: null connected: [] debug: false docker_host: unix://var/run/docker.sock driver: bridge driver_options: {} enable_ipv6: true force: false internal: null ipam_config: null ipam_driver: null ipam_driver_options: null labels: {} name: matrix-addons scope: null ssl_version: null state: present timeout: 60 tls: false tls_hostname: null use_ssh_client: false validate_certs: false msg: 'An unexpected Docker error occurred: 404 Client Error for http+docker://localhost/v1.44/networks/create: Not Found ("could not find an available, non-overlapping IPv6 address pool among the defaults to assign to the network")' ```

To Reproduce My vars.yml file looks like this:

matrix_domain: chatinamatrix.xyz
matrix_homeserver_implementation: dendrite
matrix_homeserver_generic_secret_key: ''
devture_traefik_config_certificatesResolvers_acme_email: 'ssl[at]arrayinamatrix.xyz'
devture_postgres_connection_password: ''
matrix_playbook_reverse_proxy_type: playbook-managed-traefik
matrix_static_files_container_labels_base_domain_enabled: true
matrix_static_files_file_index_html_enabled: false
matrix_static_files_container_labels_base_domain_root_path_redirection_enabled: false
matrix_dendrite_client_api_registration_disabled: true
matrix_dendrite_allow_guest_access: true
matrix_dendrite_client_api_enable_registration_captcha: true
matrix_dendrite_client_api_recaptcha_public_key: ''
matrix_dendrite_client_api_recaptcha_private_key: ''
matrix_dendrite_client_api_recaptcha_siteverify_api: 'https://www.google.com/recaptcha/api/siteverify'
matrix_dendrite_user_api_auto_join_rooms:
- "#void:chatinamatrix.xyz"
- "#general:chatinamatrix.xyz"
- "#homeserver:chatinamatrix.xyz"
matrix_static_files_file_matrix_support_enabled: true
matrix_static_files_file_matrix_support_property_m_contacts:
- matrix_id: "@array.in.a.matrix:{{ matrix_domain }}"
email_address: matrix[at]arrayinamatrix.xyz
role: admin
matrix_dendrite_media_api_dynamic_thumbnails: true
matrix_dendrite_media_api_max_thumbnail_generators: 10
matrix_dendrite_sync_api_search_enabled: true
matrix_dendrite_client_api_rate_limiting_enabled: true
matrix_dendrite_client_api_rate_limiting_threshold: 20
matrix_dendrite_client_api_rate_limiting_cooloff_ms: 500
matrix_dendrite_report_stats: true
matrix_dendrite_configuration_extension_yaml: |
mscs:
mscs:
- msc2836 # enable threading
- msc2946 #enable space summery
rate_limiting:
exempt_user_ids:
- "@array.in.a.matrix:chatinamatrix.xyz"
- "@draupnirbot:chatinamatrix.xyz"
matrix_synapse_admin_enabled: true
matrix_dendrite_container_labels_public_client_synapse_admin_api_enabled: true
devture_traefik_dashboard_enabled: true
devture_traefik_dashboard_hostname: "{{ matrix_server_fqn_matrix }}"
devture_traefik_dashboard_basicauth_enabled: true
devture_traefik_dashboard_basicauth_user: ""
devture_traefik_dashboard_basicauth_password: ""
devture_systemd_docker_base_ipv6_enabled: true
matrix_sliding_sync_enabled: true
matrix_coturn_enabled: true
matrix_coturn_turn_external_ip_address: "89.147.110.160"
matrix_bot_draupnir_enabled: true
matrix_bot_draupnir_access_token: ""
matrix_bot_draupnir_management_room: ""
matrix_bot_maubot_enabled: true
matrix_bot_maubot_admins:
- admin: ""
matrix_client_element_enabled: true
matrix_client_element_themes_enabled: true
matrix_client_element_default_theme: 'dark'
matrix_client_hydrogen_enabled: true
matrix_client_cinny_enabled: true
matrix_client_schildichat_enabled: true
matrix_client_schildichat_themes_enabled: true
matrix_client_schildichat_default_theme: 'dark'
jitsi_enabled: true
jitsi_jicofo_auth_password: ""
jitsi_jvb_auth_password: ""
jitsi_jibri_recorder_password: ""
jitsi_jibri_xmpp_password: ""
jitsi_web_custom_config_extension: |
config.enableLayerSuspension = true;
config.disableAudioLevels = true;
etherpad_enabled: true
etherpad_admin_username: ""
etherpad_admin_password: ""
matrix_admin: "@array.in.a.matrix:{{ matrix_domain }}"
matrix_mautrix_discord_enabled: false

Enabling the new IPv6 option reproduces the issue:

devture_systemd_docker_base_ipv6_enabled: true

Expected behavior Setup completes successfully.

Matrix Server:

• OS: Ubuntu 22.04.4 LTS
• Architecture: amd64

Additional context I am running Dendrite 0.13.6+87f028d.

[der-domi]

I've got the same issue when setting

devture_systemd_docker_base_ipv6_enabled: true

The relevant message is

could not find an available, non-overlapping IPv6 address pool among the defaults to assign to the network

Seems that you just have to enable dynamic ipv6 subnet allocation via default-address-pools.

[dotlineX]

I added an IPv6 pool in default-address-pools and a fixed-cidr-v6 prefix. But I noticed these kept getting overridden. To fix this, I added the following to my vars.yml:

matrix_playbook_docker_installation_enabled: false

Otherwise, the /etc/docker/daemon.json file kept getting overridden.

Now v6 works fine for the synapse container 😄

[spantaleev]

Thanks to d9598f0 (slightly fixed up in 4d91e8b), you can now easily pass additional Docker options via the playbook.

Example:

matrix_playbook_docker_installation_daemon_options_custom:
  default-address-pools: ...
  fixed-cidr-v6: ...

These _custom options will be merged with the default ones (matrix_playbook_docker_installation_daemon_options_auto) defined here: https://github.com/spantaleev/matrix-docker-ansible-deploy/blob/4d91e8b57928ab49169678e6078727250f0b741f/group_vars/matrix_servers#L24-L26